CN105781061A - Novel environment-friendly waterproof wood sandwich floor - Google Patents

Novel environment-friendly waterproof wood sandwich floor Download PDF

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Publication number
CN105781061A
CN105781061A CN201410782473.1A CN201410782473A CN105781061A CN 105781061 A CN105781061 A CN 105781061A CN 201410782473 A CN201410782473 A CN 201410782473A CN 105781061 A CN105781061 A CN 105781061A
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CN
China
Prior art keywords
layer
floor
board
sandwich
novel environment
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CN201410782473.1A
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Chinese (zh)
Inventor
李新雄
张冬明
张萍
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湖南邦弗特新材料技术有限公司
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Priority to CN201410782473.1A priority Critical patent/CN105781061A/en
Publication of CN105781061A publication Critical patent/CN105781061A/en

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Abstract

The invention discloses a novel environment-friendly waterproof wood sandwich floor, which comprises a surface layer, a core layer and a ground layer; the surface layer and the ground layer are made from wood; the thickness h1 of the surface layer is no less than 0.6mm; and the thickness h3 of the ground layer is no less than 2mm. The surface layer can be coated with a paint or has a wearing layer or a decorative layer that is coated with a UV paint; the edge of the surface layer has a V-shaped or a U-shaped chamfering. The core layer is a fiber cement board, a calcium silicate board, a magnesium silicate board, an alumina silicate board, a composite silicate board, a glass magnesium board coated with a cement-based capillary crystalline waterproofing coating, or a cement board, a calcium silicate board, a magnesium silicate board, an alumina silicate board, a composite silicate board, a glass magnesium board coated with a cement-based capillary crystalline waterproofing agent, and the swelling rate is lower than 2.5%. The wood sandwich floor has the advantages of simple structure, high modulus of rupture, high internal bonding strength, high connection stability, low formaldehyde release amount, and good waterproof performance; the wood sandwich floor is solid and stable, and is beneficial for environment protection and user's health; the wood sandwich floor can effectively solve the problems like floor deformation and arching because the floor absorbs water and expands thereafter.

Description

A kind of novel environment friendly waterproof wooden sandwich floor

Technical field

The present invention relates to a kind of Environmental-friendconstruction construction decoration material, particularly relate to a kind of novel environment friendly waterproof wooden sandwich floor.

Background technology

Along with natural timber resource reduces day by day, in order to reduce the consumption of timber resources, increasing enterprise adopts solid wood to prepare into novel composite floor board with other base material compounds.Solid wood and other base materials novel composite floor board that is composited can experience the feel of solid wooden floor board, reduces the consumption of timber simultaneously.In multi-layer composite floor, generally formed by adhesive is bonding by multilayer single plate.And the present adhesive used by multilayer environment protecting new waterproof wooden sandwich floor contains formaldehyde mostly, environmental pollution is serious；And the thickness swelling rate of the timber of general solid wooden compound floor is high, and conditioned time is long, and the resistance to water function of waterproof is poor, it is easy to seep water and can easily occur arch camber to deform in floor after infiltration.

Summary of the invention

The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of simple in construction, solid attractive in appearance, without conditioned time, environmental-protecting performance is good, and burst size of methanal is low, water resistance is good, and infiltration is not result in the novel environment friendly waterproof wooden sandwich floor of deformation, arch camber.

For solving above-mentioned technical problem, the present invention by the following technical solutions:

A kind of novel environment friendly waterproof wooden sandwich floor, including surface layer, sandwich layer, bottom three layers, described surface layer and bottom are solid wood base material, and surface layer is provided with wearing layer or the decorative layer of at least one of which coating UV coating, and the bulking factor of described sandwich layer is less than or equal to 2.5%.

Further improvement as above technical scheme:

Described surface layer uses material to be the one in oak, walnut wood, cherry, Cortex Fraxini mandshuricae, birch, maple wood, Chinese catalpa wood, Tectona grandis L. F., Entandrophragma cylindricum Sprague, sandwich layer uses material to be the one in cement-based material, modified cement sill, calcium silicate board, magnesium silicate plate, silicate aluminum board, compound silicate board, glass magnesium board, fibre reinforced composites, waterproof material, and bottom uses material to be the one in poplar, Masson Pine, birch.

