Low-viscosity flame-retardant casting glue and preparation method thereof

A technology of potting glue and base glue, applied in the field of flame retardant materials, can solve the problems of insufficient safety of components, easy occurrence of air bubbles, poor leveling, etc., to achieve good flame retardancy, smooth discharge of air bubbles, and low mixing. The effect of viscosity

Inactive Publication Date: 2017-12-15
CSI SOLAR POWER GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, although the potting compound in the prior art has a certain flame retardancy, it is not enough to ensure the safety of the component under extreme conditions, and because the viscosity is relatively high, it is easy to appear bubbles and poor leveling when used. unpleasant sight

Method used

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  • Low-viscosity flame-retardant casting glue and preparation method thereof
  • Low-viscosity flame-retardant casting glue and preparation method thereof
  • Low-viscosity flame-retardant casting glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] In this embodiment, the flame retardant encapsulant is composed of Agent A and Agent B at a mass ratio of 5:1, and Agent A is mainly composed of the following components by weight:

[0075]

[0076] The B agent is mainly composed of the following components by weight:

[0077]

[0078]

[0079] The preparation method is as follows:

[0080] (1) Stir and mix 107 glue with a viscosity of 750mPa·s and silicone oil for 10min at a stirring speed of 20r / min under a vacuum condition of -0.1MPa;

[0081] (2) Add aluminum hydroxide and titanium dioxide to the mixture obtained in step (1), stir and mix for 15min under normal pressure at a stirring speed of 20r / min;

[0082] (3) Add ultramarine blue and curing agent to the mixture obtained in step (2), and stir and mix for 20min at a stirring speed of 40r / min under a vacuum condition of -0.1MPa in vacuum;

[0083] (4) Add decabromodiphenylethane to the mixture obtained in step (3), stir and mix for 5min at a stirring sp...

Embodiment 2

[0086] In this embodiment, the flame retardant encapsulant is composed of Agent A and Agent B at a mass ratio of 6:1, and Agent A is mainly composed of the following components by weight:

[0087]

[0088]

[0089] The B agent is mainly composed of the following components by weight:

[0090]

[0091] The preparation method is as follows:

[0092] (1) Stir and mix 107 glue with a viscosity of 750mPa·s and silicone oil at a vacuum condition of -0.09MPa at a stirring speed of 15r / min for 13min;

[0093] (2) Add aluminum hydroxide and titanium dioxide to the mixture obtained in step (1), and stir and mix for 20min under normal pressure at a stirring speed of 10r / min;

[0094] (3) Add ultramarine blue and curing agent to the mixture obtained in step (2), and stir and mix for 15 minutes at a stirring speed of 50 r / min under a vacuum condition of -0.09 MPa in a vacuum;

[0095] (4) Add decabromodiphenylethane to the mixture obtained in step (3), stir and mix for 5min at a s...

Embodiment 3

[0098] In this embodiment, the flame retardant encapsulant is composed of Agent A and Agent B at a mass ratio of 5.5:1, and Agent A is mainly composed of the following components by weight:

[0099]

[0100] The B agent is mainly composed of the following components by weight:

[0101]

[0102] The preparation method is as follows:

[0103] (1) Stir and mix 107 glue with a viscosity of 750mPa·s and silicone oil at a vacuum of -0.095MPa for 15min at a stirring speed of 10r / min;

[0104] (2) Add aluminum hydroxide and titanium dioxide to the mixture obtained in step (1), stir and mix for 25min under normal pressure at a stirring speed of 15r / min;

[0105] (3) Add ultramarine blue and curing agent to the mixture obtained in step (2), and stir and mix for 20min at a stirring speed of 45r / min under a vacuum condition of -0.095MPa in vacuum;

[0106] (4) Add decabromodiphenylethane to the mixture obtained in step (3), stir and mix for 10min under normal pressure at a stirrin...

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Abstract

The invention provides low-viscosity flame-retardant casting glue and a preparation method thereof. The casting glue mainly comprises an A agent and a B agent. The A agent can improve flame retardance of a product through aluminium hydroxide and decabromodiphenylethane, which have a synergic effect on improving flame retardance of the product. Moreover, decabromodiphenylethane can further improve thermal stability and ultraviolet resistance of the product on the basis of aluminium hydroxide. The A agent has low leachability during storage. Through application of low-viscosity base glue, the entire viscosity of the A agent is greatly reduced. Through cooperation of the A agent with B agent during a using process, it is ensured that the product has better leveling property and low mixing viscosity, which is beneficial for bubble discharge and smooth appearance during stirring, mixing and use. Through cooperation of the components, the flame-retardant casting glue has excellent comprehensive performance. The preparation method is simple and easy to realize, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of flame-retardant materials, and relates to a flame-retardant potting glue and a preparation method thereof, in particular to a low-viscosity flame-retardant potting glue and a preparation method thereof. Background technique [0002] The potting glue for photovoltaic modules is mainly used for the packaging of the junction box on the module, which protects the output part of the module current and the diode, and prevents the hot spot of the module, the oxidation of the metal lead, and the deformation of the backplane of the junction box caused by overheating. damage phenomenon. When the temperature of the metal parts such as the conductive block in the junction box is too high due to the above-mentioned abnormal performance during the use of the module, the junction box or the backplane will have a great risk of burning, causing immeasurable losses to the end of use. Therefore, there is a high requirement for the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06
CPCC08L2201/02C08L2201/08C08L2203/204C08L2205/02C08L2205/03C09J11/04C09J11/06C09J183/06C08L83/04C08L71/00C08K13/02C08K2003/2227C08K2003/2241C08K5/03C08K5/5415C08K5/5419C08K5/544C08K5/5435C08K5/57
Inventor 何帅杨连丽沈坚
Owner CSI SOLAR POWER GROUP CO LTD
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