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Fabrication of CPNBRs/ e poxy c omposites with excellent impact strength, ideal thermal stabilities and dielectric properties

JIN WANG1, LIN TANG1, JUNWEI GU1,* , XUTONG YANG1, YANG LI1, YALAN WU2,*

Affiliation

  1. Department of Applied Chemistry, School of Science, Northwestern P olytechnical University, Xi’an, Shaanxi, 710072, P. R. China
  2. PLA 323 Hospital, Xi’an, Shaanxi, 710054, P. R. China

Abstract

Carboxyl powdery nitrile rubbers (CPNBRs) are blended with bisphenol A epoxy resin (E 51) to produce the corresponding CPNBRs/E 51 compos ites via casting method. The effect s of the percentage mass of the CPNBRs on the impact strength , thermal stabilities and dielectric properties of the CPNBRs/E 51 composites are discussed and investigated. The impact strength of the resulting CPNBRs/E 51 c omposites is found to be optimal with 5 wt% addition of CPNBRs, enhanced from 14.2 kJ/m 2 to 20.8 kJ/m 2 , increased by 46.5%. In addition, the dielectric constant and dielectric loss values of the resulting CPNBRs/E 51 composites are increased slightly, but the thermal stabilities are decreased with the increasing addition of CPNBRs..

Keywords

Epoxy resin, Carboxyl powdery nitrile rubbers (CPNBRs), Mechanical properties, Dielectric properties.

Citation

JIN WANG, LIN TANG, JUNWEI GU, XUTONG YANG, YANG LI, YALAN WU, Fabrication of CPNBRs/ e poxy c omposites with excellent impact strength, ideal thermal stabilities and dielectric properties, Optoelectronics and Advanced Materials - Rapid Communications, 10, 7-8, July-August 2016, pp.574-577 (2016).

Submitted at: Aug. 18, 2015

Accepted at: Aug. 3, 2016