CN114179491A - Production process of laminated glass - Google Patents
Production process of laminated glass Download PDFInfo
- Publication number
- CN114179491A CN114179491A CN202111430419.7A CN202111430419A CN114179491A CN 114179491 A CN114179491 A CN 114179491A CN 202111430419 A CN202111430419 A CN 202111430419A CN 114179491 A CN114179491 A CN 114179491A
- Authority
- CN
- China
- Prior art keywords
- glass
- film
- drying
- laminated glass
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005340 laminated glass Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 40
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 18
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 11
- CTJJGIVJOBVMEO-UHFFFAOYSA-N tetraoctyl benzene-1,2,4,5-tetracarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC(C(=O)OCCCCCCCC)=C(C(=O)OCCCCCCCC)C=C1C(=O)OCCCCCCCC CTJJGIVJOBVMEO-UHFFFAOYSA-N 0.000 claims description 11
- 238000007731 hot pressing Methods 0.000 claims description 10
- 238000010981 drying operation Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- 238000005406 washing Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- 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
-
- 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
- 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
- B32B37/1018—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 using only vacuum
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- 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
-
- 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
Abstract
The invention discloses a production process of laminated glass, which comprises the steps of selecting large glass raw materials, sequentially carrying out cutting, grinding and washing, cleaning to obtain glass raw sheets, then selecting films to be placed between two or more layers of the obtained glass raw sheets, cutting redundant films on the periphery to obtain glass combined sheets, vacuumizing, drying and preheating the obtained glass combined sheets to soften the films, and carrying out hot press forming by using an industrial glass laminating furnace to obtain the laminated glass.
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, etc., but the existing commercial laminated glass often has poor quality such as strength, etc., due in part to the poor adhesion strength of the intermediate film layer, poor quality, etc., which affects the service characteristics of the finished laminated glass.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a production process of laminated glass.
In order to solve the technical problems, the technical scheme provided by the invention is a production process of laminated glass, which comprises the following steps:
step 1) selecting a large glass raw material, and sequentially carrying out cutting, grinding and cleaning treatment to obtain a glass raw sheet for later use;
step 2) selecting a film, placing the film between two or more layers of the glass original sheets obtained in the step 1, and cutting redundant films around to obtain a glass composite sheet;
and 3) vacuumizing, drying and preheating the glass laminated sheet obtained in the step 2 to soften the film, and then performing hot press molding by using an industrial glass laminating furnace to obtain laminated glass.
Further, in the step 3, the vacuum pumping operation needs to be controlled at a vacuum degree of 2kpa for exhausting for 15-18 min.
Further, in the drying operation in the step 3, the temperature of the drying furnace needs to be controlled to be 80-90 ℃, and the drying is carried out for 20-30 min.
Further, the preheating operation in the step 3 needs to be carried out for 15-20min at the temperature of 55-68 ℃.
Further, in the hot pressing operation in the step 3, the pressure needs to be controlled to be 1.2MPa, the temperature needs to be controlled to be 130 ℃, and hot pressing is carried out for 60 min.
Further, the film is a PVB film and comprises the following components in parts by weight: 50-65 parts of polyvinyl butyral, 0.3-0.8 part of vinyl triethoxysilane and 5-8 parts of tetraoctyl pyromellitate, taking the raw materials according to the parts by weight, adding the vinyl triethoxysilane and the tetraoctyl pyromellitate into the polyvinyl butyral, fully stirring, extruding by an extruder, and drying by a drying oven to obtain the film.
Compared with the prior art, the invention has the advantages that: the film is prepared by adding vinyl triethoxysilane into polyvinyl butyral as a silane coupling agent and adopting tetraoctyl pyromellitate as a plasticizer, and performing high-temperature and high-pressure treatment to obtain a PVB film with high bonding strength.
Detailed Description
The following will explain the production process of laminated glass according to the present invention in detail with reference to the examples.
Example 1
Selecting a large glass raw material, and sequentially cutting, grinding, washing and cleaning to obtain a glass raw sheet; selecting a film, placing the film between two or more layers of glass original sheets, and cutting redundant films on the periphery to obtain a glass laminated sheet; vacuumizing, drying and preheating the obtained glass laminate, wherein the vacuumizing operation needs to exhaust for 15min under the vacuum degree of 2kpa, the drying operation needs to control the temperature of a drying furnace to be 80 ℃ for drying for 30min, and the preheating operation needs to control the temperature to be 55 ℃ for preheating for 20min, so that a film is softened, then carrying out hot pressing by using an industrial glass laminating furnace, wherein the pressure needs to be controlled to be 1.2MPa, the temperature needs to be 130 ℃, and carrying out hot pressing for 60min to obtain laminated glass;
the film is a PVB film and comprises the following components in parts by weight: 50 parts of polyvinyl butyral, 0.3 part of vinyl triethoxysilane and 5 parts of tetraoctyl pyromellitate, taking the raw materials according to the parts by weight, adding the vinyl triethoxysilane and the tetraoctyl pyromellitate into the polyvinyl butyral, fully stirring, extruding by an extruder, and drying by a drying oven to obtain the film.
Example 2
Selecting a large glass raw material, and sequentially cutting, grinding, washing and cleaning to obtain a glass raw sheet; selecting a film, placing the film between two or more layers of glass original sheets, and cutting redundant films on the periphery to obtain a glass laminated sheet; vacuumizing, drying and preheating the obtained glass sheet, wherein the vacuumizing operation needs to exhaust for 16min under the vacuum degree of 2kpa, the drying operation needs to control the temperature of a drying furnace to be 85 ℃ for drying for 25min, the preheating operation needs to control the temperature to be 61 ℃ for preheating for 18min, so that a film is softened, then, hot pressing is carried out by using an industrial glass laminating furnace, the pressure needs to be controlled to be 1.2MPa, the temperature needs to be 130 ℃, and hot pressing is carried out for 60min, so that laminated glass is obtained;
the film is a PVB film and comprises the following components in parts by weight: 60 parts of polyvinyl butyral, 0.5 part of vinyl triethoxysilane and 6 parts of tetraoctyl pyromellitate, taking the raw materials according to the parts by weight, adding the vinyl triethoxysilane and the tetraoctyl pyromellitate into the polyvinyl butyral, fully stirring, extruding by an extruder, and drying by a drying oven to obtain the film.
