Study on structure and property of HNBR reinforced by in-situ zinc acrylate

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  • Shenyang University of Chemical Technology,Shenyang 110142

Received date: 2020-01-10

  Revised date: 2021-04-14

  Online published: 2021-09-07

Abstract

Hydrogenated butadiene-acrylonitrile rubber(HNBR) reinforced by zinc acrylate (ZDA) in-situ formed from zinc oxide (ZnO) and acrylic acid (AA).The influence of ZDA on the structure of HNBR was analyzed by FT-IR and SEM.The effects of the molar ratio of ZnO/AA,the theoretical amount of ZDA in-situ formation and the amount of DCP on the modification of HNBR were studied systematically.The results showed that in-situ ZDA reacted ionic covalent bonding in the process of high temperature vulcanization,which was initiated by DCP.The shore A hardness and 100% constant elongation stress of HNBR increased with the increase of ZnO/AA molar ratio,ZDA theoretical in-situ production and DCP content,and the elongation at break decreased constantly,while the tensile strength showed a trend of first increasing,peak value and then decreasing.

Cite this article

Liu Dachen, Tang Xin, Li Siqi . Study on structure and property of HNBR reinforced by in-situ zinc acrylate[J]. New Chemical Materials, 2021 , 49(8) : 182 -185 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.08.038

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