Halogen-free flame-proof glass fiber reinforcement epoxy molding compound

An epoxy molding compound and glass fiber technology, which is applied in the field of thermosetting molding compounds, can solve the problems such as the expansion limitation of glass fiber reinforced epoxy molding compounds, the generation of toxic and harmful gases, and the unfavorable human environment, so as to ensure the safety and protection of the human body. effects of the environment
CN101343398AActive Publication Date: 2009-01-14常熟东南塑料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
常熟东南塑料有限公司
Publication Date
2009-01-14

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Abstract

The invention relates to non-halogen flame-resistant glass fiber reinforced epoxy molding compound. According to the weight parts, the material of the non-halogen flame-resistant glass fiber reinforced epoxy molding compound comprises 20 parts to 25 parts of epoxy resin, 7 parts to 9 parts of phenolic resin, 1.4 parts to 3.4 parts of curing agent, 60 parts to 75 parts of mineral filler, 4 parts to 7.5 parts of phosphate, 0.8 parts to 2 parts of metal oxide, 1.8 parts to 2.5 parts of mould releasing agent and 15 parts to 20 parts of reinforced fiber. The non-halogen flame-resistant glass fiber reinforced epoxy molding compound has advantages that because halogen is not contained in the formulation, when being burnt, noxious gas and harmful gas can not be generated, and the physical safety and the environmental protection can be ensured; the shrinkage ratio is 0.4 percent to 0.7 percent, the bending strength is 105 to 120 MPa, the notched impact strength is greater than 2.2 KJ per m<2>, the resistance is 1X10<12> Omega, the proof tracking index is greater than 600 V, the arc resistance is greater than 180 s, the electrical strength is greater than 10 MV per m, the flame-resistant performance reaches grade UL-94-V-0 (1.6 mm), and the non-halogen flame-resistant glass fiber reinforced epoxy molding compound can be suitable for the sealing material for manufacturing automobile commutators and electronic products.
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Description

technical field

[0001] The invention belongs to the technical field of thermosetting molding compounds, in particular to a halogen-free flame-retardant glass fiber reinforced epoxy molding compound. technical background

[0002] Epoxy molding compound is a composite material made by mixing epoxy resin with curing agent and other necessary components (such as filler, mold release agent, reinforcing fiber, etc.). Because this composite material has good adhesion, low moisture absorption and high strength, it is often used as an electronic material and packaging material for electronic components. Ordinary epoxy molding compound is easy to burn. In order to improve the combustion resistance of the material, that is, flame retardancy, a flame retardant must be added to the epoxy molding compound. As is known in the industry, adding halogenated flame retardants such as decabromodiphenyl ether, tetrabromobisphenol A, hexabromobenzene, tetrabromobutane and / or tetrabromoethane to e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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