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采用聚苯基硅氧烷(PPMS)、9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)与双酚A型环氧树脂合成了新型的含磷硅环氧树脂(Si-P-EP),通过红外谱确认了其结构。将Si-P-EP与纯环氧树脂复配制备得到复合物Si-P-EP/EP,对其进行了氧指数和水平燃烧测试并通过红外光谱对燃烧后的残炭结构进行了分析。结果表明,Si-P-EP/EP的氧指数有所提高,水平火蔓延速率由27.27 mm/min降低到20.13 mm/min,Si-P-EP/EP燃烧后生成了含磷硅的炭层,从而提高了环氧树脂的阻燃性能。
A new type of phosphorus-containing phosphorus was synthesized by using polyphenylsiloxane (PPMS) and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) Silicone epoxy resin (Si-P-EP) confirmed its structure by infrared spectrum. The composite Si-P-EP / EP was prepared by compounding Si-P-EP with pure epoxy resin. The oxygen index and the horizontal burning test were carried out and the structure of the carbon residue after combustion was analyzed by infrared spectroscopy. The results showed that the oxygen index of Si-P-EP / EP increased, the horizontal flame spread rate decreased from 27.27 mm / min to 20.13 mm / min, and the Si-P-EP / , Thus improving the flame retardant properties of epoxy resin.