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A low-smoke and halogen-free environmentally friendly eva/lldpe flame-retardant composite material

A kind of flame-retardant composite material and environmental protection technology, applied in the field of low-smoke, halogen-free and environmentally friendly EVA/LLDPE flame-retardant composite materials

Inactive Publication Date: 2016-05-25
杭州科佳新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the flame retardant performance of the existing EVA materials, to provide a low-smoke and halogen-free environmentally friendly EVA / LLDPE flame-retardant composite material and its preparation method, and the prepared EVA / LLDPE composite material has good flame-retardant performance, High tensile strength and elongation at break

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Preparation of modified magnesium hydroxide and modified aluminum hydroxide

[0022] It is obtained by adding KH550 silane coupling agent and JL-G02FL ultra-dispersed coupling modifier to the pulp after ultrafine grinding of brucite, stirring for 60 minutes, and then filtering and drying. The dosage of KH550 silane coupling agent is water magnesium 0.4% of the weight of brucite ore powder, and the dosage of JL-G02FL hyperdispersive coupling modifier is 1.2% of the weight of brucite ore powder.

[0023] The modified aluminum hydroxide is dry modified aluminum hydroxide with silane coupling agent ZQ-172, and the dosage of silane coupling agent ZQ-172 is 0.8% of the weight of aluminum hydroxide.

[0024] (2) Raw material formula

[0025] Ethylene-vinyl acetate copolymer EVA85 parts

[0026] 15 parts of linear low density polyethylene LLDPE;

[0027] 30 parts of maleic anhydride grafted polyethylene PE-g-MAH;

[0028] 80 parts of modified magnesium hydroxide;

[00...

Embodiment 2

[0037] (1) Preparation of modified magnesium hydroxide and modified aluminum hydroxide

[0038] It is obtained by adding KH550 silane coupling agent and JL-G02FL ultra-dispersed coupling modifier to the pulp after ultrafine grinding of brucite, stirring for 30 minutes, and then filtering and drying. The dosage of KH550 silane coupling agent is water magnesium 0.8% of the weight of brucite ore powder, and the dosage of JL-G02FL hyperdispersive coupling modifier is 0.9% of the weight of brucite ore powder.

[0039] The modified aluminum hydroxide is dry modified aluminum hydroxide with silane coupling agent ZQ-172, and the dosage of silane coupling agent ZQ-172 is 1.2% of the weight of aluminum hydroxide.

[0040] (2) Raw material formula

[0041] Ethylene-vinyl acetate copolymer EVA87.5 parts

[0042] 12.5 parts of linear low density polyethylene LLDPE;

[0043] 25 parts of maleic anhydride grafted polyethylene PE-g-MAH;

[0044] 90 parts of modified magnesium hydroxide;

...

Embodiment 3

[0052] (1) Modified magnesium hydroxide and modified aluminum hydroxide

[0053] Modified magnesium hydroxide is manufactured by Wuxi Yingpuli Flame Retardant Material Co., Ltd.

[0054] The modified aluminum hydroxide is dry modified aluminum hydroxide with silane coupling agent ZQ-172, and the dosage of silane coupling agent ZQ-172 is 1.0% of the weight of aluminum hydroxide.

[0055] (2) Raw material formula

[0056] Ethylene-vinyl acetate copolymer EVA88.8 parts

[0057] Linear low density polyethylene LLDPE11.2 parts;

[0058] 20 parts of maleic anhydride grafted polyethylene PE-g-MAH;

[0059] 85 parts of modified magnesium hydroxide;

[0060] 95 parts of modified aluminum hydroxide;

[0061] Antioxidant 10101.0 parts;

[0062] 1.5 parts of PE wax;

[0063] 2.5 parts of erucic acid.

[0064] (3) Preparation method

[0065] Fully mix EVA, LLDPE, PE-g-MAH, modified magnesium hydroxide, and modified aluminum hydroxide, then add antioxidant 1010, PE wax, erucic acid...

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PUM

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Abstract

The invention discloses a low-smoke zero-halogen environment-friendly EVA / LLDPE (Ethylene Vinyl Acetate / Linear Low-Density Poly Ethylene) flame resistant composite material, which is composed of the following raw material components in parts by weight: A basic resin: 100 parts of EVA and LLDPE; B compatilizer: 20-30 parts of maleic anhydride grafted polyethylene PE-g-MAH; C inorganic flame retardant: 80-90 parts of modified magnesium hydroxide and 90-100 parts of modified aluminum hydroxide; 0.5-1 part of D antioxidant; and 2.5-4 parts of E lubricant. The preparation method comprises the steps of evenly mixing the raw materials, plasticizing at a temperature ranging from 140 to 150 DEG C and vulcanizing at a temperature ranging from 160 to 180 DEG C to obtain the low-smoke zero-halogen environment-friendly EVA / LLDPE flame resistant composite material. The low-smoke zero-halogen environment-friendly EVA / LLDPE flame resistant composite material prepared by the method provided by the invention is excellent in flame resistance, and in the meantime, excellent in tensile strength and elongation at break.

Description

technical field [0001] The invention belongs to the technical field of EVA materials, and in particular relates to a low-smoke, halogen-free and environment-friendly EVA / LLDPE flame-retardant composite material. Background technique [0002] Ethylene-vinyl acetate copolymer (EVA) is widely used in foaming materials, functional shed films, packaging films, hot melt adhesives, Wire and cable and toys and other fields. However, EVA, like most polymers, is easy to burn, has a large heat release, a large amount of smoke, and releases toxic gases, which greatly limits the application of EVA. [0003] Halogen-containing flame retardants have excellent flame-retardant properties and have been widely used. However, when a fire occurs, such halogen-containing flame-retardant materials will produce a large amount of smoke and toxic corrosive hydrogen halide gas, causing "secondary hazards" . [0004] In view of the above problems, the present invention adopts a halogen-free, low-smo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L51/06C08K13/06C08K9/06C08K3/22C08K5/134C08K5/09C08K5/526C08K5/372
CPCC08K3/22C08K9/04C08K9/06C08K2003/2224C08K2003/2227C08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2205/02C08L2205/035C08L23/0815C08L51/06C08L23/06C08K13/06
Inventor 陈旭
Owner 杭州科佳新材料股份有限公司
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