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Preparation and characteristics of nonflammable polyimide materials

机译:preparation and characteristics of nonflammable polyimide materials

摘要

The thermal and flame-retardant properties of homo- and copolyimides were evaluated. Those containing sulfone linkages in the backbone were found to be more flame retardant. Both properties were dependent on the composition. A polyimide/silica nanocomposite was obtained through sol-gel processing. The effects of the addition of silica an the dispersion, interfacial adhesion, fire resistance, mechanical properties, and thermal stability of the composites were investigated. SEM analysis showed a good dispersion of silica with a diameter of 50-300 nm in the organic matrices. The addition of silica increased the fire retardancy and mechanical properties of the composites. (C) 2000 John Wiley & Sons, Inc.
机译:对均聚和共聚酰亚胺的热和阻燃性能进行了评估。发现在主链中包含砜键的那些具有更高的阻燃性。两种性质均取决于组成。通过溶胶-凝胶工艺获得聚酰亚胺/二氧化硅纳米复合材料。研究了添加二氧化硅和分散体,界面粘合性,耐火性,机械性能和复合材料热稳定性的影响。 SEM分析显示出直径为50-300nm的二氧化硅在有机基质中的良好分散。二氧化硅的添加提高了复合材料的阻燃性和机械性能。 (C)2000年John Wiley&Sons,Inc.

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  • 作者

    Liu J; Gao Y; Wang FD; Wu M;

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  • 年度 2000
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