...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Science >Fabrication of cellular and microcellular ceramics with controllable open-cell content from polysiloxane-LDPE blends: I. Compounding and Foaming
【24h】

Fabrication of cellular and microcellular ceramics with controllable open-cell content from polysiloxane-LDPE blends: I. Compounding and Foaming

机译：由聚硅氧烷-LDPE共混物制造具有可控开孔含量的多孔和微孔陶瓷：I.复合和发泡

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

A novel processing route for fabricating cellular and microcellular ceramics with controllable open-cell content has been developed. The proposed strategy for producing cellular and microcellular ceramics involves: (i) development of desired foamable polysiloxane–polyolefin blends by using a compounder element, in which the polyolefin phase is uniformly dispersed in the polysiloxane matrix, (ii) foaming the obtained blends by implementing the thermodynamic instability principle to produce a cellular or microcellular ceramic precursor structure, and (iii) completing the organic–inorganic transition without sacrificing the obtained cellular or microcellular structure and inducing open-channels in the cell walls by burning out the sacrificial dispersed polyolefin phase at elevated temperatures. By controlling the viscosity of the dispersed polyolefin phase, the polyolefin concentration and compounding parameters, the polysiloxane–polyolefin blend morphology can be varied. Furthermore, plus a deliberate control of foaming and pyrolyzing parameters, the foam morphology and open-cell content of produced cellular and microcellular ceramics can be adjusted. In this paper, the technique to get a desired cellular and microcellular ceramic precursor structure is demonstrated. The deliberate pyrolysis technique to complete the organic–inorganic transition and the mechanical properties of the obtained microcellular ceramics will be discussed in another paper.
机译：已经开发出一种新颖的加工路线，用于制造具有可控开孔含量的多孔和微孔陶瓷。提出的生产多孔和微孔陶瓷的策略包括：（i）通过使用一种复合剂来开发所需的可发泡聚硅氧烷-聚烯烃共混物，其中聚烯烃相均匀地分散在聚硅氧烷基体中；（ii）通过实施将所获得的共混物发泡通过热力学不稳定性原理产生细胞或微孔陶瓷前体结构，并且（iii）在不牺牲获得的细胞或微孔结构的情况下完成有机-无机过渡，并通过在牺牲层中烧尽牺牲性分散的聚烯烃相而在细胞壁中诱导开路。高温。通过控制分散的聚烯烃相的粘度，聚烯烃的浓度和混合参数，可以改变聚硅氧烷-聚烯烃共混物的形态。此外，加上对泡沫和热解参数的故意控制，可以调节生产的多孔和微孔陶瓷的泡沫形态和开孔含量。在本文中，展示了获得所需的多孔和微孔陶瓷前体结构的技术。在另一篇论文中将讨论用于完成有机-无机过渡以及获得的微孔陶瓷的机械性能的有意的热解技术。

著录项

  • 来源
    《Journal of Materials Science》 |2007年第8期|2854-2861|共8页
  • 作者

    Chunmin Wang; Jin Wang; Chul B. Park; Young-Wook Kim;

  • 作者单位

    Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial Engineering University of Toronto M5S 3G8 Toronto Ontario Canada;

    Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial Engineering University of Toronto M5S 3G8 Toronto Ontario Canada;

    Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial Engineering University of Toronto M5S 3G8 Toronto Ontario Canada;

    Department of Materials Science and Engineering The University of Seoul Seoul 130-743 Korea;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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