CN108357170B - Polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays and preparation method thereof - Google Patents

Polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays and preparation method thereof Download PDF

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Publication number
CN108357170B
CN108357170B CN201810449766.6A CN201810449766A CN108357170B CN 108357170 B CN108357170 B CN 108357170B CN 201810449766 A CN201810449766 A CN 201810449766A CN 108357170 B CN108357170 B CN 108357170B
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polyethylene
weight
ultraviolet
layer
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CN108357170A (en
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黄冠儒
许方定
郑勇城
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Fujian Jicheng Umbrella Co ltd
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Fujian Jicheng Umbrella Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D107/00—Coating compositions based on natural rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

The invention relates to a polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays and a preparation method thereof. The preparation method is that the adhesive pressing layer is attached to the inner surface of the cloth base layer by adopting a gold stamping process, the photochromic coating layer is sprayed on the outer surface of the cloth base layer by adopting a powder spraying process, and the polyethylene umbrella adhesive plaster for heat insulation and ultraviolet isolation is formed after the film layer is uniformly coated on the surface of the photochromic coating layer. The invention has the advantages of good ultraviolet isolation and heat insulation effects of the polyethylene umbrella adhesive tape, long service time, strong ornamental property and diversified functions of the umbrella adhesive tape.

Description

Polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays and preparation method thereof
Technical Field
The invention relates to the technical field of functional umbrella adhesive tapes, in particular to a polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays and a preparation method thereof.
Background
The ultraviolet-proof fabric is a protective material for preventing excessive ultraviolet radiation of human bodies. Common fabrics include polyester-silk, pongee and five satins. The most significant effect of ultraviolet light is on the skin and eyes of the human body. The absorption of ultraviolet light by the skin is related to its wavelength. The shorter the wavelength, the less deep the skin is penetrated, and the less melanin pigmentation after irradiation; the longer the wavelength, the greater the penetration depth into the skin and the greater the pigmentation after irradiation. The photon flow with higher energy levels can cause denaturation of nuclear proteins and some enzymes in the cell due to the action of photochemical reactions.
Polyethylene is the most commonly used plastic polymer in the world, with annual rates of consumption exceeding 500 billion pounds per year. More than 70% of Porex products use polyethylene. Polyethylene is a semi-crystalline polymer whose toughness is enhanced prior to tensile failure in units of the repeating linear molecular structure-CH 2-CH 2-. In general, polyethylene is a strong, lightweight thermoplastic material possessing excellent chemical resistance. The pore size diameter of products produced using standard polyethylene grades is typically 7-150 microns, but these nominal values can be increased to 300 microns by a particular blend.
Nowadays, the umbrella is no longer used for keeping out the wind and rain in the traditional sense, and has a plurality of styles. With the development of science and technology and the improvement of living standard of people, people are continuously seeking new styles and functions of umbrellas, so that new styles of umbrellas are also continuously invented.
In the prior art, polyethylene is often used as the main fabric of the umbrella fabric, but the umbrella fabric used in daily life has poor ultraviolet isolation and heat insulation effects, the umbrella fabric used as the sun umbrella has poor ultraviolet isolation capability in the use process, and the umbrella fabric is overheated in high-temperature weather, so that the umbrella fabric is inconvenient to use in summer. And the umbrella fabric is easy to age and deform at high temperature, and the service life is short.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a polyethylene umbrella adhesive tape for insulating heat and ultraviolet rays and a preparation method thereof, and solves the problem of single function of the umbrella adhesive tape.
The purpose of the invention is realized by the following technical scheme:
a polyethylene umbrella adhesive tape for insulating heat and ultraviolet rays is sequentially provided with a pressure glue layer, a cloth base layer, a photosensitive color-changing coating layer and a film layer from inside to outside;
the adhesive pressing layer comprises the following components in parts by weight: 50-80 parts of natural rubber, 3-5 parts of photosensitive pigment and 10-12 parts of anti-aging agent;
the fabric base layer comprises the following components in parts by weight: 60-70 parts of polyethylene fiber, 5-10 parts of copper ammonia fiber and 10-15 parts of polyimide fiber;
the photosensitive color-changing coating layer comprises the following components in parts by weight: 5-8 parts of ultraviolet isolation substances, 5-8 parts of anti-infrared nano powder, 8-12 parts of photosensitive pigment, 3-5 parts of defoaming agent and 10-15 parts of natural rubber;
the film layer is composed of the following components in parts by weight: 45-55 parts of polyvinylidene fluoride, 35-38 parts of acrylic resin and 10-12 parts of polyethylene resin.
