CN111016340A - All-weather, one-way and visible bulletproof and explosion-proof glass and preparation method thereof - Google Patents
All-weather, one-way and visible bulletproof and explosion-proof glass and preparation method thereof Download PDFInfo
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- CN111016340A CN111016340A CN201911392893.8A CN201911392893A CN111016340A CN 111016340 A CN111016340 A CN 111016340A CN 201911392893 A CN201911392893 A CN 201911392893A CN 111016340 A CN111016340 A CN 111016340A
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- Joining Of Glass To Other Materials (AREA)
Abstract
The invention discloses all-weather one-way visible bulletproof and explosion-proof glass and a preparation method thereof. This all-weather, one-way visual, shellproof explosion-proof glass, the PVB film is filled in the recess and the cladding is in the outside of metal mesh, utilizes the PVB film to fix both together, and the metal mesh avoids the glass splash under glass receives the effect of external force, has increaseed the holding capacity on glass surface simultaneously, separates into a plurality of little glasses with a monoblock glass, and blast-proof effect is better, has viscosity big, absorbs the kinetic energy that high-speed object strikes and can all-weather advantage of high low temperature application in full territory.
Description
Technical Field
The invention relates to bulletproof and explosion-proof glass and a preparation method thereof, in particular to all-weather one-way visible bulletproof and explosion-proof glass and a preparation method thereof.
Background
With the continuous development of the international market and the national defense and civil industrial protection needs in China, the requirements of various high-speed locomotives and armored vehicles on front windshield protection, aircraft cabin glass, field hospitals and field command centers on safety protection are continuously increased, and the requirements of various high-performance bulletproof, explosion-proof, high-impact-resistance, one-way visual and more advanced bulletproof and explosion-proof ratio materials are more and more urgent.
Most of bulletproof glass in the market at present is formed by compounding PVB + glass + an explosion-proof film through a high-pressure kettle, and the PVB film belongs to an acidic substance, so that the bulletproof glass only has bulletproof performance above 10 ℃, can generate low-temperature embrittlement below 5 ℃, does not have all-weather bulletproof and explosion-proof capabilities, and particularly has the serious performance reduction of zero in winter in the north due to the ultralow temperature, thereby seriously influencing the requirement of safety protection, and being a serious hidden danger and threat to military combat equipment.
Disclosure of Invention
The invention aims to provide all-weather one-way visible bulletproof and explosion-proof glass and a preparation method thereof, which have the advantages of high viscosity, absorption of kinetic energy of high-speed object impact and all-weather application at high and low temperatures in all territories, and solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the all-weather one-way visible bulletproof and explosion-proof glass comprises an outermost electric heating glass substrate and an innermost electric conductive glass, wherein the inner surface of the electric heating glass substrate is printed with an electric conductive grid, one surface of the electric heating glass substrate, which is positioned on the electric conductive grid, is covered with a first KPG film, the electric heating glass substrate is connected with the one-way glass through the first KPG film, the other surface of the one-way glass is covered with a second KPG film, the one-way glass is connected with a first clear glass through the second KPG film, the other surface of the first clear glass is fixed with a metal net, one surface of the first clear glass, which is positioned on the metal net, is covered with a PVB film, the other surface of the first clear glass is connected with a second clear glass through the PVB film, the second clear glass is provided with a groove, and the other surface of the second clear glass is covered with a first TPU film; the conductive glass is covered with a second TPU film, the conductive glass is connected with the PC board through the second TPU film, and the PC board is connected with the first TPU film.
Furthermore, the depth of the groove is matched with the thickness of the metal net, the metal net is placed in the groove, and the PVB film is filled in the groove and covers the outer portion of the metal net.
Furthermore, the outer layers of the electric heating glass substrate and the conductive glass are respectively stuck with an explosion-proof membrane, and the explosion-proof membrane is a multilayer polyester composite membrane formed by lamination, and the thickness of the explosion-proof membrane is more than 250 micrometers.
