常压等离子体退除PVA浆料机理探讨
首发时间:2005-07-08
摘要:通过常压等离子体处理后PVA失重分析、PVA浆料在水中溶解率的变化、等离子体处理与常用H2O2退浆比较、PVA薄膜XPS和FT-IR分析,讨论常压等离子体对PVA作用的机理。结果表明常压等离子体作用使部分PVA大分子氧化成小分子如CO2,H2O直接消失在空气中,另一部分PVA大分子被氧化降解成分子链较短的分子,提高了其在水中的溶胀、溶解性。
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Probe of Mechanism of Atmospheric Pressure Plasma on PVA
Abstract:On the basis of measuring of PVA weigh loss and dissolving rate in water, comparing between the plasma aided and the traditional H2O2 desizing, XPS and FT-IR analyses of PVA films, the action mechanism of atmospheric pressure plasma on PVA was investigated. Plasma action led some PVA molecules oxidized into some molecules such as CO2,H2O which directly disappeared in the air, whereas anther PVA were oxidized and degradated to smaller ones which were easier swelled and dissolved.
Keywords: Atmospheric pressure plasma, PVA (polyvinyl alcohol), Desizing, Cotton
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No.2403144091120783****
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