CN111534123A - Preparation process for resin-plastic-wood composite material - Google Patents
Preparation process for resin-plastic-wood composite material Download PDFInfo
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- CN111534123A CN111534123A CN202010480379.6A CN202010480379A CN111534123A CN 111534123 A CN111534123 A CN 111534123A CN 202010480379 A CN202010480379 A CN 202010480379A CN 111534123 A CN111534123 A CN 111534123A
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a preparation process for a resin-plastic-wood composite material, which comprises the following steps: s1, preparing raw materials: weighing a certain amount of wood powder, resin powder, PE plastic and an auxiliary agent as raw materials according to a proper weight ratio, and sequentially adding the wood powder, the auxiliary agent, the PE plastic and the resin powder into a stirring kettle in a vacuum feeding manner; s2, mixing materials: starting the stirring kettle, and uniformly mixing the raw materials; s3, extrusion molding: adding the mixture processed in the step S2 into a plastic-wood forming machine, and directly extruding and forming to obtain a resin-plastic-wood profile; according to the invention, a one-step method is adopted, the raw materials are directly extruded and molded without granulation after being blended, the production efficiency is improved, the materials are dried after being mixed, the phenomenon that the materials are agglomerated due to moisture and the product quality is influenced is avoided, and the performance of the resin-plastic-wood product is improved by improving the formula of the resin-plastic-wood, so that the prepared resin-plastic-wood product has good weather resistance, mechanical property and flame retardance.
Description
Technical Field
The invention relates to the technical field of resin-plastic-wood production, in particular to a preparation process for a resin-plastic-wood composite material.
Background
Definition of resin-plastic wood: composite materials are made by compounding wood or other cellulose-based materials and thermoplastics. The composite material has the advantages of plant fiber and plastic, has wide application range, can almost cover all the application fields of log, plastic steel, aluminum alloy and other similar composite materials, and simultaneously solves the problem of recycling waste resources in the plastic and wood industries. At present, the resin-plastic wood is produced by adopting a two-step method: firstly, raw materials of wood powder, plastic and resin powder are blended and granulated, and then extrusion molding is carried out. The two-step process has low production efficiency.
Disclosure of Invention
The invention aims to provide a preparation process for a resin-plastic-wood composite material, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation process for a resin-plastic-wood composite material comprises the following steps:
s1, preparing raw materials: weighing a certain amount of wood powder, resin powder, PE plastic and an auxiliary agent as raw materials according to a proper weight ratio, and sequentially adding the wood powder, the auxiliary agent, the PE plastic and the resin powder into a stirring kettle in a vacuum feeding manner;
s2, mixing materials: starting the stirring kettle, and uniformly mixing the raw materials;
s3, extrusion molding: and (4) adding the mixture processed in the step S2 into a plastic-wood forming machine, and directly extruding and forming to obtain the resin-plastic-wood profile.
As a further scheme of the invention: the wood powder in the step S1 is any one of poplar powder, pine powder and fir powder.
As a further scheme of the invention: the resin powder in the step S1 is a mixture of waste resin and a main raw material obtained by industrial recycling of waste circuit boards and the like, wherein the main raw material is any one of PVC, PP, epoxy resin and phenolic resin, sampling is performed to detect whether the content of the main raw material in the resin powder mixture exceeds 50wt%, and if the content of the main raw material is lower than 50wt%, a proper amount of the main raw material is added until the content of the main raw material exceeds 50wt% of the total weight of the resin powder.
As a further scheme of the invention: the raw materials in the step S1 comprise the following components in percentage by weight: 50-60% of resin powder, 8-12% of wood powder, 17-23% of PE plastic and the balance of additives.
As a further scheme of the invention: the auxiliary agent in the step S1 comprises the following components in parts by weight: 1-5 parts of stearate, 5-7 parts of isocyanate, 1-3 parts of sodium hydroxymethyl cellulose, 1-3 parts of ammonium polyphosphate, 2-4 parts of zinc borate, 5-7 parts of talcum powder, 1-5 parts of maleic anhydride and 0.5-1.5 parts of carbon powder.
