摘要
用门尼黏度仪、凝胶渗透色谱仪和橡胶加工分析仪分析了恒黏剂盐酸羟胺、盐酸氨基脲制备的恒黏天然橡胶生胶的门尼黏度、相对分子质量及其分布和动态力学性能。结果表明,相比于盐酸氨基脲,盐酸羟胺对天然橡胶门尼黏度、相对分子质量及其分布和动态力学性能有更大的影响。盐酸羟胺基恒黏天然橡胶的门尼黏度和相对分子质量均明显低于天然橡胶,弹性模量在低频率范围随频率增大而增加的幅度明显小于天然橡胶,损耗因子随应变的增大明显大于天然橡胶,复数黏度对剪切速率的敏感度小于天然橡胶。
The Mooney viscosity,relative molecular mass and its distribution,dynamic mechanical properties of raw constant viscosity natural rubber prepared with hydroxylamine hydrochloride and semicarbaside hydrochloride as constant viscosity agent were measured with Mooney viscometer,gel permeation chromatograph and rubber processing analyzer,respectively.The results showed that compared to semicarbazide hydrochloride,hydroxylamine hydrochloride had a more significant impact on Mooney viscosity and relative molecular mass of natural rubber.The Mooney viscosity,relative molecular mass of hydroxylamine hydrochloride-based natural rubber were evidendy lower than those of natural rubber,and the increase rate of elastic modulus of the former was less than that of the latter with increasing frequency at lower frequency,the increase rate of lose factor of the former was larger than that of the latter with increasing strain,and the sensitivity of shear rate for complex viscosity of the former was smaller than that of the latter.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2013年第5期369-371,共3页
China Synthetic Rubber Industry
基金
国家自然科学基金资助项目(50963006)
现代农业产业技术体系建设专项资金资助项目(CARS-34-GW 9)
关键词
恒黏天然橡胶
盐酸羟胺
盐酸氨基脲
门尼黏度
相对分子质量
动态力学性能
constant viscosity natural rubber
hydroxylamine hydrochloride
semicarbazide hydrochloride
Mooney viscosity
relative molecular mass
dynamic mechanical property
