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Composition for forming sealant, application thereof in photovoltaic field, and photovoltaic module

A composition and sealant technology, which is applied in photovoltaic power generation, adhesives, electrical components, etc., can solve the problems that sealants cannot meet the high water vapor barrier performance and low cost, and achieve low thermal stability and low degradation resistance under ultraviolet light. The effect of meeting the requirements of long-term stability and reducing the probability of air bubbles

Inactive Publication Date: 2019-11-26
ZHEJIANG FORST NEW MATERIAL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a composition for forming a sealant, its application in the photovoltaic field and photovoltaic modules, so as to solve the problem that the existing sealants cannot meet the high water vapor barrier performance and low cost

Method used

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  • Composition for forming sealant, application thereof in photovoltaic field, and photovoltaic module
  • Composition for forming sealant, application thereof in photovoltaic field, and photovoltaic module
  • Composition for forming sealant, application thereof in photovoltaic field, and photovoltaic module

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Table 1

[0043]

[0044] Steps:

[0045] 1) Banburying and kneading of water-blocking rubber raw materials:

[0046] According to the raw material formula in Table 1, first add polypropylene, organic bentonite, carbon black N330, talcum powder, mica and antioxidant 1010 into the kneader, raise the temperature to 150 ° C, knead for 45 minutes, and then add silane-modified amorphous α polyolefin 206, continue banburying and kneading for 30 minutes. Put the kneaded rubber material into a high-temperature-resistant release paper barrel with specific properties through the heat-insulating ball valve pipeline while it is hot, and set it aside.

[0047] 2) Coating molding:

[0048] Take out the formed water-blocking glue kneaded in step A from the release paper barrel, put it into the butyl rubber coating machine, and set the temperature of the glue tank and glue head to 130°C. The size of the release paper drum matches the shape and size of the glue tank. According t...

Embodiment 2

[0050] Table 2

[0051] components Ratio (%, weight) Polyisobutylene B30 100 Silane-modified polyisobutylene 20 Organic bentonite 18 Carbon black N770 5 Mica: magnesium silicate: aluminum oxide = 1:1:1 30 Antioxidant 1010:1076=1:1 0.4

[0052] Steps:

[0053] 1) Banburying and kneading of water-blocking rubber raw materials:

[0054] According to the raw material formula in Table 2, first add polyisobutylene B30, organic bentonite, carbon black N770, mica, magnesium silicate, and antioxidants (1010 and 1076) into the kneader, raise the temperature to 150 ° C, knead for 45 minutes, and then add The silane-modified polyisobutylene was continuously kneaded for 30 minutes. Put the kneaded rubber material into a high-temperature-resistant release paper barrel with specific properties through the heat-insulating ball valve pipeline while it is hot, and set it aside.

[0055] 2) Coating molding:

[0056] Take out the formed wate...

Embodiment 3

[0058] table 3

[0059]

[0060]

[0061] Steps:

[0062] 1) Banburying and kneading of water-blocking rubber raw materials:

[0063] According to the raw material formula of Table 3, first butyl rubber 1751, hydrogenated castor oil, carbon black N330, hydrophobic silica R812 and aluminum oxide, light calcium carbonate and antioxidant (1098 and 168) were added in the kneader, and the temperature was raised To 150°C, knead for 45 minutes, then add silane-modified polyisobutylene, continue banburying and kneading for 30 minutes. Put the kneaded rubber material into a high-temperature-resistant release paper barrel with specific properties through the heat-insulating ball valve pipeline while it is hot, and set it aside.

[0064] 2) Coating molding:

[0065] Take out the formed water-blocking glue kneaded in step A from the release paper barrel, put it into the butyl rubber coating machine, and set the temperature of the glue tank and glue head to 130°C. The size of the...

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Abstract

The invention provides a composition for forming a sealant, an application thereof in the photovoltaic field, and a photovoltaic module. The composition includes an olefin polymer, a silane-modified olefin polymer, and a thixotropic agent. The thixotropic agent is added into the olefin polymer and silane modified olefin polymer system, so that the composition has a good thixotropic performance inthe sealant preparation process and the subsequent coating process of the sealant. The good thixotropic property can greatly reduce the probability of bubbles existing in the sealant in the laminatingprocess. The sealant formed by the composition has the advantages of high thermal stability, good degradation resistance under high-intensity ultraviolet rays, low cost and the like. The sealant formed by the composition also has the advantages of excellent water vapor barrier property, excellent thermal stability, excellent degradation resistance under ultraviolet rays, low cost and the like, and can meet the requirement of the photovoltaic field for the long-term stability of the product in the outdoor environment.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a composition for forming a sealant, its application in the field of photovoltaics and a photovoltaic module. Background technique [0002] At present, photovoltaic modules are generally optoelectronic devices composed of light conversion materials and encapsulation materials laminated together. The light conversion part of existing commercial photovoltaic modules is basically based on rigid crystalline silicon cells or rigid and flexible thin film cells. For crystalline silicon cell components, water vapor is an important factor affecting the life of components. The intrusion of water vapor will cause the PIB effect. For thin-film components, the process principle is generally prepared by depositing cadmium telluride, amorphous silicon or copper-indium-selenium compounds on glass, metal plates or flexible films. This type of light conversion material has a higher sensitivity to w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/12C09J123/26C09J11/04C09J123/20C09J123/22C09J11/08H01L31/048
CPCC09J123/12C09J11/04C09J123/22C09J11/08C09J123/20H01L31/0481C08L2201/08C08L2201/14C08L23/26C08K9/04C08K3/346C08L91/00C08L77/00C08L23/22Y02E10/50
Inventor 靳加彬姜凱周光大林建华
Owner ZHEJIANG FORST NEW MATERIAL RES INST CO LTD
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