As a further scheme of the invention: the stirring speed in the step S2 is 800-1000rpm/min, and the stirring time is 30-60 min.
As a further scheme of the invention: the step S2, after the stirring, further includes drying the mixture, and specifically includes the following steps: and raising the temperature in the stirring kettle to 80-90 ℃, and drying until the water content of the mixture is lower than 5 wt%.
As a further scheme of the invention: the temperatures of the first zone, the second zone, the third zone, the fourth zone and the confluence core in the plastic wood molding machine in the step S3 are 190-.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a one-step method is adopted, the raw materials are directly extruded and molded without granulation after being blended, the production efficiency is improved, the materials are dried after being mixed, the phenomenon that the materials are agglomerated due to moisture and the product quality is influenced is avoided, and the performance of the resin-plastic-wood product is improved by improving the formula of the resin-plastic-wood, so that the prepared resin-plastic-wood product has good weather resistance, mechanical property and flame retardance.
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.
The first embodiment is as follows:
a preparation process for a resin-plastic-wood composite material comprises the following steps:
s1, preparing raw materials: weighing a certain amount of wood powder, resin powder, PE plastic and an auxiliary agent as raw materials according to a proper weight ratio, and sequentially adding the wood powder, the auxiliary agent, the PE plastic and the resin powder into a stirring kettle in a vacuum feeding manner;
s2, mixing materials: starting the stirring kettle, and uniformly mixing the raw materials;
s3, extrusion molding: and (4) adding the mixture processed in the step S2 into a plastic-wood forming machine, and directly extruding and forming to obtain the resin-plastic-wood profile.
The wood powder in the step S1 is any one of poplar powder, pine powder and fir powder.
The resin powder in the step S1 is a mixture of waste resin and a main raw material obtained by industrial recycling of waste circuit boards and the like, wherein the main raw material is any one of PVC, PP, epoxy resin and phenolic resin, sampling is performed to detect whether the content of the main raw material in the resin powder mixture exceeds 50wt%, and if the content of the main raw material is lower than 50wt%, a proper amount of the main raw material is added until the content of the main raw material exceeds 50wt% of the total weight of the resin powder.
The raw materials in the step S1 comprise the following components in percentage by weight: 50% of resin powder, 12% of wood powder, 23% of PE plastic and the balance of additives.
The auxiliary agent in the step S1 comprises the following components in parts by weight: 1 part of stearate, 5 parts of isocyanate, 1 part of sodium carboxymethylcellulose, 1 part of ammonium polyphosphate, 2 parts of zinc borate, 5 parts of talcum powder, 1 part of maleic anhydride and 0.5 part of carbon powder.
The stirring speed in the step S2 is 800rpm/min, and the stirring time is 30 min.
The step S2, after the stirring, further includes drying the mixture, and specifically includes the following steps: and raising the internal temperature of the stirring kettle to 80 ℃, and drying until the water content of the mixture is lower than 5 wt%.
The temperatures of the first zone, the second zone, the third zone, the fourth zone and the confluence core of the machine barrel in the plastic wood molding machine in the step S3 are 190 ℃, 185 ℃, 170 ℃, 165 ℃ and 150 ℃ in sequence, and the temperatures of the first zone, the second zone, the third zone and the fourth zone of the internal mold are all 145 ℃.
Example two:
the difference from the first embodiment is that: the raw materials in the step S1 comprise the following components in percentage by weight: 55% of resin powder, 10% of wood powder, 20% of PE plastic and the balance of auxiliary agents.
The auxiliary agent in the step S1 comprises the following components in parts by weight: 3 parts of stearate, 6 parts of isocyanate, 2 parts of sodium carboxymethylcellulose, 2 parts of ammonium polyphosphate, 3 parts of zinc borate, 6 parts of talcum powder, 3 parts of maleic anhydride and 1 part of carbon powder.