Described sandwich layer is scribble the fiber cement board of cement based penetration crystallization type water proofing paint or calcium silicate board, magnesium silicate plate, silicate aluminum board, compound silicate board, glass magnesium board or mixed with the fiber cement board of cementitious capillary crystalline waterproofing agent or calcium silicate board, magnesium silicate plate, silicate aluminum board, compound silicate board, glass magnesium board.

V-type or U-shaped chamfering it is provided with at the edge of described surface layer.

Thickness h 3 >=the 0.6mm of described surface layer, the thickness h 3 >=2mm of bottom.

Preferably, the thickness of described surface layer is the one in 0.6mm, 1.2mm, 2.0mm, 3.0mm, and the thickness of bottom (3) is 2mm.

Between described surface layer and sandwich layer and between sandwich layer and bottom glued each through environment-protective adhesive, described environment-protective adhesive is PUR adhesive.

Four sides all offer can mutually fasten snap close, tongue and groove, a kind of or combination of any two kinds in them in hasp, described snap close is male locking device or locking device and a female, described tongue and groove is the tongue and groove or recessed tongue and groove that protrude, and described hasp is hasp upwards or downward hasp.

At described four sides coating waterproof material, being coated with damp-proof membrane or waterproof material on described bottom, described waterproof material can be the one in water-repellent paint, waterproof wax, waterproofing agent, dubbin.

Described water-repellent paint is aqueous polyurethane water-repellent paint or UV solidification water-repellent paint, and dubbin can be Waterproof mildew-resistant wood wax oil.

Compared with prior art, it is an advantage of the current invention that:

Present configuration is simple, reasonable in design, adopt the UV coating designed for it specially that central layer is processed, after roller coat UV permeates the end successively, UV solidifies, UV putty UV solidifies, UV at the bottom of UV sanding solidifies, can keep possessing good attachment with central layer base material, UV deep layer dries, the performances such as resistance to water, simultaneously between surface layer and sandwich layer, environmental protection PUR adhesive is adopted to carry out bonding between sandwich layer with bottom, the burst size of formaldehyde requires (see table one) significantly lower than the E0 level of solid wooden compound floor, substantially only timber itself discharges minimal amount of formaldehyde, meet the requirement of environmental conservation, healthy without compromising on user.

In the present invention, the particular design of UV formulation for coating material and PUR adhesive are quickly arranged in pairs or groups use, achieve high efficiency between sandwich layer with surface layer, sandwich layer and bottom on the one hand bonding, improve the make efficiency on floor, greatly strengthen the adhesive strength between flaggy on the other hand, thus enhancing the MOR on floor and interior bonding strength, floor processes without being balanced health preserving again, with short production cycle.The material of this unique design, process solve central layer affects the problem of adhesive strength because of dust, makes two kinds of different qualities materials realize quick, stable, reliably bonding.

In the present invention, adopt the UV coating designed for it specially that sandwich layer is carried out advanced treating, sandwich layer is made to have good water resistance, in addition sandwich layer adopts bulking factor≤2.5% of base material itself, again through the PUR adhesive and solid wood base material surface layer and the bottom gluing that adopt water-tolerant, final horizontal thickness swelling rate is minimum, reach the index of thickness swelling rate≤2.5% of the high-class product of consolidated floor, can effectively reduce the horizontal thickness swelling rate (see table one) on floor, therefore, it is possible to solve the floor deformation that floor causes because of imbibition well, the problems such as arch camber.It addition, the present invention adopts waterproof material four sides and the upper and lower surface on floor have been carried out comprehensive water-proofing treatment, floor is made to be truly realized waterproof without dead angle, it is possible to be applied to all moistening places.

Table 1 is the parameter lookup table of national standard performance parameter and each embodiment.

Table 1

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of the embodiment of the present invention 1；

Fig. 2 is the cross-sectional view of the embodiment of the present invention 2；

Fig. 3 is the cross-sectional view of the embodiment of the present invention 3；

Fig. 4 is the cross-sectional view of the embodiment of the present invention 4；

In figure, each label represents:

1, surface layer；2, sandwich layer；3, bottom；4, chamfering；11, snap close；22, tongue and groove；33, hasp；111, male locking device；112, locking device and a female；221, public tongue and groove；222, female tongue and groove；331, public hasp；332, female hasp.

Detailed description of the invention

Below with reference to the drawings and specific embodiments, the present invention is described in further detail.

