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High-flame retardation chemically-crosslinked polyethylene foamed material and preparation method thereof

A polyethylene foaming and chemical cross-linking technology, which is applied in the field of high flame-retardant chemical cross-linked polyethylene foam materials, can solve the problems of improper types of flame retardants, low flame retardant effect, and difficulty in meeting requirements, etc.

Active Publication Date: 2013-08-07
宁波辉门科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing chemically cross-linked polyethylene foam materials are difficult to meet the requirements
(The main reason is that the type of polyethylene and the type of flame retardant are not properly selected in the formula, resulting in low flame retardant effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: A highly flame-retardant chemically cross-linked polyethylene foam material is prepared from a composition comprising the following components:

[0038] Foaming agent masterbatch 48% (weight percent);

[0039] Crosslinking agent masterbatch 14% (weight percent);

[0040] Flame retardant masterbatch 23% (weight percent);

[0041] Low density polyethylene 10% (weight percent);

[0042] Magnesium hydroxide masterbatch 5% (weight percent);

[0043] The foaming agent masterbatch is made by mixing low-density polyethylene and foaming agent, wherein the weight ratio of low-density polyethylene and foaming agent is 2:1; the cross-linking agent masterbatch is made by mixing low-density polyethylene and cross-linking agent The weight ratio of low density polyethylene and crosslinking agent is 20:1; the flame retardant masterbatch is made by mixing low density polyethylene and flame retardant, and the weight ratio of low density polyethylene and flame retardant I...

Embodiment 2

[0048] Embodiment 2: A highly flame-retardant chemically cross-linked polyethylene foam material is characterized in that it is made from a composition comprising the following components:

[0049] Foaming agent masterbatch 52.5% (weight percent);

[0050]Crosslinking agent masterbatch 11% (weight percent);

[0051] Flame retardant masterbatch 20% (weight percent);

[0052] Low density polyethylene 12.5% ​​(weight percent);

[0053] Magnesium hydroxide masterbatch 4% (weight percent);

[0054] The foaming agent masterbatch is made by mixing low-density polyethylene and foaming agent, wherein the weight ratio of low-density polyethylene and foaming agent is 2:1.5; the cross-linking agent masterbatch is made by mixing low-density polyethylene and cross-linking agent The weight ratio of low density polyethylene and crosslinking agent is 20:1.5; the flame retardant masterbatch is made by mixing low density polyethylene and flame retardant, and the weight ratio of low density po...

Embodiment 3

[0059] Embodiment 3: A highly flame-retardant chemically cross-linked polyethylene foam material is characterized in that it is made from a composition comprising the following components:

[0060] Foaming agent masterbatch 48.5% (weight percent);

[0061] Crosslinking agent masterbatch 11% (weight percent);

[0062] Flame retardant masterbatch 23% (weight percent);

[0063] Low density polyethylene 12.5% ​​(weight percent);

[0064] Magnesium hydroxide masterbatch 5% (weight percent);

[0065] The foaming agent masterbatch is made by mixing low-density polyethylene and foaming agent, wherein the weight ratio of low-density polyethylene and foaming agent is 2:1; the cross-linking agent masterbatch is made by mixing low-density polyethylene and cross-linking agent The weight ratio of low density polyethylene and crosslinking agent is 20:1; the flame retardant masterbatch is made by mixing low density polyethylene and flame retardant, and the weight ratio of low density polye...

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PUM

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Abstract

The invention discloses a high-flame retardation chemically-crosslinked polyethylene foamed material. The material is prepared from the following components by weight: 48 to 52.5% of a foaming agent master batch, 11 to 14% of a cross-linking agent master batch, 20 to 23% of a fire retardant master batch, 10 to 12.5% of low density polyethylene and 2 to 5% of a magnesium hydroxide master batch, wherein the foaming agent master batch is prepared by mixing the low density polyethylene and a foaming agent, the cross-linking agent master batch is prepared by mixing the low density polyethylene and a cross-linking agent, the fire retardant master batch is prepared by mixing the low density polyethylene and a fire retardant, and the magnesium hydroxide master batch is prepared by mixing the low density polyethylene and magnesium hydroxide. The invention has the following advantages: the prepared chemically-crosslinked polyethylene foamed material has a high flame retardation grade, reaching Grade B1 and has fine and compact surface foam pores.

Description

technical field [0001] The invention relates to a chemically cross-linked polyethylene foam material, in particular to a highly flame-retardant chemically cross-linked polyethylene foam material. Background technique [0002] Chemically cross-linked polyethylene foam (XPE) has excellent physical, chemical and mechanical properties, and is widely used in the fields of automobiles, sports, construction engineering, electronics, packaging and transportation. Electronic irradiation cross-linked polyethylene foam products have the advantages of reducing environmental pollution, easy control of the process, improving product quality, increasing production efficiency, and reducing scale production costs. [0003] Existing chemically cross-linked polyethylene foam materials are generally formed by continuous foaming at high temperature after mixing low-density polyethylene resin, cross-linking agent and foaming agent. At present, in order to improve the flame retardancy of chemical...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K3/22C08K5/14C08K5/03C08J3/22C08J9/04C08J3/24
Inventor 赵建忠闫术彪何朝武
Owner 宁波辉门科技有限公司
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