CN103725212A - High transparency EVA (ethylene-vinyl acetate) encapsulation adhesive film and preparation method thereof - Google Patents
High transparency EVA (ethylene-vinyl acetate) encapsulation adhesive film and preparation method thereof Download PDFInfo
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- CN103725212A CN103725212A CN201310690550.6A CN201310690550A CN103725212A CN 103725212 A CN103725212 A CN 103725212A CN 201310690550 A CN201310690550 A CN 201310690550A CN 103725212 A CN103725212 A CN 103725212A
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Abstract
The invention discloses a high transparency EVA (ethylene-vinyl acetate) encapsulation adhesive film and a preparation method thereof. The encapsulation adhesive film comprises the following components in parts by weight: 100 parts of an EVA copolymer, 1 to 2 parts of a cross-linking hardening agent, 0.5 to 0.9 part of an anti-oxidizer, 0.2 to 0.5 part of a light stabilizer, 5 to 10 parts of silicon dioxide, 15 to 20 parts of phenyl vinyl silicone resin, and 1 to 2 parts of an adhesion promotor, wherein the mass content of VAC (vinyl acetate) in an ethylene-vinyl acetate copolymer is 28 to 33 percent, and the melt index value is 30 to 50g/10min. The EVA encapsulation adhesive film provided by the invention has the advantages that the mechanical strength is excellent, and the stable high light transmittance is achieved under a thermal oxidation condition.
Description
Technical field
The invention belongs to solar components packaging adhesive film preparation field, particularly, the present invention relates to a kind of high transmission rate EVA packaging adhesive film and preparation method thereof.
Background technology
The sticking glued membrane of a kind of thermoset of packaging adhesive film for solar cell (EVA), for being placed on doubling glass middle (EVA is the abbreviation of Ethylene ethene Vinyl vinyl Acetate acetate).Superiority because EVA glued membrane has at aspects such as clinging power, weather resistance, optical characteristics, makes it be more and more widely used in electric current assembly and various optical articles.
Along with the continuous innovation of solar battery technology, the transmittance of EVA glued membrane has also been proposed to comparatively strict requirement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high transmission rate EVA packaging adhesive film, and this EVA packaging adhesive film not only has good physical strength, and has stable high transmission rate under hot oxygen condition.
It is a kind of high transmission rate EVA packaging adhesive film that the present invention solves the problems of the technologies described above adopted technical scheme, the component that comprises following parts by weight: 100 parts of ethylene-vinyl acetate copolymers, crosslinking and curing agent 1-2 part, oxidation inhibitor 0.5-0.9 part, photostabilizer 0.2-0.5 part; Silicon-dioxide 5-10 part, phenyl vinyl polysiloxane 15-20 part, tackifier 0.2-1 part;
Wherein, in described ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic mass content is 28-33%, and melt index values is 30-50g/10min.。
Described crosslinking and curing agent is tert-butyl hydroperoxide 2-ethylhexyl carbonic ether.
Described oxidation inhibitor is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
Described tackifier are r-methacryloxypropyl trimethoxy silane.
Described photostabilizer is 2-(2H-benzotriazole-2)-4,6-bis-(1-methyl isophthalic acid-phenylethyl) phenol.
The preparation method of described a kind of high transmission rate EVA packaging adhesive film, comprising:
(1) according to following parts by weight, take raw material: 100 parts of ethylene-vinyl acetate copolymers, crosslinking and curing agent 1-2 part, oxidation inhibitor 0.5-0.9 part, photostabilizer 0.2-0.5 part; Silicon-dioxide 5-10 part, phenyl vinyl polysiloxane 15-20 part, tackifier 0.2-1 part;
Wherein, in described ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic mass content is 28-33%, and melt index values is 30-50g/10min.；
(2) component described step (1) being taken mixes, and makes mixed system temperature maintain 80-140 ℃ in mixing process, then uses twin screw extruder granulation, then prepares high transmission rate EVA packaging adhesive film of the present invention with single screw extrusion machine.
Further, the thickness of described high transmission rate EVA packaging adhesive film is 0.5mm.
Compared with prior art, tool has the following advantages in the present invention:
(1) EVA packaging adhesive film of the present invention not only has good physical strength, and has stable high transmission rate under hot oxygen condition.
(2) preparation method of the present invention is simple, and production cost reduces.
