高级胶清与新鲜胶乳并用制备复合橡胶的研究

Study on Preparation of Compound Rubber by Mixing High-performance Skim with Fresh Natural Rubber Latex

胶清经中空纤维柱过滤浓缩后，与木瓜蛋白酶反应制备高级胶清，将高级胶清与新鲜胶乳按一定干基质量比混合、共凝制备复合橡胶，研究高级胶清与新鲜胶乳并用比对复合橡胶性能的影响。结果表明：当高级胶清用量为10～40份时，复合橡胶的理化性质可达到国产5#标准胶的要求；高级胶清能促进复合橡胶的硫化并提高其物理性能。

The natural rubber skim latex was filtered and concentrated in hollow fiber column, and reacted with papain to form high-performance skim. The compound rubber was then prepared by co- agglomeration of the blend of high-performance skim and fresh natural rubber latex. The effect of blending ratio of skim and natural rubber latex on the properties of compound rubber was investiga- ted. The results showed that addition of high-performance skim could promote vulcanization of the compound rubber and improve its physical properties. When the addition level of high performance skim was 10～40 phr, the physico-chemical properties of compound rubber met the requirements of SCR 5^# .