玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (3): 70-74.

• 应用研究 • 上一篇    下一篇

储存期对聚甲基丙烯酰亚胺(PMI)泡沫性能的影响研究

李克迪1,方勇1,胡爱军2*,徐时彧3   

  1. 1.浙江中科恒泰新材料科技有限公司,绍兴312369;
    2.中国科学院化学研究所,北京100190;
    3.浙江大学城市学院,杭州310015
  • 收稿日期:2015-10-08 出版日期:2016-03-28 发布日期:2016-03-28
  • 通讯作者: 胡爱军(1966-),女,硕士,高级工程师,主要研究方向为聚酰亚胺材料。
  • 作者简介:李克迪(1987-),男,硕士,工程师,主要研究方向为PMI泡沫材料。
  • 基金资助:
    863计划项目(2015AA033902)

SHELF LIFE PROPERTY OF POLYMETHACRYLIMIDE (PMI) FOAM CORE

LI Ke-di1, FANG Yong1, HU Ai-jun2*, XU Shi-yu3   

  1. 1.Cashem Advanced Materials Hi-tech Co., Ltd., Shaoxing 312369, China;
    2.Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China;
    3.City College, Zhejiang University, Hangzhou 310015, China
  • Received:2015-10-08 Online:2016-03-28 Published:2016-03-28

摘要: 为合理存储和使用PMI泡沫以发挥其最佳性能,研究了PMI泡沫储存过程的吸潮性能以及吸潮后力学和耐热蠕变性能的变化,发现PMI泡沫在暴露于潮湿空气中的前10d具有最快的吸潮速率,120d时吸潮基本达到饱和;吸潮后的常温压缩强度与干燥时相当,但高温压缩蠕变性能下降明显。探讨了吸潮后干燥对高温压缩蠕变性能的影响。

关键词: 聚甲基丙烯酰亚胺, 储存期, 吸潮, 压缩性能, 拉伸性能, 压缩蠕变

Abstract: In order to realize the best performance of PMI foam under rational storage condition, this paper investigated the moisture absorption performance, the mechanical and thermal creep properties after moisture absorption of PMI foam. It is found that, PMI foam has the fastest absorption rate in the first 15 days after being exposed to humidity air. Moisture absorption saturates after around 120 days. The compression strength after moisture absorption is consistent with the dried one in the room temperature. However, the high temperature compressive creep performance declines significantly. The impact of compressive creep performance after drying was also discussed.

Key words: polymethacrylimide, shelf life, moisture absorption, compression property, tensile property, compressive creep

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