Please wait a minute...
欢迎访问《日用化学工业(中英文)》,今天是

当期目录

    2025年, 第55卷, 第3期 刊出日期:2025-03-22 上一期    下一期
    特邀专稿
    基于两亲性Janus-SiO2颗粒制备高稳定性O/W型Pickering乳液
    Preparation of highly stable O/W Pickering emulsion based on amphiphilic Janus-SiO2 particles
    张可可, 邹欢金, 樊晔, 张永民, 刘雪锋, 方银军
    2025 (3):  271-278.  doi: 10.3969/j.issn.2097-2806.2025.03.001
    摘要 ( 106 )   HTML ( 38 )   PDF(8248KB) ( 65 )  

    采用Pickering乳液模板法以亲水性二氨基硅烷和疏水性辛基硅烷制备Janus-SiO2纳米颗粒,红外、热重、接触角和Zeta电位结果表明氨基硅烷和辛基硅烷分别成功接枝在SiO2颗粒表面。以Janus-SiO2颗粒稳定Pickering乳液,当均质强度为15 000 r/min、Janus-SiO2颗粒质量分数为1.0%、水油体积比5∶5时乳化效果最佳,液滴平均粒径约为56.6 μm;且该Janus-SiO2颗粒可制备高内相乳液并具有低能乳化及油相普适性。稳定性测试结果表明所制备的乳液可在室温下稳定两个月以上并且在4~90 ℃环境下保持稳定;在水相pH较低或较高以及高质量浓度NaCl下均可成乳,表明该乳液具有优异的耐酸碱性和耐电解质性,同时随着电解质质量浓度的增加乳液黏度有所增大。基于该Janus-SiO2颗粒制备的O/W乳液具有良好的稳定性,在高温、高电解质条件下在油污清洗方面具有潜在应用。

    Janus-SiO2 nanoparticles were prepared by Pickering emulsion templating method by using 3-(2-aminoethylamino)propyltrimethoxysilane and n-octyl trimethoxysilane. The results of FT-IR, TG, contact angle and Zeta potential confirmed the successful grafting of amino groups and octyl groups onto the surface of SiO2 nanoparticles. Considering the emulsion droplet diameter and emulsification index, the optimal emulsification conditions were obtained at a homogenization intensity of 15 000 r/min, Janus-SiO2 nanoparticle mass fraction of 1.0%, and water-to-oil volume ratio of 5∶5. The average droplet diameter of the Pickering emulsion thus obtained was approximately 56.6 μm. The Janus-SiO2 nanoparticles exhibited good emulsification performance, which could stabilize high internal phase emulsion and have low-energy emulsification and broad oil phase universality. The results of stability test demonstrated that the Pickering emulsion prepared remained stable at room temperature for more than two months and maintained stability in the temperature range of 4 to 90 ℃. The Pickering emulsion could be formed even when the aqueous phase had low or high pH or high mass concentrations of NaCl, indicative of excellent resistance to acid, base and electrolyte. In addition, the viscosity of the emulsion increased with increasing electrolyte mass concentration. The O/W Pickering emulsion stabilized with Janus-SiO2 particles exhibited remarkable stability, which had potential for applications in cleaning of oil stains under high-temperature and high-electrolyte conditions.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    W-SN交联剂的合成及其交联性能研究
    Synthesis and crosslinking properties of W-SN crosslinking agent
    程海兵, 张勇, 孙磊, 李唯佳, 陈志, 唐聪明, 常丽
    2025 (3):  279-285.  doi: 10.3969/j.issn.2097-2806.2025.03.002
    摘要 ( 74 )   HTML ( 9 )   PDF(1794KB) ( 22 )  

    压裂是一种对低渗油藏进行改造、增加油气产量的重要手段。压裂作业的正常进行很大程度上取决于压裂液是否具有较优的耐温耐剪切性能,而压裂液的耐温耐剪切性能又取决于交联剂。本研究以三聚氰胺、四硼酸钠、氧氯化锆作为原料,通过“一步法”合成了一种新型的W-SN交联剂,并对其交联性能进行了评价。W-SN交联剂较佳制备条件:氧氯化锆5%、三聚氰胺为1%、四硼酸钠2.5%、pH 0.5、温度90 ℃、反应时间4 h;其与部分水解聚丙烯酰胺(HPAM)形成凝胶的较优条件:交联时间为25 min、HPAM与W-SN质量比为100∶2.5。制备的W-SN交联剂及以其交联的HPAM凝胶具有良好的抗盐性和稳定性,可满足压裂施工要求。

