CN116041976A - Production process of high-temperature-resistant wood-plastic new material - Google Patents
Production process of high-temperature-resistant wood-plastic new material Download PDFInfo
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- CN116041976A CN116041976A CN202310021417.5A CN202310021417A CN116041976A CN 116041976 A CN116041976 A CN 116041976A CN 202310021417 A CN202310021417 A CN 202310021417A CN 116041976 A CN116041976 A CN 116041976A
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Polymers & Plastics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a production process of a new high-temperature-resistant wood-plastic material, which comprises the following steps of: 1) Washing wood fiber with water, stirring the washed wood fiber, and filtering out the wood fiber after stirring; 2) Mixing and stirring polyethylene and a lubricant, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing; 3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring; 4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation; 5) Conveying the obtained initial material to a conical double-screw extruder; 6) And (5) hot press molding. The production process of the novel high-temperature-resistant wood-plastic material slows down the photochemical reaction of the wood-plastic material under the combined action of various raw materials, thereby delaying the aging process of the wood-plastic material and prolonging the service life of the wood-plastic material.
Description
Technical Field
The invention relates to the technical field of wood-plastic material production, in particular to a production process of a novel high-temperature-resistant wood-plastic material.
Background
The new wood-plastic material is a new composite material which is a new type of material which is vigorously developed in recent years at home and abroad, and is a board or section material which is produced by using polyethylene, polypropylene, polyvinyl chloride and the like to replace common resin adhesive, mixing the new material with more than 35% -70% of waste plant fibers such as wood flour, rice hulls, straw and the like to form a new wood material, and then carrying out plastic processing processes such as extrusion, mould pressing, injection molding and the like.
The existing novel wood-plastic material can generate thermal expansion phenomenon when being subjected to high temperature, the wood-plastic material can absorb water and then generate cold shrinkage, so that the wood-plastic material can deform, and the wood-plastic material is easy to decompose under different illumination to cause the darkness of the wood-plastic material, so that the performance of the wood-plastic material is reduced and the service life of the wood-plastic material is reduced.
Disclosure of Invention
The invention aims to provide a production process of a novel high-temperature-resistant wood-plastic material, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 10-20 min, filtering out the stirred wood fiber, and drying the filtered wood fiber for later use;
2) Mixing and stirring the polyethylene and the lubricant for two hours, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 40-60 minutes under the condition of 160-190 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder for extrusion molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
As a further scheme of the invention: in the step 1), the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 80-90 ℃.
As still further aspects of the invention: in the step 2), the stirring temperature is controlled between 100 and 150 ℃.
As still further aspects of the invention: in the step 4), the granulating temperature is 160-190 ℃ and the rotating speed of a host machine is 150-300rpm.
As still further aspects of the invention: the processing temperature in the step 5) is 140-180 ℃, the screw rotating speed is 30-70rpm, and the feeder rotating speed is 20-60rpm.
The additive in the step 3) comprises the following raw materials in parts by weight: 2, 4-trimethyl-1 3-5 parts, polyphenylene sulfide 10-15 parts, tert-butyl hydroquinone 2-5 parts and hindered amine light of amide groups 1-3 parts.
As still further aspects of the invention: the additive in the step 3) comprises the following raw materials in parts by weight: 2, 4-trimethyl-1 4 parts, 12 parts of polyphenylene sulfide, 4 parts of tert-butylhydroquinone and 2 parts of hindered amine light with amide groups.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the production process of the novel high-temperature-resistant wood-plastic material, under the combined action of various raw materials, the ultraviolet rays in the light rays can be shielded by adding the hindered amine light with amide groups, so that the photochemical reaction of the wood-plastic material is slowed down, the aging process of the wood-plastic material is delayed, and the service life of the wood-plastic material is prolonged;
2. the high temperature resistance of the novel wood-plastic material can be improved by adding the polyphenylene sulfide, and the novel wood-plastic material has good performances of inorganic acid resistance, alkali resistance, aliphatic hydrocarbon resistance, aromatic hydrocarbon resistance, ketone resistance, alcohol resistance and the like, and also has good weather resistance and radiation resistance, and is stable to ultraviolet rays, cobalt 60 rays and gamma rays;
3. the size stability is good, the catalyst is extremely suitable for working under high-temperature and high-humidity environment, and the 2, 4-trimethyl-1 can have a protective effect on oxidation caused by heat and oxygen.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 10 minutes, filtering out the stirred wood fiber, and drying the filtered wood fiber for later use, wherein the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 80 ℃;
2) Mixing and stirring polyethylene and a lubricant for two hours, controlling the stirring temperature to be 100 ℃, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 40 minutes under the condition of 160 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation, wherein the granulation temperature is 160 ℃, and the rotation speed of a main machine is 150rpm, so as to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder, wherein the processing temperature is 140 ℃, the screw rotating speed is 30rpm, the feeding machine rotating speed is 20rpm, and extruding and molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
In this embodiment, the additive includes the following raw materials in parts by weight: 2, 4-trimethyl-1 3 parts, polyphenylene sulfide 10 parts, tert-butylhydroquinone 2 parts and amide-group hindered amine light 1 part.