Embodiment
In order to understand better content of the present invention, below in conjunction with specific embodiment, be described further.Should be understood that these embodiment, only for the present invention is further described, limit the scope of the invention and be not used in.In addition should be understood that after having read content of the present invention, person skilled in art makes some nonessential change or adjustment to the present invention, still belongs to protection scope of the present invention.
Embodiment 1
Prepare in accordance with the following methods high transmission rate EVA packaging adhesive film:
(1) according to following parts by weight, take raw material: 100 parts of ethylene-vinyl acetate copolymers, tert-butyl hydroperoxide 2-ethylhexyl carbonic ether 1-2 part, three (2,4-di-tert-butyl-phenyl) phosphorous acid ester 0.5-0.9 part, 2-(2H-benzotriazole-2)-4,6-bis-(1-methyl isophthalic acid-phenylethyl) phenol 0.2-0.5 part; Silicon-dioxide 5-10 part, phenyl vinyl polysiloxane 15-20 part, r-methacryloxypropyl trimethoxy silane 0.2-1 part;
Wherein, in described ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic mass content is 30%, and melt index values is 35g/10min.；
(2) component described step (1) being taken mixes, and makes mixed system temperature maintain 80 ℃ in mixing process, then uses twin screw extruder granulation, then prepares with single screw extrusion machine the high transmission rate EVA packaging adhesive film that thickness is 0.5mm.The EVA packaging adhesive film tensile strength of embodiment 1 preparation is 15.3Mpa, with glassy bond intensity be 70N/cm, transmittance is 93%.
Comparative example 1
According to the method identical with embodiment 1, prepare EVA packaging adhesive film, its difference is that the usage quantity of described silicon-dioxide is 0.5 weight part.Contrast, the EVA packaging adhesive film tensile strength of example 1 is 14.9Mpa, with glassy bond intensity be 69N/cm, transmittance is 90%.
Comparative example 2
According to the method identical with embodiment 1, prepare EVA packaging adhesive film, its difference is, does not use phenyl vinyl polysiloxane.Contrast, the EVA packaging adhesive film tensile strength of example 2 is 14.0Mpa, with glassy bond intensity be that 65N/cm transmittance is 89%.
Transmittance test under hot oxygen condition
The glued membrane of embodiment 1 and comparative example 1, comparative example 2 preparations is together placed in to baking oven, keeps 90 ℃ of baking oven constant temperature, start air blast to keep oxygen in baking oven to continue supply, different time sampling and measuring transmittance.The results are shown in Table 1
Table 1
| Time/h | Embodiment 1 | Comparative example 1 | Comparative example 2 |
| 0 | 93 | 90 | 89 |
| 72 | 92.8 | 89 | 88 |
Claims (7)
1. a high transmission rate EVA packaging adhesive film, is characterized in that, comprises the component of following parts by weight: 100 parts of ethylene-vinyl acetate copolymers, crosslinking and curing agent 1-2 part, oxidation inhibitor 0.5-0.9 part, photostabilizer 0.2-0.5 part; Silicon-dioxide 5-10 part, phenyl vinyl polysiloxane 15-20 part, tackifier 0.2-1 part;
Wherein, in described ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic mass content is 28-33%, and melt index values is 30-50g/10min.
2. a kind of high transmission rate EVA packaging adhesive film as claimed in claim 1, is characterized in that, described crosslinking and curing agent is tert-butyl hydroperoxide 2-ethylhexyl carbonic ether.
3. a kind of high transmission rate EVA packaging adhesive film as claimed in claim 1, is characterized in that, described oxidation inhibitor is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
4. a kind of high transmission rate EVA packaging adhesive film as claimed in claim 1, is characterized in that, described tackifier are r-methacryloxypropyl trimethoxy silane.
5. a kind of high transmission rate EVA packaging adhesive film as claimed in claim 1, is characterized in that, described photostabilizer is 2-(2H-benzotriazole-2)-4,6-bis-(1-methyl isophthalic acid-phenylethyl) phenol.
6. the preparation method of a kind of high transmission rate EVA packaging adhesive film described in the claims, is characterized in that, comprising:
(1) according to following parts by weight, take raw material: 100 parts of ethylene-vinyl acetate copolymers, crosslinking and curing agent 1-2 part, oxidation inhibitor 0.5-0.9 part, photostabilizer 0.2-0.5 part; Silicon-dioxide 5-10 part, phenyl vinyl polysiloxane 15-20 part, tackifier 0.2-1 part;
Wherein, in described ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic mass content is 28-33%, and melt index values is 30-50g/10min.；
(2) component described step (1) being taken mixes, and makes mixed system temperature maintain 80-140 ℃ in mixing process, then uses twin screw extruder granulation, then prepares high transmission rate EVA packaging adhesive film of the present invention with single screw extrusion machine.
