CN112497886A - Production process of laminated glass - Google Patents
Production process of laminated glass Download PDFInfo
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- CN112497886A CN112497886A CN202011516358.1A CN202011516358A CN112497886A CN 112497886 A CN112497886 A CN 112497886A CN 202011516358 A CN202011516358 A CN 202011516358A CN 112497886 A CN112497886 A CN 112497886A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—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
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
- C09J129/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
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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
- C09J7/10—Adhesives in the form of films or foils without carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- Fluid Mechanics (AREA)
- Inorganic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention discloses a production process of laminated glass, which relates to the technical field of glass processing and comprises the following steps: (1) glass cutting treatment, (2) glass sheet preparation, and (3) hot pressing treatment. The process of the invention has simple integral steps, is beneficial to popularization and application, and the prepared laminated glass has high strength, good heat preservation and sound insulation performance, strong comprehensive performance and long service life.
Description
Technical Field
The invention relates to the technical field of glass processing, in particular to a production process of laminated glass.
Background
The laminated glass is a composite glass product which is formed by sandwiching one or more layers of organic polymer intermediate films between two or more pieces of glass and bonding the glass and the intermediate films into a whole after treatment. Commonly used interlayer films for laminated glass include: PVB, SGP, EVA, PU, and the like.
However, the existing commercially available laminated glass often has poor quality such as strength, and the use characteristics of the finished laminated glass are affected due to the poor quality and low bonding strength of the intermediate film layer, and the like, so that the demand for optimization and improvement is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production process of laminated glass, which has the advantage of improving the use characteristics of the laminated glass.
In order to achieve the purpose, the invention provides the following technical scheme:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
Further, the drying temperature in the step (1) is controlled to be 80-85 ℃.
Further, the preparation method of the modified membrane in the step (2) comprises the following steps:
1) placing attapulgite in a calcining furnace for high-temperature calcination treatment, taking out after the calcination treatment, placing the calcined attapulgite in a cryogenic pulverizer, performing pulverization treatment in a liquid nitrogen environment, and taking out after the pulverization treatment to obtain attapulgite powder for later use;
2) weighing the following components in parts by weight: 8-12 parts of attapulgite powder prepared in the step (1), 45-50 parts of polyethylene, 3-6 parts of seaweed gel, 0.2-0.4 part of nonylphenol polyoxyethylene ether, 1-2 parts of glycerin fatty acid ester, 0.3-0.5 part of disodium ethylene diamine tetraacetate, 2-4 parts of nano titanium nitride and 95-100 parts of deionized water, mixing and homogenizing all the components together, and taking out the mixture to obtain a homogeneous material for later use;
3) carrying out laser shock treatment on the homogeneous material obtained in the step 2), and taking out the homogeneous material after the laser shock treatment to obtain a modified additive for later use;
4) weighing the following raw materials in parts by weight: 80-85 parts of PVB resin, 5-10 parts of polymethyl methacrylate, 1-3 parts of plasticizer, 3-6 parts of rubber and 4-7 parts of modified additive prepared in the step 3);
5) blending all the raw materials weighed in the step 4), then injecting the mixture into a double-screw extruder, and finally performing extrusion, molding and cooling treatment.
Further, the temperature is controlled to be 960-1000 ℃ during the calcination treatment in the step 1), and the calcination treatment time is 1-2 h.
Further, the rotating speed of the pulverizer is controlled to be 1000-1400 rpm during the pulverizing treatment in the step 1), and the pulverizing treatment time is 45-50 min.
Further, the working pressure of the homogenizer is controlled to be 110-115 MPa during the common mixing and homogenizing treatment in the step 2), and the time of the homogenizing treatment is 10-15 min.
Further, the wavelength of the laser is controlled to be 2-3 μm during the laser shock treatment in the step 3), the pulse width is 65-75 ns, and the laser shock power density is 0.75-0.80 GW/cm2The treatment time is 280-300 s.
Further, the preheating temperature in the preheating treatment in the step (3) is controlled to be 70-80 ℃, and the preheating time is 10-15 min.
