WO2020042415A1 - Matériau composite hydrophobe. procédé de préparation et son utilisation, et verre le contenant - Google Patents

Matériau composite hydrophobe. procédé de préparation et son utilisation, et verre le contenant Download PDF

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Publication number
WO2020042415A1
WO2020042415A1 PCT/CN2018/119542 CN2018119542W WO2020042415A1 WO 2020042415 A1 WO2020042415 A1 WO 2020042415A1 CN 2018119542 W CN2018119542 W CN 2018119542W WO 2020042415 A1 WO2020042415 A1 WO 2020042415A1
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acid
optionally
base layer
coating
composite material
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PCT/CN2018/119542
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English (en)
Chinese (zh)
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孙大陟
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深圳南科新材科技有限公司
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
    • C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
    • C03C17/009—Mixtures of organic and inorganic materials, e.g. ormosils and ormocers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/11—Deposition methods from solutions or suspensions
    • C03C2218/116—Deposition methods from solutions or suspensions by spin-coating, centrifugation

Definitions

  • the present application belongs to the field of hydrophobic materials, and in particular, relates to a hydrophobic composite material, a preparation method, a use thereof, and a glass containing the same.
  • Fluorine-containing composite materials or coatings because of their low surface free energy, have potential application values in many areas, such as the use of waterproof materials on the surface of mobile phones, automobiles, optical instruments, glasses, or LCD displays.
  • Applying a hydrophobic fluorinated composite material on the surface of the mobile phone can effectively improve the smoothness of the mobile phone.
  • the hydrophobic fluorinated coating on the surface of the eye lens can avoid scratches on the glasses and effectively extend the life of the glasses. Covering the fluorine-containing coating can prevent it from being contaminated and difficult to clean, causing scratches on the lens and avoiding damage to the optical lens.
  • Applying fluorine-containing composite materials to the performance of the building's curtain wall and window glass can keep it clean for a long time.
  • CN103068764A discloses a new method for treating a substrate by using a perfluoropolyether silane composition.
  • a perfluoropolyether silane composition can be used to treat materials such as ceramics or glass capable of having antimicrobial properties.
  • the obtained materials have antimicrobial properties and are on the surface.
  • the chemically strengthened glass coated with a low surface energy coating contains a certain concentration of silver ions.
  • CN102503164A discloses a method for preparing abrasion-resistant hydrophobic glass, including the following steps: (A) preparing a SiO 2 resin mixed sol: a hydrolysis catalyst, a solvent, and a sol precursor according to a certain volume Than mixing and stirring to get a sol, and then a resin with a specific epoxy value After curing agent was added to the sol stir to give SiO 2 / mixed sol resin; (B) front glass treatment: The cerium oxide polishing powder for polishing glass, the glass surface dirt removed, and then mixed solution of sulfuric acid and hydrogen peroxide Glass is cleaned to form active hydroxyl groups on the glass surface; (C) SiO 2 / resin composite film is plated on the glass surface: the prepared SiO 2 / resin mixed sol is coated on the glass surface before treatment
  • the purpose of this application is to provide a simple and effective method for preparing hydrophobic fluorine-containing composite materials and corresponding hydrophobic composite materials, to further improve the hydrophobic properties, friction resistance, antifouling properties, and light transmission properties of commonly used materials such as glass materials, Moreover, the preparation method needs to have the advantages of simple operation, convenient use, and suitability for large-scale promotion.
  • one object of the present application is to provide a hydrophobic composite material, which includes a hydroxyl-modified base layer whose surface is coated with an organic fluoride coating.
  • a carbon fluoride material is deposited on the surface of the hydroxyl-modified base layer.
  • the organic fluoride in the organic fluoride coating is connected to the hydroxyl-modified base layer through a chemical bond.
  • a hydroxyl group is deposited on the surface of the base layer and a fluorocarbon material is deposited, and then an organic fluoride coating is introduced through a graft reaction, so that the fluorinated carbon material deposited on the surface of the base layer is tightly covered, so that the fluorine on the surface of the base layer
  • the atom density is further increased, and the hydrophobic layer formed is denser, and a composite material with excellent hydrophobic properties can be obtained.
  • the organic fluoride coating restricts the fluorocarbon material and the fluorinated carbon material.
  • the surface of the obtained composite material has a higher density of fluorine atoms and a more uniform distribution, and the hydrophobic performance and service life can be further improved.
