CN111136931A - Processing method of composite board - Google Patents
Processing method of composite board Download PDFInfo
- Publication number
- CN111136931A CN111136931A CN202010084691.3A CN202010084691A CN111136931A CN 111136931 A CN111136931 A CN 111136931A CN 202010084691 A CN202010084691 A CN 202010084691A CN 111136931 A CN111136931 A CN 111136931A
- Authority
- CN
- China
- Prior art keywords
- smc
- board
- layer
- composite
- composite board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/18—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The invention discloses a processing method of a composite board, which comprises the following steps: s1: SMC preparation; s2: heating the die, namely heating the upper die and the lower die to 130-140 ℃; s3: preparing a composite board, namely placing a first SMC board in a lower die, placing a foaming layer on the first SMC board, placing a second SMC board on the foaming layer, applying a layer granular material to the second SMC board or an upper die, and then putting the dies together under pressure to compress components and solidify SMC, wherein the pressure is controlled to be 10-20 MPa to prepare the composite board; s4: when the molding process is complete, the resulting composite panel is removed from the mold and the solidified SMC material is removed from the surface of the composite panel by a sand blasting process, exposing sand particles to the surface of the composite panel.
Description
Technical Field
The invention relates to a processing method of a composite board.
Background
Panels and other elements used in buildings are traditionally made of natural materials. For example, doors and panels for buildings and furniture have traditionally been made of wood. Other walls and panels have been made of either bricks or stones. However, the trend in building elements and other products traditionally using natural products is to be made of "non-natural" or synthetic products, such as plastic materials. Such modern materials have many chemical, physical and cost advantages over traditional materials. Foamed resin laminates comprising a foamed resin layer and a skin are increasingly used in the building, decoration and furniture industries because of the wide range of useful properties that can be achieved. However, such modern materials have a different appearance than traditional materials, which detracts from their attractiveness for certain applications. Plastic materials with simulated wood grain and wood grain are available and attempt to produce panels and doors having an appearance that approximates that of traditional solid wood. However, it is also desirable to provide panels and other products that simulate other types of surfaces, such as stone.
Disclosure of Invention
The invention aims to overcome the defects of the technology, thereby providing a processing method of a composite board, which can simulate the composite board of a natural decorative material.
The technical scheme adopted by the invention is as follows: the processing method of the composite board comprises the following steps:
s1: SMC preparation: mixing polyester resin, calcium carbonate and titanium dioxide to form resin slurry, coating the resin slurry on a bottom film carrier, and then applying glass fibers serving as a reinforcing material to the upper surface of the resin slurry on the film carrier; applying a further resin paste on the glass fibre layer, applying a top film to the uppermost layer of resin paste, and subsequently forming a sheet moulding sheet between the film carriers using a roller, the material being rolled onto the roller and held at a controlled temperature of 23 to 27 ℃ for at least 3 days;
s2: heating the die, namely heating the upper die and the lower die to 130-140 ℃;
s3: preparing a composite board, namely placing a first SMC board in a lower die, placing a foaming layer on the first SMC board, placing a second SMC board on the foaming layer, applying a layer granular material to the second SMC board or an upper die, and then putting the dies together under pressure to compress components and solidify SMC, wherein the pressure is controlled to be 10-20 MPa to prepare the composite board;
s4: when the molding process is complete, the resulting composite panel is removed from the mold and the solidified SMC material is removed from the surface of the composite panel by a sand blasting process, exposing sand particles to the surface of the composite panel.
The further improvement is that: in step S3, the layered granular material includes sand particles and metal particles.
The further improvement is that: in step S3, a layer of particulate material is applied by an adhesive to the second SMC plate or to the cavity of the upper mold.
The further improvement is that: in step S3, the density of the foam layer is 100-250 kg per cubic meter.
By adopting the technical scheme, the invention has the beneficial effects that: guarantee the intensity of composite sheet through both sides SMC board, through setting up the foaming layer for the whole good syllable-dividing of possessing of composite sheet, fire-retardant, heat preservation effect, the outside sets up layer granular material and forms similar natural embellishment in addition.
