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Mechanical, thermal and dielectric properties of PNBRs/BADCy composites

JING DANG1,2, YUSHENG TANG1,* , SHUANG XU1, XUTONG YANG1, YONGQIANG GUO1, JUNWEI GU1,*

Affiliation

  1. Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an, Shaan Xi 710072, P. R. China
  2. AVIC the First Aircraft Institute, Yanliang, Shaan X i, 710089, P. R. China

Abstract

P owdery nitrile butadiene rubbers (PNBRs) are introduced into the bisphenol A dicyanate ester (BADCy) matrix to fabricate the PNBRs/BADCy compos ites. The mass fraction of PNBRs affecting on the mechanical, heat resistance and dielectric properties of the PNBRs/BADCy composites is investigated, and the addition of PNBRs affecting on the curing reaction of the BADCy is also investigated. Results sho w that b oth flexural strength and impact strength of the PNBRs/BADCy composites are increased firstly, but decreased with excessive addition of PNBRs. Compared with that of pure BADCy, the maximum flexural strength and impact strength of the PNBR s/BADCy composites is increased by 27.8 percent and 49.6 percent, respectively. And the heat resistance and dielectric properties of the PNBRs/BADCy composites are decreased with the increasing addition of PNBRs. Additionally, the addition of PNBRs can eff ectively promote the curing reaction of the BADCy system..

Keywords

Bisphenol A dicyanate ester (BADCy), Powdery nitrile butadiene rubbers (PNBRs) PNBRs), Heat resistance Dielectric properties Curing reaction.

Citation

JING DANG, YUSHENG TANG, SHUANG XU, XUTONG YANG, YONGQIANG GUO, JUNWEI GU, Mechanical, thermal and dielectric properties of PNBRs/BADCy composites, Optoelectronics and Advanced Materials - Rapid Communications, 9, 9-10, September-October 2015, pp.1310-1314 (2015).

Submitted at: Dec. 12, 2014

Accepted at: Sept. 9, 2015