CN110903527A - Polyolefin wood-plastic co-extrusion surface layer composite material - Google Patents
Polyolefin wood-plastic co-extrusion surface layer composite material Download PDFInfo
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- CN110903527A CN110903527A CN201911202486.6A CN201911202486A CN110903527A CN 110903527 A CN110903527 A CN 110903527A CN 201911202486 A CN201911202486 A CN 201911202486A CN 110903527 A CN110903527 A CN 110903527A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a polyolefin wood-plastic co-extrusion surface layer composite material which is composed of the following raw materials: high density polyethylene: 40-50 parts of polypropylene: 10-30 parts of wood powder: 10-25 parts of a compatilizer: 2-10 parts of ultraviolet absorbent UV-328: 0.2-0.5 part, antioxidant: 0.4 to 0.8 portion. According to the invention, the bonding strength of the wood-plastic composite co-extrusion surface layer composite material and the core layer material is improved by introducing the ester and maleic anhydride grafting compatilizer, and meanwhile, the natural texture of the surface layer of the co-extrusion floor is improved by adding part of wood powder, so that the processing adaptability of the co-extrusion wood-plastic floor is improved.
Description
Technical Field
The invention relates to the technical field of wood-plastic profiles, in particular to a polyolefin wood-plastic co-extrusion surface layer composite material.
Background
The wood-plastic section bar is an environment-friendly extrusion section bar product produced by mixing, granulating and extruding and shaping regenerated polyolefin and plant fiber serving as main raw materials, and can be widely applied to building outdoor floors, wallboards, guardrails and pavilions. The traditional wood-plastic composite material for the wood-plastic section mainly comprises regenerated polyethylene, wood powder, calcium powder, toner, a compatilizer, a lubricant, an antioxidant, an antibacterial agent, an ultraviolet resistant agent and the like, and a through structure is formed in the section of the section. This structure requires consistency of material properties and component ratios to ensure product quality, which results in excessive product cost and less than ideal properties.
The existing wood-plastic section product with a co-extrusion structure is coated with a layer of high-performance engineering plastic on the surface of a traditional wood-plastic template through a co-extrusion technology, and is used for displaying the color and texture of the product and improving the oxidation resistance, ultraviolet resistance and wear resistance of the product. The wood-plastic composite material of the core layer is not dyed by adding toner, and the antioxidant and uvioresistant auxiliary agents can be properly reduced or not used, so that the cost is saved on one hand, and the performance of the product is improved on the other hand. The bonding strength between the co-extruded fabric and the core layer material can influence physical and mechanical indexes such as bending strength of the plate on one hand, and can directly influence the cladding of the fabric on the core material on the other hand, influence the water absorption of the material in a boiling water boiling test, and seriously cause the swelling of the co-extruded layer material. On the other hand, wood powder is not added in the surface layer co-extrusion composite material of the traditional polyolefin wood-plastic composite material, natural texture is lacked, and the post-processing process is influenced because pure plastic is easily melted.
Disclosure of Invention
The invention aims to provide a polyolefin wood-plastic co-extrusion surface layer composite material aiming at the defects in the prior art, and the bonding strength of the co-extrusion fabric is improved.
The purpose of the invention is realized by the following technical scheme:
a polyolefin wood-plastic co-extrusion surface layer composite material is composed of the following raw materials: high density polyethylene: 40-50 parts of polypropylene: 10-30 parts of wood powder: 10-25 parts of a compatilizer: 2-10 parts of ultraviolet absorbent UV-328: 0.2-0.5 part, antioxidant: 0.4 to 0.8 portion.
Further, the compatilizer is at least one of EVA, EBA or maleic anhydride grafted polyethylene.
Further, the EVA accounts for 2-8 parts.
Further, the EBA accounts for 1-4 parts.
Further, 1-5 parts of maleic anhydride grafted polyethylene.
Further, the EBA has an ester content of greater than 30%.
Further, the antioxidant is at least one of 168 or 1076.
Further, 0.2-0.5 part of antioxidant 168.
