Fabricated laminate flooring with gypsum fiberboard as base material

Abstract

The utility model provides an assembly type laminate flooring with a gypsum fiberboard as a base material. The assembly type laminate flooring comprises a balance layer, a gypsum fiberboard base material layer, a decorative layer and a wear-resistant layer which are sequentially contacted, the gypsum fiberboard base material layer comprises a gypsum base material and plant fibers distributed in the gypsum base material; the diameter of the plant fibers is 0.5-40 [mu] m; the length of the plant fibers is 0.1 to 3mm; the thickness of the balance layer ranges from 0.1 mm to 1.0 mm, the thickness of the gypsum fiberboard base material layer ranges from 6 mm to 20 mm, the thickness of the decoration layer ranges from 0.1 mm to 1.0 mm, and the thickness of the wear-resistant layer ranges from 0.1 mm to 1.0 mm. According to the assembly type laminate flooring with the gypsum fiberboard as the base material, the combustion performance grade can meet the requirement of A-grade non-combustible materials, the formaldehyde emission of the board can reach the ENF environmental protection grade, the dry shrinkage rate of the gypsum board is low, the size stability of the board is high, and buckling deformation is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fabricated material, especially relates to a fabricated reinforced floor with gypsum fiberboard as base material. BACKGROUND

[0002] With the continuous development of human society, wood resources are increasingly scarce, in order to meet the growing demand for wood products, melamine decorative paper as a surface decoration material is more and more applied to the decoration of wallboard, furniture board, reinforced composite floor, artificial board and other various board materials.

[0003] Impregnated paper laminated wood floor with particle board, shaving board, cabinet board and multi-layer board as base material cannot reach the requirement of A-grade non-combustible material according to GB8624-2012 building materials and product combustion performance grade due to the limitation of material itself. A large amount of adhesive glue needs to be added when preparing wood artificial board base material, which leads to high formaldehyde emission and VOC emission of the board. According to the classification standard of GB / T 39600-2021 artificial board and product formaldehyde emission classification, it is difficult to reach E NF grade environmental protection level.

[0004] The fabricated reinforced floor with gypsum fiberboard as base material uses gypsum fiberboard as base material, and the combustion performance grade can meet the requirement of A-grade non-combustible material. The base material is formed by the hydration and hardening of building gypsum, and does not need to add any glue, so that the formaldehyde emission of the board can reach E NF grade environmental protection level. Gypsum has good thermal stability, low board dry shrinkage rate, high board dimensional stability and is not easy to warp and deform.

[0005] In addition to making up for the shortcomings of impregnated paper laminated wood floor, the fabricated reinforced floor with gypsum fiberboard as base material also has excellent surface performance, such as pollution resistance, resistance to cigarette burning, crack resistance, cold and hot cycle resistance, wear resistance, scratch resistance, pollution resistance, water vapor resistance, dry heat resistance, wet heat resistance, boiling water resistance, mildew resistance and antibacterial performance. The fabricated reinforced floor with gypsum fiberboard as base material has rich decorative patterns, such as stone pattern, wood pattern, leather pattern, cloth pattern and pure color, and is suitable for office space, medical space, hotel space, catering space, education space and home space. INVENTION CONTENTS

[0006] The utility model aims at providing a fabricated reinforced floor with gypsum fiberboard as base material. The fabricated reinforced floor in the utility model can meet the requirement of A-grade non-combustible material, the formaldehyde emission of the board can reach E NF grade environmental protection level, and has good thermal stability, low board dry shrinkage rate, high board dimensional stability and is not easy to warp and deform.

[0007] The utility model provides a kind of assembly type reinforced floor with gypsum fiber board as base material, including the balance layer, gypsum fiber board base material layer, decorative layer and wear-resistant layer that contact successively;

[0008] The gypsum fiber board base material layer includes gypsum base material and plant fiber distributed in the gypsum base material;The diameter of the plant fiber is 0.5-40 μm;The length of the plant fiber is 0.1-3 mm;

[0009] The thickness of the balance layer is 0.1-1.0 mm, the thickness of the gypsum fiber board base material layer is 6-20 mm, the thickness of the decorative layer is 0.1-1.0 mm, and the thickness of the wear-resistant layer is 0.1-1.0 mm.

[0010] Preferably, the balance layer includes laminated and attached melamine impregnated adhesive film and first base material layer, and the first base material layer includes one or more layers of kraft paper, glass cloth or non-woven paper.

