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Surface anti-icing material and preparation method thereof

An anti-icing and base material technology, applied in textiles and papermaking, fiber treatment, physical treatment, etc., can solve the problem of surface ice layer being difficult to remove, and achieve the effect of easy sliding, water freezing, mild conditions and low adhesion.

Active Publication Date: 2018-11-30
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the design with the idea of ​​delaying the freezing of surface water, it is mainly to introduce polymers that can inhibit ice nucleation and growth on the surface. Such surfaces can reduce the surface freezing temperature and delay the surface freezing process, but such surfaces Once frozen, the surface ice layer is difficult to remove

Method used

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  • Surface anti-icing material and preparation method thereof
  • Surface anti-icing material and preparation method thereof
  • Surface anti-icing material and preparation method thereof

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preparation example Construction

[0039] The invention provides a method for preparing a surface anti-icing material, comprising the following steps:

[0040] a) Radiation grafting maleic anhydride on the surface of the polymer solid phase base material to obtain the material of grafted maleic anhydride;

[0041] b) immersing the grafted maleic anhydride material obtained in step a) in a mixed solution of a metal salt and an organic ligand, and growing in situ to obtain a MOF grafted material;

[0042] c) contacting and adsorbing the MOF grafted material obtained in step b) with a solution of a hydrophilic polymer, and drying to obtain a surface anti-icing material.

[0043] see figure 1 , figure 1 The flow chart of the preparation of the surface anti-icing material provided by the embodiment of the present invention.

[0044] In the invention, firstly, maleic anhydride is radiated and grafted on the surface of the polymer solid phase base material to obtain the grafted maleic anhydride material. In the pr...

Embodiment 1

[0090] (1) Take 10g of non-woven material (PP), wash it with acetone and dry it, put it into a closed container to evacuate it, put it into a radiation source for irradiation, the irradiation temperature is 30°C, and the radiation dose rate is 3kGy / h, The radiation dose is 30kGy to obtain the irradiated base material; then add maleic anhydride to a three-necked flask connected with a stirring paddle, and heat it at 80°C to melt to obtain a reaction solution; then use a glass tube to feed the reaction Below the liquid level, nitrogen gas was introduced. After 15 minutes, the above-mentioned irradiated base material was added to the flask to be completely submerged in the above-mentioned reaction solution, and the reaction was stopped after 6 hours at 105 ° C. The solid product was filtered out, and the product was tested. After extracting, washing and drying, the grafted maleic anhydride material is obtained.

[0091] (2) the ferric chloride of 3 weight parts and the terephthal...

Embodiment 2

[0096] (1) Take 10g of ultra-high molecular weight polyethylene (UHMWPE), wash it with acetone and dry it, put it into a closed container to evacuate it, put it into a radiation source for irradiation, the irradiation temperature is 30°C, and the radiation dose rate is 0.5kGy / h, the radiation dose is 20kGy, to obtain the irradiated base material; then add maleic anhydride in the three-necked flask connected with the stirring paddle, and heat it to melt at 70°C to obtain the reaction solution; then use a glass tube Pass the reaction liquid below the liquid level, and pass nitrogen gas. After 15 minutes, add the above-mentioned irradiated base material into the flask to completely immerse in the above-mentioned reaction liquid, stop the reaction at 100°C for 7 hours, and filter out the solid product. The product is extracted, washed and dried to obtain the grafted maleic anhydride material.

[0097] (2) the ferric chloride of 3 weight parts and the terephthalic acid of 1 weight...

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Abstract

The invention provides a preparation method for a surface anti-icing material. The preparation method comprises the following steps: a) grafting maleic anhydride onto the surface of a polymer solid-phase substrate material by radiation so as to obtain a maleic anhydride grafted material; b) immersing the maleic anhydride grafted material obtained in the step a) into a mixed solution of metal saltand an organic ligand, and allowing the maleic anhydride grafted material to grow in situ so as to obtain a MOF grafted material; and c) subjecting the MOF grafted material obtained in the step b) tocontact adsorption with a hydrophilic polymer solution, and carrying out drying so as to obtain the surface anti-icing material. Compared with the prior art, the preparation method provided by the invention combines surface nucleation inhibiting molecules and water absorbing macromolecules with a superhydrophobic surface containing a micro-nano composite structure, so the surface anti-icing material prepared by using the preparation method provided by the invention has alternated hydrophilic / hydrophobic surface, wherein the hydrophobic parts of the surface enable water to easily slip down fromthe surface, while the hydrophilic parts of the surface can exert the effect of inhibiting water of the surface from icing to form a water lubricating layer; thus, the surface anti-icing material provided by the invention has the characteristics of low adhesion, easy slipping, water-icing inhibition and good stability.

Description

technical field [0001] The invention relates to the technical field of anti-icing materials, in particular to a surface anti-icing material and a preparation method thereof. Background technique [0002] Surface anti-icing technology is a worldwide problem, and it is also a research hotspot in recent years. With the in-depth understanding of the mechanism of surface icing, surface anti-icing technology continues to develop. Anti-icing methods such as mechanical deicing method, solution method and thermal method can effectively remove the surface ice layer, but these methods cannot fundamentally solve the problem, and need external energy to achieve. Therefore, designing and preparing surface anti-icing materials has become an ideal way to solve the problem of surface icing. [0003] The design of surface anti-icing materials is mainly based on reducing the adhesion of water / ice on the surface and delaying the freezing of surface water. For the design of surface anti-icing...

Claims

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Application Information

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IPC IPC(8): C08J7/18C08J7/12C08L23/06C08L79/08D06M10/10D06M10/06D06M10/08
CPCC08J7/12C08J7/18C08J2323/06C08J2379/08D06M10/06D06M10/08D06M10/10
Inventor 张依帆尹园柳美华沃伊切赫 斯坦尼斯瓦夫·古托夫斯基邓鹏飏魏巍郑春柏
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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