CN115058098A - Preparation method of light porous composite sandwich material wall - Google Patents
Preparation method of light porous composite sandwich material wall Download PDFInfo
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- CN115058098A CN115058098A CN202210901799.6A CN202210901799A CN115058098A CN 115058098 A CN115058098 A CN 115058098A CN 202210901799 A CN202210901799 A CN 202210901799A CN 115058098 A CN115058098 A CN 115058098A
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- porous composite
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 37
- 239000011324 bead Substances 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000003822 epoxy resin Substances 0.000 claims abstract description 16
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 239000012745 toughening agent Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 7
- 239000004005 microsphere Substances 0.000 claims description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 5
- 239000006227 byproduct Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 238000005034 decoration Methods 0.000 abstract description 5
- 239000011162 core material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Acoustics & Sound (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the field of building decoration materials, in particular to a preparation method of a light porous composite sandwich material wall. The sandwich material wall panel is prepared by taking hollow glass beads and an epoxy resin matrix porous composite material as core materials, taking thin-wall aluminum alloy as a panel and using a high-strength green environment-friendly adhesive under high pressure. The specific technical scheme of the invention comprises the following steps: (1) and (4) pretreating the hollow glass beads. And mixing the cleaned and deoiled hollow glass beads with absolute ethyl alcohol, deionized water and a silane coupling agent to obtain a treatment solution, performing ultrasonic treatment, and drying. (2) And (3) preparing the porous composite material. Mixing and stirring the heated epoxy resin and the hollow glass beads, adding the foam reducing agent and the toughening agent, uniformly mixing, adding the curing agent, rapidly and uniformly stirring again, injecting into a mold, curing and demolding. (3) And (5) manufacturing a light wall. Bonding the porous composite material and the thin aluminum alloy plate into a whole by using a strong adhesive, and drying to obtain the light wall material.
Description
Technical Field
The invention relates to the field of building decoration materials, in particular to a preparation method of a light porous composite sandwich material wall.
Background
The building decoration partition wall is generally in the form of an internal light steel keel, an outer cover gypsum panel and sound insulation materials such as asbestos or polystyrene board, and has the defects of multiple material types, complex structure, complicated construction, great environmental pollution and the like. With the rapid development of science and technology, the demand for novel decorative materials with light weight, high strength and integrated structure and function is rapidly increased, and the porous composite foam plastic material as a high-quality core material also becomes a research hotspot. Hollow glass beads are an industrial byproduct, and the application of the hollow glass beads is gradually increased along with the development of science and technology, wherein the hollow glass beads are the most applied type as light filling materials. Epoxy resin is a common organic material, is commonly used for high-end terraces in the field of building decoration, has excellent chemical properties of water resistance, oil stain resistance, chemical corrosion resistance and the like, and has the characteristics of good adhesive force, high mechanical strength, low shrinkage rate of a cured paint film and the like. The aluminum alloy section bar has wide application range in the field of architectural decoration, especially the honeycomb aluminum partition wall material appearing in recent years leads the market by the excellent appearance, but the aluminum section bar has larger internal cavity and poorer heat insulation performance. If hollow glass beads, epoxy resin and aluminum alloy profiles are combined, a novel partition wall material is developed, the advantages of various materials are brought into play, and great development potential is certainly achieved.
Disclosure of Invention
The invention aims to provide a preparation method of a light porous composite sandwich material wall, which is a sandwich material wall plate prepared by taking hollow glass beads and an epoxy resin matrix porous composite material as core materials, taking thin-wall aluminum alloy as a panel and using a high-strength green environment-friendly adhesive under high pressure.
The specific technical scheme of the invention is as follows.
The preparation method of the light porous composite sandwich material wall is characterized by comprising the following steps.
And 2, preparing the porous composite material. Respectively putting the epoxy resin and the hollow glass beads into a water bath or a drying oven for heating, then slowly adding the hollow glass beads into the epoxy resin, adding the foam reducing agent and the toughening agent in the stirring process, adding the curing agent after the materials are uniformly mixed, quickly stirring uniformly again, injecting into a mold, curing at room temperature and demolding.
And 3, manufacturing the light wall. The porous composite material is cut into proper size according to the requirement, the porous composite material and the thin aluminum alloy plate are bonded into a whole by using a strong adhesive, and the light wall material can be prepared after the porous composite material is dried.
Furthermore, the hollow glass beads are industrial byproducts and are low in price.
Further, the drying temperature of the hollow glass beads is 120 ℃, and the drying time is not less than 2 h.
