The purpose of this study is to prepare nanoscale copolymer-silicon dioxide (SiO2) dispersion for formulating textile printing white ink.
Nanoscale copolymer-SiO2 dispersion was prepared via miniemulsion polymerization. The miniemulsion formulation was optimized for preparing stable SiO2/O/W miniemulsion and nanoscale copolymer-SiO2 dispersion. The nanoscale copolymer-SiO2 was investigated by transmission electron microscope (TEM), X-ray diffraction (XRD), differential thermal gravity (DTG) and thermogravimetric analysis (TGA). The performance of white inks from this colorant was further investigated.
Nanoscale copolymer-SiO2 had a core-shell structure with about 45 nm encapsulated copolymer layer when it was synthesized under optimal miniemulsion formulation 60 per cent mass ratio of styrene (St) to KH570-SiO2, 5.0 per cent hexadecane to St and 2.0 per cent concentration of DNS-86. The nanoscale copolymer-SiO2 white ink had high thermal and centrifugal stability with high purity and color fastness.
The miniemulsion polymerization conditions required a careful control before favorable results could be achieved.
The nanoscale copolymer-SiO2 dispersion and white ink prepared by this method showed excellent stability. This research could accelerate the textiles inkjet printing application.
The reactive stabilizer DNS-86 is innovatively introduced into the miniemulsion polymerization to improve the stability of the nanoscale copolymer-SiO2 dispersion. The white ink was formulated from nanoscale copolymer-SiO2 to improve the fastness of the printed fabrics.
This work was supported by the National Natural Science Foundation of China (Grant No. 21346009), the Universities and Enterprises Prospective Joint Research Project of Jiangsu Province (BY2012050), the Fundamental Research Funds for the Central Universities (JUSRP11505) and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions. The authors also thank the Jiangnan University for supporting in the course of research.
Zhang, L., Tian, A., Wang, C., Bai, F. and Fu, S. (2017), "Formulation of nanoscale copolymer-SiO2 dispersion via miniemulsion polymerization for application in white inkjet ink", Pigment & Resin Technology, Vol. 46 No. 1, pp. 48-55. https://doi.org/10.1108/PRT-08-2015-0074Download as .RIS
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