CN112932786B - Full-sealed goggles - Google Patents
Full-sealed goggles Download PDFInfo
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- CN112932786B CN112932786B CN202110145143.1A CN202110145143A CN112932786B CN 112932786 B CN112932786 B CN 112932786B CN 202110145143 A CN202110145143 A CN 202110145143A CN 112932786 B CN112932786 B CN 112932786B
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- Prior art keywords
- silicone rubber
- frame
- vapor permeable
- moisture vapor
- fully sealed
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- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/02—Goggles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/02—Goggles
- A61F9/025—Special attachment of screens, e.g. hinged, removable; Roll-up protective layers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/02—Goggles
- A61F9/028—Ventilation means
Abstract
The invention discloses a full-sealed goggles, which comprises lenses, a lens frame for carrying the lenses, a sealing element for sealing and leaning against the face of a wearer and a frame for connecting the lens frame and the sealing element, wherein the lenses are made of plastics, the lens frame is made of plastics or silicon rubber, the frame is made of silicon rubber, the sealing element is made of silicon rubber, the plastics and the silicon rubber are integrally formed by hot vulcanization and adhesion, one or more moisture vapor permeable structures are embedded in the frame in a seamless manner, the moisture vapor permeable structure is a compact silicon rubber film or a silicon rubber film without through holes with the aperture larger than 100nm, and the thickness of the silicon rubber film is 0.005-0.5 mm. The goggles do not contain vent holes through which liquid or solid particles can pass, but have a moisture vapor permeable structure, and the vapor generated by eyes is discharged through the vapor permeability of the silicone rubber film and is well attached to the faces of people, so that the goggles are fully sealed, have the advantages of preventing saliva from splashing, dust, water and blood from passing through, preventing bacteria and viruses from passing through, preventing irritant gas from entering the eyes, being repeatedly used after high-temperature sterilization and disinfection, and the like, and can be safely used in occasions such as chemical workshops and hospitals.
Description
Technical Field
The invention belongs to the technical field of glasses, and relates to goggles, in particular to sports goggles such as goggles for sanitary protection and swimming goggles for laboratories, workshops and hospitals.
Background
It is often particularly desirable to protect the eyes during laboratory chemical experiments, or during production in chemical and chemical workshops, where it is desirable to wear eye shields or goggles. Because the components of the prior eye mask or goggles are often assembled, gaps exist among the components to a greater or lesser extent, so that the components are easy to deform when external conditions occur, the components cannot be tightly connected, gaps are generated, gaps among the components become larger with time in the use process, and harmful liquid or irritant gas is easy to enter the eye mask, so that the eye mask or the goggles are harmful to human bodies.
When a doctor performs an operation, in order to prevent liquid medicine and blood of a patient from splashing on the face or in eyes to cause infection or other injuries, the doctor needs to wear the protective eye mask, and the protective eye mask can be generally matched with a mask, an operation cap and the like for use, so that the head of the doctor is comprehensively protected.
However, in some conventional medical goggles, the components are assembled and are subject to deformation when external conditions change, and gaps between the components become larger during use, resulting in reduced protection. In addition, two or four different ventilation holes are also provided in some conventional goggles for medical use, so that when the goggles are worn by a human body, although water vapor generated from the eyes and other parts can be easily discharged from the ventilation holes of the goggles, external gas, liquid and solid particles can easily enter the goggles from the ventilation holes. In addition, since the shore a hardness of the soft plastic or soft rubber portion in contact with the human face is not low in some conventional medical goggles, the shore a hardness value is often 50 or more, so that when the goggles are worn by a person, the goggles are difficult to be closely attached to the human face, and the use is uncomfortable.
The chinese patent application No. 03237806.8 discloses a protective eye shield comprising an eye shield frame and lenses embedded in grooves formed on the inner side of the front end of the eye shield frame having a certain depth, which can cover both eyes and be attached to the periphery of both eyes. The direct mechanical combination mode of this kind of lens and eye-shade frame after long-time use, the junction produces the gap easily, and spray or liquid are possible to get into inside the glasses from the gap, and this kind of protective eye-shade need soak in the liquid medicine when disinfection treatment, can not directly use repeatedly through high temperature sterilization disinfection, and then also increased use cost and shortened life.
