Modification of chitosan-based membrane with epoxidized natural rubber for PEMFC application

IF 1.2 4区化学 Q4 POLYMER SCIENCE

Journal of Rubber Research Pub Date : 2023-08-07 DOI:10.1007/s42464-023-00215-5

Anuchit Wichianchom, Wirach Taweepreda, Qamber Ali, Arthanareeswaran Gangasalam

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Abstract

Chitosan is considered one of the most promising materials for polymer electrolyte membrane fuel cells (PEMFC) due to the high manufacturing cost of the commercial polymer electrolyte membrane (PEM). In this study, chitosan (C-1), chloroacetate chitosan (CCS-21), epoxidized natural rubber (ENR-41), chitosan blended with ENR (CE-6 and CE-7), and chloroacetate chitosan blended with ENR (CCE-26 and CCE-27) based membranes were prepared by solution casting technique and crosslinked with acid and base. The Fourier transform infrared (FTIR) spectroscopy results showed improvements in their peaks, and the atomic force microscopy revealed that the blended membranes had a higher surface roughness than the other membranes. The optical contact angle (OCA) showed that the C-1 had the highest contact angle, while the ENR-41 had the least contact angle. From the electrical measurements, the CCS-21 gave the highest capacitance, conductance, and conductivity. The CE-7 showed the highest resistance and resistivity while ENR-41 showed the highest dissipation factor and dielectric constant. Taken together, CE-7 showed the most suitable characteristics which makes it suitable for use as a PEM.

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环氧化天然橡胶改性壳聚糖膜用于PEMFC

壳聚糖被认为是最有前途的聚合物电解质膜燃料电池（PEMFC）材料之一，因为商用聚合物电解质膜（PEM）的制造成本很高。本研究采用溶液浇铸技术制备了壳聚糖（C-1）、氯乙酸壳聚糖（CCS-21）、环氧化天然橡胶（ENR-41）、与ENR共混的壳聚糖（CE-6和CE-7）以及与ENR（CCE-26和CCE-27）共混的氯乙酸壳多糖基膜，并进行了酸碱交联。傅立叶变换红外光谱（FTIR）结果显示它们的峰有所改善，原子力显微镜显示混合膜比其他膜具有更高的表面粗糙度。光学接触角（OCA）显示C-1具有最高的接触角，而ENR-41具有最小的接触角。从电学测量结果来看，CCS-21给出了最高的电容、电导和电导率。CE-7的电阻和电阻率最高，而ENR-41的损耗因子和介电常数最高。总之，CE-7显示出最合适的特性，使其适合用作PEM。

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来源期刊

Journal of Rubber Research 化学-高分子科学

自引率

15.40%

发文量

审稿时长

3 months

期刊介绍： The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science. The Journal of Rubber Research welcomes research on: the upstream, including crop management, crop improvement and protection, and biotechnology; the midstream, including processing and effluent management; the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory; economics, including the economics of rubber production, consumption, and market analysis. The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines. Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.