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High-hardness high-scratch-resistance spraying-free highlight PC/PBT alloy material and preparation method thereof

An alloy material and scratch-resistant technology, which is used in the field of high-hardness, high-scratch-resistance, spray-free high-gloss PC/PBT alloy materials and their preparation. Low problems, to achieve the effect of scratch resistance, excellent hardness and scratch resistance, good high gloss performance

Inactive Publication Date: 2020-11-10
南京跃贝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for high-gloss materials commonly used in automobiles, such as high-gloss PC / ABS, PC / ASA alloy materials, and high-gloss pure PC materials, the surface hardness of these materials is relatively low, and the scratch resistance of the surface of parts is not good. The high-gloss decorative parts around the console are touched by people's hands for a long time, and the surface of the parts is easy to leave detailed scratches

Method used

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  • High-hardness high-scratch-resistance spraying-free highlight PC/PBT alloy material and preparation method thereof
  • High-hardness high-scratch-resistance spraying-free highlight PC/PBT alloy material and preparation method thereof
  • High-hardness high-scratch-resistance spraying-free highlight PC/PBT alloy material and preparation method thereof

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Embodiment 1

[0026] Weigh 60 parts of PC, 37 parts of PBT, 3 parts of compatibilizer, 1680.2 parts of antioxidant, 0.4 part of ultraviolet absorber UV-2340.4 part and 0.2 part of PETS according to the ratio of parts by weight and mix and stir to obtain the mixture; wherein the compatibilizer is E-MA-GMA, the melt index of PC is 10g / min, the viscosity of PBT is 1.0dl / g, and the single filament diameter of fine glass fiber is 7μm.

[0027] Put the mixture into the extrusion equipment, and at the same time feed 0.5 parts of fine glass fiber from the side feeding port, blend at a high speed of 250r / min for 10 minutes, then melt and extrude through the extruder, pelletize and cool to obtain high strength and high durability. Scratch-free spray-painted high-gloss PC / PBT alloy material.

[0028] The PC / PBT alloy material that present embodiment obtains is carried out experimental detection, detects its glossy swatch 20 ° gloss (GU), ball indentation hardness (degree), PV3987 wear-resisting gloss ...

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Abstract

The invention provides a high-hardness high-scratch-resistance spraying-free highlight PC / PBT alloy material. The alloy material comprises the following components in parts by weight: 60-70 parts of polycarbonate, 27-37 parts of polybutylene terephthalate, 3-5 parts of a compatilizer, 0.5-5 part of fine glass fibers, 0.1-0.5 part of an antioxidant, 0.2-1.0 part of an ultraviolet light absorbent and 0.1-0.5 part of a lubricant. According to the PC / PBT alloy material disclosed by the invention, the fine glass fibers with relatively small monofilament diameters are added to modify the PC and PBTmaterials, so that the modified PC / PBT alloy material has excellent high hardness and high scratch resistance.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a high-hardness, high-scratch-resistant, spray-free high-gloss PC / PBT alloy material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with outstanding performance, which has high gloss characteristics, high impact toughness, heat resistance, rigidity, creep resistance, and excellent dimensional stability; Butylene glycol formate (PBT) is a relatively new engineering plastic with excellent performance, wide application, and high gloss. PBT material has fast crystallization speed, high-speed molding, easy molding processing, good weather resistance, chemical resistance Excellent character, excellent wear resistance and scratch resistance, low water absorption, good fatigue resistance and other excellent characteristics. PC / PBT alloy combines the respective advantages of PC and PBT, and their prope...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08K13/04C08K7/14
CPCC08K2201/003C08L69/00C08L2205/03C08L2205/08C08L67/02C08K13/04C08K7/14
Inventor 王正有徐青华魏高峰但伟军
Owner 南京跃贝新材料科技有限公司
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