CN110834027A - Method for recycling laminated glass - Google Patents
Method for recycling laminated glass Download PDFInfo
- Publication number
- CN110834027A CN110834027A CN201910279194.6A CN201910279194A CN110834027A CN 110834027 A CN110834027 A CN 110834027A CN 201910279194 A CN201910279194 A CN 201910279194A CN 110834027 A CN110834027 A CN 110834027A
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- Prior art keywords
- laminated glass
- glass
- glass substrate
- intermediate layer
- recycling
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- 239000005340 laminated glass Substances 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004064 recycling Methods 0.000 title claims abstract description 37
- 239000011521 glass Substances 0.000 claims abstract description 97
- 239000000758 substrate Substances 0.000 claims abstract description 95
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 241000252254 Catostomidae Species 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 44
- 239000011229 interlayer Substances 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 206010040844 Skin exfoliation Diseases 0.000 description 14
- 230000008569 process Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
- B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention belongs to the technical field of glass manufacturing, and particularly relates to a method for recycling laminated glass, which comprises the following steps: s10: providing laminated glass, heating the laminated glass, and melting an intermediate layer of the laminated glass; s20: peeling off the glass substrate of the laminated glass and separating the glass substrate from the intermediate layer; s30: the glass substrate after the peeling is reused. The interlayer of the method is melted under the heating action, so that the adhesive force between the interlayer and the glass substrate is reduced, the glass substrate can be completely stripped from the interlayer, the stripped glass substrate can meet the requirements of secondary manufacturing and use, the glass substrate of the scrapped laminated glass can be used for manufacturing again after the method is carried out on the laminated glass, the manufacturing cost of the laminated glass is reduced, the waste of materials is also reduced, and the aim of recycling is fulfilled.
Description
Technical Field
The invention belongs to the technical field of glass manufacturing, and particularly relates to a method for recycling laminated glass.
Background
The laminated glass generally comprises two glass substrates and an intermediate layer, wherein the intermediate layer is fixed between the two glass substrates in a pressing way (the specific structure is shown in figure 1); however, in the process of manufacturing laminated glass, the laminated glass is easily scrapped due to the defects of dirt, impurities, bubbles and the like in the laminated glass, and the scrapped laminated glass is generally scrapped directly and cannot be recycled, so that the manufacturing cost of the laminated glass is high and the material resources are wasted.
Disclosure of Invention
The invention aims to provide a method for recycling laminated glass, and aims to solve the technical problems of high manufacturing cost and waste of material resources caused by the fact that the laminated glass in the prior art cannot be recycled.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for recycling laminated glass comprises the following steps:
s10: providing laminated glass, heating the laminated glass, and melting an intermediate layer of the laminated glass;
s20: peeling off the glass substrate of the laminated glass and separating the glass substrate from the intermediate layer;
s30: the glass substrate after the peeling is reused.
Optionally, in the step S10, the laminated glass is put into a steam heating device, and the laminated glass is heated by the steam in the steam heating device.
Alternatively, in the step S10, the temperature in the steam heating apparatus is set to be in the range of 80 to 200 ℃.
Optionally, after the step S10, the method further includes the step S11:
and removing the laminated glass from the steam heating equipment, and placing the laminated glass on a stripping operation table.
Optionally, in the step S10, after the first and second strong suction cups are respectively sucked onto the glass substrates located at two sides of the laminated glass by using the first and second strong suction cups which are oppositely arranged, the first and second strong suction cups are relatively pulled apart, so as to separate the glass substrates from the interlayer.
Optionally, the first and second power chucks are both vacuum chucks.
Optionally, in the step S20, after the glass substrate on one side of the laminated glass is separated from the intermediate layer by the first and second strong suction cups and the intermediate layer is adhered to the glass substrate on the other side of the laminated glass, the method further includes a step S21:
and putting the glass substrate adhered with the intermediate layer into the steam heating equipment again, melting the intermediate layer, taking the glass substrate adhered with the intermediate layer out of the steam heating equipment, placing the glass substrate on a stripping operation table, and stripping the intermediate layer from the glass substrate.
Alternatively, in the step S21, the temperature in the steam heating apparatus is set to be in the range of 80 to 200 ℃.
Alternatively, in the step S20, the laminated glass is heated with steam to melt the intermediate layer while peeling the glass substrate of the laminated glass.
Optionally, the steam heats the laminated glass at a temperature of 90 ℃ to 100 ℃.