In order to improve the seal between the combined eyewear lenses and the frame, the skilled person has devised several approaches. The chinese patent document of application No. 201910565299.8 discloses a goggle comprising: a lens assembly: including preceding lens and back lens, preceding lens periphery is equipped with inlays the recess, inlay the inside sealing strip that is equipped with of recess, back lens periphery and preceding lens inlay recess periphery looks adaptation, back lens passes through the sealing strip and forms an organic wholely with preceding lens complex. The use of the sealing strip is an innovative point in the patent document, but the use of the sealing strip causes poor air permeability and cannot timely discharge moisture in goggles.
Disclosure of Invention
In view of the above problems, the present invention provides a full-sealed goggle, which is capable of achieving excellent sealing properties between the lens, the frame and the sealing members, and between the goggle and the face of a person, and simultaneously discharging moisture in the goggle in a desirable state in time by utilizing the characteristics of a silicone rubber film in a manner of directly seamlessly joining or bonding the respective portions of the lens, the frame and the sealing members into one body without using vent holes or using sealing strips.
The invention provides a full-sealed goggles, which comprises a lens, a lens frame for bearing the lens, a sealing element for sealing and leaning against the face of a wearer and a frame for connecting the lens frame and the sealing element, wherein the lens is made of plastic, the lens frame is made of plastic or silicon rubber, the frame is made of silicon rubber, the sealing element is made of silicon rubber, the plastic and the silicon rubber are integrally formed by thermal vulcanization and adhesion, one or more moisture-permeable structures are embedded in the frame in a seamless manner, and the moisture-permeable structure is a compact silicon rubber film or a silicon rubber film without through holes with the aperture larger than 100 nm.
In some embodiments, the thickness of the silicone rubber film that can be used in the present invention is 0.005 to 0.5mm. Among them, silicone rubber is one of the polymer materials having the highest water vapor transmission rate. The invention has the creative point that the characteristic of high water vapor transmittance of the silicone rubber is utilized to achieve the purpose that the water vapor generated by eyes permeates the silicone rubber. When the thickness of the silicone rubber is relatively thin, or when the silicone rubber becomes a silicone rubber film of sufficiently thin thickness (not more than 0.50 mm), the amount of moisture passing through the film will increase significantly, allowing moisture generated by the eyes to pass through the silicone rubber film without producing liquid that condenses on the lenses within the goggles.
In some embodiments, illustrative examples of moisture vapor permeable structures that can be used in the present invention include, but are not limited to, circles, ovals, rectangles, regular polygons, or trapezoids with circumscribed circles having a diameter of 0.5mm or greater.
In some embodiments, the moisture vapor permeable structures that can be used in the present invention are distributed in the frame as a dispersion or as a collection.
In some embodiments, the moisture vapor permeable structures that can be used in the present invention are randomly distributed discretely or symmetrically about the frame.
In some embodiments, the moisture vapor permeable structures that can be used in the present invention are distributed in one or more places in a plurality of clusters in the frame.
In some embodiments, the height of the ribs between two adjacent moisture vapor permeable structures that can be used in the present invention is greater than or equal to 2 times the thickness of the moisture vapor permeable structures, the width of the ribs being from 0.2 mm to 2.0mm.
In some embodiments, illustrative examples of silicone rubber films that can be used in the present invention include, but are not limited to, planar surfaces, curved surface structures, or a combination of planar and curved surface structures.
In some embodiments, illustrative examples of curved structures that can be used in the present invention include, but are not limited to, wavy, conical, spherical, ellipsoidal, cylindrical, or refractive, etc., or a combination of planar and these curved structures. In moisture vapor permeable structures, these curved surfaces have a larger specific surface area than the planar surfaces.
In some embodiments, the lens assemblies that can be used in the present invention are constructed from plastics, including general purpose plastics and engineering plastics, which can be selected to produce lenses with good mechanical and heat resistance properties. However, the use of a common plastic such as transparent polyvinyl chloride, polypropylene, polystyrene, etc. for making lenses is not precluded.
