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以丙烯腈改性淀粉为分散剂,苯乙烯(St)、丙烯酸丁酯(BA)为单体,丙烯酰胺(AM)为交联单体,甲基丙烯酸二甲基氨基乙酯(DM)为阳离子单体,甲基丙烯酸十二氟庚酯(FM)为功能单体,过硫酸钾(K2S2O8)为引发剂,采用无皂乳液聚合技术合成了一种阳离子含氟表面施胶剂。最佳合成工艺是:w(腈基淀粉)=8%,w(FM)=0.3%,w(DM)=0.9%,w(AM)=3%,w(K2S2O8)=0.5%,m(St):m(BA)=2.5。并对施胶纸张各种性能做了测试,与同等条件下未含氟表面施胶剂相比,纸张的施胶度和抗张强度提高明显。
Using acrylonitrile modified starch as dispersant, styrene (St), butyl acrylate (BA) as monomer, acrylamide (AM) as crosslinking monomer and dimethylaminoethylmethacrylate Cationic monomer, dodecafluoroheptyl methacrylate (FM) as functional monomer and potassium persulfate (K2S2O8) as initiator, a cationic fluorine-containing surface sizing agent was synthesized by soap-free emulsion polymerization. The optimum synthesis conditions were: w (nitrile starch) = 8%, w (FM) = 0.3% w (DM) = 0.9% w AM = 3% w K2S2O8 = 0.5% St): m (BA) = 2.5. And various properties of sizing paper has been tested, and under the same conditions without fluorine surface sizing agent, the paper sizing and tensile strength increased significantly.