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Ice-covering-resistant film and preparation method thereof

An anti-icing and film-attaching technology, which is applied in the field of composite materials, can solve the problems of increased difficulty in de-icing, poor wear resistance of anti-icing materials, and inability to optimize ice adhesion strength of films.

Pending Publication Date: 2019-01-01
LUOYANG INST OF CUTTING EDGE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can delay icing to a certain extent, the difficulty of deicing will increase greatly once it freezes. At the same time, the anti-icing performance of the material will gradually decrease during the use process, resulting in poor wear resistance of the anti-icing material. , In addition, the use of anti-icing materials is complex and inconvenient for maintenance, resulting in a short service life
Moreover, the existing scheme makes the shear strength of the material constant, so that the ice adhesion strength of the film cannot be optimized

Method used

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  • Ice-covering-resistant film and preparation method thereof

Examples

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Effect test

preparation example Construction

[0022] The preparation method of anti-icing film provided by the invention comprises the following steps:

[0023] Such as figure 1 The step S101 shows: the vinyl-terminated silicone oil, the hydrogen-terminated silicone oil, the castor catalyst and the liquid long-chain alkane are uniformly mixed and the air bubbles are removed to obtain a mixture. In this step, in parts by weight, mix 10-100 parts of vinyl-terminated silicone oil, 1-50 parts of hydrogen-terminated silicone oil, 0.05-0.15 parts of Castel catalyst, and 10-100 parts of liquid long-chain alkanes in a glass vessel Homogenize and remove air bubbles. Optionally, by weight, 50 parts of vinyl-terminated silicone oil, 25 parts of hydrogen-terminated silicone oil, 0.1 part of Castor catalyst, and 50 parts of liquid long-chain alkanes at a stirring rate of 1500 to 2500 rpm, Stir for 25-35 minutes to mix evenly, and remove air bubbles by vacuuming. Among them, the change of the proportion of vinyl-terminated silicone o...

Embodiment 1

[0030] In parts by weight, weigh 10 parts of vinyl-terminated silicone oil, 1 part of hydrogen-terminated silicone oil, 0.05 parts of castor catalyst, and 10 parts of liquid paraffin, and add them to glassware, stir vigorously at 2000rpm for 30 minutes, and then vacuum to remove air Bubble. Then it was poured into a mold and cured at 70° C. for 10 hours to obtain a film. Soak the film in D40 solvent for 30 minutes, remove the long-chain alkanes, and blow dry to obtain a film with a porous structure, then soak the film with a porous structure in perfluoropolyether for 30 minutes, remove the excess filling liquid after taking it out, Blow dry to obtain an anti-icing film with a thickness of 2mm.

[0031] After testing, the ice adhesion strength of the anti-icing film is 30kPa. After 100 icing / deicing cycles, the ice adhesion strength of the anti-icing film decreased by 19%.

Embodiment 2

[0033]In parts by weight, weigh 100 parts of vinyl-terminated silicone oil, 50 parts of hydrogen-terminated silicone oil, 0.15 parts of castor catalyst, and 100 parts of liquid paraffin, and add them to glassware, stir vigorously at 2000rpm for 30 minutes, and then vacuum to remove air Bubble. Then it was poured into a mold and cured at 70° C. for 10 hours to obtain a film. Soak the film in D40 solvent for 30 minutes, remove long-chain alkanes, and blow dry to obtain a film with a porous structure, then soak the film with a porous structure in F-550S for 30 minutes, remove the excess filling liquid after taking it out, and blow it Dry to obtain an anti-icing film with a thickness of 4mm.

[0034] After testing, the ice adhesion strength of the anti-icing film is 40kPa. After 100 icing / deicing cycles, the ice adhesion strength of this anti-icing film decreased by 20%.

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Abstract

The invention provides an ice-covering-resistant film and a preparation method thereof. The preparation method comprises: uniformly mixing vinyl-terminated silicone oil, hydrogen-terminated silicone oil, a Karstedt catalyst and a liquid-state long-chain alkane, and curing to obtain a film; soaking the film in an organic solvent to obtain a film with a porous structure; and soaking the film with the porous structure in a filling liquid to obtain the ice-covering-resistant film. According to the present invention, the shear strength, the ice adhesion strength and the service life of the ice-covering-resistant film are improved by controlling the types and the ratio of the raw materials; the prepared ice-covering-resistant film has advantages of suitable shear strength, low ice adhesion strength and long service life, belongs to the active anti-icing system, can be directly attached to the surfaces of instruments and other objects requiring ice-covering resistance, has significant ice-covering resistance, and further has characteristics of simple use, simple operation and convenient maintenance at the late stage.

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 is a very common natural phenomenon, especially in winter in northern regions, where ice and snow are continuously attached and accumulated on the surface of roads, transmission lines, railway tracks, etc. In severe cases, it will cause serious icing of roads and collapse of transmission line towers , Railway transportation is blocked, etc., not only bring great inconvenience to people's production and life, but even threaten people's life safety. Therefore, the research on anti-icing materials is of great significance. [0003] At present, extensive research has been carried out in the field of anti-icing materials at home and abroad, and most of the existing schemes achieve the purpose of anti-icing by increasing the hydrophobicity of materials. Although it can delay icing to a certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08L91/06C08J9/26
CPCC08J5/18C08J9/26C08J2383/07C08J2483/05C08J2491/06C08L83/04C08L2203/16C08L2205/025C08L2205/03C08L2205/05C08L91/06
Inventor 不公告发明人
Owner LUOYANG INST OF CUTTING EDGE TECH
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