摘要
将自制的甲基丙烯酸锌[(Zn(MAA)2]与丁腈橡胶 (NBR)共混 ,采用就地反应的方法制备了NBR/Zn(MAA)2 合金。研究了不同Zn(MAA)2 用量时NBR/Zn(MAA)2 的力学性能。结果表明 ,随着Zn(MAA)2 用量的增大 ,合金的力学性能显著提高 ,以Zn(MAA)2 用量为40～60份(质量份)时为最佳。傅里叶变换红外光谱和扫描电镜分析表明 ,在硫化过程中 ,Zn(MAA)2 与NBR发生了接枝和共交联反应 ,形成离子键桥键。随着体系中Zn(MAA)2 用量的增大 ,Zn(MAA)2 均聚物由分散相逐渐变成连续相网络 ,从而使合金的力学性能得以显著提高。
NBR/ z inc methacrylate [Zn (MAA) 2] alloy was prepared by blending NBR with Zn(MAA)2 by in situ reaction.The mechanical properties of different Zn(MAA)2 loading of NBR/ Zn(MAA)2 alloy were studied.The results showed that with the increase of Zn(MAA)2 loading,the mechanical property of NBR/ Zn(MAA)2 alloy increased greatly and reached peak value between 40～60 phr of Zn(MAA)2 loading. FTIR and SEM analyses indicated that crosslinking reaction between Zn(MAA)2 and NBR might occured during the curing process,and metallic bridge bond between them was formed.With the increase of Zn(MAA)2 loading, the phase state of Zn(MAA)2 homopolymer transformed from disperse phase to continuous phase in alloy system, thus greatly enhanced the mechanical property of NBR/ Zn(MAA)2 alloy.
出处
《合成橡胶工业》
EI
CAS
CSCD
2000年第2期107-110,共4页
China Synthetic Rubber Industry
