CN217514710U - Fiber-reinforced thermoplastic insulation board - Google Patents
Fiber-reinforced thermoplastic insulation board Download PDFInfo
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- CN217514710U CN217514710U CN202221047139.8U CN202221047139U CN217514710U CN 217514710 U CN217514710 U CN 217514710U CN 202221047139 U CN202221047139 U CN 202221047139U CN 217514710 U CN217514710 U CN 217514710U
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Abstract
The utility model relates to a fiber reinforcement thermoplasticity heated board, fiber reinforcement thermoplasticity heated board includes two-layer fiber reinforcement thermoplasticity skin layer and presss from both sides two-layerly foam heat preservation between the skin layer, it is two-layer the skin layer with the foam heat preservation passes through hot melt adhesive layer hot melt adhesive and bonds together. The utility model discloses fibre reinforcement thermoplasticity heated board is formed by fibre reinforcement thermoplasticity covering and heated board through the hot melt adhesive layer bonding under a heating cooling system, and the heated board that obtains has assembled advantages such as the high impact resistance of thermoplasticity fiber reinforcement panel, low weight and the thermal-insulated heat preservation of heated board.
Description
Technical Field
The utility model belongs to the technical field of combined material, concretely relates to fiber reinforcement thermoplasticity heated board.
Background
The requirements of industries such as cold chain transportation and related buildings on the heat insulation performance of the heat insulation board and the impact resistance of the material are higher and higher, and in view of the fact that a fiber skin and foam bonding structure heat insulation board has appeared in the market before, the material has the performances of impact resistance, light weight, heat insulation and the like.
In recent years, with the rise of thermoplastic composite material industry, more and more fibers and thermoplastic resin are combined to prepare new products, fiber reinforced thermoplastic products have high impact strength and better mechanical comprehensive performance, and simultaneously have the characteristics of light weight, environmental friendliness and recyclability.
SUMMERY OF THE UTILITY MODEL
There is production efficiency low to current glue bonding heated board, bonding material with high costs, partial bonding material defect such as not environmental protection, the utility model provides a fibre reinforcing thermoplasticity heated board, its more environmental protection, and production efficiency is higher.
The utility model aims at providing a fibre reinforcement thermoplasticity heated board.
According to the utility model discloses a specific embodiment's fiber reinforcement thermoplasticity heated board, fiber reinforcement thermoplasticity heated board includes two-layer fiber reinforcement thermoplasticity skin layer and presss from both sides two-layerly foam insulation layer between the skin layer, it is two-layer the skin layer with bond together through hot melt adhesive layer hot melt between the foam insulation layer.
According to the utility model discloses a fiber reinforcement thermoplasticity heated board, it is further, the matrix resin of fiber reinforcement thermoplasticity skin layer is selected from any one in Polyethylene (PE), polypropylene (PP), Polycarbonate (PC), nylon (PA), polyethylene terephthalate (PET).
Furthermore, the fiber reinforced thermoplastic skin layer is formed by thermally compounding a plurality of fiber reinforced thermoplastic unidirectional tapes.
The fiber reinforced thermoplastic skin layer is formed by compounding an XY composite belt plate and a YX composite belt plate, the XY composite belt plate and the YX composite belt plate are both formed by compounding a plurality of fiber reinforced thermoplastic unidirectional belts, the upper layer of the XY composite belt plate is provided with a plurality of transverse fiber reinforced thermoplastic unidirectional belts, and the lower layer of the XY composite belt plate is provided with a plurality of longitudinal fiber reinforced thermoplastic unidirectional belts; the upper layer of the YX composite belt plate is provided with a plurality of longitudinal fiber reinforced thermoplastic unidirectional belts, and the lower layer is provided with a plurality of transverse fiber reinforced thermoplastic unidirectional belts.
The fiber reinforced thermoplastic skin layer can be an XY composite belt plate, or can be formed by compounding an upper XY composite belt plate and a lower YX composite belt plate (XYYX type); or an upper YX composite belt plate and a lower XY composite belt plate (YXXY type); it is also possible to have an upper YX composite belt board and a lower YXY composite belt board, or more layers, compounded as desired.
