CN210821290U - Flame-retardant high-strength GMT composite board - Google Patents
Flame-retardant high-strength GMT composite board Download PDFInfo
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- CN210821290U CN210821290U CN201921110778.2U CN201921110778U CN210821290U CN 210821290 U CN210821290 U CN 210821290U CN 201921110778 U CN201921110778 U CN 201921110778U CN 210821290 U CN210821290 U CN 210821290U
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Abstract
The utility model discloses a flame-retardant high-strength GMT composite board, which comprises a lower flame-retardant outer board, an inner reinforcing board and an upper flame-retardant outer board which are arranged in parallel from bottom to top in sequence; the upper flame-retardant outer plate and the lower flame-retardant outer plate are both foamed GMT plates mixed with organic silicon flame retardants, and the thickness ratio of the upper flame-retardant outer plate to the lower flame-retardant outer plate to the inner reinforcing plate is 1: 1: 1; and the front surface and the back surface of the inner reinforcing plate are respectively provided with an anti-fracture layer. Has the advantages that: the double-layer GMT flame-retardant plate is matched with the polyurethane inner reinforcing plate arranged in the middle, so that the structural strength of the plate can be improved, and the flame retardance and the sound insulation of the plate are improved; the flame-retardant non-woven fabric layer is arranged between the flame-retardant outer plate and the inner reinforcing plate, so that the structural strength of the plate can be further improved; the polyester fiber board is arranged on the surface of the board, so that the flatness of the outer surface of the board can be improved, and the board is good in flame retardance.
Description
Technical Field
The utility model relates to a polymer composite technical field, concretely relates to fire-retardant GMT composite board that excels in.
Background
GMT (glass mat) is a light glass fiber mat reinforced thermoplastic composite board, has the advantages of personal attraction, good toughness, good corrosion resistance and the like, and is widely applied and developed in the current automotive interior materials. The existing GMT has poor flame retardance and is difficult to meet the flame retardant requirement in an automobile, and the existing processing mode is that a flame retardant is added into raw materials during GMT production, but after the flame retardant is added, the strength of a plate is reduced, and the use requirement is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fire-retardant GMT composite board that excels in order to solve above-mentioned problem, the utility model provides an among a great deal of technical scheme preferred technical scheme have: through the multilayer composite structure, the GMT flame retardance is enhanced, and meanwhile, the technical effects of improving the structural strength and the like of the plate are described in detail below.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a flame-retardant high-strength GMT composite board, which comprises a lower flame-retardant outer board, an inner reinforcing board and an upper flame-retardant outer board which are arranged in parallel from bottom to top in sequence; the upper flame-retardant outer plate and the lower flame-retardant outer plate are both foamed GMT plates mixed with organic silicon flame retardants, and the thickness ratio of the upper flame-retardant outer plate to the lower flame-retardant outer plate to the inner reinforcing plate is 1: 1: 1;
and the front surface and the back surface of the inner reinforcing plate are respectively provided with an anti-fracture layer.
Preferably, the fracture prevention layers are an upper non-woven fabric layer arranged above the inner reinforcing plate and a lower non-woven fabric layer arranged below the inner reinforcing plate respectively;
wherein, the upper non-woven fabric layer and the lower non-woven fabric layer are both made of non-woven fabrics mixed with brominated flame retardants.
Preferably, the inner reinforcing plate is a polyurethane plate and is a polyurethane rigid foam plate.
Preferably, the surface of the upper flame-retardant outer plate is provided with an upper polyester fiber plate, the surface of the lower flame-retardant outer plate is provided with a lower polyester fiber plate, and the thickness of the upper polyester fiber plate is consistent with that of the lower polyester fiber plate and is half of that of the lower flame-retardant outer plate.
Preferably, the lower flame-retardant outer plate, the inner reinforcing plate and the upper flame-retardant outer plate are formed by die pressing and compounding.
To sum up, the utility model has the advantages that: 1. the double-layer GMT flame-retardant plate is matched with the polyurethane inner reinforcing plate arranged in the middle, so that the structural strength of the plate can be improved, and the flame retardance and the sound insulation of the plate are improved;
2. the flame-retardant non-woven fabric layer is arranged between the flame-retardant outer plate and the inner reinforcing plate, so that the structural strength of the plate can be further improved;
3. the polyester fiber board is arranged on the surface of the board, so that the flatness of the outer surface of the board can be improved, and the board is good in flame retardance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
The reference numerals are explained below:
1. a lower polyester fiber board; 2. a lower flame retardant outer panel; 3. a lower non-woven fabric layer; 4. an inner reinforcing plate; 5. a non-woven fabric layer is arranged; 6. an upper flame-retardant outer plate; 7. and (4) arranging a polyester fiber board.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a flame-retardant high-strength GMT composite board, which comprises a lower flame-retardant outer board 2, an inner reinforcing board 4 and an upper flame-retardant outer board 6 which are arranged in parallel from bottom to top; the upper flame-retardant outer plate 6 and the lower flame-retardant outer plate 2 are both foamed GMT plates mixed with organic silicon flame retardants, the foamed GMT plates are good in flame retardance and good in sound insulation and heat insulation performance, and the thickness ratio of the upper flame-retardant outer plate 6 to the lower flame-retardant outer plate 2 to the inner reinforcing plate 4 is 1: 1: 1, and all are 1 mm; the front surface and the back surface of the inner reinforcing plate 4 are respectively provided with a fracture prevention layer, and the fracture prevention layers are respectively an upper non-woven fabric layer 5 arranged above the inner reinforcing plate 4 and a lower non-woven fabric layer 3 arranged below the inner reinforcing plate 4; the upper non-woven fabric layer 5 and the lower non-woven fabric layer are both made of non-woven fabrics mixed with brominated flame retardants, and the upper non-woven fabric layer 5 and the lower non-woven fabric layer 3 which are flame retardant are respectively arranged on the upper surface and the lower surface of the inner reinforcing plate 4, so that the bending resistance of the inner reinforcing plate 4 can be improved when the plate is stressed and bent, and the inner reinforcing plate 4 is prevented from being broken.
