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High-toughness high-flame-retardance PVC wood-plastic composite material and preparation method thereof

A wood-plastic composite material, high flame-retardant technology, applied in the field of wood-plastic composite materials, can solve the problems of high brittleness of wood-plastic composite materials, failure to achieve flame-retardant effect, low impact strength, etc., to achieve uniform distribution and reduce heat release Speed, the effect of improving impact strength

Pending Publication Date: 2020-05-08
安徽霖园外新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC wood-plastic composite material is a new material made of plant fiber or powder as the main component and compounded with polyvinyl chloride resin. It has the advantages of moisture-proof, mildew-proof, and sound insulation, but there are also many shortcomings. On the one hand, There are a large number of polar C-Cl bonds in the molecular chain structure of the PVC resin used, and there is a large force between the molecules. Therefore, the prepared wood-plastic composite material has the defects of high brittleness, low impact strength, and poor toughness. It is easy to be brittle when impacted. On the other hand, there are flammable substances such as plant fibers in it, which makes it easy to burn. It cannot achieve effective flame retardant effect in case of fire. This makes PVC wood-plastic composite materials greatly affected in the application process. limit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-toughness and high-flame-retardant PVC wood-plastic composite material. The raw materials include: 100 parts of PVC resin, 44 parts of rice husk powder, 15 parts of processing modifier ACR-4015 parts, 1.5 parts of azodicarbonamide, and rosin acid in parts by weight. 1 part of sucrose ester, 1 part of zinc oxide, 4 parts of methyl tin mercaptide, 3 parts of modified linear low density polyethylene, 6.5 parts of attapulgite, 3.2 parts of halloysite, 2 parts of nano barium sulfate, polyacrylonitrile 5 parts of base carbon fiber, 5.5 parts of composite flame retardant; wherein, the composite flame retardant is a mixture of sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and diethyl aluminum hypophosphite, and the sea The weight ratio of pumice, boron phosphate, melamine polyphosphate, ammonium octamolybdate and aluminum diethyl hypophosphite is 3:6:4:3:5.

[0024] The present invention also proposes a preparation method of the high-toughnes...

Embodiment 2

[0030] A PVC wood-plastic composite material with high toughness and high flame retardancy, its raw materials include: 100 parts of PVC resin, 38 parts of rice husk powder with a particle size of 80 mesh, 16.5 parts of processing modifier ACR-401, and azodicarbonamide 1.5 parts, 1 part of rosin acid sucrose ester, 1 part of zinc oxide, 5 parts of tribasic lead sulfate, 6 parts of modified linear low density polyethylene, 3 parts of attapulgite, 5 parts of halloysite, 6 parts of nano barium sulfate 3 parts, 3 parts of polyacrylonitrile-based carbon fiber, 9 parts of composite flame retardant; wherein, the composite flame retardant is composed of sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and aluminum diethyl hypophosphite and the weight ratio of sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and aluminum diethyl hypophosphite is 6:2:12:5:7.

[0031] The present invention also proposes a preparation method of the high-t...

Embodiment 3

[0037] A high-toughness and high-flame-retardant PVC wood-plastic composite material. The raw materials include: 100 parts of PVC resin, 40 parts of peanut shell powder with a particle size of 120 mesh, 13 parts of processing modifier ACR-4013, and azodicarbonamide 1.5 parts, 0.5 parts of rosin acid sucrose ester, 0.5 parts of zinc oxide, 2 parts of zinc stearate, 1.8 parts of calcium stearate, 4 parts of modified linear low density polyethylene, 6 parts of attapulgite, 1 part of halloysite 3 parts, 3 parts of nano-barium sulfate, 2 parts of polyacrylonitrile-based carbon fiber, 9.6 parts of composite flame retardant; wherein, the composite flame retardant is sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and two A mixture composed of aluminum ethyl hypophosphite, and the weight ratio of sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and aluminum diethyl hypophosphite is 4:5:7:9:2.

[0038] The present invention also prop...

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Abstract

The invention discloses a high-toughness high-flame-retardance PVC wood-plastic composite material. The composite material is prepared from the following raw materials: PVC resin, plant powder, a processing modifier ACR-401, a foaming agent, a heat stabilizer, modified linear low-density polyethylene, attapulgite, halloysite, nanometer barium sulfate, polyacrylonitrile-based carbon fibers and a composite flame retardant, wherein the composite flame retardant is a mixture composed of sepiolite, boron phosphate, melamine polyphosphate, ammonium octamolybdate and diethyl aluminum hypophosphite ina weight ratio of (3-6): (2-6): (4-12): (3-9): (2-7). The preparation method of the high-toughness high-flame-retardance PVC wood-plastic composite material is simple in process, and the obtained wood-plastic composite material is high in impact strength, good in toughness, excellent in flame retardance and long in service life.

Description

technical field [0001] The invention relates to the technical field of wood-plastic composite materials, in particular to a high-toughness and high-flame-retardant PVC wood-plastic composite material and a preparation method thereof. Background technique [0002] PVC wood-plastic composite material is a new material made of plant fiber or powder as the main component and compounded with polyvinyl chloride resin. It has the advantages of moisture-proof, mildew-proof, and sound insulation, but there are also many shortcomings. On the one hand, There are a large number of polar C-Cl bonds in the molecular chain structure of the PVC resin used, and there is a large force between the molecules. Therefore, the prepared wood-plastic composite material has the defects of high brittleness, low impact strength, and poor toughness. It is easy to be brittle when impacted. On the other hand, there are flammable substances such as plant fibers in it, which makes it easy to burn. It cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L51/06C08L33/12C08K13/04C08K3/34C08K3/38C08K5/3492C08K3/24C08K5/5313C08K7/06C08J9/04C08J9/10C08F255/02C08F222/06C08F220/14
CPCC08J9/0061C08J9/102C08J9/04C08J9/0095C08J9/0066C08J9/0028C08J9/0038C08J9/0071C08J9/0085C08F255/02C08J2327/06C08J2451/06C08J2433/12C08F222/06C08F220/14
Inventor 安文超张雷杨继文马洁黄永察
Owner 安徽霖园外新材料有限公司
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