In some embodiments, illustrative examples of plastics that can be used in the present invention include, but are not limited to, clear polymethyl methacrylate, polycarbonate, polyethylene terephthalate, nylon, polysulfone, acrylonitrile-styrene copolymer, poly 4-methyl-1-pentene, polyallyldiethylene glycol carbonate, polyvinyl chloride, polypropylene, polystyrene, or phenolic resins.
In some embodiments, the plastic that can be used in the present invention has a light transmittance of no less than 75% and the silicone rubber that can be used in the present invention has a light transmittance of no less than 50%;
in some embodiments, no or a small amount of blue light-blocking agents, fragrances, colorants, photochromic or thermochromic agents can be included in the plastics or silicone rubber used in the present invention to add additional functionality to the goggles. Wherein, the goggles containing the photochromic agent can prevent sunlight (when sunlight exists, the lenses containing the photochromic agent can be changed from colorless to colored to absorb part of sunlight), the goggles added with the flavoring agent have fragrance so as to be loved by people, and the goggles containing the coloring agent can have beautiful color.
In some embodiments, the silicone rubber that can be used in the present invention is bonded to a plastic via thermal vulcanization.
In some embodiments, the failure mode of the initial bond between the plastic and silicone rubber of the present invention and the bond failure mode after a high temperature high humidity aging test at 85 ℃ and a relative humidity of 85% for 168 hours are cohesive failure, and the area of the silicone rubber residue on the plastic bonding surface when the silicone rubber is pulled or peeled off from the plastic is not less than 10% of the total bonding area. The plastic bonding surface has residual rubber of the silicon rubber, which indicates that the bonding failure mode of the plastic and the silicon rubber is cohesive failure rather than interfacial failure, and the bonding between the plastic and the silicon rubber is compact and firm.
In some embodiments, the silicone rubber that can be used in the present invention is formed from a combination of two or more silicone rubbers of different hardness.
In some embodiments, the silicone rubber that can be used in the sealing element of the present invention has a lower hardness than the silicone rubber of the frame and bezel.
In some embodiments, the silicone rubber that can be used in the sealing element of the present invention has a shore a hardness of 0 to 60 and the silicone rubber of the frame and bezel has a shore a hardness of 40 to 90.
In some embodiments, the failure mode of the initial adhesion between the silicone rubbers of different hardness and the adhesion failure mode after a high temperature high humidity aging test at 85 ℃ and a relative humidity of 85% for 168 hours, which can be used in the present invention, are cohesive failure, and the area of the residual rubber of the silicone rubber with lower hardness on the surface of the silicone rubber with higher hardness is not less than 10% of the total adhesion area.
In some embodiments, at least one of the outer or inner surfaces of the plastic that can be used in the present invention has a scratch-resistant, abrasion-resistant coating, hydrophilic coating or hydrophobic coating with a thickness of no greater than 2 μm, and/or has an anti-fog coating with a thickness of no greater than 1 μm.
In some embodiments, the outer surface of the silicone rubber that can be used in the present invention is treated by a UV-modifier, the friction coefficient of the outer surface of the UV-modifier treated silicone rubber being less than half the friction coefficient of the silicone rubber prior to treatment.
In some embodiments, the outer surface of the silicone rubber that can be used in the present invention has a coating of an elastic feel coating, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a coating of an elastic feel coating, the elastic feel coating having a coating thickness of no more than 20 μm, or the outer surface of the silicone rubber has a coating of parylene, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a coating of parylene, the parylene coating thickness of no more than 5 μm, or the outer surface of the silicone rubber has a teflon coating, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a teflon coating, the teflon coating thickness of no more than 5 μm.
In some embodiments, the frame further comprises a strap removably connected to the frame or integrally formed therewith.
In some embodiments, the laces that can be used in the present invention are constructed of silicone rubber.
In some embodiments, a frame that can be used in the goggles of the invention is provided with 10-20 moisture vapor permeable structures having a thickness of 0.05mm of silicone rubber film, each having an area of between 20-80mm 2, the silicone rubber film of the moisture vapor permeable structure being circular or oval in shape, the moisture vapor permeable structures being symmetrically distributed on the frame of the goggles about the midline of the bridge as an axis of symmetry.
