CN212171534U - Composite board - Google Patents
Composite board Download PDFInfo
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- CN212171534U CN212171534U CN201922127724.3U CN201922127724U CN212171534U CN 212171534 U CN212171534 U CN 212171534U CN 201922127724 U CN201922127724 U CN 201922127724U CN 212171534 U CN212171534 U CN 212171534U
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Abstract
The utility model belongs to the technical field of composite construction materials, concretely relates to composite board. The composite board of the utility model comprises a first surface layer, a middle layer and a second surface layer; the first surface layer, the middle layer and the second surface layer are sequentially stacked; the first surface layer and the second surface layer are composite material layers of glass fiber mats or glass fiber cloth and polyurethane, and the middle layer is a composite material layer of ceramsite and polyurethane. The utility model discloses a combined material layer makes the intensity weight ratio and the rigidity weight ratio of panel tend to the best. And a heat-insulating and sound-insulating material which can be used as a high-strength base material is manufactured on the premise of not increasing the cost.
Description
Technical Field
The utility model belongs to compound building materials field, concretely relates to composite board.
Background
The existing light foaming materials such as polyurethane insulation boards, EPS foaming insulation boards and the like have the structure shown in figure 1, and two layers of surface crusts are respectively arranged at the upper part and the lower part, and are usually single materials; the middle is filled with a single foaming material such as polyurethane or EPS. The foamed material is a cellular material having innumerable cells inside, and can also be considered as a composite material using gas as a filler, and is lightweight but inferior in strength and rigidity. With the development of society and the improvement of life of people, the requirements on building materials and decoration materials are higher and higher, and the foamed materials are expected to overcome the defects of sound insulation and heat insulation materials, so that the foamed materials have better performances of shock resistance, impact resistance and the like. The existing building material has single component, simple structure, poor integral strength and insufficient rigidity, and is only suitable for being used as a filling material. The existing sound insulation and heat preservation plates and the like are made of single solid materials and are difficult to completely meet the increasingly high use requirements of people on various performances such as weight, density, cost, strength, rigidity, surface touch and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a composite board. By changing the structure of the existing material, the integral strength and rigidity are enhanced, and the manufacturing cost is reduced.
The utility model discloses a realize through following technical scheme:
a composite board comprises a first surface layer, a middle layer and a second surface layer; the first surface layer, the middle layer and the second surface layer are sequentially stacked; the first surface layer and the second surface layer are respectively a composite material layer of glass fiber felt or glass fiber cloth and polyurethane, and the middle layer is a composite material layer of ceramsite and polyurethane.
Further, the mass ratio of the glass fiber felt or the glass fiber cloth to the polyurethane is as follows: 1:2 to 2: 1.
Further, the mass ratio of the ceramsite to the polyurethane is as follows: 1:5 to 1: 10.
Further, the grain size of the ceramsite is as follows: 5-20 mm.
Further, the intermediate layer also comprises a reinforcing structure; such as a keel, a glass fiber reinforced plastic grid, or a honeycomb material.
The composite board of the utility model is prepared by the following preparation method, and the steps comprise:
step 1, spraying or soaking a polyurethane raw material on a glass fiber felt or glass fiber cloth by using a polyurethane spraying machine; then placing the glass fiber felt or the glass fiber cloth in a mold;
step 2, laying at least one layer of ceramsite layer on the glass fiber felt or the glass fiber cloth in the step 1;
step 3, spraying or pouring a polyurethane raw material on the ceramsite layer obtained in the step 2 by using a polyurethane spraying machine or a polyurethane pouring machine to enable the polyurethane raw material to be completely filled in gaps among the ceramsite;
step 4, spraying or soaking the polyurethane raw material on the glass fiber felt or the glass fiber cloth, and then placing the glass fiber felt or the glass fiber cloth on the ceramsite obtained in the step 3;
and 5, pressing the die by using a press.
Further, in the step 1, the mass ratio of the glass fiber felt or the glass fiber cloth to the polyurethane is as follows: 1:2 to 2: 1.
Further, the grain size of the ceramsite in the step 2 is as follows: 5-20 mm.
Furthermore, the amount of the ceramsite used on each 1 square meter of the glass fiber mat or the glass fiber cloth in the step 2 is 10-35 kg.
Further, the step 2 also comprises the step of weaving a reinforcing structure among the ceramsite.
Further, the mass ratio of the ceramsite to the polyurethane in the step 3 is as follows: 1:5 to 1: 10.
The utility model discloses beneficial effect:
the utility model aims at utilizing the composite material layer according to the composite building material to lead the strength-weight ratio and the rigidity-weight ratio of the board to tend to be optimal. And a heat-insulating and sound-insulating material which can be used as a high-strength base material is manufactured on the premise of not obviously increasing the cost.