  • the organic fluoride in the organic fluoride coating includes any one or a mixture of at least two of perfluorosilane, perfluorocarboxylic acid, or perfluorosulfonic acid, such as perfluorosilane and perfluorocarboxylic acid.
  • perfluorosilane perfluorocarboxylic acid
  • perfluorosulfonic acid such as perfluorosilane and perfluorocarboxylic acid.
  • the perfluorosilane includes perfluorododecyltrichlorosilane, perfluorododecyltrimethoxysilane, perfluorooctyltriethoxysilane or perfluorodecyltrimethoxysilane.
  • the perfluorosulfonic acid includes any one of perfluoro-1-butanesulfonic acid, perfluoro-1-hexanesulfonic acid, perfluoro-1-octanesulfonic acid, or perfluoro-1-decanesulfonic acid.
  • a mixture of at least two kinds such as a mixture of perfluoro-1-butanesulfonic acid and perfluoro-1-hexanesulfonic acid, a mixture of perfluoro-1-octanesulfonic acid and perfluoro-1-decanesulfonic acid, or Perfluoro-1-butanesulfonic acid, a mixture of perfluoro-1-hexanesulfonic acid and perfluoro-1-octanesulfonic acid, and the like.
  • the perfluorocarboxylic acid includes any one or a mixture of at least two of perfluorohexanoic acid, perfluorononanoic acid, perfluorodecanoic acid, perfluoroundecanoic acid, or perfluorododecanoic acid, such as It is a mixture of perfluorohexanoic acid and perfluorodecanoic acid, a mixture of perfluoroundecanoic acid and perfluorododecanoic acid, or a mixture of perfluorohexanoic acid, perfluorononanoic acid and perfluorodecanoic acid, and the like.
  • the fluorinated carbon material includes fluorinated graphene and / or fluorinated graphite.
  • the particle size of the fluorinated carbon material is 10-100 nm, for example, 12 nm, 15 nm, 20 nm, 25 nm, 30 nm, 40 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90 nm, or 95 nm.
  • Carbonized materials can be deposited more stably on the surface of the base layer without affecting the stabilization of organic fluoride coatings by fluorinated carbon materials.
  • the hydroxyl-modified base layer is obtained by reacting a silane coupling agent with the base layer and introducing a hydroxyl-containing silane on the surface of the base layer.
  • the silane coupling agent includes hexadecyltrimethoxysilane, isobutyltriethoxysilane, methacryloxypropyltrimethoxysilane, or vinyltrimethoxysilane. Any one or a mixture of at least two, such as a mixture of cetyltrimethoxysilane and methacryloxypropyltrimethoxysilane, isobutyltriethoxysilane and vinyltrimethoxy A mixture of silanes or a mixture of isobutyltriethoxysilane, methacryloxypropyltrimethoxysilane, and vinyltrimethoxysilane.
  • the base layer includes glass.
  • Another object of the present application is to provide a method for preparing a hydrophobic composite material.
  • the method includes the following steps:
  • Step (1) dispersing the silane coupling agent and the fluorinated carbon material in the first organic solvent to obtain a clean coating solution, and coating the solution on the surface of the base layer to obtain a hydroxyl-modified base layer;
  • Step (2) dispersing the organic fluoride and the fluorinated carbon material in a second organic solvent to obtain a post-treatment coating solution, and coating the surface on the surface of the hydroxyl-modified base layer obtained in step (1) to obtain a surface A hydroxyl-modified base layer coated with an organic fluoride coating;
  • step (3) the hydroxy-modified base layer whose surface is coated with an organic fluoride coating obtained in step (2) is heated and / or irradiated to obtain the hydrophobic composite material.
  • the content of the silane coupling agent in the cleaning coating solution described in step (1) is 0.5 to 2% by weight, for example, 0.6% by weight, 0.7% by weight, 0.8% by weight, and 0.9% by weight.
  • % 1% by weight, 1.2% by weight, 1.4% by weight, 1.6% by weight, 1.7% by weight, 1.8% by weight or 1.9% by weight, and the like.
  • the content of the fluorocarbon material in the cleaning coating solution described in step (1) is 0.05 to 0.2 wt%, for example, 0.06 wt%, 0.07 wt%, 0.08 wt%, 0.09 wt%, 0.1wt%, 0.12wt%, 0.13wt%, 0.14wt%, 0.15wt%, 0.16wt%, 0.17wt%, 0.18wt% or 0.19wt%, etc.
