摘要
以异佛尔酮二异氰酸酯(IPDI)和聚丙二醇(PPG,Mn=600)为原料,在催化剂二月桂酸二丁基锡(DBTDL)作用下合成聚氨酯预聚体,经3-氨丙基三乙氧基硅烷(KH-550)改性后,通过1,4-丁二醇(BDO)和三乙醇胺(TEA)扩链,合成了阳离子型有机硅改性水性聚氨酯乳液.讨论了R值[n(—NCO)/n(—OH)]、w(KH-550)以及w(TEA)对乳液性能的影响.利用红外光谱(FT-IR)、核磁共振氢谱(1H-NMR)和Zeta电位表征了增深剂的结构及其性能,并测试了全棉织物和真丝织物经增深剂整理后的性能.结果表明:增深后的黑色全棉织物的增深百分率为19.73%,黑色真丝织物的增深百分率为17.49%,干、湿摩擦牢度提高0.5级以上,整理后织物的耐洗性能比较好.
Taking isophorone diisocyanate （IPDI） and polypropylene glycol （PPG） as raw material, polyure- thane prepolymer was synthesized under the catalysis of dibutyltin dilaurate （DBTDL）. Cationic type of organic silicon modified waterborne polyurethane emulsion was prepared through the modification of the prepolymer with 3-aminopropyltriethoxysilane （KH-550） and through the chain extension with 1,4-butanediol （BDO） and triethanolamine （TEA）. The effects of R value [n（--NCO）/n（--OH）], w（KH-550）, and w（TEA） on the performance of emulsion were discussed. The structure and properties of the darkening agent were characterized by FT-IR, ^1H-NMR and Zeta potential. The properties of the cotton fabrics and silk fabrics finished with the dark- ening agent were tested. The results showed that the deepening ratio of the black cotton fabrics and silk fab- rics were 19.73% and 17.49%, respectively. The dry and wet rubbing fastness were both increased over half level. And the darkening effect of the finished fabrics had good washing durability.
出处
《印染助剂》
CAS
北大核心
2013年第4期26-30,共5页
Textile Auxiliaries
基金
江苏高校优势学科建设工程资助项目(PAPD)
关键词
增深剂
水性聚氨酯
有机硅
阳离子型
darkening agent
waterborne polyurethane
silicone
cationic type