The upper surface of the skin can be provided with a decorative layer or an anti-UV aging layer, and the addition or non-addition is not limited.
Further, the fiber reinforced thermoplastic unidirectional tape is selected from any one of glass fiber reinforced thermoplastic unidirectional tapes, basalt fiber reinforced thermoplastic unidirectional tapes, aramid fiber reinforced thermoplastic unidirectional tapes and carbon fiber reinforced thermoplastic unidirectional tapes.
Furthermore, the lower surface of the fiber reinforced thermoplastic skin layer is provided with an interface layer for improving the bonding performance of the fiber reinforced thermoplastic skin layer, and the interface layer is arranged between the fiber reinforced thermoplastic skin layer 1 and the hot melt adhesive layer.
Further, the interface layer is made of PET non-woven fabric, glass fiber cloth or linen.
Further, the hot melt adhesive layer is selected from any one of EVA hot melt adhesive, TPU hot melt adhesive, PES hot melt adhesive, PA hot melt adhesive and PO hot melt adhesive.
Furthermore, the hot melt adhesive layer is a hot melt adhesive spraying layer or a hot melt adhesive net film. The hot melt adhesive layer is used for bonding the skin layer and the foam heat insulation layer together through hot melt compounding.
Further, the foam heat insulation layer is selected from one of PU foam, XPS extruded sheet, AEPS polymerized polystyrene board and PET foamed graphite board.
Furthermore, reinforcing ribs or reinforcing blocks are arranged in the foam heat-insulating layer.
Further, the reinforcing bars or blocks are made of wood, metal or plastic.
Further, the thickness of the fiber reinforced thermoplastic skin layer is 1.2-1.8 mm.
Preferably, the thickness of the fiber reinforced thermoplastic skin layer is 1.5mm, and the thickness of the heat insulation layer is 97 mm.
The utility model discloses a foam core of foam heat preservation need possess following characteristic:
1. when the selected foam core material is heated to the construction temperature of the hot melt adhesive layer, the foam core material is kept within 5min without large thermal aging or carbonization.
2. The variation quantity of the selected foam core material is kept less than or equal to 8 percent within 5min when the foam core material is heated to the construction temperature of the hot melt adhesive layer.
3. The selected foam core material has elasticity at normal temperature or at the construction temperature of the hot melt adhesive layer, and can rebound to at least 90 percent of the original size when the compression deformation is less than or equal to 8 percent.
The Aeps polymerized polystyrene board is a white solid with a fine closed pore structure, which is formed by heating expandable polystyrene beads containing a volatile liquid foaming agent in a mold after heating and pre-foaming. Characteristics of the Aeps polymerized polystyrene board: 1. a-level flame retardance: the AEPS polymerized polystyrene board overcomes the defect that the traditional EPS foam board is flammable, and in the production process, the flame retardant material becomes a honeycomb fireproof isolation bin through high-pressure cyclone stirring, extrusion and low-temperature foaming, so that the flame propagation is blocked, the ignition and the spread are avoided, the guarantee is provided for the engineering under the condition of flame, and the safety is very high. Completely reaches the A2 fire-proof standard specified by the ministry of public security. 2. Heat preservation and heat insulation: the AEPS polymerized polystyrene board has the advantages of low heat conductivity coefficient of the traditional organic heat-insulating material, and has better heat-insulating effect than common phenolic boards, foam boards and the like in the market. 3. The performance is excellent: the AEPS polymerized polystyrene board has a closed spherical molecular structure, has good dimensional stability and no toxicity, and does not generate water seepage cracks and generate the phenomena of bubbles, hollowing and falling off of a finish coat after repeated high temperature-water spraying circulation and heating-freezing circulation for a plurality of times. The A-grade fireproof heat-insulation board has better hydrophobicity than rock wool, higher strength than a phenolic aldehyde board, better toughness than foam glass, no water absorption, no powder removal, toughness and easy construction. 4. The cost performance is high: the AEPS polymerized polystyrene board keeps the advantages of low heat conductivity coefficient, good heat preservation effect and mature process of the traditional EPS foam, and has high cost performance and wide market prospect.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) compared with the prior glue bonding technology, the fiber reinforced thermoplastic insulation board is formed by bonding a fiber reinforced thermoplastic skin and an insulation board through a hot melt adhesive layer under a primary heating and cooling system, and the obtained insulation board integrates the advantages of high impact resistance, low weight, heat insulation and the like of a thermoplastic fiber reinforced board; the production process can be carried out by one-step molding, full-continuous production can be realized, the cost is greatly reduced, and the production efficiency is improved.