    Fracturing is an important stimulation means for low-permeability oil reservoirs to increase their productivity. The normal operation of hydraulic fracturing largely depends on whether the fracturing fluid has excellent heat and shear resistance which in turn depends on the crosslinking agent. In this work, melamine, sodium tetraborate, and zirconium oxychloride were used as raw materials to synthesize a new W-SN crosslinking agent through “one-step method”. Under laboratory conditions, the performance of the fracturing fluid used with this crosslinking agent was evaluated. By study of the preparation process of W-SN crosslinking agent, the optimized synthesis conditions were obtained as follows: 5wt% zirconium oxychloride, 1wt% melamine, 2.5wt% sodium tetraborate, pH of 0.5, temperature of 90 ℃, and reaction time of 4 hours. The optimized conditions for gelation with partially hydrolyzed polyacrylamide (HPAM) were as follows: crosslinking time, 25 minutes; mass ratio of HPAM to W-SN, 100∶2.5. Both W-SN crosslinker and the HPAM gel show improved salt tolerance and thermal stability, satisfying the practical requirements of hydraulic fracturing operation.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    基础研究
    载香精Pickering乳液型多核胶囊制备及缓释性能研究
    Preparation and sustained release performance of multi-core capsules based on fragrance-loaded Pickering emulsions
    刘心怡, 陈娟博, 侯皓月, 侯佳伟, 石美玲, 曾飒, 孟涛
    2025 (3):  286-294.  doi: 10.3969/j.issn.2097-2806.2025.03.003
    摘要 ( 59 )   HTML ( 8 )   PDF(3752KB) ( 41 )  
    天然可降解胶囊为持续释放香味提供了一个平台,然而,封装效率低、难以持续释放等挑战仍然限制了载香精胶囊的应用。本工作利用天然材料海藻酸钠和明胶溶液作为水相,薰衣草香精溶解在辛癸酸甘油酯(GTCC)中形成油相,SiO2纳米粒子作为固体乳化剂,乳化形成了O/W型的载香精Pickering乳液,利用滴注法以乳液为模板制备了载香精的多核胶囊。结果表明,制备的多核胶囊具有球形形态和多核结构,并且多核胶囊的封装率高达99.6%。此外,载香精Pickering乳液型多核胶囊在25 ℃下能缓释香精,49天释放了32.5%左右,展现出了良好缓释性能。这归功于多核结构、Pickering乳液界面纳米颗粒膜和水凝胶壳对封装香精的保护作用。本研究有望为香精缓释技术在食品、化妆品、纺织品等领域的应用提供新的策略。

    Naturally degradable capsule provides a platform for sustained fragrance release. However, practical challenges such as low encapsulation efficiency and difficulty in sustained release are still limited in using fragrance-loaded capsules. In this work, the natural materials sodium alginate and gelatine are dissolved and act as the aqueous phase, lavender is dissolved in caprylic/capric triglyceride (GTCC) as the oil phase, and SiO2 nanoparticles with neutral-wettability as a solid emulsifier to form O/W Pickering emulsions simultaneously. Finally, multi-core capsules are prepared using the drop injection method with emulsions as templates. The results show that the capsules have been successfully prepared with a spherical morphology and multi-core structure, and the encapsulation rate of multi-core capsules can reach up to 99.6%. In addition, the multi-core capsules possess desirable sustained release performance, the cumulative sustained release rate of fragrance at 25 ℃ over 49 days is only 32.5%. It is attributed to the significant protection of multi-core structure, Pickering emulsion nanoparticle membranes, and hydrogel network shell for encapsulated fragrance. This study is designed to deliver a new strategy for using sustained-release technology with fragrance in food, cosmetics, textiles, and other fields.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    三嗪基Gemini表面活性剂与2-巯基乙醇在3.5% NaCl中对碳钢的缓蚀协同效应研究
    Synergistic effect of triazine-based Gemini surfactant and 2-mercaptoethanol on corrosion inhibition of carbon steel in 3.5%NaCl solution
    梁鹏慧, 原梦颖, 阮义蕾, 高国芳, 胡志勇, 朱海林
    2025 (3):  295-304.  doi: 10.3969/j.issn.2097-2806.2025.03.004
    摘要 ( 52 )   HTML ( 3 )   PDF(3421KB) ( 24 )  

    以三聚氯氰、十二胺、乙二胺、N, N-二甲基-1, 3-丙二胺、溴乙烷为原料,合成了三嗪基Gemini表面活性剂(C12-2-C12),并通过傅里叶变换红外光谱、核磁共振氢谱、高分辨质谱对其结构进行了表征。通过静态失重测试、电化学阻抗、动电位极化研究了在60 ℃,3.5% NaCl溶液中C12-2-C12与2-巯基乙醇(TZ)对碳钢缓蚀的协同作用。结果表明,当n(C12-2-C12)∶n(TZ)=7∶3时,复配后缓蚀剂的缓蚀率可达95.47%,缓蚀协同参数为1.52。动电位极化测试结果表明该复配缓蚀剂为混合型缓蚀剂。扫描电子显微镜与X射线光电子能谱仪结果表明,C12-2-C12与TZ共同吸附在碳钢表面,增强了吸附膜的致密性。同时利用分子动力学模拟对其缓蚀机理进行具体阐释。

