【摘要】 随着淀粉磷酸酯中结合磷的提高,造纸添加剂对填料的留着和对细小纤维的留着作用均增大。淀粉磷酸酯中有交联性的二酯和三酯有较明显的留着作用,而对单酯的留着作用不十分明显。磷酸化反应时加入少量尿素,可以起到加速磷酸化反应和增加留着率的作用。更多还原

【Abstract】 With the increase of combined phosphorus of starch phosphate ester,the retention of paper additive would increase to all of filling and fibril.There were obvious retention on diester and tri-ester of correlation in starch phosphate ester and there was little retention in monoester.To add a little carbamide will lead to accelerating phosphor-acidification and enhancing retention in phosphor-acidification.更多还原