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[1]尹力,谈金祝,王超,等.SiO2/CaCO3复合补强剂对PEMFC垫片材料力学性能的影响[J].南京工业大学学报(自然科学版),2020,42(01):74-80.[doi:10.3969/j.issn.1671-7627.2020.01.011]
 YIN Li,TAN Jinzhu,WANG Chao,et al.Effects of SiO2/CaCO3 composite reinforcing agents on mechanical properties of gasket material for proton exchange membrane fuel cell[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2020,42(01):74-80.[doi:10.3969/j.issn.1671-7627.2020.01.011]
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SiO2/CaCO3复合补强剂对PEMFC垫片材料力学性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
42
期数:
2020年01期
页码:
74-80
栏目:
出版日期:
2020-01-13

文章信息/Info

Title:
Effects of SiO2/CaCO3 composite reinforcing agents on mechanical properties of gasket material for proton exchange membrane fuel cell
文章编号:
1671-7627(2020)01-0074-07
作者:
尹力谈金祝王超董韵炜赵剑峰
南京工业大学 机械与动力工程学院,江苏 南京 211800
Author(s):
YIN Li TAN Jinzhu WANG Chao DONG Yunwei ZHAO Jianfeng
College of Mechanical and Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
质子交换膜燃料电池 复合补强剂 垫片材料 力学性能
Keywords:
proton exchange membrane fuel cell composite reinforcing agent gasket material mechanical properties
分类号:
TQ333.93
DOI:
10.3969/j.issn.1671-7627.2020.01.011
文献标志码:
A
摘要:
补强剂对质子交换膜燃料电池(PEMFC)垫片材料的力学性能至关重要。选用甲基乙烯基硅橡胶生胶作基础胶,以气相法SiO2和纳米CaCO3作复合补强剂制备硅橡胶垫片材料。通过改变补强体系中m(SiO2):m(CaCO3),研究SiO2/CaCO3复合补强剂对PEMFC垫片材料力学性能的影响。实验结果表明:在CaCO3质量相同且羟基硅油质量随补强剂总质量等比例变化的条件下,随着m(SiO2)的增加,垫片材料的拉伸强度和硬度升高,但压缩永久变形和压缩应力松弛随之增大; 在m(SiO2)相同且羟基硅油质量随补强剂总质量等比例变化的条件下,随着m(CaCO3)的增加,垫片材料的拉伸强度和硬度降低,而压缩永久变形和压缩应力松弛随之减小。当m(SiO2):m(CaCO3)为30:10时,垫片材料的拉伸强度达到4.93 MPa,压缩永久变形为5.3%(25 ℃、72 h),压缩应力松弛为7.4%(25 ℃、24 h),此时垫片材料的拉伸强度、硬度、压缩永久变形和应力松弛等综合力学性能相对较好。
Abstract:
Reinforcing agent is critical to the mechanical properties of gasket material for proton exchange membrane fuel cell(PEMFC). Methyl vinyl silicone rubber was selected as the base rubber, gas phase silica and nano CaCO3 were selected as composite reinforcing agents to fabricate the silicone rubber gasket material for PEMFC. The various mass ratios of gas phase silica to nano CaCO3 in the reinforcing system were used to study the effects of SiO2/CaCO3 composite reinforcing agents on mechanical properties of gasket material for PEMFC. Results showed that the tensile strength and hardness of the gasket material increased with the increase of SiO2 mass,under the condition of same CaCO3 mass and the mass of hydroxyl silicone oil varied with the total mass of reinforcing agent, while the compression set and compression stress relaxation also increased; the tensile strength and hardness of the gasket material decreased with the increase of CaCO3 mass,under the condition of same SiO2 mass and the mass of hydroxyl silicone oil varied with the total mass of reinforcing agent, while the compression set and compression stress relaxation also decreased. When the mass ratio of gas phase silica to nano CaCO3 was 30:10,the tensile strength of the gasket material was 4.93 MPa,the compression set was 5.3%(25 ℃、72 h)and the compression stress relaxation was 7.4%(25 ℃,24 h), the comprehensive properties(i.e. tensile strength, hardness, compression set and compression stress relaxation)of the gasket material were better, compared with those at the other mass ratios of the gas phase silica to nano CaCO3.

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备注/Memo

备注/Memo:
收稿日期:2019-09-27
基金项目:国家自然科学基金(51175241); 江苏省大学生创新创业训练计划(201910291064Z)
作者简介:尹力(1992—),男,E-mail:1403075920@qq.com; 谈金祝(联系人),教授,E-mail:tjznjut@njtech.edu.cn.
引用格式:尹力,谈金祝,王超,等.SiO2/CaCO3复合补强剂对PEMFC垫片材料力学性能的影响[J].南京工业大学学报(自然科学版),2020,42(1):74-80.
YIN Li, TAN Jinzhu, WANG Chao, et al. Effects of SiO2/CaCO3 composite reinforcing agents on mechanical properties of gasket material for proton exchange membrane fuel cell[J].Journal of Nanjing Tech University(Natural Science Edition),2020,42(1):74-80..
更新日期/Last Update: 2020-01-30