    The triazine-based Gemini surfactant C12-2-C12 was synthesized with cyanuric chloride, dodecylamine, ethylenediamine, N,N-dimethyl-1, 3-propanediamine and ethyl bromide as raw materials. The structure of the product was characterized by Fourier transform infrared spectroscopy, 1H NMR and high-resolution mass spectrometry. The synergistic effect of C12-2-C12 and 2-mercaptoethanol (TZ) on corrosion inhibition of carbon steel in 3.5% NaCl solution at 60 ℃ was investigated by static weight loss test, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization test. The results showed that, the corrosion inhibition rate could reach 95.47% when n(C12-2-C12) ∶n(TZ) = 7∶3, and the synergistic parameter of corrosion inhibition was 1.52. The potentiodynamic polarization curves indicated that the mixed corrosion inhibitors in 3.5% NaCl solution behaved like a hybrid corrosion inhibitor. The results of scanning electron microscopy and X-ray photoelectron spectroscopy showed that the presence of TZ could complement the adsorption sites of C12-2-C12 on the surface of carbon steel and enhance the denseness of the adsorption film, thus enhancing the corrosion inhibition performance. Molecular dynamics simulations were used to specifically elucidate the corrosion inhibition mechanism, which proved that there was good synergistic corrosion inhibition effect. This work would be expected to improve the ability of corrosion inhibitors to act in harsh environments and prolong the protective period.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    开发与应用
    裂缝性特低渗透油藏CO2复合封窜体系适应性研究
    Study on the adaptability of CO2 composite channeling plugging system in fractured ultra-low permeability reservoirs
    杨红, 杨康, 刘瑛, 沈振振, 刘凯, 刘芳娜, 汪章超
    2025 (3):  305-312.  doi: 10.3969/j.issn.2097-2806.2025.03.005
    摘要 ( 58 )   HTML ( 3 )   PDF(1548KB) ( 27 )  

    延长油田为裂缝性特低渗透油藏,储层渗透率低、非均质性强,天然微裂缝和人工裂缝交错,缝网复杂,同时受地层水矿化度高、Ca2+质量浓度高和CO2驱油过程中地层水呈弱酸性的综合影响,常规封窜体系难以适用,针对性开展了复合封窜体系性能评价、注入参数和段塞尺寸及组合方式优化,并通过径向流注采模拟验证了体系的适应性。研究表明,质量分数为0.2% AOS+0.2% MX-20+0.4% HPAM泡沫体系综合性能最好,起泡体积为510 mL、半衰期为3 940 s,较佳气液比、注入速度和注入量分别为3∶1、0.3 mL/min和0.4 PV;凝胶与CO2配伍性良好,强度可满足对裂缝的封堵要求;复合封窜体系的较佳段塞尺寸及组合方式为0.1 PV凝胶+0.4 PV泡沫+0.1 PV凝胶。径向流模型验证实验表明复合体系在裂缝性低渗油藏的适应性较好。

    The Yanchang oilfield is characterized as a fractured, ultra-low permeability reservoir with low permeability, strong heterogeneity, and a complex network of natural micro-fractures and artificial fractures. It is also influenced by high salinity of formation water, high mass concentration of Ca2+, and weakly acidic formation water during the CO2 flooding process, making conventional plugging systems unsuitable. In this work, the performance of a composite plugging system was evaluated, the injection parameters were optimized, and the slug size and combination method were also optimized. The adaptability of the system was verified through radial flow simulation of injection and production. The results showed that the foam composed of 0.2% AOS+0.2% MX-20+0.4% HPAM exhibited the best comprehensive performance, with a foam volume of 510 mL and a half-life of 3 940 seconds. The optimal gas-liquid ratio, injection rate, and injection volume were 3∶1, 0.3 mL/min, and 0.4 PV, respectively. The gel was compatible with CO2, and its strength could meet the requirements for plugging fractures. The optimal slug size and combination method for the composite channeling plugging system were 0.1 PV gel+0.4 PV foam+0.1 PV gel. The validation experiment with radial flow model demonstrated that the composite system had good adaptability in fractured low-permeability oil reservoirs.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    酸改性NaY分子筛对高湿度下甲苯的吸附研究
    Adsorption of toluene by acid-modified NaY molecular sieve at high humidity
    李胜, 孟杰, 刘经伟, 高丙莹, 姚超
    2025 (3):  313-321.  doi: 10.3969/j.issn.2097-2806.2025.03.006
    摘要 ( 58 )   HTML ( 2 )   PDF(2003KB) ( 17 )  

    针对潮湿条件下分子筛对VOCs吸附性能急剧下降的问题,采用盐酸和柠檬酸分别对NaY分子筛进行脱铝改性,制备出高性能抗水性NaY分子筛。利用X射线衍射仪(XRD)、N2吸附-脱附、扫描电子显微镜(SEM)、X射线荧光光谱仪(XRF)等表征手段,考察改性前后NaY分子筛骨架结构、比表面积、元素含量等变化情况。同时,进行静态水蒸气和潮湿条件下动态甲苯吸附性能测试。结果表明,改性后样品对静态水蒸气的吸附量逐渐降低。相对湿度(RH)为80%时,0.5M-CA-NaY分子筛的改性效果最佳,甲苯的穿透时间和饱和吸附量分别是未改性前的6倍和4.3倍。吸附动力学模型表明改性前后NaY分子筛的吸附过程主要以单层吸附为主。吸附-脱附5次后,0.5M-CA-NaY分子筛展现了优异的再生性能,仍然具有95%以上的循环利用率。