The stirring speed in the step S2 is 900rpm/min, and the stirring time is 45 min.
The step S2, after the stirring, further includes drying the mixture, and specifically includes the following steps: and raising the internal temperature of the stirring kettle to 85 ℃, and drying until the water content of the mixture is lower than 5 wt%.
The temperatures of the first zone, the second zone, the third zone, the fourth zone and the confluence core of the machine barrel in the plastic wood molding machine in the step S3 are 193 ℃, 187 ℃, 175 ℃, 168 ℃ and 153 ℃ in sequence, and the temperatures of the first zone, the second zone, the third zone and the fourth zone of the inner die are all 147 ℃.
Example three:
the difference from the first embodiment is that: the raw materials in the step S1 comprise the following components in percentage by weight: 60% of resin powder, 8% of wood powder, 17% of PE plastic and the balance of additives.
The auxiliary agent in the step S1 comprises the following components in parts by weight: 5 parts of stearate, 7 parts of isocyanate, 3 parts of sodium carboxymethylcellulose, 3 parts of ammonium polyphosphate, 4 parts of zinc borate, 7 parts of talcum powder, 5 parts of maleic anhydride and 1.5 parts of carbon powder.
The stirring speed in the step S2 is 1000rpm/min, and the stirring time is 60 min.
The step S2, after the stirring, further includes drying the mixture, and specifically includes the following steps: and raising the temperature in the stirring kettle to 90 ℃, and drying until the water content of the mixture is lower than 5 wt%.
The temperatures of the first zone, the second zone, the third zone, the fourth zone and the confluence core of the machine barrel in the plastic wood molding machine in the step S3 are 195 ℃, 190 ℃, 180 ℃, 170 ℃ and 155 ℃ in sequence, and the temperatures of the first zone, the second zone, the third zone and the fourth zone of the internal mold are all 150 ℃.
Test example
The resin-plastic wood prepared in the first to third examples and a certain commercially available resin-plastic wood are respectively selected for comparison, and the bending strength, the tensile strength, the notch impact strength and the heat distortion temperature of the simple beam are respectively tested according to GB/T9341, GB/T1040, GB/T1043 and GB/T1634, and the test results are as follows:
as can be seen from the above table, compared with the existing resin-plastic-wood product, the resin-plastic-wood section prepared by the invention has the advantages that the mechanical property and the flame retardant property are obviously improved.
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.
Claims (8)
1. A preparation process for a resin-plastic-wood composite material is characterized by comprising the following steps:
s1, preparing raw materials: weighing a certain amount of wood powder, resin powder, PE plastic and an auxiliary agent as raw materials according to a proper weight ratio, and sequentially adding the wood powder, the auxiliary agent, the PE plastic and the resin powder into a stirring kettle in a vacuum feeding manner;
s2, mixing materials: starting the stirring kettle, and uniformly mixing the raw materials;
s3, extrusion molding: and (4) adding the mixture processed in the step S2 into a plastic-wood forming machine, and directly extruding and forming to obtain the resin-plastic-wood profile.
2. The process of claim 1, wherein the wood flour in step S1 is any one of poplar, pine and fir.
3. The process of claim 1, wherein the resin powder in the step S1 is a mixture of waste resin obtained from industrial recycling of waste circuit boards and the like and a main raw material, wherein the main raw material is any one of PVC, PP, epoxy resin and phenolic resin, and sampling is performed to determine whether the content of the main raw material in the resin powder mixture exceeds 50wt%, and if the content is less than 50wt%, a proper amount of the main raw material is added until the content of the main raw material exceeds 50wt% of the total weight of the resin powder.
4. The process of claim 1, wherein the raw materials in the step S1 comprise, by weight: 50-60% of resin powder, 8-12% of wood powder, 17-23% of PE plastic and the balance of additives.