Thermal-insulated isolated ultraviolet's polyethylene umbrella adhesive tape is through design pressure glue film, the cloth basic unit, sensitization dope layer and thin layer that discolours, its middling pressure glue film and the laminating of cloth basic unit are as the internal surface of umbrella adhesive tape, adopt gilt technology preparation to form, can design different decorative patterns, and contain sensitization pigment in the pressure glue film, increase the sight of cloth, contain natural rubber in the pressure glue film, can strengthen the viscidity of pressure glue film, the laminating is difficult for droing at the cloth basic unit after the preparation, increase of service time.
The cloth base layer adopts polyethylene fibers, copper ammonia fibers and polyimide fibers, wherein the polyethylene fibers have good toughness and chemical resistance and are suitable for different natural environments; the added copper ammonia fiber enables the fabric to have soft hand feeling, soft luster, real silk feeling and strong moisture absorption performance; the polyimide fiber has the advantages of high and low temperature resistance, flame retardance, no molten drop, self-extinguishing after leaving fire, excellent heat insulation, good skin adaptability, permanent flame retardance, stable size, good safety and long service life; the fabric base layer prepared by combining the three materials has good hand feeling and environmental adaptability.
The copper ammonia fiber is a regenerated cellulose fiber, which is prepared by dissolving natural cellulose raw materials such as cotton linters and the like in a concentrated ammonia solution of copper hydroxide or alkaline copper salt to prepare spinning solution, decomposing copper ammonia cellulose molecular chemicals in a coagulating bath to regenerate cellulose, and post-processing the generated hydrated cellulose to obtain the copper ammonia fiber. The section of the cuprammonium rayon is round, the cuprammonium rayon has no skin-core structure, the fiber can bear high stretching, and the prepared monofilament is thin, so that the fabric is soft in hand feeling, soft in luster and real in silk feeling. The moisture absorption of the cuprammonium rayon is close to that of viscose rayon, the official moisture regain of the cuprammonium rayon is 11 percent, the moisture regain can reach 12 percent to 13 percent under the common atmospheric condition, and the cuprammonium rayon has higher dyeing affinity and is darker than the viscose rayon under the same dyeing condition. The dry strength of the cuprammonium fibers is close to that of viscose fibers, but the wet strength is higher than that of the viscose fibers, and the wear resistance is also better than that of the viscose fibers. Because the fiber is fine and soft and has proper luster, the fiber is usually used as high-grade silk fabric or knitted fabric. The clothing has the advantages of excellent wearability, good hygroscopicity, extremely draping feeling, and wearability similar to silk, and conforms to the trend of environmental protection clothing.
The photochromic coating layer is internally provided with ultraviolet isolation substances, anti-infrared nano powder, photosensitive pigment, a defoaming agent and natural rubber, wherein the natural rubber enhances the viscosity of the photochromic coating layer, and the photochromic coating layer is attached to a cloth base layer after being manufactured and is not easy to fall off, so that the service life is prolonged; the ultraviolet isolation substance can isolate ultraviolet rays and is suitable for the weather with stronger ultraviolet rays; the infrared ray-proof nano powder can avoid high-temperature invasion; the combination of the two can isolate ultraviolet ray and avoid overhigh temperature of the umbrella surface.
The polyvinylidene fluoride, the acrylic resin and the polyethylene resin are arranged in the film layer, the surface of the film layer prepared by mixing the polyvinylidene fluoride, the acrylic resin and the polyethylene resin is uniform, the chemical resistance is good, the film layer can adapt to different environments, and the service time is long.
Further preferably, the adhesive layer consists of the following components in parts by weight: 60 parts of natural rubber, 4 parts of photosensitive pigment and 11 parts of anti-aging agent;
the fabric base layer comprises the following components in parts by weight: 65 parts of polyethylene fiber, 8 parts of copper ammonia fiber and 12 parts of polyimide fiber;
the photosensitive color-changing coating layer comprises the following components in parts by weight: 6 parts of ultraviolet isolation substance, 7 parts of anti-infrared nano powder, 10 parts of photosensitive pigment, 4 parts of defoaming agent and 12 parts of natural rubber;
the film layer is composed of the following components in parts by weight: 50 parts of polyvinylidene fluoride, 36 parts of acrylic resin and 11 parts of polyethylene resin.
