CN113831752A - Fiber-plastic dense pressing plate and preparation method thereof - Google Patents
Fiber-plastic dense pressing plate and preparation method thereof Download PDFInfo
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- CN113831752A CN113831752A CN202111005552.8A CN202111005552A CN113831752A CN 113831752 A CN113831752 A CN 113831752A CN 202111005552 A CN202111005552 A CN 202111005552A CN 113831752 A CN113831752 A CN 113831752A
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- fiber
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- 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
- 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
-
- 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
- C08L2207/20—Recycled plastic
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a fiber-plastic dense pressing plate which is prepared from a fiber-plastic composite material serving as a raw material, wherein the fiber-plastic composite material is prepared by mixing textile fabrics and plastics. The invention also discloses a preparation method of the fiber-plastic dense pressing plate. The invention adopts the specific fiber-plastic composite material as the raw material of the dense pressing plate, the fiber-plastic composite material has more excellent mechanical property than the single component of the fiber-plastic composite material, the prepared dense pressing plate has excellent mechanical property, and meanwhile, the main material is waste, so that the cost is reduced and the resources are fully recycled; the preparation method is simple and easy, is convenient for large-scale industrial production, is environment-friendly and energy-saving in raw materials, and the prepared dense pressing plate has excellent performance and wide application field.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a fiber-plastic dense-pressing plate and a preparation method thereof.
Background
The dense pressing board is a board made of wood fiber or other plant fiber as main material and through fiber preparation, applying synthetic resin and pressing under heating and pressurizing conditions. The density board has uniform structure, fine and dense material, good physical mechanical property and processing property, can be made into boards with different thicknesses, has smooth and flat surface and firm edge, and has good decoration of the surface, thus being widely applied to furniture manufacturing industry, building industry, indoor decoration industry and the like.
Because of the shortage of forest resources in China, a large amount of wood is used for preparing the dense pressing plate, so that the environment is destroyed, and the forest resources are not fully utilized. Therefore, the search for a proper wood substitute to prepare the dense pressing plate is always the pursuit direction in the field, and the commonly used substitutes are agricultural waste fibers such as straws and the like at present, but the mechanical properties of the fibers are usually greatly reduced and the strength is insufficient when the fibers are used for preparing the dense pressing plate; the curing agent is usually thermosetting resin, and VOC can be released during processing and product use, so that health is influenced and the environment is damaged.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems of waste of wood resources and insufficient mechanical properties of the existing dense pressing plate, and provides the fiber-plastic dense pressing plate and the preparation method thereof.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention provides a fiber-plastic dense pressing plate, which is made of a fiber-plastic composite material as a raw material;
the fiber-plastic composite material is prepared by mixing textile fabrics and plastics;
the preparation method of the fiber-plastic composite material comprises the steps of crushing, opening, removing impurities and carding the interwoven textile fabric to obtain treated textile fiber; reducing the volume of the treated textile fiber and plastic, and mixing to obtain a fiber-plastic mixture; dispersing fibers in the fiber-plastic mixture in the plastic and forming an interface to obtain a fiber-plastic composite material;
the textile fabric is a new material, a reclaimed material or a compound, a blended material and a mixture of the new material and the reclaimed material, the new material comprises one or more compounds, blended materials and mixtures of chemical fibers, plant fibers and animal fibers, and the reclaimed material comprises old clothes or leftover materials generated in the textile processing process;
the plastic comprises one or more of PE, PP, PVC, PS and ABS;
the mass ratio of the treated textile fibers to the plastic is 1: 0.4-0.8.
Specifically, in the preparation method of the fiber-plastic composite material, the mixing is to mix and extrude the treated textile fiber, the organic matter and the plastic by a screw at the temperature of 150-3；
The dispersion is banburying under the conditions of no oxygen and 220 ℃ of 210-.
Furthermore, the fiber-plastic composite material also comprises auxiliary materials accounting for 10-20 wt% of the total mass, wherein the auxiliary materials comprise one or more of fillers, wood materials and processing aids;
wherein the wood material comprises one or a mixture of wood powder, rice hull and straw.
The filler comprises one or more of limestone, talcum powder, fly ash, construction waste crushing, slag and electronic circuit board crushing.
The auxiliary agent comprises one or more of mineral oil, vegetable oil, stearic acid and derivatives thereof, degraded polyolefin wax, antioxidant, ultraviolet absorbent and the like.
The invention also provides a preparation method of the upper sealing plate, which comprises the following steps:
s2: carrying out hot press molding on the fiber-plastic composite material to obtain a rough dense pressing plate;
s3: and demolding, cutting, sanding and polishing the rough seal pressing plate to obtain a seal pressing plate finished product.