  • the silane coupling agent described in step (1) includes cetyltrimethoxysilane, isobutyltriethoxysilane, methacryloxypropyltrimethoxysilane, or vinyl Any one or a mixture of at least two types of trimethoxysilane, such as a mixture of cetyltrimethoxysilane and methacryloxypropyltrimethoxysilane, isobutyltriethoxysilane Mixtures with vinyltrimethoxysilane or isobutyltriethoxysilane, mixtures of methacryloxypropyltrimethoxysilane and vinyltrimethoxysilane, and the like.
  • trimethoxysilane such as a mixture of cetyltrimethoxysilane and methacryloxypropyltrimethoxysilane, isobutyltriethoxysilane Mixtures with vinyltrimethoxysilane or isobutyltriethoxysilane, mixtures of me
  • the base layer described in step (1) includes glass.
  • the first organic solvent described in step (1) includes ethanol and / or isopropanol.
  • the fluorinated carbon material described in step (1) and step (2) includes fluorinated graphene and / or fluorinated graphite.
  • the particle size of the fluorinated carbon material described in step (1) and step (2) is 10 to 100 nm, for example, 12 nm, 15 nm, 20 nm, 25 nm, 30 nm, 40 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90nm or 95nm.
  • the coating described in step (1) and step (2) includes roll coating, spin coating or knife coating.
  • the dispersion described in step (1) and step (2) includes ultrasonic dispersion.
  • the content of the fluorinated carbon material in the post-treatment solution described in step (2) is 0.1 to 0.5 wt%, such as 0.15 wt%, 0.20 wt%, 0.25% wt, 0.30wt, calculated on a weight percentage basis. %, 0.35 wt%, 0.40 wt%, 0.45 wt% or 0.48 wt%, etc.
  • the organic fluoride in step (2) includes any one or a mixture of at least two of perfluorosilane, perfluorocarboxylic acid, or perfluorosulfonic acid, such as perfluorosilane and perfluorocarboxylic acid. Mixture of perfluorosulfonic acid and perfluorocarboxylic acid, or of perfluorosilane, perfluorosulfonic acid and perfluorocarboxylic acid.
  • the perfluorosilane includes perfluorododecyltrichlorosilane, perfluorododecyltrimethoxysilane, perfluorooctyltriethoxysilane or perfluorodecyltrimethoxysilane.
  • the perfluorosulfonic acid includes any one of perfluoro-1-butanesulfonic acid, perfluoro-1-hexanesulfonic acid, perfluoro-1-octanesulfonic acid, or perfluoro-1-decanesulfonic acid.
  • a mixture of at least two kinds such as a mixture of perfluoro-1-butanesulfonic acid and perfluoro-1-hexanesulfonic acid, a mixture of perfluoro-1-octanesulfonic acid and perfluoro-1-decanesulfonic acid, or Perfluoro-1-butanesulfonic acid, a mixture of perfluoro-1-hexanesulfonic acid and perfluoro-1-octanesulfonic acid, and the like.
  • the perfluorocarboxylic acid includes any one or a mixture of at least two of perfluorohexanoic acid, perfluorononanoic acid, perfluorodecanoic acid, perfluoroundecanoic acid, or perfluorododecanoic acid, such as It is a mixture of perfluorohexanoic acid and perfluorodecanoic acid, a mixture of perfluoroundecanoic acid and perfluorododecanoic acid, or a mixture of perfluorohexanoic acid, perfluorononanoic acid and perfluorodecanoic acid, and the like.
  • the second organic solvent described in step (2) includes ethanol and / or isopropanol.
  • the heating and / or irradiation treatment time in step (3) is 1 to 10 minutes, for example, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, 7 minutes, 8 minutes, or 9 minutes.
  • the heating and / or irradiation treatment described in step (3) is irradiated with an infrared light source or irradiated with sunlight.
  • a third object of the present application is to provide a use of the hydrophobic composite material, which has excellent hydrophobic properties and can be used as a waterproof coating on the surface of a mobile phone, automobile, lens, display screen, or optical device.
  • the fourth object of the present application is to provide a glass, the glass surface containing the hydrophobic composite material.
  • the present application introduces hydroxyl groups on the surface of the base layer and deposits a fluorinated carbon material, and then introduces an organic fluoride coating through a graft reaction.
  • the synergy between the two is used to further increase the density of fluorine atoms on the surface of the base layer, resulting in hydrophobicity.
