研究目的
Investigating the effects of surface grafting modification of titanium dioxide by silane coupler KH570 on the application of blue light curing ink, particularly focusing on improving the color fastness to crocking of printed fabrics.
研究成果
The study demonstrated that grafting modification of TiO2 with KH570 significantly improved the properties of the pigments and their application in blue-light curing inks. The optimal KH570 concentration range was found to be 12～20 wt %, which resulted in the best performance in terms of dispersion stability, photo-polymerization, and tensile properties of the curing films. The printed fabrics using these modified pigments achieved color fastness to crocking no less than 4 grades.
研究不足
The study focused on the modification of TiO2 with KH570 and its application in blue-light curing inks, but did not explore other potential modifiers or applications beyond textile printing. The optimal KH570 concentration range was identified, but the study did not investigate the effects of other variables such as temperature or reaction time on the grafting process.
1：Experimental Design and Method Selection:
The study involved grafting modification of TiO2 pigments with silane coupler KH570 at various concentrations to prepare reactive TiO2 pigments.
2：Sample Selection and Data Sources:
TiO2 pigments were modified with KH570 at concentrations of 3 wt %, 6 wt %, 9 wt %, 12 wt %, 15 wt %, and 20 wt %.
3：List of Experimental Equipment and Materials:
Materials included KH570, TiO2 pigment, hydroxyethyl acrylate (HEA), iso-Bornyl acrylate (IBOA), camphorquinone (CQ), ethyl-4-dimethylaminobenzoate (EDB), and commercial oligomer SM
4：Equipment included FT-IR Spectrometer, Laser Particle Sizes Analyzer, Contact Angle Goniometer, Photo-DSC, Senior Rotational Rheometer, and Instron 3367 material testing machine. Experimental Procedures and Operational Workflow:
62 The modification process involved dispersing TiO2 in ethanol, adding KH570, and heating in a water bath. The modified pigments were then used to prepare blue-light curing inks and films, which were characterized for various properties.
5：Data Analysis Methods:
The properties of the modified pigments, inks, and films were analyzed using FT-IR, particle size analysis, contact angle measurements, photo-DSC, rheological measurements, and tensile testing.
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