Furthermore, the photosensitive pigment in the rubber layer is original photosensitive powder OP powder or molybdenum trioxide, and the anti-aging agent is at least one of 6-ethoxy-2, 2, 4-trimethyl-1, 2-dihydroquinoline, 2, 4-trimethyl-1, 2-dihydroquinoline polymer and/or N-phenyl- α -aniline.
Further, the density of the polyethylene fibers in the cloth base layer is 0.95-0.96g/cm3The melting temperature is 130-135 ℃.
Further, the ultraviolet isolation substance in the photochromic coating layer is nano titanium dioxide or nano zinc oxide; the infrared-proof nano powder is nano indium tin oxide; the photosensitive pigment is original photosensitive powder OP powder or molybdenum trioxide; the defoaming agent is at least one of a higher alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether and/or polyoxyethylene polyoxypropylene amine ether. Wherein the high-alcohol fatty acid ester compound is purchased from Hubei Xin Rundy chemical company, the polyoxyethylene polyoxypropylene pentaerythritol Ether is purchased from Hubei Jusheng technology company, and the polyoxyethylene polyoxypropylene amine Ether is purchased from Longnan commercial company, Inc. in Tianjin.
Further, the ultraviolet isolation substance in the photochromic coating layer is nano titanium dioxide; the infrared-proof nano powder is nano indium tin oxide; the photosensitive pigment is molybdenum trioxide; the defoaming agent is a higher alcohol fatty acid ester compound.
The preparation method of the polyethylene umbrella rubberized fabric capable of insulating heat and ultraviolet rays comprises the following steps:
s1, preparing a cloth base layer: uniformly mixing polyethylene fiber, copper ammonia fiber and polyimide fiber in parts by weight in a container, crushing to be more than or equal to 80 meshes, and adding into a screw cylinder
Figure 309243DEST_PATH_IMAGE001
Heating to a molten state, placing the molten material into a mold to form a smooth surface, and obtaining a cloth base layer for later use;
s2 preparing a glue pressing layer: mixing the natural rubber, the photosensitive pigment and the anti-aging agent uniformly in the mixing tank according to the weight parts, defoaming in vacuum to obtain a rubber-pressing layer raw material, and attaching the rubber-pressing layer raw material to the inner surface of the cloth base layer by adopting a gold stamping process;
s3, preparing a photochromic coating layer: uniformly mixing the ultraviolet isolation substance, the anti-infrared nano powder, the photosensitive pigment, the defoaming agent and the natural rubber in the mixing tank according to the weight parts, crushing the mixture to be more than or equal to 300 meshes, and spraying the mixture on the outer surface of the cloth substrate by adopting a powder spraying process;
s4 preparing a film layer: uniformly mixing and melting polyvinylidene fluoride, acrylic resin and polyethylene resin according to the weight parts, and compounding the molten resin on the surface of the photochromic coating layer through hot pressing to obtain the polyethylene umbrella adhesive tape with heat insulation and ultraviolet isolation, wherein the temperature of a gold stamping plate in the gold stamping process of the step S2 is 110-120 ℃, the pressure is 16-18MPa, and the contact time is 0.6-0.8S.
Further, the vacuum degree of the powder spraying process in the step S3 is 150-200Pa, the powder feeding amount is 5-6g/min, the spraying distance is 1000-1200mm, the spraying thickness is 1.5-2.5mm, and the spraying is performed for 5-7 times.
The invention has the beneficial effects that:
1. the polyethylene umbrella adhesive tape capable of insulating heat and ultraviolet rays is prepared by a gold stamping process by designing a pressure adhesive layer, a cloth base layer, a photosensitive color-changing coating layer and a film layer, wherein the pressure adhesive layer is attached to the cloth base layer to serve as the inner surface of the umbrella adhesive tape, different patterns can be designed, photosensitive pigment is contained in the pressure adhesive layer to increase the ornamental value of cloth, natural rubber is contained in the pressure adhesive layer to enhance the viscosity of the pressure adhesive layer, the pressure adhesive layer is attached to the cloth base layer after being manufactured and is not easy to fall off, and the service life is prolonged;
2. the cloth base layer adopts polyethylene fibers, copper ammonia fibers and polyimide fibers, wherein the polyethylene fibers have good toughness and chemical resistance and are suitable for different natural environments; the added copper ammonia fiber enables the fabric to have soft hand feeling, soft luster, real silk feeling and strong moisture absorption performance; the polyimide fiber has the advantages of high and low temperature resistance, flame retardance, no molten drop, self-extinguishing after leaving fire, excellent heat insulation, good skin adaptability, permanent flame retardance, stable size, good safety and long service life; the fabric base layer prepared by combining the three materials has good hand feeling and environmental adaptability;
3. the photochromic coating layer is internally provided with ultraviolet isolation substances, anti-infrared nano powder, photosensitive pigment, a defoaming agent and natural rubber, wherein the natural rubber enhances the viscosity of the photochromic coating layer, and the photochromic coating layer is attached to a cloth base layer after being manufactured and is not easy to fall off, so that the service life is prolonged; the ultraviolet isolation substance can isolate ultraviolet rays and is suitable for the weather with stronger ultraviolet rays; the infrared ray-proof nano powder can avoid high-temperature invasion; the two are combined to isolate ultraviolet rays and avoid overhigh temperature of the umbrella cover;
4. the polyvinylidene fluoride, the acrylic resin and the polyethylene resin are arranged in the film layer, the surface of the film layer prepared by mixing the polyvinylidene fluoride, the acrylic resin and the polyethylene resin is uniform, the chemical resistance is good, the film layer can adapt to different environments, and the service time is long.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.
