Flame-retardant plastic modified material for extrusion molding of automobile corrugated pipe, and preparation method thereof

A technology of extrusion molding and modified materials, which is applied in the field of plastic modified materials and can solve problems such as poor heat resistance

Active Publication Date: 2013-08-14
东莞国立高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Automotive corrugated pipes are used in automobile wiring harnesses, and plastic (PA, PE, PP, PVC) corrugated pipes are generally used. Each of the above-mentioned corrugated pipes has its own advantages and disadvantages. For example, PVC materials have poor heat resistance, while PP or PE materials The mechanical properties of the bellows made of PA are a little worse than those of PA bellows, but they are better than PA bellows in terms of product stability and water absorption.

Method used

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  • Flame-retardant plastic modified material for extrusion molding of automobile corrugated pipe, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] A flame-retardant plastic modified material for extrusion molding of automobile bellows, which consists of the following raw materials in parts by weight: 40 parts of PA6 resin with a viscosity of 2.8mpa.s, 15 parts of LDPE resin, 5 parts of PA12, 5 parts of EPDM-G-MAH, 18 parts of DBDPE, Sb 2 o 3 5 parts, black mother 2 parts, antioxidant 1010 0.2 parts, zinc stearate 0.3 parts, EBS 0.3 parts, methyl silicone oil 0.2 parts.

[0117] A method for preparing a flame-retardant plastic modified material for extrusion molding of automobile bellows, comprising the following preparation steps:

[0118] Step A. by weight, PA6 resin, LLDPE resin, PA12, EPDM-G-MAH, DBDPE, Sb 2 o 3 , black masterbatch, antioxidant 1010, zinc stearate, EBS, and methyl silicone oil were put into a high-speed mixer and stirred for 3 minutes to form mixture I;

[0119] Step B. Put the mixture I into a twin-screw extruder, melt and extrude at 230°C, and then cool, air-dry, and pelletize to obtain ...

Embodiment 2

[0121] A flame-retardant plastic modified material for extrusion molding of automobile bellows, which consists of the following raw materials in parts by weight: 35 parts of PA6 resin with a viscosity of 2.8mpa.s, 16 parts of LLDPE resin, 10 parts of PA12, EPDM-G-MAH 7 parts, DBDPE 20 parts, Sb 2 o 3 6 parts, 2 parts of black mother, 0.2 part of antioxidant 1010, 0.3 part of zinc stearate, 0.3 part of EBS, 0.2 part of methyl silicone oil.

[0122] A method for preparing a flame-retardant plastic modified material for extrusion molding of automobile bellows, comprising the following preparation steps:

[0123] Step A. by weight, PA6 resin, LLDPE resin, PA12, EPDM-G-MAH, DBDPE, Sb 2 o 3 , black masterbatch, antioxidant 1010, zinc stearate, EBS, and methyl silicone oil were put into a high-speed mixer and stirred for 3 minutes to form mixture I;

[0124] Step B. Put the mixture I into a twin-screw extruder, melt and extrude at 232°C, and then cool, air-dry, and pelletize to ob...

Embodiment 3

[0126] A flame-retardant plastic modified material for extrusion molding of automobile bellows, which consists of the following raw materials in parts by weight: 45 parts of PA6 resin with a viscosity of 2.8mpa.s, 15 parts of LLDPE resin, 10 parts of PA12, EPDM-G-MAH 5 parts, DBDPE 18 parts, Sb 2 o 3 5 parts, black mother 5 parts, antioxidant 1076 0.2 parts, zinc stearate 0.3 parts, EBS 0.3 parts, methyl silicone oil 0.2 parts.

[0127] A method for preparing a flame-retardant plastic modified material for extrusion molding of automobile bellows, comprising the following preparation steps:

[0128] Step A. by weight, PA6 resin, LLDPE resin, PA12, EPDM-G-MAH, DBDPE, Sb 2 o 3 , black masterbatch, antioxidant, zinc stearate, EBS, and methyl silicone oil were put into a high-speed mixer and stirred for 3 minutes to form mixture Ⅰ;

[0129] Step B. Put the mixture I into a twin-screw extruder, melt and extrude at 250°C, and then cool, air-dry, and pelletize to obtain the flame...

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Abstract

The invention relates to the technical field of a plastic modified material, and in particular relates to a flame-retardant plastic modified material for the extrusion molding of an automobile corrugated pipe, and a preparation method thereof; and the flame-retardant plastic modified material for the extrusion molding of the automobile corrugated pipe comprises the following raw materials: 35-50 parts of polyamide 6 (PA 6) resin, 15-25 parts of linear low density polyethylene (LLDPE) resin, 10-20 parts of PA 12, 3-12 parts of ethylene-propylene-diene monomer (EPDM)-G-maleic anhydride (MAH), 15-25 parts of decabromodiphenylethane (DBDPE), 3-8 parts of Sb2O3, 1-5 parts of black master batch, 0.2-0.6 part of an antioxidant, 0.1-0.5 part of zinc stearate, 0.1-0.5 part of ethylene bis stearamide (EBS) and 0.1-0.5 part of methyl silicone oil. The flame-retardant plastic modified material is good in heat resistance and cold endurance, has the performances such as good tensile strength and impact strength, and has the flame retardant property reaching up to UL94-V0. The flame-retardant plastic modified material is simple in preparation method and few in needed equipment, thus not only improving the production efficiency and saving the production cost.

Description

technical field [0001] The invention relates to the technical field of plastic modified materials, in particular to a flame-retardant plastic modified material for extrusion molding of automobile bellows and a preparation method thereof. Background technique [0002] The improvement of people's consumption ability has led to the rapid development of the automobile industry, among which the growth of passenger cars is particularly rapid. To resist extreme cold and extreme heat, but also to protect the safety of drivers and passengers. Automobile bellows are commonly used in automobiles. Previously, automobile bellows were mainly imported, with high cost and long production cycle; with the improvement of domestic auto parts manufacturing technology, and getting rid of the limitations of importing auto parts and engines, domestic experts and engineers A lot of research and technical improvements were done. [0003] Automotive corrugated pipes are used in automobile wiring har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/08C08L51/00C08L83/04C08K13/02C08K5/03C08K3/22C08K5/098C08K5/20
Inventor 邹志勇
Owner 东莞国立高分子材料有限公司
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