水压和温度联合作用对高分子复合泡沫材料性能的影响

doi:10.19936/j.cnki.2096-8000.20211128.007

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (11): 44-48.DOI: 10.19936/j.cnki.2096-8000.20211128.007

水压和温度联合作用对高分子复合泡沫材料性能的影响

刘刚¹, 屈衍^1,2, 居尔藩¹, 王召², 邹科²

1.台州中浮新材料科技股份有限公司,临海317005;
2.南方科技大学前沿与交叉科学研究院,深圳518055

收稿日期:2021-08-02 出版日期:2021-11-28 发布日期:2021-12-13
作者简介:刘刚(1986-),男,博士,主要从事高分子复合材料方面的研究,gl@cbm-future.com。
基金资助:
国家重点研发计划项目(2019YFC0312200);浙江省重点研发计划项目(2020C01003)

The combined effects of hydrostatic pressure and temperature on the performances of polymer syntactic foams

LIU Gang¹, QU Yan^1,2, JU Er-fan¹, WANG Zhao², ZOU Ke²

1. Taizhou CBM-Future New Materials Science & Technology Co., Ltd., Linhai 317005, China;
2. Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China

Received:2021-08-02 Online:2021-11-28 Published:2021-12-13

摘要/Abstract

摘要： 为研究多环境因素联合作用下高分子复合泡沫材料工作性能的变化,在30 MPa水压和15 ℃~60 ℃不同水温条件下对名义密度为475 kg/m³的材料试样进行了保压试验,并分别测试了保压1 d~30 d后的试样的吸水率、压缩强度和弹性模量。试验结果表明,高分子复合泡沫材料的吸水率随水温和保压时间的增加而增加,其压缩强度随水温和保压时间的增加而减小,其弹性模量在不同水温下随保压时间的变化趋势不同:在较低水温下,其弹性模量随保压时间的增加而增加;在较高水温下,其弹性模量随保压时间的增加而减小。文中分析了水压和温度联合作用下高分子复合泡沫材料性能改变的机理,并得到了压缩强度随吸水率变化的特征。建立了通过对数函数拟合来预测高分子复合泡沫材料长期工作性能的方法。

关键词: 高分子复合泡沫材料, 水压, 水温, 吸水率, 压缩强度, 弹性模量

Abstract: An experimental investigation on the aging of a syntactic foam with a nominal density of 475 kg/m³ was carried out under the combined effects of a hydrostatic pressure of 30 MPa and a variety of water temperatures ranging from 15 ℃~60 ℃. The samples were aged for a variety of time periods ranging from 1 day to 30 days. And their water absorption rate, compressive strength and modulus of elasticity were tested. The results indicate that the water absorption rate of the polymer syntactic foams increases with increasing water temperature and aging time, while their compressive strength decreases with the same environmental factors. Their modulus of elasticity shows different trends under lower and higher water temperatures: It slightly increases with aging time under a relatively low water temperature, but decreases with aging time under the higher water temperature. The mechanisms driving the change of the performances of the syntactic foam under the combined effects of pressure and temperature were analyzed. And a characteristic relationship between the compressive strength and the water absorption rate was shown. A method for the prediction of the long-term performance of the syntactic foam through extrapolation from the short-term test data has also been established.

Key words: polymer syntactic foam, hydrostatic pressure, water temperature, water absorption rate, compressive strength, modulus of elasticity

中图分类号:

TB332

刘刚, 屈衍, 居尔藩, 王召, 邹科. 水压和温度联合作用对高分子复合泡沫材料性能的影响[J]. 复合材料科学与工程, 2021, 0(11): 44-48.

LIU Gang, QU Yan, JU Er-fan, WANG Zhao, ZOU Ke. The combined effects of hydrostatic pressure and temperature on the performances of polymer syntactic foams[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(11): 44-48.

参考文献

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水压和温度联合作用对高分子复合泡沫材料性能的影响

The combined effects of hydrostatic pressure and temperature on the performances of polymer syntactic foams

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