• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Exposure of Glass Fiber Reinforced Polymer Composites in Seawater and the Effect on Their Physical Performance
【2h】

Exposure of Glass Fiber Reinforced Polymer Composites in Seawater and the Effect on Their Physical Performance

机译：玻璃纤维增​​强聚合物复合材料在海水中的暴露及其对物理性能的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An innovative testing methodology to evaluate the effect of long-term exposure to a marine environment on Glass Fiber Reinforced Polymers (GFRPs) has been investigated and is presented in this paper. Up to one-year ageing was performed in seawater, to simulate the environment for offshore oil and gas applications. The performance of an epoxy and epoxy-based GFRP exposed at different temperatures from 25 to 80 °C was quantified. The materials were also aged in dry air, to de-couple the thermal effect from the seawater chemical action. Gravimetric testing and Dynamic Mechanical Analysis (DMA) were conducted in parallel on progressively aged specimens. The effect of specimen geometry and the anisotropic nature of diffusion are comprehensively discussed in this paper. For the quasi-infinite specimens, the results show an exponential increase in the seawater absorption rate with temperature. The methodology allowed for the prediction of the diffusivity at a temperature of 4 °C as 0.23 and 0.05 × 10−13 m2/s for the epoxy and the epoxy-based composite, respectively. The glass transition temperature reduces as sea water is absorbed, yet the sea water effects appear to be reversible upon drying.
机译：本文研究了一种创新的测试方法，以评估长期暴露于海洋环境对玻璃纤维增​​强聚合物（GFRP）的影响。在海水中进行长达一年的老化，以模拟海上油气应用的环境。定量了在25至80°C的不同温度下暴露的环氧和环氧基GFRP的性能。这些材料还在干燥的空气中老化，以使热效应与海水化学作用脱钩。重量测试和动态力学分析（DMA）在逐渐老化的试样上并行进行。本文全面讨论了试样几何形状的影响和扩散的各向异性。对于准无限样本，结果表明海水吸收率随温度呈指数增长。该方法可以预测环氧树脂和基于环氧树脂的4°C温度下的扩散率为0.23和0.05×10 −13 m 2 / s复合。随着海水的吸收，玻璃化转变温度降低，但是海水作用在干燥时似乎是可逆的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号