基于非离子复合乳化剂自修复微胶囊的制备
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火箭军工程大学,火箭军工程大学,火箭军工程大学,火箭军工程大学,火箭军工程大学

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TQ630.4

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Synthesis Process of Self-Healing Microcapsule Based on Nonionic Composition Emulsifiers
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    摘要:

    提出采用低起泡性的OP-10/AEO非离子复合乳化体系解决微胶囊制备过程中乳化缺陷问题,以改性环氧树脂E-51为芯材修复剂,通过原位聚合法制备脲醛树脂自修复微胶囊。采用光学显微镜、傅里叶红外光谱仪、同步热分析仪分别对形成过程、化学结构及热稳定性进行分析,利用Gauss拟合研究粒径分布,并探讨了乳化剂体系选择、乳化剂用量、芯壁比、搅拌速率等因素对微胶囊性能的影响。结果表明,该体系能有效改善乳化剂起泡效果,用量为5.0%,芯壁比为0.8:1,搅拌速率为1200 r/min,微胶囊包封率达到80%,粒径分布相对集中,具备良好的室温贮存性及热稳定性。

    Abstract:

    Nonionic emulsification compound system of OP-10/AEO with Low foaming properties was utilized to solve the defection problems in emulsion microcapsule preparation. The Microcapsules of Urea-formaldehyde resin for self-healing material were synthesized by in-situ polymerization with diluted epoxy resin E-51 as the core material. The formation process and the thermal stability were analyzed by thermogravimetric analysis(TGA) and optical microscope(OM); the chemical structure was characterized by Fourier transform infrared(FTIR) and the Gauss fitting was used in the particle size distribution of microcapsules. The selection of the emulsifier system, and the corresponding amount of the emulsifier, the composition of raw materials, and the agitation rate were discussed to further illustrate the influence of the performance of the microcapsules. The results demonstrated that the system can effectively solve the emulsifier bubbling problem (amount: 5.0%, the mass ratio of the core materials to the shell materials: 0.8:1 and agitation rate: 1200 r/min). The encapsulation ratio of microcapsules was increased to 80% with narrow particle size distribution and better chemical stability.

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柴云,刘祥萱,王煊军,等. 基于非离子复合乳化剂自修复微胶囊的制备[J]. 科学技术与工程, 2016, 16(14): .
. Synthesis Process of Self-Healing Microcapsule Based on Nonionic Composition Emulsifiers[J]. Science Technology and Engineering,2016,16(14).

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  • 收稿日期:2016-01-07
  • 最后修改日期:2016-05-06
  • 录用日期:2016-02-15
  • 在线发布日期: 2016-05-18
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