Further, the mass ratio of the absolute ethyl alcohol to the deionized water is 9: 1.
further, the processing time of the ultrasonic vibration exciter is not less than 60 min.
Further, the temperature of the water bath kettle or the drying oven for heating is not lower than 60 ℃, and the heating time is not less than 10 min.
Furthermore, the reactor and the die used for preparation are all plastic products, a mechanical stirring mode is adopted, and the stirring rod is made of a non-metal material.
Further, the strong binder is a non-formaldehyde containing material.
The invention also provides a light porous composite sandwich material wall material, which is prepared by the preparation method of the light porous composite sandwich material wall.
Compared with the prior art, the invention has the beneficial effects of.
A method for preparing light porous composite sandwich material wall body uses industrial by-product hollow glass beads as filling material, green and environment-friendly epoxy resin as base material, and includes adding glass beads with different grain sizes and proportions and various modifiers into the epoxy resin, curing at normal temperature through curing agent cementation, preparing light porous composite material, using the light porous composite material as sandwich material, coating aluminum alloy plate outside, and bonding the light porous composite material into the light wall body material through high-pressure bonding by using high-strength formaldehyde-free adhesive. The wall material has the characteristics of light weight, high strength, heat preservation, heat insulation, energy conservation, environmental protection, metal special appearance and the like, and can be customized in a whole house and cut and assembled on site.
Drawings
FIG. 1 is a structural unit diagram of a core material of the lightweight porous composite sandwich material wall body.
FIG. 2 is a cross-sectional view of the wall structure of the lightweight porous composite sandwich material of the invention.
In the figure: 1-hollow glass beads 2-epoxy resin 3-hollow glass beads 4 with different grain diameters, beads 5 embedded in damaged hollow glass beads, aluminum alloy panels 6-high-strength adhesive 7-light porous composite sandwich material.
Detailed Description
In order to make the purpose and technical solution of the present invention more clear, the following describes the implementation of the present invention. The embodiments described herein are part of the embodiments of the present invention, and not all embodiments. Other embodiments obtained based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1.
The preparation method of the light porous composite sandwich material wall is characterized by comprising the following steps.
Cleaning and deoiling the hollow glass beads by using absolute ethyl alcohol, and then drying in an oven at 120 ℃ for 4 hours; preparing a solution from absolute ethyl alcohol and deionized water according to the mass ratio of 9: 1, adding a silane coupling agent with the mass ratio of glass beads set according to the proportioning scheme, pouring the treatment solution into a beaker filled with hollow glass beads, treating the treatment solution by using an ultrasonic exciter for 60min, filtering the treatment solution, drying the treatment solution in a drying oven at 120 ℃ for 4h, naturally cooling the drying solution to room temperature, and bottling the drying solution for later use.
Putting the container containing the epoxy resin into a water bath at 60 ℃ until the epoxy resin is completely diluted; meanwhile, putting the hollow glass beads into a drying oven, heating to 60 ℃, keeping the temperature for at least 10min, slowly adding the preheated hollow glass beads into epoxy resin, uniformly stirring by using a wooden stirring rod, and adding a foam reducing agent and a toughening agent in the process; and adding a curing agent into the uniform mixture, quickly and uniformly stirring, then pouring into a polyethylene plastic mould, curing at room temperature for 24 hours, and demoulding to obtain the porous composite material. According to different material proportioning schemes, porous composite materials with various densities can be prepared.
TABLE 1 proportioning scheme of materials
The prepared porous composite material is made into various test pieces for testing mechanical property and heat insulation property. And determining the proper material mixing ratio according to engineering requirements.
Example 2.
The preparation method of the light porous composite sandwich material wall is characterized by comprising the following steps.
A porous composite (example 1) was prepared.
Cutting the porous composite material into 1000mm multiplied by 1000mm, bonding the porous composite material with 1.5mm aluminum alloy sheet by using epoxy resin and modified curing agent (AB glue), and curing and drying for 24h under the pressure of 0.1 MPa.
The prepared lightweight porous composite sandwich material wall panel is manufactured into various test pieces for testing mechanical property and heat insulation property so as to be convenient for engineering design and selection.
