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White graphene composite resin hardening liquid and preparation method of PET hardened layer

A white graphene, composite resin technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of hardened layer not wearing, prone to cracks, electrical function failure, etc., to prevent agglomeration and avoid processing performance The effect of deteriorating and enhancing interface performance

Active Publication Date: 2018-06-29
GUANGDONG NANOLUTION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application aims to solve the phenomenon that the PET resin hardened layer currently on the market is not wear-resistant, easy to scratch, large warpage, and oligomers or small molecules are precipitated; it can also solve some problems such as the transmittance, Disadvantages of poor haze and cracks in the back-end process, which lead to the failure of the conductive function

Method used

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  • White graphene composite resin hardening liquid and preparation method of PET hardened layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] White Graphene Modification

[0045] Take 2-10 layers of 10g white graphene powder and add it to a round bottom flask, and add 100ml of distilled water to the round bottom flask, then ultrasonically disperse, add 0.2g sodium dodecyl sulfate to the round bottom flask, and stir at high speed ultrasonically , to obtain lipophilic modified white graphene; acrylic acid is subjected to vacuum distillation in advance;

[0046] After heating the above-mentioned lipophilic modified modified white graphene dispersion to 85°C, add 1g of ammonium persulfate initiator, stir for 10min, start to add 1g of acrylic acid dropwise, and finish dropping in 0.5h. After the dropwise addition, keep warm for 30 min until the reaction is complete. After the reaction is completed, adjust the pH value to 7 with ammonia water, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 3 times, and then wash with alcohol once, and vacuum dry and ...

Embodiment 2

[0052] White Graphene Modification

[0053] Take 10g of white graphene powder with 5-10 layers and add it to a round bottom flask, and add 100ml of ethanol to the round bottom flask, then ultrasonically disperse, add 0.5 parts of oleic acid to the round bottom flask, and ultrasonically stir at high speed to obtain lipophilic Modified white graphene: After heating the above-mentioned oleophilic modified white graphene dispersion to 85°C, add 1 part of ammonium persulfate initiator, stir for 10 minutes, start to add 1 g of methyl acrylate dropwise, and finish dropping in 0.5 hours. After the dropwise addition, keep warm for 45 minutes until the reaction is complete. After the reaction is completed, adjust the pH value to 7 with ammonia water, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 4 times, wash with alcohol once, and vacuum dry at 70°C, grind to obtain methyl acrylate-coated modified Modified white graphen...

Embodiment 3

[0059] White Graphene Modification

[0060] Take 2-5 layers of 15g white graphene powder and add it to a round bottom flask, and add 100ml distilled water to the round bottom flask, then ultrasonically disperse, add 0.5g oleylamine to the round bottom flask, and ultrasonically stir at high speed to obtain lipophilic Modified white graphene: After heating the above-mentioned oleophilic modified white graphene dispersion to 90°C, add 1g of initiator azobisisobutyronitrile, stir for 10min, start to add 1g of ethyl acrylate dropwise, and finish dropping in 1h . After the dropwise addition, keep warm for 30 min until the reaction is complete. After the reaction, use ammonia water to adjust the pH value to 7, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 3 times, wash with alcohol once, and vacuum dry at 80°C, grind to obtain ethyl acrylate coated modified white graphene;

[0061] Preparation of white graphene co...

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Abstract

The invention relates to the technical field of flexible electronic film materials, in particular to a white graphene composite resin hardening liquid and a preparation method of a PET hardened layer.The hardening liquid is prepared from, in parts by weight, 30-90 parts of polymer resin, 10-60 parts of a diluent, 0.01-10 parts of a photoinitiator and 0.1-15 parts of modified white graphene. The modified white graphene is polymer-coated and modified white graphene obtained after 2-10 layers of white graphene are sequentially subjected to surface lipophilic treatment and in-situ polymerizationmodification. The hardening liquid is applied to the surface of a PET substrate, ultraviolet curing is performed after thermal curing film formation, and the white graphene composite PET hardened layer is obtained. The problems that existing PET resin hardened layers are not wear-resistant, prone to scratching and large in warping and have oligomer or small molecule precipitation are solved; the defects that silicon dioxide resin PET hardened layers have poor transmittance and haze and have conducting function failure caused by cracking during postprocessing can be overcome.

Description

technical field [0001] The invention relates to the technical field of flexible electronic film materials, in particular to a preparation method of a white graphene composite resin hardening solution and a PET hardening layer. Background technique [0002] With the increasing demand for flexibility and thinning of electronic products, flexible, transparent, and high-strength plastic substrates have become the preferred materials for touch and display coating substrates. Compared with glass, PET material with high surface hardness, high toughness, and high light transmittance is already used by coating and coating manufacturers as the main optical film or explosion-proof film. But there are still many problems to be solved in the PET sold on the market at present. On the one hand, the PET optical film is easy to warp when it is resistant to high temperature, which affects the use, the mass production yield is low and the haze is high (compared to the glass light transmittanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/14C09D7/62C08J7/04C08L67/02
CPCC08J7/0427C08J2367/02C08J2433/00C08J2475/14C08K7/00C08K9/04C08K9/08C08K2003/385C09D133/00C09D175/14
Inventor 段曦东李晓丰赵涛楠
Owner GUANGDONG NANOLUTION SCI & TECH CO LTD
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