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Method for Improving Flame Retardant Efficiency of Phenoxyphosphazene Compound, and Prepreg. Laminate for printed circuit Made by the Method
Method for Improving Flame Retardant Efficiency of Phenoxyphosphazene Compound, and Prepreg. Laminate for printed circuit Made by the Method
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机译:提高苯氧磷腈化合物的阻燃效率的方法以及预浸料。用该方法制造的印刷电路用层压板
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摘要
The present invention provides a method for improving the flame retardant efficiency of a phenoxyphosphazene compound, and provides a prepreg, a laminate, and a laminate for printed circuit that are made by the method. The present invention compounds a phenoxyphosphazene compound and a dihydrobenzoxazine ring-containing compound in a halogen-free flame retardant resin composition, so as to effectively improve the flame-retardant efficiency of the phenoxyphosphazene compound. Besides, the prepreg, the laminate and the laminate for printed circuit that are made by the method for improving the flame retardant efficiency of a phenoxyphosphazene compound have excellent flame retardancy, chemical resistance, anti-CAF property, high glass transition temperature (Tg), high thermal resistance, low dielectric dissipation factor, low moisture, and low C.T.E, etc. Furthermore, epoxy resins are interfused to greatly overcome the brittleness of the benzoxazine resin, so, the cured resin has comparatively high flexural strength and good processability.
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