CN107309982A - It is a kind of to strengthen the preparation method of flexible decoration veneer without curling plastic film - Google Patents
It is a kind of to strengthen the preparation method of flexible decoration veneer without curling plastic film Download PDFInfo
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- CN107309982A CN107309982A CN201710478498.6A CN201710478498A CN107309982A CN 107309982 A CN107309982 A CN 107309982A CN 201710478498 A CN201710478498 A CN 201710478498A CN 107309982 A CN107309982 A CN 107309982A
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- CN
- China
- Prior art keywords
- plastic film
- veneer
- flexible decoration
- male
- curling
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
Abstract
The invention discloses a kind of preparation method without curling plastic film enhancing flexible decoration veneer, comprise the following steps：Plastic film and decorative veneer are stacked to form composite blank.The upper and lower surface of the composite blank is added into antiadhesion barrier respectively, book moulding in male and female mold is subsequently placed in, the male and female mold with antiadhesion barrier is placed in hot press and carries out hot pressing and is combined, then release and normal temperature is cooled to；Or the upper and lower surface of the composite blank is added into antiadhesion barrier respectively, in composite blank bottom surface pading plate or industrial felt with antiadhesion barrier, then progress hot pressing in hot press is placed in again to be combined, composite plate blanks are taken out to obtain after release, the composite plate blanks are put into male and female mold and carry out reversely being cooled to normal temperature.Obtained after demoulding processing without curling plastic film enhancing flexible decoration veneer.The present invention prepare without curling plastic film enhancing flexible decoration veneer pliability and planarization is good, water-tolerant, not seep through, it is to avoid free formaldehyde release problem, with good application prospect.
Description
Technical field
The invention belongs to wood processing technique field.It is thin without curling plastic film enhancing flexible decorative more particularly, to one kind
The preparation method of wood.
Background technology
China is woodwork manufacture big country, wherein, the production capacity of timber, wooden furniture and timber floor etc. and the output value Jun Ju worlds the
One.With rapid development of economy and the continuous progress of living standard, China's furniture industry and interior design are in recent years
The trend of rapid growth is presented, the wilderness demand to wood decorative material has been driven, and China's timber resource shortage, particularly treasure
Your timber resources is even more that supply falls short of demand.It is wooden at present to improve the added value of product and rare tree timber utilization rate of woodwork
Product surface finish material generally uses flexible decoration veneer, i.e., be made by the good reinforcing material of different pliabilities and veneer are compound,
Its pliability is good, transverse tensile strength is high, is particularly suitable for use in woodwork compromise face veneer, reaches incrustation purpose.Market
Common non-woven fabrics or paper substrates flexible decoration veneer water proofing property is poor, easy seep through, " finishing process complicated, and the glue that compound tense is used
Glutinous agent is generally not environmentally friendly enough containing formaldehyde, and thus, new plastic film substrate flexibility decorative veneer preparation method is arisen at the historic moment.However, modeling
Film is thermoplastic, and its melting temperature reaches 130 DEG C, its thermal expansion coefficient difference with both decorative veneers significantly, about
10 times or so of the latter, plastic film strengthens flexible decoration veneer to the curling on the inside of plastic film under the conditions of thus easily causing high temperature hot pressing
Deformation, is unfavorable for industrialized production and uses.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide one kind without curling plastic film enhancing flexible decoration veneer
Preparation method.The composite blank of fixing means, i.e. plastic film and decorative veneer is reversely cooled down in hot pressing using male and female mold immediately
Its internal sizes pin structure is fixed in recombination process, until release is cooled and shaped, so as to realize composite blank high warm
While pressure is compound, its Texturized problem is solved.This method can be propulsion plastic film enhancing flexible decoration veneer industrialized production
Technical conditions are provided, with very big Research Significance and application value.
A kind of preparation method without curling, comprises the following steps：
1) decorative veneer of plastic film and rotary-cut or slicing is stacked to form composite blank；
2) the upper and lower surface of the composite blank is added into antiadhesion barrier respectively, is subsequently placed in book moulding in male and female mold；
3) by step 2) male and female mold be placed in hot press and carry out hot pressing and be combined, then release and be cooled to normal temperature, take off
Obtained after mould processing without curling plastic film enhancing flexible decoration veneer.