One or more technical schemes in the method for recycling the laminated glass provided by the invention have at least one of the following technical effects: the method comprises the steps of heating the laminated glass, melting an intermediate layer in the laminated glass, stripping a glass substrate of the laminated glass from the intermediate layer, and recycling the stripped glass substrate; in the process, the intermediate layer is melted under the heating action, so that the adhesive force between the intermediate layer and the glass substrate is reduced, the glass substrate can be completely stripped from the intermediate layer, the stripped glass substrate can meet the requirements of secondary manufacturing and use, and the glass substrate of the scrapped laminated glass can be used for manufacturing again after the method of the invention is carried out on the laminated glass, so that the manufacturing cost of the laminated glass is reduced, the waste of materials is also reduced, and the aim of recycling is fulfilled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a cross-sectional view of a laminated glass provided in an embodiment of the present invention.
Fig. 2 is a flowchart of a method for recycling laminated glass according to an embodiment of the present invention.
Fig. 3 is a flowchart of a method for recycling laminated glass according to another embodiment of the present invention.
Fig. 4 is a flowchart of a method for recycling laminated glass according to another embodiment of the present invention.
Fig. 5 is a flowchart of a method for recycling laminated glass according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-laminated glass 11-glass substrate 12-interlayer
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-5 are exemplary and intended to be used for explanation of the invention, and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, in an embodiment of the present invention, a method for recycling laminated glass is provided, which includes the following steps:
s10: providing a laminated glass 10, heating the laminated glass 10, and melting an intermediate layer 12 of the laminated glass 10;
s20: peeling the glass substrate 11 of the laminated glass 10 and separating the glass substrate 11 from the intermediate layer 12;
s30: the glass substrate 11 after the peeling is reused.
In this example, the laminated glass 10 is heated to melt the intermediate layer 12 in the laminated glass 10, the glass substrate 11 of the laminated glass 10 is peeled off from the intermediate layer 12, and the peeled glass substrate 11 is recycled; in the process, the intermediate layer 12 is melted under the heating action, so that the adhesive force between the intermediate layer 12 and the glass substrate 11 is reduced, the glass substrate 11 can be completely stripped from the intermediate layer 12, the stripped glass substrate 11 can meet the requirements of secondary manufacturing and use, and the glass substrate 11 of the scrapped laminated glass 10 can be used for manufacturing again after the method of the invention is carried out, so that the manufacturing cost of the laminated glass 10 is reduced, the waste of materials is also reduced, and the aim of recycling is fulfilled.
Further, the glass substrate 11 after the peeling is reused. The peeled glass substrate 11 is reused as a raw material for producing the laminated glass 10, thereby realizing recycling of the glass substrate 11.
Further, the interlayer 12 is a PVB film or an SGP film, both of which have high adhesive ability to the glass substrates 11, and can stably adhere the two glass substrates 11 together.
In another embodiment of the present invention, referring to fig. 2, there is provided a method for recycling laminated glass, in step S10, the laminated glass 10 is placed in a steam heating apparatus, and the laminated glass 10 is heated by steam in the steam heating apparatus. Specifically, the laminated glass 10 is heated by steam heating equipment, on one hand, the intermediate layer 12 in the laminated glass 10 can be melted at high temperature, so that the adhesive force between the glass substrate 11 and the intermediate layer 12 is reduced, and the glass substrate 11 and the intermediate layer 12 can be conveniently peeled off in the subsequent process; on the other hand, the water vapor in the steam enters between the glass substrate 11 and the interlayer 12, and the adhesion between the interlayer 12 and the glass substrate 11 is further reduced, which is more favorable for the subsequent peeling of the glass substrate 11 and the interlayer 12.
Preferably, the steam heating device is a constant-temperature steam heating device, and the laminated glass 10 is heated under constant and stable conditions, so that the damage of the laminated glass 10 due to the temperature change can be effectively avoided.
In another embodiment of the present invention, there is provided the method for recycling laminated glass, wherein the temperature in the steam heating apparatus is set to a range of 80 to 200 ℃ in step S10. Specifically, the heating temperature in the steam heating device may be 80 ℃, 85 ℃, 90 ℃, 95 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃, 120 ℃, 125 ℃, 130 ℃, 135 ℃, 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃, 195 ℃ or 120 ℃, and the temperature range is set so as to avoid that the intermediate layer 12 cannot be melted due to too low heating temperature and the glass substrate 11 is damaged due to too high heating temperature.
In another embodiment of the present invention, referring to fig. 2, the method for recycling laminated glass further includes, after step S10, step S11: the laminated glass 10 was removed from the steam heating apparatus and placed on a peeling station. Specifically, after the intermediate layer 12 is heated and melted, the laminated glass 10 is moved out of the steam heating device and placed on a peeling operation table, and the peeling operation table plays a role in supporting the laminated glass 10, so that the subsequent separation of the laminated glass 10 is facilitated.