5. The preparation process of the resin-plastic-wood composite material as claimed in claim 1, wherein the auxiliary agent in the step S1 comprises the following components in parts by weight: 1-5 parts of stearate, 5-7 parts of isocyanate, 1-3 parts of sodium hydroxymethyl cellulose, 1-3 parts of ammonium polyphosphate, 2-4 parts of zinc borate, 5-7 parts of talcum powder, 1-5 parts of maleic anhydride and 0.5-1.5 parts of carbon powder.
6. The process as claimed in claim 1, wherein the stirring speed in step S2 is 800-1000rpm/min, and the stirring time is 30-60 min.
7. The preparation process for the resin-plastic-wood composite material according to claim 1, wherein the step S2 further comprises drying the mixed material after the stirring is completed, and specifically comprises the following steps: and raising the temperature in the stirring kettle to 80-90 ℃, and drying until the water content of the mixture is lower than 5 wt%.
8. The process as claimed in claim 1, wherein the temperatures of the first zone, the second zone, the third zone, the fourth zone and the merging core in the wood-plastic molding machine in the step S3 are 190-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010480379.6A CN111534123A (en) | 2020-05-30 | 2020-05-30 | Preparation process for resin-plastic-wood composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010480379.6A CN111534123A (en) | 2020-05-30 | 2020-05-30 | Preparation process for resin-plastic-wood composite material |
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| CN111534123A true CN111534123A (en) | 2020-08-14 |
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| CN202010480379.6A Pending CN111534123A (en) | 2020-05-30 | 2020-05-30 | Preparation process for resin-plastic-wood composite material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090155A (en) * | 2017-06-27 | 2017-08-25 | 湖南师范大学 | A kind of method that utilization printed circuit board (PCB) non-metal powder strengthens wood plastic composite |
| CN108659263A (en) * | 2018-05-24 | 2018-10-16 | 贺州钟山县双文碳酸钙新材料有限公司 | A kind of modified calcium carbonate and its application in PVC wood plastic clad plate |
| CN109294033A (en) * | 2018-09-14 | 2019-02-01 | 江西新森岱塑木科技有限公司 | A kind of plastic-wood material |
| CN110358258A (en) * | 2019-08-09 | 2019-10-22 | 江苏绿能塑木科技有限公司 | A method of it is prepared using spent resin and moulds the wooden particle |
| CN111171591A (en) * | 2019-12-31 | 2020-05-19 | 湖南格林美映鸿资源循环有限公司 | Extrusion molding formula and molding method for PE plastic wood without granulation |
-
2020
- 2020-05-30 CN CN202010480379.6A patent/CN111534123A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090155A (en) * | 2017-06-27 | 2017-08-25 | 湖南师范大学 | A kind of method that utilization printed circuit board (PCB) non-metal powder strengthens wood plastic composite |
| CN108659263A (en) * | 2018-05-24 | 2018-10-16 | 贺州钟山县双文碳酸钙新材料有限公司 | A kind of modified calcium carbonate and its application in PVC wood plastic clad plate |
| CN109294033A (en) * | 2018-09-14 | 2019-02-01 | 江西新森岱塑木科技有限公司 | A kind of plastic-wood material |
| CN110358258A (en) * | 2019-08-09 | 2019-10-22 | 江苏绿能塑木科技有限公司 | A method of it is prepared using spent resin and moulds the wooden particle |
| CN111171591A (en) * | 2019-12-31 | 2020-05-19 | 湖南格林美映鸿资源循环有限公司 | Extrusion molding formula and molding method for PE plastic wood without granulation |
Non-Patent Citations (4)
| Title |
|---|
| 张建春 等: "《汉麻籽综合利用加工技术》", 31 December 2010, 中国轻工业出版社 * |
| 程然: ""PET纤维增强HDPE木塑复合材料的成型工艺与性能"", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 许家友: ""异氰酸酯处理木粉对PVC/木粉性能的影响"", 《塑料》 * |
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Application publication date: 20200814 |