Further, 0.2-0.5 part of antioxidant 1076.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the bonding strength of the wood-plastic composite co-extrusion surface layer composite material and the core layer material is improved by introducing the ester and maleic anhydride grafting compatilizer, and meanwhile, the natural texture of the surface layer of the co-extrusion floor is improved by adding part of wood powder, so that the processing adaptability of the co-extrusion wood-plastic floor is improved.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following specific examples.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1
The embodiment provides a polyolefin wood-plastic co-extrusion surface layer composite material, which is prepared from the following raw materials in parts by weight: 40 parts, polypropylene: 15 parts of wood powder: 12 parts of EVA: 2.5 parts, EBA: 1.8 parts, maleic anhydride grafted polyethylene: 5 parts, ultraviolet-resistant UV-328: 0.3 part, antioxidant 168: 0.2 part, antioxidant 1076: 0.2 part.
The polyolefin wood-plastic co-extrusion surface layer composite material prepared in the embodiment is subjected to a boiling experiment size expansion test and a tensile strength test, and is prepared according to EN 15534-1: 2014 and EN 319: 1993 standard, wherein the thickness direction expansion of the polyethylene wood-plastic co-extruded section bar is 1.62%, the length direction expansion is 0.13%, and the water absorption rate is as follows: 1.2 percent and the tensile strength of the surface material is 2.69 MPa.
Example 2
The embodiment provides a polyolefin wood-plastic co-extrusion surface layer composite material, which is prepared from the following raw materials in parts by weight: 45 parts, polypropylene: 30 parts of wood powder: 15 parts, EVA: 3 parts, EBA: 1.8 parts, maleic anhydride grafted polyethylene: 2 parts, ultraviolet-resistant UV-328: 0.5 part, antioxidant 168: 0.4 part, antioxidant 1076: 0.4 part.
The polyolefin wood-plastic co-extrusion surface layer composite material prepared in the embodiment is subjected to a boiling experiment size expansion test and a tensile strength test, and is prepared according to EN 15534-1: 2014 and EN 319: 1993 standard, wherein the thickness direction expansion of the polyethylene wood-plastic co-extruded section bar is 1.67%, the length direction expansion is 0.14%, and the water absorption rate is as follows: 1.2 percent and the tensile strength of the surface material is 2.92 MPa.
Example 3
The embodiment provides a polyolefin wood-plastic co-extrusion surface layer composite material, which is prepared from the following raw materials in parts by weight: 50 parts, polypropylene: 10 parts of wood powder: 25 parts of EVA: 8 parts, EBA: 1 part of maleic anhydride grafted polyethylene: 1 part, ultraviolet-resistant UV-328:0.2 part, antioxidant 168: 0.5 part, antioxidant 1076: 0.2 part.
The polyolefin wood-plastic co-extrusion surface layer composite material prepared in the embodiment is subjected to a boiling experiment size expansion test and a tensile strength test, and is prepared according to EN 15534-1: 2014 and EN 319: 1993 standard, wherein the thickness direction expansion of the polyethylene wood-plastic co-extruded section bar is 1.64%, the length direction expansion is 0.12%, and the water absorption rate is as follows: 1.2 percent and the tensile strength of the surface material is 2.86 MPa.
Example 4
The embodiment provides a polyolefin wood-plastic co-extrusion surface layer composite material, which is prepared from the following raw materials in parts by weight: 48 parts, polypropylene: 20 parts of wood powder: 20 parts, EVA: 6 parts, EBA: 2 parts of maleic anhydride grafted polyethylene: 2 parts, ultraviolet-resistant UV-328:0.2 part, antioxidant 168: 0.2 part, antioxidant 1076: 0.3 part.
The polyolefin wood-plastic co-extrusion surface layer composite material prepared in the embodiment is subjected to a boiling experiment size expansion test and a tensile strength test, and is prepared according to EN 15534-1: 2014 and EN 319: 1993 standard, wherein the thickness direction expansion of the polyethylene wood-plastic co-extruded section bar is 1.68%, the length direction expansion is 0.11%, and the water absorption rate is as follows: 1.5 percent and the tensile strength of the surface material is 2.75 MPa.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The polyolefin wood-plastic co-extrusion surface layer composite material is characterized by comprising the following raw materials: high density polyethylene: 40-50 parts of polypropylene: 10-30 parts of wood powder: 10-25 parts of a compatilizer: 2-10 parts of ultraviolet absorbent UV-328: 0.2-0.5 part, antioxidant: 0.4 to 0.8 portion.
