CN109094127A - A kind of bipolarity middle layer veneer and preparation method thereof - Google Patents
A kind of bipolarity middle layer veneer and preparation method thereof Download PDFInfo
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- CN109094127A CN109094127A CN201811061592.2A CN201811061592A CN109094127A CN 109094127 A CN109094127 A CN 109094127A CN 201811061592 A CN201811061592 A CN 201811061592A CN 109094127 A CN109094127 A CN 109094127A
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- China
- Prior art keywords
- bipolarity
- middle layer
- woven materials
- adhesive
- veneer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
Abstract
A kind of bipolarity middle layer veneer and preparation method thereof, it belongs to material facing manufacture field.Bipolarity veneer of the present invention includes nonpolar base, bipolarity middle layer, surface polarity decorative layer, the nonpolar base is plastics or wood plastic composite, the bipolarity middle layer is one of the non-woven fabrics braided material for being coated or impregnated with Thermosetting adhesive, burlap braided material, cotton braided material, paper braided material, non-woven fabrics non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials, and the surface polarity decorative layer is polarity wood decorative material or polarity paper finishing material.Bipolarity middle layer prepared by the present invention makes substrate surface layer plastic molting and the non-polar plane of middle layer blend or penetrate into gap when heating, the Thermosetting adhesive of the other side is chemically reacted with polar surfacing, by bipolarity middle layer by substrate together with the ornament materials gluing of surface layer.
Description
Technical field
The invention belongs to material facing manufacture fields；More particularly to a kind of bipolarity middle layer veneer and preparation method thereof.
Background technique
Wood plastic composite is a kind of advanced composite material (ACM) being surging forward in recent years both at home and abroad, refers to and utilizes polyethylene, poly- third
Alkene and polyvinyl chloride etc., it is fine with the useless plant such as wood powder, rice husk, stalk more than 50% or more instead of common Resin adhesive
Dimension is mixed into new wood materials, then through plastic processings such as extruding, molding, injection mouldings, the plate or profile produced.
It is mainly used for the industries such as building materials, furniture, logistics packaging.Through hot extrusion molding after plastics and wooden powder are mixed in a certain ratio
Plate.
The alternative natural timber of wood plastic composite, and it is better than plastics, wood plastic composite, also known as environmental protection wood, anticorrosive wood,
It is the feature modified using the macromolecule interfacial principles of chemistry and filling plastic, is equipped with a certain proportion of resin binder, it is former from production
For the angle of material, lignin plastics product slows down and eliminates the public hazards pollution of plastic refuse, also eliminates the burning of agriculture plant
It is polluted to environment bring.The production and use of lignin plastics will not distribute the volatile matter for endangering human health to ambient enviroment,
The also recyclable secondary use of lignin plastics product itself, therefore wood plastic product is a kind of completely new environmentally protective product, is a kind of
The composite material of ecological self-cleaning.However, wood and plastic composite material surface lacks the native texture of timber, it is dull coloring, stiff,
It is difficult to meet the multiple requirements such as people's vision, tactile and comfort, and the smooth tight in surface, nonpolarity, causes wood moulding multiple
The surface wettability of condensation material is poor, cannot use traditional urea-formaldehyde glue, three as conventional artificials' plate such as fiberboard, particieboard
Poly cyanamid glue, isocyanate glue etc. carry out veneer.The difficult wood plastic composite that seriously hinders of incrustation is led in building decoration
The application in domain.
Summary of the invention
The object of the present invention is to provide a kind of bipolarity middle layer veneers and preparation method thereof.
The invention is realized by the following technical scheme:
A kind of bipolarity middle layer veneer, the bipolarity veneer include nonpolar base, bipolarity middle layer, surface
Polarity decorative layer, the nonpolar base are plastics or wood plastic composite, and the bipolarity middle layer is coating or leaching
Non-woven fabrics braided material, burlap braided material, cotton braided material, the paper braided material, non-woven fabrics of stain Thermosetting adhesive
One of non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials, the surface pole
Property decorative layer be polarity wood decorative material or polarity paper finishing material.
