丁腈橡胶复合材料的制备与性能

Preparation and Properties of Nitrile Rubber Composite

通过物理共混法制备出各组分分散均匀的丁腈橡胶复合材料,研究了硫化剂、防老剂、耐寒增塑剂的种类及用量对丁腈橡胶复合材料性能的影响。结果表明:当防老剂体系为4010NA/RD/AW/NBC/石蜡,用量分别为1,1,1.5,2,1质量份时,丁腈橡胶复合材料具有优异的耐热空气和耐臭氧老化性能;当耐寒增塑剂为DOA且其用量为6质量份时,丁腈橡胶复合材料具有良好的耐低温和耐油老化性能;采用复合硫化体系DCP/S/DM/CZ且用量分别为2.5,0.5,0.3,0.5质量份时,丁腈橡胶复合材料的耐热空气老化和耐低温性能较好;当NBR(35%)/NBR(26%)、ZnO、SA、N550、S、DM、CZ、DCP、DOA、4010NA、RD、NBC、AW、石蜡的加入量分别为50/50,5,1.5,60,0.5,0.3,0.5,2.5,6,1.5,1,1,1.5,1质量份时,丁腈橡胶复合材料具有优异的综合性能。

The nitrile rubber composites with component dispersed uniformly was prepared by physical blending method.The effect of vulcanizing agent,antioxidant and cold-resistant plasticizer on the properties of nitrile rubber composite was studied.The results show that when the antioxidant system was 4010NA/RD/AW/NBC/paraffin and dosages were 1,1,1.5,2,1phr,respectively,nitrile rubber composite had excellent hot air and ozone aging resistance.When the cold-resistant plasticizer was DOA and its dosage was 6phr,nitrile rubber composite had excellent low temperature resistance and good oil resistance.When the compound vulcanization system DCP/S/DM/CZ was used and dosages were 2.5,0.5,0.3,0.5phr,respectively,nitrile rubber composite had better hot air aging resistance and low temperature resistance.When the dosages of NBR（35%）/NBR（26%）,ZnO,SA,N550,S,DM,CZ,DCP,DOA,4010 NA,RD,NBC,AW,paraffin were 50/50,5,1.5,60,0.5,0.3,0.5,2.5,6,1.5,1,1,1.5,1phr,nitrile rubber composites had the excellent comprehensive properties.