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Table of Content

    22 June 2016, Volume 46 Issue 6 Previous Issue    Next Issue
    Basicresearc
    Behavior of blend of GSS362/TX-100 in aqueous solution
    YU Hong-mei, LIU Jun-feng, HUA Ping, LI Jian-hua, ZHU Cheng-long, WANG Ling-guang
    2016, 46 (6):  305-308.  doi: 10.13218/j.cnki.csdc.2016.06.001
    Abstract ( 350 )   PDF (816KB) ( 405 )  
    The surface properties and micellization behavior of blend of 1,3-propanediol Gemini sodium bis-isooctyl succinyl ester sulfonate (GSS362) and octylphenol ethoxylate (TX-100) in aqueous solution were investigated.The cmc of ideal mixed surfactants and the composition as well as the interaction parameters and thermodynamic parameters of separate components in the surface adsorption layer as well as in the micelles were also examined and calculated.Results showed that:no synergistic effect of the blend surfactants is found in the aqueous solution;however,with the addition of TX-100,the cmc of the blend surfactants decreases apparently as comparing to that of GSS362 alone;the formation of mixed micelle is spontaneous and the molecular interaction between GSS362 and TX-100 is weak;TX-100 is enriched in the micelles of the blend surfactants.
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    Lectureofscienceandtechnolog
    Fluorinated surfactants and fluoropolymers (Ⅵ) Synthesis of fluorinated surfactants with weak point
    XING Hang, CHEN Xian-tao, XIAO Jin-xin
    2016, 46 (6):  309-313.  doi: 10.13218/j.cnki.csdc.2016.06.002
    Abstract ( 314 )   PDF (870KB) ( 380 )  
    Recent strategies for synthesis of fluorosurfactants that may be potentially non-bioaccumulable were reviewed.These routes are devoted on:(ⅰ) preparation of CF3-X-(CH2)n-SO3Na [with X=O,C6H4O or N(CF3) and n=8-12];(ⅱ) synthesis of fluorinated polyethers either by oligomerization of hexafluoropropylene oxide (HFPO) or by ring opening cationic oligomerization of fluorinated trimethylene oxide;(ⅲ) telomerization of vinylidene fluoride (VDF) with 1-iodoperfluoroalkanes to produce CnF2n+1-(VDF)2-CH2COOR (n=2 or 4,R=H or NH4);(ⅳ) free radical telomerization of 3,3,3-trifluoro-propene (TFP) and 1-iodoperfluoroalkanes to prepare corresponding surfactants;(ⅴ) free radical co-telomerization of VDF and TFP in presence of 1-iodoperfluoroalkanes,or their controlled free radical co-polymerization in presence of fluorinated xanthate.The degradability and safety of these fluorinated ethers with weak point and their problems for being used as replacing products for PFOS and PFOA were summarized.
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    Developmentandapplicatio
    Optimization of synthesis of imidazoline sulfate salt by response surface method and study of its performance
    GUO Rui,CHENG Min,YANG Jiang-yue,LI Huan-le,LIU Ai-yu
    2016, 46 (6):  314-319.  doi: 10.13218/j.cnki.csdc.2016.06.003
    Abstract ( 256 )   PDF (2453KB) ( 345 )  
    Under the catalysis of urea,a kind of imidazoline sulfate salt was synthesized with amino sulfonic acid as the sulfating reagent,lauric acid and N-hydroxyethyl-ethylenediamine as starting materials.The chemical structure of the target product was characterized by IR and 1H NMR.Based upon results obtained from single factor experiments and in combination with response surface method,the optimal synthesis conditions were determined as:n(imidazoline)∶n(amino sulfonic acid)=1∶1.09;reaction temperature,107 ℃;reaction time,3.7 h;dosage of the catalyst,2.93% of the total mass of the reactants.Under the above-mentioned conditions,the reaction yield achieves 75.20%.Surface activity and foaming performance of the product were measured.The results showed that imidazoline sulfate salt displays good surface activity and foaming performance.
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    Synthesis and performance of decyl polyglycoside sulfonate for foam blended flooding agent
    ZOU Xin-yuan,LUO Wen-li,MA De-sheng,ZHOU Xin-yu,TIAN Mao-zhang
    2016, 46 (6):  320-323.  doi: 10.13218/j.cnki.csdc.2016.06.004
    Abstract ( 246 )   PDF (852KB) ( 347 )  
    Decyl polyglycoside sulfonate (C10APGS) was prepared with decyl polyglycoside (C10APG) and sodium 3-chloro-2-hydroxypropanesulfonate as starting materials.Chemical structure of the product was characterized by FT-IR and ESI-MS,and the foam performance,adsorption capacity of the product were also investigated.Results showed that the foaming power and foam stability of C10APGS are very well,and the foaming power and the draining half-life period increase with the increase of C10APGS mass fraction,while as C10APGS mass fraction exceeds 0.4% the trend of the increment of the foaming power becomes slower.As the mass fraction of the divalent salts increases,the foaming power changes insignificantly,while the foam stability drops significantly.Even in case that the mass fraction of the divalent salts achieves up to 8%,C10APGS still displays good salt tolerance.The adsorption loss of C10APGS reduces by 14.4% as comparing with that of C10APG and can be used as a rather satisfiable component in foam blended flooding agent for application in high salinity crude oil mines.
