电子束辐射预硫化天然橡胶/丁苯橡胶并用体系的研究  

A study on precuring of natural rubber/styrene butadiene rubber by use of electron beams irradiation

作　　者：鲍矛[1] 矫阳[1] 康兴川[1] 陆永俊[1] 李淑凤[1] 曾心苗[1] 

机构地区：[1]北京市射线应用研究中心,北京100012

出　　处：《辐射研究与辐射工艺学报》2008年第1期19-22,共4页Journal of Radiation Research and Radiation Processing

摘　　要：以天然橡胶/丁苯橡胶(Natural rubber/styrene butadiene rubber,NR/SBR)并用体系为基材,采用电子束辐照技术对其进行辐射预硫化,研究了不同吸收剂量下,材料交联度、硫化速度及格林强度的变化趋势,并评价了电子束辐射预硫化对材料最终力学性能的影响。结果表明:NR/SBR并用体系的交联度和格林强度随吸收剂量的增加而提高,热硫化速度基本不受吸收剂量的影响,可实现NR/SBR并用体系的辐射预硫化;辐射预硫化与未辐射预硫化的NR/SBR相比,完全硫化后材料的力学性能相差不大。Natural rubber（NR）/styrene butadiene rubber（SBR） blends was precured by electron beams（EB） irradiation. The crosslinking degree, green strength and heat curing speed of NR/SBR were studied with different absorbed doses. And the effects of EB irradiation precuring on the final mechanical properties were evaluated. The resuits show that the crosslinking degree and green strength of NR/SBR was improved respectively while the heat curing speed was not changed with increasing absorbed doses. The final mechanical properties were not significandy changed between the irradiation precuring and non-irradiation precuring of NR/SBR. The EB irradiation precuring of NR/SBR may be suitable for rubber process.

关 键 词：天然橡胶/丁苯橡胶并用体系 电子束 辐射预硫化 吸收剂量 格林强度 

分 类 号：TQ330.13[化学工程—橡胶工业] TQ330.7