纺织学报 ›› 2014, Vol. 35 ›› Issue (10): 60-0.

• 染整与化学品 • 上一篇    下一篇

聚硅氧烷链段相对分子质量对改性聚硅氧烷的影响

  

  • 收稿日期:2013-08-19 修回日期:2014-05-12 出版日期:2014-10-15 发布日期:2014-09-17
  • 通讯作者: 吴明华 E-mail:wmh@zstu.edu.cn

Influence of relative molecular weight of polysiloxane segment on modified polysiloxane

  • Received:2013-08-19 Revised:2014-05-12 Online:2014-10-15 Published:2014-09-17
  • Contact: Ming-Hua Wu E-mail:wmh@zstu.edu.cn

摘要: 为了改善氨基硅油乳液漂油及其整理织物易黄变和疏水等问题,以双端环氧基聚硅氧烷和聚醚胺(ED-600)为原料,通过环氧基与胺基的亲核开环反应,合成一种嵌段型聚醚胺改性聚硅氧烷。研究了双端环氧基聚硅氧烷分子中聚硅氧烷链段相对分子质量对环氧基转化率、乳液性能及整理织物性能的影响,优化了聚硅氧烷链段相对分子质量,测定了改性聚硅氧烷乳液及其整理棉织物的性能。结果表明:当聚硅氧烷链段相对分子质量为4300时,环氧基转化率高;产物数均分子质量为1.73×104,分子质量分布较窄;改性聚硅氧烷乳液稳定不漂油,平均粒径为54 nm;相对氨基硅油及侧链型聚醚改性氨基硅油,改性聚硅氧烷整理织物具有良好的柔软性、亲水性以及较低的黄变性。

Abstract: In order to solve the problems of amino modified silicone such as emulsion floating oil, yellowing easily and hydrophobic of the finished fabric. A kind of block type polyether amine modified polysiloxane was synthesized with polysiloxane terminated with epoxy and polyether terminated with aminopropyl(ED-600) as raw materials, by nucleophilic ring-opening reaction of epoxy group with amino. The Influence of relative molecular weight of polysiloxane segment of polydimethylsiloxane terminated with epoxy on the epoxy groups conversion rate, the properties of emulsion, and the properties of finished fabric were studied, the relative molecular weight of polysiloxane segment was optimized, the properties of modified polysiloxane emulsion and its finished cotton fabric were measured. The results indicated that: as the relative molecular weight of polysiloxane was 4300, the epoxy groups conversion rate was high; the Mn of modified polysiloxane was 1.73×104, the molecular weight distribution of modified polysiloxane was narrow; the modified polysiloxane emulsion had stable property and no floating oil, the average particle size was 54 nm; compared with the fabric finished by amino silicone and side-chained polyether modified amino-silicone, the fabric finished by the modified polysiloxane had better softness, hydrophilic and lower yellowing.

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