Furthermore, the electrically heated glass substrate, the conductive grid and the conductive glass form a closed loop, and a resistance heating belt is formed after high-temperature curing.
The invention provides another technical scheme, an all-weather, unidirectional visible, bulletproof and explosion-proof glass and comprises the following steps;
s1: pouring the prepared glass liquid into corresponding moulds to respectively prepare each layer of common plate glass, cleaning and drying the common plate glass by using purified water, heating the common plate glass in a heating furnace to a temperature close to the softening temperature of the glass, eliminating internal stress through self deformation, then removing the glass out of the heating furnace, blowing high-pressure cold air to two sides of the glass by using a multi-head nozzle, and rapidly and uniformly cooling the glass to room temperature to prepare tempered glass;
s2: feeding toughened glass into a hot press chamber, preheating, prepressing a transparent conductive film layer on the side surface of the toughened glass by magnetron sputtering, and feeding the toughened glass into a vacuum coating chamber to respectively prepare an electrically heated glass substrate and the conductive glass, preheating the toughened glass, and covering one surface of the toughened glass with unidirectional glass prepared by a unidirectional coating;
s3: after a groove is formed in the second clear glass, the metal net is placed in the groove, a PVB film is filled in a gap between the groove and the metal net and is sent into a laminating chamber, the PVB film is laminated between two adjacent pieces of glass and then is sent into a hot press chamber, and the laminated glass is formed through preheating, prepressing and laminating;
s4: sequentially coating and superposing the KGP film and the TPU film on a plurality of glass layers through a dust-free workshop, and preheating and rolling at 80-120 ℃ in a preheating press to preliminarily bond the glass with the PC plate, the KGP film and the TPU film and remove large bubbles;
s5: and (3) putting the preliminarily bonded glass layer on a silica gel vacuum bag, moving the silica gel vacuum bag into a closed high-pressure kettle, closing a door of the cabin, heating the cabin to 130-140 ℃, increasing the air pressure to 1.2Mpa, preserving the heat for 3 hours, removing all bubbles, and enabling the glass sheet and the PC board to be tightly attached to prepare a finished product.
Further, explosion-proof membranes are pasted on two surfaces of the finished product S5, and the explosion-proof membranes are made by mixing a polycarbonate layer and a polymethyl methacrylate layer.
Compared with the prior art, the invention has the beneficial effects that:
the all-weather one-way visible bulletproof and explosion-proof glass and the preparation method thereof have the advantages that the electric heating glass substrate, the conductive grid and the conductive glass form a closed loop, a resistance heating band is formed after high-temperature curing, the effect of heating the electric heating glass substrate to generate heat and achieve the effects of defogging and defrosting can be clearly seen no matter in foggy days or frost and snow days, the one-way glass adopts a glass cleaning magnetron sputtering one-way reflection film layer to achieve one-way visibility, the confidentiality effect of the glass is improved, the PVB film is filled in the groove and coated outside the metal mesh, the PVB film is used for fixing the two together, the metal mesh avoids glass from splashing under the action of external force on the glass, the bearing force on the surface of the glass is increased, a whole piece of glass is divided into a plurality of small pieces of glass, the explosion-proof effect is better, and the viscosity is high, absorb the kinetic energy of the impact of high-speed objects and can be applied to all-weather high and low temperatures in all regions.
Drawings
FIG. 1 is an overall layer diagram of the present invention;
FIG. 2 is a schematic view of a first clear glass and a second clear glass of the present invention;
fig. 3 is a view showing the structure of the metal mesh of the present invention.
In the figure: 1. electrically heating the glass substrate; 11. a conductive mesh; 12. a first KPG film; 2. a conductive glass; 21. a second TPU film; 3. unidirectional glass; 31. a second KPG film; 4. first clear glass; 41. a metal mesh; 5. PVB film; 6. second clear glass; 61. a groove; 7. a first TPU film; 8. a PC board; 9. an explosion-proof membrane.