In some embodiments, the moisture vapor permeable structures that can be used in the present invention are in a focused distribution on the frame of the goggles, where two or more regular hexagonal silicone rubber films with a side length of 1.0-5.0mm are gathered together at two or more locations on the frame of the goggles, the thickness of the silicone rubber films is 0.01-0.1mm, the width of the edges between two adjacent silicone rubber films is 0.25-1.0mm, and the height of the edges is 0.2-2.0mm.
The beneficial effects are that: the goggles formed by plastic and silicone rubber do not contain vent holes through which liquid or solid particles can pass, but have a moisture vapor permeable structure, and the vapor generated by eyes is discharged through the vapor permeability of the silicone rubber film and well attached to the faces of people, so that the goggles are fully sealed, have the advantages of preventing saliva from splashing, dust and water, preventing blood from passing through, preventing bacteria and viruses from passing through, preventing irritant gas from entering the eyes, being repeatedly used after high-temperature sterilization and disinfection, and the like, and can be safely used in chemical workshops, hospitals and other occasions.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a full-sealed goggle according to the present invention.
Fig. 2 is a schematic partial structure of a full-sealed goggles according to the present invention.
Fig. 3 is a schematic structural view of a full-sealed goggles according to the present invention.
Fig. 4 is a schematic partial structure of a full-sealed goggles according to the present invention.
Fig. 5 is a schematic structural view of a full-sealed goggles according to the present invention.
Fig. 6 is a schematic partial structure of a full-sealed goggle according to the present invention.
Fig. 7 is a schematic structural view of a full-sealed goggles according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Examples
As shown in fig. 1, a full-sealed goggle is composed of a lens 1 made of a colorless transparent engineering plastic polycarbonate, a frame 2 made of a silicone rubber having a shore a hardness of 50, a frame 4 made of a silicone rubber having a shore a hardness of 50, which is connected to the frame, and a sealing member 6 contacting the face of the wearer. In the goggles, the silicone rubber material of the lens frame 2 and the polycarbonate material of the lens 1 are bonded by a thermal vulcanization molding process. On the silicone rubber frame 4, there are 10 circular silicone rubber films with diameters between 5.0mm and 7.5mm and thicknesses between 0.03mm and 0.05mm, as shown in fig. 2, the silicone rubber films are positioned on the inner surface of the frame 4 (i.e. the surface close to the face of a person when worn), and on the frame 4, there are two bayonets 3 made of silicone rubber material for installing binding bands;
the polycarbonate lens 1 and the silicone rubber frame 2 are formed by hot vulcanization to obtain a firmly bonded composite. The methods for preparing such complexes are two.
Method 1: the silicone rubber used for producing the silicone rubber frame 2 was produced from addition type liquid silicone rubbers KE-1950-5A and B manufactured by the Japanese Kogyo Co. Before the polycarbonate lens 1 and the silicone rubber frame 2 are heat-vulcanization molded, the portion of the polycarbonate lens 1 to be bonded to the silicone rubber (this portion is located at the periphery of the polycarbonate lens 1) is treated with an adhesion promoter. The adhesion promoters (or treatments) used are commercially available. This example uses liquid silicone adhesive PC treating agent KJ-770-50X9-60C from Shenzhen Kogaku adhesive materials Co., ltd. The processing method comprises the following steps: firstly, cleaning the lens, then uniformly brushing a thin layer of adhesion promoter KJ-770-50X9-60C on the interface to be bonded, which is required to be bonded with silicon rubber, on the periphery of the polycarbonate lens 1, airing at room temperature (airing time is 2 hours), and curing the adhesion promoter KJ-770-50X9-60C on the surface of the polycarbonate lens 1 to form a film. The obtained carbonate lens 1 is placed into a mold cavity, the component A and the component B are uniformly mixed by a liquid silicone rubber injection molding machine and injected into the mold cavity, the temperature of the mold cavity is 120 ℃, and the mold cavity is taken out after 120 seconds, so that a compound body of the polycarbonate lens 1 and silicone rubber (comprising the silicone rubber frame 4) is obtained, namely the full-sealed goggles in the invention.