Example 2
The production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 10 minutes, filtering out the stirred wood fiber, and drying the filtered wood fiber for later use, wherein the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 80 ℃;
2) Mixing and stirring polyethylene and a lubricant for two hours, controlling the stirring temperature to be 100 ℃, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 40 minutes under the condition of 160 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation, wherein the granulation temperature is 190 ℃, and the rotation speed of a main machine is 300rpm, so as to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder, wherein the processing temperature is 180 ℃, the screw rotating speed is 70rpm, the feeding machine rotating speed is 60rpm, and extruding and molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
In this embodiment, the additive includes the following raw materials in parts by weight: 2, 4-trimethyl-1 4 parts, 12 parts of polyphenylene sulfide, 4 parts of tert-butylhydroquinone and 2 parts of hindered amine light with amide groups.
Example 3
The production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 15 minutes, filtering the stirred wood fiber, and drying the filtered wood fiber for later use, wherein the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 85 ℃;
2) Mixing and stirring polyethylene and a lubricant for two hours, controlling the stirring temperature to be 120 ℃, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 50 minutes under the condition of 180 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation, wherein the granulation temperature is 170 ℃, and the rotation speed of a main machine is 220rpm, so as to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder, wherein the processing temperature is 160 ℃, the screw rotating speed is 50rpm, the feeding machine rotating speed is 40rpm, and extruding and molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
In this embodiment, the additive includes the following raw materials in parts by weight: 2, 4-trimethyl-1 4 parts, 12 parts of polyphenylene sulfide, 4 parts of tert-butylhydroquinone and 2 parts of hindered amine light with amide groups.
Example 4
The production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 20 minutes, filtering the stirred wood fiber, and drying the filtered wood fiber for later use, wherein the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 90 ℃;
2) Mixing and stirring the polyethylene and the lubricant for two hours, controlling the stirring temperature to be 150 ℃, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 60 minutes under the condition of 190 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation, wherein the granulation temperature is 160 ℃, and the rotation speed of a main machine is 150rpm, so as to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder, wherein the processing temperature is 140 ℃, the screw rotating speed is 30rpm, the feeding machine rotating speed is 20rpm, and extruding and molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
In this embodiment, the additive includes the following raw materials in parts by weight: 2, 4-trimethyl-1 4 parts, 12 parts of polyphenylene sulfide, 4 parts of tert-butylhydroquinone and 2 parts of hindered amine light with amide groups.
Example 5
The production process of the novel high-temperature-resistant wood-plastic material comprises the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 20 minutes, filtering the stirred wood fiber, and drying the filtered wood fiber for later use, wherein the drying equipment is an infrared heat radiation drying kiln, and the temperature is kept at 90 ℃;
2) Mixing and stirring the polyethylene and the lubricant for two hours, controlling the stirring temperature to be 150 ℃, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding other additives into the polymer mixture mixed with the lubricant in the step 2), and stirring for 60 minutes under the condition of 190 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation, wherein the granulation temperature is 190 ℃, and the rotation speed of a main machine is 300rpm, so as to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder, wherein the processing temperature is 180 ℃, the screw rotating speed is 70rpm, the feeding machine rotating speed is 60rpm, and extruding and molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
In this embodiment, the additive includes the following raw materials in parts by weight: 2, 4-trimethyl-1 5 parts, polyphenylene sulfide 15 parts, tert-butylhydroquinone 5 parts and amide-group hindered amine light 3 parts.