Detailed Description
The technical scheme in the embodiment of the invention will be made clear below by combining the attached drawings in the embodiment of the invention; fully described, it is to be understood that the described embodiments are merely exemplary of some, but not all, embodiments of the invention and that all other embodiments, which can be derived by one of ordinary skill in the art based on the described embodiments without inventive faculty, are within the scope of the invention.
Referring to fig. 1-3, an all-weather, one-way, visible, bulletproof and explosion-proof glass comprises an outermost electric heating glass substrate 1 and an innermost conductive glass 2, wherein explosion-proof films 9 are adhered to the outer layers of the electric heating glass substrate 1 and the conductive glass 2, the explosion-proof films 9 are multilayer polyester composite films formed by lamination, the thickness of the multilayer polyester composite films is more than 250 micrometers, the phenomenon that the glass is broken when being impacted by a high-speed object or an explosive is prevented from splashing and damaging the property or the life individual on the inner side is avoided, the threat degree of life is reduced, conductive grids 11 are printed on the inner surface of the electric heating glass substrate 1, the conductive grids 11 and the conductive glass 2 form a closed loop, and a resistance heating band is formed after high-temperature curing, and the glass has the effects of heating the electric heating glass substrate 1 to generate heat and have the defogging and defrosting effects, under the foggy weather or frost and snow weather, the electric heating glass substrate 1 is clearly seen, one surface, located on a conductive grid 11, of an electric heating glass substrate 1 is covered with a first KPG film 12, the electric heating glass substrate 1 is connected with one-way glass 3 through the first KPG film 12, the other surface of the one-way glass 3 is covered with a second KPG film 31, the one-way glass 3 is connected with a first clear glass 4 through the second KPG film 31, the one-way glass 3 adopts a clear glass magnetron sputtering one-way reflection film layer, the light transmittance of an observation surface film layer is 75-80%, the reflectivity of a reflection surface is more than or equal to 85%, the light transmittance of the reflection surface is 8-15%, the color can be selected according to needs, the main function is to realize one-way visual effect and improve the confidentiality effect of the glass, a metal net 41 is fixed on the other surface of the first clear glass 4, one surface, located on the metal net 41, is covered with a PVB film 5, the other surface of the first clear, the second clear glass 6 is provided with a groove 61, the depth of the groove 61 is matched with the thickness of the metal net 41, the metal net 41 and the groove 61 are in the same shape, the metal net 41 is embedded into the groove 61, the PVB film 5 is filled in the groove 61 and covers the outside of the metal net 41, the PVB film 5 is used for fixing the metal net 41 and the groove together, the metal net 41 prevents the glass from splashing out under the action of external force applied to the glass, meanwhile, the bearing capacity of the surface of the glass is increased, a whole piece of glass is divided into a plurality of small pieces of glass, the explosion-proof effect is better, and the other surface of the second clear glass 6 is covered with a first TPU film 7; the conductive glass 2 is covered with a second TPU film 21, the conductive glass 2 is connected with a PC board 8 through the second TPU film 21, the high polymer material PC board 8 is small in density and high in viscosity, has excellent bullet or explosive impact resistance, is high in transparency, effectively reduces the whole weight of the bulletproof glass, improves the bulletproof performance of the glass, improves the transparency of the glass, is connected with a first TPU film 7, the thickness of an electric heating glass substrate 1 is 3-8 mm, the thickness of a unidirectional glass 3 is 5-8 mm, the thicknesses of a first KPG film 12 and a second KPG film 31 are 0.5-5.0 mm, the thickness of the PC board 8 is 3-6 mm, the thicknesses of the second TPU film 21 and the first TPU film 7 are 0.5-2 mm, the thickness of an explosion-proof film 9 is 0.2-1.7 mm, the resistance of a conductive grid 11 is 10-30 ohms, the first KPG film 12 and the second KPG film 31 resist the temperature of 50 ℃ plus 90 ℃ and have excellent high and low temperature resistance, the tensile strength is 6-12 times of that of a PVB film, the viscosity is high, the kinetic energy of high-speed object impact is absorbed, and the all-weather all-territory high-temperature and low-temperature application is realized.
