Insulating material for earphone lines and preparation method of insulating material
A technology of insulating material and earphone cable, applied in the field of earphone, can solve the problems of low tensile strength, affect the appearance of earphone cable, affect normal use, etc., to improve elasticity and tensile strength, reduce internal defects of materials, and enhance bending resistance. effect of ability
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Embodiment 1
[0025] This embodiment relates to an insulating material for earphone wires, including the following raw materials in parts by weight: 35 parts of polyurethane elastomer, 13 parts of polystyrene, 20 parts of modified epoxy resin, 9 parts of polypropylene resin, high-density polystyrene 7 parts of ethylene, 3 parts of N,N-dimethylformamide, 2 parts of vinyltrimethoxysilane, 1 part of paraffin, 2 parts of antimony trioxide, 2 parts of graphene oxide, 3 parts of glass fiber, antioxidant 2 parts, 1 part of UV absorber.
[0026] Wherein, the preparation method of described modified epoxy resin is as follows:
[0027] (1) In parts by weight, add 35 parts of epoxy resin to 100 parts of toluene, stir evenly, add 17 parts of bromoacetic acid, stir and react at room temperature for 18 hours, then add 100 parts of methanol, precipitate, filter and dry to obtain the material A;
[0028] (2) In parts by weight, add 13 parts of material A to 45 parts of toluene, stir evenly, add 40 parts ...
Embodiment 2
[0038] This embodiment relates to an insulating material for earphone wires, including the following raw materials in parts by weight: 55 parts of polyurethane elastomer, 18 parts of polystyrene, 30 parts of modified epoxy resin, 16 parts of polypropylene resin, high-density polystyrene 14 parts of ethylene, 5 parts of N,N-dimethylformamide, 4 parts of vinyltrimethoxysilane, 4 parts of paraffin, 3 parts of antimony trioxide, 6 parts of graphene oxide, 7 parts of glass fiber, antioxidant 3 parts, 3 parts of UV absorber.
[0039] Wherein, the preparation method of described modified epoxy resin is as follows:
[0040] (1) In parts by weight, add 35 parts of epoxy resin to 100 parts of toluene, stir evenly, add 17 parts of bromoacetic acid, stir and react at room temperature for 18 hours, then add 100 parts of methanol, precipitate, filter and dry to obtain the material A;
[0041] (2) In parts by weight, add 13 parts of material A to 45 parts of toluene, stir evenly, add 40 pa...
Embodiment 3
[0051] This embodiment relates to an insulating material for earphone wires, including the following raw materials in parts by weight: 40 parts of polyurethane elastomer, 14 parts of polystyrene, 22 parts of modified epoxy resin, 11 parts of polypropylene resin, high-density polystyrene 9 parts of ethylene, 3.5 parts of N,N-dimethylformamide, 2.7 parts of vinyltrimethoxysilane, 2 parts of paraffin, 2.1 parts of antimony trioxide, 3 parts of graphene oxide, 4 parts of glass fiber, antioxidant 2.4 parts, 1.9 parts of ultraviolet absorber.
[0052] Wherein, the preparation method of described modified epoxy resin is as follows:
[0053] (1) In parts by weight, add 35 parts of epoxy resin to 100 parts of toluene, stir evenly, add 17 parts of bromoacetic acid, stir and react at room temperature for 18 hours, then add 100 parts of methanol, precipitate, filter and dry to obtain the material A;
[0054] (2) In parts by weight, add 13 parts of material A to 45 parts of toluene, stir...
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