    To solve the problem that the adsorption performance of molecular sieve on VOCs decreased sharply under humid conditions, in this work, hydrochloric acid and citric acid were respectively used to dealuminate NaY molecular sieve to prepare high-performance water-resistant NaY molecular sieve. X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM) and X-ray fluorescence spectroscopy(XRF) were used to investigate the changes in the skeleton structure, specific surface area and element content of the NaY molecular sieve before and after modification. The adsorption of toluene was tested under static water vapor and humid conditions. The results showed that the adsorption capacity for static water vapor gradually decreased after modification. When the relative humidity (RH) was 80%, the most successful modification effect was indicated by 0.5M-CA-NaY molecular sieve whose breakthrough time and saturated adsorption capacity of toluene were 6 times and 4.3 times higher than that before modification, respectively. The adsorption kinetic model showed that the adsorption process of NaY molecular sieve before and after modification was mainly monolayer adsorption. After 5 cycles of adsorption-desorption, 0.5M-CA-NaY molecular sieve showed excellent regeneration performance and still had a recycling rate of more than 95%.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    高含蜡原油聚合物共混物高效降凝剂的合成及性能研究
    Preparation and performance evaluation of polymers and polymer blend as high-efficiency pour point depressant for high-wax crude oil
    宋京
    2025 (3):  322-327.  doi: 10.3969/j.issn.2097-2806.2025.03.007
    摘要 ( 54 )   HTML ( 4 )   PDF(1071KB) ( 27 )  

    高含蜡原油多具有高密度、高黏度和高凝点等特点,导致在开采、运输及储存过程中都需要克服较高的成本。为了克服上述问题,研究合成了两种聚合物及其共混物作为降黏剂以提升高含蜡原油的流动性。分别以丙烯酸壬酯、乙酸乙烯酯和丙烯酸十二酯、甲基丙烯酸甲酯为单体通过自由基聚合法制备出两种共聚物P1和P2,以两种共聚物及其共混物P3作为降凝减阻剂,研究了在不同添加含量下对高含蜡原油黏度、倾点和剪切稳定性指数的影响规律。实验结果表明P1、P2和P3均具有显著的降凝减阻性能,其中P3效果最佳,在加量为4%时原油样品的倾点可由28.3 ℃降低至4.4 ℃,黏度最大降幅可达75.293%,剪切稳定性分析结果显示P3高速剪切后的降凝幅度回升值为2.1 ℃,降黏率回升值为5.76%,并且在所有浓度下的PVL和PSSI值均较小,表现出良好的机械剪切稳定性。在管道运输原油的过程中,P3作为一种高效降凝减阻剂可有效降低高含蜡原油的黏度及输油阻力,减少管道输油能耗。

    High-wax crude oil often has the features of high density, high viscosity, and high pour point, which leads to high costs during exploitation, transportation, and storage. To overcome the above problems, in this work, two polymers were synthesized via free radical polymerization. The two polymers and their blends were used as viscosity reducers to improve the flowability of high-wax crude oil. The copolymer P1 was synthesized by using nonyl acrylate and vinyl acetate as monomers, while the copolymer P2 was synthesized by using dodecyl acrylate and methyl methacrylate as monomers. The effects of polymer amount on the viscosity parameters, pour point and shear stability index of high-wax crude oil were studied, in which the two copolymers and their blend P3 acted as pour point depressants. The experimental results showed that P1, P2, and P3 all had significant pour point depression and drag reduction performance, among which P3 was the best. At a dosage of 4%, P3 could reduce the pour point of the crude oil sample from 28.3 ℃ to 4.4 ℃ and the viscosity could be maximally reduced by 75.293%. The results of shear stability analysis showed that, the adverse effects of high-speed shear on freezing point and viscosity reduction were not very significant in presence of P3 (The freezing point was merely raised by 2.1 ℃ after high-speed shear and the viscosity reduction rate was merely decreased by 5.76% after high-speed shear), and the PVL and PSSI values were small at all concentrations, indicative of good shear stability. Therefore, P3 was expected as an efficient pour point depressant and drag reducing agent which could effectively reduce the viscosity of high-wax crude oil and reduce the drag during transportation, and thus reduce the energy consumption during pipeline transportation.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    妥尔油基胺乙基咪唑啉的合成和性能
    Synthesis and properties of tall oil aminoxyethyl imidazoline
    张高飞, 张威, 刘兵
    2025 (3):  328-332.  doi: 10.3969/j.issn.2097-2806.2025.03.008
    摘要 ( 60 )   HTML ( 11 )   PDF(1157KB) ( 24 )  
    以二乙烯三胺和可再生生物质——妥尔油酸为原料,考察了3, 4, 5-三氟苯硼酸、磷酸和氢氧化钾等催化剂对妥尔油基胺乙基咪唑啉(TON100)转化率的影响,用傅里叶变换红外光谱和ES-MS对TON100结构进行了验证。用静态失重法考察了TON100在盐酸和硫酸溶液中对A3钢片的缓蚀性能测试。结果表明,3, 4, 5-三氟苯硼酸作催化剂,添加量为总量的0.3wt%,反应温度为230 ℃时,妥尔油酸转化率为99.4%;在4%盐酸溶液中,实验温度为90 ℃,TON100添加量为50 mg/L时,缓蚀率最高为95.1%;在4%的硫酸体系中,30 ℃时,TON100添加量为100 mg/L时,缓蚀率为85.1%。

