采用常规硫化体系(CV)、半有效硫化体系(SEV)和有效硫化体系(EV)制备了不同的NR(天然橡胶)硫化胶。着重探讨了不同硫化胶的微观形貌、200%定伸强度、撕裂强度、拉伸强度、断裂伸长率和交联密度。研究结果表明:SEV硫化胶的微观形貌相对较好,填料能均匀分散在基体中;在其他条件保持不变的前提下,当w(NOBS)=w(硫)=2.0%(相对于NR质量而言)时,相应的未老化SEV硫化胶的撕裂强度(78 kN/m)相对最大;SEV硫化胶的交联密度大于CV硫化胶和EV硫化胶,并且适当增加交联密度能有效提高其综合性能,从而为开发新一代轮胎等复合材料奠定了基础。 Different NR (natural rubber) vulcanizates were prepared using conventional vulcanization (CV), semi-active vulcanization (SEV) and effective vulcanization systems (EV). The microstructures, 200% modulus, tear strength, tensile strength, elongation at break and cross-linking density of different vulcanizates were discussed emphatically. The results show that the microstructure of SEV vulcanizates is relatively good, and the filler can be uniformly dispersed in the matrix. When the content of w (NOBS) = 2.0% (relative to NR (78 kN / m) for the corresponding unaged SEV vulcanizates was higher than that for the unvulcanized SEV vulcanizates. The crosslink density of the SEV vulcanizates was greater than that of the CV vulcanizates and the EV vulcanizates, and the appropriate increase in crosslinking density was effective Improve its overall performance, which laid the foundation for the development of a new generation of tires and other composite materials.