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Highly-hydrophobic sandstone surface modifying agent

A surface modifier and high hydrophobicity technology, applied in the field of building materials, can solve problems such as inconvenience in use, and achieve the effect of improving application performance and workability

Inactive Publication Date: 2019-04-05
上海十方生态园林股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the sandstone itself is used, if it wants to breathe, it will be permeable, which is inconvenient to use. Therefore, a modifier is needed to modify the sandstone.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Provide a highly hydrophobic gravel surface modifier, including acrylic resin, fluorosilicone resin, silicone wax, kaolin, titanium dioxide, xenon fluoride, alkali metal phosphate, N,N-dimethylformamide, Water, the content of each component of the highly hydrophobic sandstone surface modifier is: in parts by weight, 23 parts of acrylic resin, 25 parts of fluorosilicone resin, 35 parts of organic silicon wax, 7 parts of kaolin, titanium dioxide 10 parts, xenon fluoride 3 parts, alkali metal phosphate 2 parts, N,N-dimethylformamide 85 parts, water 90 parts.

[0013] Wherein, the silicone wax is octadecyl polydimethylsiloxane. The xenon fluoride is xenon tetrafluoride. The alkali metal phosphate is sodium hexametaphosphate.

Embodiment 2

[0015] Provide a highly hydrophobic gravel surface modifier, including acrylic resin, fluorosilicone resin, silicone wax, kaolin, titanium dioxide, xenon fluoride, alkali metal phosphate, N,N-dimethylformamide, Water, the content of each component of the highly hydrophobic sandstone surface modifier is: in parts by weight, 27 parts of acrylic resin, 18 parts of fluorosilicone resin, 42 parts of organic silicon wax, 4 parts of kaolin, titanium dioxide 14 parts, xenon fluoride 1 part, alkali metal phosphate 5 parts, N,N-dimethylformamide 70 parts, water 100 parts.

[0016] Wherein, the silicone wax is behenyl polydimethylsiloxane. The xenon fluoride is xenon hexafluoride. The alkali metal phosphate is sodium tripolyphosphate.

Embodiment 3

[0018] Provide a highly hydrophobic gravel surface modifier, including acrylic resin, fluorosilicone resin, silicone wax, kaolin, titanium dioxide, xenon fluoride, alkali metal phosphate, N,N-dimethylformamide, Water, the content of each component of the highly hydrophobic sandstone surface modifier is: in parts by weight, 25 parts of acrylic resin, 21 parts of fluorosilicone resin, 39 parts of organic silicon wax, 6 parts of kaolin, titanium dioxide 12 parts, xenon fluoride 2 parts, alkali metal phosphate 3 parts, N,N-dimethylformamide 78 parts, water 95 parts.

[0019] Wherein, the silicone wax is higher fatty alcohol modified silicone oil. The silicone wax is a mixture of octadecyl polydimethylsiloxane and behenyl polydimethylsiloxane. The xenon fluoride is xenon difluoride. The alkali metal phosphate is sodium pyrophosphate.

[0020] Hydrophobicity test was carried out on the gravel treated with the modifying agent described in Examples 1, 2 and 3. The result was: the c...

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Abstract

The invention discloses a highly-hydrophobic sandstone surface modifying agent which comprises acrylic resin, fluorosilicon resin, organic silicon wax, kaolin, titanium dioxide, xenon fluoride, alkalimetal phosphates, N, N-dimethyl formamide and water. By the aid of the mode, the surfaces of sandstone can be modified by the highly-hydrophobic sandstone surface modifying agent, application performance of sandstones is improved, so that the sandstones have ventilated and water-proof quality, and workability of the sandstones in building materials such as concrete is improved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a highly hydrophobic sandstone surface modifier. Background technique [0002] Sandstone refers to the loose mixture of sand grains and gravel. In geology, mineral or rock particles with a particle size of 0.074-2mm are called sand, and those with a particle size larger than 2mm are called gravel. Because of its good hardness and stable chemical properties, sand and gravel are often used as high-quality building materials and concrete raw materials and are widely used in housing, roads, highways, railways, engineering and other fields. When the sandstone itself is used, if it wants to be breathable, it will be permeable to water, which is inconvenient to use. Therefore, a modifier is needed to modify the sandstone. Contents of the invention [0003] The technical problem mainly solved by the invention is to provide a highly hydrophobic sandstone surface modifier with good app...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D133/00C09D183/08C09D7/61C04B20/02C04B14/02
CPCC04B20/023C08K2003/2241C08L2205/03C09D7/61C09D183/04C08L33/00C08L83/08C08K3/346C08K3/22C04B14/02
Inventor 王顺利葛俊
Owner 上海十方生态园林股份有限公司