CN106240005B - Low-shrinkage plastic floor - Google Patents

Low-shrinkage plastic floor Download PDF

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Publication number
CN106240005B
CN106240005B CN201610834520.1A CN201610834520A CN106240005B CN 106240005 B CN106240005 B CN 106240005B CN 201610834520 A CN201610834520 A CN 201610834520A CN 106240005 B CN106240005 B CN 106240005B
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layer
base layer
parts
wear
deformation
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CN106240005A (en
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蓝伟光
孙立
田波
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Lan Xiaobing
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Lan Xiaobing
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/10Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/26Polymeric coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554Wear resistance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00Floor coverings
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a low shrinkage plastic floor, which comprises a base layer, an elastic foaming layer, a printing film layer and a wear-resistant layer are sequentially arranged above the base layer, the base layer is provided with shading on one surface contacted with the ground, an anti-deformation layer with low shrinkage rate is arranged in the base layer, and the anti-deformation layer divides the base layer into an upper base layer and a lower base layer. According to the invention, the deformation prevention layer is arranged in the base layer, so that the thermal expansion and cold contraction performances of the whole plastic floor are reduced through the deformation prevention layer, the stability of the plastic floor is enhanced, the structure is simple, the construction is convenient, the local PVC floor can be simply replaced, the plastic floor is not easy to deform, and the service life is long.

Description

Low-shrinkage plastic floor
Technical Field
The invention relates to the field of floors, in particular to a low-shrinkage plastic floor.
Background
The plastic floor is a plastic bottom surface decorative material, and has various designs, light weight, wear resistance, good use function and low price. The plastic floor is classified according to the shape of the floor and can be divided into a block floor and a coiled material floor, wherein the block floor is convenient to transport and spread and is internally provided with a large amount of filler, and has the advantages of low price, smoke end burning resistance, pollution resistance, good wear resistance, easy replacement after damage and the like.
At present, the paving method of the block floor generally adopts adhesive to adhere the bottom plate to the bottom surface or connect the floors by non-setting adhesive, or the floors are connected and paved in a buckling manner. Before paving, complex bottom surface treatment such as self-leveling and waterproof treatment should be carried out. If the adhesive is used, the construction must be carried out by professional personnel, which is time-consuming and labor-consuming, and the phenomena of floor degumming, warping, cracking or arching can occur slightly carelessly, thus affecting the use and the beautiful appearance. Therefore, finding a plastic floor with simple structure, convenient laying and excellent performance is a common goal for industry personnel.
In the filed chinese patent 200910041835.0, the present inventors have proposed a block plastic flooring, which has a weight greater than that of other block plastic flooring by 7kg to 11kg per square meter, and has a ground-contacting surface provided with a ground pattern, so that sliding does not easily occur after laying. The appearance of the blocky plastic floor has profound influence on the laying process, and the blocky plastic floor can be laid on the relatively flat ground without using adhesives, and does not need professional technicians to carry out construction.
The inventors of the present invention filed a PCT application entitled "bulk plastic flooring" at 12/27 of 2010, having application number PCT/CN2010/080324, the PCT application is a further improvement proposal based on Chinese patent 200910041835.0, A PVC anti-slip film is pressed on one surface of the block plastic floor, which is contacted with the ground, and comprises 56% of polyvinyl chloride, 40% of plasticizer DINP, 2.5% of stabilizer and 1.5% of pigment by weight, wherein one surface of the PVC anti-slip film, which is contacted with the ground, is provided with anti-slip patterns. In this PCT application, the design of the slip-resistant film provides a more excellent slip-resistant effect to the bulk plastic flooring.
The PVC floor board is mainly made of PVC, the PVC floor board is greatly affected by temperature, and the repeated expansion and contraction easily cause the increase of gaps between the PVC floor boards, so that the PVC floor board cannot be recovered.
Disclosure of Invention
In view of the above, the invention discloses a low shrinkage plastic floor.