Claims (8)
1. The preparation method of the light porous composite sandwich material wall is characterized by comprising the following steps:
step 1, pretreating hollow glass microspheres, namely cleaning the hollow glass microspheres with absolute ethyl alcohol to remove oil, then putting the hollow glass microspheres into an oven for drying, preparing a solution and a silane coupling agent by using the absolute ethyl alcohol and deionized water, stirring the solution and the silane coupling agent uniformly to form a coupling agent treatment solution, pouring the coupling agent treatment solution into a container containing the hollow glass microspheres, treating the coupling agent treatment solution by using an ultrasonic exciter, filtering the coupling agent treatment solution, putting the hollow glass microspheres into the oven for drying, and naturally cooling the hollow glass microspheres to room temperature;
step 2, preparing the porous composite material, namely respectively putting the epoxy resin and the hollow glass beads into a water bath or a drying box for heating, then slowly adding the hollow glass beads into the epoxy resin, adding the foam reducing agent and the toughening agent in the stirring process, adding the curing agent after the materials are uniformly mixed, quickly and uniformly stirring again, injecting into a mold, curing at room temperature and demolding;
and 3, manufacturing the light wall body, cutting the porous composite material into a proper size according to the requirement, bonding the porous composite material and the thin aluminum alloy plate into a whole by using a strong adhesive, and drying the porous composite material to obtain the light wall body material.
2. The method for preparing the light porous composite sandwich material wall body according to claim 1, wherein in the step 1, the hollow glass beads are industrial byproducts, and have nonuniform particles and high randomness.
3. The preparation method of the light porous composite sandwich material wall body of claim 1 is characterized in that in the step 1, the drying temperature of the hollow glass beads is 120 ℃, and the drying time is not less than 2 hours.
4. The preparation method of the light porous composite sandwich material wall body according to claim 1 is characterized in that in the step 1, absolute ethyl alcohol and deionized water are mixed according to a mass ratio of 9: 1.
5. the preparation method of the light porous composite sandwich material wall body according to claim 1 is characterized in that in the step 1, the treatment time of an ultrasonic vibration exciter is not less than 60 min.
6. A preparation method of a wall body made of the light porous composite sandwich material as claimed in claim 1 is characterized in that in the step 2, the temperature of a water bath kettle or a drying oven is not lower than 60 ℃, and the heating time is not less than 10 min.
7. A method for preparing a wall body with the light porous composite sandwich material as claimed in claim 1 is characterized in that in the step 2, a reactor and a mould used for preparation are all plastic products, a mechanical stirring mode is adopted, and a stirring rod is made of a non-metal material.
8. A method for preparing a wall body by using the light porous composite sandwich material as claimed in claim 1, wherein in the step 3, the strong adhesive is a non-formaldehyde-containing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901799.6A CN115058098A (en) | 2022-07-28 | 2022-07-28 | Preparation method of light porous composite sandwich material wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901799.6A CN115058098A (en) | 2022-07-28 | 2022-07-28 | Preparation method of light porous composite sandwich material wall |
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| Publication Number | Publication Date |
|---|---|
| CN115058098A true CN115058098A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210901799.6A Pending CN115058098A (en) | 2022-07-28 | 2022-07-28 | Preparation method of light porous composite sandwich material wall |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002012678A (en) * | 2000-04-24 | 2002-01-15 | Sekisui Chem Co Ltd | Fireproof sheet and fireproof structural steelwork and fireproof structural wall using the same |
| CN102295822A (en) * | 2011-06-29 | 2011-12-28 | 陕西理工学院 | Fly ash energy saving and environmental protection composite sheet material and manufacture method thereof |
| CN103707590A (en) * | 2013-12-26 | 2014-04-09 | 青岛海洋新材料科技有限公司 | Buoyancy material with composite sandwich damping structure and preparation technology of material |
| CN106703317A (en) * | 2015-11-13 | 2017-05-24 | 张荣生 | External wall heat-preserved thermal-insulated fire-prevented composite decorating board |
-
2022
- 2022-07-28 CN CN202210901799.6A patent/CN115058098A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002012678A (en) * | 2000-04-24 | 2002-01-15 | Sekisui Chem Co Ltd | Fireproof sheet and fireproof structural steelwork and fireproof structural wall using the same |
| CN102295822A (en) * | 2011-06-29 | 2011-12-28 | 陕西理工学院 | Fly ash energy saving and environmental protection composite sheet material and manufacture method thereof |
| CN103707590A (en) * | 2013-12-26 | 2014-04-09 | 青岛海洋新材料科技有限公司 | Buoyancy material with composite sandwich damping structure and preparation technology of material |
| CN106703317A (en) * | 2015-11-13 | 2017-05-24 | 张荣生 | External wall heat-preserved thermal-insulated fire-prevented composite decorating board |
Non-Patent Citations (1)
| Title |
|---|
| 李慧剑等: ""空心玻璃微珠填充环氧树脂复合材料力学性能试验研究"", 《燕山大学学》, vol. 35, no. 1, pages 46 - 51 * |
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