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Highly flame-retardant polypropylene foaming sheet and preparation method thereof

A technology of foamed sheet and polypropylene, which is applied in the field of electronic irradiation crosslinked high flame-retardant polypropylene foamed sheet and its preparation, can solve the problem of large amount of flame retardant added, low flame retardant performance, and low foaming ratio. The mechanical properties are difficult to meet the needs of the market, etc., to achieve the effect of uniform foaming, improved performance, and fine cells

Inactive Publication Date: 2015-08-26
北京斯维浩特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, neither the expansion ratio nor the mechanical properties of the material can meet the needs of the market, and although the modified flame-retardant polypropylene material is widely used, the flame-retardant polypropylene material in the prior art requires a large amount of flame retardant , and low flame retardancy

Method used

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  • Highly flame-retardant polypropylene foaming sheet and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0026] Example 1 of the present invention provides a highly flame-retardant polypropylene foam sheet, which consists of the following components in parts by weight: 72 parts of polypropylene resin, 8 parts of polyethylene resin, 10 parts of polyethylene oxide resin, and 4 parts of crosslinking agent , 5 parts of anti-aging agent, 8 parts of foaming agent, 1.2 parts of composite intumescent flame retardant, 1 part of bromine nitrogen compound flame retardant, and 2 parts of halogen-free flame retardant.

[0027] The crosslinking agent is one of isooctyl acrylate, neopentyl glycol diacrylate, and pentaerythritol triacrylate.

[0028] The anti-aging agent is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0029] The foaming agent is one of azodicarbonamide and p-toluenesulfonamide semicarbazide.

[0030] The composite intumescent flame retardant is oligomeric bisphenol A phosphate melamine salt.

[0031] The bromine-nitrogen composite flame r...

Embodiment 2

[0043] Example 2 of the present invention provides a highly flame-retardant polypropylene foam sheet, which consists of the following components in parts by weight: 72 parts of polypropylene resin, 8 parts of polyethylene resin, 10 parts of polyethylene oxide resin, and 4 parts of crosslinking agent , 5 parts of anti-aging agent, 8 parts of foaming agent, 1.2 parts of composite intumescent flame retardant, 1 part of bromine nitrogen compound flame retardant, and 2 parts of halogen-free flame retardant.

[0044]The crosslinking agent is one of isooctyl acrylate, neopentyl glycol diacrylate, and pentaerythritol triacrylate.

[0045] The anti-aging agent is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0046] The foaming agent is one of azodicarbonamide and p-toluenesulfonamide semicarbazide.

[0047] The composite intumescent flame retardant is oligomeric bisphenol A phosphate melamine salt.

[0048] The bromine-nitrogen composite flame re...

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Abstract

The invention provides a highly flame-retardant polypropylene foaming sheet and a preparation method thereof. The highly flame-retardant polypropylene foaming sheet is prepared from the following components in parts by weight: 70-78 parts of polypropylene resin, 7-10 parts of polyethylene resin, 8-12 parts of polyoxyethylene resin, 4-6 parts of a cross-linking agent, 4-6 parts of an anti-aging agent, 5-10 parts of a foaming agent, 1-1.5 parts of a compound intumescent flame retardant, 1-2 parts of a bromine-nitrogen compound flame retardant and 1-2 parts of a halogen-free flame retardant. The highly flame-retardant polypropylene foaming sheet is remarkably improved in flame resistance, tensile strength, elongation at break and the like, and low in flame retardant dosage.

Description

technical field [0001] The invention relates to an electron irradiation crosslinked highly flame-retardant polypropylene foam sheet and a preparation method thereof. Background technique [0002] As a bulk product in the petrochemical field, polypropylene (PP) has the characteristics of wide sources, low cost and wide application. PP foam material improves the two shortcomings of PS and PE foam materials in terms of high temperature resistance and reuse. PP foam materials play an important role in packaging, construction and other fields, and can be used as cushioning packaging, sound insulation materials, and heat insulation materials. In addition to high heat resistance, high impact energy absorption capacity, good resilience and easy thermoforming, PP foam materials also have the advantage of being recyclable and recyclable, and can be used to manufacture auto parts. Cross-linked foamed PP is laminated with skin materials and cushioning materials, which can be manufactu...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L71/02C08K5/00C08K5/134C08K5/3492C08K5/06C08K5/20C08K5/5399C08J9/10C08J3/28C08J3/24
CPCC08L23/12C08J3/24C08J3/28C08J9/0061C08J9/103C08J9/104C08J2203/04C08J2323/12C08J2471/02C08K2201/014C08L2201/02C08L2203/14C08L2205/03C08L2312/06C08L23/06C08L71/02C08K5/00C08K5/1345C08K5/34928C08K5/06C08K5/20C08K5/5399
Inventor 韩文艺
Owner 北京斯维浩特新材料科技有限公司