    Tall oil acid is a renewable biomass material. In this work, the effects of different types of catalysts such as 3, 4, 5-trifluorophenylboronic acid, phosphoric acid, and potassium hydroxide on the conversion rate to tall oil aminoxyethyl imidazoline (TON100) were investigated, in which diethylenetriamine and tall oil acid were used as raw materials. The structure of TON100 was characterized by FT-IR and ES-MS. Its corrosion inhibition performance to A3 steel sheets in hydrochloric acid solution and sulfuric acid solution was investigated by static weight loss method. The results showed that when the reaction temperature was 230 ℃, 3,4,5-trifluorophenylboronic acid was used as a catalyst and its amount was 0.3 wt% of the total amount, the conversion rate of tall oil acid was 99.4%. In a 4 wt% hydrochloric acid solution, the best dosage of TON100 for corrosion inhibition was 25 mg/L at 30 ℃ and 60 ℃. In contrast, at the experimental temperature of 90 ℃, the best dosage of TON100 was 50 mg/L and the highest corrosion inhibition rate was obtained as 95.1%; at 30 ℃, in a 4 wt% sulfuric acid solution, when the amount of TON100 added was 100 mg/L, the corrosion inhibition rate was 85.1%. Therefore, TON100 had good corrosion inhibition effects against both hydrochloric acid and sulfuric acid.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    黄芩与丹参配伍面膜剂的成型工艺及抗菌活性研究
    Research on the forming process and antibacterial activity of the facial mask combined Scutellaria baicalensis Georgi with Salvia miltiorrhiza Bge.
    宋卫强, 陈亚莉, 杨红艳, 张帆
    2025 (3):  333-340.  doi: 10.3969/j.issn.2097-2806.2025.03.009
    摘要 ( 95 )   HTML ( 7 )   PDF(1434KB) ( 33 )  
    黄芩与丹参配伍制备成面膜剂,采用响应面试验法筛选并优化面膜成型工艺,建立以高效液相色谱法为核心的活性成分含量快速分析技术,考察以痤疮丙酸杆菌与金黄色葡萄球菌为目标的面膜剂体外抑菌活性。结果表明,通过单因素试验确定了影响成型工艺的丙三醇、1, 3-丁二醇、羟乙基纤维素等三个主要因素,利用Box-Behnken试验和响应面法,对三个显著因子的变化参数进行了优化考察,确定了最优的工艺条件;采用高效液相色谱法明确了面膜剂中12个指标性活性成分,确定了色谱条件,建立了面膜质量的快速分析方法和流程;面膜体外抑菌试验发现面膜剂对痤疮丙酸杆菌、金黄色葡萄球菌具有一定的抑菌效果,且在10 h内能有效地、持续地发挥抑菌作用,对阳性药物DP-300具有较好的抑菌协同与相加作用,也体现了作为面膜剂应有的温和抑菌效果。

    Acne is a common skin disease, and the occurrence of acne is closely related to Propionibacterium acnes. Research shows that Scutellaria baicalensis Georgi and Salvia miltiorrhiza Bge. have good antibacterial activities, especially to Propionibacterium acnes. The facial mask combined S. baicalensis Georgi with S. miltiorrhiza Bge. was prepared, and its forming process was optimized through response surface test. A rapid analysis technology for active ingredients was established using high performance liquid chromatography (HPLC), and the experiments were held to investigate the antibacterial activities of Propionibacterium acnes and Staphylococcus aureus in vitro. The results show that three main factors affecting the forming process are glycerol, 1, 3-butanediol and hydroxyethyl cellulose identified by single factor test. Box-Behnken test and response surface method are used to optimize the variation parameters of the three significant factors, and its optimal process conditions. The twelve indicative activities in the facial mask are identified by HPLC, and the rapid quality analysis method and its chromatographic conditions are established. Also, the bacteriostatic test in vitro of the facial mask confirms that it shows certain bacteriostatic effects on Propionibacterium acens and Staphylococcus aureus, and can exert effectively and continuously within ten hours. When it is combined with positive drug DP-300, it shows better synergistic or additive bacteriostatic effects, which are considered as the mild bacteriostatic effects due to facial mask.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    原油乳状液粒径及稳定性影响因素研究
    Study on the influencing factors for the droplet size and stability of crude oil emulsions
    何黎, 李华斌, 何刚, 罗磊
    2025 (3):  341-348.  doi: 10.3969/j.issn.2097-2806.2025.03.010
    摘要 ( 59 )   HTML ( 14 )   PDF(9161KB) ( 22 )  
    乳状液性能受乳化剂种类、乳化剂浓度、含水率(油水体积比)及搅拌转速(剪切速率)等因素影响。文章采用乳状液析水率及沙德平均粒径为评估指标,探讨搅拌转速、含水率及二者共同作用对乳状液粒径及稳定性的影响。结果表明,YMX-1乳化体系在温度为50 ℃、含水率为50%时,搅拌转速从7 000 r/min增至15 000 r/min,沙德平均粒径从18.83 μm降至14.54 μm,析水率从72.00%减小至50.80%,表明随搅拌转速增加,乳状液粒径减小,稳定性增强;搅拌转速为7 000 r/min时,含水率从40%增至70%时,沙德平均粒径从17.11 μm增至27.65 μm,析水率从58.50%增至86.29%,表明随含水率增加,乳状液粒径增大,稳定性减弱。对正交实验结果进行方差分析和回归分析,结果表明含水率对乳状液粒径及稳定性影响比搅拌转速更大;得到了沙德平均粒径(D)和稳定性评分(VF)关于含水率(X)和搅拌转速(Y)预测方程:D=16.55+2.85X-2.94Y-1.5XY+1.35X2+1.73Y2VF=9.0-3.54X+1.55Y,矫正拟合度分别达到了0.837 1和0.947 9,为Y油田后续乳状液驱提高采收率提供理论基础。

