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>Effects of tetraamine crosslinking agents on the thermomechanical properties of PMR polyimide composites
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Effects of tetraamine crosslinking agents on the thermomechanical properties of PMR polyimide composites
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机译:四胺交联剂对PMR聚酰亚胺复合材料热力学性能的影响
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摘要
The effects were investigated of partial substitution of tetraamine crosslinking agents for diamine reactants on the thermomechanical properties of PMR polyimide resins and graphite fiber-reinforced composites. The effect of tetraamine content on isothermal weight loss, glass transition, and softening temperatures of neat resin samples is discussed. Composites were fabricated using PMR methodology. Monomeric solution of various stoichiometric ratios was used to impregnate Hercules HTS graphite fiber. The mechanical property retention characteristics of the composites at 316 C (600 F) are described.
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