The aim of the invention is achieved by the following technical scheme:
the utility model provides a low shrinkage plastic floor, includes the basic unit, elastic foaming layer, stamp rete and wearing layer have been set gradually to the basic unit top, the one side of basic unit and ground contact is provided with the shading, be provided with the anti-deformation layer of low shrinkage in the basic unit, anti-deformation layer divide into basic unit and lower basic unit with the basic unit.
The deformation-preventing layer is arranged in the base layer, and tension is generated when the base layer expands with heat and contracts with cold through the deformation-preventing layer, so that the shrinkage deformation of the whole plastic floor is reduced, and the stability is enhanced.
Further, the upper surface of the deformation preventing layer is provided with a plurality of upper grooves, and the lower surface of the deformation preventing layer is provided with a plurality of lower grooves.
By arranging the upper groove and the lower groove on the upper surface and the lower surface of the deformation preventing layer, the bottom of the upper base layer can be fused into the upper groove during production, and the upper part of the lower base layer can be fused into the lower groove, so that the tension of the deformation preventing layer to the base layer is enhanced.
Further, the upper groove and the lower groove are respectively in a rectangular array and the projection areas are overlapped, and the upper groove is communicated with the lower groove.
The upper groove and the lower groove of the rectangular array can homogenize the tension of the deformation-preventing layer to the base layer and prevent the local tension from being excessively concentrated, the upper groove is communicated with the lower groove, the upper base layer and the lower base layer can be fused in the production of the plastic floor, so that the base layer and the deformation-preventing layer are better combined together.
Further, the upper grooves and the lower grooves are staggered and arranged in a rectangular array, the upper grooves are communicated with adjacent lower grooves, and the lower grooves are communicated with adjacent upper grooves.
The upper grooves are communicated with the adjacent lower grooves, and the lower grooves are communicated with the adjacent upper grooves, so that the fusion degree between the upper base layer and the lower base layer can be better enhanced, and the deformation-preventing layer can be better fused into the base layer.
Further, the thickness ratio of the base layer to the elastic foaming layer is 3:1.
The PVC floor mainly depends on the basic form of the basic unit determination, the hardness of the basic unit is higher than that of the elastic foaming layer, the elastic foaming layer is arranged to strengthen the buffering capacity of the PVC floor, meanwhile, due to the fact that the hardness of the wear-resisting layer is higher, the elastic foaming layer is arranged between the wear-resisting layer and the basic unit to strengthen the bonding strength of the wear-resisting layer, and the bending resistance of the PVC floor is enhanced. The thickness ratio of the base layer to the elastic foaming layer is 3:1, so that the shape, bending resistance and bonding strength of the wear-resistant layer of the PVC floor can be well ensured.
Furthermore, the wear-resisting layer is made of PVC, the thickness of the wear-resisting layer is 0.55mm-1mm, and the surface of the wear-resisting layer is also provided with a UV layer.
The service life of the PVC floor mainly depends on the thickness of the wear-resistant layer, the wear-resistant layer with the thickness of 0.55mm can be used for more than 5 years under normal conditions, the wear-resistant layer with the thickness of 1mm can be used for about 20 years under normal conditions, the service life of the base layer and the elastic foaming layer of the PVC floor per se, such as deterioration or elastic failure, and the cost for producing the PVC floor are considered, the wear-resistant layer with the thickness of 0.55-1 mm can meet good service requirements, the surface of the wear-resistant layer is subjected to UV treatment to strengthen the surface hardness of the wear-resistant layer, and the wear resistance of the PVC floor is enhanced.
Further, the UV layer comprises, by weight, 45-55 parts of aliphatic polyurethane acrylic ester, 5-9 parts of aromatic polyurethane acrylic ester, 5-8 parts of reactive diluent, 1-4 parts of photoinitiator, 50-60 parts of solvent and 0.5-0.9 part of auxiliary agent; the auxiliary agent comprises 10% of diethanolamine, 6% of isopropyl titanate, 2% of ferric sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight.
