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A kind of flame-retardant glass fiber composite material and preparation method thereof

A technology of glass fiber and composite materials, which is applied in the field of flame-retardant glass fiber composite materials, and can solve the problems of loose glass fiber structure, large reduction of glass viscosity, reduction of glass fiber elastic modulus, hardness and chemical stability, etc.

Active Publication Date: 2022-04-01
山东墨匠新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A kind of flame-retardant glass fiber composite material and preparation method thereof
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Embodiment 1

[0020] A kind of flame-retardant glass fiber composite material, raw material comprises glass fiber composition and epoxy resin substrate glue solution, and described glass fiber composition is mainly made up of the raw material of following parts by weight: SiO 2 60 parts, γ-Al 2 o 3 8 parts, CaO12 parts, MgO10 parts, B 2 o 3 3 copies, Li 2 O0.2 parts, Na 2 O1.2 parts, Sb 2 o 3 0.02 part and 0.3 part of Co powder; 110 parts of the epoxy resin, 22 parts of silica nanoparticles, 12 parts of hexahydrophthalic anhydride, 12 parts of polyacrylamide, 2 parts of carboxymethyl cellulose, and nanometer CaCO31. 3 parts and 7 parts aluminum hydroxide.

[0021]The γ-Al 2 o 3 The particle size is 10-25nm, and the specific surface area is ≥300m 2 / g, the Li 2 O, Na 2 O, Sb 2 o 3 and Co powder particle size are smaller than γ-Al 2 o 3 particle size.

[0022] The mixing method of described glass fiber composition comprises the steps:

[0023] (1) Weigh the raw materials ...

Embodiment 2

[0028] A flame-retardant glass fiber composite material, raw materials include a glass fiber composition and an epoxy resin substrate glue, the weight ratio of the glass fiber composition to the epoxy resin substrate glue is 7:3; the glass The fiber composition is mainly composed of the following raw materials in parts by weight: SiO 2 58 parts, γ-Al 2 o 3 5 parts, CaO8 parts, MgO8 parts, B 2 o 3 2 copies, Li 2 O0.1 parts, Na 2 O0.5 parts, Sb 2 o 3 0.01 part and 0.1 part of Co powder; the epoxy resin substrate glue mainly consists of the following raw materials in parts by weight: 100 parts of epoxy resin, 20 parts of silica nanoparticles, 5 parts of hexahydrophthalic anhydride, 5 parts of polyacrylamide, 1 part of carboxymethyl cellulose, nano-CaCO 3 0.5 parts and 5 parts of aluminum hydroxide.

[0029] The γ-Al 2 o 3 The particle size is 10-25nm, and the specific surface area is ≥300m 2 / g, the Li 2 O, Na 2 O, Sb 2 o 3 and Co powder particle size are small...

Embodiment 3

[0036] A flame-retardant glass fiber composite material, raw materials include a glass fiber composition and an epoxy resin substrate glue, the weight ratio of the glass fiber composition to the epoxy resin substrate glue is 7:3.5; the glass The fiber composition is mainly composed of the following raw materials in parts by weight: SiO 2 65 parts, γ-Al 2 o 3 10 parts, CaO16 parts, MgO13 parts, B 2 o 3 5 copies, Li 2 O0.3 parts, Na 2 O2 parts, Sb 2 o 3 0.03 part and 0.5 part of Co powder; the epoxy resin substrate glue mainly consists of the following raw materials in parts by weight: 120 parts of epoxy resin, 25 parts of silica nanoparticles, 10 parts of hexahydrophthalic anhydride, 10 parts of polyacrylamide, 3 parts of carboxymethyl cellulose, nano-CaCO 3 2 parts and 10 parts of aluminum hydroxide.

[0037] The γ-Al 2 o 3 The particle size is 10-25nm, and the specific surface area is ≥300m 2 / g, the Li 2 O, Na 2 O, Sb 2 o 3 and Co powder particle size are ...

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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 raw materials of the flame-retardant glass fiber composite material include a glass fiber composition and an epoxy resin substrate glue, and the weight ratio of the glass fiber composition to the epoxy resin substrate glue is 7: (3‑3.5) ; The glass fiber composition is mainly composed of the following raw materials in parts by weight: SiO 2 58‑65 parts, γ‑Al 2 o 3 5‑10 parts, CaO8‑16 parts, MgO8‑13 parts, B 2 o 3 2‑5 servings, Li 2 O0.1‑0.3 parts, Na 2 O0.5-2 parts, Sb 2 o 3 0.01‑0.03 part and Co powder 0.1‑0.5 part. The invention lowers the melting point of the glass fiber on the premise of ensuring that the performance of the glass fiber itself is not affected, enhances the flame retardancy, ensures smooth wire drawing, and the prepared glass fiber composite material has good 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/00C04B26/14C04B111/28
CPCC04B26/14C03C13/00C04B2111/28C04B2201/50C04B14/42C04B14/062C04B24/04C04B24/2652C04B24/383C04B14/28C04B14/303
Inventor 刘兴月齐元彬孙立超
Owner 山东墨匠新材料科技有限公司