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Thermoplastic resin-based conductive composite material and preparation method thereof

A technology of conductive composite materials and thermoplastic resins, which is applied in the field of engineering plastics, can solve the problems of inconsistency in the impact strength of materials, and achieve the effects of shortening the molding cycle, low volume resistivity, and accelerating crystallization speed

Inactive Publication Date: 2021-05-28
SHENZHEN XIWAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a thermoplastic resin-based conductive composite material and its preparation method, which aims to solve the problems of existing thermoplastic materials that the volume resistivity and processing are simple, and the toughness of the material and the impact strength of the material cannot be balanced

Method used

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  • Thermoplastic resin-based conductive composite material and preparation method thereof
  • Thermoplastic resin-based conductive composite material and preparation method thereof
  • Thermoplastic resin-based conductive composite material and preparation method thereof

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preparation example Construction

[0071] In the second aspect, the embodiment of the present application provides a method for preparing a thermoplastic resin-based conductive composite material, including the following steps:

[0072] S01. According to the ligand of the thermoplastic resin-based conductive composite material described in the first aspect above, each raw material component is weighed;

[0073] S02. drying the thermoplastic resin thermoplastic resin-based conductive composite material at a temperature of 80-140° C. for 0-4 hours;

[0074] S03. Add the dried thermoplastic resin, compatibilizer, nucleating agent, antioxidant, other additives, and coupling agent into the mixer respectively, and stir and mix at a speed of 200-500 rpm for 3-5 minutes. Obtain a well-mixed premix;

[0075] S04. adding carbon nanotubes to the premix, stirring and mixing at a speed of 200-500 rpm for 3-5 minutes to obtain a mixture;

[0076] S05. The mixture is put into a twin-screw extruder, melt-extruded to pelletiz...

Embodiment 1-4、 comparative example 1-3

[0085] A thermoplastic resin-based composite material, the composition of which is shown in Table 1 below. The preparation method of thermoplastic resin matrix composite material is:

[0086] Dry the raw PC resin at a temperature of 110°C for 4 hours;

[0087] Add the dried thermoplastic resin, compatibilizer, nucleating agent, antioxidant, other additives, and coupling agent into the mixer respectively, and stir and mix at a speed of 200-500 rpm for 3-5 minutes to obtain a mixed A uniform premix; adding carbon nanotubes to the premix, stirring and mixing at a speed of 200-500 rpm for 3-5 minutes to obtain a mixture;

[0088] The mixture is put into a twin-screw extruder, melted and extruded to granulate, water-cooled, air-dried, pelletized, and dried to obtain the thermoplastic resin-based conductive composite material; wherein, the processing conditions of the twin-screw extruder are as follows :

[0089] 1) The twin-screw extrusion temperature is: Zone 1: 230~250℃; Zone ...

Embodiment 5-8、 comparative example 4-6

[0101] A thermoplastic resin-based composite material, the composition of which is shown in Table 3 below. The preparation method of thermoplastic resin matrix composite material is:

[0102] Dry the raw material HIPS resin at a temperature of 85°C for 2 hours;

[0103] Add the dried thermoplastic resin, compatibilizer, nucleating agent, antioxidant, other additives, and coupling agent into the mixer respectively, and stir and mix at a speed of 200-500 rpm for 3-5 minutes to obtain a mixed A uniform premix; adding carbon nanotubes to the premix, stirring and mixing at a speed of 200-500 rpm for 3-5 minutes to obtain a mixture;

[0104] The mixture is put into a twin-screw extruder, melted and extruded to granulate, water-cooled, air-dried, pelletized, and dried to obtain the thermoplastic resin-based conductive composite material; wherein, the processing conditions of the twin-screw extruder are as follows :

[0105] 1), twin-screw extrusion temperature: Zone 1: 150-170°C; ...

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Abstract

The invention relates to the technical field of engineering plastics, and provides a thermoplastic resin-based conductive composite material and a preparation method thereof. The thermoplastic resin-based conductive composite material comprises the following components in parts by weight: 98.6-67 parts of thermoplastic resin; 1-15 parts of a carbon nanotube; 0-6 parts of a compatilizer; 0-5 parts of a nucleating agent; 0.2 to 1 part of an antioxidant; 0-2 parts of a coupling agent; and 0.2-4 parts of other additives; the content of the compatilizer, the content of the nucleating agent and the content of the coupling agent are all not zero. The thermoplastic resin-based conductive composite material provided by the invention is excellent in mechanical property and processability, and has the advantage of low volume resistivity.

Description

technical field [0001] The application belongs to the technical field of engineering plastics, and in particular relates to a thermoplastic resin-based conductive composite material and a preparation method thereof. Background technique [0002] Thermoplastics are a class of plastics that are plastic at a certain temperature, solidify after cooling, and can repeat this process. Thermoplastics have excellent mechanical properties, wear resistance, dimensional stability, chemical corrosion resistance, etc., and can be widely used in textile machinery, plastics, food, electronics, electrical, automobiles, light industry, chemical industry, construction and other fields. In the field of conductive / antistatic thermoplastics, currently, the conductivity and antistatic properties of products are mainly enhanced by adding conductive carbon black powder and carbon fiber to thermoplastic substrates. When adding carbon fiber as a conductive agent, although the amount of carbon fiber a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L23/12C08L23/06C08L33/20C08L55/02C08L25/06C08L81/02C08L59/00C08L61/02C08L101/12C08L51/06C08K13/02C08K3/04C08K5/00
CPCC08L69/00C08L51/04C08L23/12C08L23/06C08L33/20C08L55/02C08L25/06C08L81/02C08L59/00C08L61/02C08L101/12C08L2205/24C08L2205/02C08L2205/03C08K2201/005C08K2201/011C08K2201/001
Inventor 韩斌斌
Owner SHENZHEN XIWAN TECH CO LTD
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