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A kind of alloy material and preparation method thereof

An alloy material and conductive filler technology, applied in the field of polymer alloy materials, can solve the problems of material mechanical failure, material impact toughness reduction, poor mechanical properties, etc., achieve low percolation threshold, good processing performance, and reduce stress concentration points. Effect

Active Publication Date: 2018-11-16
CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, the common problem in composite conductive polymer materials is poor mechanical properties
Due to the high amount of conductive filler added, and the conductive filler is easy to form agglomeration in the polymer matrix, it will form stress concentration inside the material, greatly reduce the impact toughness of the material, and easily lead to mechanical failure of the material

Method used

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  • A kind of alloy material and preparation method thereof
  • A kind of alloy material and preparation method thereof
  • A kind of alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The preparation method of the alloy material of the present embodiment comprises the following steps:

[0046] A. Put 80 parts by weight of compatibilizer SEBS-g-MA into a high-speed mixer, add 20 parts by weight of conductive filler nano-carbon fiber at room temperature, and stir and mix. The mixed raw materials were melt-blended with a twin-screw extruder at an extrusion temperature of 170° C., and the mixed materials were strand-cut into pellets to obtain conductive masterbatches.

[0047] B. Put 80 parts by weight of polybutylene terephthalate PBT into a high-speed mixer, add 20 parts by weight of an anti-hydrolysis agent at room temperature and stir and mix. The mixed raw materials are melted and blended with a twin-screw extruder at an extrusion temperature of 230° C., and the mixed materials are cut into strands to obtain hydrolysis-resistant masterbatches.

[0048] C. Dry polycarbonate PC and polybutylene terephthalate PBT in a blast drying oven at 120° C. for ...

Embodiment 2

[0071] The preparation method of the alloy material of the present embodiment comprises the following steps:

[0072] A. Put 85 parts by weight of compatibilizer SMA into a high-speed mixer, add 15 parts by weight of conductive filler nano-carbon fiber at room temperature, and stir and mix. The mixed raw materials were melt-blended with a twin-screw extruder at an extrusion temperature of 180° C., and the mixed material was strand-cut into pellets to obtain conductive masterbatches.

[0073] B. Put 85 parts by weight of polybutylene terephthalate PBT into a high-speed mixer, add 15 parts by weight of an anti-hydrolysis agent at room temperature and stir and mix. The mixed raw materials are melted and blended with a twin-screw extruder at an extrusion temperature of 220°C, and the mixed materials are cut into strands to obtain hydrolysis-resistant masterbatches.

[0074] C. Dry polycarbonate PC and polybutylene terephthalate PBT in a blast drying oven at 110° C. for 4 hours. ...

Embodiment 3

[0082] The preparation method of the alloy material of the present embodiment comprises the following steps:

[0083] A. Put 75 parts by weight of compatibilizer SEBS-g-MA into a high-speed mixer, add 25 parts by weight of conductive filler nano-carbon fiber at room temperature, and stir and mix. The mixed raw materials were melt-blended with a twin-screw extruder at an extrusion temperature of 170° C., and the mixed materials were strand-cut into pellets to obtain conductive masterbatches.

[0084] B. Put 75 parts by weight of polybutylene terephthalate PBT into a high-speed mixer, add 25 parts by weight of an anti-hydrolysis agent at room temperature and stir and mix. The mixed raw materials are melted and blended with a twin-screw extruder at an extrusion temperature of 210° C., and the mixed materials are cut into strands to obtain hydrolysis-resistant masterbatches.

[0085] C. Dry polycarbonate PC and polybutylene terephthalate PBT in a blast drying oven at 130° C. for ...

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Abstract

The invention relates to an alloy material and a preparation method thereof. The preparation method comprises the following steps: A, mixing the following components in parts by weight: 70-90 parts of a compatilizer and 10-30 parts of conductive filler; extruding and granulating to obtain a conductive master batch; B, mixing the following components in parts by weight: 70-90 part of polybutylene terephthalate and 10-30 parts of an anti-hydrolysis agent; extruding and granulating to obtain an anti-hydrolysis master batch; C, mixing the following components in parts by weight: 30-70 parts of polycarbonate, 30-70 parts of the polybutylene terephthalate, 5-15 parts of the conductive master batch and 2-10 parts of the anti-hydrolysis master batch; fusing and extruding; and in an extruding process, carrying out ultrasonic radiation treatment on a fused mixture to obtain a finished-product material. The alloy material prepared by the preparation method of the alloy material has very excellent conductivity and anti-impact performance.

Description

technical field [0001] The invention relates to a PC / PBT alloy material and a preparation method of the alloy material, belonging to the technical field of polymer alloy materials. Background technique [0002] Composite conductive polymer material is a composite material with conductive properties prepared by adding conductive fillers to the polymer matrix. Due to its broad application prospects in electronic devices, electromagnetic shielding materials, antistatic materials, chemical sensors, etc., it has received more and more attention in recent years. Commonly used conductive fillers include carbon black, carbon nanofibers, carbon nanotubes, and the like. The introduction of conductive fillers into polymers can significantly improve the conductive properties of polymers. When the amount of conductive fillers added reaches a critical value, the composite material will undergo a sudden change from non-conductive to conductive. Percolation threshold for molecular materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/02C08L79/00C08L51/00C08L35/06C08K7/06C08G18/02C08G18/83C08J5/18
CPCC08G18/025C08G18/831C08J5/18C08J2369/00C08J2435/06C08J2451/00C08J2467/02C08J2479/00C08K2201/001C08K2201/011C08L69/00C08L2205/025C08L2205/035C08L67/02C08L79/00C08L51/003C08K7/06C08L35/06
Inventor 茹正伟熊唯诚冯晨霞周加清
Owner CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD