抗静电丁腈橡胶的研究

Abstract

Antistatic nitrile rubber are prepared by adding different kinds of antistatic agent（acetylene carbon black and SN） and different content of antistatic agent.The properties of antistatic,vulcanization characteristics,mechanical properties of the vulcanizates are studied.Results showed that while the adding dosage of acetylene carbon black is 6phr-8phr,the surface and volume conductivity decreased slightly with the increasing of the content of acetylene carbon black;however,when the adding dosage of acetylene carbon black is 8phr-12 phr,the surface and volume conductivity of NBR decreased strictly,if the adding dosage of acetylene carbon black reached 12 phr,the conductivity tended to be stable.The adding dosage of acetylene carbon black has little effect on the curing rate of NBR,the curing rate improved minimally with the increasing of the content of acetylene carbon black,the tensile strength of the composite materials climbed to the top when the adding dosage of acetylene carbon black is 9 phr;the effect of SN content on NBR antistatic is not obvious,4 phr content of SN is suited to the vulcanization process,when SN added for 3 phr,the tensile strength of the composite materials reached to the maximum.