The foamed GMT plate is prepared by the following method: adding ethanol into the organic silicon precursor to prepare an organic silicon precursor solution with the concentration of 30-40 wt%; adding a halogen-free flame retardant, a microsphere foaming agent and a curing agent into the organic silicon precursor solution, and stirring at the rotating speed of 100-400rmp for 20-40min to obtain a uniform mixed solution; soaking a felt composed of 30 wt% of PP and 70 wt% of glass fiber into the mixed solution prepared in the step for 5-10min, and then centrifuging for 5-10min at the rotating speed of 400-700rmp, wherein PP is a bonding matrix, and the glass fiber is a reinforcing material; solidifying the centrifuged felt at 60-90 ℃ for 2-4h, and then foaming at 150-250 ℃ for 10-30 min; and carrying out compression molding on the foamed felt to obtain the foamed GMT plate. The organic silicon precursor solution not only can be used as a matrix for dispersing the halogen-free flame retardant, but also can show a synergistic flame retardant effect with the halogen-free flame retardant; in addition, the organic silicon precursor solution can form a cross-linked network structure in the felt after being cured, and the GMT plate is endowed with stronger mechanical property after hot press molding.
As an optional implementation manner, the inner reinforcing plate 4 is a polyurethane plate and is a polyurethane rigid foam plate, the polyurethane plate has good tensile property and structural strength, the structural strength of the plate can be enhanced, and by adopting the polyurethane rigid foam plate, the heat insulation and sound insulation properties of the plate can be further improved, and the use effect of the plate is improved;
the surface of the upper flame-retardant outer plate 6 is provided with an upper polyester fiber plate 7, the surface of the lower flame-retardant outer plate 2 is provided with a lower polyester fiber plate 1, the thickness of the upper polyester fiber plate 7 is consistent with that of the lower polyester fiber plate 1, the thickness of the upper polyester fiber plate is half of that of the lower flame-retardant outer plate 2 and is 0.5mm, the upper flame-retardant outer plate 6 and the lower flame-retardant outer plate 2 are foamed by an organic silicon flame retardant in a relaxation mode, the surface flatness is poor, the flatness of the surface of the plate can be improved by arranging the upper polyester fiber plate 7 and the lower polyester fiber plate 1 as the surface layers of the plate, and the appearance effect;
the lower flame-retardant outer plate 2, the inner reinforcing plate 4 and the upper flame-retardant outer plate 6 are formed by die pressing and compounding.
The double-layer GMT flame-retardant plate is matched with the polyurethane inner reinforcing plate 4 arranged in the middle, so that the structural strength of the plate can be improved, and the flame retardance and the sound insulation of the plate are improved; the structural strength of the board can be further improved by arranging the flame-retardant non-woven fabric layer between the flame-retardant outer board and the inner reinforcing board 4; the polyester fiber board is arranged on the surface of the board, so that the flatness of the outer surface of the board can be improved, and the board is good in flame retardance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The flame-retardant high-strength GMT composite board is characterized by comprising a lower flame-retardant outer board (2), an inner reinforcing board (4) and an upper flame-retardant outer board (6) which are sequentially arranged in parallel from bottom to top; wherein the upper flame-retardant outer plate (6) and the lower flame-retardant outer plate (2) are both foamed GMT plates mixed with an organic silicon flame retardant, and the thickness ratio of the upper flame-retardant outer plate (6) to the lower flame-retardant outer plate (2) to the inner reinforcing plate (4) is 1: 1: 1;
the front surface and the back surface of the inner reinforcing plate (4) are respectively provided with an anti-fracture layer.
2. The flame-retardant high-strength GMT composite board according to claim 1, characterized in that: the anti-fracture layer is an upper non-woven fabric layer (5) arranged above the inner reinforcing plate (4) and a lower non-woven fabric layer (3) arranged below the inner reinforcing plate (4) respectively;
wherein, the upper non-woven fabric layer (5) and the lower non-woven fabric layer are both made of non-woven fabrics mixed with brominated flame retardants.
3. The flame-retardant high-strength GMT composite board according to claim 1, characterized in that: the inner reinforcing plate (4) is a polyurethane plate and is a polyurethane rigid foam plate.
4. The flame-retardant high-strength GMT composite board according to claim 1, characterized in that: the surface of the upper flame-retardant outer plate (6) is provided with an upper polyester fiber plate (7), the surface of the lower flame-retardant outer plate (2) is provided with a lower polyester fiber plate (1), and the thickness of the upper polyester fiber plate (7) is consistent with that of the lower polyester fiber plate (1) and is half of that of the lower flame-retardant outer plate (2).
5. The flame-retardant high-strength GMT composite board according to claim 1, characterized in that: the lower flame-retardant outer plate (2), the inner reinforcing plate (4) and the upper flame-retardant outer plate (6) are formed by die pressing and compounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110778.2U CN210821290U (en) | 2019-07-16 | 2019-07-16 | Flame-retardant high-strength GMT composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110778.2U CN210821290U (en) | 2019-07-16 | 2019-07-16 | Flame-retardant high-strength GMT composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210821290U true CN210821290U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921110778.2U Active CN210821290U (en) | 2019-07-16 | 2019-07-16 | Flame-retardant high-strength GMT composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210821290U (en) |
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2019
- 2019-07-16 CN CN201921110778.2U patent/CN210821290U/en active Active
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