阳离子活性聚合物/AKD乳液的施胶和增强作用  

Study on Surface Sizing and Strengthening Function of a Cationic Active Polymer/AKD Hybrid Emulsion

作　　者：王润辰[1] 李小瑞[1] 费贵强 王海花[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《中国造纸》2010年第1期27-30,共4页China Pulp & Paper

基　　金：国家自然科学基金资助项目(20876093;50673055);陕西科技大学研究生创新基金项目

摘　　要：以合成的阳离子活性聚合物作为高分子乳化剂,制备了阳离子活性聚合物/AKD乳液。研究了乳液制备过程的主要影响因素,并比较了阳离子活性聚合物/AKD乳液与传统AKD乳液对纸张的增强性能。结果表明,当m(阳离子活性聚合物)∶m(AKD)=0.30时可制得稳定乳液,乳液具有很好的施胶和增强效果,且明显优于传统的AKD乳液。当乳液(固含量为15%)以用量0.13%(对w=5%的淀粉溶液)进行施胶时,纸张施胶度可以达到40s,环压指数提高了13.6%,耐折度提高了185%。纸张表面的SEM分析显示,经阳离子活性聚合物/AKD乳液施胶后的纸张表面,纤维间的界面变的模糊,纤维结合更加紧密。The cationic active polymer/AKD hybrid emulsion was prepared with a cationic active polymer synthesized as dispersant. Main factors affecting the preparation process of AKD emulsion were investigated and the differences between cationic polymer/AKD emulsion and traditional AKD emulsion were analyzed. It was found that the emulsion was relative stable with excellent sizing and strengthening effect when m（active polymer）/m（AKD）was 0.30. Cationic active polymer/AKD emulsion was superior to the traditional AKD emulsion indicated by comparison experiments. The sizing experiments showed that a better sizing degree could be achieved when a dosage of AKD emulsion was 0.13%, sizing grade could reach 40 s, ring crush index and folding endurance could increase 13.6% and 185% respectively. Interface between fibers on the surface of the paper sized by cationic active polymer/AKD emulsion became blurring and tightness observed by SEM.

关 键 词：AKD 表面施胶 阳离子聚合物 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]