微生物凝固NR和酸凝固NR的性能对比  

Comparison of the properties of NR coagulated by microorganisms and acid

作　　者：佘晓东[1] 廖双泉[1] 李思东[2,3] 钟杰平[2] 何灿忠[1] 

机构地区：[1]海南大学材料与化工学院,海南海口570228 [2]广东海洋大学理学院,广东湛江524088 [3]农业部热带作物产品加工重点实验室,广东湛江524001

出　　处：《橡胶工业》2010年第3期155-158,共4页China Rubber Industry

基　　金：国家自然科学基金资助项目(50773013;50573064;50963001)

摘　　要：对微生物凝固NR(NR-m)和酸凝固NR(NR-a)的性能进行对比。结果表明,NR-m胶料的t10,t60和t90显著短于NR-a胶料,NR-m硫化胶的交联密度、定伸应力和拉伸强度远高于NR-a硫化胶,证明微生物凝固法可促进NR的硫化,使NR-m硫化胶的网络分子结构比较紧密,表现出比NR-a硫化胶更好的物理性能。The properties between NR coagulated by microorganisms（NR-m） and acid（NR-a） were comparatively investigated.The results showed that,t10,t60and t90 of NR-m compound were shorter than those of NR-a compound,the cross-link density,modulus and tensile strength of NR-m vulcanizate were higher than those of NR-a vulcanizate.It indicated that the microbial coagulation process could promote the vulcanization of NR,which led to compact structure and better physical properties of NR-m vulcanizate compared with NR-a vulcanizate.

关 键 词：微生物凝固 酸凝固 NR 交联密度 

分 类 号：TQ332[化学工程—橡胶工业]