(2) Compared with the existing insulation board adopting a positive pressure or negative pressure bonding mode, the production process is environment-friendly, no pollution and no VOC (volatile organic compounds) emission are caused in the full-thermoplastic production, and the bonding cost is reduced by at least 50%.
(3) Because partial fibre reinforcement thermoplasticity covering is very easily crimping when low thickness, in use need reduce the warpage problem in the use through increasing thickness, the utility model discloses a continuous mode can effectively avoid the operation inconvenience that the warpage brought, successfully reduces covering thickness to greatly reduce the comprehensive cost of material.
(4) The utility model discloses fibre reinforcement thermoplasticity heated board has extremely low volatile substance in the follow-up use, and the use environmental protection, but covering recycle.
(5) The utility model discloses fibre reinforcement thermoplasticity heated board has high acid and alkali-resistance and salt spray corrosion resistance ability.
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 one of the schematic structural diagrams of the thermal insulation composite board according to embodiment 1 of the present invention;
fig. 2 is one of the schematic structural diagrams of the thermal insulation composite board according to embodiment 1 of the present invention.
Reference numerals
1-a skin layer; 2-an interfacial layer; 3-hot melt adhesive layer; 4-foam heat-insulating layer; and 5, reinforcing blocks.
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.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
As shown in fig. 1 and fig. 2, the embodiment provides a fiber reinforced thermoplastic insulation board, the fiber reinforced thermoplastic insulation board includes two layers of fiber reinforced thermoplastic skin layers 1 and a foam insulation layer 4 sandwiched between the two layers of the skin layers 1, and the two layers of the skin layers 1 and the foam insulation layer 4 are hot-melt bonded together through a hot-melt adhesive layer 3.
The object of the invention is further achieved by the following technical measures.
Further, the matrix resin of the fiber reinforced thermoplastic skin layer 1 is selected from any one of Polyethylene (PE), polypropylene (PP), Polycarbonate (PC), nylon (PA), and polyethylene terephthalate (PET).
More preferably, the fiber-reinforced thermoplastic skin layer 1 is formed by thermally compounding a plurality of fiber-reinforced thermoplastic unidirectional tapes.
The fiber reinforced thermoplastic skin layer is formed by compounding an XY composite belt plate and a YX composite belt plate, the XY composite belt plate and the YX composite belt plate are both formed by compounding a plurality of fiber reinforced thermoplastic unidirectional belts, the upper layer of the XY composite belt plate is provided with a plurality of transverse fiber reinforced thermoplastic unidirectional belts, and the lower layer of the XY composite belt plate is provided with a plurality of longitudinal fiber reinforced thermoplastic unidirectional belts; the upper layer of the YX composite belt plate is provided with a plurality of longitudinal fiber reinforced thermoplastic unidirectional belts, and the lower layer is provided with a plurality of transverse fiber reinforced thermoplastic unidirectional belts.
The fiber reinforced thermoplastic skin layer can be an XY composite belt plate, or can be formed by compounding an upper XY composite belt plate and a lower YX composite belt plate (XYYX type); or an upper YX composite belt plate and a lower XY composite belt plate (YXXY type); it is also possible to have an upper YX composite belt board and a lower YXY composite belt board, or more layers, compounded as desired.
The upper surface of the skin can be provided with a decorative layer or an anti-UV aging layer, and the addition or non-addition is not limited. Further, the fiber reinforced thermoplastic unidirectional tape is selected from any one of glass fiber reinforced thermoplastic unidirectional tapes, basalt fiber reinforced thermoplastic unidirectional tapes, aramid fiber reinforced thermoplastic unidirectional tapes and carbon fiber reinforced thermoplastic unidirectional tapes.
