国产钕系异戊橡胶的性能研究

研究国产钕系异戊橡胶（Nd-IR）的性能，并与天然橡胶（NR）和俄罗斯钛系异戊橡胶（牌号SKI-3）进行对比。结果表明：NR生胶及其炭黑混炼胶的应力-应变曲线有拉伸诱导结晶现象，而Nd-IR生胶及其炭黑混炼胶均未出现拉伸诱导结晶现象。Nd-IR硫化胶的应力-应变曲线变化趋势与NR和SKI-3相近，当应变低于600%时，其应力稍大于SKI-3。与SKI-3相比，Nd-IR生胶及其炭黑混炼胶和硫化胶的物理性能差别不大。适当增大促进剂用量能够使Nd-IR硫化胶的物理性能与NR硫化胶相近。;The properties of domestic neodymium polyisoprene rubber（Nd-IR） were investigated，and compared with those of natural rubber（NR） and Russian titanium polyisoprene rubber（SKI-3）.The results showed that，NR and its carbon black filled compound possessed strain-induced crystallization phenomenon，but the Nd-IR and its carbon black filled compound didn’t have that.The shape of the tensile stress-strain curve of Nd-IR vulcanizate was similar to that of vulcanized NR and Russian SKI-3.When the strain level was less than 600%，the stress of Nd-IR vulcanizate was slightly higher than that of Russian SKI-3 vulcanizate.The physical properties of Nd-IR and its carbon black filled compound and vulcanizate were similar to those of Russian SKI-3.The physical properties of Nd-IR vulcanizate could be similar to NR vulcanizate by appropriately increasing the addition level of accelerator