A kind of bipolarity middle layer veneer of the present invention, the Thermosetting adhesive are isocyanate glue, modification
One of milky white adhesive, Lauxite, phenolic resin.
A kind of bipolarity middle layer veneer of the present invention, Thermosetting adhesive is isocyanate-modified cream in step 1
White glue, milky white adhesive solid content is 32% in the isocyanate-modified milky white adhesive, and milky white adhesive is with isocyanate ratio
100:15.
A kind of bipolarity middle layer veneer of the present invention, Lauxite, the phenolic resin of all models can make
With.
A kind of bipolarity middle layer veneer of the present invention, the plastics are one of polyethylene, polypropylene, institute
The wood plastic composite stated is wood powder/high-density polyethylene composite material, one in wood powder/high density poly propylene composite material
Kind.
A kind of bipolarity middle layer veneer of the present invention, the nonpolar base with a thickness of 1~30mm, it is bipolar
Property middle layer with a thickness of 0.05~2mm, surface polarity decorative layer with a thickness of 0.1~5mm.
A kind of bipolarity middle layer veneer of the present invention, the coating Thermosetting adhesive with a thickness of 0.01~
0.5mm, 0.1~1mm of thickness of the dipping Thermosetting adhesive.
A kind of preparation method of bipolarity middle layer veneer of the present invention, includes the following steps:
Step 1, by non-woven fabrics braided material, burlap braided material, cotton braided material, paper braided material, non-woven fabrics
One of non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials are coated or impregnated with thermosetting
Property adhesive, room temperature~50 DEG C place a period of time after, obtain bipolarity middle layer, for use；
Step 2 stacks nonpolar base, bipolarity middle layer, surface polarity decorative layer according to sequence from top to bottom,
It is silent to display 1~30min, be then fed into hot press carry out hot pressing, 1~3MPa of hot pressing pressure, 130~170 DEG C heating 3~
6min is slowly cooled to room temperature at 0.5~1MPa after taking-up, and the composite wood of bipolarity middle layer veneer is made.
A kind of preparation method of bipolarity middle layer veneer of the present invention, Thermosetting adhesive is isocyanide in step 1
Acid esters is modified milky white adhesive, and milky white adhesive solid content is 32% in the isocyanate-modified milky white adhesive, milky white adhesive and isocyanates
Mass ratio is 100:15.
A kind of preparation method of bipolarity middle layer veneer of the present invention, hot pressing condition is hot pressing pressure in step 2
2MPa, 150 DEG C of heating 4min, are slowly cooled to room temperature at 0.7MPa after taking-up.
A kind of preparation method of bipolarity middle layer veneer of the present invention, Thermosetting adhesive is with isocyanate-modified
Milky white adhesive gluing, bonding strength 1.32MPa, without peeling after II class dipping and stripping performance test；Thermosetting adhesive
With Lauxite gluing, bonding strength 1.12MPa, without peeling after II class dipping and stripping performance test；Thermosetting cement
Glutinous agent phenolic resin gluing, bonding strength 1.27MPa, without peeling after I class dipping and stripping performance test.
A kind of preparation method of bipolarity middle layer veneer of the present invention, the prepared laminated tool in bipolarity centre
Polarized, another side have nonpolarity or an abundant gap structure, and when heating makes the non-pole of substrate surface layer plastic molting and middle layer
Property side is wanted to merge or penetrate into gap, Thermosetting adhesive is chemically reacted with polar skin-material, by bipolar
Property middle layer is by substrate together with the ornament materials gluing of surface layer.
The preparation method of a kind of bipolarity middle layer veneer of the present invention, in nonpolar plastics and polar wood
Play the role of gluing between the ornament materials such as matter, paper, facilitate industrialized production, matches with traditional assembly technique, without changing
Existing production line is moved, quality is easy to control.