Embodiment 1

Fig. 1 illustrates a kind of novel environment friendly waterproof wooden sandwich floor embodiment of the present invention, including surface layer 1, sandwich layer 2, bottom 3 three layers, it is adhesive layer between surface layer 1 and sandwich layer 2 and between sandwich layer 2 and bottom 3, surface layer 1 and bottom 3 are solid wood base material, in the present embodiment, it is the walnut wood of 0.6mm that surface layer 1 uses material to be thickness h 1, it is the birch of 2mm that bottom 3 uses material to be thickness h 3, sandwich layer 2 is the cement fibrolite plate scribbling cementitious capillary crystalline waterproofing agent, thickness h 2 is 6mm, surface layer 1 is provided with the wear-resisting decorative layer of one layer of coating UV coating, play the effect of abrasion resistance and the aesthetics strengthening floor.

In the present embodiment, adopt the UV coating designed for it specially that central layer 2 is processed, after roller coat UV permeates the end successively, UV solidifies, UV putty UV solidifies, UV at the bottom of UV sanding solidifies, can keep possessing good attachment with central layer 2 base material, UV deep layer dries, the performances such as resistance to water, simultaneously between surface layer 1 and sandwich layer 2, environmental protection PUR adhesive is adopted to carry out bonding between sandwich layer 2 with bottom 3, the burst size of formaldehyde is significantly lower than the E0 level requirement of solid wooden compound floor, substantially only timber itself discharges minimal amount of formaldehyde, it is only 0.10mg/L, meet the requirement of environmental conservation GB/T17657-2013, healthy without compromising on user.Additionally, in the present embodiment, the particular design of UV formulation for coating material and PUR adhesive are quickly arranged in pairs or groups use, achieve high efficiency between sandwich layer 2 with surface layer 1, sandwich layer 2 and bottom 3 on the one hand bonding, improve the make efficiency on floor, greatly strengthen the adhesive strength between flaggy on the other hand, thus enhancing the MOR on floor and interior bonding strength, floor processes without being balanced health preserving again, with short production cycle.The material of this unique design, process solve central layer affects the problem of adhesive strength because of dust, makes two kinds of different qualities materials realize quick, stable, reliably bonding.

In the present embodiment, as it is shown in figure 1, be provided with V-type chamfering 4 at the edge of surface layer 1, reduce the sharpness at floor covering 1 edge, it is prevented that the personnel of installing and using are damaged, and reduce the infringement of intralaminar part organizational structure over the ground.All offering, in side, four, floor, the snap close 11 that can mutually fasten, this snap close 11 is divided into male locking device 111 and locking device and a female 112, collectively forms an entirety by snap close 11 button, enhance the connective stability that floor is overall simultaneously between each floor unit.

In the present embodiment, sandwich layer 2 is carried out advanced treating by adopted UV coating, sandwich layer 2 is made to have good water resistance, in addition sandwich layer 2 adopts bulking factor≤2.5% of base material itself, again through the environmental protection PUR adhesive and surface layer 1 and bottom 3 gluing that adopt water-tolerant, the horizontal thickness swelling rate making floor is minimum, reach the index of thickness swelling rate≤2.5% of the high-class product of consolidated floor, and it is coated with aqueous polyurethane water-repellent paint in side, four, floor, bottom 3 is coated with damp-proof membrane, floor is made to be truly realized waterproof without dead angle, can apply to all moistening fields, arch camber deformation is there is after can effectively preventing floor infiltration.

Embodiment 2

Fig. 2 illustrates a kind of novel environment friendly waterproof wooden sandwich floor embodiment 2 of the present invention, including surface layer 1, sandwich layer 2, bottom 3 three layers, it is adhesive layer between surface layer 1 and sandwich layer 2 and between sandwich layer 2 and bottom 3, surface layer 1 and bottom 3 are solid wood base material, in the present embodiment, it is the Manchurian ash wood of 1.2mm that surface layer 1 uses material to be thickness h 1, it is the walnut wood of 2mm that bottom 3 uses material to be thickness h 3, sandwich layer 2 is the cement fibrolite plate scribbling cementitious capillary crystalline waterproofing agent, thickness h 2 is 6mm, surface layer 1 is provided with the wear-resisting decorative layer of one layer of coating UV coating, play the effect of abrasion resistance and the aesthetics strengthening floor.

