CN111251672A - Hot-pressed composite board and processing method thereof - Google Patents
Hot-pressed composite board and processing method thereof Download PDFInfo
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- CN111251672A CN111251672A CN202010130391.4A CN202010130391A CN111251672A CN 111251672 A CN111251672 A CN 111251672A CN 202010130391 A CN202010130391 A CN 202010130391A CN 111251672 A CN111251672 A CN 111251672A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
Abstract
The invention belongs to the field of decoration and fitment, and provides a hot-pressed composite board and a processing method thereof, wherein the method comprises the following steps: bonding the base material and the plastic substrate by using glue, and compounding and maintaining at a certain temperature to cure the glue; trimming redundant glue and plastic substrates around the base material to obtain a composite board primary board; heating the primary plate of the composite plate to the softening temperature of the plastic substrate for 10-15 minutes to enable the plastic substrate to be in a softened state; and further pressurizing and closing the mould, laminating the plastic substrate into a preset structure, cooling and demoulding to obtain the hot-pressed composite board. The method of the invention improves the operability and the yield of the hot-pressed composite board.
Description
Technical Field
The invention belongs to the field of decoration and relates to a hot-pressed composite board.
Background
Ceramic tile/stone composite panels for flooring systems are now widely used in the decoration industry. At present, the production and processing technology of the composite board mainly adopts gluing or injection molding, and the two modes have obvious defects: the first is that the ceramic tile/stone material and the plastic base plate which is injected are directly glued and bonded, but the process has higher requirement on the position precision during compounding; the second is to directly perform injection molding processing after grooving the ceramic tile/stone, but the melted plastic and the ceramic tile/stone cannot be completely glued in the mold, and the ceramic tile/stone is a hard brittle material, while the pressure of the injection mold is high, and the corners of the ceramic tile/stone are easily damaged in the direct injection molding process. Thus, both of these methods produce composite board products that are susceptible to quality defects and are inefficient. Therefore, there is a need for a method of manufacturing ceramic tile/stone composite panels that ensures quality and yield.
Disclosure of Invention
The invention aims to provide a processing method of a hot-pressed composite board, which aims to solve the problems in the prior art.
In a first aspect, there is provided a method of processing a hot-pressed composite panel, comprising the steps of:
1) bonding the base material and the plastic substrate by using glue, and compounding and maintaining at a certain temperature to cure the glue;
preferably, the substrate is ceramic tile or stone;
preferably, the plastic substrate can be a plate formed by thermoplastic plastics such as PP, ABS and the like through an extrusion molding process; these thermoplastic sheets are conventional in the art;
preferably, the edge of the base material does not exceed the edge of the plastic substrate; more preferably, the length of the base material is 600-1200 mm, the width is 600-1200 mm, and the thickness is 8-12 mm; the length of the plastic substrate is 1500-3000 mm, the width is 1200-1800 mm, and the thickness is 4-6 mm;
preferably, the glue is two-component polyurethane glue;
preferably, the compounding pressure is 3-15 MPa, the temperature is 45-70 ℃, preferably 60 ℃, and the curing time is at least 24 hours;
2) trimming redundant glue and plastic substrates around the base material to obtain a composite board primary board;
3) heating the primary plate of the composite plate to the softening temperature of the plastic substrate for 10-15 minutes to enable the plastic substrate to be in a softened state; further pressurizing and closing the mold, laminating the plastic substrate into a preset structure, cooling and demolding to obtain a hot-pressed composite board;
the temperature nodes experienced by thermoplastic articles during processing are divided into softening temperatures and melting temperatures. The temperature of the common processes such as injection molding, extrusion and the like during processing belongs to the melting temperature of thermoplastic plastics; the softening temperature is the temperature at which the thermoplastic is heated to a temperature at which it can be reshaped.
Preferably, the softening temperature is 90-150 ℃, the softening temperature of specific materials is different, the softening temperature of PP plastic is 140-150 ℃, and the softening temperature of ABS plastic is 100-110 ℃;
preferably, the pressure for pressurizing is 30 to 50bar, preferably 40 bar;
preferably, the mould has an inner cavity, and can make the plastic substrate form female mouth of pegging graft, public mouth of pegging graft, strengthening rib and support column.
In a second aspect, there is provided a hot-pressed composite panel made using the process of the invention.
Preferably, the hot-pressed composite board comprises a front surface with a base material as a finishing surface and a back surface with a plastic substrate as an installation surface, wherein the edge of the back surface is provided with male insertion ports and female insertion ports which are distributed at intervals, the male insertion ports are of a convex structure, and the female insertion ports are of a concave structure, so that different hot-pressed composite boards can be connected through the male insertion ports and the female insertion ports; further preferably, 3-4 plug-in male ports and 3-4 plug-in female ports are arranged at intervals on each edge of the hot-pressed composite board, and the number of the plug-in male ports is equal to that of the plug-in female ports;
preferably, the back face is further provided with reinforcing ribs and supporting columns which are formed through a die.