A kind of preparation method of bipolarity middle layer veneer of the present invention, the amount of control coating Thermosetting adhesive,
Sizing is avoided excessively to lead to permeate too deep, the gap structure of holding middle layer another side.
Specific embodiment
Specific embodiment 1:
A kind of bipolarity middle layer veneer, the bipolarity veneer include nonpolar base, bipolarity middle layer, surface
Polarity decorative layer, the nonpolar base are wood plastic composite, and the bipolarity middle layer is to be coated or impregnated with thermosetting
Property adhesive burlap non-woven materials, the surface polarity decorative layer be polarity wood decorative material.
A kind of bipolarity middle layer veneer described in present embodiment, the Thermosetting adhesive are isocyanate-modified
One of milky white adhesive, Lauxite, phenolic resin.
A kind of bipolarity middle layer veneer described in present embodiment, the wood plastic composite are wood powder/high density
Composite polyethylene material.
A kind of bipolarity middle layer veneer described in present embodiment, the nonpolar base with a thickness of 1~30mm,
Bipolarity middle layer with a thickness of 0.05~2mm, surface polarity decorative layer with a thickness of 0.1~5mm.
A kind of bipolarity middle layer veneer described in present embodiment, the coating Thermosetting adhesive with a thickness of
0.01~0.5mm, 0.1~1mm of thickness of the dipping Thermosetting adhesive.
A kind of bipolarity middle layer veneer described in present embodiment, according to the side in national standard GB/T 17657-2013
The surface bonding intensity and dipping and stripping length, test result of method measurement are as shown in table 1:
The wood plastic composite facing performance of the preparation method preparation of 1 wood plastic composite facing of table
A kind of bipolarity middle layer veneer described in present embodiment, the isocyanate-modified milky white adhesive gluing of adhesive,
Bonding strength is 1.32MPa, without peeling after II class dipping and stripping performance test；Adhesive Lauxite gluing, glue
Conjunction intensity is 1.12MPa, without peeling after II class dipping and stripping performance test；Thermosetting adhesive is applied with phenolic resin
Glue, bonding strength 1.27MPa, without peeling after I class dipping and stripping performance test.
Specific embodiment 2:
A kind of preparation method of bipolarity middle layer veneer, includes the following steps: according to specific embodiment one
Step 1, by non-woven fabrics braided material, burlap braided material, cotton braided material, paper braided material, non-woven fabrics
One of non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials are coated or impregnated with thermosetting
Property adhesive, room temperature~50 DEG C place a period of time after, obtain bipolarity middle layer, for use；
Step 2 stacks nonpolar base, bipolarity middle layer, surface polarity decorative layer according to sequence from top to bottom,
It is silent to display 1~30min, be then fed into hot press carry out hot pressing, 1~3MPa of hot pressing pressure, 130~170 DEG C heating 3~
6min is slowly cooled to room temperature at 0.5~1MPa after taking-up, and the composite wood of bipolarity middle layer veneer is made.
A kind of preparation method of bipolarity middle layer veneer described in present embodiment, Thermosetting adhesive is in step 1
Isocyanate-modified milky white adhesive, milky white adhesive solid content is 32% in the isocyanate-modified milky white adhesive, milky white adhesive and isocyanide
Acid esters mass ratio is 100:15.
A kind of preparation method of bipolarity middle layer veneer described in present embodiment, hot pressing condition is hot pressing in step 2
Pressure 2MPa, 150 DEG C of heating 4min, are slowly cooled to room temperature at 0.7MPa after taking-up.
Specific embodiment 3:
A kind of bipolarity middle layer coating process, the bipolarity veneer include nonpolar base, bipolarity middle layer,
Surface polarity decorative layer, the nonpolar base are plastics or wood plastic composite, and the bipolarity middle layer is coating
Or non-woven fabrics braided material, burlap braided material, cotton braided material, the paper braided material, nothing of dipping Thermosetting adhesive
One of woven fabric non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials, the table
Face polarity decorative layer is polarity wood decorative material or polarity paper finishing material.
