【摘要】 该文介绍了对阳离子淀粉与窄分子量阴离子聚丙烯酰胺(APAM)接枝共聚来制备纸张增干强剂,对合成反应的条件进行了单因素分析,如淀粉与窄分子量阴离子聚丙烯酰胺的比例、反应的温度、丙烯腈的用量等因素。并将合成的助剂应用到阔叶木浆中,检测了纸张的抗张指数、耐破指数、耐折度和撕裂指数四个主要的强度指标,起到了很好的增强效果。更多还原

【Abstract】 This thesis introduced the polymerization of cationic starch and narrow molecular weight APAM used for dry-strengthening agent,and analyzed the single factor simultaneously,such as the inverse portion of the starch and APAM,the temperature of reaction,acryloitrile concentration and on.And we also applied the composite addition agent to the hardwood pulp,and tested the paper’s tensile index,bursting index folding endure and tearing index,and the effect were obvious.更多还原