着色颜料浓度对硅橡胶赝复材料光谱反射率的影响  

Effects of pigment concentration on spectral reflectance of pigmented silicone elastomer

作　　者：苏方[1] 赵铱民[1] 吴国锋[1] 潘景光[1] 廖宁放[2] 杨涛[2] 

机构地区：[1]西安第四军医大学口腔医院修复科,710032 [2]北京理工大学颜色科学与工程国家专业实验室

出　　处：《实用口腔医学杂志》2006年第3期353-356,共4页Journal of Practical Stomatology

摘　　要：目的：探讨着色颜料浓度与硅橡胶赝复材料光谱反射率的关系。方法：以MDX-4-4210硅橡胶为基质，选用经分离、纯化的油画类颜料作为添加颜料，制备镉红、镉黄、蓝、褐、钛白和铁黑6个系列的单色梯度浓度样品和靶目标样（肤色色样），用FMC-9204型光谱测色仪分别采集6种单色梯度浓度样和靶目标样的光谱反射比。结果：在600～700nm红色光谱段，镉红样本反射比随镉红浓度增大而减小；在550—600nm黄色光谱段，镉黄样本反射比随镉黄浓度增大而减小；蓝色样本光谱曲线则在相应的430～500nm蓝色光谱段呈现上述趋势。在褐、钛白、和铁黑光谱反射比曲线中，反射比曲线分布平坦；其中钛白反射比分布最高，黑色分布最低。靶目标样光谱反射比曲线在500nm之后上扬。结论：6个单色颜料系列的光谱反射比随颜料浓度加深，呈现较好的递减规律。靶目标样随肤色色样的加深，光谱反射比呈现下降的趋势。Objective ：To evaluate the effects of pigment concentration on spectral reflectance of pigmented silicone elastomer. Methods. Six kinds of pigment at different concentrations was respectively added into MDX-4-4210 silicone elastomer to prepare six series of single-chroma-samples, including red, yellow, blue, brown, white and black. The pigment concentrations to base elastomer were set at 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,0.7, 0.8, 0.9 and 1.0C, respectively while other conditions were kept the same. C is the maximum pigment concentration in practical use. The target samples were also prepared. By spectrophotometer, the spectral data of the single-ehroma-samples and target samples were measured. Results：With the increase of pigment concentration, the spectral reflectance of the six series of single-chroma-samples and target samples decreased. Conclusion ： Increase of pigment concentration may result in decrease of spectral reflectance of single-chroma-samples and taget samples.

关 键 词：硅橡胶 光谱反射率 分光光度计 

分 类 号：R783.1[医药卫生—口腔医学]