Specific embodiment 4:
A kind of bipolarity middle layer veneer according to specific embodiment three, the Thermosetting adhesive are isocyanide
One of acid esters glue, modified milky white adhesive, Lauxite, phenolic resin.
Specific embodiment 5:
A kind of bipolarity middle layer veneer according to specific embodiment three, the plastics are polyethylene, poly- third
One of alkene, the wood plastic composite is wood powder/high-density polyethylene composite material, wood powder/high density poly propylene is multiple
One of condensation material.
Specific embodiment 6:
A kind of bipolarity middle layer veneer according to specific embodiment three, the nonpolar base with a thickness of
1~30mm, bipolarity middle layer with a thickness of 0.05~2mm, surface polarity decorative layer with a thickness of 0.1~5mm.
Specific embodiment 7:
A kind of bipolarity middle layer veneer according to specific embodiment three, the coating Thermosetting adhesive
With a thickness of 0.01~0.5mm, 0.1~1mm of thickness of the dipping Thermosetting adhesive.
Specific embodiment 8:
A kind of preparation method of bipolarity middle layer veneer, includes the following steps: according to specific embodiment three
Step 1, by non-woven fabrics braided material, burlap braided material, cotton braided material, paper braided material, non-woven fabrics
One of non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials are coated or impregnated with thermosetting
Property adhesive, room temperature~50 DEG C place a period of time after, obtain bipolarity middle layer, for use；
Step 2 stacks nonpolar base, bipolarity middle layer, surface polarity decorative layer according to sequence from top to bottom,
It is silent to display 1~30min, be then fed into hot press carry out hot pressing, 1~3MPa of hot pressing pressure, 130~170 DEG C heating 3~
6min is slowly cooled to room temperature at 0.5~1MPa after taking-up, and the composite wood of bipolarity middle layer veneer is made.
A kind of preparation method of bipolarity middle layer veneer described in present embodiment, Thermosetting adhesive is in step 1
Isocyanate-modified milky white adhesive, milky white adhesive solid content is 32% in the isocyanate-modified milky white adhesive, milky white adhesive and isocyanide
Acid esters mass ratio is 100:15.
A kind of preparation method of bipolarity middle layer veneer described in present embodiment, hot pressing condition is hot pressing in step 2
Pressure 2MPa, 150 DEG C of heating 4min, are slowly cooled to room temperature at 0.7MPa after taking-up.
A kind of preparation method of bipolarity middle layer veneer, Thermosetting adhesive isocyanates described in present embodiment
Modified milky white adhesive gluing, bonding strength 1.32MPa, without peeling after II class dipping and stripping performance test；Thermosetting cement
Glutinous agent Lauxite gluing, bonding strength 1.12MPa, without peeling after II class dipping and stripping performance test；Thermosetting
Property adhesive phenolic resin gluing, bonding strength 1.27MPa, without peeling after I class dipping and stripping performance test.
Claims (8)
1. a kind of bipolarity middle layer veneer, it is characterised in that: the bipolarity veneer is including in nonpolar base, bipolarity
Interbed, surface polarity decorative layer, the nonpolar base are plastics or wood plastic composite, and the bipolarity middle layer is
It is coated or impregnated with non-woven fabrics braided material, burlap braided material, cotton braided material, the paper braiding material of Thermosetting adhesive
One of material, non-woven fabrics non-woven materials, burlap non-woven materials, cotton non-woven materials, paper non-woven materials, it is described
Surface polarity decorative layer be polarity wood decorative material or polarity paper finishing material.
2. a kind of bipolarity middle layer veneer according to claim 1, it is characterised in that: the Thermosetting adhesive is
One of isocyanate glue, modified milky white adhesive, Lauxite, phenolic resin.
