CN112839125A - Handheld mobile equipment protective sleeve with virus killing function and preparation process thereof - Google Patents

Handheld mobile equipment protective sleeve with virus killing function and preparation process thereof Download PDF

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Publication number
CN112839125A
CN112839125A CN202011633034.6A CN202011633034A CN112839125A CN 112839125 A CN112839125 A CN 112839125A CN 202011633034 A CN202011633034 A CN 202011633034A CN 112839125 A CN112839125 A CN 112839125A
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parts
layer
weight
water
phase change
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CN202011633034.6A
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CN112839125B (en
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曹文
吴银隆
杨柳
王聪
林雨标
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Shenzhen Jiean Nano Composite Material Co ltd
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Shenzhen Jiean Nano Composite Material Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/17—Hygienic or sanitary devices on telephone equipment
    • 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
    • B32B27/06—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
    • B32B27/08—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 of synthetic resin
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H04M1/185—Improving the rigidity of the casing or resistance to shocks
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20381—Thermal management, e.g. evaporation control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Abstract

The invention relates to a handheld mobile equipment protective sleeve with a virus killing function, which sequentially comprises a virus killing paint layer, an anti-sweat paint layer, a water-proof film layer, an adhesive layer and a base plate layer; the sterilizing paint layer comprises 90-95 parts by weight of nano silver-copper alloy mixed particles, 7-9 parts by weight of peony root bark extract and 3-5 parts by weight of zirconium oxide powder; the sweat-proof paint layer comprises 75-80 parts by weight of sodium polyacrylate and 5-10 parts by weight of glycerol; the waterproof membrane layer is arranged in a hollow mode, a solid-liquid phase change agent is arranged in the waterproof membrane layer, and the phase change critical point of the solid-liquid phase change agent is 10-15 ℃; the base plate is bonded with the water-resisting film layer through the adhesive layer. Above-mentioned handheld mobile device protective sheath possesses can effectively prevent sweat, directly kills bacterium and virus to can accelerate the advantage below the cooling to the normal atmospheric temperature.

Description

Handheld mobile equipment protective sleeve with virus killing function and preparation process thereof
Technical Field
The invention relates to the field of accessories of handheld mobile equipment, in particular to a protective sleeve of the handheld mobile equipment with a virus killing function and a preparation process thereof.
Background
With the development of science and technology, handheld mobile devices such as mobile phones, tablet computers, PSP game machines, MP4, navigators and the like are used very commonly in daily life and work, even as indelible tools, but these mobile devices are inevitably scratched in the using process or the mobile devices are accidentally dropped on the ground in use, which may lead to damage of the mobile devices and unavailability in severe cases, and at this time, protective cases are required.
The protective sleeves on the market currently have the following disadvantages: (1) the existing protective sleeve has poor sweat-proof effect, and for users with more sweat on palms, the mobile equipment is in risk of slipping off; (2) although some protective sleeves with antibacterial function exist in the market at present, bacteria can only inhibit the rapid propagation of the bacteria when the bacteria come in from the outside, and the bacteria cannot be completely killed, so that no product capable of directly killing the bacteria and viruses exists in the protective sleeves in the market at present; (3) after the protective sleeve is installed, the heat dissipation effect of the mobile equipment is worse, and electronic components in the mobile equipment are easy to lose efficacy or damage under a high-temperature state after being used for a long time.
Disclosure of Invention
The invention aims to provide a protective sleeve for handheld mobile equipment, which can effectively prevent sweat, directly kill bacteria and viruses and accelerate the temperature reduction to be below the normal temperature.
In order to realize the purpose of the invention, the technical scheme is as follows: a handheld mobile equipment protective sleeve with a virus killing function sequentially comprises a virus killing paint layer, an anti-sweat paint layer, a water-proof film layer, an adhesive layer and a base plate layer from top to bottom; the sterilizing paint layer comprises 90-95 parts by weight of nano silver-copper alloy mixed particles, 7-9 parts by weight of peony root bark extract and 3-5 parts by weight of zirconium oxide powder; the sweat-proof paint layer comprises 75-80 parts by weight of sodium polyacrylate and 5-10 parts by weight of glycerol; a cavity is arranged in the water-resisting membrane layer, a solid-liquid phase change agent is arranged in the cavity, and the phase change critical point of the solid-liquid phase change agent is 10-15 ℃; the substrate plate layer is bonded with the water-resisting film layer through the adhesive layer.
Further, the disinfectant paint layer comprises 1-3 parts of aluminum oxide powder in parts by weight.
Further, the material of the water-proof film layer is any one of polytetrafluoroethylene, thermoplastic polyurethane elastomer rubber or polyurethane.
