界面聚合法制备聚脲蜂蜡相变微胶囊

doi:10.3969/j.issn.1001-1803.2019.12.008

Abstract

Abstract:

Polyurea microcapsules containing beeswax as the core material were prepared by interfacial polymerization. Toluene diisocyanate （TDI） and ethylene diamine （EDA） were used as monomers and octylphenol polyoxyethylene （10） ether （OP-10） was used as emulsifier. The effects of emulsifier dosage, molar ratio of monomers and reaction temperature on polyurea/beeswax phase change microcapsules were studied. The effectiveness of microencapsulation was also analyzed. The results showed that when the emulsifier mass fraction is 2.40%, n（TDI）∶n（EDA） is 1.2∶1.0 and the reaction temperature is 70 ℃, the average particle size of polyurea/beeswax microcapsules prepared under such condition is 70.3 μm, while the heat-resistance temperature, phase change temperature and latent heat of phase change are 210 ℃, 41 ℃, and 59.55 J/g, respectively.

Key words: beeswax, polyurea, phase change microcapsule, interfacial polymerization

CLC Number:

TB33

NI Zhuo,CHEN Shu-tian,ZHU Jin-pu. Microencapsulation of beeswax as a phase change material in polyurea by interfacial polymerization[J].China Surfactant Detergent & Cosmetics, 2019, 49(12): 811-816.

Figures/Tables 9

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References 12

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实验编号	产品质量/g	囊壁质量/g	w/%
1	50.80	14.00	72.44
2	49.80	13.60	72.69
3	50.20	14.20	71.71

Microencapsulation of beeswax as a phase change material in polyurea by interfacial polymerization

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