CN104592685A - Solid-core polymer foaming building template and production method thereof - Google Patents
Solid-core polymer foaming building template and production method thereof Download PDFInfo
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- CN104592685A CN104592685A CN201510051531.8A CN201510051531A CN104592685A CN 104592685 A CN104592685 A CN 104592685A CN 201510051531 A CN201510051531 A CN 201510051531A CN 104592685 A CN104592685 A CN 104592685A
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- building template
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- foaming building
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- 238000005187 foaming Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 229920000642 polymer Polymers 0.000 title abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
- 229920002521 macromolecule Polymers 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000008236 heating water Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004088 foaming agent Substances 0.000 abstract 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 235000021355 Stearic acid Nutrition 0.000 abstract 1
- 150000004645 aluminates Chemical class 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 abstract 1
- 239000012760 heat stabilizer Substances 0.000 abstract 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 238000004513 sizing Methods 0.000 abstract 1
- 239000008117 stearic acid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 238000010276 construction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a solid-core polymer foaming building template and a production method thereof. The solid-core polymer foaming building template comprises the following components in percentage by mass: 40-60% of recyclable PVC door-window waste, 20-30% of PVC-8 type resin, 3-10% of CPE-135A, 1-4% of heat stabilizer, 0.2-0.8% of PE-WAX, 0.3-0.8% of silicon dioxide, 0.1-0.6% of carbon cellulose, 1-4% of alkali-free glass fiber, 0.2-0.5% of stearic acid, 0.5-2.5% of monostearin, 0.5-2.5% of aluminate, 5-14% of light calcium carbonate, 0.2-1.3% of a foaming stabilizer, 0.5-1.5% of a foaming conditioner, 0.1-0.3% of a white foaming agent and 0.2-1.2% of a yellow foaming agent. The production method comprises the steps of mixture preparation, extrusion molding, cooling and traction, and the building template is produced in mold sizing according to required template length after the traction. Through the adoption of the solid-core polymer foaming building template, the PVC door-window waste coming from a recycling market accounts for about 50% of the formula, and other new chemical materials only account for about 50%, the component proportion in the formula is proper, the product is energy-saving and environment-friendly, and the aim of recycling the resource is achieved.
Description
Technical field
The present invention relates to a kind of real core macromolecule foaming building template, the invention still further relates to a kind of production method of real core macromolecule foaming building template, belong to plastic plate field.
Background technology
PVC foam sheet material is a kind of novel plastic material of external 20 century 70 exploitations, due to the production technology of its uniqueness, make it have excellent performance, be widely used in the industries such as building, car and boat, furniture, decorations, ad production, exhibition label, appearance of the city environmental protection, tourism.Hard skinning low ratio foamed PVC board is exactly the material of a kind of excellent performance wherein, in recent years, China's structural foamed extrusion production of articles quite gets along with, but scale, range of product and quality aspect are all incompatible with the developing state in China's chemical building material market, the relevant formula of extrusion foaming technique, processing condition, device structure parameter and they and the density of foaming product and the relation of performance also await studying and optimizing further, mainly there is the unfairness of plate face in the PVC foam sheet material of current use, skinning thickness is thin, poor surface smoothness, production efficiency is low, the problems such as volume recovery is low.
Existing market has the PVC foam building template of production, and in construction, there is loss too large, construction enterprises do not save money, and the amortization of material cost construction enterprises exceedes traditional carpenter's template and flitch cost.And formula is without modification, can not meet the specification of quality needed for product.And be take a lot of work at workman's formwork supporting plate, workman does not like using.
A kind of macromolecule foaming building template, current polymer building panel (such as having reported patent of invention and utility model patent: the patent No.: ZL201320132656X) introduces successful to the market, construction enterprises save money, with traditional flitch, woodwork plate is compared, and saves construction enterprises' materials cost 30%, saving of labor, save labour cost 20%, after building mixed earth form removal, reach clear water mix earth effect.But in construction, basement in high rise building, nonstandard layer, local special-shaped formwork part, exist porous polymer template spell mould time inconvenience reinforce, in construction local special-shaped portion there is weak point.