In the present embodiment, adopt the UV coating designed for it specially that central layer 2 is processed, after roller coat UV permeates the end successively, UV solidifies, UV putty UV solidifies, UV at the bottom of UV sanding solidifies, can keep possessing good attachment with central layer 2 base material, UV deep layer dries, the performances such as resistance to water, simultaneously between surface layer 1 and sandwich layer 2, environmental protection PUR adhesive is adopted to carry out bonding between sandwich layer 2 with bottom 3, the burst size of formaldehyde is significantly lower than the E0 level requirement of solid wooden compound floor, substantially only timber itself discharges minimal amount of formaldehyde, it is only 0.11mg/L, meet the requirement of environmental conservation GB/T17657-2013, healthy without compromising on user.Additionally, in the present embodiment, the particular design of UV formulation for coating material and PUR adhesive are quickly arranged in pairs or groups use, achieve high efficiency between sandwich layer 2 with surface layer 1, sandwich layer 2 and bottom 3 on the one hand bonding, improve the make efficiency on floor, greatly strengthen the adhesive strength between flaggy on the other hand, thus enhancing the MOR on floor and interior bonding strength, floor processes without being balanced health preserving again, with short production cycle.The material of this unique design, process solve central layer affects the problem of adhesive strength because of dust, makes two kinds of different qualities materials realize quick, stable, reliably bonding.

In the present embodiment, as in figure 2 it is shown, be provided with V-type chamfering 4 at the edge of surface layer 1, reduce the sharpness at floor covering 1 edge, it is prevented that the personnel of installing and using are damaged, and reduce the infringement of intralaminar part organizational structure over the ground.The tongue and groove 22 that can mutually fasten all is offered in side, four, floor, this tongue and groove 22 is divided into the tongue and groove 221 of protrusion and recessed tongue and groove 222, collectively form an entirety by tongue and groove 22 button between each floor unit, enhance the connective stability that floor is overall simultaneously.

In the present embodiment, sandwich layer 2 is carried out advanced treating by adopted UV coating, sandwich layer 2 is made to have good water resistance, in addition sandwich layer 2 adopts bulking factor≤2.5% of base material itself, again through the environmental protection PUR adhesive and surface layer 1 and bottom 3 gluing that adopt water-tolerant, the horizontal thickness swelling rate making floor is minimum, reach the index of thickness swelling rate≤2.5% of the high-class product of consolidated floor, and it is coated with aqueous polyurethane water-repellent paint in side, four, floor, bottom 3 is coated with damp-proof membrane, floor is made to be truly realized waterproof without dead angle, can apply to all moistening places, arch camber deformation is there is after can effectively preventing floor infiltration.

Embodiment 3

Fig. 3 illustrates a kind of novel environment friendly waterproof wooden sandwich floor embodiment 3 of the present invention, including surface layer 1, sandwich layer 2, bottom 3 three layers, it is adhesive layer between surface layer 1 and sandwich layer 2 and between sandwich layer 2 and bottom 3, surface layer 1 and bottom 3 are solid wood base material, in the present embodiment, it is the Manchurian ash wood of 2mm that surface layer 1 uses material to be thickness h 1, it is the walnut wood of 2mm that bottom 3 uses material to be thickness h 3, sandwich layer 2 is the cement fibrolite plate scribbling cementitious capillary crystalline waterproofing agent, thickness h 2 is 6mm, surface layer 1 is provided with the wear-resisting decorative layer of two-layer coating UV coating, play the effect of abrasion resistance and the aesthetics strengthening floor.

In the present embodiment, adopt the UV coating designed for it specially that central layer 2 is processed, after roller coat UV permeates the end successively, UV solidifies, UV putty UV solidifies, UV at the bottom of UV sanding solidifies, can keep possessing good attachment with central layer 2 base material, UV deep layer dries, the performances such as resistance to water, simultaneously between surface layer 1 and sandwich layer 2, environmental protection PUR adhesive is adopted to carry out bonding between sandwich layer 2 with bottom 3, the burst size of formaldehyde is significantly lower than the E0 level requirement of solid wooden compound floor, substantially only timber itself discharges minimal amount of formaldehyde, it is only 0.10mg/L, meet the requirement of environmental conservation GB/T17657-2013, healthy without compromising on user.Additionally, in the present embodiment, the particular design of UV formulation for coating material and PUR adhesive are quickly arranged in pairs or groups use, achieve high efficiency between sandwich layer 2 with surface layer 1, sandwich layer 2 and bottom 3 on the one hand bonding, improve the make efficiency on floor, greatly strengthen the adhesive strength between flaggy on the other hand, thus enhancing the MOR on floor and interior bonding strength, floor processes without being balanced health preserving again, with short production cycle.The material of this unique design, process solve central layer affects the problem of adhesive strength because of dust, makes two kinds of different qualities materials realize quick, stable, reliably bonding.