    The properties of an emulsion are affected by several factors including emulsifier type, emulsifier concentration, water content (oil-water volume ratio) and stirring speed (shear rate). In this work, the effects of stirring speed, water content and their combined action on the droplet size and stability of the emulsion were investigated by using the water separation percent and the Sauter mean diameter of the emulsion as the evaluation indexes. The results showed that, for the YMX-1 emulsion system of a water content of 50% at 50 ℃, when the stirring speed was increased from 7 000 r/min to 15 000 r/min, the Sauter mean diameter would decrease from 18.83 μm to 14.54 μm, and the water separation percent decreased from 72.00% to 50.80%. It suggested that with the increase of stirring speed, the droplet size of emulsion decreased and the stability increased. In the case of a stirring speed at 7 000 r/min, when the water content was increased from 40% to 70%, the Sauter mean diameter would increase from 17.11 μm to 27.65 μm, and the water separation percent increased from 58.50% to 86.29%. It suggested that with the increase of water content, the droplet size of the emulsion increased and the stability decreased. The results of variance analysis and regression analysis showed that, the water content had greater influence on the droplet size and stability of the emulsion than the stirring speed did. The prediction equations of Sauter mean diameter (D) and stability score (VF) for water content (X) and stirring speed (Y) were obtained: D = 16.55+2.85X-2.94Y -1.5XY+1.35X2+1.73Y2 and VF = 9.0-3.54X+1.55Y, and the fitting degree reached 0.837 1 and 0.947 9, respectively, which could provide a theoretical basis for subsequent emulsion flooding to improve oil recovery in Y oilfield.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    基于KNN算法建立晒后皮肤状态评估模型
    Modeling of post-sunburn skin condition assessment based on KNN algorithm
    李以洪, 许梦然, 盘瑶, 吴金昊, 刘琦, 常思思, 赵华
    2025 (3):  349-357.  doi: 10.3969/j.issn.2097-2806.2025.03.011
    摘要 ( 50 )   HTML ( 2 )   PDF(1895KB) ( 19 )  

    探索不同剂量紫外线照射后皮肤指标变化趋势,建立晒后皮肤状态评估模型。首先,筛选出变化有规律且具灵敏性的指标,优化黑化模型进一步扩大样本库,利用临床专家对晒后皮肤状态的分级作为学习标准,基于K邻近分类算法(KNN)对指标数据进行训练识别,建立晒后皮肤状态分级评估模型,经10折交叉验证后超参数K=3时,模型的mmce均值为0.015,预测精度acc均值为0.985,预测的准确度高达98.5%。结果表明,该模型能够将晒后皮肤状态的主观评级客观量化,高效率、高精度识别晒后皮肤状态。研究结果可为晒后皮肤状态评估和晒后修护功效评价体系提供技术支持。

    This study established a model for assessing post-sunburn skin condition by exploring the trends of skin indexes after different doses of UV irradiation. First, we screened out the indicators with regular and sensitive changes, optimized the tanning model to further expand the sample library, used the clinical experts’ grading of post-tanning skin status as the learning standard, and trained the identification of the indicator data based on the K Neighborhood Classification Algorithm (KNN) to establish the post-tanning skin status grading assessment model. After 10-fold cross validation, when the hyperparameter K=3, the mmce mean value of the model is 0.015, and the mean value of the prediction accuracy acc is 0.985, with a prediction accuracy of 98.5%. The results show that the model is able to objectively quantify the subjective ratings of post-tanning skin condition and recognize post-tanning skin condition with high efficiency and accuracy. The results can provide technical support for the assessment of post-sunburn skin condition and the evaluation system of post-sunburn repair efficacy.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    专论与综述
    磁性荧光纳米粒子的制备及应用研究进展
    Progress in the preparation and application of magnetic fluorescent nanoparticles
    杨子涵, 刘鑫, 李欣儒, 李苗
    2025 (3):  358-366.  doi: 10.3969/j.issn.2097-2806.2025.03.012
    摘要 ( 48 )   HTML ( 2 )   PDF(1617KB) ( 18 )  

