CN111718548A - Novel wood-plastic composite material - Google Patents
Novel wood-plastic composite material Download PDFInfo
- Publication number
- CN111718548A CN111718548A CN202010797849.1A CN202010797849A CN111718548A CN 111718548 A CN111718548 A CN 111718548A CN 202010797849 A CN202010797849 A CN 202010797849A CN 111718548 A CN111718548 A CN 111718548A
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- plastic composite
- composite material
- wood
- powder
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a novel wood-plastic composite material which comprises the following components in parts by weight: 40-60 parts of PVC powder, 40-60 parts of heavy calcium powder, 10-20 parts of talcum powder, 12-20 parts of wood powder, 1.5-3.5 parts of stabilizer, 3-6 parts of modifier, 0.5-2 parts of acrylate, 0.1-1 part of internal lubricant and 0.2-0.7 part of external lubricant. The novel wood-plastic composite material disclosed by the invention has excellent performances in static bending strength, impact resistance and the like.
Description
Technical Field
The invention relates to a wood-plastic composite material, in particular to a novel wood-plastic composite material.
Background
The wood-plastic composite material is a novel environment-friendly composite material and has attracted wide attention at home and abroad in recent years. In general, the plate or the section is produced by mixing thermoplastic plastics such as polyethylene, polypropylene and polyvinyl chloride with plant fibers such as wood flour, rice hulls and straws and then carrying out plastic processing technologies such as extrusion, injection molding and mould pressing. The wood-plastic composite material has the advantages of both wood and plastic. The wood-plastic composite material has the appearance similar to natural wood, overcomes the defects, has the advantages of corrosion resistance, moisture resistance, moth prevention, high dimensional stability and the like, has higher hardness than pure plastic, has the processability similar to wood, can be cut and bonded, is fixedly connected by nails or bolts, and can be painted. Therefore, the method has wide application field and can be widely applied to industries such as building materials, furniture, logistics packaging, gardens and the like.
The existing wood-plastic composite material does not achieve very excellent effects in the aspects of bending strength, connection rigidity and the like.
Disclosure of Invention
The invention aims to provide a novel wood-plastic composite material to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel wood-plastic composite material comprises the following components in parts by weight: 40-60 parts of PVC powder, 40-60 parts of heavy calcium powder, 10-20 parts of talcum powder, 12-20 parts of wood powder, 1.5-3.5 parts of stabilizer, 3-6 parts of modifier, 0.5-2 parts of acrylate, 0.1-1 part of internal lubricant and 0.2-0.7 part of external lubricant.
As a further scheme of the invention: the PVC powder is 5-type PVC powder.
As a further scheme of the invention: the fineness of the talcum powder is 500 meshes.
As a further scheme of the invention: the wood powder is obtained by mixing one or more of wood chips, bamboo chips and straws and then crushing and pulverizing.
As a further scheme of the invention: the stabilizer is a lead salt stabilizer.
As a further scheme of the invention: the modifier is maleic anhydride grafted polypropylene or maleic anhydride grafted polyethylene.
As a further scheme of the invention: the inner lubricant is polyethylene wax, and the outer lubricant is stearic acid.
As a further scheme of the invention: the preparation method of the novel wood-plastic composite material comprises the steps of putting the weighed components into a high-speed hot mixer, heating and mixing at the temperature of 115-125 ℃, then sending into a high-speed cold mixer for cold mixing at the temperature of 40-50 ℃, discharging and naturally cooling, putting into a conical double-screw extruder for extrusion and plasticization, cooling and shaping after die forming, cutting and packaging.
Compared with the prior art, the invention has the beneficial effects that: the novel wood-plastic composite material disclosed by the invention has excellent performances in static bending strength, impact resistance and the like.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment of the invention, the novel wood-plastic composite material comprises the following components in parts by weight: 45 parts of 5-type PVC powder, 45 parts of coarse whiting powder, 15.5 parts of talcum powder, 18 parts of wood powder, 3 parts of stabilizer, 5 parts of modifier, 2 parts of acrylate, 0.5 part of internal lubricant and 0.4 part of external lubricant, wherein the fineness of the talcum powder is 500 meshes, and the wood powder is obtained by mixing one or more of sawdust, bamboo sawdust and straw and then crushing the mixture into powder; the stabilizer is a lead salt stabilizer, the modifier is maleic anhydride grafted polypropylene or maleic anhydride grafted polyethylene, the internal lubricant is polyethylene wax, and the external lubricant is stearic acid.
In the second embodiment of the invention, the novel wood-plastic composite material comprises the following components in parts by weight: 50 parts of 5-type PVC powder, 50 parts of heavy calcium carbonate powder, 12.5 parts of talcum powder, 12.5 parts of wood powder, 2.5 parts of stabilizer, 5 parts of modifier, 1 part of acrylate, 0.5 part of internal lubricant and 0.4 part of external lubricant, wherein the fineness of the talcum powder is 500 meshes, and the wood powder is obtained by mixing one or more of wood chips, bamboo chips and straws and then crushing the mixture into powder; the stabilizer is a lead salt stabilizer, the modifier is maleic anhydride grafted polypropylene or maleic anhydride grafted polyethylene, the internal lubricant is polyethylene wax, and the external lubricant is stearic acid.