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 characteristics 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The production process of the novel high-temperature-resistant wood-plastic material is characterized by comprising the following steps of:
1) Washing wood fiber with water, stirring the washed wood fiber for 10-20 min, filtering out the stirred wood fiber, and drying the filtered wood fiber for later use;
2) Mixing and stirring the polyethylene and the lubricant for two hours, and adding the wood fiber obtained in the step 1) into the polyethylene and the lubricant for uniform mixing;
3) Adding an additive into the polymer mixture mixed with the lubricant in the step 2), and stirring for 40-60 minutes under the condition of 160-190 ℃ in a closed environment;
4) Transporting the wood plastic material slurry mixture in the step 3) to a parallel double-screw extruder for re-granulation to obtain a primary material;
5) Conveying the obtained initial material to a conical double-screw extruder for extrusion molding;
6) And 5) putting the granules subjected to extrusion granulation in a hot-press die for hot-press molding.
2. The process for producing a novel high-temperature-resistant wood-plastic material according to claim 1, wherein the drying equipment in the step 1) is an infrared heat radiation drying kiln, and the temperature is kept at 80-90 ℃.
3. The process for producing a novel high-temperature-resistant wood-plastic material according to claim 1, wherein the stirring temperature in the step 2) is controlled to be 100-150 ℃.
4. The process for producing a novel high-temperature-resistant wood-plastic material according to claim 1, wherein the granulating temperature in the step 4) is 160-190 ℃ and the host rotation speed is 150-300rpm.
5. The process for producing a novel high-temperature-resistant wood-plastic material according to claim 1, wherein the processing temperature in the step 5) is 140-180 ℃, the screw rotation speed is 30-70rpm, and the feeder rotation speed is 20-60rpm.
6. A process for producing a new high temperature resistant wood plastic material according to any one of claims 1 to 5, wherein the additive in step 3) comprises the following raw materials in parts by weight: 2, 4-trimethyl-1 3-5 parts, polyphenylene sulfide 10-15 parts, tert-butyl hydroquinone 2-5 parts and hindered amine light of amide groups 1-3 parts.
7. The process for producing a novel high-temperature-resistant wood-plastic material according to claim 6, wherein the additive in the step 3) comprises the following raw materials in parts by weight: 2, 4-trimethyl-1 4 parts, 12 parts of polyphenylene sulfide, 4 parts of tert-butylhydroquinone and 2 parts of hindered amine light with amide groups.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310021417.5A CN116041976A (en) | 2023-01-07 | 2023-01-07 | Production process of high-temperature-resistant wood-plastic new material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310021417.5A CN116041976A (en) | 2023-01-07 | 2023-01-07 | Production process of high-temperature-resistant wood-plastic new material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360776A (en) * | 2013-07-30 | 2013-10-23 | 湖州格林特木塑材料有限公司 | Production technology of high-strength wood plastic composite material |
| CN106009407A (en) * | 2016-07-07 | 2016-10-12 | 安徽国风木塑科技有限公司 | Imitation wood-grain co-extrusion wood-plastic material and processing method thereof |
| CN108789762A (en) * | 2018-04-08 | 2018-11-13 | 南通慧源塑胶有限公司 | A kind of antibacterial environment protection wood moulding answers the manufacture craft of material |
| CN110467771A (en) * | 2019-07-24 | 2019-11-19 | 宣城福美达新材料有限公司 | A kind of preparation method of high temperature resistant Wood-plastic material |
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2023
- 2023-01-07 CN CN202310021417.5A patent/CN116041976A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360776A (en) * | 2013-07-30 | 2013-10-23 | 湖州格林特木塑材料有限公司 | Production technology of high-strength wood plastic composite material |
| CN106009407A (en) * | 2016-07-07 | 2016-10-12 | 安徽国风木塑科技有限公司 | Imitation wood-grain co-extrusion wood-plastic material and processing method thereof |
| CN108789762A (en) * | 2018-04-08 | 2018-11-13 | 南通慧源塑胶有限公司 | A kind of antibacterial environment protection wood moulding answers the manufacture craft of material |
| CN110467771A (en) * | 2019-07-24 | 2019-11-19 | 宣城福美达新材料有限公司 | A kind of preparation method of high temperature resistant Wood-plastic material |
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