CN112575983A

CN112575983A - Random splicing structure wood-plastic wallboard and production process thereof

Info

Publication number: CN112575983A
Application number: CN202011561482.XA
Authority: CN
Inventors: 冯起亮; 韦旭良; 张岩
Original assignee: Saint Elephant New Jewelry Jiangsu Co ltd
Current assignee: Saint Elephant New Jewelry Jiangsu Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-03-30

Abstract

The invention belongs to the technical field of building decoration materials, and relates to a randomly spliced structural wood-plastic wallboard, wherein a wood-plastic base material body is coated with a PVC/EB film, the upper surface of the wood-plastic base material body is smooth, the lower surface of the wood-plastic base material body is wavy, and the randomly spliced structural wood-plastic wallboard comprises the following components in section: the substrate comprises an equal-dividing solid body, two side end edge solid bodies, raised grains on the lower surface, hollow holes and a sawing reference groove, wherein the equal-dividing solid body is positioned at 1/3 and 2/3 of the two side end edges and divides the substrate body into three parts; and a sawing reference groove is formed in the lower surface corresponding to the equal part entity. The invention also discloses a production process of the free-form spliced wood-plastic wallboard. The wood-plastic wallboard with the random splicing structure disclosed by the invention takes wood plastic as a base material, and is coated with the PVC/EB decoration transfer printing film, the whole body is a plane, the left side, the right side and the equal parts are of solid structures, and the other parts are of hollow solid structures, so that the later-stage modeling has the advantages of strong processing type, high ductility, environmental friendliness, strong practicability and attractive appearance, and the production process is simple.

Description

Random splicing structure wood-plastic wallboard and production process thereof

Technical Field

The invention belongs to the technical field of building decoration materials, relates to a wood-plastic wallboard, and particularly relates to a randomly spliced structure wood-plastic wallboard and a production process thereof.

Background

The wood-plastic composite material is a green environment-friendly decorative material prepared by uniformly mixing wood fibers, thermoplastic polymers, chemical additives, fillers and other auxiliaries through special mixing equipment, heating in a mold and carrying out extrusion molding, has the properties and characteristics of wood and plastic, and is expected to replace novel composite materials of wood and plastic. Mainly comprises three types of PE wood plastic, PVC wood plastic and PS wood plastic, and is applied to industries of building materials, furniture, logistics packaging and the like. The wood-plastic composite material has the advantages of hardness, toughness, durability, wear resistance, stable size and the like, generally, the hardness of the wood-plastic composite material is 2-8 times higher than that of untreated logs, the wear resistance of the wood-plastic composite material is 4-5 times higher than that of untreated logs, and various special properties are endowed by flexible addition of various additives. The wood-plastic composite material has secondary processability, and the manufactured product has attractive appearance and is one of ideal substitutes of wood; the environment-friendly material is also an environment-friendly material, can be recycled, has cheap and rich raw materials, has good benefits in the aspects of reducing environmental pollution, protecting forest resources and promoting economic development, and is concerned by a plurality of researchers.

At present, the indoor wall surface is decorated by multi-purpose wallboards, wallpapers, wall cloths, diatom oozes and the like, wherein the wood-plastic (WPC) integrated wallboard is widely applied to modern building construction. The wood-plastic wallboard has good physical property, environmental protection property, appearance texture and processing property, and the production and application of the wood-plastic wallboard are continuously expanded. The wall-mounted wall board can be directly mounted on a blank wall, time and cost are saved, meanwhile, the wall-mounted wall board is personalized, fashionable, and overturns the traditional wall board. The strength and the temperature resistance of wood-plastic wallboard are poor, the service life is short, during installation, holes need to be punched in the wood-plastic wallboard and the wood-plastic wallboard is fixed on the wall, the surface of the wallboard is exposed with screws, the appearance is affected, the structure of the wood-plastic wallboard can be damaged, and the installation, the maintenance, the replacement and the like are inconvenient.

There are a lot of flaws in current wood-plastic integrated wallboard: (1) the sizes of the integrated quick-assembly wallboards in the same type are mostly fixed sizes, the single size cannot meet the requirements of customers on diversified decoration styles, and meanwhile, the ductility is not high; (2) at present, WPC wallboards are mostly of a flat buckle type, and no locking force exists after assembly, or the WPC wallboards are generally locked, so that the locking force is insufficient; (3) the WPC wallboard back is mostly the plane at present, and is not enough with the foamer contact surface when the installation, leads to the difficult unevenness wall that pastes of wallboard, and the installation is difficult.

