CN112757729A - High-resistance heat-insulation plastic composite board - Google Patents
High-resistance heat-insulation plastic composite board Download PDFInfo
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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Abstract
The invention discloses a high-resistance heat-insulation plastic composite plate which comprises an isolation layer, a functional surface layer, a buffer layer, an enhancement layer, a barrier layer and a dielectric layer, wherein the isolation layer is a fully transparent or semitransparent BOPET film, and the lower surface of the isolation layer is attached to the upper surface of the functional surface layer; the lower surface of the functional surface layer is attached to the upper surface of the reinforcing layer; the buffer layer is respectively embedded into the functional surface layer and the enhancement layer; the barrier layer is an aluminum-plastic composite film and is positioned inside the enhancement layer; the dielectric layer is partially embedded inside the other surface of the reinforcing layer opposite to the functional surface layer. The thermoplastic composite material plate can effectively block water vapor and moisture, prolong the service life of the core material and improve the heat insulation performance of the compartment body; and the light-shielding and ultraviolet-shielding composite material also has the functions of shielding light, shielding ultraviolet rays and preventing the core material from aging.
Description
Technical Field
The invention relates to the technical field of composite boards, in particular to a high-resistance heat-insulation plastic composite board.
Background
The continuous fiber multiaxial fabric reinforced thermoplastic composite board has unique preparation technology and product advantages, is rapidly developed in the international market in recent years, some developed countries in Europe and America have products applied to the fields of navigation aviation, military and civil use, and the development trend is to replace the existing thermosetting material and replace thin stainless steel rolled plates or aluminum plates to prepare products, so that the aims of high performance, light weight and energy conservation of the products are fulfilled.
The existing thermoplastic composite board is influenced by ultraviolet rays, high temperature, mould and the like, is easy to age and the like, has poor antibacterial property, heat resistance and ageing resistance, has poor barrier property, has poor barrier effect on water vapor and the like, and influences the service life of the board.
Disclosure of Invention
The invention aims to provide a high-resistance heat-insulation plastic composite plate to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-resistance heat-insulation plastic composite plate comprises a thermal-pressing compounded isolation layer, a functional surface layer, a buffer layer, an enhancement layer, a barrier layer and a dielectric layer, wherein the isolation layer is a fully transparent or semitransparent BOPET film, and the lower surface of the isolation layer is attached to the upper surface of the functional surface layer; the lower surface of the functional surface layer is attached to the upper surface of the reinforcing layer; the buffer layer is respectively embedded into the functional surface layer and the enhancement layer; the barrier layer is an aluminum-plastic composite film and is positioned inside the enhancement layer; the dielectric layer is partially embedded inside the other surface of the reinforcing layer opposite to the functional surface layer.
As a further scheme of the invention: the functional surface layer is a functional film consisting of main resin, functional additives and fillers. 75-95 parts of main resin by weight, wherein the main resin is one or more than one of polyolefin resin; the functional modifier accounts for 3-10 parts, and comprises: 0.5-2 parts of an antibacterial agent, 0.5-2 parts of a mildew preventive, 0.5-2 parts of a light stabilizer, 0.5-2 parts of silicone master batch, 0.5-1 part of a slipping agent and 0.5-1 part of a non-ionic antistatic agent; the filler accounts for 5-15 parts, and is selected from one or more of titanium dioxide, zinc oxide, zinc sulfide, magnesium oxide and silver oxide; the thickness of the functional surface layer is 0.1 mm-1.0 mm, the water absorption rate is less than 0.01%, and the surface dyne value is less than 38.
As a further scheme of the invention: the buffer layer is made of spunlace or hot-rolled consolidated non-woven fabric material, the surface density of the non-woven fabric is 5-50 gsm, when the resin matrix content of the enhancement layer is more than or equal to 50%, the melt flow rate is more than or equal to 30g/10min, and the surface density range of the buffer layer is 30-50 gsm; when the resin matrix content of the enhancement layer is less than 50%, the melt flow rate is less than 30g/10min, the density range of the buffer layer is 5-30 gsm, the higher the resin matrix content is, the higher the melt flow rate is, the higher the corresponding buffer layer density needs to be, and if the selected non-woven fabric cover density is too low, the buffer effect is poor; the surface density is too high, and delamination damage is easy to occur in the non-woven fabric.
As a further scheme of the invention: the non-woven fabric material is a fiber formed by mixing polyester fiber with the length of 10-65mm or polyester fiber with one or more of viscose fiber and bamboo fiber.
As a further scheme of the invention: the reinforcing layer is composed of a plurality of layers of continuous fiber reinforced thermoplastic composite material prepreg sheets, and the continuous fiber reinforced thermoplastic composite material prepreg sheets are formed by fully impregnating and processing the reinforcing fibers with molten matrix resin.
