CN112538316A - Glass explosion-proof shield membrane and preparation method thereof - Google Patents
Glass explosion-proof shield membrane and preparation method thereof Download PDFInfo
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- CN112538316A CN112538316A CN202011340627.3A CN202011340627A CN112538316A CN 112538316 A CN112538316 A CN 112538316A CN 202011340627 A CN202011340627 A CN 202011340627A CN 112538316 A CN112538316 A CN 112538316A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/20—Accessories, e.g. wind deflectors, blinds
- B60J1/2094—Protective means for window, e.g. additional panel or foil, against vandalism, dirt, wear, shattered glass, etc.
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/387—Block-copolymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/003—Presence of polyurethane in the primer coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
- C09J2483/006—Presence of polysiloxane in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a glass explosion-proof shield membrane and a preparation method thereof. The shield film can be tightly attached to the automobile front windshield with large radian on the basis of protecting the automobile front windshield, has high toughness, cannot cause the glass to be broken and splash even under the action of huge impact, and plays an explosion-proof role; meanwhile, the glass explosion-proof armor film has excellent scratch resistance and ageing resistance, excellent ultraviolet resistance and heat insulation effect, long service life and easy realization of mass production. The preparation method of the novel glass explosion-proof armor membrane is simple in process, and is not easy to generate bubbles and wrinkles in the membrane pasting process, and the novel glass explosion-proof armor membrane is strong in attractiveness and convenient to operate.
Description
Technical Field
The invention relates to an ultraviolet-proof glass film attached to the outer side of a front windshield of an automobile, in particular to an explosion-proof glass shield film and a preparation method thereof.
Background
Conventional protective films for automotive front barriers, i.e., films attached to the interior of an automotive front barrier, provide only a substantial protective effect. When the automobile is completely exposed to the sun, drivers and passengers, automobile interiors and the like can damage the skins of the drivers and passengers and accelerate aging and fading of the automobile interiors and the like after long-time ultraviolet irradiation; the outer side of the front windshield of the automobile is scraped and abraded by a windscreen wiper for a long time, is eroded by wind and rain, and the like, so that the outer side of the windshield is seriously abraded, the sight of a driver is influenced, and once the front windshield is hit by broken stones, the front windshield can be broken and splashed to hurt the driver in the automobile, so that great potential safety hazards are caused; the automobile glass needs to be replaced after being worn by external force, the economic expenditure is high, and the service life is short.
At present, the traditional automobile front windshield has the defects of poor ultraviolet resistance, poor toughness, easy aging, easy abrasion and the like, and the automobile garment films in the current market all adopt PVC (polyvinyl chloride) and TPU (thermoplastic polyurethane elastomer rubber) materials as base materials, can only play a basic protection role on the automobile front windshield, cannot effectively absorb ultraviolet rays, if glass is broken by the impact of broken stones, the protective film can be scratched by glass fragments, the safety performance is low, the automobile front windshield is easy to age, easy to abrade and short in service life, and the popularization of the product is limited.
Disclosure of Invention
In order to solve the problems of the traditional automobile front barrier film mentioned in the background technology, the invention provides a glass explosion-proof armor film and a preparation method thereof. This shield first membrane can closely laminate the big preceding windshield of car of radian on the basis of protecting preceding windshield of car, and toughness is big, receives huge impact and also can not cause glass's breakage to splash, plays explosion-proof effect, also can absorb a large amount of ultraviolet rays simultaneously, plays ageing-resistant effect under the long-time condition of insolate of sun.
The glass explosion-proof armor membrane comprises the following layers which are sequentially laminated:
(1) the silica gel protective film layer is 2-20 mu m thick; the protection effect is achieved;
(2) a scratch-resistant layer (a modified polyurethane hardened coating) with the thickness of 1-30 mu m; has the functions of scraping resistance, fouling resistance and thermal restoration;
(3) the thickness of the base material layer is 20-300 microns, and the base material layer is made of TPU (thermoplastic polyurethane elastomer) or PVC (polyvinyl chloride);
(4) the pressure-sensitive adhesive layer (composed of SBS, SIS, tackifying resin, softening agent, anti-aging agent, coloring agent and the like) is 3-10 μm thick; the function of blocking ultraviolet rays and adhesion is achieved;
(5) the transparent release protective film layer is 16-75 microns thick; can keep the smoothness of the surface of the base material and play a role in protection.
Further, the material of the scratch-resistant layer is wear-resistant polyurethane, and the hardness is as high as 4H.
Further, the visible light wave band transmittance of the base material layer is more than or equal to 45%.
Further, the material of the base material layer is TPU.
Further, the transparent release protection film layer is a PET release film layer, and the smoothness of the surface of the base material can be kept. .