A polyethylene umbrella adhesive tape for insulating heat and ultraviolet rays is sequentially provided with a pressure glue layer, a cloth base layer, a photosensitive color-changing coating layer and a film layer from inside to outside;
the adhesive pressing layer comprises the following components in parts by weight: 50-80 parts of natural rubber, 3-5 parts of photosensitive pigment and 10-12 parts of anti-aging agent;
the fabric base layer comprises the following components in parts by weight: 60-70 parts of polyethylene fiber, 5-10 parts of copper ammonia fiber and 10-15 parts of polyimide fiber;
the photosensitive color-changing coating layer comprises the following components in parts by weight: 5-8 parts of ultraviolet isolation substances, 5-8 parts of anti-infrared nano powder, 8-12 parts of photosensitive pigment, 3-5 parts of defoaming agent and 10-15 parts of natural rubber;
the film layer is composed of the following components in parts by weight: 45-55 parts of polyvinylidene fluoride, 35-38 parts of acrylic resin and 10-12 parts of polyethylene resin.
Specifically, the pressure glue layer comprises the following components in parts by weight: 60 parts of natural rubber, 4 parts of photosensitive pigment and 11 parts of anti-aging agent;
the fabric base layer comprises the following components in parts by weight: 65 parts of polyethylene fiber, 8 parts of copper ammonia fiber and 12 parts of polyimide fiber;
the photosensitive color-changing coating layer comprises the following components in parts by weight: 6 parts of ultraviolet isolation substance, 7 parts of anti-infrared nano powder, 10 parts of photosensitive pigment, 4 parts of defoaming agent and 12 parts of natural rubber;
the film layer is composed of the following components in parts by weight: 50 parts of polyvinylidene fluoride, 36 parts of acrylic resin and 11 parts of polyethylene resin.
Specifically, the photosensitive pigment in the rubber layer is original photosensitive powder OP powder or molybdenum trioxide, and the anti-aging agent is at least one of 6-ethoxy-2, 2, 4-trimethyl-1, 2-dihydroquinoline, 2, 4-trimethyl-1, 2-dihydroquinoline polymer and/or N-phenyl- α -aniline.
Specifically, the density of polyethylene fibers in the cloth base layer is 0.95-0.96g/cm3The melting temperature is 130-135 ℃.
Specifically, the ultraviolet isolation substance in the photochromic coating layer is nano titanium dioxide or nano zinc oxide; the infrared-proof nano powder is nano indium tin oxide; the photosensitive pigment is original photosensitive powder OP powder or molybdenum trioxide; the defoaming agent is at least one of a higher alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether and/or polyoxyethylene polyoxypropylene amine ether.
Specifically, the ultraviolet isolation substance in the photochromic coating layer is nano titanium dioxide; the infrared-proof nano powder is nano indium tin oxide; the photosensitive pigment is molybdenum trioxide; the defoaming agent is a higher alcohol fatty acid ester compound.
Specific implementation parameters of examples 1 to 6 are shown in table 1, examples 1 to 4 are technical parameters defined in the present invention, the photochromic coating layer in example 5 does not contain an ultraviolet ray isolation substance and an infrared ray preventing nano powder, and the thin film layer in example 6 does not.