Further, the interface layer 2 for improving the bonding performance of the fiber reinforced thermoplastic skin layer 1 is arranged on the lower surface of the fiber reinforced thermoplastic skin layer 1.
Specifically, the interface layer 2 is made of PET non-woven fabric, glass fiber cloth, or hemp cloth.
Further, the hot melt adhesive layer 3 is selected from any one of an EVA hot melt adhesive, a TPU hot melt adhesive, a PES hot melt adhesive, a PA hot melt adhesive and a PO hot melt adhesive. The hot melt adhesive in this example was purchased from Guangdong Polymer petrochemistry, Ama-bar polymer materials, Inc. of Guangzhou or Shanghai Tianyang hot melt adhesive, Inc.
Furthermore, the hot melt adhesive layer 3 is a net film layer. The design of the net film layer can save the use amount of the hot melt adhesive, is more environment-friendly, and enables the fiber reinforced thermoplastic insulation board to be more convenient to produce, and the hot melt adhesive layer 3 can also be the hot melt adhesive sprayed by a spraying machine, so that the bonding is firmer.
Further, the foam heat insulation layer 4 is selected from one of PU foam, XPS extruded sheet, AEPS polymerized polystyrene board and PET foamed graphite board.
Further, as shown in fig. 1, the foam insulation layer 4 is provided with reinforcing ribs or reinforcing blocks 5.
Further, the reinforcing bars or blocks 5 are made of wood, metal or plastic.
The thickness of the skin layer 1 is 1.5mm (can be stated as any value in 1.2-1.8 mm), the skin layer 1 is polypropylene-based glass fiber reinforced thermoplastic composite material, the exposed surface is a white surface film, and the interface layer 2 on the other side is a PET-coated non-woven fabric.
The hot melt adhesive layer 3 is a modified EVA (ethylene-vinyl acetate copolymer) hot melt adhesive net film, the weight per unit area is 60 g/square meter, the construction temperature is 105 ℃, and the hot melt adhesive layer can be selected from any one of EVA hot melt adhesive, TPU hot melt adhesive, PES hot melt adhesive, PA hot melt adhesive and PO hot melt adhesive.
The foam heat-insulating layer 4 provides heat-insulating property, and polyurethane foam with the density of 40kg/m is selected in the embodiment 3 And the thickness is 97 mm.
Further, the matrix resin of the fiber reinforced thermoplastic skin layer 1 may be any one of Polyethylene (PE), polypropylene (PP), Polycarbonate (PC), nylon (PA), and polyethylene terephthalate (PET).
Further, the reinforcing fiber of the fiber reinforced thermoplastic skin layer 1 is selected from any one of glass fiber, basalt fiber, aramid fiber and carbon fiber.
Further, the lower surface of the fiber reinforced thermoplastic skin layer 1 is provided with an interface layer 2 for improving the bonding performance of the matrix resin of the skin layer 1, and the interface layer 2 is arranged between the fiber reinforced thermoplastic skin layer 1 and the hot melt adhesive layer.
Preferably, the interface layer 2 is made of PET non-woven fabric, glass fiber cloth, or hemp cloth.
Further, the foam heat insulation layer 4 is selected from one of PU foam, XPS extruded sheet, AEPS polymerized polystyrene board and PET foamed graphite board.
The utility model discloses a foam core of foam insulation layer 4 needs to possess following characteristic:
1. the selected foam core material is kept within 5min when heated to the construction temperature of the hot melt adhesive film without large thermal aging or carbonization.
2. The variation quantity of the selected foam core material is kept less than or equal to 8 percent within 5min when the foam core material is heated to the construction temperature of the hot melt adhesive film.
3. The selected foam core material has elasticity at normal temperature or at the construction temperature of the hot melt adhesive film, and can rebound to at least 90 percent of the original size when the compression deformation is less than or equal to 8 percent.
Furthermore, reinforcing ribs or reinforcing blocks 5 are arranged in the foam heat-insulating layer 4.