Further, the pre-pressing treatment in the step (3) is carried out under the control pressure of 1.5-1.7 MPa for 10-15 min.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) the invention optimizes the production process of the laminated glass, improves the problem of poor service performance such as strength of the existing product and the like, and provides a new product with excellent comprehensive performance for the market;
(2) the invention uses a special modified diaphragm, which is different from the common diaphragm on the market, the diaphragm is specially modified, PVB resin is used as main material, a modified additive is added in the preparation process, the modified additive is obtained by deep processing and modification with attapulgite, the attapulgite has good adsorption capacity and larger specific surface area, the adsorption performance is further improved by high-temperature calcination and pulverization, then the modified additive is mixed with alginate jelly, nonylphenol polyoxyethylene ether and nano titanium nitride, after homogenization treatment, the components are dispersed and fixed on the attapulgite, and then laser shock treatment is carried out, the attapulgite absorbs laser shock wave to strengthen pulse energy and vaporize and ionize to form high-temperature plasma and spray outward rapidly, but due to the protective constraint action of the film layer formed on the surface of the alginate jelly, the expansion of the plasma is restricted, so that the internal pressure of the plasma is rapidly increased, high impact load is generated inside and on the surface of the attapulgite, strong impact waves are generated in a very short time and are propagated to the interior of the layers of the attapulgite, the specific surface area of the attapulgite is obviously enhanced, the nano titanium nitride is fully and uniformly filled in the interior of the layers of the attapulgite, the structural characteristics of the attapulgite are improved, and the nano titanium nitride is finally added into the membrane, so that the strength characteristic of the membrane is obviously improved, and the characteristics of the membrane, such as heat preservation, sound insulation, corrosion resistance and the like, are enhanced;
(3) after the modified membrane and the glass are subjected to laminating processing, the comprehensive use characteristic of the glass is effectively improved;
(4) the process of the invention has simple integral steps, is beneficial to popularization and application, and the prepared laminated glass has high strength, good heat preservation and sound insulation performance, strong comprehensive performance, long service life, and great market competitiveness and popularization and application value.
Detailed Description
The present invention will be described in detail with reference to the following examples.
Example 1:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
The temperature for drying in step (1) was controlled to 80 ℃.
The preparation method of the modified membrane in the step (2) comprises the following steps:
1) placing attapulgite in a calcining furnace for high-temperature calcination treatment, taking out after the calcination treatment, placing the calcined attapulgite in a cryogenic pulverizer, performing pulverization treatment in a liquid nitrogen environment, and taking out after the pulverization treatment to obtain attapulgite powder for later use;
2) weighing the following components in parts by weight: 8 parts of attapulgite powder prepared in the step (1), 45 parts of polyethylene, 3 parts of seaweed gel, 0.2 part of nonylphenol polyoxyethylene ether, 1 part of glycerin fatty acid ester, 0.3 part of disodium ethylene diamine tetraacetate, 2 parts of nano titanium nitride and 95 parts of deionized water, mixing and homogenizing all the components together, and taking out the mixture to obtain a homogeneous material for later use;
3) carrying out laser shock treatment on the homogeneous material obtained in the step 2), and taking out the homogeneous material after the laser shock treatment to obtain a modified additive for later use;
4) weighing the following raw materials in parts by weight: 80 parts of PVB resin, 5 parts of polymethyl methacrylate, 1 part of plasticizer, 3 parts of rubber and 4 parts of modified additive prepared in the step 3);
5) blending all the raw materials weighed in the step 4), then injecting the mixture into a double-screw extruder, and finally performing extrusion, molding and cooling treatment.
The temperature is controlled to be 960 ℃ during the calcination treatment in the step 1), and the calcination treatment time is 1 h; the rotation speed of the pulverizer was controlled at 1000rpm during the pulverization treatment, and the pulverization treatment time was 45 min.
And 2) controlling the working pressure of the homogenizer to be 110MPa during the common mixing and homogenizing treatment in the step 2), and controlling the time of the homogenizing treatment to be 10 min.
Controlling the wavelength of the laser to be 2 mu m, the pulse width to be 65ns and the laser impact power density to be 0.75GW/cm during the laser impact treatment in the step 3)2The treatment time is 280 s; during preheating treatment, the preheating temperature is controlled to be 70 ℃, and the preheating time is 10 min.
And (4) controlling the pressure to be 1.5MPa and the pre-pressing time to be 10min during the pre-pressing treatment in the step (3).
Example 2:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
The temperature for drying in step (1) was controlled to 83 ℃.
The preparation method of the modified membrane in the step (2) comprises the following steps:
1) placing attapulgite in a calcining furnace for high-temperature calcination treatment, taking out after the calcination treatment, placing the calcined attapulgite in a cryogenic pulverizer, performing pulverization treatment in a liquid nitrogen environment, and taking out after the pulverization treatment to obtain attapulgite powder for later use;
2) weighing the following components in parts by weight: 10 parts of attapulgite powder prepared in the step (1), 48 parts of polyethylene, 5 parts of seaweed gel, 0.3 part of nonylphenol polyoxyethylene ether, 1.5 parts of glycerin fatty acid ester, 0.4 part of disodium ethylene diamine tetraacetate, 3 parts of nano titanium nitride and 98 parts of deionized water, mixing and homogenizing all the components together, and taking out the mixture to obtain a homogeneous material for later use;
3) carrying out laser shock treatment on the homogeneous material obtained in the step 2), and taking out the homogeneous material after the laser shock treatment to obtain a modified additive for later use;
4) weighing the following raw materials in parts by weight: 83 parts of PVB resin, 8 parts of polymethyl methacrylate, 2 parts of plasticizer, 5 parts of rubber and 6 parts of modified additive prepared in the step 3);
5) blending all the raw materials weighed in the step 4), then injecting the mixture into a double-screw extruder, and finally performing extrusion, molding and cooling treatment.