Further, the adhesive layer is any one of an acrylate adhesive, a polyurethane adhesive or a butyl adhesive.
Further, the material of the substrate plate layer is any one of polydicyclopentadiene, silica gel or polycarbonate.
Further, the solid-liquid phase change agent comprises 13 parts by weight of beryllium chloride tetrahydrate, 6 parts by weight of barium chloride dihydrate, 2 parts by weight of silicon dioxide, 5 parts by weight of crotonic acid, 3 parts by weight of potassium chloride and 15 parts by weight of water.
Further, the solid-liquid phase change agent comprises, by weight, 30 parts of beryllium chloride tetrahydrate, 9 parts of barium chloride dihydrate, 2 parts of silicon dioxide, 5 parts of maleic anhydride, 7 parts of sodium acetate, 9 parts of potassium chloride and 40 parts of water.
On the other hand, the invention also provides a manufacturing process of the protective sleeve of the handheld mobile equipment, which comprises the following steps:
s1: vacuum forming, namely fixing a substrate plate above a mold, heating the substrate plate to a softening state by using a radiation heater, moving the mold to the softened substrate plate, forming a cavity between the mold and the softened substrate plate, pumping air in the cavity by using a vacuum pump, and covering the softened substrate plate on the mold by using atmospheric pressure to form a semi-finished product of the protective sleeve;
s2: demoulding, namely placing the mould covered with the semi-finished product of the protective sleeve in a cooling device, and separating the semi-finished product of the protective sleeve from the mould by compressed air;
s3: coating adhesive, namely coating adhesive on one side of the protective sleeve semi-finished product;
s4: pasting a water-proof film, filling a solid-liquid phase change agent with a phase change critical point of 10-15 ℃ into the hollow water-proof film, sealing after bubble removal treatment, and then adhering the hollow water-proof film to one side of the semi-finished product of the protective sleeve coated with the adhesive;
s5: and spraying paint, namely spraying sweat-proof paint and sterilizing paint on one side of the water-resisting film, which is far away from the base plate, in sequence to obtain a finished product of the protective sleeve.
The invention has the beneficial effects that:
1. according to the invention, a certain amount of nano silver-copper alloy particles are added into the bactericidal paint layer, at a conventional temperature, only copper metal atoms exposed on the outer surface can be oxidized (the internal copper metal atoms are not oxidized), silver metal atoms are not oxidized (the silver metal atoms are not easily oxidized at a low temperature and are easily oxidized only at a high temperature, which is the physical characteristic of the silver metal), so that the conductive performance and the bactericidal performance of the alloy material are better, the more excellent the conductive performance of the material is, the stronger the interference capability on a biological electric field of microorganisms is, the stronger the capability of killing the microorganisms is, and therefore, superbacteria and viruses can be killed; a certain amount of zirconium oxide is added into the disinfecting paint layer, the zirconium oxide can induce air negative ions, and the negative ions can sterilize, disinfect, deodorize and keep fresh; the peony root bark extract in the disinfection paint layer contains various active substances such as paeonol, gallic acid, quercetin, tannic acid, theaflavin and the like, so the peony root bark extract can resist bacteria (escherichia coli, staphylococcus aureus, salmonella, listeria and the like), fungi (black mold, blue mold and the like), fungi (bacteria causing tinea, candida, acne pathogenic bacteria and the like) and viruses (foot-and-mouth disease virus, bird flu and the like).
2. Glycerin is taken as a cross-linking agent, and polyacrylic acid sodium salt is subjected to cross-linking reaction to synthesize the super absorbent resin which can absorb water which is hundreds of times to thousands of times of the self weight, and is non-toxic, harmless and pollution-free; the absorbed water can not be extruded by a simple physical method and can repeatedly release and absorb water, thereby fully absorbing sweat on the palm of a user and ensuring that the protective sleeve is dry and has no sweat residue.
3. According to the invention, the solid-liquid phase change agent with the phase change critical point of 10-15 ℃ is filled in the water-resisting film, then the water-resisting film is bonded with the substrate plate, after the arrangement, when the mobile electronic equipment is in a high-temperature heating state due to long-time use, the solid-liquid phase change agent is changed from a solid state to a liquid state, and the heat emitted by the mobile electronic equipment is absorbed in the process, so that the mobile electronic equipment can be continuously cooled.
Drawings
FIG. 1 is a layered view of a protective cover construction according to an embodiment of the present invention.
