连坤鹏，刘润林，朱力勇，赵英华

（东莞英科水墨有限公司，广东 东莞 523000）

水性丙烯酸树脂及防白电油水墨的研究*

连坤鹏，刘润林，朱力勇，赵英华

（东莞英科水墨有限公司，广东 东莞 523000）

对防白电油水墨用丙烯酸树脂的制备进行了研究，以满足特种纸张防白电油的需要。实验以甲基丙烯酸、丙烯酸乙酯、甲基丙烯酸甲酯、丙烯酸羟乙酯和丙烯酰胺为聚合单体，过硫酸铵为引发剂，在水和乙醇中进行聚合，然后中和成透明的水溶性丙烯酸树脂液。此外，实验还研究了乙醇用量以及交联单体用量对防白电油性能的影响。结果表明，混合溶剂去离子水/乙醇的质量比例为50/50、丙烯酸羟乙酯和丙烯酰胺的比例为2∶1、且含量为7%（占单体总量）时，制得的丙烯酸树脂液黏度适中，且防白电油耐擦洗效果最佳。该树脂液无毒、环保、经济，用该树脂液和PVC（聚氯乙烯）乳液同时配墨后进行防白电油测试对比，两者效果相当。

水性丙烯酸树脂液；防白电油

Abstract:An investigation on water-based acrylic resin and anti-white oil ink was presented in order to meet the requirement of anti-white oil for special paper.Methyl acrylate,ethyl acrylate,methyl methacrylate,hydroxyethyl acrylate and acrylamide were employed as monomers,and ammonium persulfate as initiator,to prepare water-soluble acrylic resins;the polymerization was carried out first in the presence of water and ethanol,and then neutralized to the transparent acrylic resin liquid.Further more,the investigation also evaluated the effect of ethanol and crosslink monomer dosage on anti-white oil properties.The results indicated that when water/ethanol ratio was 50/50,hydroxyethyl acrylate/acrylamide ratio was 2∶1,and its content was 7%,the final resin product had proper viscosity,and its performance of anti-white oil was best.This resin is non-toxic,environment friendly and economic.After the anti-white oil test,it was showed that,the prepared resin solution and PVC (polyvinyl chloride)emulsion had similar performance of anti-white oil.

Key words:Water-based acrylic resin solution;anti-white oil

前 言

水墨即水性油墨，也称水基油墨，是以水为溶剂制成的油墨。近年来，水墨受到高度重视，产品性能的多样化也越来越受欢迎，如水性金银墨、导电水墨、塑料薄膜印刷水墨等[1-2]。这对水墨的性能提出了更高的要求，如防白电油水墨需要满足纸品后加工因粘污胶水而用白电油清洁且不损伤印品的要求。

目前，用于水墨的树脂主要是丙烯酸树脂类或改性的丙烯酸树脂类[3]，这是由于改性的丙烯酸树脂在光泽度、耐热性、耐水性、耐溶剂性能[4]等方面具有显著的优势。……