Further, in step S1, the temperature is maintained at 220 ℃ and 150 ℃.
In step S2, the temperature of the die during hot pressing is 80-130 ℃, the hot pressing time is 5-10min, and the hot pressing pressure is 10-20 MPa.
In step S3, the crude pressure plate is left to stand in the mold for 1 to 3 hours before demolding.
The technical scheme of the invention has the following advantages:
(1) the invention adopts the specific fiber-plastic composite material as the raw material of the dense pressing plate, the fiber-plastic composite material has better mechanical property than the single component, the prepared dense pressing plate has excellent mechanical property, and the main material is waste, thereby reducing the cost and fully recycling the resources.
(2) The preparation method is simple and feasible, is convenient for large-scale industrial production, is environment-friendly and energy-saving in raw materials, and has excellent performance and wide application field.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
The specific preparation method of the fiber-plastic composite material used in the examples comprises the following steps:
(1) crushing the woven fabric, scattering the woven fabric into a fluffy state, repeating the process for 3 times, removing metal fragments and particles in the woven fabric by using airflow separation, and finally carding for 2 times to obtain the treated textile fiber, wherein the volume of the treated textile fiber is 3 times of that of the woven fabric, and the treated textile fiber is uniform and completely separated single fiber or fiber with a yarn structure;
(2) extruding the treated textile fiber, plastic and auxiliary materials by a screw at 200 ℃ and 100r/min, mixing and reducing the volume to obtain a blocky fiber-plastic mixture with the density of 1200kg/m3Then cooling the fiber-plastic mixture to 140 ℃; wherein the weight ratio of the textile fiber, the plastic and the auxiliary material is 1:0.5: 0.2.
(3) Banburying the fiber-plastic mixture under the conditions of no oxygen and 210 ℃ to enable the fibers to be dispersed in the plastic and form an interface to obtain the massive fiber-plastic composite material, wherein the banburying has a rotor rotating speed of 30r/min, a differential speed ratio of 1.1 and a time of 5 min.
The used textile fabrics are leftover materials and recovered uniform in a clothing factory, and the source is 'two-net fusion' garbage classification and sorting.
The used plastic is PE, and the source is 'two-network integration' garbage classification and sorting.
The used auxiliary materials are wood materials which are waste wood chips of a wood processing factory, and the sources are 'two-net fusion' garbage classification and sorting.
The filler is conventional commercially available 100-mesh calcium carbonate;
the auxiliary agent comprises conventional commercially available rubber processing oil, stearic acid and derivatives thereof, degraded polyolefin wax, antioxidant 1010 and ultraviolet absorbent UV-531;
the mass ratio of each component in the auxiliary materials is waste wood dust: calcium carbonate: rubber process oil: stearic acid: degrading the polyolefin wax: antioxidant: the ultraviolet absorbent is 10:5:1:1:1:1: 1.
Example 1
The embodiment provides a fiber-plastic dense-pressing plate which is made of a fiber-plastic composite material as a raw material, and the preparation method comprises the following specific steps:
(1) keeping the temperature of the fiber-plastic composite material at 160 ℃ and sending the fiber-plastic composite material into a mold;
(2) and (3) carrying out hot-press molding on the fiber-plastic composite material, wherein the mold temperature is 100 ℃, the hot-press time is 5min, and the hot-press pressure is 15MPa during hot-press molding, so as to obtain a crude dense-pressing plate.
(3) And standing the crude pressure plate in a mold for 2 hours, demolding, cutting, sanding and polishing to obtain a pressure plate finished product.
Example 2
The embodiment provides a fiber-plastic dense-pressing plate which is made of a fiber-plastic composite material as a raw material, and the preparation method comprises the following specific steps:
(1) keeping the temperature of the fiber-plastic composite material at 220 ℃ and sending the fiber-plastic composite material into a mold;
(2) and (3) carrying out hot-press molding on the fiber-plastic composite material, wherein the mold temperature is 80 ℃, the hot-press time is 10min, and the hot-press pressure is 10MPa during hot-press molding, so as to obtain a crude compact press plate.
(3) And standing the crude pressure plate in a mold for 3 hours, demolding, cutting, sanding and polishing to obtain a pressure plate finished product.
Example 3
The embodiment provides a fiber-plastic dense-pressing plate which is made of a fiber-plastic composite material as a raw material, and the preparation method comprises the following specific steps:
(1) keeping the temperature of the fiber-plastic composite material at 150 ℃ and sending the fiber-plastic composite material into a mold;
(2) and (3) carrying out hot-press molding on the fiber-plastic composite material, wherein the mold temperature is 130 ℃, the hot-press time is 8min, and the hot-press pressure is 20MPa during hot-press molding, so as to obtain a crude compression plate.
