Issue 69, 2017, Issue in Progress
From the journal:

RSC Advances

Novel benzimidazole-mediated phthalonitrile/epoxy binary blends system with synergistic curing behavior and outstanding thermal properties†

Jianghuai Hu,a   Rui Sun,a   Yihao Wu,a   Jiangbo Lv,a   Zhiping Wang,a   Ke Zeng ORCID logo *a  and  Gang Yang*a  

* Corresponding authors

a State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
E-mail: zk_ican@sina.com, yanggang65420@163.com
Fax: +86-28-85462736
Tel: +86-28-85462736

Abstract

Binary blends composed of benzimidazole-containing phthalonitrile (PNBI) and epoxy resin E51 were prepared. The PNBI/E51 (PE) blends showed good compatibilities and unique synergistic curing behaviors on full consumption of nitrile groups (PE19, PNBI:E51 = 1 : 9 in weight ratio) and epoxy groups in the view of DSC, rheology and IR. Curing procedures of the PE blends were determined by DSC and DMA. Studies on the curing procedure showed that the PE blends exhibited good processability and could be fully cured at a temperature lower than 210 °C. Studies on the cured PE blends showed that they have excellent thermal and mechanical properties. The glass transition temperatures (Tg) of cured PNBI/E51 blends were higher than 207 °C (obtained by DMA). The 5% weight loss (T5) and char yield at 800 °C (CR) were higher than 360 °C and 14% in nitrogen, respectively (obtained by TGA). Consequently, this study shows a novel modification in the method for the preparation of epoxy or phthalonitrile blend systems.

Graphical abstract: Novel benzimidazole-mediated phthalonitrile/epoxy binary blends system with synergistic curing behavior and outstanding thermal properties

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C7RA06162E
Article type
Paper
Submitted
02 Jun 2017
Accepted
24 Aug 2017
First published
11 Sep 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 43978-43986

Permissions

Request permissions

Novel benzimidazole-mediated phthalonitrile/epoxy binary blends system with synergistic curing behavior and outstanding thermal properties

J. Hu, R. Sun, Y. Wu, J. Lv, Z. Wang, K. Zeng and G. Yang, RSC Adv., 2017, 7, 43978 DOI: 10.1039/C7RA06162E

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements