Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers

doi:10.1016/j.cjche.2018.01.008

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (5): 1219-1228.DOI: 10.1016/j.cjche.2018.01.008

• Materials and Product Engineering • Previous Articles Next Articles

Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers

Abdeldjalil Zegaoui, Ruikun Ma, Abdul Qadeer Dayo, Mehdi Derradji, Jun Wang, Wenben Liu, Yile Xu, Wan'an Cai

Institute of Composite Materials, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China

Received:2017-10-16 Revised:2017-11-29 Online:2018-06-29 Published:2018-05-28
Contact: Wenben Liu,E-mail address:liuwenbin@hrbeu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China (51773048), the Natural Science Foundation of Heilongjiang Province (E2016025), and Fundamental Research Funds for the Central Universities (HEUCFP201724, HEUCFP201791).

Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers

Abdeldjalil Zegaoui, Ruikun Ma, Abdul Qadeer Dayo, Mehdi Derradji, Jun Wang, Wenben Liu, Yile Xu, Wan'an Cai

Institute of Composite Materials, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China

通讯作者: Wenben Liu,E-mail address:liuwenbin@hrbeu.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (51773048), the Natural Science Foundation of Heilongjiang Province (E2016025), and Fundamental Research Funds for the Central Universities (HEUCFP201724, HEUCFP201791).

Abstract

Abstract: This present study deals with the reinforcement of thermosetting resin blends composed of cyanate ester (CE) and benzoxazine (BOZ) resins with natural hemp fibers (NHFs). These NHFs were initially treated by using a silane coupling agent (SCA) in order to chiefly enhance their distributions as well as adhesions within the CE/BOZ resin matrix, then incorporated with various weight amounts ranging from 5 wt% to 20 wt% with a regular interval of 5 wt%. The obtained results showed that at the maximum treated fiber loading (20 wt%), distinctive enhancements in the mechanical properties in terms of flexural strength and microhardness were obtained. Besides, the thermal stability and glass transition temperature (T_g) were appreciably enhanced and were higher than those of the pure CE/BOZ resin properties. With respect to the astonishing properties of the NHFs, these enhancements could be possibly due to the good dispersion and adhesion of the treated NHFs inside the CE/BOZ resin achieved upon using the SCA. Therefore, we believe herein that these renewable and cheap NHFs have considerable potential to be used as reinfocer materials for CE/BOZ resin composites to be used in various industrial sectors.

Key words: Cyanate ester, Benzoxazine, Hemp fibers, Thermal stabilities, Mechanical properties

摘要： This present study deals with the reinforcement of thermosetting resin blends composed of cyanate ester (CE) and benzoxazine (BOZ) resins with natural hemp fibers (NHFs). These NHFs were initially treated by using a silane coupling agent (SCA) in order to chiefly enhance their distributions as well as adhesions within the CE/BOZ resin matrix, then incorporated with various weight amounts ranging from 5 wt% to 20 wt% with a regular interval of 5 wt%. The obtained results showed that at the maximum treated fiber loading (20 wt%), distinctive enhancements in the mechanical properties in terms of flexural strength and microhardness were obtained. Besides, the thermal stability and glass transition temperature (T_g) were appreciably enhanced and were higher than those of the pure CE/BOZ resin properties. With respect to the astonishing properties of the NHFs, these enhancements could be possibly due to the good dispersion and adhesion of the treated NHFs inside the CE/BOZ resin achieved upon using the SCA. Therefore, we believe herein that these renewable and cheap NHFs have considerable potential to be used as reinfocer materials for CE/BOZ resin composites to be used in various industrial sectors.

关键词: Cyanate ester, Benzoxazine, Hemp fibers, Thermal stabilities, Mechanical properties

Abdeldjalil Zegaoui, Ruikun Ma, Abdul Qadeer Dayo, Mehdi Derradji, Jun Wang, Wenben Liu, Yile Xu, Wan'an Cai. Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers[J]. Chin.J.Chem.Eng., 2018, 26(5): 1219-1228.

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Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers

Morphological, mechanical and thermal properties of cyanate ester/benzoxazine resin composites reinforced by silane treated natural hemp fibers

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