人造板用耐搅拌乳化蜡的研制

doi:10.3969/j.issn.1001-1803.2021.01.006

摘要/Abstract

摘要：

采用58#半精炼蜡为原料,单硬脂酸甘油酯、平平加O-20、PEG-100硬脂酸酯三者复配做主要乳化剂,制备出耐搅拌的乳化蜡。结果表明,在复合乳化剂的HLB值为10.8,乳化剂用量为石蜡量的15%,乳化温度为80 ℃,乳化30 min时,制备的乳化蜡黏度为14.7 s（涂-4杯黏度法）,粒径小于50 nm,Zeta电位为180 mV,固含量为43.7%。流变性能表征结果表明该乳液为假塑性流体。该乳液于1 500 r/min搅拌4 h后,黏度为12.4 s,黏度没有变大,固含量为41.2%,静置稳定性和离心稳定性好,不分层,分散性为一级,具有良好流动性的时间不低于7 d。

关键词: 乳化蜡, 单硬脂酸甘油酯, 流变性能, 粒径, Zeta电位

Abstract:

A type of agitation-resistant emulsified wax was prepared where the 58# semi-refined wax was used as raw material and the mixture of glycerin monostearate, peregal O-20 and PEG-100 stearate was used as the main emulsifier. The results showed that the optimized conditions for preparing the paraffin emulsion were as follows: The HLB value of the composite emulsifier was 10.8; the amount of the emulsifier was 15% of paraffin wax; the emulsifying temperature was 80 ℃; the emulsifying time was 30 min. The viscosity of the emulsified wax thus obtained was 14.7 s （No.4 viscosity flow cup）; the particle size was less than 50 nm; Zeta potential was 180 mV; the solid content was 43.7%. Rheological properties showed that the emulsion was pseudoplastic fluid. When the emulsion was stirred at 1 500 r/min for 4 h, the emulsion exhibited a viscosity of 12.4 s （i.e., the viscosity was not increased）, a solid content of 41.2%, good static and centrifugal stabilities, no phase separation, and a dispersibility of grade one, and its good fluidity was maintained not less than 7 days.

Key words: emulsified wax, glyceryl monostearate, rheological property, particle size, Zeta potential

中图分类号:

TE626.8+8

张艳维,柴广庆,王艳飞,杨立国,郑永军. 人造板用耐搅拌乳化蜡的研制[J]. 日用化学工业, 2021, 51(1): 32-37.

ZHANG Yan-wei,CHAI Guang-qing,WANG Yan-fei,YANG Li-guo,ZHENG Yong-jun. Preparation of emulsified wax resistant to agitation for wood-based panels[J]. China Surfactant Detergent & Cosmetics, 2021, 51(1): 32-37.