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    Performance of blend systems based on alkyl hydroxypropyl polyglucoside sulfonates and imidazoline
    DONG Qing-wen,ZHANG Wei,FAN Wei,WANG Feng-shou,DONG Wan-tian
    2016, 46 (6):  324-327.  doi: 10.13218/j.cnki.csdc.2016.06.005
    Abstract ( 289 )   PDF (800KB) ( 376 )  
    Performance of blend systems composed of anionic surfactant alkyl hydroxypropyl polyglucoside sulfonates (APGHPS) and amphoteric surfactant imidazoline (IMD) such as stability,surface activity,foam performance,wetting power,and hard water endurance were investigated.It was found that the blend system of APGHPS and IMD has a good compatibility and a strong synergic effect.When the molar ratio between APGHPS and IMD is 1∶1,the blend system shows the strongest synergic effect.The minimum value of critical micelle concentration (cmc) and the surface tension at cmc (γcmc) of the blend system is 8.81×10-5 mol/L and 26.2 mN/m respectively,which is much lower than that of each single component in the blend system.The foam performance,wetting power and hard water endurance are also better than that of each single component in the blend system.
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    CO2/N2-switchable microemulsion as well as its oil dirt washing and separation performance
    HUANG Man,LI Can-qi,LIU Xue-feng
    2016, 46 (6):  328-333.  doi: 10.13218/j.cnki.csdc.2016.06.006
    Abstract ( 217 )   PDF (3486KB) ( 324 )  
    To obtain an O/W microemulsion,blend of sodium dodecyl benzene sulfonate and N,N-dimethyl-N-dodecyl tert-amine with equimolar ratio was used as main emulsifier,butanol as co-emulsifier and n-heptane as oil phase.The reversible conversion of microemulsion-phase separated liquid-microemulsion can be realized by alternate action of CO2 and N2.The radii of the original and recovered microemulsion are (10.89±0.21) and (11.50±0.47) nm respectively.The oil removal rate for mineral oil on porous solid,textiles and industrial crude oil sand are 99.13%±0.32%,98.30%±0.28% and 54.52%±0.25% respectively.On an equal mass fraction basis,the removal rate of soil made by mark pen of the diluted microemulsion to that of laundry powder from market achieves 1.90 while that of the microemulsion without dilution achieves 2.02.The phase separation of oil containing waste liquid could be quickly and completely realized by bubbling of CO2.After separating the oil phase,the water phase left was treated with anion and cation exchange resins and activated carbon.The values of chemical oxygen demand (COD) and total organic carbon (TOC) of the waste water drop to 40.62 and 17.51 mg/L respectively,which are in conformity with the first class standard of discharged water (COD≤100 mg/L,TOC≤20 mg/L) according to GB 18918-2002.
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    Study with respect to effect of sodium dodecyl sulfate on gene expression of keratinocytes and its signaling pathway
    ZHAO Dan,SU Ning,ZHANG Jia-chan,LI Meng,HUO Tong,WANG Chang-tao
    2016, 46 (6):  334-338.  doi: 10.13218/j.cnki.csdc.2016.06.007    
    Abstract ( 169 )   PDF (1370KB) ( 261 )  
    Detection of total RNA of keratinocytes after irritation of sodium dodecyl sulfate (SDS) was conducted utilizing human mRNA micro array to study the effect of SDS on gene expression of keratinocytes and its signaling pathway,as well as to predict the possibility of inducing disease by the SDS.Results showed that expression of 605 genes are significantly up regulated and 368 genes are significantly down regulated after exposing to SDS.The signals are transformed mainly by TNF signaling pathway.Ten critical genes (IL-6,TNF,CCL5,CCL20,CXCL8,CXCL3,CSF2,CSF1,TNFAIP3 and NLRC4) are screened by the pathways.Abnormal expression of these genes will affect the development of inflammation and activation of immunity.Possibly,irritation of SDS may cause atopic dermatitis as well as promotion of allergies and autoimmune disease.
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    Study of anti-irritation effect of hyaluronic acid using 3D skin model
    YU Huan,CHEN Yu,CHENG Shu-jun,QIN Yao
    2016, 46 (6):  339-343.  doi: 10.13218/j.cnki.csdc.2016.06.008
    Abstract ( 263 )   PDF (3346KB) ( 326 )  
    Sodium dodecyl sulfate (SDS) mixed with hyaluronic acid (HA) of separate molecular weight were applied on HaCaT cells and 3D skin model separately.After action of 24 h,the cell viability was detected by MTT assay and the level of IL-1α by ELISA method.The difference of exogenous effect of HA to reduce irritation induced by SDS on cell viability and IL-1α releasing between the two in vitro test models was studied.In conclusion,3D skin model can be used to test the anti-irritation effect of HA in vitro.Meanwhile,the exposure and testing results of 3D skin model are more close to human situation and can provide further mechanism information as comparing with the monolayer cell.
