EVA (Ethylene Viny Acetate) hot melt adhesive packaging material and preparation method thereof

A packaging material, hot melt adhesive technology, applied in the direction of adhesives, monocarboxylate copolymer adhesives, adhesive types, etc., can solve the problem of large difference in thermal expansion coefficient, small thermal conductivity coefficient and high heat transfer efficiency of solar cells problem, to achieve the effect of improving photoelectric conversion efficiency, high heat transfer efficiency, and large heat transfer coefficient
CN102994010AInactive Publication Date: 2013-03-27TIANWEI NEW ENERGY HLDG
3 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANWEI NEW ENERGY HLDG
Publication Date
2013-03-27
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses an EVA (Ethylene Viny Acetate) hot melt adhesive packaging material, which is prepared from ethylene-vinyl acetate copolymer, inorganic heat conductive material treated by coupling reagent, cross-linking agent and antioxygen, the sum of the quality of ethylene-vinyl acetate copolymer and inorganic heat conductive material treated by coupling reagent is 100%, wherein the mass percent of the ethylene-vinyl acetate copolymer is 40-80%, and the mass percent of the inorganic heat conductive material treated by coupling reagent is 20-60%; the quality of the cross-linking agent is 0.1-1.5% that of the ethylene-vinyl acetate copolymer, and the quality of the antioxygen is 0.1-1% that of the ethylene-vinyl acetate copolymer. The invention also discloses a preparation method for the EVA hot melt adhesive packaging material. When the EVA hot melt adhesive packaging material is adopted as a solar energy battery packaging material, the subfissure probability of a battery piece is lowered, and the photoelectric converting efficiency of the solar energy battery can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an EVA material for solar cell packaging, in particular to an EVA hot-melt adhesive packaging material and a preparation method thereof. Background technique

[0002] EVA resin (that is, ethylene-vinyl acetate copolymer) has been widely used as a solar energy encapsulation material. In the process of solar cell encapsulation, EVA resin plays the role of the upper cover and the lower pad for the solar cells. Through thermal lamination, the EVA is bonded to the glass, the cells and the back plate respectively to support and connect the cells. ,Protective effects. When the solar cell is working, its temperature rises rapidly due to strong sunlight and stays at a high temperature for a long time, but the photoelectric conversion efficiency of the solar cell will decrease when it works at high temperature.

[0003] At present, as a solar energy packaging material, EVA only pays attention to its adhesive performance and light tran...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More