Disclosure of Invention

In order to overcome the defects that the existing wood-plastic decorative wallboard is single in size, insufficient in common flat buckle locking force and insufficient in back surface area, the invention discloses a free-form splicing structure wood-plastic wallboard.

The technical scheme adopted by the invention is as follows:

the utility model provides a random-splicing structure wood-plastic wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, sees from its cross section, includes: the substrate comprises an equal-dividing solid body, two side end edge solid bodies, raised grains on the lower surface, hollow holes and a sawing reference groove, wherein the equal-dividing solid body is positioned at 1/3 and 2/3 of the two side end edges and divides the substrate body into three parts; and the lower surface corresponding to the equal part entity is provided with a sawing reference groove with the width of 1-5 mm.

In the preferred embodiment of the invention, the equal part has a solid width of 10-30 mm, and can be provided with a mortise.

In the preferred embodiment of the present invention, the end entities at both sides are located at both left and right ends of the substrate body, and have a width of 20-30 mm.

In the preferred embodiment of the invention, the height of the cross section arc of the raised grains on the lower surface is 0.5-2 mm.

In the preferred embodiment of the invention, the hollow holes are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part entity and the entity of the end edges at two sides; the width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm.

Furthermore, the lines of the hollow hole and the adjacent wavy lower surface are consistent with the wavy lines, and the corner of the hole is an arc angle.

In the better disclosed embodiment of the invention, the width of the wood-plastic wallboard is 200-600 mm, and the thickness of the wood-plastic wallboard is 6-12 mm.

The invention also discloses a production process of the free-form spliced wood-plastic wallboard, which comprises the following steps:

A. uniformly mixing the raw materials according to a ratio, feeding the mixture into an extruder, heating the mixture at a heating zone temperature of 140-185 ℃ for 30-35 min to soften and glue the raw materials to form fluid, and extruding the fluid into a plate shape through a free-standing splicing forming die and a shaping die in sequence;

B. the plate is cooled and shaped by passing through a cooling tank, and is divided into set sizes by traction;

C. placing the cut plate on a roller of a coating machine, and bonding the transfer printing film and the plate together by using glue, wherein the glue is a PUR hot melt adhesive, and the rotating speed of the roller is 10-20 min/min; cutting the coated plate into a specified size;

D. and (3) slotting the entity of the equal-divided part of the randomly spliced structural wood-plastic wallboard, inspecting and packaging.

In a preferred embodiment of the invention, the raw materials in the step A are as follows by mass: 10-30 parts of wood powder, 30-40 parts of PVC (polyvinyl chloride), 20-40 parts of talcum powder and 5-10 parts of processing aids, wherein the processing aids are as follows:

2-6 parts of acrylate polymer (ACR), preferably 4 parts;

1-3 parts of dioctyl phthalate (DOP), preferably 2 parts;

2-5 parts of terpene resin, preferably 4 parts;

1-3 parts of an aluminate coupling agent, preferably 2 parts;

2-5 parts of a polyester plasticizer, preferably 4 parts;

1-3 parts, preferably 2 parts of AC foaming agent (azodicarbonamide).

In the preferred embodiment of the present invention, the transfer film in step C is a PVC/EB decoration transfer film.

The randomly spliced wood-plastic wallboard disclosed by the invention has the advantages that the left end edge, the right end edge, the equal parts and the rest parts are of solid structures, the hollow solid structures are arranged at the rest parts, the wallboard can be cut into a set width, different sizes are spliced and decorated, the wallboard is suitable for different styles of design and decoration, and the wallboard is spliced in a large width; the later modeling has strong machinability and high ductility, for example, a wide wallboard with the thickness of 600mm can be milled at the positions of 200 mm, 400 mm and 600mm to open various tenon edges such as lock catches, flat buckles, double female grooves, no buckles and the like, so that various assembly effect combinations with large breadth can be achieved; the surface area of the wavy lower surface is larger than that of a plane, so that foaming agents are easier to fill, the installation is convenient, and the wavy lower surface is easier to attach to uneven wall surfaces; the wavy surface can absorb more stress, is synchronous with the decorative surface and is not easy to deform.

