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无卤阻燃含磷环氧树脂的研究进展 总被引:1,自引:0,他引:1
叶龙健;钱立军;佟芍朋;许国志 《中国塑料》2010,24(3):11-18
无卤阻燃含磷环氧树脂中的磷成分具有气相和凝聚相的双重阻燃作用,且材料本身降解产物不产生可持续性环境污染物,因而作为环境友好型阻燃材料而被广泛研究。本文综述了近年来关于含9,10-二氢-9-氧杂-10-磷杂菲10-氧化物(DOPO)环氧树脂体系(包含DOPO环氧树脂、DOPO基固化剂和添加型DOPO改性聚合物)、磷酸酯型环氧树脂体系(包括磷酸酯环氧树脂、环状磷酸酯环氧树脂、磷酸酯型固化剂)、含磷固化剂以及磷腈环氧树脂和磷-硅环氧树脂的研究进展,介绍了每种体系的性能特点。总结了含磷环氧树脂的阻燃性能、热性能、阻燃机理,以及磷-氮协同效应、磷-硅复合二元体系的阻燃机理。 相似文献
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电路板用无卤阻燃环氧树脂材料研究进展 总被引:3,自引:0,他引:3
综述了最近电路板用无卤阻燃环氧树脂材料研究开发的进展。主要从环氧树脂、固化剂及添加型阻燃剂三个方面对无卤阻燃环氧树脂材料的研究情况进行了介绍。重点介绍了新型的含磷、含氮、含硅和本征阻燃环氧树脂,作为固化剂的芳香族缩聚磷酸酯、含磷多胺类化合物和改性酚醛树脂,以及磷系、镁一铝系和锑系添加型阻燃剂,并对其发展前景进行了展望。 相似文献
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双酚A型线性酚醛树脂的合成 总被引:8,自引:2,他引:6
本文报导了一种新型耐热性双酚A线性酚醛环氧树脂固化剂的合成,对该固化剂合成过程中的影响因素作了研究,取得了较佳的合成工艺条件,并对其环氧树脂固化物的耐热性能作了初步研究。 相似文献
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介绍了酚醛树脂的耐热改性研究方法以及改性后酚醛树脂应用,耐热改性的方法包括:芳烃改性、焦油改性、聚酰亚胺改性、硼酸改性、有机硅改性、钼酸改性、苯并噁嚓化合物、纳米材料等改性酚醛树脂。 相似文献
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Polymer Bulletin - Depletion of the petroleum resources and poor flame-retardant properties of the epoxy resins drive researchers to develop an epoxy resin with good heat stability from... 相似文献
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The improvement of flame-retardation of thermosetted epoxy–amine resins was attempted by chemically incorporating phosphorus-containing reagents. By reacting 4,4′-diglycidylether of bisphenol A (DGEBA) with dialkyl (or aryl) phosphate, it was possible to chemically modify the epoxy resin and then cure it in the presence of 4,4′-diaminodiphenylsulfone (DDS) to obtain epoxy-amine resin with good flame-retardant and thermal stability behaviors. The quantitative aspect of the addition of dialkyl (or aryl) phosphate onto glycidyle oxiranes was evaluated by elemental analysis of the modified epoxy-amine resins. Flammability and thermal behaviors of modified DGEBA/DDS resins depend on the nature of phosphate groups (the best flame-retardation was observed on resins bearing phenyl phosphate groups) and their concentration in the material. In relation to DGEBA/DDS samples containing additives of the same structure [trialkyl(or aryl) phosphate], cured resins incorporating chemically bonded phosphate groups show a better flame-retardation. On the contrary to the nonomodified DGEBA/DDS [with or without trialkyl (or aryl) phosphate as additive], combustion of modified DGEBA/DDS resins is accompanied by formation of intumescent char. Chemical modification of DGEBA by dialkyl (or aryl) phosphates can be carried out in situ during the curing of epoxy resins without change in the fire behavior. © 1996 John Wiley & Sons, Inc. 相似文献
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