Method 2: the silicone rubber used to prepare the silicone rubber frame 2 is a self-adhesive liquid silicone rubber commercially available. The method adopts PC self-adhesive liquid silicone rubber KL-F6050A rubber and B rubber of Kanglibang technology Co.Ltd in Shenzhen city. In this method, the polycarbonate lens 1 is kept clean or is used with cleaning, and no adhesion promoter is needed. The clean polycarbonate lens 1 is placed into a die cavity with the temperature of 120 ℃, KL-F6050A adhesive and B adhesive are uniformly mixed and injected into the die cavity, and the die is removed after 120 seconds, so that a compound body of the polycarbonate lens 1 and silicone rubber (comprising the silicone rubber frame 4) is also obtained, and the full-sealed goggles are also provided in the invention.
In the goggles obtained by the two methods, the failure mode of initial adhesion between plastic (polycarbonate) and silicon rubber and the adhesion failure mode after a high-temperature high-humidity aging test with the temperature of 85 ℃ and the relative humidity of 85 percent and the time of 168 hours are cohesive failure; when the silicone rubber is pulled or peeled off from the plastic, the residual rubber area of the silicone rubber on the surface of the plastic is not less than 10% of the total bonding area, which indicates that the bonding between the plastic and the silicone rubber is compact and firm.
Placing the goggles obtained in the embodiment into a high-temperature steam sterilization pot, staying for 30min at 121-126 ℃, taking out, and repeating the operation for 10 times. The goggles tested were inspected and found to be intact, the adhesion between the silicone rubber and plastic was firm, and the moisture vapor permeable structure was free of any cracks.
Comparative example 1:
comparative example 1 goggles were prepared as in example 1, except that the polycarbonate lens 1 was not treated with any adhesion promoter or treatment agent prior to thermoforming with liquid silicone rubber. The adhesive force between the silicone rubber and the polycarbonate lens in the obtained goggles is very low, the silicone rubber and the lens can be separated by hands, and the lens has no silicone rubber residual glue. The goggles have extremely poor service performance, and the components are easy to separate, so that the full-sealing requirement of the goggles cannot be met.
Comparative example 2
The goggles made in comparative example 2 were identical to the goggles described in example 1, except that the goggles made in comparative example 2 did not have any moisture vapor permeable structure.
We compare goggles made in example 1, comparative example 1 and comparative example 2.
Tap water was respectively contained in the goggles prepared in example 1 and the goggles prepared in comparative example 2. The goggles are horizontally placed on the desktop, the lenses are arranged below, the glasses frame faces upwards, and the tap water is just contained until the tap water does not overflow the goggles. Within 24 hours, tap water did not leak or seep from the goggles, nor from the moisture vapor permeable structure of the goggles made in example 1. Tap water was contained in the goggles made in comparative examples 1 and 2, respectively, and tap water was not oozed out of the goggles made in comparative example 2, but was found to ooze out of the junction of the silicone rubber and the plastic in the goggles made in comparative example 1, as observed within 24 hours.
A small amount of dry ice was contained in the goggles obtained in example 1, and no penetration of mist generated by dry ice from the moisture vapor permeable structure of the goggles obtained in example 1 was found.
The goggles prepared in example 1 and the goggles prepared in comparative example 2 were worn by workers in a five-position vulcanizing shop for 4 hours, respectively, and as a result, it was found that the lenses of the goggles prepared in example 1 and the inner and outer surfaces of the silicone rubber frame were dry and the transparency of the lenses was good. The inner surface of the lens and the inner surface of the silicone rubber frame of the goggles manufactured in comparative example 2 were not dry, and fog drops were formed on the lens, and the transparency of the lens was adversely affected.
Examples
As shown in fig. 3, a full-sealed goggle is composed of a lens 1 made of engineering plastic polycarbonate, a frame 2 made of silicone rubber, a frame 4 connected with the frame and a sealing element 6 contacted with the face of a person, wherein the silicone rubber frame 4 is provided with 10 moisture vapor permeable structures, the moisture vapor permeable structures are circular silicone rubber films with diameters of 2.5-5mm and thicknesses of 0.1mm, and the frame 4 is provided with two strap bayonets 3 made of silicone rubber materials and used for installing straps. As shown in fig. 4, the silicone rubber membrane is located on the outer surface of the frame 4 (i.e. the side facing away from the face of the person when worn).