    随着科技的发展,性能单一的纳米粒子已经不能满足人类的需求,研发多功能纳米粒子对社会的发展有着重大意义。目前研发出的双功能磁性荧光纳米颗粒融合了磁性与荧光性能,能够在实现荧光标记的同时通过外加磁场进行操控,满足高灵敏度及多选择性的任务需求。因此,磁性荧光双功能纳米粒子在生物医学、环境保护、新能源等领域有着广阔的应用前景。文章介绍了封装法、偶联法、高温裂解法等制备方法,并讨论了它们的优点和局限性;此外,根据结构的不同,将磁性荧光纳米粒子分为三类;总结了磁性荧光纳米粒子在纳米药物载体、生物的检测与分离、生物成像、食品安全检测、指纹检测等方面的最新研究进展;最后对双功能磁性荧光纳米粒子的合成、应用等方面进行了展望。

    With the development of science and technology, nanoparticles with a single performance can no longer meet the needs of human beings. The research and development of multifunctional nanoparticles are of great significance to the development of society. Bifunctional magnetic fluorescent nanoparticles have been developed to combine magnetic and fluorescent properties and can be manipulated by an external magnetic field while realizing fluorescence labeling, which meets the needs of high sensitivity and multi-selectivity. Therefore, magnetic fluorescent bifunctional nanoparticles have broad application prospects in biomedicine, environmental protection, new energy, and other fields. In this paper, the encapsulation method, coupling method, pyrolysis method, and other preparation methods are introduced, and their advantages and limitations are discussed. In addition, magnetic fluorescent nanoparticles are classified into three types according to their structures. The latest research progress of magnetic fluorescent nanoparticles in nano-drug delivery, biological detection and separation, biological imaging, food safety detection, and fingerprint detection are summarized. Finally, the synthesis and application of bifunctional magnetic fluorescent nanoparticles are prospected.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    国内外合成生物学化妆品原料的研究进展与监管
    The research progress and regulation of cosmetic ingredients produced by synthetic biology at home and abroad
    蓝云萍, 谢志洁, 赵楚杰, 刘晓纯, 王诗琼, 何秋星
    2025 (3):  367-380.  doi: 10.3969/j.issn.2097-2806.2025.03.013
    摘要 ( 94 )   HTML ( 13 )   PDF(1257KB) ( 34 )  

    利用合成生物学技术开发的化妆品原料,由于其既有效、安全又兼具环保性,正引起社会广泛关注。本文阐述了合成生物学的概念及其在化妆品原料生产中的主要技术和现状,并简要分析了不同国家和地区对合成生物学化妆品原料的监管情况,为我国相关领域管理提供指导,以保障产品安全,提升消费者认可,推动行业良性发展。

    The use of synthetic biology technology to develop cosmetic ingredients is attracting widespread attention due to its effectiveness, safety, and environmental friendliness. This article explains the concept of synthetic biology and its key technologies and current status in the production of cosmetic ingredients. It also briefly analyzes the regulatory approaches to synthetic biology-based cosmetic ingredients in different countries and regions, providing guidance for the management of this field in China. The goal is to ensure product safety, enhance consumer trust, and promote the healthy development of the industry.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    低碳理念视角下产品包装设计探析——以日用洗护用品为例
    Analysis of product packaging design from the perspective of low carbon concept: Taking daily toiletries as an example
    赵念念, 李爱真
    2025 (3):  381-389.  doi: 10.3969/j.issn.2097-2806.2025.03.014
    摘要 ( 74 )   HTML ( 5 )   PDF(2206KB) ( 19 )  

    随着全球环境问题的日益严峻,低碳理念已逐渐成为社会发展的核心原则。日用洗护用品的包装设计也需顺应时代潮流,朝着更加环保、低碳的方向发展。本文以日用洗护用品为研究对象,采用案例分析法对低碳理念视角下的产品包装设计进行探析。首先,分析了国内外日用洗护用品包装设计的发展现状,指出存在过度包装、使用难以降解的材料等问题。然后,基于对低碳理念的理论基础及其与日用洗护用品包装设计关联性的探讨,总结了低碳理念视角下日用洗护用品包装设计的原则。最后,提出了低碳理念视角下日用洗护用品包装设计策略,包括选择和应用环保材料、优化与创新包装结构、探索绿色印刷与装饰技术等。以期通过低碳理念在产品包装设计中的应用,推动包装设计行业向着更加绿色、可持续的方向发展。

    With the increasingly severe global environmental problems, low-carbon concepts have gradually become the core principle of social development. The packaging design of daily care products also needs to follow the trend of the times and develop towards a more environmentally friendly and low-carbon direction. This article takes daily toiletries as the research object and uses case analysis method to explore product packaging design from the perspective of low-carbon concept. Firstly, the development status of packaging design for daily care products at home and abroad is analyzed, and problems such as excessive packaging and the use of materials that are difficult to degrade are pointed out. Then, based on the theoretical foundation of the low-carbon concept and its correlation with the packaging design of daily care products, the principles of packaging design for daily care products under the low-carbon concept are summarized. Finally, a packaging design strategy for daily toiletries from the perspective of low-carbon concept is proposed, including selecting and applying environmentally friendly materials, optimizing and innovating packaging structures, and exploring green printing and decoration technologies. It aims to promote the development of the packaging design industry towards a more green and sustainable direction through the application of low-carbon concepts in product packaging design.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    皮肤微生态与微生态护肤品
    Skin microecology and microecological skincare products
    赵化冰, 李颖甜, 王熙函, 黄正梅, 路福平
    2025 (3):  390-398.  doi: 10.3969/j.issn.2097-2806.2025.03.015
    摘要 ( 90 )   HTML ( 15 )   PDF(1358KB) ( 78 )  

