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Coextruded composite material applied to PE (polyethylene) wood-plastic material and relevant material and preparation method thereof

A composite material and wood-plastic technology, applied in the field of composite materials, can solve the problems of poor compatibility, inability to inspect the intermediate layer coating, weak adhesion of the substrate, etc. UV effect, effect of reducing dosage

Inactive Publication Date: 2012-08-22
上海红京印实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PE has great limitations as the plastic carrier of wood-plastic: poor weather resistance, not suitable for outdoor use, large deformation rate, and poor strength. Usually, it is compensated by co-extruding a layer of high-performance materials on the surface.
In addition, due to the poor compatibility between PE and traditional weather-resistant engineering plastics, the adhesion between the co-extrusion layer and the base material is weak. Foreign countries adopt a three-layer co-extrusion method to introduce an intermediate transition between the PE base material and the weather-resistant engineering plastic film. Layer to solve, this method has a low yield rate, strict requirements on equipment and technology, and cannot visually inspect the defects of the intermediate layer coating

Method used

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  • Coextruded composite material applied to PE (polyethylene) wood-plastic material and relevant material and preparation method thereof
  • Coextruded composite material applied to PE (polyethylene) wood-plastic material and relevant material and preparation method thereof
  • Coextruded composite material applied to PE (polyethylene) wood-plastic material and relevant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A co-extrusion composite material applied to PE wood-plastic and related materials, the composite material includes the following components:

[0036] Compatibilizers, lubricants, wear agents and functional additives;

[0037]Wherein parts by weight are respectively, 60 parts of compatibilizers, 0.8 parts of lubricants, 30 parts of anti-wear agents, 8 parts of functional additives; Compatibilizers are ethylene-acrylic acid copolymer (EAA), styrene-maleic anhydride A mixture of copolymer (SMA), acrylonitrile-styrene-acrylate copolymer (ASA) and acrylonitrile-styrene copolymer (SAN), their weight ratio is 10-30:10-40:30-70 : 10-30; the lubricant is a mixture of oxidized polyethylene wax, pentaerythritol ester and ethylene bis stearamide, and their weight ratio is 0.3-1.5: 0.3-1.5: 0.2-1.0; the wear agent is polysiloxane A mixture of alkane and polytetrafluoroethylene; wherein the weight ratio of polysiloxane and polytetrafluoroethylene in the mixture is 5-10:5-20; the fu...

Embodiment 2

[0040] A co-extruded composite material applied to PE wood-plastic and related materials, the composite material includes the following components by weight:

[0041] 170 parts of compatibilizer, 4.0 parts of lubricant, 10 parts of anti-wear agent, 2 parts of functional additive;

[0042] The compatibilizer is acrylonitrile-styrene-acrylate copolymer (ASA), vinyl acrylic acid (EAA) and styrene-maleic anhydride copolymer (SMA) (the mass ratio of the three is 80:70:20) The lubricant is pentaerythritol ester; the anti-wear agent is polysiloxane; the functional auxiliary agent is an antioxidant and an ultraviolet absorber with a weight ratio of 1-4:1-4, and the antioxidant is a weight ratio of 0.5-2:0.5 -Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester and tris[2,4-di-tert-butylphenyl]phosphite, UV absorber Bis(2,2,6,6-tetramethyl-4-hydroxypiperidine) sebacate and 2-(2'-hydroxyl-5'-methylbenzene in a weight ratio of 0.5-2:0.5-2 base) benzotriazo...

Embodiment 3

[0044] A co-extruded composite material applied to PE wood-plastic and related materials, the composite material includes the following components by weight:

[0045] 100 parts of compatibilizer, 2 parts of lubricant, 20 parts of anti-wear agent, 6 parts of functional additives; compatibilizer is ethylene-acrylic acid copolymer (EAA) and acrylonitrile-styrene-acrylate copolymer (ASA) Mixture (the mass ratio of EAA to ASA is 40:60); the lubricant is a mixture of oxidized polyethylene wax and pentaerythritol ester; the anti-wear agent is polysiloxane and polytetrafluoroethylene in a weight ratio of 5-10:5-20 The mixture; the functional auxiliary agent is an antioxidant and an ultraviolet light absorber in a weight ratio of 1-4:1-4, and the antioxidant is tetrakis[β-(3,5-di tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester and tris[2,4-di-tert-butylphenyl]phosphite, the ultraviolet light absorber is decanedi in a weight ratio of 0.5-2:0.5-2 bis(2,2,6,6-tetramethyl-...

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Abstract

The invention provides a coextruded composite material applied to a PE (polyethylene) wood-plastic material and a relevant material and a preparation method thereof. The composite material comprises the following components: a compatilizer, a lubricant, an antiwear additive and a functional adjuvant. The modified coextruded material adopting a formula provided by the invention is applied to the coextrusion industry of the PE wood-plastic material and the relevant material; the ageing resistance and the wear resistance performance of the PE wood-plastic material and the relevant material are improved greatly; the wear resistance performance and the color diversity performance of the PE wood-plastic material and the relevant material have more schemes; a product prepared through the method provided by the invention is improved in weather resistance; the phenomena that a surface pulverizes, cracks, seriously fades and the like cannot occur; the wear resistance is improved; the dosage of a coloring agent is reduced; and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a co-extrusion composite material applied to PE wood-plastic and related materials and a preparation method thereof. Background technique [0002] PE and related materials refer to the general term for PE materials as the main body, blended with wood fibers, inorganic fillers and other engineering plastics. PE blended wood fiber (also known as PE wood-plastic composite material, referred to as PE wood-plastic). PE wood-plastic composite material is a modified thermoplastic filled and reinforced with wood fiber, which has both the cost and performance advantages of wood and plastic, and can be formed into profiles, plates or other products by extrusion and compression. Wood-plastic products are mainly used to replace wood, and have the characteristics of waterproof, moth-proof, and environmental friendliness. The research on wood-plastic compounds has a history of mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L23/08C08L33/02C08L51/00C08L25/08C08L25/12C08L83/04C08L27/18B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 黄海峰李新华
Owner 上海红京印实业有限公司
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