A kind of silane grafted poe adhesive film for photovoltaic encapsulation and preparation method

A silane grafting and adhesive film technology, applied in the directions of grafted polymer adhesives, adhesives, films/sheets without carriers, etc., can solve the problems of poor thermal creep resistance and inability to use traditional crystalline silicon photovoltaic modules, etc. Achieve the effect of preventing delamination, shortening component lamination time, and increasing melting temperature

Active Publication Date: 2021-02-26
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing non-crosslinked POE film on traditional crystalline silicon photovoltaic modules can solve the problem of air bubbles, it is still prone to poor thermal creep resistance during the aging process, and cannot be applied to traditional crystalline silicon photovoltaic modules

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) 95 parts of POE resin (melt flow rate is 16g / 10min, light transmittance>91%, volume resistivity>1.0×10 15 , melting temperature is 76°C), 0.3 parts of vinyltrimethoxysilane, 0.05 parts of dicumyl peroxide, 10 parts of polyurethane elastomer resin (light transmittance > 90%, volume resistivity > 1.0×10 15 , the melting temperature is 145°C), 0.1 part of tripropenyl isocyanurate, 0.5 part of POE grafted maleic anhydride, mixed evenly, poured into a twin-screw extruder, and prepared graft masterbatch at 160-220°C, Standby; (2) Mix 5 parts of POE resin (melt flow rate is 16g / 10min, light transmittance>91%, volume resistivity>1.0×10 15 , melting temperature is 76°C), 0.1 part of 3,5-di-tert-butyl-4-hydroxy-hexadecyl benzoate, 0.1 part of 2-benzotriazol-2-yl-4,6-di-tert Butylphenol, 0.1 part of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate are mixed evenly, poured into a twin-screw extruder, and prepared at 160-220°C Auxiliary masterbatch, spare; (3) Mix ...

Embodiment 2

[0033] (1) 95 parts of POE resin (melt flow rate is 16g / 10min, light transmittance>91%, volume resistivity>1.0×10 15 , melting temperature is 76°C), 0.5 parts of γ-methacryloxypropyltrimethoxysilane, 0.5 parts of vinyltrimethoxysilane, 0.1 part of tert-butyl peroxy-2-ethylhexyl carbonate, 20 Parts of styrene-ethylene-butylene-styrene block copolymer elastomer resin (light transmittance>90%, volume resistivity>1.0×10 15, melting temperature is 155°C), 0.1 part of tripropenyl isocyanurate, 0.1 part of divinylbenzene, 1.5 parts of POE grafted maleic anhydride, mix well, pour into twin-screw extruder, 160-220°C Prepare grafted masterbatches for later use; (2) Mix 5 parts of POE resin (melt flow rate is 16g / 10min, light transmittance>91%, volume resistivity>1.0×10 15 , melting temperature is 76°C), 0.05 part of bis(2,2,6,6-tetramethylpiperidinyl) sebacate, 0.05 part of 2-hydroxy-4-n-octyloxybenzophenone, 0.6 Parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pent...

Embodiment 3

[0036] (1) 95 parts of POE resin (melt flow rate is 3g / 10min, light transmittance> 85%, volume resistivity> 1.0×10 14 , melting temperature is 97°C), 3 parts of vinyltriethoxysilane, 0.25 parts of dicumyl peroxide, 5 parts of polyurethane elastomer resin (light transmittance > 90%, volume resistivity > 1.0×10 15 , melting temperature is 145°C), 5 parts of styrene-ethylene-butylene-styrene block copolymer elastomer resin (light transmittance>90%, volume resistivity>1.0×10 15 , the melting temperature is 155°C), 0.2 parts of trimethylolpropane triacrylate, 2.5 parts of POE grafted maleic anhydride, 1.5 parts of POE grafted glycidyl methacrylate, mixed evenly, and poured into the twin-screw extruder , 160-220°C to prepare grafted masterbatches for later use; (2) Mix 5 parts of POE resin (melt flow rate is 3g / 10min, light transmittance>85%, volume resistivity>1.0×10 14 , melting temperature is 97°C), 0.3 parts of bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 0.3 pa...

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Abstract

The invention belongs to the field of photovoltaic encapsulation adhesive film and its preparation, and particularly relates to a silane-grafted POE photovoltaic encapsulation adhesive film and a preparation method thereof; the mass parts composition of the silane-grafted POE adhesive film is as follows: ethylene-octene copolymer resin 100 parts, 0.3-3 parts of silane grafting monomer, 0.05-0.25 parts of initiator, 5-20 parts of modified resin, 0.05-0.25 parts of co-grafting monomer, 0.5-4 parts of compatibilizer, UV stabilizer 0.05-0.3 part, 0.05-0.3 part of ultraviolet light absorber, 0.1-0.6 part of antioxidant; the adhesive film for POE photovoltaic encapsulation prepared by the present invention can be applied to flexible thin-film photovoltaic modules and traditional crystalline silicon photovoltaic modules at the same time, and can solve the problem of Problems of air bubbles, unmelted and poor thermal creep resistance in the aging process, shorten the lamination time of components, reduce the packaging defective rate, improve the production efficiency of components, and reduce production costs.

Description

technical field [0001] The invention belongs to the field of photovoltaic encapsulation adhesive film and its preparation, in particular to a silane-grafted POE photovoltaic encapsulation adhesive film and a preparation method thereof. Background technique [0002] The traditional packaging film for solar photovoltaic modules is mainly ethylene-vinyl acetate copolymer (EVA) film, and the VA (vinyl acetate) content in the film needs to be greater than 25%. During the long-term use of solar photovoltaic modules outdoors, due to water vapor penetration and photothermal aging, the VA segment in the EVA molecular segment will degrade and release acetic acid, resulting in bubbles, delamination and yellowing. Reducing the light transmittance and volume resistivity of the adhesive film reduces the potential on the battery sheet, thereby reducing the power generation efficiency of the module and shortening the service life of the module. [0003] There are no unsaturated bonds in po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/10C09J7/30C09J151/06C09J11/06C09J11/08C08F291/12C08F230/08C08F226/06C08J3/22
CPCC08F255/02C08F283/006C08F285/00C08J3/226C08J2351/06C08J2423/08C08J2451/00C08J2451/08C08K2201/014C08L2205/035C09J11/06C09J11/08C09J151/06C09J2203/322C09J2423/04C09J2451/00C09J7/10C09J7/30C09J2301/312C09J2301/408C09J2301/414C08F230/08C08F226/06C08L51/08C08L51/00C08L23/0815C08K5/1345C08K5/5475
Inventor 吕松金旭张刚
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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