As a further scheme of the invention: the reinforced fiber is glass fiber, carbon fiber, basalt fiber or aramid fiber, and the matrix resin is composed of main resin and a modified auxiliary agent; the modified auxiliary agent comprises one or more of fiber reinforced master batch, calcium carbonate master batch, silicone master batch, compatilizer, antioxidant, lubricant, ultraviolet-resistant stabilizer and zinc oxide.
As a further scheme of the invention: the matrix resin is polyolefin resin.
As a further scheme of the invention: the medium layer is made of a non-woven fabric material which is formed by mixing one or more of polyester fiber, viscose fiber and bamboo fiber with the length of 10-70mm and is reinforced and formed in a hot rolling or spunlace mode.
As a further scheme of the invention: the medium layer is made of hot-rolled non-woven fabric with the surface density of 60-150gsm, and the rolling point of the hot-rolled non-woven fabric is diamond-shaped, square or oval.
As a further scheme of the invention: the medium layer is made of spunlace non-woven fabrics with the surface density of 60-150gsm, and the spunlace non-woven fabrics are two-way cross non-woven fabrics.
As a further scheme of the invention: the barrier layer structure is resin film/aluminum foil/resin film, all the layers are bonded by glue, the resin film is one or combination of PE, PP and PA films, and the thickness of each layer of film is 0.01 mm-0.2 mm; the thickness of the aluminum foil is 0.005-0.2 mm.
Compared with the prior art, the invention has the beneficial effects that: the thermoplastic composite material plate can effectively block water vapor and moisture, prolong the service life of the core material and improve the heat insulation performance of the compartment body; and the light-shielding and ultraviolet-shielding composite material also has the functions of shielding light, shielding ultraviolet rays and preventing the core material from aging.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The structure comprises an isolation layer 1, a functional surface layer 2, a buffer layer 3, a reinforcing layer 4, a barrier layer 5 and a dielectric layer 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, in an embodiment of the present invention, a high resistance thermal insulation plastic composite board includes an isolation layer 1, a functional surface layer 2, a buffer layer 3, a reinforcing layer 4, a barrier layer 5 and a dielectric layer 6, which are thermally pressed and compounded, wherein the buffer layer 3 is embedded into the functional surface layer 2 and the reinforcing layer 3, respectively, and the dielectric layer 6 is partially embedded into the other surface of the reinforcing layer 4 opposite to the functional surface layer; the lower surface of the isolation layer 1 is attached to the upper surface of the functional surface layer 2, and a strippable interface is formed; the lower surface of the functional surface layer 2 and the upper surface of the enhancement layer 4 have no obvious interface and can not be peeled; the barrier layer 5 is located inside the reinforcing layer 4;
the isolation layer 1 is a fully transparent or semitransparent BOPET film, the thickness of the isolation layer is 25 micrometers, the light transmittance is 85 percent, the haze is 10 percent, the glossiness is 25 percent, the longitudinal and transverse tensile strength is more than or equal to 2N/mm, and the elongation at break is less than or equal to 30 percent. Containing an antistatic agent, surface resistance value 1010Omega, prevent the static to human body and processing the destruction of producing at present. This film was chosen for its effect: 1. can be attached and is easy to peel: the functional surface layer is attached to protect the surface of the product, and the surface of the product is prevented from being polluted or scratched in the processing and installation processes; after the installation is finished, the stripping is easy, and no adhesive residue exists; 2. the product is endowed with a matt appearance,the surface is soft, the reflection is reduced, and the effect of weakening surface defects can be achieved; 3. the belt mark and the belt texture depth are relieved, local unevenness is avoided, and the appearance of a smooth and flat product is realized.
The functional surface layer 2 is a functional film consisting of main resin, functional additives and fillers, and the matrix resin polyolefin resin accounts for 90 parts by weight; the functional modifier accounts for 5 parts, and comprises the following components: 1 part of antibacterial agent, 1 part of mildew inhibitor, 1 part of light stabilizer, 1 part of silicone master batch, 0.5 part of slipping agent and 0.5 part of nonionic antistatic agent; the filler accounts for 5 parts, and the filler is 2 parts of zinc oxide and 3 parts of silver oxide; the thickness of the functional surface layer is 0.2mm, the water absorption is 0.008 percent, and the surface dyne value is 28. Has the functions of stable and long-acting antibiosis, mould prevention, ageing resistance, antifouling, wear resistance and the like; safe and environment-friendly, can pass FDA standard, and meets the requirements of food contact materials.