2. The polyolefin wood-plastic co-extruded facing composite of claim 1, wherein the compatibilizer is at least one of EVA, EBA, or maleic anhydride grafted polyethylene.
3. The polyolefin wood-plastic co-extruded surface layer composite material as claimed in claim 2, wherein the EVA is 2-8 parts.
4. The polyolefin wood-plastic co-extruded surface layer composite material as claimed in claim 2, wherein the EBA accounts for 1-4 parts.
5. The polyolefin wood-plastic co-extrusion surface layer composite material as claimed in claim 2, wherein the maleic anhydride grafted polyethylene is 1-5 parts.
6. The polyolefin wood-plastic co-extruded facing composite of claim 4, wherein the EBA has an ester content of greater than 30%.
7. The polyolefin wood-plastic co-extruded facing composite of claim 1, wherein the antioxidant is at least one of 168 or 1076.
8. The polyolefin wood-plastic co-extrusion surface layer composite material as claimed in claim 7, wherein the antioxidant 168 is 0.2-0.5 part.
9. The polyolefin wood-plastic co-extrusion surface layer composite material as claimed in claim 7, wherein the antioxidant 1076 is 0.2-0.5 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202486.6A CN110903527A (en) | 2019-11-29 | 2019-11-29 | Polyolefin wood-plastic co-extrusion surface layer composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202486.6A CN110903527A (en) | 2019-11-29 | 2019-11-29 | Polyolefin wood-plastic co-extrusion surface layer composite material |
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| CN110903527A true CN110903527A (en) | 2020-03-24 |
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| CN201911202486.6A Pending CN110903527A (en) | 2019-11-29 | 2019-11-29 | Polyolefin wood-plastic co-extrusion surface layer composite material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516323A (en) * | 2020-05-08 | 2020-08-11 | 东莞铭丰生物质科技有限公司 | Polymer co-extrusion wood-plastic floor and preparation method thereof |
| WO2021190089A1 (en) * | 2020-03-27 | 2021-09-30 | 华南理工大学 | Wood-plastic composite material having high toughness and high strength and preparation method therefor |
| CN115782330A (en) * | 2022-10-25 | 2023-03-14 | 安徽森泰木塑集团股份有限公司 | Wood-plastic co-extrusion floor and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178129A (en) * | 2015-07-23 | 2015-12-23 | 宁波禾隆新材料有限公司 | Low-heat-absorbing type sectional material made of wood-plastic material and preparation method thereof |
| CN109897263A (en) * | 2019-03-12 | 2019-06-18 | 合肥原然新材料有限公司 | A kind of long-term weatherability wood-plastic co-extrusion panel material |
-
2019
- 2019-11-29 CN CN201911202486.6A patent/CN110903527A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178129A (en) * | 2015-07-23 | 2015-12-23 | 宁波禾隆新材料有限公司 | Low-heat-absorbing type sectional material made of wood-plastic material and preparation method thereof |
| CN109897263A (en) * | 2019-03-12 | 2019-06-18 | 合肥原然新材料有限公司 | A kind of long-term weatherability wood-plastic co-extrusion panel material |
Non-Patent Citations (1)
| Title |
|---|
| XIAOLONG HAO ET AL.: "Mechanical properties, creep resistance, and dimensional stability of core/shell structured wood flour/polyethylene composites with highly filled core layer", 《CONSTRUCTION AND BUILDING MATERIALS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190089A1 (en) * | 2020-03-27 | 2021-09-30 | 华南理工大学 | Wood-plastic composite material having high toughness and high strength and preparation method therefor |
| CN111516323A (en) * | 2020-05-08 | 2020-08-11 | 东莞铭丰生物质科技有限公司 | Polymer co-extrusion wood-plastic floor and preparation method thereof |
| CN115782330A (en) * | 2022-10-25 | 2023-03-14 | 安徽森泰木塑集团股份有限公司 | Wood-plastic co-extrusion floor and preparation method thereof |
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Application publication date: 20200324 |