Flame-retardant glass fiber composite material and preparation method thereof

Abstract

The invention relates to the technical field of glass fiber composite materials, in particular to a flame-retardant glass fiber composite material and a preparation method thereof. The flame-retardant glass fiber composite material comprises the following raw materials: a glass fiber composition and an epoxy resin base material glue solution, wherein the weight ratio of the glass fiber composition to the epoxy resin base material glue solution is 7: (3-3.5); the glass fiber composition is mainly prepared from the following raw materials in parts by weight: 58 to 65 parts of SiO2, 5 to 10 parts of gamma-Al2O3, 8 to 16 parts of CaO, 8 to 13 parts of MgO, 2 to 5 parts of B2O3, 0.1 to 0.3 part of Li2O, 0.5 to 2 parts of Na2O, 0.01 to 0.03 part of Sb2O3 and 0.1 to 0.5 part of Co powder. The melting point of the glass fiber is reduced on the premise that the performance of the glass fiber is not affected, the flame retardance is enhanced, smooth wire drawing is ensured, and the prepared glass fiber composite material is good in fire resistance.

Description

technical field [0001] The invention relates to the technical field of glass fiber composite materials, in particular to a flame-retardant glass fiber composite material. Background technique [0002] Glass fiber is a high-performance inorganic material with excellent mechanical properties, corrosion resistance, high temperature resistance and good insulation. It is a glass fiber composite material formed by compounding organic materials such as thermosetting resins or thermoplastic resins, and is widely used in various fields of the national economy. Glass fiber composite material is one of the fastest-growing and most widely used high-performance composite materials. [0003] The fire resistance performance of glass fiber composite materials is more important in various fields in practical applications. How to develop flame-retardant glass fiber composite materials is an important topic for those skilled in the art. [0004] Chinese patent CN104402235B authorizes and ann...

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Problems solved by technology

[0005] There are many problems in the actual preparation process of the above-mentioned glass fiber composite materials, for example: due to the introduction of 15-25wt% B in the glass fiber 2 o 3 , leading to a large reduction in glass viscosity, and the introduction of a large amount of alkali metal oxides also leads to loose glass fiber structure, which makes the glass fiber easy to break during the wire drawing process, and the elastic modulus, hardness, and chemical stability of the glass fiber have a certain degree. degree of reduction

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