Spray Synthesis of Photonic Crystal Based Automotive Coatings with Bright and Angular-Dependent Structural Colors

Wan Chuan; Li Xi; Schafer Christian C.; Hirseman Stefan; Ge Jianping

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Spray Synthesis of Photonic Crystal Based Automotive Coatings with Bright and Angular-Dependent Structural Colors

机译：用明亮和依赖性结构颜色喷涂光子晶体涂层的合成

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It is a challenge to prepare photonic crystal (PC) automotive coatings via spraying colloidal solutions because the fast fabrication tends to produce amorphous photonic crystals with faint colors. Here, a two-step spraying process followed by thermal curing is developed to prepare waterproof PC coatings with bright, uniform, and angular-dependent structural colors. The solvents in PC paint are studied to achieve a quick formation of liquid PC intermediate, which transformed into a highly crystalline PC coating. Thanks to the narrow and intense reflections, the as-made coatings present colors with high saturation, including the red/yellow/green/blue colors achieved by tuning the particle size, and many spectral/non-spectral colors via the mixing of base colors. Meanwhile, patterned or fully covered PC coatings with good chemical and mechanical stability can be prepared on different substrates, where the shiny colors changing with the viewing angles or the surface curvatures offer a new choice for personalized automotive coatings.

机译：通过喷涂胶体溶液制备光子晶体（PC）汽车涂层是一项挑战，因为快速制造趋于产生具有微弱颜色的无定形光子晶体。这里，开发出热固化的两步喷涂过程，以制备具有明亮，均匀和依赖性结构颜色的防水PC涂层。研究了PC涂料中的溶剂，以实现快速形成液体PC中间体，其转化为高度结晶的PC涂层。由于狭窄和强烈的反射，所制作的涂料具有高饱和度的颜色，包括通过调节粒度和许多光谱/非光谱颜色来实现的红色/黄色/绿色/蓝色通过基色的混合来实现。同时，可以在不同的基板上制备具有良好化学和机械稳定性的图案化或完全覆盖的PC涂层，其中闪亮的颜色随着观察角或表面曲线而改变的闪亮颜色为个性化汽车涂层提供了新的选择。

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来源
《Advanced Functional Materials》 |2021年第9期|2008601.1-2008601.11|共11页
作者
Wan Chuan; Li Xi; Schafer Christian C.; Hirseman Stefan; Ge Jianping;
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作者单位

East China Normal Univ Shanghai Key Lab Green Chem & Chem Proc Sch Chem & Mol Engn Shanghai 200062 Peoples R China;

BASF Adv Chem Co Ltd Coatings Appl Res Asia Pacific Shanghai 200137 Peoples R China;

BASF Adv Chem Co Ltd Coatings Appl Res Asia Pacific Shanghai 200137 Peoples R China;

BASF Adv Chem Co Ltd Coatings Appl Res Asia Pacific Shanghai 200137 Peoples R China;

East China Normal Univ Shanghai Key Lab Green Chem & Chem Proc Sch Chem & Mol Engn Shanghai 200062 Peoples R China;

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原文格式 PDF
正文语种 eng
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关键词
automotive coating; photonic crystal; spray; structural color;

机译：汽车涂层;光子晶体;喷雾;结构颜色;

Spray Synthesis of Photonic Crystal Based Automotive Coatings with Bright and Angular-Dependent Structural Colors

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