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Polyurethane-based ionic liquid perfusion coating prefabricated liquid, preparation method thereof and ionic liquid perfusion coating

An ionic liquid and liquid infusion technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of cumbersome steps, expensive preparation of devices, uncleanness and environmental protection, etc., and achieve the effects of simple operation, broad market prospects and low price.

Active Publication Date: 2020-11-17
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the application provides a polyurethane-based ionic liquid perfusion coating prefabrication solution and its preparation method, and an ionic liquid perfusion coating, which can effectively solve the cumbersome steps of the existing ionic liquid perfusion super-slip coating due to difficulty in perfusion , Involving technical issues such as expensive preparation devices and unclean environmental protection

Method used

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  • Polyurethane-based ionic liquid perfusion coating prefabricated liquid, preparation method thereof and ionic liquid perfusion coating
  • Polyurethane-based ionic liquid perfusion coating prefabricated liquid, preparation method thereof and ionic liquid perfusion coating
  • Polyurethane-based ionic liquid perfusion coating prefabricated liquid, preparation method thereof and ionic liquid perfusion coating

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Embodiment 1

[0046] The embodiment of the present application provides the first ionic liquid perfusion coating, the method comprising:

[0047] 1. Weigh 0.05g of thermoplastic polyurethane TPU and 0.5g of 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF 6 ] was added to a 5mL reagent bottle;

[0048] 2. Then, gradually heat in the oil bath, stir at a speed of 300rpm, heat to 180°C and keep the temperature for 3 hours to completely dissolve the polyurethane TPU in the ionic liquid [BMIM][PF 6 ] to form a homogeneous polyurethane-based ionic liquid perfusion coating prefabricated solution, place the polyurethane-based ionic liquid perfused coating prefabricated solution on a glass plate, and use a scraper to quickly scrape out a 1mm thick solution layer. After standing for 30s, the polyurethane-based ionic liquid perfusion coating prefabricated liquid cooled naturally and phase separation occurred to form the ionic liquid perfusion coating.

Embodiment 2

[0050] The embodiment of the present application provides a second ionic liquid perfusion coating, the method comprising:

[0051] 1. Weigh 0.2g of polyurethane TPU and 1g of 1-octyl-3-methylimidazolium hexafluorophosphate [OMIM][PF 6 ], added to the reagent bottle of 5mL;

[0052] 2. Then, gradually heat in the oil bath, stir at a speed of 300rpm, heat to 180°C and keep the temperature for 3 hours to completely dissolve the polyurethane TPU in the ionic liquid [OMIM][PF 6 ] The polyurethane-based ionic liquid perfusion coating prefabricated solution formed in ], put the polyurethane-based ionic liquid perfused coating prefabricated solution on a glass plate, and use a scraper to quickly scrape out a 1mm thick solution layer. After standing for 30s, the polyurethane-based ionic liquid perfusion coating prefabricated liquid cooled naturally and phase separation occurred to form the ionic liquid perfusion coating.

Embodiment 3

[0054] The embodiment of the present application provides a third ionic liquid perfusion coating, the method comprising:

[0055] 1. Weigh 0.2g of thermoplastic polyurethane TPU and 1g of 1-decyl-3-methylimidazolium hexafluorophosphate [DMIM][PF 6 ] was added to a 5mL reagent bottle;

[0056] 2. Then, gradually heat in the oil bath, stir at a speed of 300rpm, heat to 200°C and keep the temperature for 2 hours to completely dissolve the polyurethane TPU in the ionic liquid [DMIM][PF 6 ] to form a homogeneous polyurethane-based ionic liquid perfusion coating prefabricated solution, place the polyurethane-based ionic liquid perfused coating prefabricated solution on a glass plate, and use a scraper to quickly scrape out a 1mm thick solution layer. After standing for 30s, the polyurethane-based ionic liquid perfusion coating prefabricated liquid cooled naturally and phase separation occurred to form the ionic liquid perfusion coating.

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Abstract

The invention belongs to the technical field of liquid perfusion ultra-smooth coatings, and particularly relates to a polyurethane-based ionic liquid perfusion coating prefabricated liquid, a preparation method thereof and an ionic liquid perfusion coating. The invention provides the polyurethane-based ionic liquid perfusion coating prefabricated liquid which comprises thermoplastic polyurethane and an ionic liquid, wherein the ionic liquid comprises an imidazole type ionic liquid or / and a tetrafluoroboric acid type ionic liquid. According to the prefabricated liquid, the preparation method thereof, and the ionic liquid perfusion coating, the technical problems of tedious steps, expensive preparation devices, uncleanness, environment pollution and the like caused by difficult perfusion ofan existing ionic liquid perfusion super-smooth coating can be effectively solved.

Description

technical field [0001] The application belongs to the technical field of liquid perfusion super-slip coating, and in particular relates to a polyurethane-based ionic liquid perfusion coating prefabricated liquid, a preparation method thereof, and an ionic liquid perfusion coating. Background technique [0002] Slippery Liquid-Infused Porous Surface (SLIPS) exhibits excellent sliding properties and liquid repellency at room temperature due to the presence of a molecular-scale liquid lubricating layer (perfusion liquid) on the surface. Anti-icing, anti-fouling, drag reduction, heat transfer and other fields. [0003] Ionic liquids, as salts that are liquid at or near room temperature and composed entirely of anions and cations, have been used as excellent Lubricants are used in the field of friction. At present, it has been reported that with different "hydrophilic" ionic liquids and hydrophilic and hydrophobic polymers, the surface of SLIPS is prepared to exhibit excellent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/20
CPCC09D175/04C09D7/20
Inventor 杨皓程王华莉梁泽辉卢嘉星赵书瑞
Owner SUN YAT SEN UNIV
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