In another embodiment of the present invention, referring to fig. 3, in step S10 of the method for recycling laminated glass, after the first and second strong suction cups are respectively sucked onto the glass substrates 11 on both sides of the laminated glass 10 by using the first and second strong suction cups which are oppositely disposed, the first and second strong suction cups are relatively pulled apart, so as to separate the glass substrates 11 from the interlayer 12. Specifically, the first powerful suction cup is adsorbed on the glass substrate 11 on one side of the laminated glass 10, the second powerful suction cup is adsorbed on the glass substrate 11 on the other side of the laminated glass 10, and the first powerful suction cup and the second powerful suction cup are relatively pulled apart, so that the middle layer 12 is separated from the glass substrate 11, and the separation of the two glass substrates 11 is realized; by adopting the structural form of the sucking disc, on one hand, the sucking disc can be stably adsorbed on the smooth surface of the glass substrate 11 and has large adsorption force, so that the glass substrate 11 can be stably adsorbed on the sucking disc without sliding in the stripping process of the laminated glass 10, the glass substrate 11 or the laminated glass 10 is prevented from being damaged due to sliding, the waste of materials is avoided, and the manufacturing cost of the laminated glass 10 is reduced; on the other hand, the sucker is soft and elastic, does not damage the glass substrate 11, and is beneficial to recycling the glass substrate 11.
In another embodiment of the present invention, the first and second power chucks of the method for recycling laminated glass are vacuum chucks. Specifically, the vacuum chuck has an advantage of large suction force, so that the glass substrate 11 and the interlayer 12 can be smoothly separated from each other, and safety in separating the glass substrate 11 from the interlayer 12 is ensured.
Further, the vacuum chuck is communicated with an external vacuum generator through a pipeline, and the vacuum generator is used for vacuumizing the vacuum chuck, so that vacuum adsorption between the vacuum chuck and the glass substrate 11 is realized.
In another embodiment of the present invention, referring to fig. 4, there is provided a method for recycling a laminated glass, in which after the glass substrate 11 on one side of the laminated glass 10 is separated from the interlayer 12 by the first and second strong suction pads and the interlayer 12 is adhered to the glass substrate 11 on the other side of the laminated glass 10 in step S20, the method further includes step S21: the glass substrate 11 to which the intermediate layer 12 is adhered is again placed in the steam heating apparatus, and after the intermediate layer 12 is melted, the glass substrate 11 to which the intermediate layer 12 is adhered is taken out of the steam heating apparatus, placed on a peeling stage, and the intermediate layer 12 is peeled from the glass substrate 11. Specifically, after the laminated glass 10 is peeled by the first and second strong suction cups, only the glass substrate 11 on one side is separated from the interlayer 12, the interlayer 12 adheres to the glass substrate 11 on the other side, the glass substrate 11 adhered with the interlayer 12 is placed in a steam heating device for heating, the interlayer 12 is melted again, the glass substrate 11 adhered with the interlayer 12 is removed from the steam heating device and placed on a peeling operation table again, and the interlayer 12 is directly peeled from the glass substrate 11 manually, so that the glass substrate 11 and the interlayer 12 are completely peeled. Thus, the glass substrates 11 on both sides of the laminated glass 10 are peeled from the intermediate layer 12, and the glass substrates 11 on both sides of the laminated glass 10 can be recycled, so that the manufacturing cost of the laminated glass 10 is further reduced, and the waste of materials is avoided.
In another embodiment of the present invention, there is provided the method for recycling laminated glass, wherein the temperature in the steam heating apparatus is set to a range of 80 to 200 ℃ in step S21. Specifically, the heating temperature in the steam heating apparatus may be 80 ℃, 85 ℃, 90 ℃, 95 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃, 120 ℃, 125 ℃, 130 ℃, 135 ℃, 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃, 195 ℃ or 120 ℃, and if the temperature is set too low, the intermediate layer 12 cannot be melted, and the adhesion between the glass substrate 11 and the intermediate layer 12 is large, the glass substrate 11 cannot be completely separated from the intermediate layer 12; if the temperature is set too high, the glass substrate 11 may be damaged.
In another embodiment of the present invention, referring to fig. 5, there is provided the method for recycling laminated glass, in step S20, heating the laminated glass 10 with steam to melt the interlayer 12 while peeling the glass substrate 11 of the laminated glass 10. Specifically, while the glass substrate 11 of the laminated glass 10 is peeled, the laminated glass 10 is heated by steam, so as to further melt the intermediate layer 12, further reduce the adhesion between the glass substrate 11 and the intermediate layer 12, and further facilitate the subsequent peeling of the glass substrate 11 and the intermediate layer 12.
