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Black glass fiber reinforced PBT (Polybutylece Terephthalate) composite material capable of performing laser welding and preparation method of composite material

A laser welding and composite material technology, applied in the field of modified polymer materials, can solve the problems of inability to reach the interface of welding materials, difficult to be welded together, etc., and achieve easy large-scale industrial production, excellent mechanical properties, and operability. strong effect

Active Publication Date: 2019-01-18
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to cope with the deficiencies of the prior art, the present invention provides a glass fiber reinforced PBT composite material that realizes "black to black" plastic laser welding, and solves the problem that when both materials are black, it is difficult to absorb laser energy due to the black material. Welded together, unable to reach the technical problem at the welding material interface

Method used

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  • Black glass fiber reinforced PBT (Polybutylece Terephthalate) composite material capable of performing laser welding and preparation method of composite material
  • Black glass fiber reinforced PBT (Polybutylece Terephthalate) composite material capable of performing laser welding and preparation method of composite material
  • Black glass fiber reinforced PBT (Polybutylece Terephthalate) composite material capable of performing laser welding and preparation method of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) 31 parts of PBT resin, 20 parts of PET resin, 25 parts of PC resin, 3 parts of ethylene-methyl acrylate copolymer, 1 part of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.2 parts of polyethylene wax 0.6 parts of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 0.2 parts of phosphorous acid, and 0.1 parts of black powder were added to a high-speed mixer and mixed for 2 minutes to obtain a premixed Material; Wherein, the content of glycidyl methacrylate comonomer in styrene-acrylonitrile-glycidyl methacrylate copolymer is 1wt%, and the mass ratio of each component of black powder is the red dyestuff of perionones : the green dye of ultramarine blue: the blue dye of ultramarine blue: anthraquinone=1:0.85:1.35:0.95;

[0028] (2) Add the premix into the twin-screw extruder through the main feeding hopper, and add 20 parts of alkali-free E-grade chopped glass fiber with a diameter of 9 μm infiltrated by epoxy silane coupling agent at the side feed ...

Embodiment 2

[0030] (1) 41 parts of PBT resin, 15 parts of PET resin, 15 parts of PC resin, 1 part of ethylene-butyl acrylate copolymer, 1 part of ethylene-glycidyl methacrylate copolymer, styrene-acrylonitrile-methyl 2 parts of glycidyl acrylate copolymer, 0.2 parts of pentaerythritol stearate, 0.2 parts of stearic acid, 0.3 parts of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate 1 part, 0.1 part of tris(2,4-di-tert-butylphenyl) phosphite, 0.1 part of sodium pyrophosphate, and 1 part of black powder were added to a high-speed mixer and mixed for 1 min to obtain a premix; among them, styrene-acrylonitrile -The content of glycidyl methacrylate comonomer in the glycidyl methacrylate copolymer is 3wt%, and the mass ratio of each component of the black powder is red dyestuff of perionones: ultramarine green dyes: ultramarines The blue dye: anthraquinones = 1:0.8:1:0.9;

[0031] (2) Add the premixed material into the twin-screw extruder through the main feeding hopper, and add 25...

Embodiment 3

[0033] (1) 46 parts of PBT resin, 10 parts of PET resin, 10 parts of PC resin, 1 part of ethylene-methyl acrylate-glycidyl methacrylate copolymer, styrene-acrylonitrile-glycidyl methacrylate copolymer 3 parts, 0.4 parts of acidified polyethylene wax, 0.2 parts of polyethylene wax, 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite, 0.03 parts of sodium dihydrogen phosphate, bisphenol A bis-diphenyl phosphoric acid Add 0.02 parts of ester and 1.5 parts of black powder into a high-speed mixer and mix for 2 minutes to obtain a premix; wherein, the content of glycidyl methacrylate comonomer in styrene-acrylonitrile-glycidyl methacrylate copolymer is 5wt %, the mass ratio of each component of the black powder is the red dye of perionones: the green dye of ultramarine blue: the blue dye of ultramarine blue: anthraquinone=1:0.8:1.35:0.95;

[0034] (2) Add the premixed material into the twin-screw extruder through the main feeding hopper, and add 30 parts of alkali-free E-grade chop...

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Abstract

The invention discloses a black glass fiber reinforced PBT (Polybutylece Terephthalate) composite material capable of performing laser welding and a preparation method of the composite material. The composite material is composed of the following components: PBT resins, terephthalic acid and ethylene glycol ester copolymer and analogues, polycarbonate, modified glass fibers, a flexibilizer, a compatilizer, a lubricating agent, an antioxidant, an ester exchange inhibitor and black powder. The used raw materials are wide in source, the addition amount is low, the preparation method is simple, the operability is high, industrial production is easily realized, and the cost performance of the product is high; the black high-laser transmission composite material is excellent in mechanical property, and the requirements on materials in the fields of automobiles, electronics and electrical appliances and the like are met; laser welding of the glass fiber reinforced PBT composite material can be realized, the constraint of 'black-to-black' plastic laser welding is perfectly overcome, and the application range of a laser welding process is widened.

Description

technical field [0001] The invention relates to the field of modified polymer materials, in particular to a laser weldable black glass fiber reinforced PBT composite material and a preparation method thereof. Background technique [0002] Plastic laser welding technology uses a laser beam to penetrate a layer of plastic and is absorbed by the dual layer of plastic. The heat generated by the laser melts the contact surface of the plastic, and then bonds thermoplastic sheets, films or molded parts together. . [0003] The advantages of laser welding applied to the welding of plastic parts include: precise and firm welding; airtight and watertight seal, less resin degradation and less debris generated during welding, and the surface of the product can be tightly connected around the weld; Laser welding does not produce plastic residues, making it more suitable for the pharmaceutical product industry and electronic sensors, etc.; laser welding technology is applied to workpiece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L69/00C08L51/00C08L23/08C08L25/14C08K13/06C08K9/06C08K5/09C08K5/20C08K5/134C08K5/526C08K7/14C08J5/08C08J5/10
CPCC08J5/08C08J5/10C08J2367/02C08J2467/02C08J2469/00C08K5/09C08K5/1345C08K5/20C08K5/526C08K7/14C08K9/06C08K13/06
Inventor 任大伟官冰李荣群陈鹏李春忠张玲王庚超
Owner ORINKO NEW MATERIAL CO LTD
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