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Sealing rubber film for solar cell module

A technology for solar cells and sealant films, applied in the field of solar energy, can solve the problems of poor aging resistance and complex manufacturing process, and achieve the effects of simple manufacturing process, obvious thermal conductivity and low cost

Active Publication Date: 2014-12-03
乐凯胶片股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems of poor aging resistance and complex manufacturing process, the present invention provides a solar cell module sealing film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 65 parts by mass of ethylene octene copolymer (ENGAGE 8130 from Dow Chemical, glass transition temperature -59°C, melting peak temperature 50°C), 35 parts by mass of ethylene-α-olefin block copolymer (ENGAGE 8130 from Dow Chemical INFUSE 9000, melting peak temperature 120°C, melt flow rate measured under the condition of 190°C 2.16kg is 0.5g / 10min), 5 parts by mass of silane coupling agent with an average particle size of 40nm, peroxide-modified oxidation Zinc, 1 mass part of silane-grafted LDPE (SX522A of AEI Compounds: CM401) and 0.1 mass part of anti-aging agent [containing 0.05 mass part of 2,2'-dihydroxy-4-methoxybenzophenone (Taiwan Yongguang Chemical Eversorb 52) as a UV absorber, 0.03 parts by mass of Lowilite-62 (Chemtura Corporation) as a light stabilizer, 0.02 parts by mass of tris (2,4-di-tert-butylphenyl) phosphite ( Ciba Specialty Chemical IRGAFOS-168) as an antioxidant] fully mixed, the mixed material is added to the melt extrusion casting machine for ext...

Embodiment 2

[0066] 90 parts by mass of ethylene-butylene copolymer (ENR 7380 from Dow Chemical, glass transition temperature -52°C, melting peak temperature 48°C), 10 parts by mass of linear low-density polyethylene (LINATHENE LL110 from Taiwan Polymer, melting peak Melt flow rate measured under the condition of 122°C, 190°C and 2.16kg is 1g / 10min), 15 parts by mass of stearic acid with an average particle size of 100μm, peroxide-modified silicon carbide whiskers, 5 parts by mass Silane-grafted MDPE (SX720 from AEI Compounds: CM488) and 0.5 parts by mass of anti-aging agent [containing 0.1 part by mass of 2,2'-dihydroxy-4-methoxybenzophenone (Eversorb 52 from Taiwan Yongguang Chemical) As a UV absorber, 0.2 parts by mass of a mixture of Lowilite-62 and Lowilite-94 with a weight ratio of 1:1 (Chemtura Company) As a light stabilizer, 0.4 parts by mass of tetrakis[methyl-β-(3,5 -di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (IRGANOX-1010 from Ciba Specialty Chemicals) and ...

Embodiment 3

[0068] Melt 80 parts by mass of propylene-ethylene copolymer (VERSIFY 3401 from Dow Chemical, glass transition temperature -32°C, melting peak temperature at 97°C), 20 parts by mass of low-density polyethylene (COSMOTHENE F410-1 from Singapore Polyolefin, The peak temperature is 111°C, the melt flow rate measured under the condition of 190°C 2.16kg is 5g / 10min), 30 parts by mass of hyperbranched polymer with an average particle size of 1 μm, peroxide-modified boron nitride, 20 parts by mass Parts of silane-grafted LLDPE (LINKLON XLE815N from Mitsubishi Chemical Corporation) and 2 parts by mass of anti-aging agent [containing 1 part by mass of 2,2'-dihydroxy-4-methoxybenzophenone (Eversorb 52 from Taiwan Yongguang Chemical) As a UV absorber, 0.6 parts by mass of Lowilite-94 (Chemtura Corporation) as a light stabilizer, 0.4 parts by mass of tetrakis[methyl-β-(3,5-di-tert-butyl-4-hydroxyphenyl ) propionate] pentaerythritol ester (IRGANOX-1010 from Ciba Specialty Chemicals) as an ...

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Abstract

The invention discloses a sealing rubber film for a solar cell module. The sealing rubber film consists of the following components in parts by weight: 100 parts of olefin polymer, 5-30 parts of heat conductive material, 0.05-2 parts of anti-ageing agent and 1-20 parts of adhesive force promoting polymer, wherein the olefin polymer is composed of a first olefin polymer and a second olefin polymer; according to the measurement of a DSC (digital scan converter), the glass transition temperature of the first olefin polymer ranges from (minus) 59 DEG C to (minus) 32 DEG C, and the fusing peak of the first olefin polymer ranges from 42 DEG C to 100 DEG C; the fusing peak of the second olefin polymer ranges from 111 DEG C to 130 DEG C, and the melt flow rate measured under the conditions of 190 DEG C and 2.16 kg is 0.5-5g / 10minute; and the mass ratio of the first olefin polymer to the second olefin polymer is (65:35)-(90:10). The rubber film disclosed by the invention does not permeate towards the transparent rubber film on the glass side, is safe and reliable, obvious in heat conduction effect, and capable of lowering the working temperature of the module and improving the photoelectric conversion efficiency when the module continuously works; and meanwhile, the sealing rubber film is simple in manufacturing process and convenient to use.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a sealant film used for sealing solar battery modules. Background technique [0002] At present, EVA film is widely used in the sealing of solar cell modules. In recent years, some new sealing materials have emerged, such as silicone materials, polyvinyl butyral, polyurethane materials, polyolefin materials, etc., all of which have good properties. Aging resistance and adhesive properties. However, these materials all have the problem of poor thermal conductivity. The surface temperature of solar cell modules is often as high as 80°C when they are used outdoors. Relevant research shows that every 1°C decrease in module temperature can increase power generation efficiency by 0.4%. Therefore, reducing the operating temperature of modules is an effective means to improve power generation efficiency of modules. [0003] The sealing film of the solar cell module is in direct co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J123/08C09J123/14C09J123/06C09J123/16C09J153/00C09J11/04C09J11/06C09J11/08H01L31/048
CPCY02E10/50
Inventor 范云峰徐晓龙郑凯孟丹樊仔欣
Owner 乐凯胶片股份有限公司
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