摘要
在天然鲜胶乳中分别加入不同用量的盐酸羟胺,研究其对天然橡胶(NR)理化性能、硫化特性及机械性能的影响。结果表明,当盐酸羟胺用量在0.05%~0.15%范围时,制备的天然橡胶具有恒粘效果(ΔP0≤3,ΔMv≤6),而盐酸羟胺用量大小对PRI值变化影响不大;当盐酸羟胺用量小于0.05%时,天然橡胶硫化效果较好,且用量为0.03%的硫化速度最快,0.04%次之,0.05%最慢;盐酸羟胺用量对天然橡胶机械性的影响不明显。
The effects of different dosages of hydroxylamine hydrochloride on the physical properties, curing characteristics,mechanical properties of natural rubber were studied. The results showed that constant viscosity natural rubber（ΔP0≤3,ΔMV≤6）was obtained when the treatment dosages of hydroxylamine hydrochloride was in the range of 0.05 ~0.15%r, however the dosages of hydroxylamine hydrochloride had no effect on the PRI; natural rubber can get better vulcanization performance when treatment dosages of hydroxylamine hydrochloride was lower than 0.05%, and when treatment dosages was0.03%, it got the better vulcanization speed, treatment dosages of 0.04% took second place, than followed the treatment dosages of 0.05%. The dosages of hydroxylamine hydrochloride had no effect on the physical properties of natural rubber.
作者
岩利
姜士宽
徐荣
张桂梅
邹建云
YAN Li, JIANG Shikuan, XU Rong, ZHANG Guimei, ZOU Jianyun(Yunnan Institute of Tropical Crops, Jinghong 666100, China)
出处
《热带农业科技》
2018年第3期19-22,共4页
Tropical Agricultural Science & Technology
基金
云南省科技院所技术开发项目(2015DC013)
关键词
天然橡胶
盐酸羟胺
理化性能
硫化特性
物理机械性能
natural rubber
hydroxylamine hydrochloride
physical properties
curing characteristics
mechanical properties
