CAJ | 학술논문

以FeCl3、N H3· H2 O和正硅酸四乙酯（T EOS ）为原料，采用溶胶凝胶分步反应合成了硅铁红色料。研究了煅烧温度、硅铁比、包裹次数等工艺因素对色料红度值的影响．利用XRD、FTIR和全自动测色差计等分析手段对色料结构和呈色性能进行了表征．XRD图谱中未发现有Fe2 O3或Fe3 O4的衍射峰，表明铁离子被包裹在二氧化硅晶体内，采用本方法所合成的硅铁红色料具有较好的包裹效果．FTIR分析结果也进一步证实了二氧化硅对铁红色料的包裹．同时，色料的红度值随着煅烧温度的升高呈先增大后减小的趋势，900℃煅烧的色料具有最大红度值，a倡＝22．89，比传统固相法合成色料的最佳煅烧温度降低了200℃；随着硅铁比的增大，色料的红度值仍出现先增大后减小趋势，硅铁比等于5∶1红度值最大；随着包裹次数的增加，SiO2的包裹层逐渐增厚，色料的红度值逐渐减小，而明度值逐渐增大．
이FeCl3、N H3· H2 O화정규산사을지（T EOS ）위원료，채용용효응효분보반응합성료규철홍색료。연구료단소온도、규철비、포과차수등공예인소대색료홍도치적영향．이용XRD、FTIR화전자동측색차계등분석수단대색료결구화정색성능진행료표정．XRD도보중미발현유Fe2 O3혹Fe3 O4적연사봉，표명철리자피포과재이양화규정체내，채용본방법소합성적규철홍색료구유교호적포과효과．FTIR분석결과야진일보증실료이양화규대철홍색료적포과．동시，색료적홍도치수착단소온도적승고정선증대후감소적추세，900℃단소적색료구유최대홍도치，a창＝22．89，비전통고상법합성색료적최가단소온도강저료200℃；수착규철비적증대，색료적홍도치잉출현선증대후감소추세，규철비등우5∶1홍도치최대；수착포과차수적증가，SiO2적포과층축점증후，색료적홍도치축점감소，이명도치축점증대．
The Fe2 O3‐SiO2 red pigments were synthesized by sol‐gel step reaction using FeCl3 ,NH3 · H2 O and TEOS as raw materials .The influence of calcinations temperature , Si/Fe ratio and inclusion number on red value of the pigments were studied .The structure and color performance of the pigments were characterized by XRD ,FTIR and color measure‐ment .The results show that Fe ions are wrapped in silica matrix .It is because the diffraction peaks of Fe2 O3 or Fe3 O4 in XRD analysis are not detected ,w hich explain that ferrosilicon red pigment prepared by sol‐gel step reaction has highly inclusion effect .The FTIR results also confirm that Fe2 O3 red pigments are wrapped by SiO2 matrix .Meanwhile ,with the raising of the calcinations temperature ,red value of the pigments increased first and then decreased . When calcinations temperature is at 900 ℃ ,the red value of the pigments is highest and a* =22 .89 .Comparing with conventional solid state route ,optimum calcinations temperature for synthesized Fe2 O3‐SiO2 red pigments reduces 200 ℃ .With the increasing of the Si/Fe ,red value of the pigments has the same tendency with calcinations temperature .When Si/Fe is 5 , the red value of the pigment is highest .Moreover ,with the increasing of inclusion number , the silica integuments of the pigment gradually increase ,so that lightness value of the pig‐ment increase and the red value decrease .