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参考文献 18

[1]	Li Jing, Jiao Weizhou, Liu Youzhi, et al. Progress in preparation and application of emulsified paraffin wax[J]. China Surfactant Detergent & Cosmetics, 2012,42(6) : 446-451.
[2]	Wang Wang, Ran Yangyang, Wang Jiamin. Improved performance of thermally modified wood via impregnation with carnauba wax/organoclay emulsion[J]. Construction and Building Materials, 2020,247: 118586.
[3]	Chen Jinyu, Wang Yujiao, Cao Jinzhen, et al. Improved water repellency and dimensional stability of wood via impregnation with an epoxidized linseed oil and carnauba wax complex emulsion[J]. Forests, DOI: 10.3390/f11030271. doi: 10.3390/f8080301 pmid: 33442463
[4]	Li C, Mei Z, Liu Q, et al. Formation and properties of paraffin wax submicron emulsions prepared by the emulsion inversion point method[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2010,356(356) : 71-77. doi: 10.1016/j.colsurfa.2009.12.036
[5]	Torovazquez J F, Mauricioperez R, Gonzalezchavez M M, et al. Physical properties of organogels and water in oil emulsions structured by mixtures of candelilla wax and monoglycerides[J]. Food Research International, 2013,54(2) : 1360-1368.
[6]	Jadhav A J, Holkar C R, Karekar S E, et al. Ultrasound assisted manufacturing of paraffin wax nanoemulsions: Process optimization[J]. Ultrasonics Sonochemistry, 2015: 201-207. pmid: 11062876
[7]	Zhang Linjun, Tian Ruhui, Huang Wei. Preparation of wax emulsion and its application in the manufacture of medium/high density fiberboard[J]. China Wood-based Panels, 2007 (11) : 24-25.
[8]	Dong Ying, Wang Yujiao, Wang Wang, et al. Preparation and properties of emulsified water repellent made from paraffin wax and silane for wood modification[J]. China Wood Industry, 2018,32(4) : 18-21.
[9]	Xu Xiaobin, Li Haiyan, Xu Jinshan, et al. Emulsified paraffin for wood processing and preparation method thereof: CN 104558634 A[P]. 2015-04-29.
[10]	Xiong Xiaoli, Li Ning. Optimization of process technique in paraffin emulsification by colligation score[J]. Applied Chemical Industry, 2018,47(6) : 1088-1090, 1096.
[11]	Zhu Shenggan, Zhu Chunyan, Zheng Dianmo. Process for preparing nonionic wax emulsion[J]. Chemical Intermediates, 2010,6(4) : 55-59.
[12]	Mao Yuan, Ge Jijiang, Tang Cunzhi, et al. Preparation of wax emulsion[J]. Journal of Chongqing University of Science and Technology (Natural Science Edition), 2015,17(4) : 94-96.
[13]	Vilasau J, Solans C, Gomez M J, et al. Stability of oil-in-water paraffin emulsions prepared in a mixed ionic/nonionic surfactant system[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011,389(1) : 222-229.
[14]	Chang L, Pope G A, Jang S, et al. Prediction of microemulsion phase behavior from surfactant and co-solvent structures[J]. Fuel, 2019: 494-514.
[15]	Zhang Kunling, Li Ruizhen, Lu Yumei, et al. Selection of emulphor according to HLB[J]. Journal of Shijiazhuang Vocational and Technical College, 2004 (6) : 20-22.
[16]	Frederik Lipfert, Michael Kerscher, Stefan Mattauch, et al. Stability of near-surface ordering of bicontinuous microemulsions in external shear-fifields[J]. Journal of Colloid and Interface Science, 2019,534: 31-36. doi: 10.1016/j.jcis.2018.09.014 pmid: 30205252
[17]	Park S, Jin F, Lee J, et al. Synjournal and thermal properties of epoxidized vegetable oil[J]. Macromolecular Rapid Communications, 2004,25(6) : 724-727.
[18]	Panov D, Terziev N, Daniel G. Using plant oils as hydrophobic substances for wood protection[C] // The International Research Group on Wood Protection. In Proceedings of the International Research Group on Wood Protection for the 41th Annual Meeting. Sweden: The International Research Group on Wood Protection, 2010: 5.

序号	HLB值	组分	各组分质量相对比例	黏度/s	固含量/%	离心稳定性	分散性
1	9.0	单硬脂酸甘油酯	8.28	几乎没有流动性	40.2	分层	三级
		平平加O-20	5
		PEG-100	1
2	9.2	单硬脂酸甘油酯	5.27	几乎没有流动性	40.1	分层	三级
		平平加O-20	2.82
		PEG-100	1
3	9.8	单硬脂酸甘油酯	3.44	几乎没有流动性	39.8	不分层	三级
		平平加O-20	1.81
		PEG-100	1
4	10.0	单硬脂酸甘油酯	3.31	20.1	42.2	分层	三级
		平平加O-20	1.94
		PEG-100	1
5	10.35	单硬脂酸甘油酯	2.83	19.2	42.6	分层	二级
		平平加O-20	1.72
		PEG-100	1
6	10.5	单硬脂酸甘油酯	5.75	23.5	43.1	不分层	一级
		平平加O-20	5.75
		PEG-100	1
7	10.8	单硬脂酸甘油酯	8.4	14.7	43.7	不分层	一级
		平平加O-20	10.6
		PEG-100	1
8	10.9	单硬脂酸甘油酯	8.2	13.4	43.7	分层	二级
		平平加O-20	10.8
		PEG-100	1
9	11.4	单硬脂酸甘油酯	3.33	15.2	43.5	分层	二级
		平平加O-20	4
		PEG-100	1
10	12.0	单硬脂酸甘油酯	1.81	几乎没有流动性	41.7	不分层	四级
		平平加O-20	1.95
		PEG-100	1