According to the processing method of the hot-pressed composite board, the softening temperature of the thermoplastic plastic is used as the temperature condition of the processing technology of the composite board, the composite board is firstly compounded and then molded, the operability and the yield of the hot-pressed composite board are improved, the yield reaches over 80 percent, and the production efficiency reaches 30 s/block. Compared with the process of injection molding and compounding, the requirement on position precision during compounding is avoided; compared with the direct injection molding process, the method avoids the problem of gluing quality caused by difficult bonding of plastics and ceramic tiles/stones.
Drawings
FIG. 1 is a schematic structural diagram of a front side (A) and a back side (B) of a hot-pressed composite board prepared by the method of the present invention;
fig. 2 is a schematic structural diagram of a plurality of hot-pressed composite boards prepared by the method of the present invention after being assembled, wherein a is a front surface and B is a back surface.
Detailed Description
The present disclosure will be described in detail below with reference to specific examples, but the present disclosure is not limited thereto. It will be appreciated by those skilled in the art that variations may be made in this disclosure without departing from the spirit of the invention, which is not limited to the embodiments described herein.
In the following examples, materials and instruments used, such as tile, stone, PP thermoplastic, ABS thermoplastic, two-component polyurethane glue, vertical injection molding machine, etc., are conventional materials and instruments and are commercially available, unless otherwise specified. The invention resides primarily in the modification of the process, and the choice of materials and apparatus should not be taken as a limitation of the process.
Example 1: processing of ceramic tile hot-pressing composite board
The method comprises the steps of taking 600X 10mm tiles and 2500X 1240X 4mm PP thermoplastic plastics, and bonding the tiles by using two-component polyurethane glue, wherein 2 tiles are placed in the width direction of the thermoplastic plastics, and 4 tiles are placed in the length direction of the thermoplastic plastics. Compounding for 24h under the pressure of 3MPa and the temperature of 45 ℃ to completely cure the glue. And cutting and trimming redundant glue and plastics around the ceramic tile to obtain a composite board primary board, wherein the upper surface and the lower surface of the composite board primary board are flat surfaces. And (3) putting the composite board primary board into a mould of an injection molding machine, closing the mould up and down, heating to the softening temperature of the plastic of 140-150 ℃, continuing for 10 minutes to enable the PP plastic to be in a softened state similar to a jelly form, and pressurizing at 40 bar. Further closing the die, and because the die is provided with an inner cavity, softened plastic is extruded out of the inserting female port, the inserting male port, the reinforcing ribs and the supporting columns, and cooling and demolding are carried out; thus finishing the processing of a hot-pressed composite board with the specification of 600 multiplied by 14 mm. Because the process of firstly compounding and secondly hot pressing is adopted, in the pressing process of the injection molding machine, softened plastics are arranged on the primary back surface of the composite plate to serve as a cushion layer, the yield is 84%, and the production efficiency is 30 s/block.
The structure of the resulting hot pressed composite panel is shown in fig. 1. Where a shows the front face of the hot pressed composite panel, i.e. the tile face or finish, which is a planar structure. B shows hot pressing composite sheet's the back, can see that, through the effect of mould, the edge of plastics is extruded interval distribution's public mouthful of grafting and the female mouth of grafting, and wherein the public mouthful of grafting is protruding structure, and the female mouth of grafting is the concave yield structure, and every limit has 3 public mouthful of grafting and 3 female mouths of grafting respectively, and the interval sets up for different hot pressing composite sheet can be connected through the public mouthful of grafting and the female mouth of grafting. Fig. 2 a and B show the condition after the splicing of a plurality of hot-pressed composite boards, and it can be seen that the hot-pressed composite boards of the present invention are fast to manufacture, high in forming rate, convenient to splice, and suitable for large-scale application.
Example 2: processing of stone hot-pressing composite board
The method comprises the steps of taking 1200X 800X 10mm stone and 2800X 1700X 6mm ABS thermoplastic plastics, and bonding the stone and the ABS thermoplastic plastics by using double-component polyurethane glue, wherein 2 stones are placed in the width direction and 2 stones are placed in the length direction of the thermoplastic plastics. Compounding for 24h under the pressure of 15MPa and the temperature of 60 ℃ to completely cure the glue. And cutting the stone material and trimming the redundant glue and plastic around to obtain a composite board primary board, wherein the upper surface and the lower surface of the composite board primary board are flat surfaces. And (3) putting the composite board primary board into a mould of an injection molding machine, closing the mould up and down, heating to the softening temperature of the plastic of 100-110 ℃, continuing for 15 minutes to enable the ABS plastic to be in a softening state similar to a jelly form, and pressurizing at 30 bar. Further closing the die, and because the die is provided with an inner cavity, softened plastic is extruded out of the inserting female port, the inserting male port, the reinforcing ribs and the supporting columns, and cooling and demolding are carried out; thus finishing the processing of a hot-pressed composite board with the specification of 1200 multiplied by 800 multiplied by 16 mm. The yield is 85%, and the production efficiency is 35 s/block.
The structure of the obtained stone + plastic hot-pressed composite board is also shown in figure 1, and the spliced structure is shown in figure 2.