Figure 546189DEST_PATH_IMAGE002
The preparation method of the polyethylene umbrella rubberized fabric capable of insulating heat and ultraviolet rays comprises the following steps:
s1, preparing a cloth base layer: uniformly mixing polyethylene fiber, copper ammonia fiber and polyimide fiber in parts by weight in a container, crushing to be more than or equal to 80 meshes, and adding into a screw cylinder
Figure 615777DEST_PATH_IMAGE001
Heating to a molten state, placing the molten material into a mold to form a smooth surface, and obtaining a cloth base layer for later use;
s2 preparing a glue pressing layer: mixing the natural rubber, the photosensitive pigment and the anti-aging agent uniformly in the mixing tank according to the weight parts, defoaming in vacuum to obtain a rubber-pressing layer raw material, and attaching the rubber-pressing layer raw material to the inner surface of the cloth base layer by adopting a gold stamping process;
s3, preparing a photochromic coating layer: uniformly mixing the ultraviolet isolation substance, the anti-infrared nano powder, the photosensitive pigment, the defoaming agent and the natural rubber in the mixing tank according to the weight parts, crushing the mixture to be more than or equal to 300 meshes, and spraying the mixture on the outer surface of the cloth substrate by adopting a powder spraying process;
s4 preparing a film layer: uniformly mixing and melting polyvinylidene fluoride, acrylic resin and polyethylene resin according to the weight parts, and compounding the molten resin on the surface of the photochromic coating layer through hot pressing to obtain the polyethylene umbrella adhesive tape for insulating heat and ultraviolet rays, wherein the temperature of a gold stamping plate in the gold stamping process of the step S2 is 110-120 ℃, the pressure is 16-18MPa, and the contact time is 0.6-0.8S.
Specifically, the vacuum degree of the powder spraying process in the step S3 is 150-200Pa, the powder feeding amount is 5-6g/min, the spraying distance is 1000-1200mm, the spraying thickness is 1.5-2.5mm, and the spraying is performed for 5-7 times.
Specific preparation parameters of examples 1 to 5 are shown in table 2, the technical parameters of the present invention are defined in examples 1 to 4, and the photochromic coating layer in example 5 does not contain the uv-blocking substance and the infrared ray-blocking nanopowder.
Figure 79119DEST_PATH_IMAGE003
In the method for preparing the polyethylene umbrella adhesive tape with heat insulation and ultraviolet isolation in embodiment 6, the adhesive pressing layer is attached to the inner surface of the fabric base layer by using a gold stamping process, and the photochromic coating layer is sprayed on the outer surface of the fabric base layer by using a powder spraying process.
Specifically, the temperature of the gold stamping plate in the gold stamping process is 115 ℃, the pressure is 17MPa, and the contact time is 0.7 s.
Specifically, the vacuum degree of the powder spraying process is 180Pa, the powder feeding amount is 6g/min, the spraying distance is 1150mm, the spraying thickness is 2.0mm, and the spraying is carried out for 7 times.
The properties of the umbrella adhesive tapes prepared in the above examples 1 to 6 are shown in table 3, the technical parameters defined in the present invention are shown in examples 1 to 4, the photochromic coating layer in example 5 does not contain the ultraviolet ray isolating substance and the infrared ray preventing nano powder, and the film layer in example 6 does not.
Figure 157933DEST_PATH_IMAGE004
As can be seen from the data of table 3, the umbrella patches obtained in examples 1 to 5 have better fading properties than those of example 6, and the film layer was not designed in example 6, and the fading was not easily generated in the case of designing the film layer. The transmittance of examples 1 to 4 and 6 is lower than that of example 5, and the example 5 photochromic coating layer does not include the ultraviolet ray blocking substance and the infrared ray preventing nano powder, and thus it can be seen that the ultraviolet ray blocking substance and the infrared ray preventing nano powder can effectively reduce the transmittance of ultraviolet ray and infrared ray. The chemical resistance of examples 1 to 5 was better than that of example 6, and the thin film layer was not designed in example 6.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. A preparation method of a polyethylene umbrella rubberized fabric capable of insulating heat and ultraviolet rays is characterized by comprising the following steps:
s1, preparing a cloth base layer: the cloth base layer comprises the following components in parts by weight: 60-70 parts of polyethylene fiber, 5-10 parts of copper ammonia fiber and 10-15 parts of polyimide fiber, wherein the polyethylene fiber, the copper ammonia fiber and the polyimide fiber are uniformly mixed in a container according to the parts by weight, crushed to be more than or equal to 80 meshes and added into a screw barrel
