不同新品系天然生胶加工性能分析  

Study on processability of raw natural rubbers from different new clones

作　　者：吕明哲[1] 黄茂芳[1] 方蕾[1] 王开典[1,2] 杨春亮[1] 

机构地区：[1]中国热带农业科学院农产品加工研究所,广东湛江524001 [2]海南大学农学院,海南海口570228

出　　处：《广东农业科学》2013年第15期113-116,共4页Guangdong Agricultural Sciences

基　　金：国家现代农业产业技术体系建设专项(CARS-31-GW9)

摘　　要：采用橡胶加工分析仪RPA2000,对目前海南、云南、广东三大植胶垦区中拟大规模推广种植的7个不同新品系天然生胶的加工性能进行分析,指标包括胶料的稠度及流变指数、粘弹特性、应力松弛时间、耐老化性能等。结果表明,云研77-2和热垦7-33-97生胶加工性能好,利于混炼加工;云研77-2及云研77-4的塑性保持率较小,耐老化性能差;湛试93-114的塑性保持率最大,耐老化性能最优。The processabilities of raw natural rubbers from 7 new clones intending to widely plant in the rubber planting areas of Hainan,Yunnan and Guangdong were studied using a rubber process analyzer RPA2000.Processabilities indecies contained consistency coefficient and rheological index,viscoelastic characteristic,stress relaxation time and ageing resistance.The results showed that raw natural rubbers from clones of Yunyan 77-2 and Reken 7-33-97 had good processability and were easy to mix.Raw natural rubbers from Yunyan 77-2 and 77-4 were lower in plasticity retention index（PRI） and poorer in ageing-resistance,whereas raw natural rubber from clone of Zhanshi 93-114 possessed the highest PRI and the best aging resistance.

关 键 词：天然橡胶 不同品系 加工性能 

分 类 号：TQ332[化学工程—橡胶工业]