Aromatic polyurethane acrylic ester: the aromatic polyurethane acrylic ester has urethane bond in the molecule, can form and hydrogen bond in the middle of the high molecular bond, and the oligomer has excellent wear resistance and flexibility, good resistance to chemicals, high and low temperature resistance, good impact resistance and good adhesive force to a substrate. The aromatic polyurethane acrylate used in the invention has higher mechanical strength, hardness and heat resistance, and low price is the first choice of UV coating. Aliphatic urethane acrylate: the paint is not easy to turn yellow, has light resistance, good weather resistance, low viscosity and good impact resistance. Photoinitiators are classified into cleavage type photoinitiators and hydrogen abstraction type photoinitiators, and are sometimes used with other auxiliary components such as photosensitizers and sensitizers, and function to initiate polymerization by allowing the molecule/photosensitizer to absorb light energy to migrate to an excited state during a broad curing process, and allowing the photoinitiator to transition from a ground state to an excited state after absorbing energy by energy transfer to the photoinitiator, resulting in a chemical change, resulting in an active intermediate. The solvent can be realized by any one of the prior art. Diethanolamine Chinese name 2,2' -dihydroxydiethylamine, diethanolamine; bis-hydroxyethyl amine; 2,2' -iminodiethanol: the English abbreviation DEA can be realized by the prior art. Isopropyl titanate (English name: titanium tetraisopropanolate) is called tetraisopropyl titanate and tetraisopropoxytitanium. The catalyst mainly used for transesterification and condensation reactions in organic synthesis can be realized by any commercial product. The ferric sulfate can be realized by any one of commercial products. Schiff base english name: schiff base is also called Schiff base and mainly refers to organic compounds containing imine or azomethine characteristic groups (-RC=N-) and is usually formed by condensing amine and active carbonyl, and the Schiff base can be realized by any one of the prior art. Polydimethylsiloxane (Polydimethylsiloxane), also known as dimethicone, is a hydrophobic type of silicone material. The polysiloxane has application in various fields of medicines, daily chemicals, foods, buildings and the like, the derivatives of the polysiloxane are hundreds, and the common polysiloxanes mainly comprise: polydimethylsiloxanes, cyclomethylsiloxanes, aminosilicones, polymethylphenylsiloxanes, polyether polysiloxane copolymers. Among them, cyclomethicone is one of the commonly used polysiloxanes. In the invention, any one of the prior art can be selected for implementation. Through verification of a designer, a proper amount of diethanolamine and isopropyl titanate can enable the UV layer to have recoatability and enable the recoated coating to have adhesiveness, when the UV layer of the floor is damaged, the floor is not required to be replaced, the UV layer can be directly recoated, and the service life of the floor can be effectively prolonged. In addition, the hardness of the UV layer can be effectively improved by the ferric sulfate and the Schiff base, so that the UV layer has higher wear resistance.
Further, the reactive diluent is tripropylene glycol diacrylate; the photoinitiator is 1-hydroxy-cyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2,4, 6-trimethylbenzoyl diphenyl phosphine oxide; the mixed solvent comprises ketone and alcohol ether, wherein the ketone is one or more of acetone, butanone, methyl-n-amyl ketone and methyl-isovaleryl ketone, and the alcohol ether is one or two of ethylene glycol methyl ether and ethylene glycol ethyl ether.
Preferably, the UV layer further comprises 0.5-1.5 parts of flatting agent and 0.8-1.8 parts of defoaming agent by weight.
The leveling agent and the defoaming agent can be realized by any one of the prior art.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater, and forming the UV layer at a speed of 110-180 mW/cm 2 And (3) irradiating the coating for 80-150 s to cure the coating to obtain the coating.
The invention has the beneficial effects that:
according to the invention, the deformation prevention layer is arranged in the base layer, so that the thermal expansion and cold contraction performances of the whole plastic floor are reduced through the deformation prevention layer, the stability of the plastic floor is enhanced, the structure is simple, the construction is convenient, the local PVC floor can be simply replaced, the plastic floor is not easy to deform, and the service life is long.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the deformation preventing layer according to embodiment 2 of the present invention.
FIG. 3 is a schematic view showing the mechanism of the deformation preventing layer according to embodiment 3 of the present invention.
FIG. 4 is a schematic view of the mechanism of the deformation preventing layer according to embodiment 4 of the present invention.
