Strawberry-shaped super-hydrophobic composite microsphere and application thereof

A composite microsphere and super-hydrophobic technology, which is applied in the direction of microsphere preparation, microcapsule preparation, coating, etc., can solve the problems of limited use and poor durability, and achieve improved binding force, good durability, and strong durability Effect

Inactive Publication Date: 2017-01-11
天津傲卓菲科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the disadvantages of poor durability and limited

Method used

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  • Strawberry-shaped super-hydrophobic composite microsphere and application thereof
  • Strawberry-shaped super-hydrophobic composite microsphere and application thereof
  • Strawberry-shaped super-hydrophobic composite microsphere and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example one:

[0029] (1) Preparation of strawberry-like superhydrophobic composite microspheres

[0030] Put 1g linear amino polystyrene microspheres (500nm) into the reactor, add 100mL (78.93g) ethanol, stir until the amino polystyrene microspheres are evenly dispersed, add 20g ethyl orthosilicate (TEOS) and 20g successively Distilled water into the reactor and reacted at room temperature for 24 hours to obtain a strawberry-like composite microsphere dispersion. The product was washed 3 times with ethanol and dried under vacuum to obtain strawberry-like PS / SiO 2 Composite microsphere powder. Take 1g strawberry-like PS / SiO 2 The composite microsphere powder was added to the reactor, and then 100mL (78.93g) of dispersion ethanol was added. After the temperature of the system reached 80℃, 300μL (0.42g) of perfluorooctyltrimethoxysilane was added for modification reaction for 12h, and centrifuged Then the strawberry-like superhydrophobic composite microspheres are obtained.

...

Example Embodiment

[0037] Embodiment two:

[0038] (1) Preparation of strawberry-like superhydrophobic composite microspheres

[0039] Put 1g of amino polystyrene microspheres (600nm) with a degree of crosslinking of 30% into the reactor, add 100mL (78.93g) of ethanol, stir until the amino polystyrene microspheres are evenly dispersed, add 20g of ethyl orthosilicate in turn Ester (TEOS) and 20g of distilled water were put into the reactor and reacted at room temperature for 24 hours to obtain a strawberry-like composite microsphere dispersion. The product was washed 3 times with ethanol and dried under vacuum to obtain a strawberry-like PS@SiO 2 Composite microsphere powder. Take 1g strawberry-shaped PS@SiO 2 The composite microsphere powder was added to the reactor, and then 100mL (78.93g) of dispersion ethanol was added. After the temperature of the system reached 80℃, 300μL (0.46g) of perfluorodecyltrimethoxysilane was added for the modification reaction for 10h, centrifuged Then obtain strawberr...

Example Embodiment

[0045] Embodiment three:

[0046] (1) Preparation of strawberry-like superhydrophobic composite microspheres

[0047] Put 1g of amino polystyrene microspheres (500nm) with a degree of crosslinking of 40% into the reactor, add 100mL (78.93g) of ethanol, stir until the amino polystyrene microspheres are evenly dispersed, and then add 20g of ethyl orthosilicate Ester (TEOS) and 20g of distilled water were put into the reactor and reacted at room temperature for 24 hours to obtain a strawberry-like composite microsphere dispersion. The product was washed 3 times with ethanol and dried under vacuum to obtain a strawberry-like PS / SiO 2 Composite microsphere powder. Take 1g strawberry-shaped PS@SiO 2 The composite microsphere powder was added to the reactor, and then 100 mL (78.93 g) of the dispersion ethanol was added. After the temperature of the system reached 80° C., 300 μL (0.27 g) of hexadecyltrimethoxysilane was added for the modification reaction for 12 hours. Obtain strawberry-l...

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Abstract

The invention relates to a strawberry-shaped super-hydrophobic composite microsphere and application thereof. The microsphere is prepared through the following steps that (1) an amino polystyrene microsphere, ethyl alcohol, ethyl orthosilicate and distilled water are added into a reactor, and take a reaction for 24h at room temperature; the product is washed with ethyl alcohol; after vacuum drying is performed, a strawberry-shaped composite microsphere is obtained; (2) the strawberry-shaped composite microsphere, a solvent and a silane coupling agent are added into the reactor; the reaction is performed for 5 to 15h under the condition of 25 DEG C to 100 DEG C; the product is centrifuged to obtain the strawberry-shaped super-hydrophobic composite microsphere. The strawberry-shaped super-hydrophobic composite microsphere and epoxy resin are matched to be used as a super-hydrophobic coating; the excellent and stable super-hydrophobic performance is realized; muddy water is splashed on the prepared super-hydrophobic surface; the super-hydrophobic surface cannot be polluted by the muddy water, so that the self cleaning function of the surface is realized.

Description

technical field [0001] The invention relates to the technical field of superhydrophobic coating materials, in particular to the preparation of superhydrophobic composite nano-microspheres and the application of constructing wear-resistant superhydrophobic coatings. Background technique [0002] When the contact angle of the surface of the material to water is greater than 150° and the rolling angle is less than 10°, we call the material superhydrophobic. Since the 1950s, foreign experts and scholars began to study super-hydrophobic coatings. Until 1997, German scientist Barthlott [W.Barthlott, et al. Planta, 1997, 202: 1.] and others confirmed that the natural super-hydrophobic phenomenon is It is jointly determined by micron-sized papillae and low surface energy wax crystals. In 2002, Jiang Lei et al [L. Jiang, etal. Adv. Mater., 2002, 14, 1857.] believed that the nanostructures on the micro-mastoids also play an important role in the super-hydrophobic properties of the ma...

Claims

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Application Information

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IPC IPC(8): B01J13/06C09D163/00C09D7/12
CPCB01J13/06C08L2205/03C09D7/65C09D7/70C09D163/00C08L25/06C08L77/00C08K9/06C08K3/36
Inventor 张旭顾有才王小梅
Owner 天津傲卓菲科技有限公司
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