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Ultraviolet light solidifying paint containing POSS and its preparation method

A technology for curing coatings and ultraviolet light, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of rare POSS applications, achieve great development prospects, wide application, and fast curing of coating films

Inactive Publication Date: 2009-06-24
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic research in this area is still in its infancy. Most of the existing literature is about the structural characteristics of POSS and its preparation. It is relatively rare to refer to the application of POSS in UV-curable coatings.

Method used

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  • Ultraviolet light solidifying paint containing POSS and its preparation method
  • Ultraviolet light solidifying paint containing POSS and its preparation method
  • Ultraviolet light solidifying paint containing POSS and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In a three-necked flask equipped with a reflux condensing device and a stirrer, carefully add 17.7 mL of distilled water to 10 mL of trichloromethylsiloxane and 60 mL of acetone under stirring conditions, and stir in a water bath at 50 ° C for 48 hours, and the reaction is completed Afterwards, the collected white solid was washed with acetone and filtered, and then vacuum-dried overnight at 45 ° C. The product was suspended with 20 times the weight of pyridine and stirred overnight, and the pyridine solution was poured into a mixture of an equal volume of concentrated hydrochloric acid and ice, and then The collected precipitate was washed with water until neutral, and dried under vacuum at 60° C. overnight. And then thoroughly extracted with ether, unmodified POSS can be obtained. Then in 15ml of the above POSS triethylamine / tetrahydrofuran (1:100, volume ratio) mixed solution with a concentration of 0.025g / ml, 20ml of γ-acryloxytrimethoxy with a concentration of 0.02...

Embodiment 2

[0047] The same preparation conditions as in Example 1 were adopted, but the amount of POSS containing a double bond was changed to 1.0 g. The prepared polyurethane acrylate UV-curable coating containing POSS is sample 2 (containing 5% POSS).

[0048] Figure 4 is the TG-DSC curve (containing 5% POSS) of this polyurethane acrylate UV-curable coating film containing POSS. The performance results of the POSS-containing polyurethane acrylate UV-curable coating film are shown in Table 1.

Embodiment 3

[0050] The same preparation conditions as in Example 1 were used, but the diluent butyl acrylate (10 g) was changed to butyl acrylate (5.0 g) and trimethylolpropane triacrylate (TMPTA) (5.0 g). The prepared polyurethane acrylate UV-curable coating containing POSS is sample 3.

[0051] The performance results of the POSS-containing polyurethane acrylate UV-curable coating film are shown in Table 1.

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PUM

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Abstract

The invention belongs to the technical field of functional polymer materials, in particular to a POSS-containing UV-curable coating and a preparation method thereof. The preparation method is as follows: Partial hydrolysis of organosilane-corner sealing method is used to prepare a POSS with double bonds; after mixing diisocyanate, polyol, catalyst and active diluent uniformly in a certain proportion, the temperature is raised to make the reaction tend to be completed, that is, A PUA prepolymer containing POSS is obtained; finally, the above-mentioned PUA prepolymer containing POSS, catalyst, photoinitiator, reactive diluent, and other auxiliary agents are stirred evenly to obtain a UV-curable polyurethane acrylic coating containing POSS. The invention has the advantages of simple process, little pollution to the environment, low cost, fast curing of the coating film, etc., and can meet various needs required by the development of coatings.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to a POSS-containing UV-curable coating and a preparation method thereof. Background technique [0002] With people's continuous pursuit of high-performance and high-quality products, as well as increasing concerns about energy consumption and environmental pollution, coatings will increasingly develop in the direction of high performance, low cost, low energy consumption and no environmental pollution. In recent years, new environmentally friendly coatings represented by radiation-curing coatings, water-based coatings, high-solid coatings and powder coatings have emerged. Among them, radiation-curing coatings do not pollute the environment because they do not contain volatile organic solvents, and the coating film is dry. After that, it has no residual solvent and excellent application performance, so it has been promoted as the first environmental ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14
Inventor 杨正龙浦鸿汀
Owner TONGJI UNIV
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