It is a kind of to strengthen the preparation method of flexible decoration veneer without curling plastic film, it can also be achieved by the steps of：
1) decorative veneer of plastic film and rotary-cut or slicing is stacked to form composite blank；
2) the upper and lower surface of the composite blank is added into antiadhesion barrier respectively, in the composite blank bottom surface pad with antiadhesion barrier
Steel plate or industrial felt, are then placed in progress hot pressing in hot press and are combined, composite plate blanks are taken out to obtain after release again；
3) composite plate blanks are put into male and female mold and carry out reversely being cooled to normal temperature, obtained after demoulding processing without curling modeling
Film strengthens flexible decoration veneer.
Further, the plastic film is polyethylene film, polypropylene screen or other plastic materials, and the thickness of plastic film is 0.02-
0.05mm。
Further, the thickness of rotary-cut or the slicing decorative veneer is 0.06-0.3mm, and moisture content is 8- after drying
15%.
Further, the compound temperature of the hot pressing is 110-160 DEG C, and the hot pressing compound time is 2-7min, and hot pressing is combined
Pressure be 0.4-1.2Mpa；It is the process of a high-temperature fusion that the hot pressing of the present invention is compound.
Further, the material that the male and female mold is metal or other thermal conductivity are good, melting temperature is high, the width of male and female mold
Breadth of the degree more than composite blank, it is ensured that its rate of heat transfer and energy.
Further, in order to farthest offset plastic film and decorative veneer hot pressing Compound cooling after-contraction displacement difference causes
It is Texturized, the radius of curvature of the male and female mold is 50-300mm, and radius of curvature and the hot pressing of male and female mold of the present invention are answered
Close temperature and the breadth size of composite blank etc. relevant.
Further, the antiadhesion barrier is polytetrafluoroethylene (PTFE) antiadhesion barrier；Further, in order that hot press preferably conducts heat,
The thickness of the antiadhesion barrier is 0.1mm-2mm.
Further, composite blank or composite plate blanks are placed in male and female mold cavity along its decorative veneer band direction；
And the decorative veneer of composite blank or composite plate blanks fits with punch-pin, plastic film fits with cavity plate.
Further, the demoulding processing refers to take off composite blank or composite plate blanks with antiadhesion barrier from male and female mold
Mould, then again tears it down plastic film enhancing flexible decoration veneer, horizontal stacks or be rolled into a roll to use for veneer from antiadhesion barrier.
Further, the thickness of the decorative veneer is 0.06-0.3mm, and moisture content is 8-15%.
Further, the release time is 5-300s.
Further, demoulding time is 3-120s in the demoulding processing procedure.
The present invention is joined by techniques such as the radius of curvature to concave-convex mold, hot pressing combined temp, release time and demoulding times
Several Collaborative Controls, completes instant reverse cooling of the plastic film enhancing flexible decoration veneer in high-temperature fusion and fixes, so as to ensure
Product is without curling during mould unloading.
Strengthen flexible decoration veneer relative to plastic film prepared by prior art, prepared by the present invention soft without curling plastic film enhancing
Property release of the decorative veneer without free formaldehyde.
Beneficial effects of the present invention are as follows：
1st, using the present invention method prepare without curling plastic film enhancing flexible decoration veneer, not only can effectively solve plastic film with
Decorative veneer high temperature hot pressing crimp, and mould is simple, and production efficiency is high, is conducive to plastic film to strengthen flexible decoration veneer real
Existing industrialized production.
2nd, the present invention prepare without curling plastic film enhancing flexible decoration veneer pliability and planarization is good, water-tolerant, no
Seep through, it is to avoid free formaldehyde release problem, improves utilization rate of precious timber, with good application prospect.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows that the present invention prepares the hot pressing without curling plastic film enhancing flexible decoration veneer and is combined schematic diagram.
Wherein, 1, upper hot pressboard, 2, cavity plate, 3, the composite blank with antiadhesion barrier, 4, punch-pin, 5, lower hot pressing board.
