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Development of combinatorial chemistry methods for coatings: High-throughput optimization of curing parameters of coatings libraries

机译：涂料组合化学方法的发展：涂料库固化参数的高通量优化

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An automated analytical system has been implemented for the high-throughput optimization of processing conditions such as curing parameters in fabrication of UV-cured automotive organic protective coatings. Selection of optimum process conditions of combinatorial arrays of coatings is essential to correlate the high-throughput screening and conventional processes and to achieve the desired physical properties of coatings. For monitoring of curing conditions of each coating in the array, a viscosity-sensitive fluorophore 4,4'-bis(2-benzoxazolyl)stilbene was incorporated into coating formulations. This fluorescence tagging approach permitted us to combine a gradient temperature heater and a UV curing system with the full capabilities of our high-throughput screening system, including generation of spectroscopic data and its analysis. This investigation demonstrated the possibility of rapid decoupling of temperature and radiation effects in curing of UV-curable coating formulations by using multiple coatings and process conditions at once. While the system described here was implemented for high-throughput optimization of temperature conditions of radiation curing of arrays of organic protective coatings for automotive applications, this system can be further applied for a variety of other applications where optimization of process parameters can be studied in situ or off-line using optical spectroscopic tools. [References: 36]
机译：已经实现了自动化分析系统，用于高通量优化加工条件，例如制造UV固化的汽车有机保护涂层时的固化参数。选择涂层组合阵列的最佳工艺条件对于将高通量筛选与常规工艺相关联并实现所需的涂层物理性能至关重要。为了监测阵列中每个涂层的固化条件，将粘度敏感的荧光团4,4'-双（2-苯并恶唑基）二苯乙烯掺入涂料配方中。这种荧光标记方法使我们能够将梯度温度加热器和UV固化系统与高通量筛选系统的全部功能结合在一起，包括光谱数据的生成及其分析。这项研究表明，通过同时使用多种涂料和工艺条件，在紫外线固化涂料配方的固化过程中，温度和辐射效应快速脱钩的可能性。虽然此处描述的系统是针对汽车应用中的有机保护涂层阵列的辐射固化温度条件进行高通量优化而实施的，但该系统仍可进一步应用于可在现场研究工艺参数优化的多种其他应用中或使用光学光谱仪离线。 [参考：36]

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