低相对分子质量反式-1,4-聚异戊二烯蜡在NR/TPI并用胶中的应用  

Application of Low Molecular Weight Trans-1,4-polyisoprene Wax to NR/TPI Blends

作　　者：刘玉鹏[1] 杜爱华[1] 姚薇[1] 黄宝琛[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《特种橡胶制品》2006年第6期5-7,共3页Special Purpose Rubber Products

基　　金：国家自然科学基金资助项目(20274021)

摘　　要：将低相对分子质量反式-1，4-聚异戊二烯蜡（LMTPIW）代替芳烃油用于天然橡胶（NR）和反式-1，4-聚异戊二烯（TPI）并用胶中．研究其对并用胶性能的影响。结果表明，用LMTPIW代替芳烃油用于NR／TPI并用胶中，操作方便，可改善混炼胶的加工性能，混炼胶的焦烧时间延长；提高了硫化胶的拉断伸长率、撕裂强度、屈挠性能；改善了炭黑的分散性；热空气老化性能略有下降。LMTPIW用量在10～15份时，与加入5份芳烃油后的增塑效果相当．屈挠性能可提高2～4倍，胶料的综合性能最佳。The effects of low molecular weight trans 1,4-polyisoprene wax（LMTPIW） on the properties of NR/TPI compounds and vulcanizates were studied, and compared with that of aromatic oil. The results showed that the processibility of NR/TPI blends was improved by using LMTPIW in- stead of aromatic oil. The scorching time was extended. The elongation at break ,and tear strength of NR/TPI vulcanzates were improved. At the same time the dispersion of carbon black in the NR/TPI compounds containing LMTPIW was also improved. Compared with aromatic oil,LMTPIW could impart good flex fatigue for NR/TPI vulcanizates,but depressed hot air aging properites of NR/TPI vuleanizales lightly at the same time. When 1he amounl of LMTPIW was 10-15phr, the flex crack was improved 2-4 folds.

关 键 词：低相对分子质量反式-1 4-聚异戊二烯蜡 芳烃油 天然橡胶 反式-1 4-聚异戊二烯 

分 类 号：TQ330.38[化学工程—橡胶工业]