Waterproof staining-resisting nano composite coating as well as preparation and application methods thereof

A nano-composite and coating technology, applied in the field of nano-materials, can solve the problems that do not involve the coating's anti-fouling ability, and achieve the effects of large-scale production, reduced water absorption, and low production costs

Active Publication Date: 2013-12-11
SHANGHAI JIAO TONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defect and deficiency of this technology is that it mainly focuses on the research of the waterproof performance of the silicone emulsion type waterproofing agent, but does not involve the investigation of the stain resistance of the coating.

Method used

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  • Waterproof staining-resisting nano composite coating as well as preparation and application methods thereof
  • Waterproof staining-resisting nano composite coating as well as preparation and application methods thereof
  • Waterproof staining-resisting nano composite coating as well as preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present embodiment prepares the waterproof and stain-resistant nano-composite coating according to the following proportions, in terms of weight fraction: 25 parts of isooctyltriethoxysilane, 0.1 part of rutile nano-titanium dioxide particles, 2.5 parts of Span60, 2.5 parts of Tween80, deionized 69.9 parts of water.

[0032] The preparation process of this embodiment is as follows:

[0033] Add 2.5 parts by weight of Span60 and 2.5 parts by weight of Tween80 into 15 parts by weight of deionized water, heat to dissolve, and fully stir and mix evenly at a stirring speed of 1500 r / min to obtain an emulsifier dispersion.

[0034] At a stirring speed of 1500 r / min, add 25 parts by weight of alkylisooctyltriethoxysilane into the above-mentioned emulsifier dispersion, continue stirring after the addition, and mix well to obtain a uniform dispersion of silane.

[0035] At a stirring speed of 1500r / min, add the remaining deionized water to the above-mentioned silane homogen...

Embodiment 2

[0039] In this example, a waterproof and stain-resistant nanocomposite coating was prepared according to the following proportions, in terms of weight fractions: 40 parts of isooctyltriethoxysilane, 0.2 parts of nano-silica particles, 603 parts of Span, 803 parts of Tween, and 53.8 parts of deionized water.

[0040] The preparation process of this embodiment is as follows:

[0041] Add 3 parts by weight of Span60 and 3 parts by weight of Tween80 into 18 parts by weight of deionized water, heat to dissolve, and fully stir and mix evenly at a stirring speed of 1500 r / min to prepare an emulsifier dispersion.

[0042] At a stirring speed of 1500r / min, add 40 parts by weight of alkylisooctyltriethoxysilane into the above-mentioned emulsifier dispersion, continue stirring after the addition, and mix well to obtain a uniform dispersion of silane.

[0043] At a stirring speed of 1500r / min, add the remaining deionized water to the above-mentioned silane homogeneous dispersion, and afte...

Embodiment 3

[0047] In this example, a waterproof and stain-resistant nanocomposite coating was prepared according to the following proportions, in terms of weight fractions: 50 parts of isooctyltriethoxysilane, 0.2 parts of nano-zinc oxide particles, 604 parts of Span, 804 parts of Tween, and 41.8 parts of deionized water.

[0048] The preparation process of this embodiment is as follows:

[0049] Add 4 parts by weight of Span60 and 4 parts by weight of Tween80 into 24 parts by weight of deionized water, heat to dissolve, and fully stir and mix evenly at a stirring speed of 1500 r / min to prepare an emulsifier dispersion.

[0050] At a stirring speed of 1500r / min, add 50 parts by weight of alkylisooctyltriethoxysilane into the above emulsifier dispersion, continue stirring after the addition, and mix well to obtain a uniform dispersion of silane.

[0051] At a stirring speed of 1500r / min, add the remaining deionized water to the above-mentioned silane homogeneous dispersion, and after the ...

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Abstract

The invention discloses a waterproof staining-resisting nano composite coating belonging to the technical field of nano materials, as well as preparation and application methods of the coating. The coating consists of alkyl alkoxy silane, nano particles, an emulsifier and deionized water. The purposes of waterproofness and staining resistance are achieved by brushing the coating on the surface of stone or concrete and the like in a dry environment at the normal temperature. The coating is based on lotus effect, the alkyl alkoxy silane is taken as a substance with low surface energy, and the nano particles are taken as fillers of a rough surface structure of a waterproof agent coating.

Description

technical field [0001] The invention relates to a nano-composite coating in the technical field of nano-materials, in particular to a waterproof and stain-resistant nano-composite coating suitable for building exterior walls, road and bridge concrete, and various stone materials, and a preparation and application method thereof. Background technique [0002] Stone and concrete structures will be damaged by harmful substances such as water, acid gas, and salt during use, resulting in the risk of strength decline, cracking, and even collapse. Therefore, it is very necessary to protect stone and concrete structures. [0003] The most effective protective measure for stone and concrete structures is to use coatings to isolate the stone and concrete surfaces from water and other harmful substances. Substances that can be used as protective materials for stone and concrete include polyurethane, epoxy resin, acrylic resin, asphalt and so on. However, these traditional materials a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/12C09D5/16C04B41/49E04F13/04E01D21/00E01D101/40
Inventor 崔大祥蔡宁李耀霞焦金红张杰黄东曹海顺
Owner SHANGHAI JIAO TONG UNIV
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