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    Synthesis of 3,4-dihydropyrimidine-2(1H)-one derivatives via Biginelli reaction with H4GeW12O40/Cu3(BTC)2 as catalyst
    GONG Wen-peng,MA Hai-qin,ZHOU Zhou,YANG Shui-jin
    2016, 46 (6):  344-348.  doi: 10.13218/j.cnki.csdc.2016.06.009
    Abstract ( 194 )   PDF (1890KB) ( 502 )  
    Six kinds of 3,4-dihydropyrimidine-2(1H)-one derivative were prepared via Biginelli-type condensation by one-pot method with ethyl acetoacetate,aromatic aldehyde and urea as starting materials,anhydrous ethanol as solvent and H4GeW12O40/Cu3(BTC)2 as catalyst.The catalyst was prepared by loading of germanic-tungstic acid on metal organic skeleton by impregnation method.Structures of the target compounds were characterized by melting point determination,1H NMR,IR,and MS.The experimental results showed that,under the conditions of fixed aromatic aldehyde feed of 0.04 mol;n(aromatic aldehyde)∶n(ethyl acetoacetate)∶n(urea)=1∶1.5∶1.5;the dosage of catalyst at 4.0% of total mass of the starting materials;reaction temperature at 90 ℃;and reaction time of 90 min;the yield of the target products achieves 63.0%-76.3%.
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    Test for antioxidation and whitening activity of ethanol extract from four kinds of Chinese herbal medicine in vitro
    HUANG Li-sen,PANG Hai-yue,WU Hong-tan,YE Zi-jian,WANG Peng,WANG Gui-hong
    2016, 46 (6):  349-352.  doi: 10.13218/j.cnki.csdc.2016.06.010
    Abstract ( 282 )   PDF (687KB) ( 396 )  
    Extracts,with ethanol as solvent,from 4 kinds of Chinese herbal medicine (dried aloe leaves,Angelica dahurica,Huaiqing yam and Radix scutellariae) were assessed for their antioxidation activity by free radical scavenging activity detection method and total antioxidation activity detection method.Meanwhile,their human skin whitening activity was assessed by tyrosinase inhibition test,B16 melanoma cells proliferation inhibition test and melanin formation inhibition test.The results showed that although the aforesaid four kinds of Chinese herbal medicine extract display certain antioxidation and free radical scavenging activity as well as tyrosinase inhibition activity,B16 melanoma cells proliferation inhibition and melanin formation inhibition capacity;however,as comparing with BHT (2,6-di-tert-butyl-4-methylphenol) that containing in conventional skin care cosmetic products from the market,their antioxidation and whitening effect are lower.So it is necessary to separate and purify the ethanol extracts for enriching the active ingredients,as well as to improve their antioxidation and whitening activity.
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    Review
    Progress of catalytic α-pinene epoxidation
    WANG Zhong-tian,YU Feng-li,YUAN Bing,XIE Cong-xia,YU Shi-tao
    2016, 46 (6):  353-358.  doi: 10.13218/j.cnki.csdc.2016.06.011
    Abstract ( 334 )   PDF (771KB) ( 426 )  
    In view of different oxidants,the advances of the catalytic epoxidation of α-pinene in recent years were summarized.The advantages and disadvantages of various oxidants such as acetic acid peroxide,hydrocarbonyl hydrogen peroxide,nonmetallic oxygen acid salt,H2O2 and O2 respectively as an oxidizing agent in the α-pinene epoxidation were listed.The epoxidation of α-pinene conducted by environmentally friendly oxidant H2O2 and O2 was emphatically introduced.
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    Analyticalmethodsandtestin
    Simultaneous determination of 33 kinds of banned and/or restricted component in hair dyes by high performance liquid chromatography-mass spectrometry
    CHEN Meng,HU Lei,XU Li,ZHOU Ming-hao
    2016, 46 (6):  359-364.  doi: 10.13218/j.cnki.csdc.2016.06.012
    Abstract ( 223 )   PDF (748KB) ( 344 )  
    A high performance liquid chromatography-mass spectrometry (HPLC-MS/MS) method was established for simultaneous determination of 33 kinds of banned and/or restricted component in hair dyes.After extracted by mixed solution with methanol and 2 g/L ascorbic acid aqueous solution,purified by n-hexane,the samples were analyzed by HPLC-MS/MS.The separation was performed on an Agilent ZORBAX Extend C18 column (2.1 mm×100 mm,1.8 μm) and gradient eluted with aqueous solution of 5 mmol/L ammonium acetate and acetonitrile.The electro spray ionization source in positive and negative ion mode was used for qualitative and quantitative analysis of the 33 components under the multiple reaction monitoring mode (MRM).The results show good linear relationships with all correlation coefficients higher than 0.99.The limits of detection for the 33 components are in the range of0.01-29.5 mg/kg.The average spiked recoveries of the 33 components are in the range of 71%-115%.
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