An all-weather, one-way visual, bulletproof and explosion-proof glass and comprises the following steps;
the method comprises the following steps: pouring the prepared glass liquid into corresponding moulds to respectively prepare each layer of common plate glass, cleaning and drying the common plate glass by using purified water, heating the common plate glass in a heating furnace to a temperature close to the softening temperature of the glass, eliminating internal stress through self deformation, then removing the glass out of the heating furnace, blowing high-pressure cold air to two sides of the glass by using a multi-head nozzle, and rapidly and uniformly cooling the glass to room temperature to prepare tempered glass;
step two: feeding toughened glass into a hot press chamber, preheating, prepressing a transparent conductive film layer on the side surface of the toughened glass by magnetron sputtering, and feeding the toughened glass into a vacuum coating chamber to respectively prepare an electric heating glass substrate 1 and conductive glass 2, preheating the toughened glass, and covering one surface of the toughened glass with unidirectional glass 3 made of a unidirectional coating;
step three: after a groove 61 is formed in the second clear glass 6, the metal net 41 is placed in the groove 61, the PVB film 5 is filled in a gap between the groove 61 and the metal net 41 and is sent into a laminating chamber, the PVB film 5 is laminated between two adjacent pieces of glass and then is sent into a hot press chamber, and laminated glass is formed through preheating, prepressing and laminating;
step four: sequentially coating and superposing the KGP films and the TPU films on a plurality of glass layers through a dust-free workshop, and preheating and rolling the glass layers and the PC plates 8, the KGP films and the TPU films at 80-120 ℃ in a preheating press to preliminarily bond the glass layers and the PC plates 8, the KGP films and the TPU films and remove large bubbles;
step five: and (3) placing the preliminarily bonded glass layer on a silica gel vacuum bag, moving the silica gel vacuum bag into a closed high-pressure kettle, closing a door of the cabin, heating the cabin to 130-140 ℃, increasing the air pressure to 1.2Mpa, preserving the heat for 3 hours, removing all bubbles, enabling the glass sheet and the PC board to be tightly attached to each other, and preparing a finished product, wherein the two surfaces of the finished product are attached with explosion-proof membranes 9, and the explosion-proof membranes 9 are prepared by mixing a polycarbonate layer and a polymethyl methacrylate layer.
In conclusion, the all-weather, one-way visible, bulletproof and explosion-proof glass and the preparation method thereof, the electric heating glass substrate 1, the conductive grid 11 and the conductive glass 2 form a closed loop, and form a resistance heating band after high temperature curing, so as to play a role of heating the electric heating glass substrate 1 to generate heat and play a role of defogging and defrosting, the one-way glass 3 can be clearly seen in foggy days and frost and snow days, the one-way glass 3 adopts a glass cleaning magnetron sputtering one-way reflection film layer to realize one-way visible, the confidentiality effect of the glass is improved, the PVB film 5 is filled in the groove 61 and covers the outside of the metal net 41, the two are fixed together by the PVB film 5, the metal net 41 prevents the glass from splashing under the action of external force, simultaneously, the bearing capacity of the glass surface is increased, and a whole piece of glass is divided into a plurality of small glass, the explosion-proof effect is better, and the high-speed anti-explosion agent has the advantages of large viscosity, capability of absorbing the kinetic energy of the impact of a high-speed object and all-weather full-territory high and low temperature application.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. An all-weather, one-way visual, bulletproof and explosion-proof glass comprises an outermost electric heating glass substrate (1) and an innermost electric conduction glass (2), and is characterized in that: the inner surface of the electric heating glass substrate (1) is printed with a conductive grid (11), one surface of the electric heating glass substrate (1) positioned on the conductive grid (11) is covered with a first KPG film (12), the electric heating glass substrate (1) is connected with the one-way glass (3) through the first KPG film (12), the other surface of the one-way glass (3) is covered with a second KPG film (31), the one-way glass (3) is connected with the first clear glass (4) through the second KPG film (31), the other surface of the first clear glass (4) is fixed with a metal mesh (41), one surface, located on the metal mesh (41), of the first clear glass (4) is covered with a PVB film (5), the other surface of the first clear glass (4) is connected with second clear glass (6) through the PVB film (5), a groove (61) is formed in the second clear glass (6), and the other surface of the second clear glass (6) is covered with a first TPU film (7); the conductive glass (2) is covered with a second TPU film (21), the conductive glass (2) is connected with a PC board (8) through the second TPU film (21), and the PC board (8) is connected with the first TPU film (7).
