• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Structure and Properties of Closed-Cell Foam Prepared from Irradiation Crosslinked Silicone Rubber
【24h】

Structure and Properties of Closed-Cell Foam Prepared from Irradiation Crosslinked Silicone Rubber

机译：辐照交联硅橡胶制备闭孔泡沫的结构与性能

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

Silicone rubber foam was prepared through crosslinking with electron beam irradiation and foaming by the decomposing of blowing agent azobisformamide (AC) in hot air. The crosslinking and foaming of silicone rubber was carried out separately, which was different from the conventional method of chemical crosslinking and foaming. After foaming, the silicone rubber foam was irradiated again to stabilize the foam structure and further improve its mechanical properties. The effects of irradiation dose before and after foaming, and the amount of blowing agents on the structure and properties of silicone rubber foam were studied. The experimental results show that with the increase of AC content, the average cell diameter of silicone rubber foam increases a little, the foam density decreases to a minimum value when AC content is 10 phr. With the increase of irradiation dose before foaming from 10 to 17.5 kGy, the cell nucleation density of silicone rubber foam increases, the average cell diameter decreases, and the foam density increases. With the increase of irradiation before foaming, the tensile strength, tensile modulus, and the elongation at break of the silicone rubber foam increase. Through irradiation crosslinking again after foaming, the foam density is decreased and the mechanical properties of silicone foam are further improved.
机译：通过与电子束辐射交联并通过在热空气中分解发泡剂偶氮二甲酰胺（AC）发泡来制备硅橡胶泡沫。硅橡胶的交联和发泡分别进行，这与常规的化学交联和发泡方法不同。发泡后，再次照射硅橡胶泡沫以稳定泡沫结构并进一步改善其机械性能。研究了发泡前后的辐照剂量，发泡剂用量对硅橡胶泡沫结构和性能的影响。实验结果表明，随着AC含量的增加，硅橡胶泡沫的平均泡孔直径略有增加，当AC含量为10 phr时，泡沫密度降低至最小值。随着发泡前照射剂量从10 kGy增加到17.5 kGy，硅橡胶泡沫的泡孔成核密度增加，平均泡孔直径减小，泡沫密度增加。随着发泡前照射的增加，硅橡胶泡沫的拉伸强度，拉伸模量和断裂伸长率增加。通过在发泡之后再次进行辐射交联，降低了泡沫密度并且进一步改善了有机硅泡沫的机械性能。

著录项

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