Comparative example 1:
the same tile and PP thermoplastic as in example 1 were used, the plastic was cut out according to the tile specifications and then bonded with two-component polyurethane glue. The compounding conditions were the same as in example 1. The scheme needs to be accurately aligned when being compounded, so that the efficiency is low, 4-5 min/block, and the yield is 38%.
Comparative example 2:
the same tile and PP thermoplastics as in example 1 were used and processed by direct injection molding, specifically: the ceramic tile is subjected to secondary grooving and cutting, the molten plastic and the ceramic tile are glued in a mold, and then pressure is applied through an injection molding machine, so that the ceramic tile is easy to damage due to the large pressure of the injection molding machine, the mold closing speed needs to be reduced, the production efficiency is extremely low, about 3-5 min/tile, and the yield is less than 10%.
Claims (10)
1. A processing method of a hot-pressed composite board comprises the following steps:
1) bonding the base material and the plastic substrate by using glue, and compounding and maintaining at a certain temperature to cure the glue;
2) trimming redundant glue and plastic substrates around the base material to obtain a composite board primary board;
3) heating the primary plate of the composite plate to the softening temperature of the plastic substrate for 10-15 minutes to enable the plastic substrate to be in a softened state; and further pressurizing and closing the mould, laminating the plastic substrate into a preset structure, cooling and demoulding to obtain the hot-pressed composite board.
2. The processing method according to claim 1,
in the step 1), the compounding pressure is 3-15 MPa, the temperature is 45-70 ℃, preferably 60 ℃, and the curing time is at least 24 hours.
3. The processing method according to claim 1,
in the step 3), the softening temperature is 90-150 ℃.
4. The processing method according to claim 1,
in the step 3), the pressurizing pressure is 30-50 bar, preferably 40 bar.
5. The processing method according to claim 1,
the mould has the inner chamber, can make plastic substrate form female mouth of pegging graft, public mouth of pegging graft, strengthening rib and support column.
6. The processing method according to any one of claims 1 to 5,
the base material is ceramic tile or stone; the plastic substrate is a plate formed by PP or ABS thermoplastic plastics through an extrusion molding processing technology.
7. The processing method according to claim 6,
the edge of the base material does not exceed the edge of the plastic substrate; preferably, the length of the base material is 600-1200 mm, the width is 600-1200 mm, and the thickness is 8-12 mm; the plastic substrate is 1500-3000 mm long, 1200-1800 mm wide and 4-6 mm thick.
8. The processing method according to any one of claims 1 to 6,
the glue is double-component polyurethane glue.
9. A hot-pressed composite board prepared by the processing method of any one of claims 1 to 8.
10. The hot-pressed composite board according to claim 9, wherein the hot-pressed composite board comprises a front surface with a base material as a finishing surface and a back surface with a plastic substrate as a mounting surface, wherein the edge of the back surface is provided with male plugging ports and female plugging ports which are distributed at intervals, the male plugging ports are of a convex structure, and the female plugging ports are of a concave structure, so that different hot-pressed composite boards can be connected through the male plugging ports and the female plugging ports; preferably, 3-4 plug-in male ports and 3-4 plug-in female ports are arranged at intervals on each edge of the hot-pressed composite board, and the number of the plug-in male ports is equal to that of the plug-in female ports;
preferably, the back face is further provided with reinforcing ribs and supporting columns.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130391.4A CN111251672B (en) | 2020-02-28 | 2020-02-28 | Hot-pressed composite board and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010130391.4A CN111251672B (en) | 2020-02-28 | 2020-02-28 | Hot-pressed composite board and processing method thereof |
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| Publication Number | Publication Date |
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| CN111251672A true CN111251672A (en) | 2020-06-09 |
| CN111251672B CN111251672B (en) | 2022-03-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999444Y (en) * | 2007-01-19 | 2008-01-02 | 黄志贵 | Fast-fixed stone plastic clad plate |
| CN101313114A (en) * | 2005-10-04 | 2008-11-26 | Comc有限责任公司 | Modular flooring assemblies |
| CN203078611U (en) * | 2012-12-31 | 2013-07-24 | 重庆定普工贸有限公司 | Light weight type rear floor of automobile |
| CN108442645A (en) * | 2018-05-23 | 2018-08-24 | 郑素梅 | A kind of environment protection tile and production method of the easy paving of fire-proof and damp-proof with lock |
-
2020
- 2020-02-28 CN CN202010130391.4A patent/CN111251672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313114A (en) * | 2005-10-04 | 2008-11-26 | Comc有限责任公司 | Modular flooring assemblies |
| CN200999444Y (en) * | 2007-01-19 | 2008-01-02 | 黄志贵 | Fast-fixed stone plastic clad plate |
| CN203078611U (en) * | 2012-12-31 | 2013-07-24 | 重庆定普工贸有限公司 | Light weight type rear floor of automobile |
| CN108442645A (en) * | 2018-05-23 | 2018-08-24 | 郑素梅 | A kind of environment protection tile and production method of the easy paving of fire-proof and damp-proof with lock |
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| CN111251672B (en) | 2022-03-29 |
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