The buffer layer 3 is made of porous and loose non-woven fabric material, and the material for forming the non-woven fabric is polyester fiber with the length of 60mm (ensuring the uniformity and the strength of the non-woven fabric). The consolidation mode of the non-woven fabric is spunlace, the surface is flat and uniform, the resin matrix content of the reinforcing layer 4 is 60%, the melt flow rate is 70g/10min, the density of the buffer layer surface is 45gsm, and the buffer layer with proper surface density can relieve the defect problem caused by inconsistent shrinkage of the functional surface layer and the reinforcing layer due to different materials; the shrinkage cavity on the surface of the thermoplastic composite material can be filled to obtain the appearance of a product with a smooth surface; the problem of scrap pollution caused by exposure of fibers in the reinforcing layer after the functional surface layer is scratched can be avoided, and the scratch resistance of the product is improved.
The reinforced layer 4 is composed of a plurality of layers of continuous fiber reinforced thermoplastic composite prepreg sheets and barrier layers, the layer structure belongs to symmetrical layer laying and includes but is not limited to the following layer laying modes, the preferred layer laying modes are [ 0/90/barrier layer/90/0 ], [ 90/0/barrier layer/0/90 ], [ 0/90/barrier layer/90/0/90/0 ], [ 90/0/barrier layer/90/0/0/90 ], the layer laying mode of the embodiment is [ 90/0/barrier layer/90/0/0/90 ], and the thickness is 2.1 mm. The continuous fiber reinforced thermoplastic composite prepreg sheet is formed by fully impregnating and processing reinforced fibers through fused reinforced layer 4 matrix resin, wherein the reinforced fibers are glass fibers, the linear density of the reinforced fibers is 1200tex, the linear density of the reinforced fibers is 60%, the reinforced layer 4 matrix resin is composed of main resin and a modification auxiliary agent, and the main resin is polyolefin resin; the modified auxiliary agent comprises fiber reinforced master batch, calcium carbonate master batch, silicone master batch, compatilizer, antioxidant, lubricant, ultraviolet-resistant stabilizer and zinc oxide.
The barrier layer 5 is an aluminum-plastic composite film, the structure of the aluminum-plastic composite film is formed by sequentially laminating a PP film/glue/PA film/glue/aluminum foil/glue/PP film, wherein the thickness of the PP film is 0.1mm, the thickness of the PA film is 0.15mm, the thickness of the aluminum foil is 0.1mm, the thickness of the aluminum foil is 0.7-1.0mm, and the surface density of the aluminum foil is 80-120g/m2Oxygen transmission rate is less than or equal to 0.1cm3/m224h, the water vapor transmission rate is less than or equal to 0.1g/m224h, the PA/AL peel strength-transverse direction is more than or equal to 4.8N/15mm, and the PA/AL peel strength-longitudinal direction is more than or equal to 4.8N/15 mm.
The medium layer 6 is a non-woven fabric material with a special structure, the non-woven fabric is composed of one or more than one of chemical fibers or regenerated natural fibers with the melting point higher than 220 ℃ such as polyester fibers, viscose fibers, bamboo fibers and the like with the length of 10-70mm, and the non-woven fabric can be obtained by carding, air laying, hot rolling or spunlace reinforcement molding, and can be blended with multiple materials and multiple-scale fibers, and has loose surface structure, compact internal structure, short surface fibers and long internal fibers. After the dielectric layer 6 is hot-pressed and compounded with other reinforcing layers, 30% -70% of the part is embedded into the matrix resin of the reinforcing layer, and the other part which is not embedded provides the function of an adhesive medium or a reinforcing medium, is not limited by the influence of glue components and an adhesive mechanism, and can realize the adhesion with various materials. The adhesive bonding of physical bonding or chemical reaction is beneficial to rapid permeation, air exhaust, bonding, consolidation and the like of glue, and provides higher stripping force. When the penetration depth of glue and the like is shallow and the gluing amount is small, large-area peeling is not easy to occur, the air exhaust is facilitated, and the problems of bulging and the like are not easy to occur.
The media layer 6 is preferably a hot-rolled nonwoven or spunlace nonwoven having an areal density of 60-150 gsm. The shape of the rolling points of the hot-rolled non-woven fabric is diamond, square or oval, the preferred range of the area proportion of the rolling points is 30%, the shortest distance between adjacent rolling points is 2.5mm, and the depth of the rolling points is 0.1mm, and the range can provide the bi-directional higher peel strength of the final product. The spunlace non-woven fabric is preferably a two-way cross non-woven fabric, the difference between the radial and latitudinal mechanical strength, the shrinkage rate and the like is small, and the prepared composite material plate is flat and is not easy to warp.
Comparative example 1
The only difference from example 1 is the elimination of the intermediate barrier layer.
