Electromagnetic shielding polypropylene composition as well as preparation method and application thereof

A polypropylene composition, electromagnetic shielding technology, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of material mechanical properties decline, etc., to achieve the effect of improving mechanical properties, low odor, and excellent electromagnetic shielding effect

Active Publication Date: 2022-02-11
WUHAN JINFA TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent (CN108690262A) discloses a modified graphene-modified antistatic polypropylene composite material and its preparation method. Modified graphene is used to improve electrical conductivity, but the added graphene will lead to mechanical properties of the material decline

Method used

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  • Electromagnetic shielding polypropylene composition as well as preparation method and application thereof
  • Electromagnetic shielding polypropylene composition as well as preparation method and application thereof
  • Electromagnetic shielding polypropylene composition as well as preparation method and application thereof

Examples

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preparation example Construction

[0080] The preparation method of the electromagnetic shielding polypropylene composition of embodiment and comparative example, comprises the steps:

[0081] S1. Mix the polypropylene resin, MOFs-porous carbon material and processing aid evenly to obtain a premix;

[0082] S2. Extrude the premixed material in step S1, feed the talcum powder through the side of the extruder, knead, melt and homogenize, then extrude and granulate to obtain the electromagnetic shielding polypropylene composite material.

Embodiment 1～11

[0084] Examples 1-11 provide a series of electromagnetic shielding polypropylene compositions, and the specific formulations are shown in Table 1.

[0085] The formula (part) of table 1 embodiment 1~11

[0086]

[0087]

Embodiment 12～14 and comparative example 1～6

[0089] Examples 12-14 and Comparative Examples 1-6 provide a series of polypropylene compositions, and the specific formulations are shown in Table 2.

[0090] Table 2 The formula (part) of embodiment 12~14 and comparative example 1~6

[0091]

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Abstract

The invention provides an electromagnetic shielding polypropylene composition as well as a preparation method and application thereof. The electromagnetic shielding polypropylene composition comprises the following components in parts by weight: 60 to 80 parts of polypropylene resin, 1 to 5 parts of an MOFs-porous carbon material, 5 to 30 parts of talcum powder, 15 to 20 parts of a toughening agent, and 0.3 to 1 part of a processing aid, wherein the metal center of MOFs in a MOFs-porous carbon material is magnetic metal; the pore diameter of the MOFs-porous carbon material is 0.3 to 0.55 nm; the pore volume is 0.4 to 0.65 cm<3>/g; and the specific surface area is 1200-1700 m<2>/g. By adding the MOFs-porous carbon material, the mechanical property and the electromagnetic shielding effect can be improved, and the MOFs-porous carbon material also has an odor adsorption effect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an electromagnetic shielding polypropylene composition and its preparation method and application. Background technique [0002] Polypropylene (PP) has the advantages of low density, easy processing, and excellent mechanical properties, and has been widely used in the automotive industry, home appliances, and machinery. For the automobile industry, polypropylene is mainly used in interior and exterior parts of automobiles, interior parts such as instrument panels, door panels and pillars, etc., and exterior parts such as bumpers, fenders, deflectors, etc. With the rapid development of electronics and information technology, the demand for conductive materials is becoming more and more urgent. Conductive materials have a wide range of applications in fields such as antistatic and electromagnetic shielding. [0003] With the rise of intelligent driving control in the au...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L87/00C08L23/08C08K3/04C08K3/34C08G83/00H05K9/00
CPCC08L23/14C08G83/008H05K9/0081C08K2201/011C08K2201/001C08L87/00C08L23/0815C08K3/042C08K3/34Y02A30/00
Inventor 付伟陈平绪叶南飚何浏炜赖昂陈瑶陈胜杰熊值郭文举
Owner WUHAN JINFA TECH CO LTD
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