Advantageous effects

The invention discloses a randomly spliced structure wood-plastic wallboard, which takes wood-plastic as a base material and is coated with a PVC/EB decoration transfer printing film, the whole body is a plane, the left side, the right side and the equal parts are of solid structures, the rest parts are of hollow solid structures, the wall thickness is 6-12 mm, the later-stage modeling is high in processability and ductility, and the randomly spliced structure wood-plastic wallboard is an environmentally-friendly wallboard product with strong practicability and attractiveness. The production process is simple, and the cost is not increased too much.

Drawings

FIG. 1 is a cross section of a randomly spliced wood-plastic wallboard;

FIG. 2 is a partial cross section of a randomly spliced wood-plastic wallboard;

wherein, each part name is respectively: 1. the method comprises the following steps of equally dividing solid bodies, 2, solid bodies at two side edges, 3, wavy grains, 4, hollow holes, 5 and sawing reference grooves.

Detailed Description

The present invention will be described in detail below with reference to examples to enable those skilled in the art to better understand the present invention, but the present invention is not limited to the following examples.

Example 1

The utility model provides a random-splicing structure wood-plastic wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, sees from its cross section, includes: the substrate comprises an equal-dividing solid body 1, two side end edge solid bodies 2, raised grains 3 on the lower surface, hollow holes 4 and saw cutting reference grooves 5, wherein the equal-dividing solid body 1 is positioned at 1/3 and 2/3 of two side end edges and equally divides a substrate body into three parts; the lower surface corresponding to the equal-division entity 1 is provided with a sawing reference groove 5 with the width of 1-5 mm. The hollow holes 4 are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part of the entity 1 and the entity 2 at the end edges at two sides; the width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm.

Example 2

The utility model provides a random-splicing structure wood-plastic wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, sees from its cross section, includes: the substrate comprises an equal-dividing solid body 1, two side end edge solid bodies 2, raised grains 3 on the lower surface, hollow holes 4 and saw cutting reference grooves 5, wherein the equal-dividing solid body 1 is positioned at 1/3 and 2/3 of two side end edges and equally divides a substrate body into three parts; the two side end entities 2 are positioned at the left end and the right end of the substrate body, and the width is 20-30 mm; the lower surface corresponding to the equal-division entity 1 is provided with a sawing reference groove 5 with the width of 1-5 mm. The hollow holes 4 are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part of the entity 1 and the entity 2 at the end edges at two sides; the width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm.

Example 3

The utility model provides a random-splicing structure wood-plastic wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, sees from its cross section, includes: the substrate comprises an equal-dividing solid body 1, two side end edge solid bodies 2, raised grains 3 on the lower surface, hollow holes 4 and saw cutting reference grooves 5, wherein the equal-dividing solid body 1 is positioned at 1/3 and 2/3 of two side end edges and equally divides a substrate body into three parts; the two side end entities 2 are positioned at the left end and the right end of the substrate body, and the width is 20-30 mm; the lower surface corresponding to the equal-division entity 1 is provided with a sawing reference groove 5 with the width of 1-5 mm. The hollow holes 4 are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part of the entity 1 and the entity 2 at the end edges at two sides; the lines of the hollow hole 4 adjacent to the wavy lower surface are consistent with the wavy lines, and the corner of the hole is an arc angle. The width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm.

Example 4

The utility model provides a random-splicing structure wood-plastic wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, sees from its cross section, includes: the substrate comprises an equal-division entity 1, two side end entity bodies 2, wavy patterns 3 on the lower surface, hollow holes 4 and a sawing reference groove 5, wherein the equal-division entity 1 is positioned at 1/3 and 2/3 of the two side end edges, divides the substrate body into three parts, has the width of 10-30 mm and can be provided with a mortise; the two side end entities 2 are positioned at the left end and the right end of the substrate body, and the width is 20-30 mm; the lower surface corresponding to the equal-division entity 1 is provided with a sawing reference groove 5 with the width of 1-5 mm. The hollow holes 4 are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part of the entity 1 and the entity 2 at the end edges at two sides; the lines of the hollow hole 4 adjacent to the wavy lower surface are consistent with the wavy lines, and the corner of the hole is an arc angle. The width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm. The height of the cross section arc of the raised grains 3 on the lower surface is 0.5-2 mm.

The width of the wood-plastic wallboard is 200-600 mm, and the thickness of the wood-plastic wallboard is 6-12 mm.

