The effect of antioxidant DH on the hot air aging and weathering aging properties of NR,SBR,BR and NR/SBR blend compounds was investigated and a comparative test of DH was made to antioxidants 4020,BLE and RD.

• 研究防老剂DH对NR ,SBR ,BR和NR/SBR并用胶的热空气老化和天候老化的防护作用 ,并与防老剂40 2 0 ,BLE和RD进行对比试验。