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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 use in the current technology, and provides a strawberry-shaped composite microsphere

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

Embodiment 1

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

[0030] Put 1g of linear aminopolystyrene microspheres (500nm) into the reactor, add 100mL (78.93g) of ethanol, stir until the aminopolystyrene microspheres are evenly dispersed, then add 20g of tetraethyl orthosilicate (TEOS) and 20g of Put distilled water into the reactor and react at room temperature for 24 hours to obtain a strawberry-like composite microsphere dispersion. The product was washed with ethanol three times and vacuum-dried to obtain a strawberry-like PS / SiO 2 Composite microsphere powder. Take 1g strawberry-like PS / SiO 2 Add the composite microsphere powder into the reactor, and then add 100mL (78.93g) of dispersion ethanol. After the system temperature reaches 80°C, add 300μL (0.42g) of perfluorooctyltrimethoxysilane to modify the reaction for 12h, centrifuge Finally, strawberry-like superhydrophobic composite microspheres were obtained.

[0031] (2) Strawberry-like superhy...

Embodiment 2

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

[0039] Put 1 g of amino polystyrene microspheres (600 nm) with a cross-linking degree of 30% into the reactor, add 100 mL (78.93 g) of ethanol, stir until the amino polystyrene microspheres are uniformly dispersed, and then add 20 g of ethyl orthosilicate Ester (TEOS) and 20g of distilled water were put into the reactor, and reacted at room temperature for 24h to obtain a strawberry-like composite microsphere dispersion. The product was washed with ethanol three times, and after vacuum drying, the strawberry-like PS@SiO 2 Composite microsphere powder. Take 1g strawberry PS@SiO 2 Add the composite microsphere powder into the reactor, and then add 100mL (78.93g) of ethanol as the dispersion liquid. After the system temperature reaches 80°C, add 300μL (0.46g) of perfluorodecyltrimethoxysilane to modify the reaction for 10h, centrifuge Finally, strawberry-like superhydrophobic composite microsphe...

Embodiment 3

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

[0047] Put 1 g of amino polystyrene microspheres (500 nm) with a cross-linking degree of 40% into the reactor, add 100 mL (78.93 g) of ethanol, stir until the amino polystyrene microspheres are uniformly dispersed, and then add 20 g of ethyl orthosilicate Ester (TEOS) and 20 g 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 with ethanol three times, and after vacuum drying, a strawberry-like PS / SiO 2 Composite microsphere powder. Take 1g strawberry PS@SiO 2 Add the composite microsphere powder into the reactor, then add 100mL (78.93g) of ethanol as the dispersion, and add 300μL (0.27g) of hexadecyltrimethoxysilane to modify the reaction for 12h after the system temperature reaches 80°C. After centrifugation, strawberry-like superhydrophobic composite microspheres wer...

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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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