Example 5

A production process of a randomly spliced wood-plastic wallboard comprises the following steps:

A. uniformly mixing raw materials such as wood powder, PVC, talcum powder and the like according to a ratio, feeding the mixture into an extruder, heating the mixture at a heating zone temperature of 140-185 ℃ for 30-35 min to soften and glue the raw materials, forming fluid, and extruding the fluid into a plate shape through a free-standing assembling forming die and a shaping die in sequence;

C. placing the cut plates on a roller of a coating machine, and bonding the transfer printing film and the plates together by using glue, wherein the glue is PUR hot melt adhesive, and the rotating speed of the roller is 10-20 min/min; cutting the coated plate into a specified size;

Example 6

A. uniformly mixing wood powder, PVC, talcum powder and other raw materials in proportion, feeding the mixture into an extruder, heating the mixture at the temperature of 140-185 ℃ for 30-35 min to soften and glue the raw materials, forming fluid, and extruding the fluid into a plate shape through a free-standing splicing forming die and a shaping die, wherein the proportion is as follows by mass: 10-30 parts of wood powder, 30-40 parts of PVC, 20-40 parts of talcum powder and 5-10 parts of processing aid;

C. placing the cut plates on a roller of a coating machine, and bonding the transfer printing film and the plates together by using glue, wherein the glue is PUR hot melt adhesive, and the rotating speed of the roller is 10-20 min/min; cutting the coated plate into a specified size, wherein the transfer printing film is a PVC/EB decoration transfer printing film;

Wherein, the processing aid in the step A is:

2-6 parts of acrylate polymer (ACR), preferably 4 parts;

1-3 parts of dioctyl phthalate (DOP), preferably 2 parts;

2-5 parts of terpene resin, preferably 4 parts;

1-3 parts of an aluminate coupling agent, preferably 2 parts;

2-5 parts of a polyester plasticizer, preferably 4 parts;

1-3 parts, preferably 2 parts of AC foaming agent (azodicarbonamide).

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. The utility model provides a random piece together structure wood and mould wallboard, wood-plastic substrate body cladding have PVC EB membrane, and its upper surface is level and smooth, and the lower surface is wavy, and its characterized in that sees from its cross section, includes: the substrate comprises an equal-part entity (1), two side end edge entities (2), a wave pattern (3) on the lower surface, a hollow hole (4) and a sawing reference groove (5), wherein the equal-part entity (1) is positioned at 1/3 and 2/3 of the two side end edges and equally divides the substrate body into three parts; the lower surface that the equal part entity (1) corresponds is equipped with saw cutting benchmark recess (5), width 1 ~ 5 mm.

2. The haphazard splice wood-plastic wallboard of claim 1, wherein: the equal part entity (1) is 10-30 mm in width and can be mortised.

3. The haphazard splice wood-plastic wallboard of claim 1, wherein: the two side end edge entities (2) are positioned at the left end and the right end of the substrate body, and the width of the two side end edge entities is 20-30 mm.

4. The haphazard splice wood-plastic wallboard of claim 1, wherein: the height of the cross section circular arc of the raised grains (3) on the lower surface is 0.5-2 mm.

5. The haphazard splice wood-plastic wallboard of claim 1, wherein: the hollow holes (4) are uniformly positioned in the middle layer of the substrate body and are not distributed at the equal part of the solid bodies (1) and the end edge solid bodies (2) at two sides; the width of the holes is 8-15 mm, the distance between adjacent holes is 1-5 mm, the distance between the holes and the upper surface is 1-3 mm, and the distance between the holes and the wavy lower surface is 1-3 mm.

6. The haphazard splice wood-plastic wallboard of claim 1, wherein: the lines of the hollow hole (4) adjacent to the wavy lower surface are consistent with the wavy lines, and the corner of the hole is an arc angle.

7. The haphazard splice wood-plastic wallboard of claim 1, wherein: the width of the wood-plastic wallboard is 200-600 mm, and the thickness of the wood-plastic wallboard is 6-12 mm.

8. A production process for preparing the random-splicing structure wood-plastic wallboard according to any one of claims 1 to 7, which is characterized by comprising the following steps:

9. The production process of the randomly spliced structure wood-plastic wallboard according to claim 8, characterized in that: the raw materials in the step A are proportioned as follows by mass: 10-30 parts of wood powder, 30-40 parts of PVC, 20-40 parts of talcum powder and 5-10 parts of processing aid.

10. The production process of the randomly spliced structure wood-plastic wallboard according to claim 8, characterized in that: and step C, the transfer printing film is a PVC/EB decoration transfer printing film.