Page 38 - 201811
P. 38
·1824· 精细化工 FINE CHEMICALS 第 35 卷
能够抑制有机颜料的热分解速度,可有效提升颜料
的热稳定性。
(4)C.I.PR31*-2SiO 2 制备的颜料色浆具有最
高的比吸光度,分散稳定性好,黏度比 C.I.PR31 和
C.I.PR31*制备的色浆小,流动性更佳。
综上所述,对颜料进行松香酸改性处理且在其
表面包覆无机物 SiO 2 能够有效地改变颜料的极性、
分散稳定性、晶体堆砌方式等性能,使之更加适用
于水性分散体系。
图 9 颜料流变性能比较
Fig.9 Comparison of rheological properties of pigment 参考文献:
samples [1] Zhang Qingyun (张庆云), Xie Xuehui (谢学辉), Liu Jianshe (柳建
设). Research overview of microbial co-metabolism on printing and
始有机颜料制备的色浆。主要由于偶合过程中松香 dyeing wastewater treatment: a review[J]. Chemical Industry and
Engineering Progress (化工进展), 2017, 36(9): 3492-3501.
酸阻止了晶核的进一步成长,使颜料粒子的粒径明
[2] Xie Xuehui (谢学辉), Liu Na (刘娜), Zhu Wenxiang (朱文祥), et al.
显减小,且颗粒大小较为均匀,加之其在水性介质 Construction of bioaugmentation engineered bacteria and their application
中亲水性好,分散稳定,明显地改善了颜料的抗絮 on dyeing wastewater decolorizing: a review[J]. Chemical Industry
and Engineering Progress (化工进展), 2013, 32(4): 869-873.
凝性,使颜料色浆具有较好的流变性能。C.I.PR31*-
[3] Bazrafshan Z, Ataeefard M, Nourmohammadian F. Modeling the
2SiO 2 表面完全亲水,分散性进一步提升,故与 effect of pigments and processing parameters inpolymeric composite
C.I.PR31、C.I.PR31*制备的色浆相比黏度更小,流 for printing ink application using the response surface methodology
[J]. Progress in Organic Coatings, 2015, 82(5): 68-73.
变性能更佳。有机颜料用于印花色浆或油墨中时应 [4] Percy M J, Michailidou V, Armes S P, et al. Synthesis of vinyl
具有较佳的流变性能。以水性油墨为例,流变性能 polymer-silica colloidal nanocomposites via aqueous dispersion
差易导致油墨传递、转移困难;流动性过强,则印 polymerization[J]. Langmuir, 2003, 19(6): 2072-2079.
[5] Patole A S, Patole S P, Kang H, et al. A facile approach to the
迹易铺展,网点扩大严重,影响印刷品的清晰度、 fabrication of graphene/polystyrene nanocomposite by in situ
层次及颜色的表现;较好的流变性能则可使网点准 microemulsion polymerization[J]. Journal of Colloid and Interface
Science, 2010, 350(2): 530-537.
确呈现,且边缘清晰,图文清晰度佳。
[6] Landfester K. Miniemulsion polymerization and the structure of
polymer and hybrid nanoparticles[J]. Angewandte Chemie International
3 结论 Edition, 2009, 48(25): 4488-4507.
[7] Yun K M, Suryamas A B, Hirakawa C, et al. A new physical route to
(1)在偶合过程中采用松香酸对 C.I.PR31 进 produce monodispersed microsphere nanoparticle-polymer composites[J].
Langmuir, 2009, 25(18): 11038-11042.
行改性处理可使颜料晶体形貌由长条状转呈圆片
[8] Yuan Junjie (袁俊杰). Encapsulation of organic pigments with nano
状,极性明显增强。其用量为总反应物质量的 3% inorganic oxides and its application in coatings[D]. Shanghai: Fudan
时,可使颜料与水之间的接触角由 68.5°降至 52.8°, University (复旦大学), 2006.
[9] Ali S I, Heuts J P, Hawkett B S, et al. Polymer encapsulated gibbsite
Zeta 电位绝对值由 14.6 mV 升至 20.7 mV,粒径及 nanoparticles: efficient preparation of anisotropic composite latex
粒径分布明显变窄,具有最佳的亲水性能。 particles by RAFT-based starved feed emulsion polymerization[J].
Langmuir, 2009, 25(18): 10523-10533.
(2)经过松香酸改性后颜料色样偏向红色和蓝
[10] Widiyandari H, Iskandar F, Hagura N, et al. Preparation and
色,与标准样(C.I.PR31)相比色差(ΔE)为 0.68。 characterization of nanopigment-poly(styrene-co-n-butyl acrylate-
冲淡后颜料的着色力为 104.95%,上升了约 4.95%; co-methacrylic acid) composite particles by high speed
homogenization-assisted suspension polymerization[J]. Journal of
SiO 2 的包覆层越多,色调偏转程度越大,越偏向绿 Applied Polymer Science, 2008, 108(2): 1288-1297.
色和蓝色方向。2 层及 2 层以上的 SiO 2 几乎能够将 [11] Noshchenko O, Kuscer D, Mocioiu O C, et al. Effect of milling time
and pH on the dispersibility of lead zirconatetitanate in aqueous
有机颜料颗粒表面完全包覆,使颜料接触角降至 0,
media for inkjet printing[J]. Journal of the European Ceramic
显示出完全亲水的性能。C.I.PR31*-2SiO 2 的着色力 Society, 2014, 34(2): 297-305.
可达 105.09%,提高了 5.09%,与标准样的色差(ΔE) [12] Qi Y L, Xiang B, Tan W B, et al. Hydrophobic surface modification
of TiO 2 nanoparticles for production of acrylonitrile-styrene-acrylate
为 0.96,符合油墨和涂料的生产要求。 terpolymer/TiO2 composited cool materials[J]. Applied Surface
(3)C.I.PR31 经过松香酸改性和 SiO 2 包覆后 Science, 2017, 419 (8): 213-223.
[13] Liu Sisi (刘思思). Wettability and tribology properties of microscale
热分解温度 T 5% 由 281 ℃升至 285 ℃和 297℃,最大
silicon-based superhydrophobic surface[D]. Beijing: Beijing Jiaotong
失重率对应的温度 T max 由 507 ℃升至 528 ℃和 University (北京交通大学), 2013.
550 ℃,稳定性逐步提升,表明 SiO 2 在一定程度上 (下转第 1833 页)