(3) And standing the crude pressure plate in a mold for 1 hour, demolding, cutting, sanding and polishing to obtain a pressure plate finished product.
Test examples
The fiber-plastic composite materials prepared in the examples and comparative examples of the present invention, as well as the PE new material (for injection bottle caps) derived from the Yanshan petrochemical 1300J and the recycled PE of mineral water bottle caps were subjected to performance tests, and the test results are shown in the following table 1:
table 1 results of performance test of the pressure-tight plate of the example
As can be seen from the table above, the performance effect of each example is excellent, and the performance of the prepared compact plate is far higher than that of the other compact plate compared with that of the single-component regenerated PE and the PE new material.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. The fiber-plastic dense pressing plate is characterized in that the raw material of the fiber-plastic dense pressing plate is a fiber-plastic composite material;
the fiber-plastic composite material is prepared by mixing textile fabrics and plastics;
the preparation method of the fiber-plastic composite material comprises the steps of crushing, opening, removing impurities and carding the interwoven textile fabric to obtain treated textile fiber; reducing the volume of the treated textile fiber and plastic, and mixing to obtain a fiber-plastic mixture; and dispersing the fibers in the fiber-plastic mixture in the plastic and forming an interface to obtain the fiber-plastic composite material.
2. The pressure-sealing plate as claimed in claim 1, wherein the fiber-plastic composite material further comprises 10-20 wt% of auxiliary materials in total mass, and the auxiliary materials comprise one or more of fillers, wood materials and processing aids.
3. A method for producing a pressure-sensitive sheet according to claim 1 or 2, comprising the steps of:
s1: carrying out heat preservation on the fiber-plastic composite material and conveying the fiber-plastic composite material to a mold;
s2: carrying out hot press molding on the fiber-plastic composite material to obtain a rough dense pressing plate;
s3: and demolding, cutting, sanding and polishing the rough seal pressing plate to obtain a seal pressing plate finished product.
4. The method as claimed in claim 3, wherein the temperature is maintained at 220 ℃ in step S1.
5. The production method according to claim 3 or 4, wherein in step S2, the mold temperature during hot pressing is 80-130 ℃, the hot pressing time is 5-10min, and the hot pressing pressure is 10-20 MPa.
6. The method according to any one of claims 3 to 5, wherein the crude pressure-sensitive adhesive sheet is left standing in the mold for 1 to 3 hours before the mold is released in step S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111005552.8A CN113831752A (en) | 2021-08-30 | 2021-08-30 | Fiber-plastic dense pressing plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111005552.8A CN113831752A (en) | 2021-08-30 | 2021-08-30 | Fiber-plastic dense pressing plate and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113831752A true CN113831752A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111005552.8A Pending CN113831752A (en) | 2021-08-30 | 2021-08-30 | Fiber-plastic dense pressing plate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806108A (en) * | 2022-05-21 | 2022-07-29 | 浙江省林业科学研究院 | Method for manufacturing outdoor board by using waste textile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3189950A1 (en) * | 2016-01-11 | 2017-07-12 | Flooring Technologies Ltd. | Method for manufacturing a wooden panel, in particular a wood-plastic composite |
| CN110605773A (en) * | 2019-09-24 | 2019-12-24 | 庄春平 | Synthetic wood product and manufacturing method thereof |
| CN110698113A (en) * | 2019-10-30 | 2020-01-17 | 上海理迪道具有限公司 | Rock-imitating decorative wall and manufacturing method thereof |
| CN113045877A (en) * | 2021-05-13 | 2021-06-29 | 上海纤苏新材料科技有限公司 | High-performance fiber-plastic composite material |
-
2021
- 2021-08-30 CN CN202111005552.8A patent/CN113831752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3189950A1 (en) * | 2016-01-11 | 2017-07-12 | Flooring Technologies Ltd. | Method for manufacturing a wooden panel, in particular a wood-plastic composite |
| CN110605773A (en) * | 2019-09-24 | 2019-12-24 | 庄春平 | Synthetic wood product and manufacturing method thereof |
| CN110698113A (en) * | 2019-10-30 | 2020-01-17 | 上海理迪道具有限公司 | Rock-imitating decorative wall and manufacturing method thereof |
| CN113045877A (en) * | 2021-05-13 | 2021-06-29 | 上海纤苏新材料科技有限公司 | High-performance fiber-plastic composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806108A (en) * | 2022-05-21 | 2022-07-29 | 浙江省林业科学研究院 | Method for manufacturing outdoor board by using waste textile |
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