Table 1: example 1 and comparative example 1
From the embodiment 1, the high-resistance heat-insulation plastic composite board can effectively block water vapor and oxygen, prolong the service life of a core material, insulate heat and improve the heat-insulation performance of a compartment body; and the light-shielding and ultraviolet-shielding composite material also has the functions of shielding light, shielding ultraviolet rays and preventing the core material from aging.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (11)
1. The utility model provides a high resistant thermal-insulated plasticity combined material board, includes hot pressing complex isolation layer, functional surface layer, buffer layer, enhancement layer, barrier layer and dielectric layer, its characterized in that: the isolation layer is a fully transparent or semitransparent BOPET film, and the lower surface of the isolation layer is attached to the upper surface of the functional surface layer; the lower surface of the functional surface layer is attached to the upper surface of the reinforcing layer; the buffer layer is respectively embedded into the functional surface layer and the enhancement layer; the barrier layer is an aluminum-plastic composite film and is positioned inside the enhancement layer; the dielectric layer is partially embedded inside the other surface of the reinforcing layer opposite to the functional surface layer.
2. The high resistance thermal plastic composite board according to claim 1, characterized in that: the functional surface layer is a functional film consisting of main resin, functional additives and fillers.
3. A high resistance thermoplastic composite sheet according to claim 2, characterized in that: the main resin of the functional surface layer is one or more of polyolefin resin, and accounts for 75-95 parts by weight; the functional modifier accounts for 3-10 parts, and comprises: 0.5-2 parts of an antibacterial agent, 0.5-2 parts of a mildew preventive, 0.5-2 parts of a light stabilizer, 0.5-2 parts of silicone master batch, 0.5-1 part of a slipping agent and 0.5-1 part of a non-ionic antistatic agent; the filler accounts for 5-15 parts, and is selected from one or more of titanium dioxide, zinc oxide, zinc sulfide, magnesium oxide and silver oxide; the thickness of the functional surface layer is 0.1 mm-1.0 mm, the water absorption rate is less than 0.01%, and the surface dyne value is less than 38.
4. The high resistance thermal plastic composite board according to claim 1, characterized in that: the buffer layer is made of spunlace or hot-rolled consolidated non-woven fabric material.
5. The high resistance thermal plastic composite board according to claim 4, characterized in that: the non-woven fabric material is a fiber formed by mixing polyester fiber with the length of 10-65mm or polyester fiber with one or more of viscose fiber and bamboo fiber.
6. The high resistance thermal plastic composite board according to claim 1, characterized in that: the reinforcing layer is composed of a plurality of layers of continuous fiber reinforced thermoplastic composite material prepreg sheets, and the continuous fiber reinforced thermoplastic composite material prepreg sheets are formed by fully impregnating and processing the reinforcing fibers with molten matrix resin.
7. The high resistance thermal plastic composite board according to claim 6, characterized in that: the reinforced fiber is glass fiber, carbon fiber, basalt fiber or aramid fiber, and the matrix resin is composed of main resin and a modified auxiliary agent; the modified auxiliary agent comprises one or more of fiber reinforced master batch, calcium carbonate master batch, silicone master batch, compatilizer, antioxidant, lubricant, ultraviolet-resistant stabilizer and zinc oxide.
8. A high resistance thermoplastic composite sheet according to claim 2 or 7, characterized in that: the main resin is polyolefin resin.
9. The high resistance thermal plastic composite board according to claim 1, characterized in that: the medium layer is made of a non-woven fabric material which is reinforced and formed by one or more of polyester fiber, viscose fiber, chemical fiber with the melting point of bamboo fiber being higher than 220 ℃ or regenerated natural fiber in a mixed, hot-rolled or spunlaced mode, and the length of the non-woven fabric material is 10-70 mm.
10. The high resistance thermal plastic composite board according to claim 1, characterized in that: the medium layer is made of hot-rolled non-woven fabric with the surface density of 60-150gsm or spunlace non-woven fabric with the surface density of 60-150gsm, and the rolling point of the hot-rolled non-woven fabric is diamond-shaped, square or oval; the spunlace non-woven fabric is a two-way cross non-woven fabric.
11. The high resistance thermal plastic composite board according to claim 1, characterized in that: the barrier layer structure is resin film/aluminum foil/resin film, all the layers are bonded by glue, the resin film is one or combination of PE, PP and PA films, and the thickness of each layer of film is 0.01 mm-0.2 mm; the thickness of the aluminum foil is 0.005-0.2 mm.
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| CN202110095987.XA CN112757729A (en) | 2021-01-25 | 2021-01-25 | High-resistance heat-insulation plastic composite board |
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| CN202110095987.XA CN112757729A (en) | 2021-01-25 | 2021-01-25 | High-resistance heat-insulation plastic composite board |
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