摘要
采用N-丁基-3-氨丙基三乙氧基硅烷与辛基三乙氧基硅烷复合接枝HDI三聚体(TS)嵌入水性聚氨酯杂化结构体系.其杂化分散体(PU-TS)的粒径依赖于硅氧烷改性的HDI三聚体,且随TS含量增加,粒径相应提高;PU-TS粒径尺寸越大,其黏度降低.TS用量为10%时,可获得最佳拉断伸长率;TS用量为15%时,PU-TS杂化膜具有最高拉伸强度;硅氧烷改性PU膜具有更光滑表面,且随着硅氧烷含量提高,表面更光滑.具有不同TS含量PU-TS杂化膜的吸水率和甲苯溶胀率都明显降低,且随着TS含量提高其吸水率和甲苯溶胀率降低越多.
Waterborne polyurethane structure system was embedded by N-butyl-3-ammonia pro¬pyl triethoxy silane and octyl compound triethoxy silane grafted Six methylene diisocyanate trimer(TS).The particle size of miscellaneous dispersions(PU-TS)was dependent on the content of TS modified by siloxane and with the increase of TS content,particle size increased;The bigger the particle size of PU-TS,the low¬er the viscosity.When TS dosage was 10%,the best tensile elongation was 425%;when TS dosage was 15%,the PU-TS hybrid membrane had the highest tensile strength and tensile elongation;Siloxane modi-fied PU membrane had a more smooth surface,and with siloxane content increased,the surface more smooth.Both water absorption and methylbenzene absorption reduced as the increase of TS content.
作者
肖俊平
赵辉
冯琼华
李爽
蒋涛
黄世强
张群朝
XIAO Jun-ping;ZHAO Hui;FENG Qiong-hu;LI Shuang;JIANG Tao;HUANG Shi-qiang;ZHANG Qun-chao(School of Materials Science and Engineering,Hubei University,Wuhan 430062,China; Hubei Blue Sky New materials INC,Xiantao 433000 China)
出处
《有机硅材料》
CAS
2016年第S01期25-32,共8页
Silicone Material