In the figure, a biocidal paint layer 100; a sweat-resistant paint layer 200; a water-barrier film layer 300; an adhesive layer 400; a base plate layer 500.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, further details of a protective cover for a handheld mobile device with a virus killing function and a manufacturing process thereof are provided. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1, a protective cover for a handheld mobile device with a virus killing function sequentially includes, from top to bottom, a virus killing paint layer 100, an anti-sweat paint layer 200, a water-proof film layer 300, an adhesive layer 400, and a substrate board layer 500.
The anti-virus paint layer 100 comprises 90 parts by weight of nano silver-copper alloy mixed particles, 9 parts by weight of peony root bark extract and 5 parts by weight of zirconia powder.
The antiperspirant layer 200 comprises 75 parts by weight of sodium polyacrylate and 10 parts by weight of glycerin.
The waterproof and breathable waterproof film layer 300 is made of polytetrafluoroethylene, a cavity is arranged in the waterproof film layer 300, and a solid-liquid phase-change agent is arranged in the cavity, so that the phase change conversion process of the solid-liquid phase-change agent is always carried out in the waterproof film layer 300, the solid-liquid phase-change agent comprises 13 parts by weight of beryllium chloride tetrahydrate, 6 parts by weight of barium chloride dihydrate, 2 parts by weight of silicon dioxide, 5 parts by weight of crotonic acid, 3 parts by weight of potassium chloride and 15 parts by weight of water, the phase change critical point of the solid-liquid phase-change agent adopting the formula is 10 ℃, when the mobile electronic equipment is in a high-temperature heating state due to long-time use, the solid-liquid phase-change agent is changed into a liquid state through the solid-liquid phase-change agent, heat emitted by the mobile electronic equipment is absorbed in the process, and.
The adhesive layer 400 is an acrylate adhesive, and the adhesive is a waterproof adhesive and has a good waterproof effect. Prevent to receive sweat, rainwater etc. to influence for a long time and make protective sheath split and split.
The material of base plate layer 500 is polydicyclopentadiene, this kind of material can be heat-resisting, cold-resistant, acid and alkali-resistance, flexural modulus 1790 ~ 2070MPa, tensile strength 34MPa, thermal deformation temperature 185.5 ℃, the toughness of this kind of material is obviously superior to the material commonly used among the prior art, consequently there is not very fragile problem of material in the protective sheath base plate of doing with this kind of material, the protective sheath can not appear breaking along with long-time use, the life extension of protective sheath, base plate layer 500 passes through the acrylic ester gluing agent and bonds with water barrier film layer 300.
Example two
Referring to fig. 1, a protective cover for a handheld mobile device with a virus killing function sequentially includes, from top to bottom, a virus killing paint layer 100, an anti-sweat paint layer 200, a water-proof film layer 300, an adhesive layer 400, and a substrate board layer 500.
The anti-virus paint layer 100 comprises 95 parts by weight of nano silver-copper alloy mixed particles, 7 parts by weight of peony root bark extract and 3 parts by weight of zirconia powder.
The anti-sweat paint layer 200 comprises 80 parts by weight of sodium polyacrylate and 5 parts by weight of glycerin.
The waterproof and breathable waterproof membrane layer 300 is made of thermoplastic polyurethane elastomer rubber, a cavity is arranged in the waterproof membrane layer 300, and a solid-liquid phase-change agent is arranged in the cavity, so that the phase change conversion process of the solid-liquid phase-change agent is always carried out in the waterproof membrane layer 300, the solid-liquid phase-change agent comprises, by weight, 30 parts of beryllium chloride tetrahydrate, 9 parts of barium chloride dihydrate, 2 parts of silicon dioxide, 5 parts of maleic anhydride, 7 parts of sodium acetate, 9 parts of potassium chloride and 40 parts of water, the phase change critical point of the solid-liquid phase-change agent adopting the formula is 15 ℃, when the mobile electronic equipment is in a high-temperature heating state due to long-time use, the solid-liquid phase-change agent is changed into a liquid state through the solid-liquid phase-change agent, heat emitted by the mobile electronic equipment is absorbed in the process, and the mobile electronic equipment can be cooled continuously.
The adhesive layer 400 is a polyurethane adhesive, which is a waterproof adhesive and has a good waterproof effect. Prevent to receive sweat, rainwater etc. to influence for a long time and make protective sheath split and split.
The substrate plate layer 500 is made of silica gel, and the substrate plate layer 500 is bonded to the water-stop film layer 300 through a polyurethane adhesive.
EXAMPLE III
Referring to fig. 1, a protective cover for a handheld mobile device with a virus killing function sequentially includes, from top to bottom, a virus killing paint layer 100, an anti-sweat paint layer 200, a water-proof film layer 300, an adhesive layer 400, and a substrate board layer 500.
