İpek Yeliz
Department of Chemistry and Chemical Proces Technologies, Vocational School of Tunceli, Munzur University, Tunceli Turkey.
Rare Earth Elements Application and Research Center, Munzur University, Tunceli Turkey.
Turk J Chem. 2020 Feb 11;44(1):214-223. eCollection 2020.
Zinc borate is a boron-containing chemical material that is used to increase the flame retardancy of polymeric materials, dyes, cables, fabrics, carpets, and the internal parts of automobiles and planes. Commercially used zinc borate, which has the formula of 2ZnO·3B O ·7H O, has a particle size between 10 and 20 μm. However, recent studies have shown that nanosized flame retardants have more superior flame retardancy and less negative effects on mechanical properties than microsized flame retardants. Nanosized flame retardants disperse more homogeneously and even low quantities are sufficient to provide high flame resistance. In this study, nano zinc borate powder was synthesized by a wet chemical method and the effects of nonionic, anionic, and cationic surfactants on the particle size and morphology of the zinc borate particles were investigated. Chemical purity and physical structures of the synthesized zinc borate powder were analyzed by XRD, FTIR, TG-DTA, TEM, and Zetasizer. The analysis results showed that the zinc borate powder had a chemical formula of 2ZnO·3B O ·7H O. TEM and Zetasizer results indicated that the nano zinc borate powder, which had nanoscale particle size distribution with needle- and flake-like structures, was synthesized using nonionic, anionic, and cationic surfactants.
硼酸锌是一种含硼的化学材料，用于提高聚合物材料、染料、电缆、织物、地毯以及汽车和飞机内部部件的阻燃性。商业上使用的硼酸锌化学式为2ZnO·3B₂O₃·7H₂O，粒径在10至20微米之间。然而，最近的研究表明，纳米级阻燃剂比微米级阻燃剂具有更优异的阻燃性，并且对机械性能的负面影响更小。纳米级阻燃剂分散得更均匀，即使少量也足以提供高阻燃性。在本研究中，通过湿化学方法合成了纳米硼酸锌粉末，并研究了非离子、阴离子和阳离子表面活性剂对硼酸锌颗粒粒径和形态的影响。通过XRD、FTIR、TG-DTA、TEM和Zetasizer对合成的硼酸锌粉末的化学纯度和物理结构进行了分析。分析结果表明，硼酸锌粉末的化学式为2ZnO·3B₂O₃·7H₂O。TEM和Zetasizer结果表明，使用非离子、阴离子和阳离子表面活性剂合成了具有纳米级粒径分布且呈针状和片状结构的纳米硼酸锌粉末。
