• 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>Polymers >Investigation of the Thermal Conductivity of Resin-Based Lightweight Composites Filled with Hollow Glass Microspheres
【2h】

Investigation of the Thermal Conductivity of Resin-Based Lightweight Composites Filled with Hollow Glass Microspheres

机译：中空玻璃微球填充树脂基轻质复合材料导热系数的研究

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

The design and development of thermal insulation materials is very important for the treatment of offshore oil pipelines. Understanding thermal energy transport in thermal insulation materials and predicting their thermal conductivities have important theoretical and practical value for the design of thermal insulation materials. In this work, lightweight and thermally insulated (LWTI) composites with the desired mechanical strength for offshore oil pipelines applications were prepared using epoxy resin (EP) as the matrix and hollow glass microspheres (HGMs) as the filler. The morphology, density, and mechanical properties of HGM/EP LWTI composites were studied first. The flexural strength and the flexural modulus of HGM/EP LWTI composites could still be as high as 22.34 ± 2.75 Mpa and 1.34 ± 0.03 GPa, respectively, while the density was only 0.591 g/cm . The relationship between the effective thermal conductivity of HGM/EP LWTI composites and material parameters (sizes and contents together) has been studied systematically. A three-phase prediction model was built using the self-consistent approximation method to predict the effective thermal conductivity of HGM/EP LWTI composites, and the resin matrix, the wall thickness, the HGM particle size, and other parameters (such as air) were fully considered during the derivation of this three-phase thermal conductivity model. Finally, the insulation mechanism of HGM/EP LWTI composites was systematically analyzed. The thermal conductivities of HGM/EP LWTI composites with different diameters and HGM contents calculated by the three-phase prediction model agreed well with the experimental test results, with a minimum error of only 0.69%. Thus, this three-phase thermal conductivity model can be used to theoretically simulate the thermal conductivity of epoxy resin-based LWTI composites and can be the theoretical basis for the design and prediction of the thermal conductivity of other similar hollow spheres filled materials.
机译：保温材料的设计和开发对于海上石油管道的处理非常重要。了解绝热材料中的热能传递并预测其热导率对绝热材料的设计具有重要的理论和实用价值。在这项工作中，使用环氧树脂（EP）作为基质和中空玻璃微球（HGMs）作为填料，制备了具有理想海洋机械应用所需机械强度的轻质和隔热（LWTI）复合材料。首先研究了HGM / EP LWTI复合材料的形貌，密度和力学性能。 HGM / EP LWTI复合材料的弯曲强度和弯曲模量仍可以分别高达22.34±2.75 Mpa和1.34±0.03 GPa，而密度仅为0.591 g / cm。系统研究了HGM / EP LWTI复合材料的有效导热系数与材料参数（尺寸和含量）的关系。使用自洽近似方法建立了一个三相预测模型，以预测HGM / EP LWTI复合材料的有效热导率，树脂基体，壁厚，HGM粒径和其他参数（例如空气）在推导该三相热导率模型时已充分考虑了这些因素。最后，系统地分析了HGM / EP LWTI复合材料的绝缘机理。通过三相预测模型计算出的不同直径和HGM含量的HGM / EP LWTI复合材料的热导率与实验测试结果吻合良好，最小误差仅为0.69％。因此，该三相导热系数模型可用于理论上模拟环氧树脂基LWTI复合材料的导热系数，并可作为设计和预测其他类似空心球填充材料的导热系数的理论基础。

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