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

2008 
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 , the resistance is 1X10 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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