The shore a hardness of the silicone rubber used for the frame 4 in contact with the face of the person is 10±2, and the shore a hardness of the silicone rubber of the frame 2, the frame 4 connected with the frame, the moisture vapor permeable structure 5 and the strap bayonet 3 is 60±2.
In this embodiment, the polycarbonate lens 1 and the silicone rubber frame 2 are firmly bonded to each other by hot vulcanization molding. In the goggles, the initial adhesion failure mode between the polycarbonate and the silicon rubber and the adhesion failure mode after a high-temperature high-humidity aging test with the temperature of 85 ℃ and the relative humidity of 85% and the time of 168 hours are cohesive failure; when the silicone rubber is pulled off or peeled off from the polycarbonate, the area of the residual rubber of the silicone rubber on the surface of the polycarbonate is not less than 10% of the total bonding area; in goggles, the silicone rubber is formed by combining two or more silicone rubbers with different hardness, the adhesion between the silicone rubbers with different hardness is firm, the initial adhesion failure mode between the silicone rubbers with different hardness and the adhesion failure mode after high-temperature high-humidity aging test with the temperature of 85 ℃ and the relative humidity of 85% and the time of 168h are cohesive failure, and the area of the residual rubber of the silicone rubber with smaller hardness on the surface of the silicone rubber with higher hardness is not less than 10% of the total adhesion area.
Examples
As shown in fig. 5, a full-sealed goggle is composed of a lens 1 made of engineering plastic polycarbonate, a frame 2 made of silicone rubber, a frame 4 connected with the frame and a sealing element 6 contacted with the face of a person, wherein the silicone rubber frame 4 is provided with 10 moisture vapor permeable structures, the moisture vapor permeable structures are diamond-shaped silicone rubber films with the thickness of 0.1mm, and the frame 4 is provided with two strap bayonets 3 made of silicone rubber materials and used for installing straps. As shown in fig. 6, the silicone rubber film is located at the middle position of the frame 4.
The shore a hardness of the silicone rubber used for the frame 4 in contact with the face of the person is 10±2, and the shore a hardness of the silicone rubber of the frame 2, the frame 4 connected with the frame, the moisture vapor permeable structure 5 and the strap bayonet 3 is 60±2.
In this embodiment, the polycarbonate lens 1 and the silicone rubber frame 2 are firmly bonded to each other by hot vulcanization molding. In the goggles, the failure mode of initial adhesion between engineering plastics and silicone rubber and the adhesion failure mode after a high-temperature high-humidity aging test with the temperature of 85 ℃ and the relative humidity of 85% and the time of 168 hours are cohesive failure; when the silicone rubber is pulled off or stripped from the engineering plastic, the area of the residual rubber of the silicone rubber on the surface of the engineering plastic is not less than 10% of the total bonding area; in goggles, the silicone rubber is formed by combining two or more silicone rubbers with different hardness, the adhesion between the silicone rubbers with different hardness is firm, the initial adhesion failure mode between the silicone rubbers with different hardness and the adhesion failure mode after high-temperature high-humidity aging test with the temperature of 85 ℃ and the relative humidity of 85% and the time of 168h are cohesive failure, and the area of the residual rubber of the silicone rubber with smaller hardness on the surface of the silicone rubber with higher hardness is not less than 10% of the total adhesion area.
Examples
A totally enclosed goggle is the same as that described in example 1 except that the moisture vapor permeable structure is formed by combining 4 square films having a side length of 2.0mm and a thickness of 0.01-0.1mm in a manner of a Chinese character 'tian', the width of the rib between the adjacent films being 0.50mm and the height of the rib being 1.0mm.
Examples
A fully sealed goggle is the same as that described in example 1 except that the moisture vapor permeable structure is formed by combining regular hexagonal films having a side length of 2.0mm and a thickness of 0.01-0.1mm in a honeycomb-like manner, the width of the rib between the adjacent films is 0.50mm, and the height of the rib is 1.0mm.
Examples
As shown in fig. 7, the structure of the goggles of this embodiment is the same as that of embodiment 1, except that there is no strap mount for mounting the strap, but a silicone rubber strap 7 having a width of about 6.0mm, a thickness of about 1.0mm and a length of 35-45mm is attached to the original mount, and the silicone rubber strap and the frame are the same.
