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PBT/PC alloy material with high elongation at break and preparation method of PBT/PC alloy material

A technology of alloy materials and elongation, which is applied in the field of PBT/PC alloy materials and its preparation, can solve the problems of lack of electrical conductivity and insufficient rigidity of PBT/PC alloys, and achieve improved rigidity and toughness, good online spraying performance, The effect of good application prospects

Pending Publication Date: 2021-02-26
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD +1
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  • Description
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a PBT / PC alloy material with high elongation at break and its preparation method, which solves the defects of insufficient rigidity and lack of electrical conductivity of the existing PBT / PC alloy

Method used

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  • PBT/PC alloy material with high elongation at break and preparation method of PBT/PC alloy material
  • PBT/PC alloy material with high elongation at break and preparation method of PBT/PC alloy material
  • PBT/PC alloy material with high elongation at break and preparation method of PBT/PC alloy material

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preparation example Construction

[0028] Preparation methods include:

[0029] According to the ratio in Table 1, the carbon nanotubes and ultrafine talc powder are pre-mixed, and then mixed with PBT resin, PC resin, K resin, transesterification inhibitor and additives, and then added to a twin-screw extruder for melt mixing. kneading, melting and kneading at 180-260° C., screw speed at 350-450 rpm, extruding and granulating to obtain PBT / PC alloy material.

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Abstract

The invention relates to a PBT / PC alloy material with high elongation at break and a preparation method of the PBT / PC alloy material. The PBT / PC alloy material comprises PBT resin, PC resin, an alkylphosphate ester ester exchange inhibitor, K resin, carbon nanotubes, ultrafine talcum powder and auxiliaries. The K resin and the ultrafine talcum powder are added into the PBT / PC alloy resin to improve the rigidity and toughness of the PBT / PC alloy, and meanwhile, the carbon nanotubes are added into the PBT / PC alloy to enable the PBT / PC alloy to have certain conductivity, so that good online spraying performance is obtained; and most obviously, the PBT / PC alloy has very high elongation at break and a bright application prospect.

Description

technical field [0001] The invention belongs to the field of alloy materials, in particular to a PBT / PC alloy material with high elongation at break and a preparation method thereof. Background technique [0002] Spraying is a very important process in the production process of automobiles. With the increasing application of plastic parts in automotive exteriors, such as bumpers, tailgate outer panels, fuel filler caps, etc., the spraying performance of plastics is the focus of OEMs. The performance of concern, especially for plastic parts that are sprayed together with the body, such as the fuel filler cap, also has high requirements for painting performance. The body needs to go through high temperature electrophoresis in the online spraying, and the temperature can even reach 160°C, so the temperature resistance of the material is also high. Take the fuel filler cap as an example. At present, PPO / PA alloy materials are used in the industry, which is high in cost and has ...

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Application Information

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IPC IPC(8): C08L67/02C08L69/00C08L53/02C08K13/06C08K3/04C08K3/34
CPCC08L67/02C08L2205/03C08K2201/011C08K2201/005C08K2201/001C08L69/00C08L53/02C08K13/06C08K3/041C08K3/34
Inventor 付大炯夏超叶士兵张超丁正亚杨波罗忠富
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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