论文部分内容阅读
辐射(电子束、γ-射线等)接枝常用于改善高分子复合材料间的相容性,进而提高材料的力学性能,Wilkie曾研究了光化学接枝后聚合物的热降解行为和阻燃性能,为了扩大辐射接枝技术的应用范围,我们以不同VA含量的EVA共聚物为基础,尝试通过电子束预辐射接枝促进聚合物热降解成碳性能(charring),以达到聚合物阻燃的目的并对其燃烧性能做出全面的表征,研究结果表明电子束预辐射接枝确是一个值得研究和开发的新型阻燃途径,1 实验(1)压片成形 用双辊混炼机将EVA材料在适当温度下分别压制成约0.4,1.2,3.2
Radiation (electron beam, γ-ray, etc.) grafting commonly used to improve the compatibility between polymer composites, and thus improve the mechanical properties of materials, Wilkie studied the photochemical grafting of the polymer after thermal degradation and flame retardant properties , In order to expand the application range of radiation grafting technology, based on EVA copolymer with different VA content, we try to promote the thermal degradation of polymer into carbon charring by electron beam pre-irradiation grafting so as to achieve the flame retardancy Purpose and make a comprehensive characterization of its combustion performance, the results show that electron beam pre-irradiation grafting is indeed a new way of research and development of flame retardant, an experiment (1) tabletting with a two-roll mixer EVA The materials are compressed at about 0.4, 1.2, 3.2, respectively, at appropriate temperatures