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A kind of bromine/antimony flame-retardant reinforced PBT composite material and preparation method thereof

A composite material and PBT resin technology, applied in bromine/antimony flame-retardant reinforced PBT composite material and its preparation field, can solve problems such as blurring, insufficient whiteness, and reduced laser marking performance of PBT materials, etc., to achieve contrast improvement and excellent Effect of Mechanical Properties and Flame Retardancy

Active Publication Date: 2021-06-22
宁波华腾首研新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of bromine-antimony flame retardants greatly reduces the laser marking performance of PBT materials, especially the laser marking logo clarity of flame-retardant enhanced PBT black materials is poor
[0006] Chinese patent CN 101423653 B (application number 200810203792.7) discloses a glass fiber reinforced polybutylene terephthalate composition with laser printing marking function and its preparation method, but no flame retardant is added in this scheme
At present, when white laser marking is performed on black or dark conventional bromine / antimony flame retardant reinforced PBT products, most of them will have appearance problems such as burning, yellowing and blackening, light color, insufficient whiteness and blurring
This is because PBT resin has poor absorption of 1064nm laser, and the addition of carbon black, glass fiber and flame retardant will also have adverse effects on laser marking

Method used

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  • A kind of bromine/antimony flame-retardant reinforced PBT composite material and preparation method thereof
  • A kind of bromine/antimony flame-retardant reinforced PBT composite material and preparation method thereof
  • A kind of bromine/antimony flame-retardant reinforced PBT composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 100 parts by weight of PBT TH6100 dried at 120°C for 4 hours, 16 parts by weight of CR-225K, 4 parts by weight of antimony trioxide, 2 parts by weight of LaserAT-8733, and 12 parts by weight of self-made white laser marking masterbatch , Carbon black M800 weight part is 1, 1010 weight part is 0.2, 168 weight part is 0.4, mixes uniformly at room temperature, and pelletizes by twin-screw extruder. The processing technology is: the speed of the main engine is 200rpm, the temperature of the first stage is 200°C, the temperature of the second stage is 220°C, the temperature of the third stage is 230°C, the temperature of the fourth stage is 230°C, the temperature of the fifth stage is 240°C, and the temperature of the sixth stage is 240°C.

Embodiment 2

[0052] 100 parts by weight of PBT TH6100 dried at 120°C for 4 hours, 16 parts by weight of CR-225K, 4 parts by weight of antimony trioxide, and 2 parts by weight of LaserAT-8733, self-made white laser marking masterbatch (white laser marking Auxiliaries are XAP-03 and A11295) 12 parts by weight, carbon black M800 parts by weight 1, 1010 parts by weight 0.2, 168 parts by weight 0.4, mixed uniformly at room temperature, and granulated by a twin-screw extruder. The processing technology is: the speed of the main engine is 200rpm, the temperature of the first stage is 200°C, the temperature of the second stage is 220°C, the temperature of the third stage is 230°C, the temperature of the fourth stage is 230°C, the temperature of the fifth stage is 240°C, and the temperature of the sixth stage is 240°C.

Embodiment 3

[0054] 50 parts by weight of PBT TH6100, 50 parts by weight of PBT TH6082, 16 parts by weight of decabromodiphenylethane, 4 parts by weight of antimony trioxide, and 2 parts by weight of LaserAT-8733, which were dried at 120°C for 4 hours, were made by White laser marking masterbatch is 12 parts by weight, carbon black M800 is 1 part by weight, 1010 parts by weight is 0.2, and 168 parts by weight is 0.4, mix well at room temperature, add long glass fiber EDR17-2400 -988A granulation, control glass fiber content at 20. The processing technology is: the speed of the main engine is 200rpm, the temperature of the first stage is 210°C, the temperature of the second stage is 220°C, the temperature of the third stage is 230°C, the temperature of the fourth stage is 240°C, the temperature of the fifth stage is 240°C, and the temperature of the sixth stage is 250°C.

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Abstract

The invention discloses a bromine / antimony flame-retardant reinforced PBT composite material and a preparation method thereof, and relates to the field of new polymer materials. The material composition includes the following components in mass percentage: 50-60% of PBT resin; 5-10% of brominated flame retardant; 1-3% of antimony compound; 0.5-2% of laser marking auxiliary agent; self-made white laser marking Auxiliary masterbatch 3‑6%; carbon black 0.05‑0.5%; antioxidant 0.2‑0.4%; glass fiber 0‑40%. The bromine / antimony flame-retardant reinforced PBT composite material obtained in the present invention has the excellent mechanical properties and flame retardancy of the bromine / antimony flame-retardant system, and also has the function of white laser marking. After adding the self-made white laser marking auxiliary agent, the material is laser The whiteness, clarity and contrast of the mark to the substrate are significantly improved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a bromine / antimony flame-retardant reinforced PBT composite material and a preparation method thereof. Background technique [0002] At present, in order to be able to effectively mark, product anti-counterfeiting and product traceability on plastic terminal products, various industries need to mark on the plastic surface. Laser marking is to use the thermal effect of laser to cause carbonization, foaming or discoloration reaction on the surface of the object, so as to obtain a mark different from the color of the object matrix. As a new marking method, laser marking technology has the advantages of environmental friendliness, permanent marking and flexible marking. At the same time, the characteristics of fast speed, high precision and high automation of laser marking make it rapidly replace traditional ink printing and screen printing, and become an efficient and conventional ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/14C08K3/22C08K3/04
Inventor 唐帅张宜鹏贾义军曹金波吕孝腾边策
Owner 宁波华腾首研新材料有限公司
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