Detailed Description
The present invention is further illustrated below with reference to specific embodiments.
The invention discloses a processing method of a composite board, which comprises the following steps:
s1: SMC preparation: mixing polyester resin, calcium carbonate and titanium dioxide to form resin slurry, coating the resin slurry on a bottom film carrier, and then applying glass fibers serving as a reinforcing material to the upper surface of the resin slurry on the film carrier; applying a further resin paste on the glass fibre layer, applying a top film to the uppermost layer of resin paste, and subsequently forming a sheet moulding sheet between the film carriers using a roller, the material being rolled onto the roller and held at a controlled temperature of 23 to 27 ℃ for at least 3 days;
s2: heating the die, namely heating the upper die and the lower die to 130-140 ℃;
s3: preparing a composite board, namely placing a first SMC board in a lower die, placing a foaming layer on the first SMC board, placing a second SMC board on the foaming layer, applying a layer granular material to the second SMC board or an upper die, and then putting the dies together under pressure to compress components and solidify SMC, wherein the pressure is controlled to be 10-20 MPa to prepare the composite board;
s4: when the molding process is complete, the resulting composite panel is removed from the mold and the solidified SMC material is removed from the surface of the composite panel by a sand blasting process, exposing sand particles to the surface of the composite panel.
The preferred implementation in this example is: in step S3, the layered granular material includes sand particles and metal particles.
The preferred implementation in this example is: in step S3, a layer of particulate material is applied by an adhesive to the second SMC plate or to the cavity of the upper mold.
The preferred implementation in this example is: in step S3, the density of the foam layer is 100-250 kg per cubic meter.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. The processing method of the composite board is characterized in that: the method comprises the following steps:
s1: SMC preparation: mixing polyester resin, calcium carbonate and titanium dioxide to form resin slurry, coating the resin slurry on a bottom film carrier, and then applying glass fibers serving as a reinforcing material to the upper surface of the resin slurry on the film carrier; applying a further resin paste on the glass fibre layer, applying a top film to the uppermost layer of resin paste, and subsequently forming a sheet moulding sheet between the film carriers using a roller, the material being rolled onto the roller and held at a controlled temperature of 23 to 27 ℃ for at least 3 days;
s2: heating the die, namely heating the upper die and the lower die to 130-140 ℃;
s3: preparing a composite board, namely placing a first SMC board in a lower die, placing a foaming layer on the first SMC board, placing a second SMC board on the foaming layer, applying a layer granular material to the second SMC board or an upper die, and then putting the dies together under pressure to compress components and solidify SMC, wherein the pressure is controlled to be 10-20 MPa to prepare the composite board;
s4: when the molding process is complete, the resulting composite panel is removed from the mold and the solidified SMC material is removed from the surface of the composite panel by a sand blasting process, exposing sand particles to the surface of the composite panel.
2. The method of processing a composite board according to claim 1, wherein: in step S3, the layered granular material includes sand particles and metal particles.
3. The method of processing a composite board according to claim 1, wherein: in step S3, a layer of particulate material is applied by an adhesive to the second SMC plate or to the cavity of the upper mold.
4. The method of processing a composite board according to claim 1, wherein: in step S3, the density of the foam layer is 100-250 kg per cubic meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084691.3A CN111136931A (en) | 2020-02-10 | 2020-02-10 | Processing method of composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084691.3A CN111136931A (en) | 2020-02-10 | 2020-02-10 | Processing method of composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111136931A true CN111136931A (en) | 2020-05-12 |
Family
ID=70527170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084691.3A Withdrawn CN111136931A (en) | 2020-02-10 | 2020-02-10 | Processing method of composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111136931A (en) |
-
2020
- 2020-02-10 CN CN202010084691.3A patent/CN111136931A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200512 |
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| WW01 | Invention patent application withdrawn after publication |