The invention also provides a preparation method of the glass explosion-proof shield membrane, which comprises the following steps:
(1) coating a pressure-sensitive adhesive layer on one side of the base material layer through a coating process, and compounding a release protective film to form a release protective film layer; wherein the base material layer is made of a TPU film or a PVC film; the release protective film mainly plays a role in protecting the substrate layer;
(2) coating a scratch-resistant layer (a modified polyurethane hardened coating) on the other side of the base material layer by a coating process, and compounding a silica gel protective film to form a silica gel protective film layer; the protective effect on the substrate layer is enhanced.
The glass explosion-proof shield membrane can be adhered to the outer side of the front windshield of the automobile, so that the abrasion of the automobile windscreen wiper to the glass can be effectively reduced, the wiping of the windscreen wiper is smoother, the scraping resistance and antifouling property are strong, the thermal restoration performance is good, and the service life of the windscreen wiper is prolonged; the glass cannot be broken to harm the safety of people in the vehicle even if the vehicle is impacted by external foreign matters, and the vehicle-mounted anti-explosion vehicle has strong toughness, strong stretchability and good anti-explosion performance; can absorb ultraviolet rays to the maximum extent, avoids the skin damage of drivers and passengers in the automobile and the interior decoration of the automobile from fading and aging under the long-time irradiation of the sun, and has good heat insulation effect.
The invention has the following beneficial effects:
compared with the prior art, the glass explosion-proof shield membrane provided by the invention has the advantages of moderate thickness, strong flexibility and strong stretchability, and can be tightly attached to the front windshield of an automobile; the coating with the UV blocking rate of 97.5 percent is coated in the pressure-sensitive adhesive, so that the anti-aging performance is good, and the safety and explosion-proof performance is high.
The preparation method of the novel glass explosion-proof shield membrane provided by the invention has a simple process, and the used base material is TPU (thermoplastic polyurethane elastomer) or PVC (polyvinyl chloride), so that the stretchability is high, the flexibility is strong, the elasticity is good, when the glass is impacted, the broken glass can be effectively prevented from splashing in the vehicle, and the safety and explosion-proof performance are high, so that the personal safety in the vehicle can be effectively protected; fine scratches caused by the scratch of the broken stones can be automatically repaired at high temperature (under the irradiation of the sun) (the TPU has compact molecular arrangement and higher molecular density, and when the position of the coating molecule is changed, the TPU is loosened by heating and returns to the original position, namely the purpose of thermal repair is achieved); bubbles and wrinkles are not easy to generate in the film pasting process, the appearance is strong, and the operation is convenient and fast; meanwhile, the glass explosion-proof armor film has excellent scratch resistance and ageing resistance, excellent ultraviolet resistance and heat insulation effect, long service life and easy realization of mass production.
Drawings
FIG. 1 is a schematic layer structure diagram of a glass explosion-proof armor film.
Fig. 2 is a photograph of actual measurement data of the glass explosion-proof shield film subjected to a barrier rate (transmittance) test by using an LS182 solar film tester.
Fig. 3 is a photograph of the glass explosion-proof armor film before tensile test.
Fig. 4 is a photograph of the glass explosion-proof armor film after tensile test.
FIG. 5 is a load-deformation graph of a tensile test of a glass explosion-proof armor film.
The reference signs explain: 1-silica gel protective film layer, 2-scratch resistant layer, 3-substrate layer, 4-pressure sensitive layer and 5-transparent release protective film layer.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
The following describes in detail the preparation steps of the glass explosion-proof armor film of the present invention:
(1) firstly, providing a silica gel protective film layer 1;
(2) providing a transparent flexible TPU film and a PVC film as a substrate layer 3;
(3) and a pressure-sensitive adhesive layer 4 with the ultraviolet ray blocking function is coated on one side of the substrate layer 3 in a winding type coating and gluing line mode, and a transparent release type protective film layer 5 is compounded. The purpose of the composite transparent release protective film layer 5 is to protect the TPU film and the PVC film from being stretched and deformed under the condition of the tension of 250-300N and protect the smoothness of the surface of the base material;
(4) and coating the scratch-resistant layer 2 on the other side of the substrate layer 3 in a winding coating joint line mode at a coating speed of 20 m/min, and compounding the silica gel protective film layer 1. The scratch-resistant layer 2 has the functions of scratch resistance, antifouling, heat repair and ultraviolet ray blocking; the silica gel protective film layer 1 plays a role in enhancing the protection of the TPU film and the PVC film.
The scratch-resistant layer 2 is a coating prepared by a self-repairing coating LD107 and a curing agent LD06 of Nuobijia optical materials Co.
Fig. 1 is a schematic structural diagram of the prepared glass explosion-proof shield membrane, and the membrane layer structure of the glass explosion-proof shield membrane sequentially comprises:
(1) a silica gel protective film layer with the thickness of 20 μm;
(2) a scratch-resistant layer having a thickness of 8 μm;
(3) a substrate layer having a thickness of 150 μm;
(4) a pressure sensitive adhesive layer having a thickness of 8 μm;
(5) and the thickness of the transparent release protective film layer is 75 microns.
