A lignin-based superhydrophobic coating and preparation method thereof

A super-hydrophobic coating, lignin-based technology, applied in the field of lignin-based super-hydrophobic coating and its preparation, to achieve good use value and application prospects, excellent super-hydrophobic performance, and low cost effects

Active Publication Date: 2022-05-24
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there have been no relevant reports on effectively improving the resistance of lignin to organic solvents in the prior art.

Method used

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  • A lignin-based superhydrophobic coating and preparation method thereof
  • A lignin-based superhydrophobic coating and preparation method thereof
  • A lignin-based superhydrophobic coating and preparation method thereof

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Embodiment 1

[0042] A lignin-based superhydrophobic coating, comprising the following raw material components in parts by mass:

[0043]

[0044] In this embodiment, the epoxy resin and curing agent are Shenliling SK-103 epoxy super glue produced by Hunan Shenliling Adhesive Manufacturing Co., Ltd., wherein the Shenliling SK-103 epoxy super glue is composed of components A and B Component composition, corresponding to epoxy resin and curing agent respectively.

[0045] In the present invention, epoxy resins capable of fixing low surface energy lignin micro-nanospheres on the base material can be used for the preparation of the superhydrophobic coating of the present invention, such as glycidyl ether epoxy resin, glycidyl ester ring Any one of oxygen resin, glycidylamine epoxy resin, linear aliphatic epoxy resin, and alicyclic epoxy resin can be used as the epoxy resin for preparing the superhydrophobic coating in the present invention, It is not limited to the Shenli Ling SK-103 epoxy ...

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Abstract

The invention discloses a lignin-based superhydrophobic coating and a preparation method thereof. The lignin-based superhydrophobic coating comprises the following raw material components in parts by mass: 2 to 4 parts of covalently crosslinked lignin micro-nano ball, 2-3 parts of trimethoxy (1H,1H,2H,2H-tridecafluoro-n-octyl) silane, 1-2 parts of epoxy resin, 1-2 parts of curing agent. The preparation method comprises: preparing covalently cross-linked lignin micronanosphere suspension, preparing low surface energy lignin micronanosphere suspension, preparing superhydrophobic adhesive prefabricated solution and coating film. The lignin-based superhydrophobic coating of the present invention has the advantages of low cost, environmental protection, and excellent superhydrophobic performance. It is a new type of superhydrophobic material with good use value and application prospect. It has the advantages of mildness and low cost, conforms to the concept of green chemistry, is suitable for large-scale preparation, and is convenient for industrial application.

Description

technical field [0001] The invention relates to a lignin-based superhydrophobic coating and a preparation method thereof. Background technique [0002] In production and life, the wettability of the material surface has an important influence on its processing and utilization. Superhydrophobic coatings have become a hot research topic because of their self-cleaning, anti-fog, anti-mildew, and oil-water separation functions. In recent years, due to the increasing requirements for the durability of superhydrophobic coatings, most researches tend to use inorganic nanomaterials as precursors to prepare superhydrophobic coatings. However, inorganic nanomaterials still have great challenges in cost control and environmental issues. Therefore, there is an urgent need to develop a low-cost, green and environmentally friendly bio-based nanomaterial to replace inorganic nanomaterials for the preparation of superhydrophobic coatings. [0003] At present, there are mainly reports on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D197/00C09D163/00C09D7/63C09D7/65
CPCC09D197/005C09D7/63C09D7/65C08L63/00C08K5/5419
Inventor 熊福全王航马铂乐卿彦吴义强
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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