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Anti-icing film and preparation method thereof

An anti-icing and thin-film technology, applied in chemical instruments and methods, other chemical processes, coatings, etc., can solve the problems of limited anti-icing and deicing capabilities, reduced anti-icing performance, and high ice adhesion strength. To achieve the effects of easy operation and promotion, increased service life, and simple preparation method

Pending Publication Date: 2019-03-05
LUOYANG INST OF CUTTING EDGE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, once the surface of this kind of material is covered with ice, it will lose its original super-hydrophobic properties, and the adhesion strength of ice is often relatively high, making deicing more difficult. It is relatively limited, and its wear resistance and mechanical properties are poor. After many times of use, the anti-icing performance will be greatly reduced, resulting in a short service life of the anti-icing coating. It needs to be painted frequently, which is time-consuming and laborious.

Method used

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  • Anti-icing film and preparation method thereof

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preparation example Construction

[0021] The preparation method of the anti-icing film provided by the present invention comprises the following steps:

[0022] like figure 1 Step S101 shown in step S101: after the low surface energy resin and the conductive filler are mixed uniformly, the crosslinking agent and the catalyst are added, and the mixture is uniformly mixed to prepare a mixture. In this step, by weight, 90-110 parts of low surface resin and 1-10 parts of conductive filler are stirred at a stirring speed of 400-600 r / min for 20-40 minutes, and after mixing uniformly, 10-30 parts are added The crosslinking agent and 1-5 parts of the catalyst are stirred for 7-15 minutes at a stirring speed of 700-900 r / min, and the mixture is uniformly mixed to obtain a mixture. In this step, sufficient stirring is required to ensure that the conductive filler is evenly dispersed in the low surface energy resin to form a conductive grid, thereby ensuring that the film has good conductivity. The low surface energy ...

Embodiment 1

[0029] In parts by weight, 100 parts of silicone rubber and 1 part of carbon nanotubes were stirred at a stirring speed of 400 r / min for 35 minutes, after mixing evenly, 10 parts of ethyl silicate and 1 part of dibutyltin dilaurate were added, The mixture was stirred for 10 minutes at a stirring speed of 800 r / min, and the mixture was uniformly mixed to obtain a mixture. The surface of the substrate is washed with ethanol, and after the surface of the substrate is dried and cleaned, the mixture is coated on the surface of the substrate using a film coater to form a coating on the surface of the substrate. The coating was cured in an oven at 90° C. for 30 min, and an anti-icing film was prepared after the coating was completely cured.

[0030] The contact angle of the anti-icing film measured by the pendant drop method using a contact angle tester is 110°, and the anti-icing film generates heat after electrification.

Embodiment 2

[0032] In parts by weight, 100 parts of fluorocarbon resin and 10 parts of graphite were stirred at a stirring speed of 600r / min for 20 minutes. After mixing evenly, 15 parts of butyl titanate and 3 parts of stannous octoate were added, and the mixture was stirred at 700r / min. The mixture was stirred for 15 minutes at a stirring speed of 100 Å, and the mixture was uniformly mixed to obtain a mixture. The surface of the substrate is washed with acetone, and after the surface of the substrate is dried and cleaned, the mixture is coated on the surface of the substrate using a film coater to form a coating on the surface of the substrate. The coating was cured in an oven at 100° C. for 35 min, and after the coating was completely cured, an anti-icing film was prepared.

[0033] The contact angle of the anti-icing film measured by the pendant drop method using a contact angle tester is 115°, and the anti-icing film generates heat after electrification.

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Abstract

The invention provides an anti-icing film and a preparation method thereof. The method includes the following steps: mixing a certain proportion of low surface energy resin, conductive fillers, a cross-linking agent and a catalyst, and coating and curing to prepare the anti-icing film with low surface energy and capable of powering on to generate heat. The content of each of components is controlled to ensure that the prepared anti-icing film not only has good electrical conductivity, but also can be powered on to generate the heat to de-ice, has certain mechanical strength, and enables the service life to be prolonged. Compared with general anti-icing materials only having an anti-icing or deicing function, the anti-icing film of the invention not only has low ice adhesion strength and good anti-icing effect, but also enables the deicing effect to be achieved by powering on and heating the film after the surface of the film ices up. The preparation method provided by the invention issimple, is easy to operate and popularize, is low in cost, and can be used for an air conditioning refrigeration shell, a power transmission line, fan blades, aviation equipment, and the like.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an anti-icing film and a preparation method thereof. Background technique [0002] Icing phenomena such as precipitation icing, sublimation icing, etc. are very common in nature, but the occurrence of icing in nature will bring great inconvenience to people's production and life, especially icing on transmission lines and railway tracks. The continuous adhesion and accumulation on road surfaces and air-conditioning equipment will lead to interruption of transmission lines, obstruction of railway transportation, traffic paralysis, equipment damage, etc., and even threaten people's lives, health and safety in severe cases. Therefore, it is of great economic value and social significance to carry out research on anti-icing materials. [0003] At present, the research on anti-icing materials at home and abroad mainly focuses on the research of hydrophobic materials and super-hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D127/12C09D127/18C09D5/24C09D7/63C09K3/18
CPCC08K3/04C08K5/10C08K5/5415C08K7/24C08K2201/001C08K2201/011C09D5/24C09D127/12C09D127/18C09D183/04C09K3/18
Inventor 不公告发明人
Owner LUOYANG INST OF CUTTING EDGE TECH
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