Synthesis and Characteristics of Eco-Friendly 3D Printing Material Based on Waterborne Polyurethane.
Synthesis and Characteristics of Eco-Friendly 3D Printing Material Based on Waterborne Polyurethane.
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DOI：
10.3390/polym13010044
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发表时间：
2020-12-24
期刊：
影响因子：
5
通讯作者：
Huh P
中科院分区：
文献类型：
--
作者：
Bae JH;Won JC;Lim WB;Min JG;Lee JH;Kwon CR;Lee GH;Huh P
使用设计的水性聚丙烯酸酯（WPUA）配方成功打印光固化3D建筑。以聚己内酯二醇（PCL）和4，4 ′-亚甲基二环己基二异氰酸酯（H12 MDI）为软段，二羟甲基丁酸（DMBA）为乳化剂，三乙胺（TEA）为中和剂，合成了WPUA系列预聚体。WPUA与光活化丙烯酸单体的相容性是保证3D数字光处理（DLP）打印高分辨率的关键因素。通过使用三丙烯酸酯单体代替二丙烯酸酯衍生物来调整优化的共混配方。为了实现3D DLP打印的高精度和精细特性，WPUA被设计为适合385 nm波长光源的分子结构，目标粘度在150至250 Cp范围内。基于WPUA的光固化3D结构具有良好的抗弯强度和高分辨率。
Photo-cured 3D architectures are successfully printed using the designed waterborne polyurethane-acrylate (WPUA) formulation. A WPUA series is synthesized in the presence of polycaprolactone diol (PCL) and 4,4′-methylene dicyclohexyl diisocyanate (H12MDI) as the soft segment part, dimethylolbutanoic acid (DMBA) as the emulsifier, and triethylamine (TEA) as the neutralizer, as a function of prepolymer molecular weight. The compatibility of WPUA and the photo-activating acryl monomer is as a key factor to guarantee the high resolution of 3D digital light processing (DLP) printing. The optimized blending formulations are tuned by using triacrylate monomers instead of diacrylate derivatives. For the high-accuracy and fine features of 3D DLP printing, WPUA are designed to be a suitable molecular structure for a 385 nm wavelength source, and the target viscosity is achieved in the range from 150 to 250 Cp. Photo-cured 3D architectures based on WPUA exhibit good flexural strength and high resolution.
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影响因子：
2.3
作者：
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通讯作者：
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影响因子：
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影响因子：
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