CN216039364U - Polyolefin film for composite material molding - Google Patents
Polyolefin film for composite material molding Download PDFInfo
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- CN216039364U CN216039364U CN202022981252.0U CN202022981252U CN216039364U CN 216039364 U CN216039364 U CN 216039364U CN 202022981252 U CN202022981252 U CN 202022981252U CN 216039364 U CN216039364 U CN 216039364U
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Abstract
The utility model discloses a polyolefin film for molding a composite material, which adopts the technical scheme that: the polyolefin heat-seal composite board comprises an inner core layer and a polyolefin material layer, wherein a heat-dissipation graphite layer is coated on the outer surface of the inner core layer, an adhesive layer is coated on the outer surface of the heat-dissipation graphite layer, a polyolefin layer is coated on the outer surface of the adhesive layer, a heat-seal layer is connected to the outer surface of the polyolefin layer, an aluminum-plastic board is connected to the upper surface of the heat-seal layer, and a composite board layer is connected to the lower surface of the heat-seal layer. A polyolefin film for molding a composite material: through setting up the ray shield layer, the ultraviolet ray reflection agent can be to the fine absorption of the ultraviolet ray in the sun, and polyolefin resin has fine high temperature resistance, and is not fragile, maintains overall structure, and the antioxidant can prevent polyolefin resin oxidation, increase of service life, has improved the heat stability of film like this greatly.
Description
Technical Field
The utility model relates to the technical field of polyolefin film design, in particular to a polyolefin film for composite material molding.
Background
Polyolefin, abbreviated as PE, is a thermoplastic resin obtained by polymerization of ethylene hydrocarbons. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. The polyethylene is odorless, nontoxic, has wax-like hand feeling, has excellent low-temperature resistance (the lowest use temperature can reach-70 to-100 ℃), has good chemical stability, can resist most of acid and alkali erosion (cannot resist acid with oxidation property), is insoluble in common solvents at normal temperature, has small water absorption and excellent electrical insulation performance; however, polyethylene is very sensitive to environmental stresses (chemical and mechanical effects) and has poor thermal aging resistance, and its properties can be improved by adding corresponding auxiliaries. The properties of polyethylene vary from species to species, and depend primarily on molecular structure and density. Products with different densities (0.91-0.96 g/cm3) can be obtained by adopting different production methods. Polyethylene can be processed by the usual molding methods for thermoplastics (see plastics processing). The composite material has wide application, is mainly used for manufacturing films, containers, pipelines, monofilaments, wires and cables, daily necessities and the like, and can be used as a high-frequency insulating material for televisions, radars and the like.
The existing polyolefin film for composite material molding has low tensile strength and elongation at break, poor air tightness under high temperature condition and poor thermal stability caused by the fact that the existing polyolefin film cannot absorb ultraviolet rays.
Therefore, it is necessary to develop a polyolefin film for molding a composite material.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a polyolefin film for composite material molding, which solves the problems of low tensile strength and elongation at break, poor air tightness under high temperature condition and poor thermal stability caused by incapability of absorbing ultraviolet rays of the existing polyolefin film for composite material molding by arranging an anti-radiation layer.
In order to achieve the above purpose, the utility model provides the following technical scheme: a polyolefin film for forming composite materials comprises an inner core layer and a polyolefin layer, wherein the outer surface of the inner core layer is coated with a heat dissipation graphite layer, the outside of the heat dissipation graphite layer is coated with an adhesive layer, the outside of the adhesive layer is coated with a polyolefin layer, the outside of the polyolefin layer is connected with a heat sealing layer, the upper surface of the heat sealing layer is connected with an aluminum-plastic plate, the upper surface of the heat-sealing layer is connected with an aluminum-plastic plate, the lower surface of the heat-sealing layer is connected with a composite material plate layer, the aluminum-plastic panel and the composite material plate layer are connected through the edge sealing layer, a sealant is connected between the edge sealing layer and the aluminum-plastic panel and the composite material plate layer, the outer surface of the aluminum-plastic panel is connected with an anti-radiation layer, the surface of the anti-radiation layer is provided with anti-static powder, the surface of the composite material plate layer is connected with a double-sided adhesive, and the surface of the double-sided adhesive is connected with a double-sided release film.
Preferably, the inner core layer is made of polystyrene foam rubber as a main material, and the inner core layer is formed by an extrusion biaxial stretching process.
