Low-precipitation PET film applied to dimming glass and preparation process thereof

A light-adjustable glass and film technology, applied in the field of low precipitation PET film and its preparation process, can solve the problems of adding restrictions, reducing production efficiency, and increasing the haze of PET film, achieving molecular weight concentration, reducing reaction temperature, adding and The effect of easy processing

Inactive Publication Date: 2019-07-19
深圳华硕新材料应用科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, phosphoric acid is easy to react with antimony catalyst and toner cobalt acetate to produce precipitation and gel-like substances, and these precipitation and gel-like substances will also increase the haze of PET film
Therefore, in order to avoid precipitation and gel-like substances, when phosphoric acid, phosphorous acid and their esters are used as stabilizers, there are strict restrictions on the addition of catalysts, toners and other additives in the traditional preparation process
These addition restrictions include addition location, addition time, addition temperature, etc., but all reduce the preparation efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A low-precipitation PET film applied to dimming glass. The raw materials and parts by weight are: 93 parts of PET chips, 6 parts of stabilizer, and 1 part of other additives. The stabilizer is liquid modified triethyl phosphonoacetate, and the liquid modified triethyl phosphonoacetate has a molecular weight of 224.19±10%. Among them, other additives include additives such as catalysts and toners.

[0023] It is prepared by the following preparation process:

[0024] Step a: Weigh the raw materials according to the above weight parts, mix at 400RPM for 3 minutes, 1200RPM for 5 minutes, and 500RPM for 3 minutes to obtain a premix; Step b: Extrude the premix to form a film , to obtain PET film.

Embodiment 2

[0026] A low-precipitation PET film applied to dimming glass. The raw materials and parts by weight are: 94 parts of PET chips, 5 parts of stabilizer, and 1 part of other additives. The stabilizer is liquid modified triethyl phosphonoacetate, and the liquid modified triethyl phosphonoacetate has a molecular weight of 224.19±10%. A PET film was obtained through the same preparation process as in Example 1.

Embodiment 3

[0028] A low-precipitation PET film applied to dimming glass. The raw materials and parts by weight are: 95 parts of PET chips, 4 parts of stabilizer, and 1 part of other additives. The stabilizer is liquid modified triethyl phosphonoacetate, and the liquid modified triethyl phosphonoacetate has a molecular weight of 224.19±10%. A PET film was obtained through the same preparation process as in Example 1.

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PUM

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Abstract

The invention provides a low-precipitation PET film applied to dimming glass. The low-precipitation PET film applied to dimming glass is prepared from the following raw materials in parts by weight: 93-96 parts of PET, 3-6 parts of a stabilizer and 1 part of other additives. The stabilizer is triethyl phosphono acetate. The PET film prepared by the preparation process is small in haze change in electroplating and liquid crystal pouring processes, covering and coating of the surface of the PET film are not required, and the PET film can be directly used in a conducting film and liquid crystal pouring process of the dimming glass, so that the cost is saved greatly and the optical performance of the glass is improved greatly.

Description

technical field [0001] The invention relates to the technical field of PET film modification, in particular to a low-precipitation PET film applied to dimming glass and a preparation process thereof. Background technique [0002] At present, the base film of conductive film used for dimming glass is common PET base film. Because PET will precipitate oligomers (oligomer) on the surface when it is heated (such as electroplating a conductive layer or filling liquid crystal). Oligomers will increase the haze of the conductive film, and then become less transparent, resulting in the phenomenon of "fogging", which will affect the use effect of the dimming glass. [0003] At present, it is possible to cover the oligomers that may be precipitated by coating on an ordinary PET film, but the transparency of the coating liquid, temperature resistance, the size and leveling of the resin particles, the coating layer The uniformity of the glass will affect the transmission and dimming e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K5/5333C08J5/18
CPCC08J5/18C08J2367/02C08K5/5333
Inventor 余的军黄业勇
Owner 深圳华硕新材料应用科技有限公司
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