An LS182 solar film tester is used for testing the ultraviolet ray blocking rate, the infrared ray blocking rate and the visible light transmittance of the glass explosion-proof shield nail film, the test result is shown in figure 2, and the test result shows that the UV (ultraviolet ray) blocking rate of the glass explosion-proof shield nail film reaches 97.5 percent and the visible light transmittance reaches 88.1 percent; the ultraviolet ray blocking performance of the glass explosion-proof shield shell film provided by the invention is excellent.
The glass explosion-proof shield membrane is subjected to tensile property test, and the test result is shown in fig. 3 and 4, the glass explosion-proof shield membrane can be stretched to about one time of the original length and can be kept without fracture and crack; as shown in FIG. 5, the glass explosion-proof armor film can withstand the peeling force of 1300-1900 gf; the glass explosion-proof armor film provided by the invention has the advantages of high toughness, high stretchability and high safety.
Therefore, the glass explosion-proof shield membrane provided by the invention has high reflectivity to ultraviolet rays, high toughness and excellent explosion-proof performance; meanwhile, the glass explosion-proof armor film also has good ageing resistance and scratch resistance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The glass explosion-proof armor membrane is characterized by comprising the following layers which are sequentially stacked:
(1) the silica gel protective film layer is 2-20 mu m thick;
(2) a scratch-resistant layer with a thickness of 1-30 μm;
(3) the thickness of the base material layer is 20-300 microns, and the base material layer is made of TPU or PVC;
(4) the thickness of the pressure-sensitive adhesive layer is 3-10 mu m;
(5) the transparent release protective film layer has a thickness of 16-75 μm.
2. The glass explosion-proof shield membrane of claim 1, wherein: the material of the scratch-resistant layer is wear-resistant polyurethane, and the hardness is as high as 4H.
3. The glass explosion-proof shield membrane of claim 1, wherein: the visible light wave band transmittance of the base material layer is more than or equal to 45 percent.
4. The glass explosion-proof shield membrane of claim 1, wherein: the material of the substrate layer is TPU.
5. The glass explosion-proof shield membrane of claim 1, wherein: the transparent release protective film layer is a PET release film layer.
6. The method for preparing the glass explosion-proof shield shell membrane as claimed in claim 1, which is characterized by comprising the following steps:
(1) coating a pressure-sensitive adhesive layer on one side of the base material layer through a coating process, and compounding a transparent release protective film to form a release protective film layer; wherein the base material layer is made of a TPU film or a PVC film;
(2) and coating a scratch-resistant layer on the other side of the substrate layer through a coating process, and compounding a layer of silica gel protective film to form a silica gel protective film layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823555 | 2020-08-17 | ||
| CN2020108235551 | 2020-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112538316A true CN112538316A (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011340627.3A Pending CN112538316A (en) | 2020-08-17 | 2020-11-25 | Glass explosion-proof shield membrane and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113025228A (en) * | 2021-04-09 | 2021-06-25 | 九江力达科技有限公司 | Heating composite color-changing film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206326931U (en) * | 2016-08-08 | 2017-07-14 | 广州市雷曼兄弟电子科技有限公司 | A kind of explosive-proof protector film |
| CN207014936U (en) * | 2017-07-07 | 2018-02-16 | 南京汇鑫光电材料有限公司 | A kind of new type explosion proof film |
| CN109837028A (en) * | 2019-02-21 | 2019-06-04 | 宁波激智科技股份有限公司 | A kind of colored varnish surface protective film and its application |
| CN111040653A (en) * | 2019-12-13 | 2020-04-21 | 湖北航天化学技术研究所 | High-wear-resistance glass anti-explosion film adhesive with anti-fog effect and preparation method thereof |
-
2020
- 2020-11-25 CN CN202011340627.3A patent/CN112538316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206326931U (en) * | 2016-08-08 | 2017-07-14 | 广州市雷曼兄弟电子科技有限公司 | A kind of explosive-proof protector film |
| CN207014936U (en) * | 2017-07-07 | 2018-02-16 | 南京汇鑫光电材料有限公司 | A kind of new type explosion proof film |
| CN109837028A (en) * | 2019-02-21 | 2019-06-04 | 宁波激智科技股份有限公司 | A kind of colored varnish surface protective film and its application |
| CN111040653A (en) * | 2019-12-13 | 2020-04-21 | 湖北航天化学技术研究所 | High-wear-resistance glass anti-explosion film adhesive with anti-fog effect and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113025228A (en) * | 2021-04-09 | 2021-06-25 | 九江力达科技有限公司 | Heating composite color-changing film and preparation method thereof |
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