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EFFECTS OF INORGANIC OXIDES ON POLYMER BINDER BURNOUT .1. POLY(VINYL BUTYRAL)

机译:无机氧化物对聚合物粘合剂爆裂的影响1。聚乙烯(乙烯基)

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摘要

The effects of silica, mullite, alpha-alumina, and gamma-alumina on the nonoxidative thermal degradation of poly(vinyl butyral) are described. To varying degrees, all of the inorganic oxides catalyzed reactions that produced butanal. Other significant products included: water, butenal, acetic acid, and alkyl aromatics. Two distinct evolution steps were detected for samples containing mullite and alpha-alumina, suggesting that multiple interactions existed between these oxides and the polymer. The relative amounts of volatile aromatic products evolved by heating polymer/oxide samples were greater than the amounts generated from the neat polymer. For the polymer/gamma-alumina sample, carboxylate species were detected on oxide surfaces above 250 degrees C, indicating that a reaction between the polymer and gamma-alumina occurred. (C) 1996 John Wiley & Sons, Inc. [References: 32]
机译:描述了二氧化硅,莫来石,α-氧化铝和γ-氧化铝对聚乙烯醇缩丁醛的非氧化热降解的影响。所有的无机氧化物都在不同程度上催化产生丁醛的反应。其他重要产品包括:水,丁醛,乙酸和烷基芳烃。对于包含莫来石和α-氧化铝的样品,检测到两个不同的演化步骤,表明这些氧化物与聚合物之间存在多种相互作用。通过加热聚合物/氧化物样品产生的挥发性芳族产物的相对量大于从纯聚合物中产生的量。对于聚合物/γ-氧化铝样品,在高于250℃的氧化物表面上检测到羧酸盐种类,表明在聚合物和γ-氧化铝之间发生了反应。 (C)1996 John Wiley&Sons,Inc. [参考:32]

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