  • the layers are denser, and the static contact angle of the obtained hydrophobic composite material can reach above 120 °. Compared with other products, the hydrophobic capacity is increased by about 10%, and the hydrophobic performance has obvious advantages.
  • FIG. 1 is a SEM photograph of the hydrophobic composite material 6 obtained in Example 6 of the present application.
  • the hydrophobic composite material 1 is prepared by the following steps:
  • Step (1) Disperse 1 g of cetyltrimethoxysilane and 0.1 g of fluorinated graphene nanoparticles with an average particle diameter of 15 nm in 99 g of ethanol, and use an ultrasonic cleaner with a power of 200 W to perform ultrasonic treatment for 20 min to make it Disperse uniformly to obtain a clean coating solution, spin-coat it on the surface of silicate glass using a spin coater, and dry to obtain a hydroxyl-modified base layer;
  • Step (2) Disperse 1 g of perfluoro-1-hexanesulfonic acid, 0.7 g of perfluorododecyltrimethoxysilane, and 0.3 g of fluorinated graphene nanoparticles with an average particle diameter of 15 nm in 100 g of isopropyl alcohol.
  • An ultrasonic cleaner with a power of 200 W was subjected to ultrasonic treatment for 20 minutes to make it uniformly dispersed to obtain a post-treatment coating solution, which was scraped on the surface of the hydroxyl-modified base layer obtained in step (1) to obtain a surface coated with organic A hydroxyl-modified base layer of a fluoride coating;
  • step (3) the hydroxy-modified base layer whose surface is coated with an organic fluoride coating obtained in step (2) is placed under an infrared lamp with a power of 100 W and heated and irradiated for 10 minutes to obtain the hydrophobic composite.
  • Material 1
  • Example 1 The difference from Example 1 is only that the added amount of cetyltrimethoxysilane in step (1) is 0.6 g, and the added amount of fluorinated graphene nanoparticles is 0.2 g.
  • Example 2 gave a hydrophobic composite material 2.
  • Example 1 The difference from Example 1 is only that the amount of hexadecyltrimethoxysilane added in step (1) is 2 g, and the amount of fluorinated graphene nanoparticles is 0.06 g.
  • Example 3 gives a hydrophobic composite material 3.
  • Example 1 The only difference from Example 1 is that the hexadecyltrimethoxysilane in step (1) was replaced with methacryloxypropyltrimethoxysilane.
  • Example 4 obtained a hydrophobic composite material 4.
  • Example 1 The difference from Example 1 is only that the average particle diameter of the fluorinated graphene nanoparticles in step (1) and step (2) is 45 nm.
  • Example 5 gives a hydrophobic composite material 5.
  • Example 1 The difference from Example 1 is only that the fluorinated graphene nanoparticles in step (1) and step (2) were replaced with a mixture of fluorinated graphene nanoparticles and fluorinated graphite, and the average particle diameter of the mixture was 100 nm.
  • Example 6 gives a hydrophobic composite material 6.
  • Example 1 The difference from Example 1 is only that the perfluoro-1-hexanesulfonic acid and perfluorododecyltrimethoxysilane in step (2) were replaced with 1.7 g of perfluorodecanoic acid.
  • Example 7 gives a hydrophobic composite material 7.
  • Example 1 The difference from Example 1 is only that the time of heating and irradiation treatment in step (3) is 1 min.
  • Example 8 gave a hydrophobic composite material 8.
  • Example 1 The difference from Example 1 is only that the average particle diameter of the fluorinated graphene nanoparticles in step (1) and step (2) is 5 nm.
  • Example 9 gives a hydrophobic composite material 9.
  • Example 1 The only difference from Example 1 is that the fluorinated graphene nanoparticles in step (1) and step (2) were replaced with fluorinated graphite ions, and the average particle diameter was 225 nm.
  • Example 10 gives a hydrophobic composite material 10.
  • the hydrophobic composite material 11 is prepared by the following steps:
  • Step (1) Disperse 1 g of cetyltrimethoxysilane and 0.1 g of fluorinated graphene nanoparticles with an average particle diameter of 15 nm in 99 g of ethanol, and use an ultrasonic cleaner with a power of 200 W to perform ultrasonic treatment for 20 min to make it Disperse uniformly to obtain a clean coating solution, spin-coat it on the surface of silicate glass using a spin coater, and dry to obtain a hydroxyl-modified base layer;
  • step (2) the hydroxyl-modified base layer obtained in step (1) is placed under an infrared lamp with a power of 100 W, and is heated and irradiated for 10 minutes to obtain the hydrophobic composite material 11.