3. a kind of bipolarity middle layer veneer according to claim 1, it is characterised in that: the plastics be polyethylene,
One of polypropylene, the wood plastic composite are wood powder/high-density polyethylene composite material, wood powder/high density poly- third
One of alkene composite material.
4. a kind of bipolarity middle layer veneer according to claim 1, it is characterised in that: the thickness of the nonpolar base
Degree is 1~30mm, bipolarity middle layer with a thickness of 0.05~2mm, surface polarity decorative layer with a thickness of 0.1~5mm.
5. a kind of bipolarity middle layer veneer according to claim 1, it is characterised in that: the coating thermosetting property gluing
Agent with a thickness of 0.01~0.5mm, 0.1~1mm of thickness of the dipping Thermosetting adhesive.
6. a kind of preparation method of bipolarity middle layer veneer described in a kind of one of claim 1-5, it is characterised in that: including
Following steps:
Step 1, by non-woven fabrics braided material, burlap braided material, cotton braided material, paper braided material, the non-volume of non-woven fabrics
It knits one of material, burlap non-woven materials, cotton non-woven materials, paper non-woven materials and is coated or impregnated with thermosetting cement
Glutinous agent obtains bipolarity middle layer, for use after a period of time is placed in room temperature~50 DEG C；
Step 2 stacks nonpolar base, bipolarity middle layer, surface polarity decorative layer according to sequence from top to bottom, silent
1~30min is displayed, hot press is then fed into and carries out hot pressing, 1~3MPa of hot pressing pressure, 130~170 DEG C of 3~6min of heating take
It is slowly cooled to room temperature at 0.5~1MPa after out, the composite wood of bipolarity middle layer veneer is made.
7. a kind of preparation method of bipolarity middle layer veneer according to claim 6, it is characterised in that: hot in step 1
Solidity adhesive is isocyanate-modified milky white adhesive, and milky white adhesive solid content is 32% in the isocyanate-modified milky white adhesive,
Milky white adhesive and isocyanate ratio are 100:15.
8. a kind of preparation method of bipolarity middle layer veneer according to claim 6, it is characterised in that: hot in step 2
Press strip part is hot pressing pressure 2MPa, 150 DEG C of heating 4min, is slowly cooled to room temperature at 0.7MPa after taking-up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811061592.2A CN109094127A (en) | 2018-09-12 | 2018-09-12 | A kind of bipolarity middle layer veneer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811061592.2A CN109094127A (en) | 2018-09-12 | 2018-09-12 | A kind of bipolarity middle layer veneer and preparation method thereof |
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| CN103758340A (en) * | 2014-02-20 | 2014-04-30 | 东北林业大学 | Wood plastic composite material cladding plywood formwork and manufacturing method thereof |
| CN103831885A (en) * | 2014-02-20 | 2014-06-04 | 东北林业大学 | Wood-plastic composite of wood decorative sheet attaching veneer and preparation method thereof |
| CN104441863A (en) * | 2013-09-16 | 2015-03-25 | 辽宁辽杰科技有限公司 | Composite material plate, preparation method and applications thereof |
| CN107206620A (en) * | 2014-11-06 | 2017-09-26 | 地板技术有限公司 | Especially in the composite wood boards of wood plastic composite form and the method for its manufacture |
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2018
- 2018-09-12 CN CN201811061592.2A patent/CN109094127A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441863A (en) * | 2013-09-16 | 2015-03-25 | 辽宁辽杰科技有限公司 | Composite material plate, preparation method and applications thereof |
| CN103758340A (en) * | 2014-02-20 | 2014-04-30 | 东北林业大学 | Wood plastic composite material cladding plywood formwork and manufacturing method thereof |
| CN103831885A (en) * | 2014-02-20 | 2014-06-04 | 东北林业大学 | Wood-plastic composite of wood decorative sheet attaching veneer and preparation method thereof |
| CN107206620A (en) * | 2014-11-06 | 2017-09-26 | 地板技术有限公司 | Especially in the composite wood boards of wood plastic composite form and the method for its manufacture |
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