Glass fiber reinforced flame retardant polybutylene terephthalate resin composition with laser engraving function and preparation method thereof
A polybutylene terephthalate and resin composition technology is applied in the field of resin composition preparation and can solve the problems of uneven mixing of materials, poor temperature resistance, poor laser engraving effect, etc.
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[0074] Example 1.
[0075] In parts by weight, weigh 73.2 parts of polybutylene terephthalate, 15 parts of brominated epoxy resin, 5 parts of antimony trioxide, and 5 parts of ethylene-butyl acrylate-glycidyl methacrylate copolymer , 1.0 part of laser additive with brand WL515, 0.25 part of main antioxidant tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, auxiliary antioxidant is three [ 2.4-Di-tert-butylphenyl] phosphite 0.25 parts, pentaerythritol stearate 0.3 parts; press at room temperature figure 2 The preparation flow chart first mix the brominated epoxy resin, antimony trioxide and laser additives in a high-speed mixer, and then add polybutylene terephthalate, ethylene-butyl acrylate-glycidyl methacrylate Copolymer, tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, tris[2.4-di-tert-butylphenyl] phosphite and pentaerythritol stearate It is evenly mixed in a high-speed mixer and then produced in a twin-screw extru...
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[0077] Example 2.
[0078] In parts by weight, weigh 67.7 parts of polybutylene terephthalate, 12 parts of SR245 bromotriazine, 4 parts of antimony trioxide, 4 parts of ethylene-butyl acrylate-glycidyl methacrylate copolymer , 0.8 parts of BW550 laser additive, 0.3 parts of γ-(2,3-glycidoxy) propyltrimethoxysilane, main antioxidant four [β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionate] pentaerythritol ester 0.2 part, auxiliary antioxidant is tris[2.4-di-tert-butylphenyl] phosphite 0.2 part, stearic acid pentaerythritol ester 0.3 part, carbon black 0.5 part, continuous 10 parts of glass fiber; press at room temperature figure 2 Preparation flow chart Firstly mix SR245 bromotriazine, antimony trioxide and laser additives in a high-speed mixer, and then add polybutylene terephthalate, ethylene-butyl acrylate-glycidyl methacrylate Copolymer, γ-(2,3-glycidoxy)propyl trimethoxysilane, tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, three [2.4-Di-ter...
Example Embodiment
[0080] Example 3.
[0081] In parts by weight, weigh 60.85 parts of polybutylene terephthalate, 11 parts of brominated epoxy resin, 3.5 parts of antimony trioxide, and 3 parts of ethylene-butyl acrylate-glycidyl methacrylate copolymer , 0.6 parts by weight of WL515 laser additive, 0.3 parts of γ-(2,3-glycidoxy)propyltrimethoxysilane, main antioxidant tetra[β-(3,5-di-tert-butyl -4-Hydroxyphenyl) propionate] pentaerythritol ester 0.2 parts, auxiliary antioxidant is 0.2 parts of tris[2.4-di-tert-butylphenyl] phosphite, 0.35 parts of montan wax, 20 parts of continuous glass fiber; Press at room temperature figure 2 The preparation flow chart first mix the brominated epoxy resin, antimony trioxide and laser additives in a high-speed mixer, and then add polybutylene terephthalate, ethylene-butyl acrylate-glycidyl methacrylate Copolymer, γ-(2,3-glycidoxy)propyl trimethoxysilane, tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, three [2.4-Di-tert-butylph...
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