[0011] Preferably, the first base material layer is in contact with the gypsum fiber board base material layer.

[0012] Preferably, the decorative layer includes laminated and attached melamine impregnated adhesive film and second base material layer, and the second base material layer includes one or more layers of kraft paper, glass cloth or non-woven paper.

[0013] Preferably, the second base material layer is in contact with the gypsum fiber board base material layer.

[0014] Preferably, the wear-resistant layer includes raw paper layer and resin layer, and the resin layer has corundum particles with a particle size of 1-50 μm dispersed therein.

[0015] Preferably, the assembly type reinforced floor with gypsum fiber board as base material is flat buckle type floor or lock buckle type floor.

[0016] Preferably, the assembly type reinforced floor with gypsum fiber board as base material has a thickness of 6-20 mm.

[0017] The utility model provides a kind of assembly type reinforced floor with gypsum fiberboard as base material, including the balance layer, gypsum fiberboard base material layer, decorative layer and wear layer that contact successively;The gypsum fiberboard base material layer includes gypsum base material and plant fiber distributed in the gypsum base material;The diameter of the plant fiber is 0.5~40 μm;The length of the plant fiber is 0.1~3mm;The thickness of the balance layer is 0.1~1.0mm, the thickness of the gypsum fiberboard base material layer is 6~20mm, the thickness of the decorative layer is 0.1~1.0mm, the thickness of the wear layer is 0.1~1.0mm.The utility model provides a kind of assembly type reinforced floor with gypsum fiberboard as base material, base material uses gypsum fiberboard, and combustion performance grade can reach the requirement of A-grade non-combustible material.The base material is formed by the hydration hardening of building gypsum itself, without adding any glue, so the formaldehyde emission of the board can reach the ENF environmental protection level.Gypsum is heat stable, the board has low dry shrinkage, and the dimensional stability of the board is high, so the board is not prone to warping deformation.The assembly type reinforced floor with gypsum fiberboard as base material in the utility model has excellent surface properties, such as pollution resistance, resistance to cigarette burning, crack resistance, cold and hot cycle resistance, wear resistance, scratch resistance, pollution resistance, water vapor resistance, dry heat resistance, wet heat resistance, boiling water resistance, mildew resistance and antibacterial properties, and the decorative layer has a variety of patterns, such as stone pattern, wood pattern, leather pattern, cloth pattern and solid color, so the assembly type reinforced floor with gypsum fiberboard as base material is suitable for office space, medical space, hotel space, catering space, educational space and home space. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is the structural schematic diagram of assembly type reinforced floor with gypsum fiberboard as base material in the utility model;

[0020] Figure 1 In it, 1 is gypsum fiberboard base material layer, 2 is decorative layer, 3 is wear layer, and 4 is balance layer.

[0021] Figure 2 It is the schematic diagram of two kinds of lock catch connection mode of assembly type reinforced floor with gypsum fiberboard as base material in the utility model. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] The utility model provides a kind of assembly type reinforced floor with gypsum fiberboard as base material, including the balance layer, gypsum fiberboard base material layer, decorative layer and wear layer that contact successively;

[0024] The gypsum fiberboard base material layer includes gypsum base material and plant fiber distributed in the gypsum base material;The diameter of the plant fiber is 0.5-40 μm;The length of the plant fiber is 0.1-3 mm;

[0025] The thickness of the balance layer is 0.1-1.0 mm, the thickness of the gypsum fiberboard base material layer is 6-20 mm, the thickness of the decorative layer is 0.1-1.0 mm, and the thickness of the wear layer is 0.1-1.0 mm.

[0026] In the utility model, the balance layer includes laminated and attached melamine impregnated adhesive film and first base material layer, the first base material layer includes one or more layers of kraft paper, glass fiber cloth or non-woven paper;The first base material layer is in contact with the gypsum fiberboard base material layer;The thickness of the balance layer is preferably 0.1-1.0 mm, more preferably 0.2-0.8 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, preferably the range value above any of the above values as upper limit or lower limit.

