A kind of anti-icing coating that is easy to deicing at low temperature and preparation method thereof
An anti-icing and de-icing technology, applied in the direction of coating, etc., can solve the problems of excessive PTFE wax proportion, difficult removal of anti-icing coating, low friction coefficient, etc., to achieve low friction coefficient and easy removal of icing , Excellent low temperature flexibility
Active Publication Date: 2022-01-04
杭州万观科技有限公司
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] In order to overcome the defect that the anti-icing coating in the prior art is difficult to remove due to freezing at low temperature, the present invention mainly solves the problem of deicing from the perspective of stress difference between layers while paying attention to hydrophobicity
Among the many types of silicone oils, through testing, double-ended vinyl silicone oils with obvious anti-icing effects were selected, which cooperate with silicone modified paraffin wax to provide a lubricating surface in low temperature environment; at the same time, polytetrafluoroethylene wax Processing to the nanometer level, in addition to solving the problem of PTFE wax sinking due to the high specific gravity of the film during construction, at the same time, the nanometer-level PTFE wax is distributed on the surface of the coating in a hemispherical shape, so that the entire coating has an extremely low coefficient of friction
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
preparation example 1
[0035]Put 58 parts of chlorotrifluoroethylene, 29 parts of cyclohexyl vinyl ether, 5 parts of hydroxybutyl vinyl ether, 15 parts of polymethylvinyl siloxane, and 2 parts of dodecenoic acid into 200 parts of solvent Add 2.5 parts of potassium persulfate to butyl acetate, raise the temperature to 70°C, and react for 12 hours until the pressure of the kettle no longer drops, then lower the temperature and pressure to normal temperature and pressure to obtain a silicon-fluorine composite resin 1 with a weight average molecular weight of 47,000.
preparation example 2
[0037] Other conditions and steps are the same as those in Preparation 1, except that 58 parts of chlorotrifluoroethylene are replaced by 63 parts of hexafluorobutyl acrylate, and dodecenoic acid is replaced by hexadecenoic acid of equal mass to finally obtain silicon-fluorine composite resin 2, Its weight average molecular weight is 52000.
preparation example 3
[0039] After mixing 1 part of epoxy-terminated methyl silicone oil and 6 parts of ethanol, add 15 parts of solid paraffin, stir at 70-90°C, and evaporate the ethanol to obtain silicone modified paraffin wax 1.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to an anti-icing coating which is easy to deicing at low temperature. Grade polytetrafluoroethylene, 3-8 parts of castor oil, 6-10 parts of double-ended vinyl silicone oil, 6-10 parts of silicone modified paraffin, 10-17 parts of the first diluent; B component includes the following parts by weight Raw materials: 7-10 parts of curing agent, 30-60 parts of second thinner. The present invention introduces castor oil, double-ended vinyl silicone oil and silicone-modified paraffin into the silicon-fluorine composite resin, and each component has good compatibility with each other, and there is a synergistic effect, and the hard ice-coated layer and the The stress difference between the flexible coatings is very large, allowing easy removal of icing at low temperatures. Nanoscale tetrafluoroethylene wax is used to prepare a certain slurry, which is distributed on the surface of the coating in a hemispherical or microspherical shape, so that the entire coating has an extremely low friction coefficient, which can help the anti-icing effect at low temperatures.
Description
technical field [0001] The invention belongs to the technical field of anti-icing coatings, and in particular relates to an anti-icing coating which is easy to deicing at low temperature and a preparation method thereof. Background technique [0002] Most of the existing anti-icing coating technology is to increase the water contact angle of the coating as the cutting angle and make it super-hydrophobic to prevent ice coverage. For example, the patent CN105001723A, but the actual use experience shows that simply increasing the water contact angle cannot prevent the ice from covering as people imagined. The ice-water mixture to the all-solid ice has completely lost the super-repellent and non-stick effect on liquid water, and the ice on the coating becomes thicker and harder to remove. [0003] There is existing technology to modify the coating by fluorinated oligosilsesquioxane to improve the hydrophobicity of the coating, and the microstructure of the patterned coating sur...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D7/65
CPCC09D151/08C09D7/65C08L2205/035C08L83/04C08L91/06C08L91/00C08L27/18
Inventor 赵玮许建华
Owner 杭州万观科技有限公司