Summary of the invention
The object of the invention is to for deficiency of the prior art, provide a kind of real core macromolecule foaming building template and production method thereof, in formula, each component ratio is suitable, product energy-saving and environmental protection, reach resource recycling.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of real core macromolecule foaming building template, and its innovative point is: comprise following composition and respective massfraction:
Further, following composition and respective massfraction is comprised:
Further, described foaming stabiliser is HL-90; Foaming control agent is ZD-60.
Further, described white whipping agent is Cellmic C 121; Yellow whipping agent is sodium bicarbonate.
Another object of the present invention is to provide a kind of production method of real core macromolecule foaming building template, comprise batch mixing preparation, extrusion moulding and cooling step, finally enter traction, produce according to mould scale by required template length after traction, its innovative point is: described extrusion moulding step is employing 65/132 type twin screw extruder, extrudes after adding thermalization; Heating temperature is: 170 DEG C, a district, 175 DEG C, 2nd district, 180 DEG C, 3rd district, 175 DEG C, 4th district, merging core 145 ~ 150 DEG C, die temperature are 180 DEG C, mould one district, 180 DEG C, 2nd district, 180 DEG C, 3rd district, 180 DEG C, 4th district.
Further, described cooling step is for adopting electric-heating water cooling and shaping, and the template be specially through extruding enters stock mould dedicated water cooling water tank, stock mould and main frame mould counterpart, and both gaps are 2 ~ 5mm.
Further, described stock mould and main frame mould gap are 5mm.
Further, described die size is 200mm × 15mm, 245mm × 15mm, 300mm × 15mm, 450mm × 15mm, 600mm × 15mm.
Beneficial effect of the present invention is as follows:
(1) real core macromolecule foaming building template of the present invention, reclaim PVC door and window waste material on market in formula and account for about 50% of formula, other new industrial chemicals only account for about 50%, and in formula, each component ratio is suitable, product energy-saving and environmental protection, reach resource recycling.
(2) real core macromolecule foaming building template of the present invention, conveniently reinforces when template spells mould, and in construction, local area is also not easily special-shaped, formula is through modification, meet the specification of quality required for product, in construction, there is not loss too large, the problem that construction enterprises are costly.
(3) real core macromolecule foaming building template production method of the present invention, on the basis of PVC modified formula of the present invention, in extrusion technical process, eliminate the technique of current production, use electrically heated expressed water cooling process, good product quality, effectively enhance productivity, save time cost, while ensure that the market requirement, there is larger economic worth, be worth marketing.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
A kind of real core macromolecule foaming building template, comprises following composition and respective massfraction:
The production method of this real core macromolecule foaming building template above, comprise batch mixing preparation, extrusion moulding and cooling step, finally enter traction, produce according to mould scale by required template length after traction, selection die size is 200mm × 15mm; Described extrusion moulding step is employing 65/132 type twin screw extruder, extrudes after adding thermalization; Heating temperature is: 170 DEG C, a district, 170 DEG C, 2nd district, 183 DEG C, 3rd district, 198 DEG C, 4th district, 190 DEG C, 5th district, merging core 147 DEG C.
Wherein, cooling step is for adopting electric-heating water cooling and shaping, and the template be specially through extruding enters stock mould dedicated water cooling water tank, stock mould and main frame mould counterpart, and both gaps are 5mm.
On the basis of the present embodiment PVC modified formula, in extrusion technical process, eliminate the technique of current production, use electrically heated expressed water cooling process, good product quality, effectively enhances productivity 10%, save time cost, while ensure that the market requirement, there is larger economic worth, be worth marketing.
Embodiment 2
A kind of real core macromolecule foaming building template, comprises following composition and respective massfraction:
The production method of this real core macromolecule foaming building template above, comprise batch mixing preparation, extrusion moulding and cooling step, finally enter traction, produce according to mould scale by required template length after traction, selection die size is 300mm × 15mm; Described extrusion moulding step is employing 65/132 type twin screw extruder, extrudes after adding thermalization; Heating temperature is: 170 DEG C, a district, 175 DEG C, 2nd district, 180 DEG C, 3rd district, 175 DEG C, 4th district, merging core 165 DEG C.
