Method for preparing multi-stage hierarchical structure super-hydrophobic material

A hierarchical structure and super-hydrophobic technology, which is applied in chemical instruments and methods, other chemical processes, silicon oxide, etc., can solve the problems that cannot realize the characteristics of super-hydrophobic performance, and achieve the effect of excellent super-hydrophobic performance

Active Publication Date: 2013-09-11
SHENZHEN DECHENGDA PHOTOELECTRIC MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem that the existing hierarchical superhydrophobic materials only stay at the level of the micron-nano two-level structure and cannot realize the characteristics of the superhydrophobic performance caused by the multi-scale effect, and provides a multi-level classification Preparation method of structural superhydrophobic material

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  • Method for preparing multi-stage hierarchical structure super-hydrophobic material
  • Method for preparing multi-stage hierarchical structure super-hydrophobic material
  • Method for preparing multi-stage hierarchical structure super-hydrophobic material

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specific Embodiment approach 1

[0022] Specific embodiment one: the preparation method of a kind of multi-level hierarchical structure superhydrophobic material of this embodiment is carried out according to the following steps:

[0023] 1. Preparation of polystyrene nanoparticle sol solution: Mix deionized water and styrene in a container loaded with polytetrafluoroethylene stirring paddles at a stirring speed of 280rpm to 320rpm, and continue to mix at a stirring speed of 280rpm to 320rpm. Add α-methyl methacrylate at 320rpm, reflux at a temperature of 40-60°C for 8min-12min, then add K 2 S 2 o 8 , constant temperature reaction at 75~85°C for 1.5h~2.5h to obtain polystyrene nanoparticle sol solution; wherein the volume ratio of deionized water and styrene is (4~6):1, and the α - the volume ratio of methyl methacrylate and styrene is (4~6): 100, the K 2 S 2 o 8 The ratio of the mass of styrene to the volume of styrene is (0.4~0.6) g: 100mL;

[0024]2. Preparation of polystyrene mesoporous silica nanop...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step two, cetyltrimethylammonium bromide solution is added at a rate of 2 mL / min. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the particle diameter of the polystyrene mesoporous silica nanoparticle precursor of the core-shell structure obtained in step two described in step three is 200nm . Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a method for preparing a multi-stage hierarchical structure super-hydrophobic material, relates to a method for preparing a hierarchical structure super-hydrophobic material, and aims at solving the problems that the existing hierarchical structure super-hydrophobic material is just remained at the level of a micron-nanometer two-stage structure, and development of the characteristics of the super-hydrophobic performance caused by the multi-scale effect cannot be achieved. The method comprises the steps of: 1, preparing polystyrene nano particle sol solution; 2, preparing a; 3, preparing a sol emulsion of the precursor which is obtained in the step 2; 4, preparing sol crystal microspheres; 5, preparing a multi-stage hierarchical structure material; 6, performing the surface hydroxylation treatment of the multi-stage hierarchical structure material; 7, preparing the super-hydrophobic material. By adopting the preparation method, preparation of a micron-submicron-nanometer hierarchical structure material is achieved; the obtained material has excellent super-hydrophobic performance; the defect that the development of characteristics and functions of the multi-scale effect cannot be achieved is compensated; the method can be used for preparing the multi-stage hierarchical structure super-hydrophobic material.

Description

technical field [0001] The invention relates to a preparation method of a hierarchical structure superhydrophobic material. Background technique [0002] The multi-scale effect caused by the synergistic effect of micro, nano and other structures in hierarchical structure materials is the intrinsic nature of forming new materials. Most of the realization of apparent properties and functions must go through a self-organization / synergy process of multi-scale hierarchical order from small to large. Therefore, the use of hierarchical structure materials for the synthesis of superhydrophobic materials has become a hot spot in scientific research. Superhydrophobic materials It generally refers to the surface with a contact angle of more than 150° and a sliding angle of less than 5° with water. It has great application prospects in daily life and material science. The hierarchical structure of micro- and nano-interactions is the root of superhydrophobicity. reason. The realization...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/113C03C17/23C09K3/18
Inventor 孙立国吕莉丽卜志鹏赵冬梅汪成张艳红
Owner SHENZHEN DECHENGDA PHOTOELECTRIC MATERIAL CO LTD
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