2. The all-weather, one-way, visual, ballistic and blast resistant glass of claim 1, wherein: the depth of the groove (61) is matched with the thickness of the metal net (41), the metal net (41) is placed in the groove (61), and the PVB film (5) is filled in the groove (61) and covers the outer portion of the metal net (41).
3. The all-weather, one-way, visual, ballistic and blast resistant glass of claim 1, wherein: explosion-proof membranes (9) are adhered to the outer layers of the electric heating glass substrate (1) and the conductive glass (2), and the explosion-proof membranes (9) are multilayer polyester composite membranes formed by lamination, and the thickness of the explosion-proof membranes is more than 250 micrometers.
4. The all-weather, one-way, visual, ballistic and blast resistant glass of claim 1, wherein: the electric heating glass substrate (1), the conductive grid (11) and the conductive glass (2) form a closed loop, and a resistance heating belt is formed after high-temperature curing.
5. A method of making the all-weather, one-way, visable, bullet and blast resistant glass of any of claims 1-4, comprising the steps of;
s1: pouring the prepared glass liquid into corresponding moulds to respectively prepare each layer of common plate glass, cleaning and drying the common plate glass by using purified water, heating the common plate glass in a heating furnace to a temperature close to the softening temperature of the glass, eliminating internal stress through self deformation, then removing the glass out of the heating furnace, blowing high-pressure cold air to two sides of the glass by using a multi-head nozzle, and rapidly and uniformly cooling the glass to room temperature to prepare tempered glass;
s2: feeding toughened glass into a hot press chamber, preheating, prepressing a transparent conductive film layer on the side surface of the toughened glass by magnetron sputtering, and feeding the toughened glass into a vacuum coating chamber to respectively manufacture an electric heating glass substrate (1) and conductive glass (2), preheating the toughened glass, and covering one surface of the toughened glass with unidirectional glass (3) made of a unidirectional coating;
s3: after a groove (61) is formed in the second clear glass (6), a metal net (41) is placed in the groove (61), a PVB film (5) is filled in a gap between the groove (61) and the metal net (41) and is sent into a laminating chamber, the PVB film (5) is laminated between two adjacent pieces of glass and then is sent into a hot press chamber, and the laminated glass is formed through preheating, prepressing and laminating;
s4: sequentially coating and superposing the KGP films and the TPU films on a plurality of glass layers through a dust-free workshop, and preheating and rolling the glass layers and the PC plates (8), the KGP films and the TPU films at 80-120 ℃ in a preheating press to preliminarily bond the glass layers and the PC plates (8), the KGP films and the TPU films and remove large bubbles;
s5: and (3) putting the preliminarily bonded glass layer on a silica gel vacuum bag, moving the silica gel vacuum bag into a closed high-pressure kettle, closing a door of the cabin, heating the cabin to 130-140 ℃, increasing the air pressure to 1.2Mpa, preserving the heat for 3 hours, removing all bubbles, and enabling the glass sheet and the PC board to be tightly attached to prepare a finished product.
6. The method for preparing all-weather, one-way visible, bulletproof and explosion-proof glass according to claim 5, wherein the finished product S5 is pasted with explosion-proof membranes (9) on two sides, and the explosion-proof membranes (9) are made of a mixture of polycarbonate layers and polymethyl methacrylate layers.
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