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POE packaging adhesive and preparation method thereof

An encapsulant and resin technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problem that the volume resistivity of POE encapsulant cannot meet the needs of special environmental use, etc., to improve work efficiency, high Volume resistivity, good dispersion uniformity

Active Publication Date: 2021-01-05
JIANGSU LUSHAN PHOTOVOLTAIC TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide POE encapsulants to solve the technical problem that the volume resistivity of POE encapsulants in the prior art cannot meet the needs of special environments

Method used

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  • POE packaging adhesive and preparation method thereof

Examples

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preparation example Construction

[0037] In a specific embodiment of the present invention, the preparation method of the modified titanium dioxide includes: mixing the modifying agent with the titanium dioxide, and reacting at 90-150° C. for 80-120 minutes.

[0038] As in different embodiments, in the preparation of the modified titanium dioxide, the reaction temperature can be 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, etc.; the reaction time can be 80min, 90min , 100min, 110min, 120min and so on.

[0039]In a specific embodiment of the present invention, the preparation method of the masterbatch includes: extruding and pelletizing the mixture of the modified titanium dioxide and the POE resin through a twin-screw extruder, each of the twin-screw extruders The section temperature is 80℃~90℃, 100℃~120℃, 120℃~130℃, 120℃~130℃, 120℃~130℃, 120℃~130℃, 120℃~130℃, 120℃~130℃ , 80 ℃ ~ 100 ℃.

[0040] As in different embodiments, among the raw materials of the POE encapsulant, the amount of masterbatch can be 10...

Embodiment 1

[0051] This embodiment provides a method for preparing POE encapsulation glue, including the following steps:

[0052] (1) Weigh stearic acid and titanium dioxide powder with a mass ratio of 8:100, stir and react at 120° C. for 100 min to obtain modified titanium dioxide.

[0053] (2) In parts by weight, take 60 parts of modified titanium dioxide prepared in step (1) and 40 parts of POE resin whose melt index is 5g / 10min, mix uniformly, extrude and draw through a twin-screw extruder Strips and pellets to obtain white masterbatch; the temperature of each section of the twin-screw extruder is 80°C, 100°C, 130°C, 130°C, 130°C, 130°C, 130°C, 130°C, 100°C.

[0054] (3) In parts by weight, take 100 parts of POE resins with a melt index of 5g / 10min, 18 parts of white master batches made in step (2), 1 part of tert-butyl peroxide 2-ethylhexyl carbonate Esters, 2 parts of triallyl cyanurate, 0.5 parts of γ-aminopropyltriethoxysilane, 0.2 parts of 2,4-dihydroxybenzophenone, 0.1 parts o...

Embodiment 2

[0056] This embodiment provides a method for preparing POE encapsulation glue, including the following steps:

[0057] (1) Weigh stearic acid, oleic acid and titanium dioxide powder with a mass ratio of 8:2:100, stir and react at 120° C. for 100 min to obtain modified titanium dioxide.

[0058] (2) In parts by weight, take 60 parts of modified titanium dioxide prepared in step (1) and 40 parts of POE resin with a melt index of 13g / 10min respectively, mix uniformly, extrude and draw through a twin-screw extruder Strips and pellets to obtain white masterbatch; the temperature of each section of the twin-screw extruder is 80°C, 100°C, 120°C, 120°C, 120°C, 120°C, 120°C, 120°C, 90°C.

[0059] (3) In parts by weight, take 100 parts of POE resins with a melt index of 13g / 10min, 18 parts of white master batches made in step (2), 1 part of tert-butyl peroxide 2-ethylhexyl carbonate Esters, 0.5 parts of 1,1-di(tert-butylperoxy)cyclohexane, 1.5 parts of trimethylolpropane trimethacrylat...

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Abstract

The invention relates to the technical field of packaging adhesives, in particular to a POE packaging adhesive and a preparation method thereof. The POE packaging adhesive is mainly prepared from thefollowing raw materials in parts by weight: 100 parts of POE resin, 10-30 parts of master batch, 1-2.5 parts of a cross-linking agent, 0.8-2 parts of an assistant cross-linking agent, 0.2-1 part of atackifier, 0.2-0.8 part of an ultraviolet absorbent and 0.1-0.8 part of an antioxidant, wherein the master batch is mainly prepared from the following components in percentage by mass: 30%-60% of modified titanium dioxide and 40%-70% of POE resin. By introducing the modified titanium dioxide filler and adopting specific raw material composition and proportion, the adhesive film has higher volume resistivity which can reach 1*10<16> omega.m or more, the tendency of agglomeration of titanium dioxide particles is reduced through modification treatment of titanium dioxide, the dispersion uniformity is good, and the prepared POE packaging adhesive is uniform in reflectivity and beneficial to improvement of the working efficiency of assemblies.

Description

technical field [0001] The invention relates to the technical field of packaging glue, in particular to a POE packaging glue and a preparation method thereof. Background technique [0002] With the development of the photovoltaic industry, the market has put forward higher and higher requirements for the quality of solar photovoltaic modules. There are many factors that affect the quality of photovoltaic modules. Among them, the packaging material of photovoltaic modules is one of the factors that directly affect the anti-PID performance of modules. In photovoltaic power generation systems, photovoltaic modules are exposed to the natural environment for a long time, especially in coastal areas, where water vapor is very likely to be generated in humid and high-temperature environments. Water vapor infiltrating the interior of the module will increase the conductivity of the packaging material and increase the leakage current of the module. Polarization occurs on the surface....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J11/04
CPCC09J123/0815C09J11/04C08K2003/2241C08K13/06C08K9/04C08K3/22C08K5/544C08K5/526C08K5/14
Inventor 施其锋汪加胜唐舫成郭森
Owner JIANGSU LUSHAN PHOTOVOLTAIC TECH
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