多羟基Bola有机硅季铵盐的合成、表征及其应用性能

Synthesis characterization and application of Bola silicone quaternary ammonium salt

以1,3-二(3-缩水甘油醚丙基)-1,1,3,3-四甲基二硅氧烷(EDH)和八甲基环四硅氧烷(D4)为原料合成了端环氧硅油(ETSO),以ETSO为原料与葡甲胺胺化得到中间体有机硅嵌段硅油(PTSO),然后用γ-氯丙基三甲氧基硅烷(CPTSO)季铵化改性制备了Bola有机硅季铵盐(BPTSO)。BPTSO的季铵化过程最优合成工艺条件为:反应温度为80℃,物料摩尔比为n(PTSO)∶n(CPTSO)=1∶1.2,反应时间为3 h,PTSO转化率达98.60%。通过FT-IR、^(1)H NMR、TGA、TEM对BPTSO的结构及BPTSO乳液整理后织物的微观形貌进行了表征。测试结果表明:BPTSO乳液的表面张力γ为29.4 mN/m,临界胶束浓度CMC为0.036 mmol/L,具有囊泡结构和优越的稳定性,经BPTSO乳液整理后的棉织物具有优异的柔软度、白度及亲水性,当BPTSO乳液的用量为60 g/L时,对棉织物的增深率可达到46.5%。

Epoxysilicone oil(ETSO)was synthesized with(3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane(EDH)and octamethylcyclotetrasiloxane(D4)as raw material first.Then intermediate organosilicone block silicone oil(PTSO)was obtained by amination with meglumine.Finally,Bola silicone quaternary ammonium salt(BPTSO)was synthesized by quaternization of PTSO and γ-chloropropyltrimethoxysilane(CPTSO).The process conditions of BPTSO were optimized as follows:the reaction temperature was 80℃,the molar ratio of material was n(PTSO)∶n(CPTSO)=1∶1.2,the reaction time was 3 h,and the conversion rate of PTSO was 98.60%.The structure and morphology of BPTSO were characterized by FT-IR,^(1)H NMR,TGA,SEM and TEM.The results of performance test show that BPTSO have core-shell structure and superior stability,the fabrics treated with BPTSO emulsion had excellent softness,whiteness and hydrophilicity.The depth enhancement rate of cotton fabric reached 46.5%.