Silicate coating is water-based paint with many advantages and wide applications in many different industries. However, there are still some problems with silicate coating: how to increase its resistance to heat at high temperatures and prolong the life of the coating. Silicate paints have high durability and longevity dependent mainly on the chemical interaction of the silicate binder with extender pigments. Therefore, our groups have studied the geopolymerization process of the sodium silicate solution with extender pigments to investigate high heat resistance silicate coating. The effect of curing time on the chemical interaction between sodium silicate solution and extender pigments (ZnO, TiO₂, Fe₂O₃, CaCO₃, and Na₂SiF₆) was investigated by Fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), and X-ray diffraction (XRD). The shift of antisymmetric stretching vibration of the Si-O-Si bond (1060 cm⁻¹) to low frequency and increase of the intensity of the Si-O-Si stretching as curing time increases from 1 to 20 days are due to the increased chemical interaction between extender pigments (ZnO, TiO₂, Fe₂O₃, CaCO₃, and Na₂SiF₆) and sodium silicate solution. Moreover, TG results of ZnO-silicate, TiO₂-silicate, CaCO₃-silicate, Na₂SiF₆-silicate, and Fe₂O₃-silicate coating at 1 and 20 days of curing show high residual geopolymer about 69–90% at 800°C. Thus, we proposed that the geopolymerization process between sodium silicate solution and extender pigments (ZnO, TiO₂, Fe₂O₃, CaCO₃, and Na₂SiF₆) increases when the curing time from 1 to 20 days leads to forming geopolymer silicate with high thermal stability. In addition, the optimal mixing ratio between sodium silicate solution and extender pigments (ZnO, TiO₂, Fe₂O₃, CaCO₃, and Na₂SiF₆) is as follows: 25% binder (sodium silicate solution), 8% ZnO; 5% TiO₂, 5% Fe₂O₃, 1% Na₂SiF₆, 21% CaCO₃, 34% H₂O, and 1% additives to make high heat resistance silicate coating with temperature resistance at 1000°C.

中文翻译：

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硅酸钠溶液与增量颜料的化学相互作用研究高耐热性硅酸盐涂层的研究

硅酸盐涂料是一种水性涂料，具有许多优点，并在许多不同的行业中得到广泛应用。但是，硅酸盐涂层仍然存在一些问题：如何提高其在高温下的耐热性并延长涂层寿命。硅酸盐涂料具有高耐久性和寿命，这主要取决于硅酸盐粘合剂与增量颜料的化学相互作用。因此，我们的小组研究了硅酸钠溶液与增量颜料的地质聚合过程，以研究高耐热性硅酸盐涂料。固化时间对硅酸钠溶液与增量颜料（ZnO，TiO ₂，Fe ₂ O ₃，CaCO ₃和Na _2）之间化学相互作用的影响通过傅立叶变换红外光谱（FT-IR），热重分析（TGA）和X射线衍射（XRD）研究了SiF ₆）。随着固化时间从1天增加到20天，Si-O-Si键（1060 cm ^-1）的反对称拉伸振动向低频移动，并且Si-O-Si拉伸强度增加。增量颜料（ZnO，TiO ₂，Fe ₂ O ₃，CaCO ₃和Na ₂ SiF ₆）与硅酸钠溶液之间的化学相互作用。此外，ZnO-硅酸盐，TiO _2-硅酸盐，CaCO _3-硅酸盐，Na ₂ SiF的TG结果固化1天和20天后的₆硅酸盐和Fe ₂ O ₃硅酸盐涂层在800°C下显示约69-90％的高残留地质聚合物。因此，我们提出当固化时间从1天到20天导致形成硅酸盐地质聚合物时，硅酸钠溶液与增量颜料（ZnO，TiO ₂，Fe ₂ O ₃，CaCO ₃和Na ₂ SiF ₆）之间的地聚过程增加了。具有高的热稳定性。另外，硅酸钠溶液和增量颜料（ZnO，TiO ₂，Fe ₂ O ₃，CaCO ₃和Na _2）之间的最佳混合比例SiF ₆）如下：25％的粘合剂（硅酸钠溶液），8％的ZnO；SiF ₆）如下。5％的TiO ₂，5％的Fe ₂ ö ₃，1％的Na ₂的SiF ₆，21％的CaCO ₃，34％H ₂ O，和1种％的添加剂，使高耐热性硅酸盐涂层电阻随着温度在1000℃。