不同刚性模块的协同效应

Synergistic Effect of Different Rigid Matrix

通过2种或3种材料结合鞣产生的协同效应,是提高皮胶原蛋白耐热稳定性的重要途径。已研究及实践的结果,间接证明了产生协同效应的原因,是2种鞣制用的材料在皮胶原纤维间聚合,形成了一种刚性模块。这种模块结构稳定且耐热性好,由此阻止了胶原分子在受热时造成的构型及构象的转变。为了明确刚性模块的鞣制机理,试验采用带羧基和醛基的氧化淀粉、荆树皮栲胶和金属盐,进行与皮粉结合鞣制模拟,进行差示扫描量热(DSC)分析,结果发现:氧化淀粉与金属盐结合,可以产生最优的刚性模块组合。

The Synergistic Effect can improve the shrinkage temperature by the combination tannage of two or three tanning materials. It is proved that there exists Rigid Matrix between collagen fibres. The Rigid Matrix has excellent resistance to heat which can prevent the collagen molecules from conformation change when heated. For further understaning the mechanism, the oxidized starch with carboxyl and aldehyde groups, mimosa and metal salts were used to react with hide powder and the compunds were tested by DSC. It shows that the optimal Rigid Matrix stmctmre is obtained by the combination of the oxidized starch and metal salts.