7. the preparation method of a kind of high transmission rate EVA packaging adhesive film as claimed in claim 6, is characterized in that, the thickness of described high transmission rate EVA packaging adhesive film is 0.5mm.
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| CN201310690550.6A CN103725212A (en) | 2013-12-14 | 2013-12-14 | High transparency EVA (ethylene-vinyl acetate) encapsulation adhesive film and preparation method thereof |
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| CN201310690550.6A CN103725212A (en) | 2013-12-14 | 2013-12-14 | High transparency EVA (ethylene-vinyl acetate) encapsulation adhesive film and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212050A (en) * | 2014-08-26 | 2014-12-17 | 中天光伏材料有限公司 | Polyethylene-fiber-modified EVA (Ethylene Vinyl Acetate) packaging adhesive film |
| CN105023963A (en) * | 2015-07-28 | 2015-11-04 | 宁波贝达新能源科技股份有限公司 | Silicon solar module |
| CN105140323A (en) * | 2015-07-28 | 2015-12-09 | 宁波贝达新能源科技股份有限公司 | Efficient silicon solar module |
| CN105924760A (en) * | 2016-06-18 | 2016-09-07 | 赵月 | Packaging film for electronic components |
| CN106753006A (en) * | 2016-12-02 | 2017-05-31 | 南京汇鑫光电材料有限公司 | A kind of optical thermal press mold |
| CN107459948A (en) * | 2017-09-12 | 2017-12-12 | 江西省科学院应用化学研究所 | A kind of organic-silicon-modified EVA adhesive film and preparation method thereof |
| CN111500207A (en) * | 2020-04-30 | 2020-08-07 | 江苏达胜热缩防护用品有限公司 | Fixing sheet prefabricated heat shrinkable tape |
| CN112094621A (en) * | 2020-09-23 | 2020-12-18 | 石家庄欣诺达装饰材料科技有限公司 | Preparation method of aldehyde-blocking edge sealing adhesive |
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| JPH06240067A (en) * | 1993-02-18 | 1994-08-30 | Tosoh Corp | Adhesive composition |
| CN102352193A (en) * | 2011-08-02 | 2012-02-15 | 孙观幸 | Functional EVA (ethylene vinyl acetate) adhesive film of solar cell |
| CN102408841A (en) * | 2011-09-19 | 2012-04-11 | 陈光伟 | EVA film for packaging high-transmittance solar cell and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212050A (en) * | 2014-08-26 | 2014-12-17 | 中天光伏材料有限公司 | Polyethylene-fiber-modified EVA (Ethylene Vinyl Acetate) packaging adhesive film |
| CN105023963A (en) * | 2015-07-28 | 2015-11-04 | 宁波贝达新能源科技股份有限公司 | Silicon solar module |
| CN105140323A (en) * | 2015-07-28 | 2015-12-09 | 宁波贝达新能源科技股份有限公司 | Efficient silicon solar module |
| CN105924760A (en) * | 2016-06-18 | 2016-09-07 | 赵月 | Packaging film for electronic components |
| CN106046529A (en) * | 2016-06-18 | 2016-10-26 | 赵月 | Electronic component packaging film with high water resistance |
| CN106753006A (en) * | 2016-12-02 | 2017-05-31 | 南京汇鑫光电材料有限公司 | A kind of optical thermal press mold |
| CN106753006B (en) * | 2016-12-02 | 2018-03-16 | 南京汇鑫光电材料有限公司 | A kind of optical thermal press mold |
| CN107459948A (en) * | 2017-09-12 | 2017-12-12 | 江西省科学院应用化学研究所 | A kind of organic-silicon-modified EVA adhesive film and preparation method thereof |
| CN111500207A (en) * | 2020-04-30 | 2020-08-07 | 江苏达胜热缩防护用品有限公司 | Fixing sheet prefabricated heat shrinkable tape |
| CN111500207B (en) * | 2020-04-30 | 2022-04-15 | 江苏达胜热缩防护用品有限公司 | Fixing sheet prefabricated heat shrinkable tape |
| CN112094621A (en) * | 2020-09-23 | 2020-12-18 | 石家庄欣诺达装饰材料科技有限公司 | Preparation method of aldehyde-blocking edge sealing adhesive |
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Application publication date: 20140416 |