Effect of environmentally friendly polyetherester plasticizer on properties of hydrogenated nitrile rubber
Three kinds of polyether ester plasticizers with different esterification rates(named AAGEA,AAGEB and AAGEC)were prepared with adipic acid and alcohol ether,and compared with dibutyl diglyceryl adipate(TP-95)and dioctyl azabate(DOS)plasticizers,and added to hydrogenated nitrile butadiene rubber.The effects of these five plasticizers on the properties of hydrogenated nitrile butadiene rubber were explored.The results show that with the increase of esterification rate,the cross-linking density of polyether ester plasticizer rubber decreases first and then increases,the processing safety decreases,the vulcanization speed accelerates,the tensile elongation increases first and then decreases,the tensile strength decreases first and then increases,and the cold resistance decreases first and then increases.The tensile strength of DOS compound before and after aging is the highest,but the elasticity and impact resistance at low temperature are the worst.AAGEB compound has the best elasticity and lowest strength before aging,but the deformation recovery at low temperature is the worst.The plasticizer AAGEA rubber compound has the best aging resistance and cold resistance,and the mechanical properties are medium.In summary,the plasticizer AAGEA compound has the best performance.
polyether ester plasticizerhydrogenated nitrile rubberphysical and mechanical propertycold resistance
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