THE RADIATION EFFECTS ON POLYMETHYL VINYL SILOXANE FOAM

HUANG Wei; FU Yibei; WANG Chaoyang; XU Yunshu; XING Peifeng; WANG Heyi

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THE RADIATION EFFECTS ON POLYMETHYL VINYL SILOXANE FOAM

更新时间：2023-04-26

- THE RADIATION EFFECTS ON POLYMETHYL VINYL SILOXANE FOAM
- Journal of Radiation Research and Radiation Processing Vol. 19, Issue 2, Pages: 99-104(2001)
- 作者机构：
  
  1.中国工程物理研究院核物理与化学研究所　绵阳 621900
  2.中国工程物理研究院八所　绵阳 621900
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HUANG Wei, FU Yibei, WANG Chaoyang, et al. THE RADIATION EFFECTS ON POLYMETHYL VINYL SILOXANE FOAM. [J]. Journal of Radiation Research and Radiation Processing 19(2):99-104(2001)
DOI：

HUANG Wei, FU Yibei, WANG Chaoyang, et al. THE RADIATION EFFECTS ON POLYMETHYL VINYL SILOXANE FOAM. [J]. Journal of Radiation Research and Radiation Processing 19(2):99-104(2001) DOI：

摘要

研究了室温下空气、真空或惰性气氛中,60,Co γ射线对柔性开孔型甲基乙烯基硅橡胶泡沫的辐射效应。采用傅立叶红外分析仪、扫描电镜、裂解色谱—质谱联用仪以及热失重分析仪等，对辐照前后的样品进行了分析。同时，使用色质联用仪对辐照后产生的气体进行了分析，并且测定了室温下试样的压缩性能、应力松弛率与吸收剂量的关系。结果表明，化学交联后的硅泡沫材料在低剂量（2×10,5,Gy）下发生了第2次交联，但随剂量的进一步提高，则以辐射降解为主。经不同剂量辐照以后，试样的力学性能有所改变。

Abstract

At the room temperature,the radiation effects on polymethyl vinyl siloxane (PMVS) foam were studied in the atmosphere of air,vacuum or inert gas through ,60,Co ,γ, ray radiation. The unirradiated and irradiated samples were analyzed by FTIR,SEM, PGC/MS and TG. At the same time the gas products after radiation were analyzed by GC/MS. The relationship of compression property and stress relaxation ratio with the radiation dose were determined. The results show that the second crosslinking in the PMVS after chemical crosslinking take place at a low dose (2×10,5,Gy) , but the radiation degradation is predominant when the dose raising. The mechanical property of samples is changed after low dose irradiation.

关键词

甲基乙烯基硅橡胶泡沫压缩性能应力松弛率辐射效应

Keywords

Polymethyl vinyl siloxane foamCompression propertyStress relaxation ratioRadiation effects

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