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Intelligent active freezing-proof coating material and preparation method and application thereof

A coating material and anti-icing technology, applied in coatings, polyurea/polyurethane coatings, etc., to achieve the effects of reducing usage, benefiting environmental protection, and flexible construction

Inactive Publication Date: 2013-02-13
NANJING BOPING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this technology cannot be applied to low-speed motion or static substrates to achieve non-icing ability, and it is a non-intelligent anti-icing coating material

Method used

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  • Intelligent active freezing-proof coating material and preparation method and application thereof
  • Intelligent active freezing-proof coating material and preparation method and application thereof
  • Intelligent active freezing-proof coating material and preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0023] 1. Preparation of temperature-sensitive phase change materials

[0024] The temperature-sensitive phase change material is prepared by reacting α, ω-bishydroxy polysiloxane and alkoxy silicon, and the molecular formula is as follows:

[0025] where R 1 , R 2 , R 5 , R 6 is an alkoxy or aryloxy group containing 1-10 C atoms; R 3 , R 4 It is an alkyl, phenyl or cycloalkyl group containing 1-6 C atoms; the number of repeating units X and Y is 3-30; the number of repeating units Z of polysiloxane is 3-10.

[0026] 2. Preparation of high molecular weight polymers containing ureide groups

[0027] The synthesis of polymers containing ureide groups adopts the reaction of high molecular weight α, ω-bisaminopolysiloxane and diisocyanate to prepare high molecular weight polymers containing ureide groups. The molecular structure is as follows:

[0028]

[0029] where R 1 , R 6 It is a hydrogen group, an alkyl group with 1-6 carbon atoms, an aryl group, a cycloalkyl g...

Embodiment 1

[0034] (1) Preparation of temperature-sensitive phase change materials

[0035] Nitrogen was blown, the residual air in the 10L glass polymerization reactor was taken out, and 5mol α, ω-bishydroxy polydimethylsiloxane (M W1200) and 2.5 L of dichloromethane. Weigh 10 mol of hexadecyltrimethoxysilane and dissolve it in 2.5 L of dichloromethane and 12 mol of oxalic acid. Start the stirring device, and slowly add the alkyltrimethoxysilane mixture dropwise. After the dropwise addition, the temperature was raised to 50° C. to continue the reaction for 2 hours, and the excess solvent and small molecular impurities were removed by gradually raising the temperature. The obtained temperature-sensitive phase change material was washed several times with deionized water, dried in vacuum until constant weight, and set aside.

[0036] (2) Preparation of high molecular weight polymers containing ureide groups

[0037] Nitrogen was blown to take out the residual air in the 10L glass polym...

Embodiment 2

[0039] Nitrogen was blown, the residual air in the 10L glass polymerization reactor was taken out, and 5mol α, ω-bishydroxy polydimethylsiloxane (M W 1200) and 2.5 L of dichloromethane. Weigh 10 mol of octadecyltrimethoxysilane and dissolve it with 2.5 L of dichloromethane and 12 mol of oxalic acid. Start the stirring device, and slowly add the alkyltrimethoxysilane mixture dropwise. After the dropwise addition, the temperature was raised to 50° C. to continue the reaction for 2 hours, and the excess solvent and small molecular impurities were removed by gradually raising the temperature. The obtained temperature-sensitive phase change material was washed several times with deionized water, dried in vacuum until constant weight, and set aside.

[0040] Nitrogen was blown to take out the residual air in the 10L glass polymerization reactor, and poured into 2.5L of dichloromethane and 5mol fumaryl chloride mixed solution. Weigh 10mol α, ω-bisaminopolysiloxane (M W 25000) w...

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Abstract

The invention relates to an intelligent active freezing-proof coating material and a preparation method and application thereof. The material comprises the following formula: 10-60wt% of thermosensitive phase-change materials, 10-60wt% of heavy molecular weight polymer containing ureides groups and 20-80wt% of solvent. The preparation method is characterized in that the components are stirred and mixed to prepare freezing-proof coating material solution; after the solution is dried by evaporation, the freezing-proof coating material is formed; and the obtained freezing-proof coating material is attached to an objected to be treated by adopting a soaking mode, a manual brush painting mode or an electrostatic spraying mode. Compared with the prior art, the invention has the characteristics that the obtained freezing-proof coating material has long-term freezing-proof capability and favorable aging resistance, wearability and transparency, does not affect matrix color and the like.

Description

technical field [0001] The invention relates to a preparation method of an intelligent and active anti-icing coating material, which is sprayed on the surface of a substrate, and the surface of the substrate has long-term anti-icing ability. Especially suitable for aviation, ships, railways, electric power, petrochemical, pipeline, construction and other industries. Background technique [0002] The accumulation of ice on the substrate will create huge problems. If the highway is icy, it will make transportation very difficult. Ice on the cables will cause the wires to break due to overload and interrupt the power system. Ice on the wings of the aircraft will lead to accidents of aircraft crashes and fatalities. If the roof freezes too thickly, the house will collapse. Therefore, the preparation of anti-icing coating materials has received high attention. And the anti-icing coating material has a broad application market. [0003] At present, deicing (inhibiting icing)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/10C09D183/12C09D175/02C09D5/00
Inventor 胡益民汪洪陈晓东
Owner NANJING BOPING ELECTRONICS TECH CO LTD
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