Detailed Description
For the convenience of understanding by those skilled in the art, the present invention will be described in further detail with reference to the following examples:
example 1
This embodiment provides a low shrinkage plastic flooring, as shown in figure 1,
the anti-deformation foam plastic floor comprises a base layer, wherein an elastic foam layer 3, a printing film layer 4 and a wear-resistant layer 5 are sequentially arranged above the base layer, a ground contact surface of the base layer is provided with shading, an anti-deformation layer 2 with low shrinkage rate is arranged in the base layer, and the anti-deformation layer divides the base layer into an upper base layer 11 and a lower base layer 12.
The thickness ratio of the base layer to the elastic foaming 3 layers is 3:1.
The wear-resisting layer 5 is made of PVC, the thickness of the wear-resisting layer is 0.55mm-1mm, and the surface of the wear-resisting layer 5 is also provided with a UV layer 6.
Example 2
The present embodiment provides a low shrinkage plastic flooring, as shown in figures 1-2,
the anti-deformation foam plastic floor comprises a base layer, wherein an elastic foam layer 3, a printing film layer 4 and a wear-resistant layer 5 are sequentially arranged above the base layer, a ground contact surface of the base layer is provided with shading, an anti-deformation layer 2 with low shrinkage rate is arranged in the base layer, and the anti-deformation layer divides the base layer into an upper base layer 11 and a lower base layer 12.
The upper surface of the deformation preventing layer 2 is provided with a plurality of upper grooves 21, and the lower surface of the deformation preventing layer 2 is provided with a plurality of lower grooves 22.
The thickness ratio of the base layer to the elastic foaming 3 layers is 3:1.
The wear-resisting layer 5 is made of PVC, the thickness of the wear-resisting layer is 0.55mm-1mm, and the surface of the wear-resisting layer 5 is also provided with a UV layer 6.
Example 3
The present embodiment provides a low shrinkage plastic flooring, as shown in figures 1-2,
the anti-deformation foam plastic floor comprises a base layer, wherein an elastic foam layer 3, a printing film layer 4 and a wear-resistant layer 5 are sequentially arranged above the base layer, a ground contact surface of the base layer is provided with shading, an anti-deformation layer 2 with low shrinkage rate is arranged in the base layer, and the anti-deformation layer divides the base layer into an upper base layer 11 and a lower base layer 12.
The upper surface of the deformation preventing layer 2 is provided with a plurality of upper grooves 21, and the lower surface of the deformation preventing layer 2 is provided with a plurality of lower grooves 22.
The upper groove 21 and the lower groove 22 are respectively in rectangular arrays and the projection areas are coincident, and the upper groove 21 is communicated with the lower groove 22.
The thickness ratio of the base layer to the elastic foaming 3 layers is 3:1.
The wear-resisting layer 5 is made of PVC, the thickness of the wear-resisting layer is 0.55mm-1mm, and the surface of the wear-resisting layer 5 is also provided with a UV layer 6.
Example 4
The present embodiment provides a low shrinkage plastic flooring, as shown in figures 1-2,
the anti-deformation foam plastic floor comprises a base layer, wherein an elastic foam layer 3, a printing film layer 4 and a wear-resistant layer 5 are sequentially arranged above the base layer, a ground contact surface of the base layer is provided with shading, an anti-deformation layer 2 with low shrinkage rate is arranged in the base layer, and the anti-deformation layer divides the base layer into an upper base layer 11 and a lower base layer 12.
The upper surface of the deformation preventing layer 2 is provided with a plurality of upper grooves 21, and the lower surface of the deformation preventing layer 2 is provided with a plurality of lower grooves 22.
The upper grooves 21 and the lower grooves 22 are staggered and are in a rectangular array, the upper grooves 21 are communicated with the adjacent lower grooves 22, and the lower grooves 22 are communicated with the adjacent upper grooves 21.
The thickness ratio of the base layer to the elastic foaming 3 layers is 3:1.
The wear-resisting layer 5 is made of PVC, the thickness of the wear-resisting layer is 0.55mm-1mm, and the surface of the wear-resisting layer 5 is also provided with a UV layer 6.
