• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy and Buildings >Preparation and characterization of polymer matrix passive cooling materials with thermal insulation and solar reflection properties based on porous structure
【24h】

Preparation and characterization of polymer matrix passive cooling materials with thermal insulation and solar reflection properties based on porous structure

机译：基于多孔结构的热绝缘和太阳反射特性的聚合物基质无源冷却材料的制备与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Porous polymer materials achieve thermal insulation and solar reflection property at the same time because of their own porous structure, which makes the passive cooling property more superior so as to reduce the indoor temperature more effectively and achieve the purpose of energy saving. In this study, the pore structure was constructed in polyvinyl chloride (PVC) matrix by chemical etching with calcium carbonate (CaCO3) particles as pore template. The effects of porosity on the structure and properties of PVC porous films were studied. The thermal insulation performance of PVC porous films improves with the increase of porosity, which is better than that of PVC films and PVC/CaCO3 composite films. The thermal conductivity of sample with the porosity of 67 v% is 0.0868 Wm K-1(-1) . The total solar reflectance of sample 67 v% is 96.34%, which is 454.9% higher than that of PVC films. Although the thermal emissivity from 3 to 5 mu m of PVC porous films is decreased, it still remains at a high level about 0.83 in the whole infrared region. In temperature test, the final temperature of sample with the porosity of about 67 v% is only 25.2 degrees C, 23.8 degrees C lower than that of PVC films, and 1.2 degrees C higher than the room temperature. The cooling property of PVC/titanium dioxide (TiO2) composite films with 10 v% TiO2 was also measured for comparation, and the final temperature is 29.1 degrees C, which is between that of samples with porosity of about 20 v% and 33 v%. The PVC porous material prepared in this study has the advantages of low thermal conductivity, good solar reflectance and simple preparation, which has potential application prospects in the field of passive cooling materials. (C) 2020 Elsevier B.V. All rights reserved.
机译：由于自己的多孔结构，多孔聚合物材料同时实现隔热和太阳能反射性能，这使得被动冷却性能更加优越，从而更有效地降低室内温度并达到节能的目的。在该研究中，通过用碳酸钙（CaCO 3）颗粒作为孔模板，在聚氯乙烯（PVC）基质中以聚氯乙烯（PVC）基质构建。研究了孔隙率对PVC多孔膜的结构和性质的影响。 PVC多孔膜的绝热性能随着孔隙率的增加而改善，其优于PVC膜和PVC / CACO3复合膜的孔隙率。具有67 V％的孔隙率的样品的导热率为0.0868wm k-1（-1）。样品的总太阳能反射率为67 V％为96.34％，比PVC薄膜高454.9％。尽管从3至5μm的PVC多孔膜的热发射率降低，但在整个红外区域仍保持在约0.83的高水平。在温度测试中，具有约67V％的孔隙率的样品的最终温度仅为25.2℃，比PVC薄膜的薄膜低23.8℃，比室温高1.2℃。还测量了PVC /二氧化钛（TiO 2）复合膜的冷却特性，测量了10V％TiO 2的比较，最终温度为29.1℃，这在孔隙率为约20V％和33 V％之间的样品之间。本研究中制备的PVC多孔材料具有低导热性，良好的太阳能反射和简单准备的优点，具有潜在的被动冷却材料领域的应用前景。 （c）2020 Elsevier B.v.保留所有权利。

著录项

  • 来源
    《Energy and Buildings》 |2020年第10期|110361.1-110361.12|共12页
  • 作者

    Tao Yiyi; Mao Zepeng; Yang Zhangbin; Zhang Jun;

  • 作者单位

    Nanjing Tech Univ Coll Mat Sci & Engn Dept Polymer Sci & Engn Nanjing 211816 Peoples R China|Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Mat Sci & Engn Dept Polymer Sci & Engn Nanjing 211816 Peoples R China|Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Mat Sci & Engn Dept Polymer Sci & Engn Nanjing 211816 Peoples R China|Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Mat Sci & Engn Dept Polymer Sci & Engn Nanjing 211816 Peoples R China|Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct Nanjing 211816 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polymer porous material; Polyvinyl chloride; Solar reflectance; Thermal insulation; Passive cooling material;

    机译：聚合物多孔材料;聚氯乙烯;太阳能反射;保温;被动冷却材料;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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