Preferably, the filling material of the heat dissipation graphite layer is expandable graphite, the main material of the bonding layer is epoxy resin, and the heat dissipation graphite layer and the polyolefin layer form a fixed structure through the bonding layer.
Preferably, the filler of the heat-sealing layer is low-density polyethylene and linear low-density polyethylene, and the main filler of the polyolefin layer is polypropylene and polyethylene.
Preferably, the top edge of the edge sealing layer and the top edge of the aluminum-plastic panel are on the same horizontal plane, and the bottom edge of the edge sealing layer and the bottom edge of the composite material panel layer are on the same horizontal plane.
Preferably, the radiation-proof layer comprises an antioxidant, a polyolefin resin and an ultraviolet reflecting agent, wherein the antioxidant accounts for three percent, the polyolefin resin accounts for ninety-five percent, and the ultraviolet reflecting agent accounts for five percent.
Preferably, the antistatic powder is tightly adhered to the ray-proof layer, and the double-sided adhesive is prepared by a process of non-substrate double-sided adhesive.
The utility model has the beneficial effects that:
according to the utility model, the anti-ray layer is arranged, the ultraviolet reflecting agent can well absorb ultraviolet rays in the sun, the polyolefin resin has good high temperature resistance, is not easy to damage and maintains the whole structure, and the antioxidant can prevent the polyolefin resin from being oxidized, so that the service life is prolonged, and the thermal stability of the film is greatly improved.
1. According to the utility model, the polystyrene foam adhesive is used as a main material for the inner core layer, so that the illumination intensity of the optical fiber to the film covering material can be well isolated, the protection is enhanced, and the overall thickness and softness of the film are increased by using the polystyrene foam adhesive as a material.
2. The utility model uses the heat dissipation graphite layer, thus greatly increasing the heat dissipation effect and the air permeability of the film and the covering, and the graphite can expand under illumination, thus sealing fine through holes in the film, increasing the air tightness and preventing gas from entering the film.
3. The heat-sealing layer can improve the heat-sealing strength, the hot-sticking strength, the sealing temperature and the heat-sealing temperature range heat resistance of the film, and has excellent blocking effect on gas, smell, spice, solvent and the like.
Drawings
FIG. 1 is a schematic view of the overall internal structure provided by the present invention;
FIG. 2 is a schematic view of the overall front view structure provided by the present invention;
FIG. 3 is a schematic view of a structure of a radiation-shielding layer according to the present invention;
fig. 4 is a schematic view of an enlarged structure at a provided in the present invention.
In the figure: 1. an inner core layer; 2. a heat-dissipating graphite layer; 3. an adhesive layer; 4. a polyolefin layer; 5. a heat seal layer; 6. An aluminum-plastic panel; 7. a composite ply; 8. a sealing layer; 9. sealing glue; 10. a radiation-shielding layer; 1001. an antioxidant; 1002. a polyolefin resin; 1003. an ultraviolet reflecting agent; 11. antistatic powder; 12. double-sided gluing; 13. double-sided release films.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment 1, referring to fig. 1 to 4, a polyolefin film for composite material molding provided by the present invention includes an inner core layer 1 and a polyolefin layer 4, the outer surface of the inner core layer 1 is covered with a heat dissipation graphite layer 2, the outer surface of the heat dissipation graphite layer 2 is covered with an adhesive layer 3, the outer surface of the adhesive layer 3 is covered with a polyolefin layer 4, the outer portion of the polyolefin layer 4 is connected with a heat sealing layer 5, the upper surface of the heat sealing layer 5 is connected with an aluminum-plastic plate 6, the lower surface of the heat sealing layer 5 is connected with a composite material plate layer 7, the aluminum-plastic plate 6 and the composite material plate layer 7 are connected through an edge sealing layer 8, a sealant 9 is connected between the edge sealing layer 8 and the aluminum-plastic plate 6 and the composite material plate layer 7, the outer surface of the aluminum-plastic plate 6 is connected with an anti-radiation layer 10, the surface of the anti-radiation layer 10 is provided with anti-static powder 11, the surface of the composite material plate layer 7 is connected with a double-sided adhesive 12, and the surface of the double-sided adhesive 12 is connected with a double-sided release film 13;
the using process of the utility model is as follows: when the utility model is used, whether the inner core layer 1 is intact or not is checked, whether the inner core layer is damaged or not is checked, then the heat dissipation graphite layer 2 covers the outer surface of the inner core layer 1, the polyolefin layer 4 and the heat dissipation graphite layer 2 form a fixed structure through the bonding layer 3, the heat sealing layer 5 is covered on the outer surface of the polyolefin layer 4, the filling materials of the heat sealing layer 5 are low-density polyethylene and linear low-density polyethylene, the edge sealing layer 8 is connected with the aluminum plastic plate 6 and the composite material plate layer 7 through the sealant 9 to form a sealing structure, then, whether the radiation-proof layer 10 has a broken edge or not is checked, after the check, the antistatic powder 11 is covered on the surface of the radiation-proof layer 10, the double-sided release film 13 is removed when the composite material layer 7 needs to be used, and the composite material layer 7 is pasted on a covering object through the double-sided adhesive 12, so that the design and the use of the polyolefin film for composite material molding are completed.
