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以聚乙烯醇(PVA)为打底液、丙烯酸丁酯(BA)为软单体、甲基丙烯酸甲酯(MMA)和苯乙烯(St)为硬单体、过硫酸铵(APS)为引发剂、十二烷基磺酸钠(SDS)和烷基酚聚氧乙烯醚(OP-10)为乳化剂,合成了纸质文物保护用苯丙乳液施胶剂。研究结果表明:当m(OP-10)∶m(SDS)=1.3∶1.0或1.0∶1.3、乳化温度为50℃、乳化时间为0.5 h、m(软单体)∶m(硬单体)=1.0∶1.0、m(MMA)∶m(St)=2.0∶1.0、w(乳化剂)=1.6%、w(PVA)=4%(均相对于乳液质量而言)和w(固含量)=15%时,苯丙乳液施胶剂对纸张纤维进行加固后,明显提高了纸张的力学性能,有利于纸张的长久保存。
Poly (vinyl alcohol) (PVA) was used as the primer, butyl acrylate (BA) as soft monomer, methyl methacrylate (MMA) and styrene as hard monomers, ammonium persulfate , Sodium dodecyl sulfate (SDS) and alkylphenol polyoxyethylene ether (OP-10) as emulsifiers, a styrene-acrylic emulsion sizing agent for paper protection was synthesized. The results showed that when m (soft monomer): m (hard monomer) and m (OP-10): m (SDS) = 1.3:1.0 or 1.0:1.3, the emulsifying temperature was 50 ℃ and the emulsifying time was 0.5 h, = 1.0: 1.0, m (MMA): m (St) = 2.0: 1.0 w (emulsifier) = 1.6% w (PVA) = 4% (all relative to the mass of the emulsion) = 15%, styrene-acrylic latex sizing agent on paper fiber reinforcement, significantly improve the mechanical properties of paper, is conducive to long-term preservation of paper.