Example 5
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. In particular, the UV layer in this embodiment comprises, by weight, 50 parts of aliphatic urethane acrylate (gesta 306), 7 parts of aromatic urethane acrylate (eubiex EB 205), 6 parts of reactive diluent (eubiex EB 1110), 2 parts of photoinitiator (steam refinement 184), 54 parts of solvent, and 0.8 part of auxiliary agent; the auxiliary agent comprises 10% of diethanolamine, 6% of isopropyl titanate, 2% of ferric sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight.
The mixed solvent comprises acetone and ethylene glycol methyl ether, and the acetone and the ethylene glycol methyl ether are mixed according to the mass ratio of 1:1.
Further, the UV layer also comprises 0.9 part of flatting agent (Bayer BYK-3500) and 1.5 parts of defoaming agent (pretty 2700) by weight.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater at a speed of 140mW/cm 2 And (3) irradiating for 100s to cure the coating to obtain the coating.
Example 6
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. Particularly, the raw materials of the UV layer in the embodiment comprise 55 parts of aliphatic polyurethane acrylic ester, 5 parts of aromatic polyurethane acrylic ester, 8 parts of reactive diluent, 1 part of photoinitiator, 60 parts of solvent and 0.5 part of auxiliary agent by weight; the auxiliary agent comprises 10% of diethanolamine, 6% of isopropyl titanate, 2% of ferric sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight.
Further, the reactive diluent is tripropylene glycol diacrylate (PPGTA of basf is selected in the embodiment); the photoinitiator is 16992 of the America Dow; the mixed solvent is prepared by mixing butanone and ethylene glycol diethyl ether according to the mass ratio of 1:2.
Further, the UV layer comprises 1.5 parts of flatting agent and 0.8 parts of defoaming agent by weight.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater, and forming the UV layer at 180mW/cm 2 And (3) irradiating for 80s to cure the coating to obtain the coating.
Example 7
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. In particular, the raw materials of the UV layer in the embodiment comprise 45 parts of aliphatic polyurethane acrylic ester, 9 parts of aromatic polyurethane acrylic ester, 5 parts of reactive diluent, 4 parts of photoinitiator, 50 parts of solvent and 0.9 part of auxiliary agent by weight; the auxiliary agent comprises 10% of diethanolamine, 6% of isopropyl titanate, 2% of ferric sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight.
Further, the reactive diluent is tripropylene glycol diacrylate
Comparative example 8
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. Particularly, the raw materials of the UV layer in the embodiment comprise 55 parts of aliphatic polyurethane acrylic ester, 5 parts of aromatic polyurethane acrylic ester, 8 parts of reactive diluent, 1 part of photoinitiator, 60 parts of solvent and 0.5 part of auxiliary agent by weight; the auxiliary agent comprises 10% of triethanolamine, 6% of isopropyl titanate, 2% of ferrous sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight.
Further, the reactive diluent is tripropylene glycol diacrylate (PPGTA of basf is selected in the embodiment); the photoinitiator is 16992 of the America Dow; the mixed solvent is prepared by mixing butanone and ethylene glycol diethyl ether according to the mass ratio of 1:2.
Further, the UV layer comprises 1.5 parts of flatting agent and 0.8 parts of defoaming agent by weight.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater, and forming the UV layer at 180mW/cm 2 And (3) irradiating for 80s to cure the coating to obtain the coating.
Example 9
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. Particularly, the raw materials of the UV layer in the embodiment comprise 55 parts of aliphatic polyurethane acrylic ester, 5 parts of aromatic polyurethane acrylic ester, 8 parts of reactive diluent, 1 part of photoinitiator, 60 parts of solvent and 0.5 part of auxiliary agent by weight; the auxiliary agent contains 10% by weight of diethanolamine, 2% of ferric sulfate and the balance of polydimethylsiloxane.
Further, the reactive diluent is tripropylene glycol diacrylate (PPGTA of basf is selected in the embodiment); the photoinitiator is 16992 of the America Dow; the mixed solvent is prepared by mixing butanone and ethylene glycol diethyl ether according to the mass ratio of 1:2.
