Preparation and properties of rosin-based cationic waterborne polyurethane dispersion

编号 020030302

推送时间 20210809

研究领域 林产化工 

年份 2021 

类型 期刊 

语种 英语

标题 Preparation and properties of rosin-based cationic waterborne polyurethane dispersion

来源期刊 Colloid and Polymer Science

期 第303期

发表时间 20210727

关键词 Waterborne polyurethane;  Rosin;  Organosilane;  Antibacterial properties; 

摘要 Green renewable resource has become a global hot spot. In this study, naturally occurring resource rosin derivative (RAG) was used to prepared a cationic waterborne polyurethane (WPU) dispersion using n-methyl di-ethanolamine (MDEA) as an ion center and 1,3-bis(3-aminopropyl) tetramethydisiloxane (APTMDS) as a chain extender, and hexamethylene diisocyanate (HDI) as a hard segment. The effects of MDEA and APTMDS contents on the particle size and storage stability of the WPU dispersion was determined, in addition, thermo-mechanical and mechanical properties, and antibacterial property as well as water uptake of the resulting polyurethane films were thoroughly investigated. The results show that an increase in the APTMDS content considerably improved the mechanical properties, surface hydrophobicity and water resistance of the WPU films. Moreover, all WPU films exhibit enhanced antibacterial activity against Escherichia coli and Staphylococcus aureus with the increase in the MDEA and APTMDS contents.

服务人员 尚玮姣

服务院士 宋湛谦

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