合成了阳离子羟丙基瓜尔胶（CHPG），研究了该系列瓜尔胶衍生物对旧报纸脱墨浆的助留助滤作用。
This paper discussed retention and drainage properties of a series of cationic-hydroxypropyl guar gum derivatives(CHPG), which were successfully synthesized in our lab.
对新型造纸增强剂瓜尔胶在文化纸中的应用进行了实验室小试，并与浆内添加阳离子淀粉的增强效果进行了对比；
The application test of guar gum as a new strengthening agent in cultural paper was carried out in laboratory scale. Its strengthening effect was compared with that of cationic starch.
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