Effect of HNBR Dosage on Mechanical Properties of ACM/HNBR Vulcanizates
The effects of HNBR dosage on the vulcanization properties,dynamic mechanical prop-erties,physical mechanical properties and low temperature resistance of ACM/HNBR vulcanizates were studied.The results showed that when the HNBR dosage exceeded 30 phr,the vulcanization state of the blend could be improved,the storage modulus G could be increased,and the loss factor tanδcould be decreased.Among them,when the dosage of HNBR was 50 phr,compared with pure ACM.the tensile strength before aging was increased by 47.9％,the elongation at break was in-creased by 64.2％,the wear resistance was increased by 30％,the resilience was increased by 88％,and the low temperature resistance was increased by 65％.In addition,the use of HNBR also signifi-cantly improved the stress relaxation resistance of the blend.The tensile properties of the blend after aging were obviously improved.
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