The anti-virus paint layer 100 comprises 93 parts by weight of nano silver-copper alloy mixed particles, 8 parts by weight of peony root bark extract and 4 parts by weight of zirconia powder.
The antiperspirant layer 200 comprises 77 parts of sodium polyacrylate and 8 parts of glycerol by weight.
The waterproof and breathable waterproof film layer 300 is made of polyurethane, a cavity is arranged in the waterproof film layer 300, and a solid-liquid phase-change agent is arranged in the cavity, so that the phase change conversion process of the solid-liquid phase-change agent is always performed in the waterproof film layer 300, the solid-liquid phase-change agent comprises 13 parts by weight of beryllium chloride tetrahydrate, 6 parts by weight of barium chloride dihydrate, 2 parts by weight of silicon dioxide, 5 parts by weight of crotonic acid, 3 parts by weight of potassium chloride and 15 parts by weight of water, the phase change critical point of the solid-liquid phase-change agent adopting the formula is 10 ℃, when the mobile electronic equipment is in a high-temperature heating state due to long-time use, the solid-liquid phase-change agent is changed into a liquid state through the solid-liquid phase-change agent, heat emitted by the mobile electronic equipment is absorbed in the process, and the.
Viscose layer 400 is butyl rubber, and this gluing agent is the waterproof glue, has fine water-proof effects, prevents to receive influences such as sweat, rainwater for a long time to make the protective sheath split to glue and split.
The substrate plate layer 500 is made of polycarbonate, and the substrate plate layer 500 is bonded to the water-stop film layer 300 through a polyurethane adhesive.
Comparative example 1
Compared with the first embodiment, the disinfectant paint layer 100 is not sprayed, and the rest is the same.
Comparative example No. two
Compared with the first embodiment, the water-stop film layer 300 filled with the phase change agent is not provided, and the rest is the same.
The product antibacterial/virus performance test is carried out by GB/T31402-2015
Figure BDA0002880536700000071
The comparison shows that the protective sleeves in the three embodiments of the invention have excellent sterilization and virucidal capabilities, and the comparative example also has excellent sterilization and virucidal capabilities, because a certain amount of nano silver-copper alloy particles are added into the sterilization paint layer 100, when the protective sleeves are cooled at low temperature, only copper metal atoms exposed on the outer surface can be oxidized (internal copper metal atoms are not oxidized), silver metal atoms are not oxidized (silver metal atoms are not easily oxidized at low temperature and are easily oxidized only at high temperature, which is the physical property of silver metal), so that the conductive performance and the bactericidal performance of the alloy material are better, the more excellent the conductive performance of the material is, the stronger the interference capability on a biological electric field of microorganisms is, the stronger the capability of killing the microorganisms is, and the superbacteria and viruses can be killed; a certain amount of zirconium oxide is added into the sterilizing paint layer 100, and when the refrigerator works, the zirconium oxide can induce air negative ions which can sterilize, disinfect, deodorize and keep fresh; the peony root bark extract in the poisoning paint layer 100 contains various active substances such as paeonol, gallic acid, quercetin, tannic acid, theaflavin and the like, so that the peony root bark extract can resist bacteria (escherichia coli, staphylococcus aureus, salmonella, listeria and the like), fungi (black mold, blue mold and the like), fungi (bacteria causing tinea, candida, acne pathogenic bacteria and the like) and viruses (foot-and-mouth disease virus, avian influenza and the like).
Product heat dispersion test
Figure BDA0002880536700000081
It can be known from the above comparison that when the protective covers of the first embodiment, the second embodiment, the third embodiment and the first comparative example are installed on the back of the handheld mobile device, the heat dissipation efficiency can be ensured to be more than 50%, because when the mobile electronic device is in a high-temperature heating state due to long-time use, the solid-liquid phase-change agent is changed from the solid state to the liquid state, and the heat dissipated by the mobile electronic device is absorbed in the process, so that the mobile electronic device can be continuously cooled, and in addition, in winter, the mobile electronic device is usually cold when being used, and the solid-liquid phase-change agent is changed from the liquid state to the solid state, and the heat is released in the process, so that the mobile electronic device is not cold when being used; in contrast to the comparative example, the protective cover of the comparative example does not substantially have any heat dissipation effect because the water-blocking film layer 300 filled with the phase change agent is not provided, which is not favorable for normal operation of the electronic components inside the mobile electronic device and is easy to fail or damage.