The polyurethane comprises the components of isocyanate and combined polyether, and the two materials can be mixed together to generate a chemical reaction, release heat in the reaction process and generate polyurethane after the reaction is finished. The polyurethane foams to a large volume during the reaction. The glass fiber felt is formed by a series of procedures such as twisting superfine glass fiber yarns to form glass fiber bundles, cutting the glass fiber bundles evenly, mixing the glass fiber bundles together, and then performing a series of procedures such as glue spraying, hot pressing and the like. The glass fiber felt has water absorption, liquid is very easy to spread on the glass fiber felt, polyurethane is sprayed on the glass fiber felt, polyurethane components can be dispersed on the glass fiber felt due to the characteristics of glass fiber materials, then reaction occurs, in the process, because a mold is arranged on one side, a supporting layer is arranged on the other side, and the direction of the volume increase of the polyurethane is basically along the surface of the glass fiber felt. The utility model discloses a top layer adopts the combined material layer of glass fiber felt or glass fiber cloth and polyurethane, and its benefit is in glass fiber felt or glass fiber cloth and polyurethane composite bed be a fine and close structural layer, has certain waterproof nature, and the polyurethane that this structural layer can protect the inside does not receive external impact with the haydite composite bed, under the circumstances of external atress, can disperse the power of outside to a certain extent. So the utility model discloses the combined material top layer that adopts is right the utility model discloses form a protective layer that has intensity.
The utility model discloses a combined material layer on haydite layer is added in the intermediate level adoption, makes the distribution of haydite dispersion in expanded material, has both borrowed the haydite and has made intermediate level rigidity, intensity increase, does not influence again give sound insulation, insulate against heat, has accomplished to compromise. And the ceramsite is easy to obtain and has low cost.
The utility model discloses can further increase reinforcing structure in the intermediate level, be applicable to in the environment that requires higher to rigidity, intensity.
Drawings
Fig. 1 is a schematic structural diagram of a lightweight foaming material in the prior art.
Fig. 2 is a schematic structural diagram of the composite board of the present invention.
Fig. 3 is a schematic structural diagram of an optimized scheme of the composite board of the present invention.
Reference numerals:
11. surface skinning; 12. an interlayer; 21. a first skin layer; 22. ceramsite; 23. a polyurethane; 24. a reinforcing structure; 25. a second skin layer.
Detailed Description
For better illustration of the technical solution of the present invention, the technical solution adopted and the beneficial effects achieved by the technical solution of the present invention are now further described with reference to the specific embodiments. It should be noted that the technical solutions of the present invention include, but are not limited to, the following embodiments.
The terms "first," "second," and the like in the present disclosure are used for descriptive convenience only and do not represent limitations on the position or order of particular structures in the present disclosure.
The directional limiting words such as "upper" and "lower" in the present invention are used only for convenience of description, and do not represent the limitation on the position or order of the specific structure in the present embodiment.
Example one
A composite board of the present embodiment includes a first surface layer 21, an intermediate layer, and a second surface layer 25; the first surface layer 21, the middle layer and the second surface layer 25 are sequentially stacked; the first surface layer 21 and the second surface layer 25 are composite material layers of glass fiber mats and polyurethane, and the middle layer is a composite material layer of ceramsite 22 and polyurethane 23.
The mass ratio of the glass fiber felt to the polyurethane is 1:2
The mass ratio of the ceramsite to the polyurethane is 1: 10;
the grain diameter of the ceramsite is 5 mm.
The preparation method of the composite board of the embodiment comprises the following steps:
step 1, spraying a polyurethane raw material on a glass fiber felt by using a polyurethane spraying machine; then placing the glass fiber felt in a mold;
step 2, placing 35 kg of ceramsite on the glass fiber mat in the step 1 in 4 layers;
step 3, a polyurethane spraying machine or a polyurethane pouring machine is used for pouring the polyurethane raw material on the ceramsite obtained in the step 2;
step 4, spraying a polyurethane raw material on the glass fiber mat by taking another glass fiber mat or glass fiber cloth, and then placing the glass fiber mat on the ceramic particle layer obtained in the step 3;
and 5, pressing the die by using a press.
Example two
A composite board of the present embodiment includes a first surface layer 21, an intermediate layer, and a second surface layer 25; the first surface layer 21, the middle layer and the second surface layer 25 are sequentially stacked; the first surface layer 21 and the second surface layer 25 are composite material layers of glass fiber cloth and polyurethane, and the middle layer is a composite material layer of ceramsite 22 and polyurethane 23.
The mass ratio of the glass fiber cloth to the polyamide polyurethane is 2: 1;
the mass ratio of the ceramsite to the polyurethane is 1: 8;
the grain size of the ceramsite is 12 mm.