In the present embodiment, as it is shown on figure 3, be provided with U-shaped chamfering 4 at the edge of surface layer 1, reduce the sharpness at floor covering 1 edge, it is prevented that the personnel of installing and using are damaged, and reduce the infringement of intralaminar part organizational structure over the ground.The hasp 33 that can mutually fasten all is offered in side, four, floor, this hasp 33 is divided into hasp 331 upwards and downward hasp 332, collectively form an entirety by hasp 33 button between each floor unit, enhance the connective stability that floor is overall simultaneously.

In the present embodiment, adopt UV coating that sandwich layer 2 is carried out advanced treating, sandwich layer 2 is made to have good water resistance, in addition sandwich layer 2 adopts bulking factor≤2.5% of base material itself, again through the environmental protection PUR adhesive and surface layer 1 and bottom 3 gluing that adopt water-tolerant, the horizontal thickness swelling rate making floor is minimum, reach the index of thickness swelling rate≤2.5% of the high-class product of consolidated floor, and it is coated with aqueous polyurethane water-repellent paint in side, four, floor, bottom is coated with damp-proof membrane, floor is made to be truly realized waterproof without dead angle, can apply to all moistening fields, arch camber deformation is there is after can effectively preventing floor infiltration.

Embodiment 4

Fig. 4 illustrates a kind of novel environment friendly waterproof wooden sandwich floor embodiment 4 of the present invention, including surface layer 1, sandwich layer 2, bottom 3 three layers, it is adhesive layer between surface layer 1 and sandwich layer 2 and between sandwich layer 2 and bottom 3, surface layer 1 and bottom 3 are solid wood base material, in the present embodiment, it is the Manchurian ash wood of 3mm that surface layer 1 uses material to be thickness h 1, it is the walnut wood of 2mm that bottom uses material to be thickness h 3, sandwich layer is the cement fibrolite plate scribbling cementitious capillary crystalline waterproofing agent, thickness h 2 is 8mm, surface layer 1 is provided with the wear-resisting decorative layer of one layer of coating UV coating, play the effect of abrasion resistance and the aesthetics strengthening floor.In the present embodiment, it is provided with U-shaped chamfering 4 at the edge of surface layer 1, reduces the sharpness at floor covering 1 edge, it is prevented that the personnel of installing and using are damaged, and reduce the infringement of intralaminar part organizational structure over the ground.

In the present embodiment, adopt the UV coating designed for it specially that central layer 2 is processed, after roller coat UV permeates the end successively, UV solidifies, UV putty UV solidifies, UV at the bottom of UV sanding solidifies, can keep possessing good attachment with central layer 2 base material, UV deep layer dries, the performances such as resistance to water, simultaneously between surface layer 1 and sandwich layer 2, environmental protection PUR adhesive is adopted to carry out bonding between sandwich layer 2 with bottom 3, the burst size of formaldehyde is significantly lower than the E0 level requirement of solid wooden compound floor, substantially only timber itself discharges minimal amount of formaldehyde, it is only 0.11mg/L, meet the requirement of environmental conservation GB/T17657-2013, healthy without compromising on user.Additionally, in the present embodiment, the particular design of UV formulation for coating material and PUR adhesive are quickly arranged in pairs or groups use, achieve high efficiency between sandwich layer 2 with surface layer 1, sandwich layer 2 and bottom 3 on the one hand bonding, improve the make efficiency on floor, greatly strengthen the adhesive strength between flaggy on the other hand, thus enhancing the MOR on floor and interior bonding strength, floor processes without being balanced health preserving again, with short production cycle.The material of this unique design, process solve central layer affects the problem of adhesive strength because of dust, makes two kinds of different qualities materials realize quick, stable, reliably bonding.

