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A Polyolefin Photovoltaic Film with High Peel Strength Retention

A strength retention, polyolefin technology, applied in the field of photovoltaic module packaging materials, can solve the problems of poor compatibility of non-polar substrates, easy failure of adhesive films, etc., to improve the poor compatibility and improve peel strength. retention rate, the effect of increasing application performance

Active Publication Date: 2018-06-05
GUANGZHOU LUSHAN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polyolefin photovoltaic film for the above-mentioned defects of the prior art. In the polyolefin photovoltaic film formulation system, by adding modified polyolefin, the additives and polyolefin non-polarity are improved. Poor compatibility with non-toxic substrates, migration and diffusion lead to easy failure of the adhesive film and other shortcomings, improve the peel strength retention rate of polyolefin photovoltaic film, thereby improving the stable adhesive performance of polyolefin photovoltaic film

Method used

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  • A Polyolefin Photovoltaic Film with High Peel Strength Retention
  • A Polyolefin Photovoltaic Film with High Peel Strength Retention
  • A Polyolefin Photovoltaic Film with High Peel Strength Retention

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A polyolefin light film with high peel strength retention rate is composed of the following components in parts by weight: 100 parts of polyolefin (polyolefin resin a) with a melting index of 35g / 10min and a melting point of 60°C, 20 parts of polyolefin resin Branch γ-methacryloxypropyltrimethoxysilane masterbatch (modified polyolefin), 0.4 parts of 1,1-di-tert-butylperoxycyclohexane (organic peroxide initiator), 1.2 parts Triallyl cyanurate (crosslinking accelerator), 0.5 parts of vinyltrimethoxysilane (tackifier), 0.2 parts of bis-2,2,6,6-tetramethylpiperidinol sebacate Ester (light stabilizer), 0.5 parts of 2-hydroxy-4-n-octyloxybenzophenone (ultraviolet light absorber), mix the above components evenly through the mixer, put them into the casting machine, press the setting With good process parameters, the polyolefin photovoltaic film is made through plasticizing extrusion, casting, traction and winding.

[0030] Wherein, the polyolefin grafted gamma-methacryloxypro...

Embodiment 2

[0032] A polyolefin optical film with a high peel strength retention rate is composed of the following components in parts by weight: 100 parts of polyolefin (polyolefin resin a) with a melting index of 3g / 10min and a melting point of 110°C, 10 parts of polyolefin Graft maleic anhydride masterbatch (modified polyolefin), 1.5 parts of tert-butyl peroxyisopropyl carbonate (organic peroxide initiator), 0.4 part of trimethylolpropane trimethacrylate (crosslinking accelerator agent), 1.0 part of γ-methacryloxypropyltrimethoxysilane (tackifier), 0.1 part of bis-2,2,6,6-tetramethylpiperidinol sebacate (light stabilized agent), 0.2 parts of 2-hydroxy-4-n-octyloxybenzophenone (ultraviolet light absorber). The above components are mixed evenly by the mixer, put into the casting machine, and according to the set process parameters, the polyolefin photovoltaic film is made through plasticizing extrusion, casting, traction and winding.

[0033]Wherein, polyolefin grafted maleic anhydride ...

Embodiment 3

[0035] A polyolefin light film with high peel strength retention rate is composed of the following components in parts by weight: 100 parts of polyolefin (polyolefin resin a) with a melting index of 20g / 10min and a melting point of 80°C, 30 parts of polyolefin Graft glycidyl methacrylate masterbatch (modified polyolefin), 0.3 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane (organic peroxide initiator) , 1.5 parts of tetraallyloxyethane (crosslinking accelerator), 0.1 part of γ-aminopropyltriethoxysilane (tackifier), 0.5 parts of sebacic acid bis-2,2,6,6- Tetramethylpiperidinol ester (light stabilizer), 0.1 part of 2-hydroxy-4-n-octyloxybenzophenone (ultraviolet light absorber). The above components are mixed evenly by the mixer, put into the casting machine, and according to the set process parameters, the polyolefin photovoltaic film is made through plasticizing extrusion, casting, traction and winding.

[0036] Wherein, the polyolefin grafted glycidyl methacryla...

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Abstract

The invention discloses a polyolefin photovoltaic membrane high in peel strength retention rate. The polyolefin photovoltaic membrane is prepared from, by weight parts, 100 parts of polyolefin resin a, 5-30 parts of modified polyolefin, 0.3-1.5 parts of organic peroxide initiator, 0.4-1.5 parts of crosslinking accelerator, 0.1-1.0 part of tackifier, 0.1-0.5 part of light stabilizer and 0.1-0.5 part of ultraviolet absorption agent. By adding modified polyolefin, the shortcomings that the compatibility between an addition agent and a polyolefin non-polar base material is not good and an adhesive membrane loses efficacy due to migration and diffusion are overcome, the peel strength retention rate of the polyolefin photovoltaic membrane is improved, and thus the stable adhesion performance of the polyolefin photovoltaic membrane is improved.

Description

technical field [0001] The invention relates to the field of packaging materials for photovoltaic modules, in particular to a polyolefin photovoltaic film with a high peel strength retention rate. Background technique [0002] As people pay more and more attention to clean energy, solar cells will also be extended to every people's field of vision. Traditional solar cells use EVA photovoltaic film as the main packaging material, but limited by the physical properties of EVA itself, it has certain shortcomings. For example, EVA material will degrade into acetic acid, and acetic acid will corrode the cell and accelerate the degradation of the cell. of aging. In addition, there is a certain potential-induced power decay (PID) phenomenon in EVA photovoltaic film. [0003] Polyolefin photovoltaic film is the new favorite of the new generation of solar cells because it has many incomparable advantages of EVA, such as the water vapor transmission rate of polyolefin is less than 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/02C08L51/06C08K5/14C08K5/3492C08K5/5425C08K5/3462C08K5/132C08K5/06C08K5/544C08J3/22
CPCC08J3/226C08J2323/02C08J2423/02C08J2451/06C08L23/02C08L2205/025C08L2205/03C08L51/06C08K5/14C08K5/3492C08K5/5425C08K5/3462C08K5/132C08K5/06C08K5/544
Inventor 余鹏吴建东李伟博唐舫成汪加胜
Owner GUANGZHOU LUSHAN NEW MATERIALS
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