Example 3
Selecting a large glass raw material, and sequentially cutting, grinding, washing and cleaning to obtain a glass raw sheet; selecting a film, placing the film between two or more layers of glass original sheets, and cutting redundant films on the periphery to obtain a glass laminated sheet; vacuumizing, drying and preheating the obtained glass sheet, wherein the vacuumizing operation needs to exhaust for 18min under the vacuum degree of 2kpa, the drying operation needs to control the temperature of a drying furnace to be 90 ℃ for drying for 20min, and the preheating operation needs to control the temperature to be 68 ℃ for preheating for 15min, so that a film is softened, then carrying out hot pressing by using an industrial glass laminating furnace, wherein the pressure needs to be controlled to be 1.2MPa, the temperature needs to be 130 ℃, and carrying out hot pressing for 60min to obtain laminated glass;
the film is a PVB film and comprises the following components in parts by weight: 65 parts of polyvinyl butyral, 0.8 part of vinyl triethoxysilane and 8 parts of tetraoctyl pyromellitate, taking the raw materials according to the parts by weight, adding the vinyl triethoxysilane and the tetraoctyl pyromellitate into the polyvinyl butyral, fully stirring, extruding by an extruder, and drying by a drying oven to obtain the film.
Example 4 comparative experiment
Selecting the laminated glass prepared in the embodiments 1, 2 and 3 as a test group 1, a test group 2 and a test group 3;
randomly purchasing two types of commercially available laminated glass, and respectively marking as a comparison group 1 and a comparison group 2;
the three materials are subjected to performance test of bonding strength, and the test results are shown in the following table:
note: the adhesive strength refers to the adhesive strength of the films in two or more glass base sheets.
As can be seen from the table above, the laminated glass prepared by the production process provided by the invention has high bonding strength, so that the bonding performance of the laminated glass is obviously improved.
The invention and its embodiments have been described above, without this being limitative. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The production process of laminated glass is characterized by comprising the following steps of:
step 1) selecting a large glass raw material, and sequentially carrying out cutting, grinding and cleaning treatment to obtain a glass raw sheet for later use;
step 2) selecting a film, placing the film between two or more layers of the glass original sheets obtained in the step 1, and cutting redundant films around to obtain a glass composite sheet;
and 3) vacuumizing, drying and preheating the glass laminated sheet obtained in the step 2 to soften the film, and then performing hot press molding by using an industrial glass laminating furnace to obtain laminated glass.
2. The laminated glass production process according to claim 1, wherein the step 3 of evacuating is performed by controlling evacuation at a vacuum of 2kpa for 15-18 min.
3. The process for producing laminated glass according to claim 1, wherein: in the drying operation in the step 3, the temperature of the drying furnace needs to be controlled to be 80-90 ℃, and the drying is carried out for 20-30 min.
4. The process for producing laminated glass according to claim 1, wherein: the preheating operation in the step 3 needs to be carried out for 15-20min at the temperature of 55-68 ℃.
5. The process for producing laminated glass according to claim 1, wherein: in the hot pressing operation in the step 3, the pressure is controlled to be 1.2MPa, the temperature is controlled to be 130 ℃, and hot pressing is carried out for 60 min.
6. The process for producing laminated glass according to claim 1, wherein: the film is a PVB film and comprises the following components in parts by weight: 50-65 parts of polyvinyl butyral, 0.3-0.8 part of vinyl triethoxysilane and 5-8 parts of tetraoctyl pyromellitate, taking the raw materials according to the parts by weight, adding the vinyl triethoxysilane and the tetraoctyl pyromellitate into the polyvinyl butyral, fully stirring, extruding by an extruder, and drying by a drying oven to obtain the film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430419.7A CN114179491A (en) | 2021-11-29 | 2021-11-29 | Production process of laminated glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430419.7A CN114179491A (en) | 2021-11-29 | 2021-11-29 | Production process of laminated glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114179491A true CN114179491A (en) | 2022-03-15 |
Family
ID=80541642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111430419.7A Pending CN114179491A (en) | 2021-11-29 | 2021-11-29 | Production process of laminated glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114179491A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608046A (en) * | 2008-06-20 | 2009-12-23 | 鹤壁市飞鹤塑胶有限公司 | PVB film for laminated glass |
| CN108312670A (en) * | 2018-01-30 | 2018-07-24 | 四川雄港玻璃有限公司 | A kind of production technology of doubling glass |
| CN112497886A (en) * | 2020-12-21 | 2021-03-16 | 福建东晶玻璃有限公司 | Production process of laminated glass |
-
2021
- 2021-11-29 CN CN202111430419.7A patent/CN114179491A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608046A (en) * | 2008-06-20 | 2009-12-23 | 鹤壁市飞鹤塑胶有限公司 | PVB film for laminated glass |
| CN108312670A (en) * | 2018-01-30 | 2018-07-24 | 四川雄港玻璃有限公司 | A kind of production technology of doubling glass |
| CN112497886A (en) * | 2020-12-21 | 2021-03-16 | 福建东晶玻璃有限公司 | Production process of laminated glass |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220315 |
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| RJ01 | Rejection of invention patent application after publication |