季铵盐改性聚硅氧烷微乳液的半连续共聚法  

Preparation of ammonium modified polydimethylsiloxanol microemulsions by semi-continuous copolymerization

作　　者：彭忠利[1] 朱国荣[1] 

机构地区：[1]惠州学院化学工程系,惠州516007

出　　处：《印染》2013年第23期13-17,共5页China Dyeing and Finishing

基　　金：广东省科技计划项目(2005B16001155);惠州市科技计划项目(2012-3);惠州学院校级项目(C211.0407)

摘　　要：以八甲基环四硅氧烷(D_4)和甲基二乙氧基硅丙基二甲基十八烷基氯化铵(GS-18)为原料,AEO-7和AEO-9为乳化剂,十二烷基苯磺酸(DBSA)为催化剂,采用半连续乳液聚合法制备阴离子-非离子复合型季铵盐改性聚硅氧烷(QAMP)微乳液;考察催化剂DBSA含量、反应温度、预乳液滴加时间、非离子复合乳化剂(NCS)用量、D_4含量和硅氧烷季铵盐含量对微乳液透光率的影响。结果表明,在一定范围内,微乳液的透光率随DBSA含量和非离子乳化剂用量的增加,反应温度的升高及预乳液滴加时间的延长而变大;随D_4含量和硅氧烷季铵盐含量的增加而降低。当m(NCS)/m(D_4)和m(DBSA)/m(D_4)都为0.3,聚合温度为75℃,预乳液的滴加时间为2 h时,可制备有机硅含量为20%,有机硅季铵盐含量1.5%(相对于D_4的质量),透光率为92%的微乳液,且其对涤纶布有较好的整理效果。The anionic/nonionic compound quaternary ammonium modifying polydimethylsiloxanol （QAMP） microemulsions are prepared by semi-continuous microemulsion copolymerization using octamethylcyclotetrasiloxane （ D4 ） and 3-（ diethoxymethyisilyl）-n-octadecyldimethyl-ammonium chloride （GS-18） as raw materials, AEO-7 and AEO-9 as emulsifiers and dodecy benzen- sulfonic acid （DBSA） as a catalyst. The effects of the dosages of catalyst （ DBSA）, non ionic emulsifier（ NCS）, D4 and silicone quaternary ammonium salt, the dropping time of pre-emulsion and reaction temperature on the transmittance of microemulsion are investigated. The results show that within a certain range, the transmittance of QAMP microemulsion increases with the increase of the dosage of DBSA and NCS, the rise of reaction temperature, the elongation of dropping time of pre-emulsion and the decrease of the dosages of D4 and silicone quaternary ammonium salt. Under the conditions of m（ NCS）/ m（ D4 ） and m（ DBSA）/m（ D4 ） being 0.3, polymerization temperature 75 ℃ and dropping time of pre-emulsion 2 h, the preparation of micro emulsion with silicone content of 20%, organo silicon quaternary ammonium salt content of I. 5% （mass ratio to D4 ） , light transmittance of 92% is available with a better finishing effect on polyester fabric.

关 键 词：整理剂 半连续微乳液共聚 季铵盐改性聚硅氧烷 涤纶 

分 类 号：TQ316.334[化学工程—高聚物工业]