During the calcination treatment in the step 1), the temperature is controlled to be 980 ℃, and the calcination treatment time is 1.6 h; the rotation speed of the pulverizer was controlled at 1200rpm during the pulverization treatment, and the pulverization treatment time was 48 min.
Controlling the working pressure of the homogenizer to be 113MPa during the common mixing and homogenizing treatment in the step 2), and controlling the time of the homogenizing treatment to be 12 min.
Controlling the wavelength of the laser to be 2.5 mu m, the pulse width to be 70ns and the laser impact power density to be 0.77GW/cm during the laser impact treatment in the step 3)2The treatment time was 290 s; the preheating temperature is controlled to 750 ℃ during preheating treatment, and the preheating time is controlled to 13 min.
And (4) controlling the pressure to be 1.6MPa and the pre-pressing time to be 12min during the pre-pressing treatment in the step (3).
Example 3:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
The temperature for drying in step (1) was controlled to 85 ℃.
The preparation method of the modified membrane in the step (2) comprises the following steps:
1) placing attapulgite in a calcining furnace for high-temperature calcination treatment, taking out after the calcination treatment, placing the calcined attapulgite in a cryogenic pulverizer, performing pulverization treatment in a liquid nitrogen environment, and taking out after the pulverization treatment to obtain attapulgite powder for later use;
2) weighing the following components in parts by weight: 12 parts of attapulgite powder prepared in the step (1), 50 parts of polyethylene, 6 parts of seaweed gel, 0.4 part of nonylphenol polyoxyethylene ether, 2 parts of glycerin fatty acid ester, 0.5 part of disodium ethylene diamine tetraacetate, 4 parts of nano titanium nitride and 100 parts of deionized water, mixing and homogenizing all the components together, and taking out the mixture to obtain a homogeneous material for later use;
3) carrying out laser shock treatment on the homogeneous material obtained in the step 2), and taking out the homogeneous material after the laser shock treatment to obtain a modified additive for later use;
4) weighing the following raw materials in parts by weight: 85 parts of PVB resin, 10 parts of polymethyl methacrylate, 3 parts of plasticizer, 6 parts of rubber and 7 parts of modified additive prepared in the step 3);
5) blending all the raw materials weighed in the step 4), then injecting the mixture into a double-screw extruder, and finally performing extrusion, molding and cooling treatment.
The temperature is controlled to be 1000 ℃ during the calcination treatment in the step 1), and the calcination treatment time is 2 h; the rotation speed of the pulverizer is controlled to 1400rpm during pulverizing treatment, and the pulverizing treatment time is 50 min.
And (3) controlling the working pressure of the homogenizer to be 115MPa during the common mixing and homogenizing treatment in the step 2), and controlling the time of the homogenizing treatment to be 15 min.
Controlling the wavelength of the laser to be 3 mu m, the pulse width to be 75ns and the laser impact power density to be 0.80GW/cm during the laser impact treatment in the step 3)2The processing time is 300 s; the preheating temperature is controlled to be 80 ℃ during preheating treatment, and the preheating time is 15 min.
And (4) controlling the pressure to be 1.7MPa and the pre-pressing time to be 15min during the pre-pressing treatment in the step (3).
Comparative example 1:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
This comparative example 1 is different from example 3 only in that the treatment operation of step 2) is omitted in the preparation of the modified membrane sheet, except that the process steps are the same.
Comparative example 2:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
This comparative example 2 is different from example 3 only in that the treatment operation of step 3) is omitted in the preparation of the modified membrane sheet, except that the process steps are the same.
Comparative example 3:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
This comparative example 3 is different from example 3 only in that, in the preparation of the modified membrane sheet, an equal mass part of attapulgite was used instead of the modifying additive, except that the other steps of the method were the same.
Comparative example 4:
the production process of laminated glass comprises the following steps:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
This comparative example 4 differs from example 3 only in that the use of a modification additive in step 4) is omitted in the preparation of the modified membrane sheet, except that the process steps are otherwise identical.