Example 2, the present invention provides a polyolefin film for molding a composite material, which is different from example 1 in that:
referring to the attached drawing 1 of the specification, the polyolefin film for molding a composite material of this embodiment includes an inner core layer 1 and a polyolefin layer 4, the inner core layer 1 uses polystyrene foam as a main material, the inner core layer 1 is manufactured by an extrusion biaxial stretching process, the outer surface of the inner core layer 1 is coated with a heat dissipation graphite layer 2, the filling material of the heat dissipation graphite layer 2 is expandable graphite, the main material of an adhesive layer 3 is epoxy resin, the heat dissipation graphite layer 2 forms a fixed structure with the polyolefin layer 4 through the adhesive layer 3, the outer part of the heat dissipation graphite layer 2 is coated with the adhesive layer 3, the outer part of the adhesive layer 3 is coated with the polyolefin layer 4, the outer part of the polyolefin layer 4 is connected with a heat seal layer 5, the filling material of the heat seal layer 5 is low density polyethylene and linear low density polyethylene, the main filling material of the polyolefin layer 4 is polypropylene and polyethylene, the upper surface of the heat-sealing layer 5 is connected with an aluminum-plastic plate 6, the upper surface of the heat-sealing layer 5 is connected with the aluminum-plastic plate 6, the lower surface of the heat-sealing layer 5 is connected with a composite material plate layer 7, the aluminum-plastic plate 6 and the composite material plate layer 7 are connected through an edge sealing layer 8, a sealant 9 is connected between the edge sealing layer 8 and the aluminum-plastic plate 6 as well as between the edge sealing layer 8 and the composite material plate layer 7, the top edge of the edge sealing layer 8 and the top edge of the aluminum-plastic plate 6 are on the same horizontal plane, the bottom edge of the edge sealing layer 8 and the bottom edge of the composite material plate layer 7 are on the same horizontal plane, the outer surface of the aluminum-plastic plate 6 is connected with an anti-radiation layer 10, the anti-radiation layer 10 is composed of an antioxidant 1001, a polyolefin resin 1002 and an ultraviolet reflector 1003, the antioxidant 1001 is in three percent, the polyolefin resin 1002 is ninety-fifteen percent, and the ultraviolet reflector 1003 is five percent, the surface of the anti-radiation layer 10 is provided with anti-static powder 11, the anti-static powder 11 is tightly adhered to the anti-radiation layer 10, the surface of the composite material plate layer 7 is connected with a double-faced adhesive 12, the surface of the double-faced adhesive 12 is connected with a double-faced release film 13, and the manufacturing process of the double-faced adhesive 12 is a non-substrate double-faced adhesive.
