阳离子分散石油树脂胶施胶机理的初步研究

合成了一种新型的阳离子分散石油树脂胶,并将其在漂白麦草浆中进行了施胶实验,用对纸页进行扫描电镜观察、扫描电镜-X衍射能谱分析及差示扫描量热分析等手段,初步探讨了阳离子分散石油树脂施胶剂的施胶机理.分析结果表明,胶料粒子在浆料中能依靠其正电性与带负电的纤维结合,在适宜的温度下,胶料发生软化和铺展,其极性基团部分与纤维结合,疏水的非极性部分转向纤维的外侧,从而完成施胶过程.

Preliminary Study on the Sizing Mechanism of Dispersed Cationic Petroleum Resin Sizes

A novel dispersed cationic petroleum resin size was prepared and used in bleached wheat straw stock. This paper discussed the sizing mech- anism of the size through analyzing the hand sheets by means of the scanning electron microscope, differential scanning calorimetry and SEM-EDXA. The analysis indicated that the sized particle with positive electrical charge could attach to the fiber with negative electric charge. Under proper temperature, the particle could be softened up and outspread on the fiber surface. Its polar groups could bond with fiber, and non-polar hydrophobic groups could turn toward outside of the fiber. As a result, the sizing process was completed.