摘要
以端乙烯基硅氧烷化合物(VTES)为自交联单体,聚乙烯醇为高分子胶体保护剂,丙烯酰胺(AM)、苯乙烯(St)和丙烯酸丁酯(BA)为原料,通过无皂乳液共聚合制备自交联苯乙烯-丙烯酸树脂表面施胶剂,m(VTES)=5.0%,m(AM)=20%时,自交联苯丙乳液具有优异的施胶和表面增强效果,当以质量分数为0.2%的聚合物乳液和5.0%氧化淀粉复配进行表面施胶时,纸张施胶度可达66s,耐折度15次,拉毛速度最大为3.8s。通过红外光谱(IR)和透射电镜(TEM)对杂化材料进行表征,结果表明乳胶膜产生了Si—O—Si交联网络,VTES加入不会导致乳液粒径增大。
Self-crosslinkable styrene-acrylic copolymers were successfully prepared by soap-free emulsion polymerization,using vinyltriethoxysilane as acrosslinking agent and polyvinyl alcohol（PVA） as polymeric colloid stabilizer.The synthetic process was optimized.According to the application results,the optimum reaction conditions were described as below：m（AM）=20%,m（VTES） =5%.Moreover,the applied properties of the sized paper were measured as follows when the dosage of the surface sizing agent was 0.2% self-crosslinkable styrene-acrylic copolymers and 5.0% oxidation starch： the sizing value can reach 66s,picking velocity can reach 3.8s and folding endurance 15 was times.The self-crosslinkable styrene-acrylic copolymere were characterized by FT-IR and TEM,the results indicated the formation of Si—O—Si of membranes and the incorporation of VTES did not increase the size of emulsion.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第2期156-158,共3页
Journal of Functional Materials
基金
陕西省教育厅科研专项资助项目(2010JK458)
陕西科技大学自然科学基金资助项目(ZX09-12)
陕西科技大学科研启动基金资助项目(BJ11-05)
关键词
自交联
表面施胶
二次纤维
self-crosslinkable
styrene-acrylic copolymer
recycled-fiber
