纸张干强剂在纸质文物加固与修复中的应用

Application of Paper Dry Strength Agent in Reinforcement and Restoration of Paper Cultural Relics

干强剂是造纸工业中增加纸张强度的一类重要化学品,通俗意义上来讲,凡是能与纤维形成氢键结合的高聚物都可以作为干强剂。纸张干强剂经历了从最初的植物胶类到淀粉类,再到之后的有机高分子类的发展历程,目前国内主要是以聚丙烯酰胺类和改性淀粉类高分子聚合物对纸质文物进行加固和保护研究。主要综述了纸张干强剂的种类及研究现状,以及相关应用技术的发展。

Dry strength agent is a kind of important chemical to increase the paper strength in the paper industry.In a colloquial sense,the polymers which can form hydrogen bond with fiber can be used as dry strength agent.Paper dry strength agent has experienced the development process from vegetable gum to starch,and then to organic polymer.At present,polyacrylamide and modified starch polymers are mainly used to strengthen and protect paper relics in China.The types and research status of paper drying strength agents and the development of related application technologies were reviewed.