【摘要】 以环氧硅氧烷作交联剂,聚乙烯醇(PVA)为高分子胶体稳定剂,采用无皂种子聚合制备了改性聚丙烯酸酯表面施胶剂。当w(AM-MAA)=8%~10%,软硬单体比例n(BA)∶n(St)=1.2,w(PVA)=2%~3%,w(环氧硅氧烷)=2%时,改性聚丙烯酸酯具有优异的施胶效果;以质量分数为1.0%的聚合物乳液进行表面施胶时,纸张施胶度可达9.68 s,表面强度达3.8 m/s。更多还原

【Abstract】 Through surfactant-free seed polymerization,a modified polyacrylate was prepared with epoxysiloxane as crosslinker and polyvinyl alcohol as polymer colloid stabilizer.It can have excellent sizing property when w(AM-MAA)=8%-10%,n(BA)∶n(St)=1.2,w(PVA)=2%-3%,w(epoxysiloxane)=2%.The paper’s sizing value can reach 9.68 s,and their surface strength can reach 3.8 m/s with 1.0% of polymer emulsion added.更多还原