[0027] In the utility model, the gypsum fiberboard base material layer includes gypsum base material and plant fiber distributed in the gypsum base material;The gypsum is prepared by industrial byproduct gypsum or natural gypsum, preferably building gypsum, more preferably desulfurization building gypsum;The mass fraction of gypsum in the gypsum fiberboard base material layer is preferably 79-83%;The plant fiber preselected includes one or more of wood fiber, paper fiber, cotton fiber, hemp fiber, straw fiber and paper mill tail pulp fiber;The mass fraction of plant fiber in the gypsum fiberboard base material layer is preferably 17-21%;The diameter of the plant fiber is preferably 0.5-40 μm, more preferably 10-30 μm;Length is preferably 0.1-3 mm, more preferably 0.5-2.5 mm.

[0028] In the utility model, the gypsum fiberboard substrate layer preferably further includes waterproof agent, the waterproof agent preferably is hydrogen-containing silicone oil, the mass fraction of hydrogen-containing silicone oil in gypsum fiberboard substrate layer preferably is 0.5~1%.

[0029] In the utility model, the thickness of gypsum fiberboard substrate layer preferably is 6~20mm, more preferably 8~18mm, such as 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, preferably the range value with any of the above values as upper limit or lower limit.

[0030] In the utility model, the decorative layer includes laminatedly attached melamine impregnated adhesive film and second substrate layer, the second substrate layer includes one or more layers of kraft paper, glass cloth or non-woven paper;The second substrate layer is in contact with the gypsum fiberboard substrate layer;The thickness of decorative layer preferably is 0.1~1.0mm, more preferably 0.2~0.8mm, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, preferably the range value with any of the above values as upper limit or lower limit.

[0031] In the utility model, the wear-resistant layer includes raw paper layer and resin layer, and corundum particles with a particle size of 1-50 μm are dispersed in the resin layer. The wear-resistant layer is preferably formed by impregnating raw paper with resin containing aluminum oxide (corundum) particles. The resin is preferably modified melamine resin, urea-formaldehyde resin, phenolic resin or epoxy resin. The particle size of the corundum particles is preferably 1-50 μm, more preferably 5-40 μm. The addition amount of corundum particles in the wear-resistant layer is preferably 20-100 g / m 2 , more preferably 30-80 g / m 2 .

[0032] In the utility model, the thickness of wear-resistant layer is preferably 0.1-1.0 mm, more preferably 0.2-0.8 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, preferably the range value with any of the above values as upper limit or lower limit.

[0033] In the utility model, the attaching mode of gypsum fiberboard substrate layer and decorative layer is preferably hot-pressing or cold-pressing. The temperature of hot-pressing is preferably 60-100 ℃. The time of hot-pressing is preferably 20 min-60 min. The pressure of hot-pressing is preferably 0.2 MPa-30 MPa.

[0034] In the utility model, the glue used for bonding is preferably two-component polyurethane glue, silane-terminated polyether glue, MDI glue, lignin glue, natural bean glue, silicone glue or PUR hot melt glue and the like environment-friendly formaldehyde-free glue.

[0035] In the utility model, the thickness of the assembly type reinforced floor with the gypsum fiber plate as the base material is preferably 6-20 mm, more preferably 10-18 mm, such as 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, preferably a range value with any of the above values as the upper limit or lower limit.

[0036] In the utility model, according to the different installation and splicing modes, the four peripheral edges of the plate of the assembly type reinforced floor with the gypsum fiber plate as the base material can be made into flat buckle type floor or lock buckle type floor, the flat buckle type floor is laid by the gluing mode, the lock buckle type floor does not need nails, glue and keel assistance in the laying process, adopts the connecting mode of rabbet and tongue (such as shown in the drawing), and glue-free laying can be realized. Figure 2

[0037] Example 1:

[0038] An assembly type reinforced floor with a gypsum fiber plate as a base material, referring to the attached Figure 1 , comprises a gypsum fiber plate base material 1, a decorative layer 2, a wear-resistant layer 3 and a balance layer 4.

[0039] The thickness of the gypsum fiber plate base material 1 is 8.8 mm.

[0040] The wear-resistant layer is formed by one layer of wear-resistant paper impregnated with modified melamine resin containing aluminum oxide particles, and the thickness is 0.2 mm, and the content of aluminum oxide is 38 g / m 2 .

[0041] The decorative layer is composed of three layers of melamine impregnated adhesive film paper and kraft paper. The thickness of the decorative layer is 0.6 mm.

[0042] The balance layer is composed of three layers of melamine impregnated adhesive film paper and kraft paper. The thickness of the decorative layer is 0.6 mm.

