硝酸氧化松香水分散液的合成及其性能研究

Synthesis and properties of rosin dispersion oxidized by nitric acid

原胶是一种以聚异戊二烯为主要成分的天然高分子化合物,有良好的黏接性能,但价格较高,快干性不佳,加入改性松香可以解决此问题。利用硝酸、季戊四醇、丙烯酸丁酯、桐油等对松香进行改性,再加入乳化剂制成硝酸氧化松香水分散液。通过热分析、红外光谱分析,以及拉伸性能、快干性等测试,表明所合成的硝酸氧化松香水分散液的性能优于市售改性松香,可以代替部分原胶,而不影响其黏接性能,从而降低了产品成本,提高了快干性,达到了改性的目的。

The original gum,which is a natural polymer component of polyisoprene.It has good adhesion properties.Modified rosin is used to reduce it＇s cost and increase it＇s quick-drying.The nitric acid,pentaerythritol,butyl acrylate,wood oil and etc.were used to modify rosin.Then add emulsifier to make rosin dispersion oxidized by nitric acid.At last through the thermal analysis,IR,the stretch performance test,the quick-drying test and so on.The results showed that the modified rosin dispersion had better performances than market modified rosin.It could partly take place of the original gum,but not affected the adhesion properties,so reduce costs and increase quick-drying,achieve the purposes of the modification.