Preferably, the reinforcing bars or blocks 5 are made of wood, metal or plastic. The reinforcing blocks 5 in the foam heat-insulating layer 4 can be pre-embedded and bonded by glue or adhesive tape and the like.
The preparation method of the fiber reinforced thermoplastic unidirectional tape comprises the following steps:
i: unwinding a creel: putting the reinforced fiber spindle on a creel, and unreeling the reinforced fiber spindle to the same platform;
II: melt extrusion: melting and plasticizing the matrix resin at the temperature of 190-280 ℃ through an extruder, and extruding the matrix resin through a die to be uniformly coated on the reinforced fiber;
III: hot melting and dipping: the reinforcing fiber coated with the matrix resin is soaked on the glass fiber through a soaking mould, and the temperature is kept at 230-250 ℃;
IV: rolling: rolling and cooling, namely rolling the impregnated reinforced fibers into sheets;
v: cutting edges and rolling: and cutting edges and folding edges by edge cutting and edge folding equipment, and winding the edges into a strip to form the fiber reinforced thermoplastic unidirectional tape.
Further, the preparation method of the fiber reinforced thermoplastic skin layer comprises the following steps:
compounding a strip X and a strip Y: putting the unidirectional tape Y on a compound machine unreeling shaft at a longitudinal angle of 90 degrees, putting the unidirectional tape X with the cut pieces laid at a transverse angle of 0 degree into a compound host machine, heating to the temperature of 180 DEG and 230 ℃, cooling, cutting edges, and coiling to form a YX compound strip; putting the unidirectional tape X at 0 degree transversely on a unreeling shaft of a compound machine, putting the unidirectional tape Y after the cut pieces are laid at 90 degrees longitudinally into a compound host machine, heating to the temperature of 180 ℃ and 230 ℃, cooling, cutting edges, and coiling to form an XY compound tape;
XY and XY compounding: and respectively placing the YX composite strip and the XY composite strip on a unreeling shaft of a compound machine, putting the YX composite strip and the XY composite strip into a compound host, heating to the temperature of 180-.
The fiber reinforced thermoplastic skin layer can also be formed by compounding the upper XY composite belt plate and the lower YX composite belt plate (XYYX type); or an upper YX composite belt plate and a lower XY composite belt plate (YXXY type); it is also possible to have an upper YX composite belt board and a lower YXY composite belt board, or more layers, compounded as desired.
The preparation method of the fiber reinforced thermoplastic skin layer with the interface layer comprises the following steps: and (3) sequentially laying the secondary composite board obtained by XY and XY compounding and the interface layer together into a compounding host, heating to the temperature of 180-230 ℃, cooling, and cutting edges to form the fiber reinforced thermoplastic skin layer.
A method of making a fiber reinforced thermoplastic insulation board, the method comprising the steps of:
(1) continuously conveying the fiber reinforced thermoplastic skin material, the hot melt adhesive film and the foam core material to a primary heating and cooling system for hot melt compounding through a front-end unreeling device and a material paving and conveying device of a continuous production line to form a composite material;
in the hot melt compounding, the set temperature of the heating section is higher than the melting temperature of the hot melt adhesive and lower than the softening or carbonization temperature of the foam core material or the fiber reinforced thermoplastic skin material; the set temperature of the cooling shaping section is lower than the softening temperature of the hot melt adhesive film, and the temperature difference between the cooling shaping section and the heating section is more than or equal to 40 ℃;
the bonding area of the foam core material and the fiber reinforced thermoplastic skin material in the obtained composite material exceeds 70 percent. The resin content of the hot melt adhesive film in unit area needs to meet the requirement that the bonding area of the foam core material and the skin material can be effectively more than 70% after the hot melt adhesive film is heated and melted;
(2) cutting the composite material obtained in the step (1) into a fiber reinforced thermoplastic insulation board in a fixed length mode.