The components of the first embodiment and the second embodiment are respectively put into a high-speed hot mixer, the mixture is heated and mixed at the temperature of 115-125 ℃, then the mixture is sent into a high-speed cold mixer for cold mixing at the temperature of 40-50 ℃, the mixture is discharged and naturally cooled, the mixture is put into a conical double-screw extruder for extrusion and plasticization, the mold is formed and cooled for shaping, and the cutting and packaging are carried out, the static bending strength, the section holding screw force, the maximum breaking force of a connecting angle, the low-temperature drop hammer impact and the thermal resistance in the cross section thickness direction of the test sample are detected according to CB/T8814-2004-unplasticized polyvinyl chloride (PVC-U) section for doors and windows and GB/T17657-2013-artificial board physicochemical property test method for artificial boards and veneer, so as to obtain the detection results shown in the following table 1:
in the context of Table 1, the following examples are,
it can be seen that the above samples all have excellent properties in structural strength, impact resistance, heat insulation and fire resistance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The novel wood-plastic composite material is characterized in that: the paint comprises the following components in parts by weight: 40-60 parts of PVC powder, 40-60 parts of heavy calcium powder, 10-20 parts of talcum powder, 12-20 parts of wood powder, 1.5-3.5 parts of stabilizer, 3-6 parts of modifier, 0.5-2 parts of acrylate, 0.1-1 part of internal lubricant and 0.2-0.7 part of external lubricant.
2. The novel wood-plastic composite material according to claim 1, characterized in that: the PVC powder is 5-type PVC powder.
3. The novel wood-plastic composite material according to claim 1, characterized in that: the fineness of the talcum powder is 500 meshes.
4. The novel wood-plastic composite material according to claim 1, characterized in that: the wood powder is obtained by mixing one or more of wood chips, bamboo chips and straws and then crushing and pulverizing.
5. The novel wood-plastic composite material according to claim 1, characterized in that: the stabilizer is a lead salt stabilizer.
6. The novel wood-plastic composite material according to claim 1, characterized in that: the modifier is maleic anhydride grafted polypropylene or maleic anhydride grafted polyethylene.
7. The novel wood-plastic composite material according to claim 1, characterized in that: the inner lubricant is polyethylene wax, and the outer lubricant is stearic acid.
8. A novel wood-plastic composite according to any one of claims 1 to 7, characterized in that: the preparation method of the novel wood-plastic composite material comprises the following steps: the components which are weighed and measured are put into a high-speed hot mixer, heated and mixed at the temperature of 115-125 ℃, then sent into a high-speed cold mixer to be cold mixed at the temperature of 40-50 ℃, discharged and naturally cooled, put into a conical double-screw extruder to be extruded and plasticized, and then are cooled and shaped after being molded by a die, cut and packaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797849.1A CN111718548A (en) | 2020-08-10 | 2020-08-10 | Novel wood-plastic composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797849.1A CN111718548A (en) | 2020-08-10 | 2020-08-10 | Novel wood-plastic composite material |
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| Publication Number | Publication Date |
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| CN111718548A true CN111718548A (en) | 2020-09-29 |
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| CN202010797849.1A Pending CN111718548A (en) | 2020-08-10 | 2020-08-10 | Novel wood-plastic composite material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122112A (en) * | 2013-03-01 | 2013-05-29 | 山西峰岩新型建材股份有限公司 | PVC (polyvinyl chloride)-based wood plastic and preparation method thereof |
| US20150267025A1 (en) * | 2014-03-21 | 2015-09-24 | Zhejiang Tianzhen Bamboo & Wood Development Co., Ltd. | Pvc composite material, foam board, production method and apparatus thereof, and flooring |
| CN108485102A (en) * | 2018-02-13 | 2018-09-04 | 南京工业大学 | Lignin-enhanced polyvinyl chloride wood-plastic foamed composite material and preparation method thereof |
-
2020
- 2020-08-10 CN CN202010797849.1A patent/CN111718548A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122112A (en) * | 2013-03-01 | 2013-05-29 | 山西峰岩新型建材股份有限公司 | PVC (polyvinyl chloride)-based wood plastic and preparation method thereof |
| US20150267025A1 (en) * | 2014-03-21 | 2015-09-24 | Zhejiang Tianzhen Bamboo & Wood Development Co., Ltd. | Pvc composite material, foam board, production method and apparatus thereof, and flooring |
| CN108485102A (en) * | 2018-02-13 | 2018-09-04 | 南京工业大学 | Lignin-enhanced polyvinyl chloride wood-plastic foamed composite material and preparation method thereof |
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Application publication date: 20200929 |