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A kind of anisotropic conductive polypropylene composite material and preparation method thereof

A composite material, anisotropic technology, applied in the field of anisotropic conductive polypropylene composite material and its preparation, can solve the problems of complex production cost, less research, etc. heterosexual effect

Active Publication Date: 2021-12-10
龙岩市润峰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of the existing anisotropic conductive materials, the conductive fibers need to be arranged in advance and then cast into shape; this method is complicated and the production cost is high
[0003] Polypropylene is a kind of thermoplastic resin prepared by polymerization of propylene; it is widely used in household appliances, plastic pipes and other fields; but there are few studies on anisotropic conductive polypropylene composite materials in the existing technology; Anisotropic conductive polypropylene composites are of great significance for broadening the application fields of polypropylene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 Preparation of anisotropic conductive polypropylene composite material

[0027] (1) Combine dopamine and Fe 3 o 4 The magnetic particles were added to deionized water and ultrasonicated at 25°C for 1.5h; the product was precipitated with excess acetone, and after centrifugal drying, dopamine was loaded with Fe 3 o 4 ;

[0028] In this step, dopamine, Fe 3 o 4 The dosage ratio of magnetic particles and deionized water is 1g:1.5g:15mL; the Fe 3 o 4 The magnetic particles are prepared by the following method: First, prepare ferric chloride solution and ferrous chloride solution, then mix the same amount of ferric chloride solution and ferrous chloride solution, stir them evenly, and transfer them to a hydrothermal kettle , reacted at 230°C for 6h to obtain the Fe 3 o 4 Magnetic particles; the preparation method of the ferric chloride solution is: take ferric chloride hexahydrate and polyethylene glycol 20000 and add them to a mixed solvent composed of...

Embodiment 2

[0034] Embodiment 2 Preparation of anisotropic conductive polypropylene composite material

[0035] (1) Combine dopamine and Fe 3 o 4 The magnetic particles were added to deionized water and sonicated at 30°C for 1 h; the product was precipitated with excess acetone, and after centrifugation and drying, dopamine was loaded with Fe 3 o 4 ;

[0036] In this step, dopamine, Fe 3 o 4 The dosage ratio of magnetic particles and deionized water is 1g:1g:10mL; the Fe 3 o 4 The magnetic particles are prepared by the following method: First, prepare ferric chloride solution and ferrous chloride solution, then mix the same amount of ferric chloride solution and ferrous chloride solution, stir them evenly, and transfer them to a hydrothermal kettle , reacted at 230°C for 6h to obtain the Fe 3 o 4 Magnetic particles; the preparation method of the ferric chloride solution is: take ferric chloride hexahydrate and polyethylene glycol 20000 and add them to a mixed solvent composed of ...

Embodiment 3

[0042] Embodiment 3 Preparation of anisotropic conductive polypropylene composite material

[0043] (1) Combine dopamine and Fe 3 o 4 The magnetic particles were added to deionized water, and ultrasonicated at 20°C for 2 hours; the product was precipitated with excess acetone, and after centrifugal drying, dopamine was loaded with Fe 3 o 4 ;

[0044] In this step, dopamine, Fe 3 o 4 The dosage ratio of magnetic particles and deionized water is 1g:2g:20mL; the Fe 3 o 4 The magnetic particles are prepared by the following method: First, prepare ferric chloride solution and ferrous chloride solution, then mix the same amount of ferric chloride solution and ferrous chloride solution, stir them evenly, and transfer them to a hydrothermal kettle , reacted at 230°C for 6h to obtain the Fe 3 o 4 Magnetic particles; the preparation method of the ferric chloride solution is: take ferric chloride hexahydrate and polyethylene glycol 20000 and add them to a mixed solvent composed ...

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PUM

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Abstract

The invention relates to the technical field of polypropylene composite material preparation, and specifically discloses an anisotropic conductive polypropylene composite material and a preparation method thereof. Contain the following steps: (1) combine dopamine and Fe 3 o 4 Add magnetic particles into deionized water, sonicate at 20-30°C for 1-3 hours; precipitate the product with an organic solvent, centrifuge and dry, and then dopamine-loaded Fe 3 o 4 ; (2) load Fe with dopamine 3 o 4 , multi-walled carbon nanotubes and ethylene-vinyl acetate copolymer are added to an organic solvent and ultrasonicated for 1 to 3 hours, and then the organic solvent is removed and cast to prepare a film to obtain EVA / MWNT / Fe 3 o 4 Composite membrane; (3) EVA / MWNT / Fe 3 o 4 The composite film is melt blended with polypropylene, and extruded through a twin-screw extruder to obtain PP / EVA / MWNT / Fe 3 o 4 Composite material masterbatch, and then prepared PP / EVA / MWNT / Fe by injection molding 3 o 4 Composite slats; (4) PP / EVA / MWNT / Fe 3 o 4 The composite material slats are placed in a magnetic field of 20-30 mT for 5-15 minutes at 160-200° C. to obtain anisotropic conductive polypropylene composite material. The anisotropic conductive polypropylene composite material prepared by the method exhibits excellent anisotropic conductive properties.

Description

technical field [0001] The invention relates to the technical field of polypropylene composite material preparation, in particular to an anisotropic conductive polypropylene composite material and a preparation method thereof. Background technique [0002] Anisotropy means that all or part of the chemical and physical properties of a substance change with the change of direction, showing different properties in different directions. In a specific application process, conductive materials often only need to conduct electricity in a specific direction better than other directions, and this type of material is the so-called anisotropic conductive material. However, in the preparation process of the existing anisotropic conductive materials, the conductive fibers need to be arranged in advance and then cast into shape; this method is complicated and the production cost is high. [0003] Polypropylene is a kind of thermoplastic resin prepared by polymerization of propylene; it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/08C08K9/04C08K3/22C08K3/04C08J5/18C08J3/28
Inventor 尹可阳
Owner 龙岩市润峰科技有限公司