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Electron beam curing coating

An electron beam curing and coating technology, which is applied in polyurea/polyurethane coatings, coatings, dyed low-molecular organic compound treatment, etc., can solve the problem of high polarity, poor compatibility, affecting the transparency and gloss of coatings, etc. problems, achieve good hardness and weather resistance, and improve performance

Active Publication Date: 2016-03-30
GUANGDONG TIANAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are a large number of hydroxyl groups on the surface of general nanomaterials such as silicon dioxide, titanium dioxide, zinc oxide, and aluminum oxide, which are highly polar and have poor compatibility with organic monomers and prepolymers. Although physical methods such as sanding , ball milling, etc. can disperse nanofillers in organic monomers and solvents, but the stability is not very good. This is because nanoparticles are easy to aggregate together to form secondary particles, which are much larger in size than primary nanoparticles and affect Coating transparency and gloss

Method used

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  • Electron beam curing coating
  • Electron beam curing coating

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preparation example Construction

[0041] The preparation method of the dispersion liquid of described inorganic nanometer material, comprises the following steps:

[0042] A) mixing the solution of the inorganic nanomaterial with an organic solvent to obtain a mixed solution, and adjusting the pH value of the mixed solution;

[0043] B) reacting the solution obtained in step A), the acrylate monomer and the silane coupling agent to obtain a dispersion of inorganic nanomaterials;

[0044] The preparation method of the dispersion liquid of described inorganic ultraviolet absorber, comprises the following steps:

[0045] A) mixing the solution of the inorganic nano-ultraviolet absorber with an organic solvent to obtain a mixed solution, and adjusting the pH value of the mixed solution;

[0046] B) reacting the solution obtained in step A), the acrylate monomer and the silane coupling agent to obtain the dispersion of the inorganic nano-ultraviolet absorber;

[0047] The inorganic nanomaterial is one or both of ...

Embodiment 1

[0116] Add 100g of ethanol to 100g of Nexsil12 (containing 30% silicon dioxide, 12 nanometers), adjust the pH value to 3-4 with hydrochloric acid, then add 60g of pentaerythritol triacrylate (PETA), and finally add 15g of γ-(meth)acryloyloxypropyl triethoxysilane; the mixed solution was heated to 60°C and kept stirring for 6 hours; the solvent ethanol and water were removed under vacuum with a rotary evaporator, and the temperature did not exceed 60°C to obtain a viscous transparent dispersion of silica in PETA liquid.

Embodiment 2

[0118] Add 200g of ethanol to 200g of Nexsil12 (containing 30% silicon dioxide, 12 nanometers), adjust the pH value to 3-4 with hydrochloric acid, then add 120g of pentaerythritol triacrylate (PETA), and finally add 15g of γ-(meth)acryloyloxypropyl Triethoxysilane and 15g vinyltriethoxysilane; the mixed solution was heated to 60°C and kept stirring for 6h, the solvent ethanol and water were removed under vacuum with a rotary evaporator, and the temperature did not exceed 60°C to obtain Viscous transparent dispersion of silicon in PETA.

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Abstract

The invention provides an electron beam curing coating. The coating comprises dispersion liquid of an inorganic nano-material, dispersion liquid of an inorganic nano ultraviolet absorbent, a polyfunctional monomer and an acrylic ester prepolymer; the dispersion liquid of the inorganic nano-material is selected from one or two of dispersion liquid of silicon dioxide and dispersion liquid of aluminum oxide, the dispersion liquid of the inorganic nano ultraviolet absorbent is dispersion liquid of titanium dioxide or dispersion liquid of zinc oxide, and a silane coupling agent is an acrylate base and halogen alkyl silane coupling agent; the particle size of the silicon dioxide is 5 to 100nm, and the particle size of the aluminum oxide is 12 to 100nm. According to the coating provided by the invention, through respectively performing surface modification on the silicon dioxide, the aluminum oxide, the titanium dioxide and the zinc oxide to enable the same to be respectively dissolved into an acrylate monomer and form dispersion liquid of an inorganic material without agglomeration, and the compatibility with the polyfunctional monomer and the acrylic ester prepolymer is better, the obtained electron beam curing coating can be used as a coating material, and the coating has better hardness and weather resistance.

Description

[0001] The patent application of the present invention is a divisional application of the invention patent application with the filing date of 2015.02.15, the application number of 201510085333.3, and the invention title of "Electron Beam Curing Coating, Preparation Method and Application of Electron Beam Curing Coating". technical field [0002] The invention relates to the technical field of surface coatings, in particular to electron beam curing coatings, preparation methods and applications of electron beam curing coatings. Background technique [0003] Plastics are used more and more in everyday life, from household appliances, interior and exterior decoration, to automotive parts. But plastics have at least two fatal weaknesses: one is poor weather resistance, it is easy to decompose under the action of light and heat, reducing its service life, and some even decompose to produce toxic products and gases; the other is that plastics are relatively soft, The surface is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12C08J7/043C08J7/046
CPCC08K3/22C08K3/36C09D175/14C08K2003/2241C08K2003/2227C08K2003/2296C08K2201/011C09C3/08C09C3/12C09D4/06C09C1/3684C09C1/407C09C1/043C09C1/3081C01P2004/64C09D7/40C09D7/61C09D7/67C08J7/043C08J7/046C08K3/34C09D133/08
Inventor 邓鹏飏吴启超丰俊湘柳美华董德文宋岱瀛陈慧雪王东勇
Owner GUANGDONG TIANAN NEW MATERIAL