    皮肤微生物组及其生存环境共同构成了皮肤微生态系统,发挥着重要的屏障作用。微生物组是皮肤微生态系统的核心,其通过介导物理屏障、化学屏障以及免疫屏障的相互作用,维持着皮肤稳态。日常使用护肤品已成为现代人的生活习惯,其对皮肤微生态的影响不容忽视。为此,本文综述了护肤品中可能影响皮肤微生态的各类因素,从共性影响、有害影响、有益影响、不确定性影响几个角度进行了系统分析。在此基础上,讨论了微生态护肤品的研发方向。

    The skin microecosystem is comprised of the components including: the microbiome, encompassing bacteria, fungi, archaea, viruses, protozoa, and other microorganisms; host cells, including epithelial cells, immune cells, and various glands; chemical constituents, such as sebum, sweat, skin care products, environmental molecules, and their metabolic products; and the physical microenvironment, which includes factors such as oxygen, ultraviolet light, and temperature. The microbiome serves as the central component of the skin microecosystem, playing a crucial role in the maintenance of skin homeostasis through its mediation of the interactions among the physical barrier, chemical barrier, and immune barrier. Understanding the skin microecosystem, and how to maintain its delicate balance is an essential way to gain insight into the mechanisms responsible for healthy skin. The daily use of skin care products has become a modern living habit, and its impacts on skin microecosystem cannot be ignored. Therefore, this article aims to summarize the various factors that may affect the skin microecosystem in skin care products, and systematically analyze the common effects, harmful effects, beneficial effects and uncertainty effects. Based on this premise, the following development directions are proposed: further elucidation of the skin microecology mechanism with multi-omics technology, the creation of in vitro skin microecology models, the establishment of evaluation systems and regulations for assessing the effects of skincare products on skin microecology, and the exploration of beneficial skin bacteria and substitutes for potentially harmful ingredients.

    数据和表 | 参考文献 | 相关文章 | 计量指标
    分析与检测
    UHPLC-MS/MS法检测化妆品中21种非甾体抗炎药
    Determination of 21 nonsteroidal anti-inflammatory drugs in cosmetics by high performance liquid chromatography-tandem mass spectrometry
    冯克然, 吴晓鸣, 马亮波, 孙宇
    2025 (3):  399-406.  doi: 10.3969/j.issn.2097-2806.2025.03.016
    摘要 ( 52 )   HTML ( 3 )   PDF(1198KB) ( 26 )  
    建立了同时检测化妆品中21种非甾体抗炎药的UHPLC-MS/MS方法。选用膏霜、面膜、凝胶、液体水基类样品为化妆品代表性基质,样品采用甲醇或0.3% (V/V)甲酸-甲醇进行超声辅助液液萃取。使用ACQUITY UPLC BEH C18 (1.7 μm,2.1 mm×150 mm)色谱柱进行分离,分别以0.1% (V/V)甲酸-水和乙腈作为水相和有机相进行梯度洗脱,在多反应监测模式下进行检测。对样品前处理条件和色谱、质谱条件进行了系统性考察。结果表明,20种化合物的线性范围为5~50 μg/L,罗非昔布线性范围为10~100 μg/L,均线性相关系数良好(r>0.99)。低、中、高三个浓度水平的加标回收率范围为72.1%~117.3% (n=6),相对标准偏差RSD范围为0.6%~9.7%。该方法操作简便、准确性高、灵敏度好,适用于化妆品中非甾体抗炎药的检测,能够为化妆品中行为的监管提供技术支撑。

    A method was developed for the determination of 21 nonsteroidal anti-inflammatory drugs (NSAIDs) in cosmetics by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Four kinds of cosmetics such as cream, facial mask, gel and toner were selected as representative matrix. The sample pretreatment conditions, chromatography and mass spectrometry conditions were systematically investigated. At first, the cosmetic samples were extracted by methanol for cream, gel, toner matrix, and methanol containing 0.3% (V/V) formic acid for facial mask matrix by ultrasonic-assisted liquid-liquid extraction. Then they were separated on an ACQUITY UPLC BEH C18 column (1.7 μm, 2.1 mm×150 mm) by gradient elution. Aqueous containing 0.1% (V/V) formic acid and acetonitrile were used as mobile phases. The flow rate was 0.3 mL/min and injection volume was 5 μL. Finally, samples were detected with multiple reaction monitoring (MRM) scanning mode. The results show a good linearity in the concentration range of 10-100 μg/L for rofecoxib and 5-50 μg/L for other NSAIDs. The spiked recoveries at the low, medium, and high levels range from 72.1% to 117.3%, with the RSD ranging from 0.6% to 9.7% (n=6). This method has the characteristics of simple operation, high accuracy, and good sensitivity. It is suitable for the detection of NSAIDs in cosmetics, and provides a technical support for the supervision in cosmetics.

    数据和表 | 参考文献 | 相关文章 | 计量指标