The implementation scenario is specifically as follows: when the utility model is used, whether the inner core layer 1 is intact or not is checked, whether the inner core layer is damaged or not is checked, polystyrene foam adhesive is used as a main material for the inner core layer 1, so that the illumination intensity of optical fibers to a film covering object can be well isolated, the protection strength is enhanced, the whole thickness and the flexibility of the film are increased by using the polystyrene foam adhesive, then the outer surface of the inner core layer 1 is covered with the heat dissipation graphite layer 2, the heat dissipation effect and the air permeability of the film and the covering object are greatly increased by using the heat dissipation graphite layer 2, the graphite can be expanded by illumination, fine through holes in the film can be sealed, the air tightness is increased, gas is prevented from entering the inside, the polyolefin layer 4 and the heat dissipation graphite layer 2 form a fixed structure by the adhesive layer 3, the heat sealing layer 5 is externally covered on the outer surface of the polyolefin layer 4, and the filling material of the heat sealing layer 5 is low density polyethylene and linear low density polyethylene, by using the heat-sealing layer 5, the heat-sealing strength, the heat-bonding strength, the seal-opening temperature and the heat-sealing temperature range heat resistance of the film can be improved, excellent blocking effects on gas, smell, spice, solvent and the like are presented, the edge-sealing layer 8 is mutually connected with the aluminum-plastic plate 6 and the composite material plate layer 7 by using the sealant 9 to form a sealing structure, the edge-sealing layer 8 is used to form a sealed stable structure between the aluminum-plastic plate 6 and the composite material plate layer 7, the sealant 9 can play a role of moisture prevention and leakage prevention and is very good to use, then the radiation-preventing layer 10 is checked to have no edge drop, by arranging the radiation-preventing layer 10, the ultraviolet reflector 1003 can well absorb ultraviolet rays in the sun, the polyolefin resin 1002 has good high temperature resistance and is not easy to damage, the whole structure is maintained, and the antioxidant 1001 can prevent the polyolefin resin 1002 from being oxidized, increase of service life, the thermal stability of film has been improved so greatly, the back is good in the inspection, with antistatic powder 11 cover on the surface of anti-ray layer 10, get rid of two-sided type membrane 13 when needing to use, with combined material sheet layer 7 paste on the cover through two-sided viscose 12 can, can play insulating effect through antistatic powder 11, prevent that the covering metal from having static to produce the injury to the staff, and two-sided viscose 12 can play and cover stable effect, the design and the use of polyolefin film have just been accomplished for the shaping of such combined material.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (5)
1. A polyolefin film for molding a composite material, comprising an inner core layer (1) and a polyolefin layer (4), characterized in that: the radiation-proof composite material is characterized in that the outer surface of the inner core layer (1) is coated with a heat-dissipation graphite layer (2), the outer part of the heat-dissipation graphite layer (2) is coated with an adhesive layer (3), the outer part of the adhesive layer (3) is coated with a polyolefin layer (4), the outer part of the polyolefin layer (4) is connected with a heat-sealing layer (5), the upper surface of the heat-sealing layer (5) is connected with an aluminum-plastic plate (6), the upper surface of the heat-sealing layer (5) is connected with the aluminum-plastic plate (6), the lower surface of the heat-sealing layer (5) is connected with a composite material plate layer (7), the aluminum-plastic plate (6) and the composite material plate layer (7) are connected through a sealing edge layer (8), a sealant (9) is connected between the sealing edge layer (8) and the aluminum-plastic plate (6) and the composite material plate layer (7), the outer surface of the aluminum-plastic plate (6) is connected with a radiation-proof layer (10), and the surface of the radiation-proof layer (10) is provided with antistatic powder (11), the surface of the composite material plate layer (7) is connected with double-sided adhesive (12), and the surface of the double-sided adhesive (12) is connected with a double-sided release film (13).
2. The polyolefin film for molding a composite material according to claim 1, wherein: the inner core layer (1) is formed by an extrusion biaxial stretching process.
3. The polyolefin film for molding a composite material according to claim 1, wherein: the heat dissipation graphite layer (2) and the polyolefin layer (4) form a fixed structure through the bonding layer (3).
4. The polyolefin film for molding a composite material according to claim 1, wherein: the top edge of the edge sealing layer (8) and the top edge of the aluminum-plastic panel (6) are on the same horizontal plane, and the bottom edge of the edge sealing layer (8) and the bottom edge of the composite material panel layer (7) are on the same horizontal plane.
5. The polyolefin film for molding a composite material according to claim 1, wherein: the antistatic powder (11) is tightly adhered to the ray-proof layer (10), and the double-sided adhesive (12) is made of a double-sided adhesive without a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022981252.0U CN216039364U (en) | 2020-12-08 | 2020-12-08 | Polyolefin film for composite material molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022981252.0U CN216039364U (en) | 2020-12-08 | 2020-12-08 | Polyolefin film for composite material molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216039364U true CN216039364U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022981252.0U Active CN216039364U (en) | 2020-12-08 | 2020-12-08 | Polyolefin film for composite material molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216039364U (en) |
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- 2020-12-08 CN CN202022981252.0U patent/CN216039364U/en active Active
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