GDP/D-GDP化学结构与力学性能的研究

利用低压等离子体增强化学气相沉积技术制备碳氢辉光放电聚合物(GDP)和全氘代辉光放电聚合物(D-GDP)薄膜。利用表面轮廓仪、傅里叶红外光谱仪和纳米压痕技术对制备的样品进行表征,讨论了GDP/D-GDP薄膜的沉积速率、化学结构和力学性能在ICF物理实验用靶应用中的优缺点。结果表明:GDP/D-GDP薄膜的沉积速率都随反应气体流量比例近线性增加,GDP的沉积速率达到2.6μm,D-GDP的沉积速率达到1μm,GDP的沉积速率远大于D-GDP的沉积速率;D-GDP薄膜内部的交联化程度较弱,D-GDP更有利于靶丸内燃料的红外均化;GDP的力学性能明显优于D-GDP,更有利于ICF物理实验用靶的燃料填充与装配操作。

Chemical structure and mechanical properties of glow discharge polymer films and deuterated glow discharge polymer films

Taking advantage of low pressure plasma chemical vapor deposition technology, the hydrocarbon glow discharge polymer (GDP) and deuterated glow discharge polymer (D-GDP) films were fabricated by glow discharge polymerization technology. The deposition rates, the chemical structures and mechanical properties of films were studied by FTIR spectra, surface profiler and nano-indentation. The results show that the deposition rate of GDP/D-GDP almost linearly increases with the increase of gas flow, the deposition rate of GDP films is higher than that of D-GDP films. The cross-link degree of D-GDP films is lower than that in GDP films. The D-GDP films might be more favorable for IR heating on the DT ice of ICF target. The mechanical property of GDP is better than that of D-GDP.