Examples
The structure of the goggles of this example was the same as that of example 1, except that the outer surface of the silicone rubber of the goggles was UV-modified by a UV-modifying machine. The UV modification treatment is to modify the surface of the silicone rubber by ultraviolet light (UV) with specific wavelength, so that oxygen in the air and the surface of the silicone rubber react chemically, and the chemical composition and physical properties of the surface of the silicone rubber are changed.
In the UV modification treatment of the present invention, 112 branches of length 7 are used simultaneouslyA low-pressure mercury lamp of 25mm and power 160W was used as a UV light source to irradiate the rotating silicone rubber surface, each UV light source having a wavelength of 185-254nm. The irradiation time of the UV light source is 30-120 minutes until the static friction coefficient of the outer surface of the silicone rubber is reduced to half or less than that before the irradiation. The UV light with wavelength of 254nm irradiates the surface of the silicon rubber, after the surface of the silicon rubber absorbs the UV external light with wavelength, the main bond and the side bond of the surface layer molecule of the silicon rubber are cut off, and the oxygen in the atmosphere generates ozone O after absorbing the ultraviolet photon with wavelength of 185nm 3 And atomic oxygen O, O produced 3 The ultraviolet light with 254nm wavelength is strongly absorbed, ozone is decomposed into oxygen and atomic oxygen under the action of photons, and the atomic oxygen can be combined with the cut surface molecules due to extremely active atomic oxygen, so that oxygen-containing functional groups (such as-OH, -C=O, -CHO, -COOH and the like) are formed on the surface of the silicone rubber, and the properties of the surface of the silicone rubber such as hand feeling, friction coefficient and the like are changed.
The static friction coefficient of the silicone rubber before UV modification is about 1.2, and the static friction coefficient of the outer surface of the silicone rubber of the goggles after UV modification is about 0.4-0.5.
Examples
A fully sealed goggle is the same as that described in example 1, but with two differences:
one difference is that the lens 1 is made of a polycarbonate resin or a polyvinyl chloride resin containing a photochromic agent, the photochromic agent used is a photochromic agent OP powder, and the content of the OP powder is 0.5wt% to 1.0wt%. After irradiation with sunlight or ultraviolet rays, the lens 1 absorbs the energy of sunlight or ultraviolet rays, and the OP powder generates a change in molecular structure, resulting in a change in absorption wavelength, thereby generating a change in color. When sunlight or ultraviolet rays are lost, the OP powder restores the original molecular structure and becomes the original color.
The second difference is that the silicone rubber frame 4 and the moisture vapor permeable structure 5 contain a transparent blue colorant. The blue colorant is phthalocyanine blue, and the content of the phthalocyanine blue is 0.01-0.5 wt%.
The goggles formed by plastic and silicone rubber in the embodiment of the invention do not contain vent holes through which liquid or solid particles can pass, but have a moisture vapor permeable structure, and the vapor generated by eyes is discharged through the vapor permeability of the silicone rubber film and well attached to the faces of people, so that the goggles are fully sealed, have the advantages of preventing saliva from splashing, dust and water, preventing blood from passing through, preventing bacteria and viruses from passing through, preventing irritant gas from entering the eyes, being repeatedly used after high-temperature sterilization and disinfection, and the like, and can be safely used in chemical workshops, hospitals and other occasions.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. It will be apparent to those skilled in the art from this disclosure that various other variations and modifications in materials or shapes are possible, such as making lenses from plastic to lenses from plastic film, plastic sheet, glass or quartz. Obvious changes and modifications which are extended by the technical proposal of the invention are still within the protection scope of the invention.