Wherein, cooling step is for adopting electric-heating water cooling and shaping, and the template be specially through extruding enters stock mould dedicated water cooling water tank, stock mould and main frame mould counterpart, and both gaps are 5mm.
On the basis of the present embodiment PVC modified formula, in extrusion technical process, eliminate the technique of current production, use electrically heated expressed water cooling process, good product quality, effectively enhances productivity 12%, save time cost, while ensure that the market requirement, there is larger economic worth, be worth marketing.
Embodiment 3
A kind of real core macromolecule foaming building template, comprises following composition and respective massfraction:
The production method of this real core macromolecule foaming building template above, comprise batch mixing preparation, extrusion moulding and cooling step, finally enter traction, produce according to mould scale by required template length after traction, selection die size is 450mm × 15mm; Described extrusion moulding step is employing 65/132 type twin screw extruder, extrudes after adding thermalization; Heating temperature is: 170 DEG C, a district, 175 DEG C, 2nd district, 180 DEG C, 3rd district, 175 DEG C, 4th district, merging core 165 DEG C.
Wherein, cooling step is for adopting electric-heating water cooling and shaping, and the template be specially through extruding enters stock mould dedicated water cooling water tank, stock mould and main frame mould counterpart, and both gaps are 5mm.
The present embodiment PVC modified formula effect is best, on this basis, in extrusion technical process, eliminate the technique of current production, use electrically heated expressed water cooling process, good product quality, effectively enhance productivity 15%, save time cost, while ensure that the market requirement, there is larger economic worth, be worth marketing.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. a real core macromolecule foaming building template, is characterized in that: comprise following composition and respective massfraction:
2. real core macromolecule foaming building template according to claim 1, is characterized in that: comprise following composition and respective massfraction:
3. real core macromolecule foaming building template according to claim 1, is characterized in that: described foaming stabiliser is HL-90; Foaming control agent is ZD-60.
4. real core macromolecule foaming building template according to claim 1, is characterized in that: described white whipping agent is Cellmic C 121; Yellow whipping agent is sodium bicarbonate.
5. the production method of a real core macromolecule foaming building template according to claim 1, comprise batch mixing preparation, extrusion moulding and cooling step, finally enter traction, produce according to mould scale by required template length after traction, it is characterized in that: described extrusion moulding step is employing 65/132 type twin screw extruder, extrudes after adding thermalization; Heating temperature is: 165 ~ 175 DEG C, a district, 165 ~ 175 DEG C, 2nd district, 180 ~ 185 DEG C, 3rd district, 195 ~ 200 DEG C, 4th district, 185 ~ 195 DEG C, 5th district, merging core 145 ~ 150 DEG C.
6. the production method of real core macromolecule foaming building template according to claim 5, it is characterized in that: described cooling step is for adopting electric-heating water cooling and shaping, the template be specially through extruding enters stock mould dedicated water cooling water tank, stock mould and main frame mould counterpart, both gaps are 2 ~ 7mm.
7. the production method of real core macromolecule foaming building template according to claim 6, is characterized in that: described stock mould and main frame mould gap are 5mm.
8. the production method of real core macromolecule foaming building template according to claim 5, is characterized in that: described die size is 200mm × 15mm, 245mm × 15mm, 300mm × 15mm, 450mm × 15mm, 600mm × 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051531.8A CN104592685A (en) | 2015-02-02 | 2015-02-02 | Solid-core polymer foaming building template and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051531.8A CN104592685A (en) | 2015-02-02 | 2015-02-02 | Solid-core polymer foaming building template and production method thereof |
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| CN104592685A true CN104592685A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510051531.8A Pending CN104592685A (en) | 2015-02-02 | 2015-02-02 | Solid-core polymer foaming building template and production method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107603061A (en) * | 2017-09-18 | 2018-01-19 | 湖北九发科技有限公司 | A kind of weather-proof natural composite material integrated wall plate and preparation method thereof |
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| Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107603061A (en) * | 2017-09-18 | 2018-01-19 | 湖北九发科技有限公司 | A kind of weather-proof natural composite material integrated wall plate and preparation method thereof |
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Application publication date: 20150506 |