不同割胶月份天然橡胶加速贮存前后的性能  

Effect of Tapping Time on Properties of Natural Rubber Before and AfterAccelerated Storage

作　　者：熊延林[1] 张桂梅[1] 姜士宽[1] 岩利 邹建云[1] XIONG Yanlin;ZHANG Guimei;JIANG Shikuan;Yan Li;ZOU Jianyun(Yunnan Institute of Tropical Crops,Jinghong 666100,China)

机构地区：[1]云南省热带作物科学研究所,云南景洪666100

出　　处：《热带农业科技》2020年第3期16-20,共5页Tropical Agricultural Science & Technology

基　　金：云南省现代农业天然橡胶产业技术体系建设专项(2018KJTX008);云南省科研院所技术开发研究专项(2015DC013)。

摘　　要：选取西双版纳地区常见的RRIM600、PR107、GT1、云研77-2和云研77-4共5个天然橡胶品系,研究不同割胶月份橡胶在加速贮存前后性能的变化。结果表明:5个品系中云研77-4的塑性初值(P0)和门尼粘度最高,云研77-2次之,其余3个品系则较低;RRIM600的塑性保持率(PRI)最高,云研77-4的最低;RRIM600和PR107两个品系的P0和PRI随割胶月份变化幅度较大。云研77-2橡胶的性能随割胶月份变化最小,且不同割胶月份的云研77-2橡胶在贮存后性能最为一致,云研77-4次之。Five clones of rubber tree(RRIM600,PR107,GT1,Yunyan77-2 and Yunyan77-4)wildly planted in Xishuangbanna were selected to study the effect of rubber tapping time on latex properties of natural rubber(NR).The results showed clone Yunyan77-4 has the highest initial Wallace plasticity(P0)and Mooney viscosity,then is clone Yunyan77-2,and the other three clones the least.Plasticity retention index(PRI)of NR from RRIM600 was the highest,while Yunyan77-4 was the lowest.The values of P0 and PRI from clones RRIM600 and PR107 varied greatly with the tapping time.There is no obvious change for NR properties of Yunnan 77-2,and it keeps stable at different tapping time in accelerated storage,followed by clone Yunnan 77-4.

关 键 词：天然橡胶 品系 季节 加速贮存 性能 

分 类 号：TQ332.1[化学工程—橡胶工业]