Claims (18)
1. The full-sealed goggles are characterized by comprising lenses, a lens frame for carrying the lenses, a sealing element for sealing and leaning against the face of a wearer and a frame for connecting the lens frame and the sealing element, wherein the lens frame is made of plastic or silicon rubber, the frame is made of silicon rubber, the sealing element is made of silicon rubber, the plastic and the silicon rubber are formed into a whole through heat vulcanization bonding, one or more moisture vapor permeable structures are embedded in the frame in a seamless manner, and the moisture vapor permeable structure is a compact silicon rubber film or a silicon rubber film without through holes with the aperture larger than 100 nm; the thickness of the silicone rubber film is 0.005 to 0.5mm; the moisture vapor permeable structure is one or more of a circle, an ellipse, a rectangle, a regular polygon or a trapezoid with the diameter of the circumscribing circle being more than or equal to 0.5mm; the moisture vapor permeable structure is distributed on the frame in a dispersing way or in an aggregating way; the silicon rubber film is in a plane, a curved surface structure or a combination of the plane and the curved surface structure.
2. A fully sealed goggle according to claim 1, wherein said moisture vapor permeable structure is in the form of one or more clusters distributed about said frame.
3. A fully sealed goggle according to claim 1, wherein the moisture vapor permeable structure is randomly discretely or symmetrically distributed over the frame.
4. A fully sealed goggle according to claim 1, wherein the height of the rib between two adjacent moisture vapor permeable structures is greater than or equal to 2 times the thickness of the moisture vapor permeable structures, and the width of the rib is 0.2-2.0mm.
5. A fully sealed goggle according to claim 1, wherein the curved surface structure is one or more of wavy, conical, spherical, ellipsoidal, cylindrical or folded.
6. A fully sealed goggle according to claim 1, wherein said plastic comprises a general purpose plastic and an engineering plastic.
7. A fully sealed goggle according to claim 6, wherein the plastic is one or more of transparent polymethyl methacrylate, polycarbonate, polyethylene terephthalate, nylon, polysulfone, acrylonitrile-styrene copolymer, poly 4-methyl-1-pentene, polyallyldiethylene carbonate, polyvinyl chloride, polypropylene, polystyrene, or phenolic resin.
8. A fully sealed goggle according to claim 6, wherein said plastic has a light transmittance of not less than 75% and said silicone rubber has a light transmittance of not less than 50%.
9. A fully sealed goggle according to claim 6, wherein the plastic contains no or little blue light protection agent, fragrance, colorant, photochromic agent or thermochromic agent.
10. A fully sealed goggle according to claim 1, wherein the silicone rubber is formed by combining two or more silicone rubbers of different hardness.
11. A fully sealed goggle according to claim 10, wherein the silicone rubber of the sealing member has a lower hardness than the silicone rubber of the frame and the bezel.
12. A fully sealed goggle according to claim 10, wherein the silicone rubber of the sealing member has a shore a hardness of 0 to 60 and the silicone rubber of the frame and the frame has a shore a hardness of 40 to 90.
13. A fully sealed goggle according to claim 10, wherein the mode of failure of the initial bond between silicone rubbers of different hardness and the mode of bond failure after a high temperature high humidity aging test at 85 ℃ and a relative humidity of 85% for 168 hours are both cohesive failure, the area of the residual rubber of the silicone rubber of lesser hardness on the surface of the silicone rubber of greater hardness being not less than 10% of the total bond area.
14. A fully sealed goggle according to claim 1, wherein at least one of the outer or inner surfaces of the plastic has a scratch-resistant, abrasion-resistant coating, hydrophilic or hydrophobic coating, and/or an anti-fog coating having a thickness of no more than 2 μm.
15. A fully sealed goggle according to claim 14, wherein the outer surface of the silicone rubber is treated by a UV modifier, the UV modifier treated outer surface of the silicone rubber having a coefficient of friction less than half the coefficient of friction of the silicone rubber prior to treatment.
16. A fully sealed goggle according to claim 14, wherein the outer surface of the silicone rubber has a coating of an elastic feel coating, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a coating of an elastic feel coating, the elastic feel coating having a coating thickness of no more than 20 μm, or the outer surface of the silicone rubber has a coating of parylene, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a coating of parylene, the parylene coating thickness is no more than 5 μm, or the outer surface of the silicone rubber has a coating of teflon, or the outer surface of the silicone rubber other than the moisture vapor permeable structure has a coating of teflon, the teflon coating thickness is no more than 5 μm.
17. A fully sealed goggle according to claim 1, further comprising a strap removably attached to or integrally formed with the frame.
18. A fully sealed goggle according to claim 17, wherein said harness is comprised of silicone rubber.
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