Preparation and Characterization of Polystyrene-shelled Polysulfide Rubber Microcapsules

doi:10.11777/j.issn1000-3304.2022.22363

IMR OpenIR

	Preparation and Characterization of Polystyrene-shelled Polysulfide Rubber Microcapsules
	Wang, Xuan 1,2; Yuan, Xu-wen 1,3; Wang, Ge 1,2; Yang, Huai-yu 1,2
通讯作者	Yuan, Xu-wen(20210015@huat.edu.cn) ; Yang, Huai-yu(hyyang@imr.ac.cn)
	2023-07-01
发表期刊	ACTA POLYMERICA SINICA
卷号	54 期号:7 页码:1103-1112
摘要	The special molecular structure of polysulfide rubber made it have excellent sealing, anticorrosion, mechanical properties and bonding ability. However, the problems exposed in the use process, such as strong fluidity, short active period and complicated assembly process, greatly limited the assembly level and industrial application of polysulfide rubber. In order to solve the problems above, in this work, liquid polysulfide rubber was used as the core material and polystyrene as the shell material. Microcapsules with uniform size and smooth surface were prepared by solvent evaporation method, so that the viscous polysulfide rubber can be transformed from liquid to solid. According to the adsorption mechanism, evolution process and curing mechanism of wall materials on the surface of polysulfide rubber droplets, the effects of emulsion system conditions, reaction temperature, stirring rate and core-wall mass ratio on the morphology and distribution of microcapsules were investigated to realize the adjustability of microcapsule size and composition. The experimental results showed that the microcapsules with better uniformity can be obtained by using the mixed solution of PVA and NaOA as the emulsion system. This emulsification condition can not only significantly increase the content of polysulfide rubber in the microcapsules (the core content can be increased to 60 wt%), but also greatly reduce the size of the microcapsules, and the average particle size can be as low as 2.23 mu m. The above research laid a good foundation for the engineering application of the new generation microcapsule-based sealant, which was of great significance and application value to the assembly automation of sealants. [Graphics] .
关键词	Key engineering materials Liquid polysulfide rubber Polystyrene Microcapsules Solvent evaporation method
DOI	10.11777/j.issn1000-3304.2022.22363
收录类别	SCI
语种	英语
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:001006145500009
出版者	SCIENCE PRESS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178430
专题	中国科学院金属研究所
通讯作者	Yuan, Xu-wen; Yang, Huai-yu
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Hubei Univ Automot Technol, Dept Mat Sci & Engn, Shiyan 442002, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuan,Yuan, Xu-wen,Wang, Ge,et al. Preparation and Characterization of Polystyrene-shelled Polysulfide Rubber Microcapsules[J]. ACTA POLYMERICA SINICA,2023,54(7):1103-1112.
APA	Wang, Xuan,Yuan, Xu-wen,Wang, Ge,&Yang, Huai-yu.(2023).Preparation and Characterization of Polystyrene-shelled Polysulfide Rubber Microcapsules.ACTA POLYMERICA SINICA,54(7),1103-1112.
MLA	Wang, Xuan,et al."Preparation and Characterization of Polystyrene-shelled Polysulfide Rubber Microcapsules".ACTA POLYMERICA SINICA 54.7(2023):1103-1112.