This paper dealt with the synthesis of cationic guar gum (CGG) by half-dry process, and discussed the factors influencing the optimum process conditions of the synthesis.

• 讨论了半干法合成阳离子瓜尔胶(CGG)的影响因素,优化出合成阳离子瓜尔胶的最佳工艺条件,并将所合成的阳离子瓜尔胶作为助留剂应用于废纸脱墨浆。