In another aspect, the present invention provides a process for manufacturing a protective cover of a handheld mobile device in the first to third embodiments, including the following steps:
s1: vacuum forming, namely fixing a substrate plate above a mold, heating the substrate plate to a softening state by using a radiation heater, moving the mold to the softened substrate plate, forming a cavity between the mold and the softened substrate plate, pumping air in the cavity by using a vacuum pump, and covering the softened substrate plate on the mold by using atmospheric pressure to form a semi-finished product of the protective sleeve;
s2: demoulding, namely placing the mould covered with the semi-finished product of the protective sleeve in a cooling device, and separating the semi-finished product of the protective sleeve from the mould by compressed air;
s3: coating adhesive, namely coating adhesive on one side of the protective sleeve semi-finished product;
s4: pasting a water-proof film, filling a solid-liquid phase change agent with a phase change critical point of 10-15 ℃ into the hollow water-proof film, sealing after bubble removal treatment, and then adhering the hollow water-proof film to one side of the semi-finished product of the protective sleeve coated with the adhesive;
s5: and spraying paint, namely spraying sweat-proof paint and sterilizing paint on one side of the water-resisting film, which is far away from the base plate, in sequence to obtain a finished product of the protective sleeve.
It should be noted that in the film pasting process, any one of a spraying process, a co-extrusion process, and an in-mold film coating process may be selected, as long as the fixing of the film pasting is satisfied, and the method is not limited herein.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A handheld mobile equipment protective sleeve with a virus killing function is characterized by sequentially comprising a virus killing paint layer (100), an anti-sweat paint layer (200), a water-proof film layer (300), an adhesive layer (400) and a base plate layer (500) from top to bottom;
the sterilizing paint layer (100) comprises 90-95 parts by weight of nano silver-copper alloy mixed particles, 7-9 parts by weight of peony root bark extract and 3-5 parts by weight of zirconium oxide powder;
the sweat-proof paint layer (200) comprises 75-80 parts by weight of sodium polyacrylate and 5-10 parts by weight of glycerol;
a cavity is arranged in the water-proof film layer (300), a solid-liquid phase change agent is arranged in the cavity, and the phase change critical point of the solid-liquid phase change agent is 10-15 ℃;
the substrate plate layer (500) is bonded with the water-proof film layer (300) through the adhesive layer (400).
2. The protective case for handheld mobile devices of claim 1, wherein the anti-virus paint layer (100) further comprises 1-3 parts by weight of alumina powder.
3. The protective sheath for handheld mobile devices of claim 1, wherein the water-proof film layer (300) is made of one of polytetrafluoroethylene, thermoplastic polyurethane elastomer rubber or polyurethane.
4. The protective cover for handheld mobile devices of claim 1, wherein the adhesive layer (400) is any one of an acrylate adhesive, a polyurethane adhesive, or a butyl adhesive.
5. The protective sheath for handheld mobile devices of claim 1, wherein the material of the substrate layer (500) is any one of polydicyclopentadiene, silica gel, or polycarbonate.
6. The handheld mobile device case of claim 1, wherein the solid-liquid phase change agent comprises, in parts by weight, 13 parts beryllium chloride tetrahydrate, 6 parts barium chloride dihydrate, 2 parts silica, 5 parts crotonic acid, 3 parts potassium chloride, and 15 parts water.
7. The handheld mobile device case of claim 1, wherein the solid-liquid phase change agent comprises, in parts by weight, 30 parts beryllium chloride tetrahydrate, 9 parts barium chloride dihydrate, 2 parts silica, 5 parts maleic anhydride, 7 parts sodium acetate, 9 parts potassium chloride, and 40 parts water.
8. A process for manufacturing a protective cover for a handheld mobile device according to any one of claims 1 to 8, comprising the steps of:
s1: vacuum forming, namely fixing a substrate plate above a mold, heating the substrate plate to a softening state by using a radiation heater, moving the mold to the softened substrate plate, forming a cavity between the mold and the softened substrate plate, pumping air in the cavity by using a vacuum pump, and covering the softened substrate plate on the mold by using atmospheric pressure to form a semi-finished product of the protective sleeve;
s2: demoulding, namely placing the mould covered with the semi-finished product of the protective sleeve in a cooling device, and separating the semi-finished product of the protective sleeve from the mould by compressed air;
s3: coating adhesive, namely coating adhesive on one side of the protective sleeve semi-finished product;
s4: pasting a water-proof film, filling a solid-liquid phase change agent with a phase change critical point of 10-15 ℃ into the hollow water-proof film, sealing after bubble removal treatment, and then adhering the hollow water-proof film to one side of the semi-finished product of the protective sleeve coated with the adhesive;
s5: and spraying paint, namely spraying sweat-proof paint and sterilizing paint on one side of the water-resisting film, which is far away from the base plate, in sequence to obtain a finished product of the protective sleeve.
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