[0043] The thickness of the assembly type reinforced floor is 10.0 mm.

[0044] The decorative layer, the balance layer and the base material are hot-pressed and bonded, the hot-pressing temperature is 75 DEG C, the hot-pressing time is 30 min, and the pressure of the hot-pressing and bonding is 3.5 MPa. The two-component polyurethane glue is used for bonding the decorative layer, the balance layer and the base material, and the glue application amount is 200 g / m 2 . ​

[0045] Example 2

[0046] A kind of gypsum fiberboard as base material of assembly type reinforced floor, refer to attached Figure 1 , including gypsum fiberboard base material 1, decorative layer 2, wear-resistant layer 3, balance layer 4.

[0047] The thickness of the gypsum fiberboard base material 1 is 14.3 mm.

[0048] The wear-resistant layer is formed by a layer of wear-resistant paper impregnated with modified melamine resin containing aluminum oxide particles, with a thickness of 0.2 mm, and the content of aluminum oxide is 45 g / m 2

[0049] The decorative layer is composed of a layer of melamine impregnated film paper and a layer of non-woven paper. The thickness of the decorative layer is 0.25 mm.

[0050] The balance layer is composed of a layer of melamine impregnated film paper and a layer of non-woven paper. The thickness of the decorative layer is 0.25 mm.

[0051] The thickness of the assembly type reinforced floor is 15 mm.

[0052] The decorative layer, balance layer and base material are hot-pressed together, with a hot-pressing temperature of 75℃, a hot-pressing time of 30 min, and a hot-pressing pressure of 3.5 MPa. The decorative layer, balance layer and base material are bonded together using two-component polyurethane adhesive, with an adhesive application amount of 200 g / m 2 .

[0053] Example 3

[0054] A kind of gypsum fiberboard as base material of assembly type reinforced floor, refer to attached Figure 2 The floor is connected by locking and splicing, and can be installed without glue by using the connection method of rabbet and tongue and groove.

[0055] The performance of the assembly type reinforced floor prepared in Example 1 and Example 2 was detected, and the results are shown in Table 1.

[0056] Table 1: Index parameters of assembly type reinforced floor produced according to Examples 1 and 2

[0057]

[0058]

Claims

1. A dry assembled flooring using a gypsum fiberboard as a base material, characterized by, The balancing layer, the gypsum fiberboard substrate layer, the decorative layer and the wear-resistant layer are sequentially contacted; The gypsum fiberboard substrate layer comprises a gypsum substrate and plant fibers distributed in the gypsum substrate; the diameter of the plant fibers is 0.5-40 μm; and the length of the plant fibers is 0.1-3 mm; The thickness of the balancing layer is 0.1-1.0 mm, the thickness of the gypsum fiberboard substrate layer is 6-20 mm, the thickness of the decorative layer is 0.1-1.0 mm, and the thickness of the wear-resistant layer is 0.1-1.0 mm.

2. The gypsum fiber board-based assembled flooring according to claim 1, characterized by, The balancing layer comprises a laminated and attached melamine impregnated adhesive film and a first substrate layer, and the first substrate layer comprises one or more layers of kraft paper, glass fiber cloth or non-woven paper.

3. The gypsum fiber board-based assembled flooring according to claim 2, characterized by, The first substrate layer is in contact with the gypsum fiberboard substrate layer.

4. The gypsum fiber board-based assembly type reinforcing floor according to claim 1, characterized by, The decorative layer comprises a laminated and attached melamine impregnated adhesive film and a second substrate layer, and the second substrate layer comprises one or more layers of kraft paper, glass fiber cloth or non-woven paper.

5. The gypsum fiber board-based assembly type reinforcing floor according to claim 4, characterized by, The second substrate layer is in contact with the gypsum fiberboard substrate layer.

6. The gypsum fiber board-based assembled flooring according to claim 1, wherein The wear-resistant layer comprises a base paper layer and a resin layer, and the resin layer is dispersed with corundum particles with a particle size of 1-50 μm.

7. The gypsum fiber board-based assembled flooring according to claim 1, characterized by, The gypsum fiberboard-based assembly type reinforced floor is a flat buckle type floor or a lock buckle type floor.

8. The gypsum fiber board-based assembled flooring according to claim 1, characterized by, The gypsum fiberboard-based assembly type reinforced floor has a thickness of 6-20 mm.

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