In another embodiment of the present invention, the laminated glass 10 is heated at a temperature of 90 ℃ to 100 ℃ with steam from the method of recycling the laminated glass. Specifically, the temperature of the steam may be 90 ℃, 91 ℃, 92 ℃, 93 ℃, 94 ℃, 95 ℃, 96 ℃, 97 ℃, 98 ℃, 99 ℃ or 100 ℃, and if the temperature is set too low, the function of melting the intermediate layer 12 cannot be performed, and the adhesion between the glass substrate 11 and the intermediate layer 12 cannot be reduced; personnel operate on the stripping operation table, and the high temperature of the steam can cause injury to the personnel.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for recycling laminated glass is characterized in that: the method comprises the following steps:
s10: providing laminated glass, heating the laminated glass, and melting an intermediate layer of the laminated glass;
s20: peeling off the glass substrate of the laminated glass and separating the glass substrate from the intermediate layer;
s30: the glass substrate after the peeling is reused.
2. The method for recycling laminated glass according to claim 1, characterized in that: in step S10, the laminated glass is placed in a steam heating apparatus, and the laminated glass is heated by steam in the steam heating apparatus.
3. The method for recycling laminated glass according to claim 2, characterized in that: in the step S10, the temperature in the steam heating device is set to be in the range of 80 to 200 ℃.
4. The method for recycling laminated glass according to claim 2, characterized in that: after the step S10, a step S11 is further included:
and removing the laminated glass from the steam heating equipment, and placing the laminated glass on a stripping operation table.
5. The method for recycling laminated glass according to any one of claims 1 to 4, wherein: in step S10, the first and second strong suction cups are respectively sucked onto the glass substrates located on both sides of the laminated glass by using the first and second strong suction cups which are oppositely disposed, and then the first and second strong suction cups are relatively pulled apart, so that the glass substrates are separated from the intermediate layer.
6. The method for recycling laminated glass according to any one of claims 1 to 4, wherein: the first powerful sucker and the second powerful sucker are both vacuum suckers.
7. The method for recycling laminated glass according to claim 5, wherein: in the step S20, after the glass substrate on one side of the laminated glass is separated from the intermediate layer by the first and second strong suction cups and the intermediate layer is adhered to the glass substrate on the other side of the laminated glass, the method further includes a step S21:
and putting the glass substrate adhered with the intermediate layer into the steam heating equipment again, melting the intermediate layer, taking the glass substrate adhered with the intermediate layer out of the steam heating equipment, placing the glass substrate on a stripping operation table, and stripping the intermediate layer from the glass substrate.
8. The method for recycling laminated glass according to claim 7, wherein: in the step S21, the temperature in the steam heating device is set to be in the range of 80 to 200 ℃.
9. The method for recycling laminated glass according to any one of claims 1 to 4, characterized in that: in the step S20, the laminated glass is heated with steam to melt the intermediate layer while peeling the glass substrate of the laminated glass.
10. The method for recycling laminated glass according to claim 9, wherein: the steam heats the laminated glass at a temperature of 90-100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279194.6A CN110834027A (en) | 2019-04-09 | 2019-04-09 | Method for recycling laminated glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279194.6A CN110834027A (en) | 2019-04-09 | 2019-04-09 | Method for recycling laminated glass |
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| Publication Number | Publication Date |
|---|---|
| CN110834027A true CN110834027A (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910279194.6A Pending CN110834027A (en) | 2019-04-09 | 2019-04-09 | Method for recycling laminated glass |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247751A (en) * | 1993-02-24 | 1994-09-06 | Asahi Glass Co Ltd | Method for recovering glass from laminated glass |
| JP2002053324A (en) * | 2000-08-07 | 2002-02-19 | Masaki Ijichi | Method for separating glass from laminated glass |
| CN1774483A (en) * | 2003-04-14 | 2006-05-17 | 积水化学工业株式会社 | Method for releasing adhered article,and method for recovering electronic part from a laminate and laminated glass releasing method |
| CN106145685A (en) * | 2016-06-24 | 2016-11-23 | 湖南省小尹无忌环境能源科技开发有限公司 | A kind of resource utilization method of useless laminated glass |
| CN108883979A (en) * | 2016-02-05 | 2018-11-23 | 积水化学工业株式会社 | Intermediate film for laminated glasses and laminated glass |
-
2019
- 2019-04-09 CN CN201910279194.6A patent/CN110834027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247751A (en) * | 1993-02-24 | 1994-09-06 | Asahi Glass Co Ltd | Method for recovering glass from laminated glass |
| JP2002053324A (en) * | 2000-08-07 | 2002-02-19 | Masaki Ijichi | Method for separating glass from laminated glass |
| CN1774483A (en) * | 2003-04-14 | 2006-05-17 | 积水化学工业株式会社 | Method for releasing adhered article,and method for recovering electronic part from a laminate and laminated glass releasing method |
| CN108883979A (en) * | 2016-02-05 | 2018-11-23 | 积水化学工业株式会社 | Intermediate film for laminated glasses and laminated glass |
| CN106145685A (en) * | 2016-06-24 | 2016-11-23 | 湖南省小尹无忌环境能源科技开发有限公司 | A kind of resource utilization method of useless laminated glass |
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Application publication date: 20200225 |