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
Embodiment 1
1) thickness for being molded slicing is 0.3mm, and breadth is dried to moisture content for 250mm natural black walnut decorative veneer
For 10%；The low density polyethylene films of natural black walnut decorative veneer and breadth 240mm are stacked and to form breadth and is combined for 250mm
Blank；
2) concave-convex mold that radius of curvature is 135-260mm is prepared according to the breadth of composite blank and hot pressing combined temp condition
Tool, then adds the thick polytetrafluoroethylene (PTFE) antiadhesion barriers of 0.4mm respectively by the upper and lower surface of composite blank；Again by it along composite billet
Decorative veneer band direction is placed in book moulding in male and female mold in material；
3) male and female mold with composite blank is placed in hot press under conditions of 150 DEG C of temperature, pressure 0.8MPa
Carry out hot pressing and be combined 360s, release 5s, is stripped 15s so that male and female mold takes out from hot press after release after hot pressing is compound；
4) male and female mold taken out is forced to be cooled to after normal temperature, will strengthen flexible decoration veneer without curling plastic film from polytetrafluoro
Torn it down on ethene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
Crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer prepared by this method is infinitely great, surfacing
Spend.
It is as shown in Figure 1 that the present invention prepares the compound schematic diagram of hot pressing without curling plastic film enhancing flexible decoration veneer.
Embodiment 2
1) thickness for being molded slicing is 0.2mm, and the neutral red oak decorative veneer that breadth is 300mm, which is dried to moisture content, is
9%；Neutral red oak decorative veneer and breadth 280mm low density polyethylene films are stacked to form composite blank；
2) press step 1) method prepare the composite blanks of 5-6 groups, the upper and lower surface of every group of composite blank adds respectively
Polytetrafluoroethylene (PTFE) antiadhesion barrier thick 0.4mm；Preparing radius of curvature according to the breadth of composite blank and hot pressing combined temp condition is
115-230mm male and female mold；Composite blank with polytetrafluoroethylene (PTFE) antiadhesion barrier is built up into pile, and along in composite blank
Decorative veneer band direction is placed in male and female mold cavity；
3) male and female mold that will be equipped with composite blank is placed in hot press under conditions of 150 DEG C of temperature, pressure 1.0MPa
Carry out hot pressing and be combined 480s, release 30s, is stripped 10s so that male and female mold takes out from hot press after release after hot pressing is compound；
4) after step 3) male and female mold force after being cooled to normal temperature, plastic film is strengthened into flexible decoration veneer from polytetrafluoroethyl-ne
Torn it down on alkene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
Crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer prepared by this method is infinitely great, surfacing
Spend.
Embodiment 3
1) thickness for being molded slicing is 0.3mm, and the natural teak decorative veneer that breadth is 300mm, which is dried to moisture content, is
10%；Natural teak decorative veneer and breadth are stacked to form composite blank for 300mm low density polyethylene films；
2) the upper and lower surface of composite blank is added into the thick polytetrafluoroethylene (PTFE) antiadhesion barriers of 0.5mm respectively, with antiadhesion barrier
Composite blank bottom surface pading plate；Then the progress hot pressing under the conditions of 130 DEG C of temperature, pressure 0.6Mpa is placed in hot press again to be combined
240s；Release 90s, takes out to obtain composite plate blanks after hot pressing is compound after release；
3) concave-convex mold that radius of curvature is 135-270mm is prepared according to the breadth of composite blank and hot pressing combined temp condition
Tool；Composite plate blanks are placed in male and female mold cavity along decorative veneer band direction；Progress is reversely cooled to normal temperature；
4) composite plate blanks are subjected to demoulding 30s from male and female mold, plastic film is strengthened into flexible decoration veneer from poly- after the demoulding
Torn it down on tetrafluoroethene antiadhesion barrier, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
Crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer prepared by this method is infinitely great, surfacing
Spend.
Embodiment 4
1) Laminated flitch is first combined into by the pattern of veneer by flower pears, the thickness for being then molded slicing is 0.2mm, and breadth is
It is 8%~10% that 300mm flower pears parquets veneer, which is dried to moisture content,；By the low-density of flower pears parquets veneer and breadth 300mm
Polyethylene film stacks to form composite blank；
2) concave-convex mold that radius of curvature is 135-260mm is prepared according to the breadth of composite blank and hot pressing combined temp condition
Tool, then adds the thick polytetrafluoroethylene (PTFE) antiadhesion barriers of 0.3mm by the upper and lower surface of composite blank, is placed in male and female mold and folds respectively
Synthesis type；
3) male and female mold with composite blank is placed in hot press under conditions of 140 DEG C of temperature, pressure 0.6MPa
Carry out hot pressing and be combined 320s, release 60s, is stripped 15s so that male and female mold takes out from hot press after release after hot pressing is compound；
4) male and female mold of taking-up is cooled to after normal temperature, it is anti-sticking from polytetrafluoroethylene (PTFE) that plastic film is strengthened into flexible decoration veneer
Torn it down on film, horizontal stacks or be rolled into a roll to use for wood product surface veneer.
