Polypropylene foam material and preparation method thereof

A foaming material and polypropylene technology, applied in the field of foaming materials, can solve the problems of large cell diameter, insufficient low temperature resistance, poor cell uniformity, etc., and achieve the effect of causing secondary pollution and 100% recycling.

Active Publication Date: 2017-10-24
TIANJIN DALIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, most of the existing polypropylene foam materials have poor cell uniformity, large cell diameter, poor toughness, and obviously insufficient low temper

Method used

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  • Polypropylene foam material and preparation method thereof
  • Polypropylene foam material and preparation method thereof
  • Polypropylene foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] A polypropylene foam material, including the following components in parts by weight:

[0047] Base resin: 40 parts by weight of high melt strength polypropylene, 40 parts by weight of polypropylene random copolymer, 5-30 parts by weight of low-density polyethylene;

[0048] The gas nucleating agent is talc powder: 0.2 parts by weight of talc powder is added to every 100 parts by weight of the matrix resin;

[0049] The physical blowing agent is supercritical butane: 15 parts by weight of supercritical butane are added to every 100 parts by weight of the matrix resin;

[0050] Antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester: 0.6 parts by weight per 100 parts by weight of the base resin;

[0051] The cell stabilizer is monoglyceride: 1.5 parts by weight per 100 parts by weight of the matrix resin are added.

[0052] The preparation method of the polypropylene foam material in this embodiment is:

[0053] (1) Add th...

Example Embodiment

[0057] Example 2

[0058] A polypropylene foam material, including the following components in parts by weight:

[0059] Matrix resin: 50 parts by weight of high melt strength polypropylene, 45 parts by weight of polypropylene random copolymer, 5 parts by weight of low density polyethylene;

[0060] The gas nucleating agent is a 1:4 mixture of silica and talc: 0.2 parts by weight per 100 parts by weight of matrix resin are added;

[0061] The physical blowing agent is a 1:6 mixture of supercritical carbon dioxide and supercritical butane: 3 parts by weight are added for every 100 parts by weight of the matrix resin;

[0062] The antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate: 0.6 parts by weight are added for every 100 parts by weight of the base resin;

[0063] The cell stabilizer is monoglyceride: 1.1 parts by weight are added per 100 parts by weight of the matrix resin.

[0064] The preparation method of the polypropylene foam material in this embodiment is...

Example Embodiment

[0069] Example 3

[0070] A polypropylene foam material, including the following components in parts by weight:

[0071] Matrix resin: 60 parts by weight of high melt strength polypropylene, 30 parts by weight of polypropylene random copolymer, and 10 parts by weight of low-density polyethylene;

[0072] The gas nucleating agent is talc: 0.3 parts by weight per 100 parts by weight of matrix resin are added;

[0073] The physical blowing agent is supercritical nitrogen: add 5 parts by weight of supercritical nitrogen to every 100 parts by weight of the matrix resin;

[0074] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester: 0.6 parts by weight per 100 parts by weight of the base resin are added;

[0075] The cell stabilizer is monoglyceride: 1.8 parts by weight per 100 parts by weight of matrix resin are added.

[0076] The preparation method of the polypropylene foam material in this embodiment is:

[0077] (1) Add the high melt strengt...

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Abstract

The invention provides a polypropylene foam material and a preparation method thereof. The polypropylene foam material comprises matrix resin which is composed of, by weight, 30 to 70 parts of polypropylene with high melt strength, 10 to 50 parts of a polypropylene random copolymer and 5 to 30 parts of low-density polyethylene; and the polypropylene foam material further comprises, on the basis of 100 parts by weight of the matrix resin, 0.1 to 0.5 part by weight of a gas nucleating agent, 5 to 16 parts by weight of a physical foaming agent, 0.5 to 1 part by weight of an antioxidant and 1 to 10 parts by weight of a cell stabilizer. The polypropylene foam material provided by the invention has the advantages of good cell homogeneity, large cell density and no secondary environmental pollution.

Description

technical field [0001] The invention belongs to the field of foam materials, and in particular relates to a polypropylene foam material and a method for preparing a polypropylene foam sheet or plate by a physical method. Background technique [0002] Foam plastic is a kind of polymer material formed by a large number of gas micropores dispersed in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, anti-corrosion, and low price, and its dielectric properties are better than matrix resin. Therefore, it is widely used in daily packaging, agriculture, industry, aerospace, transportation, military and other fields. [0003] Expanded polypropylene (EPP) is a high-crystallinity polypropylene / gas composite material with excellent performance. It has become the fastest-growing new environmental protection, pressure-resistant, cushioning and heat-insulating material in recent years due to its unique properties. . EPP produ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/06C08K13/02C08K3/26C08K3/34C08K3/36C08J9/14C08J9/12B29C44/50B29C44/34
CPCB29C44/3442B29C44/50C08J9/122C08J9/141C08J2203/06C08J2203/08C08J2203/14C08J2203/182C08J2323/12C08J2323/14C08J2423/12C08J2423/14C08K2003/265C08L23/12C08L23/14C08L2203/14C08L2205/03C08L2205/24C08L2207/066C08L2207/14C08L23/06C08K13/02C08K3/26C08K3/34C08K3/36
Inventor 冷栋梁闫达陈丁猛杨丽含刘东方常秀娟
Owner TIANJIN DALIN NEW MATERIAL TECH
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