The fiber-reinforced hot-melt adhesive insulation board obtained in example 1 (insulation board thickness 40mm, insulation core material density 40 kg/m) 3 Foam polyurethane) and bonded glass fiber reinforced plastic insulation boards, bonded color steel plate insulation boards,
The bonded aluminum plate insulation panels were compared and the results are given in table 1 below:
TABLE 1 comparison of several insulation boards
As can be seen from the table above, the weight of the fiber-reinforced hot-melt adhesive insulation board skin obtained by the method is 1.4kg per square meter; the density of the heat-insulation board is lower than that of other heat-insulation boards, the density is 5.28kg per square meter, and the heat-insulation board has better acid and alkali corrosion resistance and better impact resistance.
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 (10)
1. The utility model provides a fiber reinforcement thermoplasticity heated board, its characterized in that, fiber reinforcement thermoplasticity heated board includes two-layer fiber reinforcement thermoplasticity skin layer and presss from both sides two-layerly foam insulation layer between the skin layer, it is two-layer the skin layer with through hot melt adhesive layer hot melt bonding together between the foam insulation layer.
2. The fiber reinforced thermoplastic insulation board of claim 1, wherein the fiber reinforced thermoplastic skin layer is thermally compounded from a plurality of fiber reinforced thermoplastic unidirectional tapes.
3. The fiber reinforced thermoplastic insulation board of claim 1, wherein the fiber reinforced thermoplastic unidirectional tape is selected from any one of a group consisting of a glass fiber reinforced thermoplastic unidirectional tape, a basalt fiber reinforced thermoplastic unidirectional tape, an aramid fiber reinforced thermoplastic unidirectional tape, and a carbon fiber reinforced thermoplastic unidirectional tape.
4. The fiber reinforced thermoplastic insulation board according to claim 1, wherein the lower surface of the fiber reinforced thermoplastic skin layer is provided with an interface layer for improving the bonding performance of the fiber reinforced thermoplastic skin layer, and the interface layer is arranged between the fiber reinforced thermoplastic skin layer and the hot melt adhesive layer.
5. The fiber reinforced thermoplastic thermal insulation board of claim 4, wherein the interface layer is made of PET non-woven fabric, glass fiber cloth or hemp cloth.
6. The fiber reinforced thermoplastic insulation board according to claim 1, wherein the hot melt adhesive layer is selected from any one of EVA hot melt adhesive, TPU hot melt adhesive, PES hot melt adhesive, PA hot melt adhesive and PO hot melt adhesive.
7. The fiber reinforced thermoplastic insulation board of claim 1 or 6, wherein the hot melt adhesive layer is a hot melt adhesive spray coating or a hot melt adhesive web.
8. The fiber reinforced thermoplastic insulation board of claim 1 or 5, wherein the foam insulation layer is selected from one of PU foam, XPS extruded sheet, AEPS polymerized polystyrene sheet, PET foamed graphite sheet.
9. The fiber reinforced thermoplastic insulation board according to claim 1, wherein reinforcing ribs or reinforcing blocks are arranged in the foam insulation layer; the reinforcing bars or blocks are made of wood, metal or plastic.
10. The fiber reinforced thermoplastic insulation board of claim 9, wherein the fiber reinforced thermoplastic skin layer is 1.5mm thick and the insulation layer is 97mm thick.
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| CN202221047139.8U CN217514710U (en) | 2022-04-29 | 2022-04-29 | Fiber-reinforced thermoplastic insulation board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953644A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Fiber-reinforced thermoplastic insulation board and preparation method thereof |
| CN114953481A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Production line of fiber-reinforced hot-melt bonding skin hot-melt bonding insulation board |
| WO2025195390A1 (en) * | 2024-03-19 | 2025-09-25 | 广东金发复合材料有限公司 | Battery pack sealing cover and power battery |
-
2022
- 2022-04-29 CN CN202221047139.8U patent/CN217514710U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953644A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Fiber-reinforced thermoplastic insulation board and preparation method thereof |
| CN114953481A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Production line of fiber-reinforced hot-melt bonding skin hot-melt bonding insulation board |
| WO2025195390A1 (en) * | 2024-03-19 | 2025-09-25 | 广东金发复合材料有限公司 | Battery pack sealing cover and power battery |
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