The devulcanizated ground NR with good mechanical properties could be obtained under the conditions of amount of ground rubber 100 phr,cyclohexane 76 phr,ammonia bearing phas.

• 利用酵母提取的含巯基物质作脱硫剂对天然橡胶胶粉定向脱硫,考察了多种影响脱硫效果的因素。