选用合适的复合酰化体系，通过电位滴定，测定了工业碱木质素及其改性树脂的羟值。
Hydroxyl values of straw alkali lignin and modified lignin resin were determined by potentiometric titration in suitable composite acylation system.
然后经过臭氧-过氧化氢漂白，结果表明：卡伯值越高，脱木质素选择性越差，白度上升值越低。
Then ozonic-hydrogen peroxide bleaching were carried out and the results show that the higher of Kappa number, the poor of the delignification selectivity and the lower of brightness rising.
结果表明：制浆时，不同煤化程度的煤对应的NSF具有不同的最佳缩合度值，添加木质素磺酸钠可有效地提高添加剂NSF的效能。
The results show that the optimal condensation degree of NSF varied with the coal ranks, and the function of NSF can be effectively improved by combining with lignosulfonate.
结果表明：制浆时，不同煤化程度的煤对应的NSF具有不同的最佳缩合度值，添加木质素磺酸钠可有效地提高添加剂NSF的效能。
The results show that the optimal condensation degree of NSF varied with the coal ranks, and the function of NSF can be effectively improved by combining with lignosulfonate.
应用推荐