In order to compare the effects of the present invention, the laminated glasses prepared in the above examples 3 and 1 to 4 were subjected to performance tests, and the specific comparative data are shown in the following table 1:
TABLE 1
| Adhesive Strength (MPa) | Melting time (h) | |
| Example 3 | 33.6 | 2.9 |
| Comparative example 1 | 27.8 | 2.0 |
| Comparative example 2 | 27.0 | 1.9 |
| Comparative example 3 | 25.8 | 1.6 |
| Comparative example 4 | 22.3 | 1.4 |
Note: the bonding strength described in table 1 above is the bonding strength of the membrane between two glass sheets tested; the melting time is the heat insulation performance of the tested laminated glass, and the specific operation is to take five same foam boxes, put ice blocks (0.1m by 0.1m) with the same volume into each foam box, cover the laminated glass correspondingly prepared in the above embodiment 3 and the comparative examples 1 to 4 respectively, and then place the laminated glass under the sunlight together to irradiate, and measure the time for the ice blocks to be completely melted.
As can be seen from the above table 1, the laminated glass prepared by the production method of the invention has stable bonding performance, better strength characteristic, excellent heat insulation and preservation capability, obviously improved comprehensive quality and great market competitiveness.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The production process of laminated glass is characterized by comprising the following steps of:
(1) and (3) glass cutting treatment:
cutting the large glass raw material, then grinding, washing and drying to obtain a glass raw sheet for later use;
(2) preparing a glass sheet:
a specially-made modified membrane is clamped in the two or more layers of original glass sheets obtained in the step (1), and then the redundant modified membrane at the periphery is cut off to obtain a glass sheet for later use;
(3) hot pressing treatment:
and (3) preheating and prepressing the glass laminated sheet obtained in the step (2), and transferring the glass laminated sheet into a hot press machine for hot press molding after the modified membrane is softened to obtain the finished product of laminated glass.
2. The process for producing laminated glass according to claim 1, wherein the drying temperature in the step (1) is controlled to 80 to 85 ℃.
3. The process for producing laminated glass according to claim 1, wherein the method for preparing the modified film in step (2) comprises the following steps:
1) placing attapulgite in a calcining furnace for high-temperature calcination treatment, taking out after the calcination treatment, placing the calcined attapulgite in a cryogenic pulverizer, performing pulverization treatment in a liquid nitrogen environment, and taking out after the pulverization treatment to obtain attapulgite powder for later use;
2) weighing the following components in parts by weight: 8-12 parts of attapulgite powder prepared in the step (1), 45-50 parts of polyethylene, 3-6 parts of seaweed gel, 0.2-0.4 part of nonylphenol polyoxyethylene ether, 1-2 parts of glycerin fatty acid ester, 0.3-0.5 part of disodium ethylene diamine tetraacetate, 2-4 parts of nano titanium nitride and 95-100 parts of deionized water, mixing and homogenizing all the components together, and taking out the mixture to obtain a homogeneous material for later use;
3) carrying out laser shock treatment on the homogeneous material obtained in the step 2), and taking out the homogeneous material after the laser shock treatment to obtain a modified additive for later use;
4) weighing the following raw materials in parts by weight: 80-85 parts of PVB resin, 5-10 parts of polymethyl methacrylate, 1-3 parts of plasticizer, 3-6 parts of rubber and 4-7 parts of modified additive prepared in the step 3);
5) blending all the raw materials weighed in the step 4), then injecting the mixture into a double-screw extruder, and finally performing extrusion, molding and cooling treatment.
4. The production process of laminated glass according to claim 3, wherein the temperature of the calcination treatment in step 1) is controlled to be 960-1000 ℃, and the calcination treatment time is 1-2 h.
5. The production process of laminated glass according to claim 3, wherein the rotation speed of the crusher is controlled to be 1000-1400 rpm during crushing treatment in the step 1), and the crushing treatment time is 45-50 min.
6. The production process of laminated glass according to claim 3, wherein the working pressure of the homogenizer in the step 2) is controlled to be 110-115 MPa during the co-mixing and homogenizing treatment, and the time of the homogenizing treatment is 10-15 min.
7. The laminated glass production process according to claim 3, wherein the laser is controlled to have a wavelength of 2 to 3 μm, a pulse width of 65 to 75ns, and a laser impact power density of 0.75 to 0.80GW/cm during the laser impact treatment in step 3)2The treatment time is 280-300 s.
8. The process for producing laminated glass according to claim 1, wherein the preheating treatment in the step (3) is carried out at a temperature of 70 to 80 ℃ for a time of 10 to 15 min.
9. The production process of laminated glass according to claim 1, wherein the pre-pressing treatment in the step (3) is performed under a control pressure of 1.5-1.7 MPa for a period of 10-15 min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114179491A (en) * | 2021-11-29 | 2022-03-15 | 怀化市吉驷玻璃有限公司 | Production process of laminated glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114179491A (en) * | 2021-11-29 | 2022-03-15 | 怀化市吉驷玻璃有限公司 | Production process of laminated glass |
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