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Preparation method of infrared blocking EVA film

An infrared, EVA85% technology, applied in the field of preparation of infrared blocking EVA film, can solve the problems of infrared blocking performance, insufficient transparency, high near-infrared blocking rate, and high visible light transmittance of glass, and achieves high near-infrared blocking rate and isolation. The effect of high solar thermal radiation and visible light transmittance

Inactive Publication Date: 2020-07-10
SHENZHEN GAOREN ELECTRONICS NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the tendency of the existing EVA film to have a simple bonding function, or focus on visual effects such as color and appearance, but its infrared barrier performance and transparency are insufficient, and cannot meet the existing functional requirements. Provide a A kind of preparation method of infrared ray blocking EVA film, adds nanometer ATO composition in the formula composition of EVA film, thereby makes the EVA film after the preparation have the function of good blocking infrared rays, the glass visible light transmittance of making with EVA film among the present invention High, high near-infrared rejection rate, can effectively isolate solar heat radiation, and has a good energy-saving effect, thus solving the above problems

Method used

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  • Preparation method of infrared blocking EVA film
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  • Preparation method of infrared blocking EVA film

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Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: A kind of preparation method of infrared cut-off EVA film, comprise EVA, nanometer ATO dispersion liquid, dispersion agent, coupling agent and antioxidant, EVA, nanometer ATO dispersion liquid, dispersion agent, coupling agent and antioxidant The mass ratio between 80%~90%, 1%~3%, 5%~10%, 3%~5% and 4%~5%, its preparation steps are:

[0019] (1) be equipped with following raw material by weight ratio: EVA85%, nanometer ATO dispersion liquid 1%, dispersant 5%, coupling agent 4%, antioxidant 5%;

[0020]

[0021] (2) Stir EVA, nano-ATO dispersion liquid, dispersant, silane coupling agent, and antioxidant until uniformly mixed;

[0022] (3) The above-mentioned products are extruded by a single-screw extruder and cast into a film, and the required EVA film is obtained after cooling and setting.

[0023] Wherein, the VA content of the EVA is 28%-33%, and the melt index of the EVA is less than or equal to 5.0g / 10min.

[0024] Wherein, the dispersant is EVA w...

Embodiment 2

[0029] Embodiment 2: A kind of preparation method of infrared cut-off EVA film, comprise EVA, nanometer ATO dispersion liquid, dispersion agent, coupling agent and antioxidant, EVA, nanometer ATO dispersion liquid, dispersion agent, coupling agent and antioxidant The mass ratio between 80%~90%, 1%~3%, 5%~10%, 3%~5% and 4%~5%, its preparation steps are:

[0030] (1) be equipped with following raw material by weight ratio: EVA86%, nanometer ATO dispersion liquid 2%, dispersant 5%, coupling agent 3%, antioxidant 4%;

[0031]

[0032] (2) Stir EVA, nano-ATO dispersion liquid, dispersant, silane coupling agent, and antioxidant until uniformly mixed;

[0033] (3) The above-mentioned products are extruded by a single-screw extruder and cast into a film, and the required EVA film is obtained after cooling and setting.

[0034] Wherein, the VA content of the EVA is 28%-33%, and the melt index of the EVA is less than or equal to 5.0g / 10min.

[0035] Wherein, the dispersant is EVA w...

Embodiment 3

[0040] Embodiment 3: A kind of preparation method of infrared cut off EVA film, comprise EVA, nano-ATO dispersion liquid, dispersant, coupling agent and antioxidant, EVA, nano-ATO dispersion liquid, dispersant, coupling agent and antioxidant The mass ratio between 80%~90%, 1%~3%, 5%~10%, 3%~5% and 4%~5%, its preparation steps are:

[0041] (1) be equipped with following raw material by weight ratio: EVA84.5%, nano-ATO dispersion liquid 3.5%, dispersant 5%, coupling agent 3%, antioxidant 4%;

[0042]

[0043] (2) Stir EVA, nano-ATO dispersion liquid, dispersant, silane coupling agent, and antioxidant until uniformly mixed;

[0044] (3) The above-mentioned products are extruded by a single-screw extruder and cast into a film, and the required EVA film is obtained after cooling and setting.

[0045] Wherein, the VA content of the EVA is 28%-33%, and the melt index of the EVA is less than or equal to 5.0g / 10min.

[0046] Wherein, the dispersant is EVA wax.

[0047] Wherein, ...

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Abstract

The invention discloses a preparation method of an infrared blocking EVA film. The infrared blocking EVA film is prepared from EVA, nano ATO dispersion liquid, a dispersing agent, a coupling agent andan antioxidant, the preparation method comprises the following steps: selecting the EVA, the nano ATO dispersion liquid, the dispersing agent, the coupling agent and the antioxidant according to a mass ratio of 85%:1%:5%:4%:5%, stirring the EVA, the nano ATO dispersion liquid, the dispersing agent, the silane coupling agent and the antioxidant until the materials are uniformly mixed; extruding the mixed product by adopting a single-screw extruder and casting to form a film; and cooling and shaping to obtain the required EVA film. Beneficial effects are as follows: the nano ATO component is added into the formula components of the EVA film, so that the prepared EVA film has a good infrared ray blocking function, and glass prepared from the EVA film is high in visible light transmittance and near-infrared blocking rate, can effectively isolate solar heat radiation and has a very good energy-saving effect.

Description

technical field [0001] The invention discloses a preparation method of an infrared-blocking EVA film, which belongs to the technical field of the EVA film. Background technique [0002] Laminated glass is a composite glass formed by bonding two pieces of glass together with an interlayer film. With the wide application of laminated glass, the demand for film as an interlayer film material is increasing, and the required functions are also becoming diversified. At present The most important applications are PVB and EVA films. EVA films are films made of EVA (ie, ethylene-vinyl acetate copolymer) as the main material; [0003] With the multi-functional development of laminated glass, in order to improve the thermal insulation performance of buildings without affecting the lighting and ventilation effects of buildings, it is required that glass block as much near-infrared light as possible while allowing Glass has a high visible light transmittance. The existing EVA film tends...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/10C09J123/08C09J11/04C09J11/06
CPCC08K2003/2231C08L2205/025C09J11/04C09J11/06C09J123/0853C09J7/10C09J7/30C08L23/0853C08K13/02C08K3/2279C08K3/22C08K5/1345C08K5/544
Inventor 孙仕兵顾孔胜
Owner SHENZHEN GAOREN ELECTRONICS NEW MATERIAL