The preparation method of the composite board of the embodiment comprises the following steps:
step 1, spraying a polyamide polyurethane raw material on glass fiber cloth by using a polyurethane spraying machine; then placing the glass fiber cloth in a mold;
step 2, placing 10 kilograms of ceramsite on the glass fiber cloth in the step 1 in 2 layers;
step 3, spraying or pouring the polyurethane raw material on the ceramsite in the step 2 by using a polyurethane spraying machine or a polyurethane pouring machine;
step 4, additionally taking glass fiber cloth, spraying the polyurethane raw material on the glass fiber cloth, and then placing the glass fiber cloth on the ceramsite obtained in the step 3;
and 5, pressing the die by using a press.
EXAMPLE III
A composite board of the present embodiment includes a first surface layer 21, an intermediate layer, and a second surface layer 25; the first surface layer 21, the middle layer and the second surface layer 25 are sequentially stacked; the first surface layer 21 and the second surface layer 25 are composite material layers of glass fiber cloth and polyurethane, and the middle layer is a composite material layer of ceramsite 22 and foaming material polyurethane 23.
The mass ratio of the glass fiber to the polyurethane is 1: 1;
the mass ratio of the ceramsite to the polyurethane is 1: 5;
the grain diameter of the ceramsite is 20 mm.
The preparation method of the composite board of the embodiment comprises the following steps:
step 1, spraying a polyurethane raw material on glass fiber cloth by using a polyurethane spraying machine; then placing the glass fiber cloth in a mold;
step 2, placing 25 kg of ceramsite on the glass fiber cloth in 3 layers in the step 1;
step 3, spraying or pouring the polyurethane raw material on the ceramic particle layer obtained in the step 2 by using a polyurethane spraying machine or a polyurethane pouring machine;
step 4, spraying a polyurethane raw material on or on another glass fiber cloth, and then placing the glass fiber cloth on the ceramic particle layer obtained in the step 3;
and 5, pressing the die by using a press.
Comparative example 1
A composite board comprises a surface crust 11 and an interlayer 12 which are arranged up and down; the interlayer 12 is positioned between the surface crusts 11 which are arranged up and down; the surface crust 11 is made of glass fiber, and the interlayer is made of polyurethane.
Comparative example No. two
A composite board comprises a surface crust 11 and an interlayer 12 which are arranged up and down; the interlayer 12 is positioned between the surface crusts 11 which are arranged up and down; the surface crust 11 is made of glass fiber, and the interlayer is a composite material layer formed by compounding polyurethane and ceramsite according to the mass ratio of 1: 10.
Comparative example No. three
A composite board comprises a surface crust 11 and an interlayer 12 which are arranged up and down; the interlayer 12 is positioned between the surface crusts 11 which are arranged up and down; the surface crust 11 is a composite material layer compounded by glass fiber and polyurethane according to the mass ratio of 2:1, and the interlayer is polyurethane.
The results of the performance of the sheets of comparative examples one, two, three, one, two and three show that the performance indexes of examples one, two and three are almost the same, but the strength and rigidity of the sheets of comparative examples one, two and three are better.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (3)
1. A composite board comprises a first surface layer, a middle layer and a second surface layer; the composite board is characterized in that the first surface layer and the second surface layer of the composite board are respectively a composite material layer of glass fiber felt or glass fiber cloth and polyurethane, and the middle layer is a composite material layer of ceramsite and polyurethane.
2. The composite panel according to claim 1, wherein the intermediate layer further comprises a reinforcing structure therein; the reinforcing structure comprises a keel, a glass fiber reinforced plastic grid or a honeycomb material.
3. The composite board as claimed in claim 1 or 2, wherein the ceramsite has a particle size of: 5-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922127724.3U CN212171534U (en) | 2019-12-03 | 2019-12-03 | Composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922127724.3U CN212171534U (en) | 2019-12-03 | 2019-12-03 | Composite board |
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| Publication Number | Publication Date |
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| CN212171534U true CN212171534U (en) | 2020-12-18 |
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| CN201922127724.3U Active CN212171534U (en) | 2019-12-03 | 2019-12-03 | Composite board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978678A (en) * | 2019-12-03 | 2020-04-10 | 广州汉唐住宅集成科技有限公司 | Composite board and preparation method thereof |
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2019
- 2019-12-03 CN CN201922127724.3U patent/CN212171534U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978678A (en) * | 2019-12-03 | 2020-04-10 | 广州汉唐住宅集成科技有限公司 | Composite board and preparation method thereof |
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Effective date of registration: 20220615 Address after: 511300 Building 5, No. 2, Gongye 1st Road, Ningxi street, Zengcheng District, Guangzhou City, Guangdong Province Patentee after: Guangdong SenMei construction engineering new material Co.,Ltd. Address before: 511495 Room 101, No. 168-2, Weiyong Renmin Road, Weiyong village, Shibi street, Panyu District, Guangzhou City, Guangdong Province (self declaration) Patentee before: Guangzhou Hantang housing integrated technology Co.,Ltd. |
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