Crimpness radius of curvature without curling plastic film enhancing flexible decoration veneer prepared by this method is infinitely great, surfacing
Spend.
Embodiment 5 strengthens the performance test of flexible decoration veneer without curling plastic film
1) seep through degree：Observe strengthens the surface wet condition of flexible decoration veneer without curling plastic film, by seep through size
It is divided into four grade discriminations, is shown in Table 1.
The seep through grade of the flexible decoration veneer of table 1
| Seep through grade | 1 | 2 | 3 | 4 |
| Seep through area | 0-10% | 10-30% | 30-50% | >50% |
2) pliability
200mm × 75mm will be cut into without curling plastic film enhancing flexible decoration veneer along the rift grain direction of decorative veneer respectively
Test specimen, totally 32, experiment is crimped on different-diameter rod iron respectively.Rod iron long 100mm, a diameter of 2mm, 4mm, 6mm,
8mm, 10mm, 12mm and 14mm, its pliability is characterized with the rod iron diameter that each test specimen is crimped when rupturing.
3) peel strength
200mm × 25mm test specimen will be cut into along decorative veneer rift grain direction without curling plastic film enhancing flexible decoration veneer,
Peel strength is according to GB/T 2791-1995《Adhesive T peeling strength test method flexible materials are to flexible material》It is required that inspection
Survey[9].5 test specimens are taken under each test level, 90 altogether.
4) transverse tensile strength
With reference to GB/T 7911-2013《Thermosetting resin impregnated paper high pressure laminated decorative board (HPL)》Middle test for tensile strength
Method is carried out.100mm (band direction) × 20mm test specimen 5 will be prepared into without curling plastic film enhancing flexible decoration veneer, it is old
Put after 24h, maximum load during its destruction is detected on timber mechanics universal testing machine, and tensile strength is calculated as follows：It is anti-
Load (N)/basal area (mm during tensile strength (MPa)=test specimen destruction2), results averaged.
5) dipping and stripping performance
Will be without curling plastic film enhancing flexible decoration veneer, according to GB/T 15104-2006《Fancy veneer face artificial board》
Prepare test specimen, and after being handled by corresponding conditionses, whether there is stripping lamination between observation decorative veneer and plastic film, and measure
Each side strip length, results averaged.
Embodiment 1 to 4 is subjected to seep through degree, pliability, dipping stripping respectively without curling plastic film enhancing flexible decoration veneer
From the experiment test of intensity, transverse tensile strength and dipping and stripping performance, as a result as shown in table 2.
The embodiment 1 to 4 of table 2 without curling plastic film enhancing flexible decoration veneer the performance test results
By table 2, the present invention prepare without curling plastic film enhancing flexible decoration veneer pliability is good, water-tolerant,
Not seep through, and with good peel strength and transverse tensile strength.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that comprises the following steps：
1) plastic film and decorative veneer are stacked to form composite blank；
2) the upper and lower surface of the composite blank is added into antiadhesion barrier respectively, is subsequently placed in book moulding in male and female mold；
3) by step 2) male and female mold be placed in hot press and carry out hot pressing and be combined, then release and normal temperature is cooled to, at the demoulding
Obtained after reason without curling plastic film enhancing flexible decoration veneer.
2. a kind of strengthen the preparation method of flexible decoration veneer without curling plastic film as claimed in claim 1, it is characterised in that may be used also
To be achieved by the steps of：
Step 1) with claim 1；
2) the upper and lower surface of the composite blank is added into antiadhesion barrier respectively, in the composite blank bottom surface pading plate with antiadhesion barrier
Or industrial felt, progress hot pressing in hot press is then placed in again and is combined, and composite plate blanks are taken out to obtain after release；
3) composite plate blanks are put into male and female mold and carry out reversely being cooled to normal temperature, obtained and increase without curling plastic film after demoulding processing
Strong flexible decoration veneer.
3. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
Plastic film is stated for polyethylene film, polypropylene screen or other plastic materials, the thickness of plastic film is 0.02-0.05mm.
4. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
It is 110-160 DEG C to state the compound temperature of hot pressing, and the hot pressing compound time is 2-7min, and the compound pressure of hot pressing is 0.4-
1.2Mpa。
5. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
The radius of curvature for stating male and female mold is 50-300mm.
6. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
State the material that male and female mold is metal or other thermal conductivity are good, melting temperature is high.
7. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
Antiadhesion barrier is stated for polytetrafluoroethylene (PTFE) antiadhesion barrier, the thickness of antiadhesion barrier is 0.1mm-2mm.
8. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it, which is levied, is, will be multiple
Close blank or composite plate blanks are placed in male and female mold cavity along its decorative veneer band direction；And composite blank or composite plate blanks
Decorative veneer fitted with punch-pin, plastic film fits with cavity plate.
9. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it, which is levied, is, described
Demoulding processing refers to composite blank or composite plate blanks with antiadhesion barrier being stripped from male and female mold, then again strengthens plastic film
Flexible decoration veneer tears it down from antiadhesion barrier, and horizontal stacks or be rolled into a roll to use for veneer.
10. according to claim 1 or claim 2 strengthen the preparation method of flexible decoration veneer without curling plastic film, it is characterised in that institute
The thickness for stating decorative veneer is 0.06-0.3mm, and moisture content is 8-15%.
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| CN201710478498.6A CN107309982B (en) | 2017-06-22 | 2017-06-22 | A kind of preparation method without curling plastic film enhancing flexible decoration veneer |
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| CN201710478498.6A CN107309982B (en) | 2017-06-22 | 2017-06-22 | A kind of preparation method without curling plastic film enhancing flexible decoration veneer |
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| CN107309982A true CN107309982A (en) | 2017-11-03 |
| CN107309982B CN107309982B (en) | 2019-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040651A (en) * | 2019-11-25 | 2020-04-21 | 浙江升华云峰新材股份有限公司 | Pressure-sensitive flexible veneer and manufacturing method thereof |
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| JPH06114933A (en) * | 1992-09-30 | 1994-04-26 | Toppan Printing Co Ltd | Manufacture of decorative material |
| CN104139431A (en) * | 2014-07-22 | 2014-11-12 | 哈尔滨盛世华林科技有限公司 | Manufacturing method of anti-deformation solid wood multilayer laminated plate |
| CN105298085A (en) * | 2015-10-28 | 2016-02-03 | 嘉善贝马五金配件有限公司 | Wood-plastic floor and manufacturing method thereof |
| CN205498041U (en) * | 2016-02-17 | 2016-08-24 | 苏州洲联材料科技有限公司 | Board molding device is moulded to curved surface wood |
| CN106272877A (en) * | 2016-08-15 | 2017-01-04 | 汕头市亨德利塑胶有限公司 | A kind of for outdoor high temperature resistant wood plastic composite and preparation thereof |
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2017
- 2017-06-22 CN CN201710478498.6A patent/CN107309982B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114933A (en) * | 1992-09-30 | 1994-04-26 | Toppan Printing Co Ltd | Manufacture of decorative material |
| CN104139431A (en) * | 2014-07-22 | 2014-11-12 | 哈尔滨盛世华林科技有限公司 | Manufacturing method of anti-deformation solid wood multilayer laminated plate |
| CN105298085A (en) * | 2015-10-28 | 2016-02-03 | 嘉善贝马五金配件有限公司 | Wood-plastic floor and manufacturing method thereof |
| CN205498041U (en) * | 2016-02-17 | 2016-08-24 | 苏州洲联材料科技有限公司 | Board molding device is moulded to curved surface wood |
| CN106272877A (en) * | 2016-08-15 | 2017-01-04 | 汕头市亨德利塑胶有限公司 | A kind of for outdoor high temperature resistant wood plastic composite and preparation thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040651A (en) * | 2019-11-25 | 2020-04-21 | 浙江升华云峰新材股份有限公司 | Pressure-sensitive flexible veneer and manufacturing method thereof |
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