Further, the UV layer comprises 1.5 parts of flatting agent and 0.8 parts of defoaming agent by weight.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater, and forming the UV layer at 180mW/cm 2 And (3) irradiating for 80s to cure the coating to obtain the coating.
Example 10
The present embodiment provides a low shrinkage plastic flooring, which has the same structure as that of embodiment 1. In particular, the raw materials of the UV layer in the embodiment comprise 55 parts of aliphatic polyurethane acrylate, 5 parts of aromatic polyurethane acrylate, 8 parts of reactive diluent, 1 part of photoinitiator and 60 parts of solvent by weight.
Further, the reactive diluent is tripropylene glycol diacrylate (PPGTA of basf is selected in the embodiment); the photoinitiator is 16992 of the America Dow; the mixed solvent is prepared by mixing butanone and ethylene glycol diethyl ether according to the mass ratio of 1:2.
Further, the UV layer comprises 1.5 parts of flatting agent and 0.8 parts of defoaming agent by weight.
Preferably, the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the wear-resistant layer by using a bar coater, and forming the UV layer at 180mW/cm 2 And (3) irradiating for 80s to cure the coating to obtain the coating.
And (3) re-coating the surface of the UV layer to obtain a re-coated layer, and testing the performance of the re-coated layer. The results are shown in the following table.
The foregoing is a description of specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention, and that these obvious alternatives fall within the scope of the invention.

Claims (2)

1. A low shrinkage plastic floor, characterized in that: the anti-deformation floor comprises a base layer, wherein an elastic foaming layer, a printing film layer and a wear-resistant layer are sequentially arranged above the base layer, the surface of the base layer, which is in contact with the ground, is provided with a shading layer with low shrinkage rate, and the base layer is divided into an upper base layer and a lower base layer by the anti-deformation layer;
the upper surface of the deformation preventing layer is provided with a plurality of upper grooves, and the lower surface of the deformation preventing layer is provided with a plurality of lower grooves;
the upper groove and the lower groove are respectively in a rectangular array and the projection areas are coincident, and the upper groove is communicated with the lower groove; or the upper grooves and the lower grooves are staggered and are in a rectangular array, the upper grooves are communicated with the adjacent lower grooves, and the lower grooves are communicated with the adjacent upper grooves;
the thickness ratio of the base layer to the elastic foaming layer is 3:1;
the wear-resistant layer is made of PVC, the thickness of the wear-resistant layer is 0.55mm-1mm, and the surface of the wear-resistant layer is also provided with a UV layer;
the UV layer comprises, by weight, 45-55 parts of aliphatic polyurethane acrylic ester, 5-9 parts of aromatic polyurethane acrylic ester, 5-8 parts of reactive diluent, 1-4 parts of photoinitiator, 50-60 parts of solvent and 0.5-0.9 part of auxiliary agent; the auxiliary agent comprises 10% of diethanolamine, 6% of isopropyl titanate, 2% of ferric sulfate, 20% of Schiff base and the balance of polydimethylsiloxane by weight;
the reactive diluent is tripropylene glycol diacrylate; the photoinitiator is 1-hydroxy-cyclohexyl phenyl ketone, 2-hydroxy-2 methyl-1 phenyl-1 acetone or 2,4, 6-trimethyl benzoyl diphenyl phosphine oxide; the solvent comprises ketone and alcohol ether, wherein the ketone is one or more of acetone, butanone, methyl-n-amyl ketone and methyl-isoprene ketone, and the alcohol ether is one or two of ethylene glycol methyl ether and ethylene glycol ethyl ether;
the UV layer also comprises 0.5-1.5 parts by weight of flatting agent and 0.8-1.8 parts by weight of defoaming agent.
2. The low shrinkage plastic flooring of claim 1, wherein the UV layer is formed by uniformly mixing the raw materials, uniformly coating the raw materials on the abrasion-resistant layer by using a bar coater at a ratio of 110-180 mW/cm 2 And (3) irradiating the coating for 80-150 s to cure the coating to obtain the coating.
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