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A kind of polypropylene foam material and preparation method thereof

A foaming material, polypropylene technology, applied in the field of polypropylene foaming material and its preparation, can solve problems such as limiting the application range of products and reducing impact performance, achieve uniform foaming, maintain impact performance, and reduce cell diameter Effect

Active Publication Date: 2022-06-07
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impact performance after foaming is greatly reduced, which limits the application range of the product

Method used

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  • A kind of polypropylene foam material and preparation method thereof
  • A kind of polypropylene foam material and preparation method thereof
  • A kind of polypropylene foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] As a polypropylene foam material of an embodiment of the present invention, it includes the following components in parts by weight: 70 parts of polypropylene resin; 17 parts of toughening agent; 3 parts of low-density polyethylene, 10 parts of talcum powder, and compatibilizer 0.5 part, auxiliary agent and foaming agent 3 parts; compatibilizer is polyolefin graft, polyolefin graft is PP grafted maleic anhydride, and toughener is ethylene-octene copolymer;

[0021] The toughening agent is ethylene-octene copolymer with a density of 0.864g / cm 3 , the melt mass flow rate of the toughener at 190°C and 2.16Kg load is 13g / 10min, source: DOW, USA;

[0022] The additives include 0.2 part of antioxidant 1010, 0.2 part of antioxidant 168, 0.2 part of light stabilizer 3808PP5 and 0.2 part of calcium stearate;

[0023] The polypropylene resin is a copolymerized polypropylene resin. The melt mass flow rate of the copolymerized polypropylene resin at 230°C and a load of 2.16Kg is 1...

Embodiment 2

[0026] As a polypropylene foam material of the embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is: 70 parts of polypropylene resin; 14 parts of toughening agent; 6 parts of low density polyethylene, 10 parts of talcum powder, 0.5 part of compatibilizer, 3 parts of auxiliary agent and foaming agent.

Embodiment 3

[0028] As a polypropylene foam material of the embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is: 70 parts of polypropylene resin; 11 parts of toughening agent; 9 parts of low density polyethylene, 10 parts of talc, 0.5 part of compatibilizer, 3 parts of auxiliary agent and foaming agent.

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Abstract

The invention provides a polypropylene foam material and a preparation method thereof, comprising the following components in parts by weight: 65-90 parts of polypropylene resin; 1-20 parts of toughening agent; 1-20 parts of low-density polyethylene, 5-15 parts of talcum powder, 0.1-1 part of compatibilizer, 0.2-2 parts of auxiliary agent and foaming agent; the compatibilizer is a polyolefin graft, and the polyolefin graft is PP Grafted maleic anhydride, POE grafted maleic anhydride or PE grafted maleic anhydride, the toughening agent is ethylene-butene copolymer, ethylene-octene copolymer. After the polypropylene foam material of the present invention is matched with polypropylene resin, low-density polyethylene, ethylene-butene copolymer as toughening agent, ethylene-octene copolymer and polyolefin graft as compatibilizer, it can be The melt strength is improved, the cell diameter is reduced, the foaming is more uniform, the foaming performance of the polypropylene foam material is improved, and the impact performance of the polypropylene foam material after foam molding can be significantly improved.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a polypropylene foam material and a preparation method thereof. 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 fields. For the automotive industry, polypropylene is mainly used in automotive interior and exterior trim parts, interior parts such as instrument panels, door panels and pillars, and exterior parts such as bumpers, fenders, and air deflectors. With the advancement of energy saving, emission reduction and automobile light weight year by year, foam molding polypropylene technology is also being promoted in the field of auto parts. ) is transitioning to the second generation (10% talc filled), and development of the third generation (unfilled) has already begun. [0003] In order to improv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08L23/06C08L51/06C08L23/08C08K13/02C08K3/34C08K5/098C08K5/134C08K5/526C08J9/04
CPCC08J9/04C08J9/0061C08J9/0023C08J9/0038C08J9/0066C08J9/0095C08J2323/14C08J2423/06C08J2451/06C08J2423/08C08K13/02C08K3/34C08K5/098C08K5/1345C08K5/526
Inventor 胡佳旭黄险波叶南飚吴国峰俞飞李伟陈嘉杰
Owner KINGFA SCI & TECH CO LTD