  • the hydrophobic composite material 12 is prepared by the following steps:
  • Step (1) Disperse 1 g of cetyltrimethoxysilane in 99 g of ethanol, and use an ultrasonic cleaner with a power of 200 W to perform ultrasonic treatment for 20 min to uniformly disperse to obtain a clean coating solution, and use a spin coater to disperse it. Spin-coated on the surface of silicate glass and dried to obtain a hydroxyl-modified base layer;
  • Step (2) Disperse 1 g of perfluoro-1-hexanesulfonic acid and 0.7 g of perfluorododecyltrimethoxysilane in 100 g of isopropanol, and use an ultrasonic cleaner with a power of 200 W to perform ultrasonic treatment for 20 min to make it Disperse uniformly to obtain a post-treatment coating solution, and apply it on the surface of silicate glass to obtain a silicate glass whose surface is coated with an organic fluoride coating;
  • step (3) the silicate glass coated with the organic fluoride coating on the surface obtained in step (2) is placed under an infrared lamp with a power of 100W and heated and irradiated for 10 minutes to obtain the hydrophobic composite material. 12.
  • hydrophobic composite materials 1 to 12 obtained in the above examples and comparative examples were tested by the following test methods, and the test results are listed in Table 1.
  • test voltage 1kV-30kV The VEGA 3LMH scanning electron microscope (SEM) produced by TESCAN Company was used to conduct morphological tests on the surfaces of the hydrophobic composite materials 1-12, and the test parameters were: test voltage 1kV-30kV.
  • FIG. 1 is an SEM photograph of the hydrophobic composite material 6 obtained in Example 6 of the present application. It can be clearly seen that the fluorocarbon material is restricted by the organic fluoride coating and is uniformly and tightly deposited on the surface of the silicate glass layer.
  • Example 1 and Examples 5 to 6 and Examples 9 to 10 From the comparison between Example 1 and Examples 5 to 6 and Examples 9 to 10, it can be known that when the average particle diameter of the fluorocarbon material is in the range of 10 to 100 nm, it can be uniformly deposited on the surface of the base layer and subjected to The limiting effect of organic fluoride coatings, when the particle size is too large or too small, the corresponding limiting effect weakens, and the fluorinated carbon material is easier to leave from the surface of the base layer, resulting in the hydrophobic composite material being hydrophobic after prolonged use. Poor performance.
  • Example 1 Comparative Example 1
  • the hydrophobic effect is average, and the obtained composite material is still a hydrophilic material.
  • the fluorinated carbon material on the surface of the base layer is easy to leave when in use, which causes the hydrophobic property brought by the fluorinated carbon material to basically disappear.
  • Example 1 From the comparison between Example 1 and Comparative Example 2, it can be known that when only an organic fluoride coating is coated on the surface of the base layer, the composite material obtained has a general hydrophobic property, and is similar to other similar hydrophobic materials obtained in related technologies. (The contact angle is about 104 °).
  • the present application introduces hydroxyl groups on the surface of the base layer and deposits a fluorinated carbon material, and then introduces an organic fluoride coating through a graft reaction.
  • the synergy between the two is used to make the fluorine atom density on the surface of the base layer further Improved, the formed hydrophobic layer is denser, and the static contact angle of the obtained hydrophobic composite material can reach more than 120 °.
  • the hydrophobic capacity is increased by about 10%, and the hydrophobic performance has obvious advantages.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

L'invention concerne un matériau composite hydrophobe, ce matériau composite hydrophobe comprenant une couche de base modifiée par hydroxy ayant une surface revêtue dans un revêtement de fluorure organique, un matériau de fluorure de carbone étant déposé sur la surface de la couche de base modifiée par hydroxy, et le fluorure organique dans le revêtement de fluorure organique étant relié à la couche de base modifiée par hydroxy au moyen de liaisons chimiques.
PCT/CN2018/119542 2018-08-27 2018-12-06 Matériau composite hydrophobe. procédé de préparation et son utilisation, et verre le contenant WO2020042415A1 (fr)

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CN201810981040.7A CN108996915A (zh) 2018-08-27 2018-08-27 一种疏水复合材料，其制备方法、用途和含有其的玻璃

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