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Coil-coated spectrally selective coatings on copper or aluminum with pigments modified by aminosilane

一种氨基硅烷、涂料的技术，应用在染色有机硅化合物处理、涂层、纤维状填料等方向

Inactive Publication Date: 2012-05-02
ALANOD ALUMINUM VEREDLUNG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they are not the best choice for TISS coatings for solar absorbers due to moderate spectral selectivity

Method used

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  • Coil-coated spectrally selective coatings on copper or aluminum with pigments modified by aminosilane
  • Coil-coated spectrally selective coatings on copper or aluminum with pigments modified by aminosilane
  • Coil-coated spectrally selective coatings on copper or aluminum with pigments modified by aminosilane

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] Preparation of Aminosilane Functionalized Pigments and Dispersion Systems

[0039] The aminosilane-functionalized pigment can be isolated after functionalization by filtering the dispersion, washing with a solvent, and drying the washed pigment. Other separation methods may also be used, depending on practicality and availability of other methods.

[0040] Pigment pastes can be prepared from aminosilane-functionalized pigments in the same way as pastes are prepared from other unfunctionalized pigments: the functionalization can be carried out during the preparation of the paste, preferably at the earliest possible stage, or isolated functionalized pigments.

[0041] For functionalized pigmented coatings, the pigments can be functionalized in situ during the coating process. It is recommended to perform the functionalization of the pigments at the earliest possible stage in the preparation process. Alternatively, functionalized pigment pastes or isolated functionali...

Embodiment 1

[0052] General Procedure for Preparation of 45% Pigment Paste from Aminosilane Functionalized Pigments and Silicone-Polyester Binder

[0053]

[0054]

[0055] Under continuous dispersion, the inorganic pigment was gradually added to the xylene solution of [3-(2-aminoethyl)aminopropyl]trimethoxysilane. When the addition is complete, continue the dispersion for a further 15 minutes, then add 150 g of Silikoftal under continuous dispersion Non-stick 60, then add Bentone SD-2 and further continued dispersion for 15 minutes. The resulting dispersion was ground in a sand mill at approximately 3000 RPM to a particle size <1 μm (ISO 1524). Add n-butyl acetate with continuous dispersion.

Embodiment 2

[0057] Preparation of black silicone-polyester TSSS coatings from aminosilane-functionalized pigment pastes

[0058] Prepared according to Example 1 containing 24-3060PK pigment (Ferro GmbH)

[0059] 890g

[0060] 45% black aminosilane functionalized pigment paste

[0061] Silikoftal Non-stick 60 (Evonik Tego Chemie GmbH) 110g

[0062] Silikoftal under continuous dispersion Non-stick 60 was added to a 45% black aminosilane functionalized pigment paste prepared according to Example 1 containing 24-3060 PK pigment (Ferro GmbH).

[0063] Coatings prepared in this way, suitably diluted, can be applied by coil coating or by spraying. The deposited coating is hardened by heating at 200-250°C for 10-20 minutes, or at a lower temperature for a longer time if the substrate requires a lower curing temperature.

[0064] Prepared by spraying the paint onto a copper substrate with an equivalent thickness of 1g / m 2 The coating has ...

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Abstract

The invention relates to TSSS and TISS coatings applied by coil-coating onto substrates of copper or aluminum. Inorganic pigments functionalized by aminosilane are used for making paints, which after the coil-coating onto the substrate form the coatings. For the functionalization the pigment is dispersed in a solution of an aminosilane in a solvent or a mixture of a solvent and a binder without an addition of a non-aminosilane dispersing agent with or without subsequent grinding and use of 0.05-30 % of aminosilane on pigment. An aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound or a mixture thereof can be used as the solvent. A silicone-polyester, polyurethane or fluoropolymer can be used as the binder.

Description

technical field [0001] The invention relates to an aminosilane-modified pigment and a preparation method thereof, a coating prepared from the pigment, the preparation and application of the coating. More specifically, the present invention relates to a process for modifying the surface properties of pigments using aminosilanes for the treatment of a variety of black and colored pigments, for obtaining reliable dispersions and for the preparation thereof of pigments with improved hiding efficiency Processes for paints and coatings, and processes enabling the preparation of black or colored Thickness Sensitive Spectrally Selective (Thickness Sensitive Spectrally Selective) TSSS, and Thickness Insensitive Spectrally Selective (Thickness Insensitive Spectrally Selective) TISS paint coatings, As well as their preparation and their use on metallic and non-metallic substrates. [0002] Pigments treated with a variety of amino-functionalized silanes enable the preparation of pigment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/24C09C1/34C09C3/08F24J2/48H01L31/0216
CPCY02E10/40C01P2002/82C09C1/24F24J2/485C01P2002/32C01P2006/65C08K5/544C09C1/346C01P2004/03C09C3/12F24S70/225C08K9/06
Inventor 毛杰亚兹·科热利博里什·奥雷尔米哈·施泰因比歇尔伊万·耶尔曼马里扬卡·沃德兰迪米特里奥斯·佩罗斯
Owner ALANOD ALUMINUM VEREDLUNG
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