In the present embodiment, adopt UV coating that sandwich layer 2 is carried out advanced treating, sandwich layer 2 is made to have good water resistance, in addition sandwich layer 2 adopts bulking factor≤2.5% of base material itself, again through the environmental protection PUR adhesive and surface layer 1 and bottom 3 gluing that adopt water-tolerant, the horizontal thickness swelling rate making floor is minimum, reach the index of thickness swelling rate≤2.5% of the high-class product of consolidated floor, and it is coated with aqueous polyurethane water-repellent paint in side, four, floor, bottom is coated with damp-proof membrane, floor is made to be truly realized waterproof without dead angle, can apply to all moistening fields, arch camber deformation is there is after can effectively preventing floor infiltration.

Above-mentioned simply presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, when without departing from technical solution of the present invention scope, may utilize the technology contents of the disclosure above and technical solution of the present invention are made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.

Claims (10)

1. a novel environment friendly waterproof wooden sandwich floor, it is characterized in that: include surface layer (1), sandwich layer (2), bottom (3) three layers, described surface layer (1) and bottom (3) are solid wood base material, surface layer (1) is provided with wearing layer or the decorative layer of at least one of which coating UV coating, and the bulking factor of described sandwich layer (2) is less than or equal to 2.5%.
2. novel environment friendly waterproof wooden sandwich floor according to claim 1, it is characterized in that: described surface layer (1) uses material to be the one in oak, walnut wood, cherry, Cortex Fraxini mandshuricae, birch, maple wood, Chinese catalpa wood, Tectona grandis L. F., Entandrophragma cylindricum Sprague, sandwich layer (2) uses material to be the one in cement-based material, modified cement sill, calcium silicate board, silicate aluminum board, compound silicate board, glass magnesium board, fibre reinforced composites, waterproof material, and bottom (3) uses material to be the one in poplar, Masson Pine, birch.
3. novel environment friendly waterproof wooden sandwich floor according to claim 1, it is characterised in that: described sandwich layer (2) is preferably and scribbles the fiber cement board of cement based penetration crystallization type water proofing paint, calcium silicate board, magnesium silicate plate, silicate aluminum board, compound silicate board, glass magnesium board or mixed with any one in the fiber cement board of cementitious capillary crystalline waterproofing agent, calcium silicate board, magnesium silicate plate, silicate aluminum board, compound silicate board, glass magnesium board.
4. novel environment friendly waterproof wooden sandwich floor according to claim 1, it is characterised in that: V-type or U-shaped chamfering (4) it is provided with at the edge of described surface layer (1).
5. novel environment friendly waterproof wooden sandwich floor according to claim 1, it is characterised in that: the thickness h 1 >=0.6mm of described surface layer (1), the thickness h 3 >=2mm of bottom (3).
6. novel environment friendly waterproof wooden sandwich floor according to claim 5, it is characterised in that: the thickness h 1 of described surface layer (1) is the one in 0.6mm, 1.2mm, 2.0mm, 3.0mm, and the thickness h 3 of bottom (3) is 2mm.
7. novel environment friendly waterproof wooden sandwich floor according to claim 1, it is characterized in that: glued each through environment-protective adhesive between described surface layer (1) and sandwich layer (2) and between sandwich layer (2) and bottom (3), described environment-protective adhesive is PUR adhesive.
8. according to described novel environment friendly waterproof wooden sandwich floor arbitrary in claim 1 to 7, it is characterized in that: four sides all offer snap close (11), tongue and groove (22), a kind of in hasp (33) or their combinations of any two kinds that can mutually fasten, described snap close (11) is male locking device (111) or locking device and a female (112), described tongue and groove (22) is the tongue and groove (221) or recessed tongue and groove (222) that protrude, and described hasp (33) is hasp (331) upwards or downward hasp (332).
9. novel environment friendly waterproof wooden sandwich floor according to claim 8, it is characterized in that: at described four sides coating waterproof material, at described bottom (3) upper coating damp-proof membrane or waterproof material, described waterproof material can be the one in water-repellent paint, waterproof wax, waterproofing agent, dubbin.
10. novel environment friendly waterproof wooden sandwich floor according to claim 9, it is characterised in that: described water-repellent paint is aqueous polyurethane water-repellent paint or UV solidification water-repellent paint, and dubbin can be Waterproof mildew-resistant wood wax oil.
CN201410782473.1A 2014-12-16 2014-12-16 Novel environment-friendly waterproof wood sandwich floor CN105781061A (en)

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