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A flame-retardant polyolefin wood-plastic co-extrusion profile and its preparation method

A polyolefin, extrusion technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problem of low flame retardant level, improve the flame retardant safety performance, expand the scope of application, improve The effect of safety fire performance

Active Publication Date: 2016-04-13
NINGBO HELONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the defects and deficiencies that existing biomass materials and plastics belong to flammable substances and low flame retardant grade, and provides a polyolefin wood-plastic co-extrusion profile with good flame retardancy and high fireproof grade and its preparation method

Method used

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  • A flame-retardant polyolefin wood-plastic co-extrusion profile and its preparation method
  • A flame-retardant polyolefin wood-plastic co-extrusion profile and its preparation method

Examples

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Effect test

Embodiment 1

[0023] A flame-retardant polyolefin wood-plastic co-extruded profile and a preparation method thereof, such as figure 1 As shown, including flame retardant layer 1 and core body 3, flame retardant layer 1 is made of the following raw materials by weight percentage: plastic 57, wood flour 15, polyolefin flame retardant 20, polyethylene coupling agent 2, stearic acid And compound lubricant 2.4, compound phosphite antioxidant 0.2, hindered amine light stabilizer and ultraviolet absorber 0.4, inorganic pigment 3.

[0024] The core body 3 is made of the following raw materials in percentage by weight: wood powder 62, high-density polyethylene particles 30, stearic acid and composite lubricant 3, polyethylene coupling agent 2, and inorganic pigment 3.

[0025] The core body 3 and the flame-retardant layer 1 are formed by co-extrusion process at one time, and the steps are as follows: A, raw material preparation; B, feeding and mixing materials; C, granulation; D, extrusion molding; ...

Embodiment 2

[0035] A flame-retardant polyolefin wood-plastic co-extrusion profile and its preparation method, the core body 3 and the flame-retardant layer 1 are formed by a co-extrusion process, and the steps are as follows: A, raw material preparation; B, feeding and mixing materials; C, granulation ; D, extrusion molding; E, cooling and setting; F, cutting.

[0036] A, raw material preparation: core body 3 is prepared by the following raw materials by weight percentage: 50 of wood powder, 37 of plastic, 5 of stearic acid and compound lubricant, 3 of polyethylene coupling agent, and 5 of inorganic pigment are weighed respectively Quantity, the plastic is high-density polyethylene particles; the flame retardant layer is prepared according to the following raw materials in weight percentage: plastic is 30, wood powder is 30, environmental protection polyolefin flame retardant is 30, polyethylene coupling agent is 3, stearic acid And the compound lubricant is 5, the antioxidant is 0.4, the...

Embodiment 3

[0045] A flame-retardant polyolefin wood-plastic co-extruded profile and a preparation method thereof, such as figure 1 As shown, the core body 3 and the flame retardant layer 1 are formed by co-extrusion process at one time, and the steps are as follows: A, raw material preparation; B, feeding and mixing materials; C, granulation; D, extrusion molding; E, cooling and setting; F , cutting.

[0046] A, raw material preparation: the core body 3 is prepared by the following raw materials by weight percentage: the wood powder is 70, the plastic is 27, stearic acid and compound lubricant are 1, polyethylene coupling agent is 1, and inorganic pigment is 1 respectively. Weighing, the plastic is high-density polyethylene particles; the flame-retardant layer is prepared by the following raw materials in weight percentage: the plastic is 80, the environmentally friendly polyolefin flame retardant is 12.7, the polyethylene coupling agent is 1, stearic acid and compound lubricant 1 for t...

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Abstract

The invention relates to the technical field of a composite material, and discloses a flame-retardant polyolefin wood plastic co-extrusion sectional material and a preparation method thereof. The flame-retardant polyolefin wood plastic co-extrusion sectional material comprises a flame-retardant layer (1) and a core body (3), and the flame retardant layer is prepared from the following raw materials in percentage by weight: 30%-80% of plastic, 0-30% of wood flour, 10%-30% of a flame retardant, 1%-3% of a coupling agent, 1%-5% of a lubricating agent, 0.1%-0.4% of an antioxidant, 0.2%-0.6% of an ultraviolet ray resistant agent and 1%-5% of toner, wherein the flame retardant is an environment-friendly polyolefin flame retardant. The surface of the polyolefin wood plastic composite material is subjected to flame retardant treatment to prepare the flame-retardant wood plastic coextrusion sectional material, so that the flame-retardant safety performance of the wood plastic composite material is improved, the application range of the wood plastic composite material is widened greatly, and the flame-retardant polyolefin wood plastic co-extrusion sectional material develops to a new level in the aspect of actual application of outdoor building materials.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a flame-retardant polyolefin co-extrusion profile and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of environmentally friendly composite material made of wood fiber or plant fiber in various forms as reinforcing material or filler, compounded with thermoplastic resin (PE, PP, PVC) or other materials. With the improvement of people's quality of life, people have a higher level of understanding and protection awareness of safety and environmental protection. With the continuous development of wood-plastic composite materials and their gradual application in various fields, higher requirements are put forward for their fire performance and applicability, which involves the flame retardant performance of wood-plastic composite materials. Wood-plastic composite materials have the advantages of both biomass mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/32B29C47/92B29B9/06B29C48/92
Inventor 张之敬马庆江宁娈张冰郭金梅
Owner NINGBO HELONG NEW MATERIAL
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