Figure DEST_PATH_IMAGE002
Heating to a molten state, placing the molten material into a mold to form a smooth surface, and obtaining a cloth base layer for later use;
s2 preparing a glue pressing layer: the adhesive pressing layer comprises the following components in parts by weight: 50-80 parts of natural rubber, 3-5 parts of photosensitive pigment and 10-12 parts of anti-aging agent, uniformly mixing the natural rubber, the photosensitive pigment and the anti-aging agent in a mixing tank according to the parts by weight, defoaming in vacuum to obtain a rubber-pressing layer raw material, and attaching the rubber-pressing layer raw material to the inner surface of a cloth substrate by adopting a gold stamping process, wherein the temperature of a gold stamping plate in the gold stamping process is 110-120 ℃, the pressure is 16-18MPa, and the contact time is 0.6-0.8 s;
s3, preparing a photochromic coating layer: the photosensitive color-changing coating layer comprises the following components in parts by weight: 5-8 parts of ultraviolet isolating substances, 5-8 parts of anti-infrared nano powder, 8-12 parts of photosensitive pigment, 3-5 parts of defoaming agent and 10-15 parts of natural rubber, wherein the ultraviolet isolating substances, the anti-infrared nano powder, the photosensitive pigment, the defoaming agent and the natural rubber are uniformly mixed in a mixing tank according to the parts by weight, crushed to be more than or equal to 300 meshes, and sprayed on the outer surface of the cloth base layer by adopting a powder spraying process, wherein the vacuum degree of the powder spraying process is 150-200Pa, the powder feeding amount is 5-6g/min, the spraying distance is 1000-1200mm, the spraying thickness is 1.5-2.5mm, and the spraying is carried out for 5-7 times;
s4 preparing a film layer: the film layer comprises the following components in parts by weight: 45-55 parts of polyvinylidene fluoride, 35-38 parts of acrylic resin and 10-12 parts of polyethylene resin, uniformly mixing and melting the polyvinylidene fluoride, the acrylic resin and the polyethylene resin according to the parts by weight, and compounding the molten resin on the surface of the photochromic coating layer through hot pressing to obtain the polyethylene umbrella adhesive tape for insulating heat and ultraviolet rays.
2. The preparation method of the polyethylene umbrella coated fabric capable of insulating heat and ultraviolet rays as claimed in claim 1, wherein the pressure glue layer comprises the following components in parts by weight: 60 parts of natural rubber, 4 parts of photosensitive pigment and 11 parts of anti-aging agent;
the fabric base layer comprises the following components in parts by weight: 65 parts of polyethylene fiber, 8 parts of copper ammonia fiber and 12 parts of polyimide fiber;
the photochromic coating layer is composed of the following components in parts by weight: 6 parts of ultraviolet isolation substance, 7 parts of anti-infrared nano powder, 10 parts of photosensitive pigment, 4 parts of defoaming agent and 12 parts of natural rubber;
the film layer comprises the following components in parts by weight: 50 parts of polyvinylidene fluoride, 36 parts of acrylic resin and 11 parts of polyethylene resin.
3. The method for preparing a polyethylene umbrella coated fabric with heat insulation and ultraviolet insulation functions as claimed in claim 1 or 2, wherein the photosensitive pigment in the pressure glue layer is original photosensitive powder OP powder or molybdenum trioxide; the anti-aging agent is 6-ethoxy-2, 2, 4-trimethyl-1, 2-dihydroquinoline and/or 2, 2, 4-trimethyl-1, 2-dihydroquinoline polymer.
4. The method for preparing polyethylene umbrella fabric for thermal insulation and ultraviolet ray insulation according to claim 1 or 2, wherein the density of the polyethylene fiber in the fabric substrate is 0.95-0.96g/cm3The melting temperature is 130-135 ℃.
5. The method for preparing polyethylene umbrella coated fabric with heat insulation and ultraviolet isolation of claim 1 or 2, wherein the ultraviolet isolation substance in the photochromic coating layer is nano titanium dioxide or nano zinc oxide; the infrared-proof nano powder is nano indium tin oxide; the defoaming agent is at least one of a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether and polyoxyethylene polyoxypropylene amine ether.
6. The method for preparing polyethylene umbrella coated fabric with heat insulation and ultraviolet insulation functions as claimed in claim 5, wherein the ultraviolet isolating substance in the photochromic coating layer is nano titanium dioxide; the infrared-proof nano powder is nano indium tin oxide; the photosensitive pigment in the photosensitive color-changing coating layer is molybdenum trioxide; the defoaming agent is a higher alcohol fatty acid ester compound.
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CN105852348A (en) * 2016-05-06 2016-08-17 安徽玉堂雨具有限公司 Sun-shading umbrella
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