通过对大气压介质阻挡放电处理前后聚丙烯粉体的分子量、差热曲线和红外光谱等的测量分析,研究了空气等离子体对聚丙烯粉体的降解作用.结果表明:空气等离子体处理后聚丙烯粉体的平均分子量减小,出现"双峰"现象;处理后试样的熔点降低;红外透射光谱发生了变化;介质阻挡放电空气等离子体能对有机聚合物产生降解作用.
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