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Low-temperature curing method of perfluoropolyether antifouling film

A technology of perfluoropolyether and curing method, used in polyether coatings, antifouling/underwater coatings, and biocide-containing paints, etc.

Inactive Publication Date: 2019-04-26
苏州东杏表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the antifouling film is prepared by the spraying process, it generally needs to be baked at 150°C for 30 minutes to achieve the purpose of curing the film layer. This step becomes the largest energy consumption when the antifouling film is prepared by the spraying process.

Method used

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  • Low-temperature curing method of perfluoropolyether antifouling film

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Embodiment 1

[0016] The anti-fingerprint agent UD509 of Daikin Company of Japan was prepared into a coating solution with a concentration of 3‰ with 3M hydrofluoroether 7200, and different reaction additives were added, as shown in Table 1. The coating experiment was carried out with the above coating solution by spraying process, and cured at different curing temperatures for 0.5h, and the corresponding friction resistance was tested. The results are shown in Table 1.

[0017] For the evaluation of friction resistance, use 0000# steel wool to perform reciprocating mechanical friction on the glass surface, add 1kg / cm 2 The load, the friction frequency is 60 times / min, and the reciprocating friction is 4000 times. After rubbing 4000 times, if the water drop angle > 105°, the friction resistance level is excellent, represented by ◎; if the water drop angle is 101-105°, the friction resistance level is average, represented by ○; if the water drop angle is <100°, then The grade of friction re...

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Abstract

The invention discloses a low-temperature curing method for a perfluoropolyether antifouling film. According to the low-temperature curing method for the perfluoropolyether antifouling film, an auxiliary agent for promoting a condensation reaction of a perfluoropolyether antifouling main agent and a glass surface is added to spray coating liquid, after the coating liquid is uniformly sprayed on the glass surface by a spraying process, the purpose of curing can be achieved by baking at lower temperature to reduce the cost of preparing the perfluoropolyether antifouling film by the spraying process. Therefore, the low-temperature curing method for the perfluoropolyether antifouling film is very good in practicality.

Description

technical field [0001] The invention belongs to the technical field of low-temperature curing of anti-fouling films, and relates to a low-temperature curing method of perfluoropolyether anti-fouling films, which is specifically represented by reducing the curing temperature of the anti-fouling films formed by wet coating processes. Background technique [0002] The perfluoropolyether polymer compound has a special structure, which can form an anti-fouling, wear-resistant and easy-to-clean nano-coating on the surface of the substrate, so as to keep the surface of the substrate clean and enhance its scratch resistance. At present, it is mainly used for mobile phone display glass and optical lens, etc. It can endow the glass substrate with excellent anti-fingerprint characteristics, and has become a standard configuration in related industries. [0003] At present, there are two preparation methods for the formation of perfluoropolyether antifouling films in industry: one is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D171/00C09D5/16C09D7/61C09D7/63
CPCC08K3/16C08K5/09C08K5/57C09D5/1662C09D5/1687C09D171/00
Inventor 许波连何丽蓉祁义军王兴钱红梅
Owner 苏州东杏表面技术有限公司
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