One-step volumetric additive manufacturing of complex polymer structures.

One-step volumetric additive manufacturing of complex polymer structures.
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DOI:
10.1126/sciadv.aao5496
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发表时间:
2017-12
期刊:
影响因子:
13.6
通讯作者:
Spadaccini CM
Spadaccini CM
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Shusteff M;Browar AEM;Kelly BE;Henriksson J;Weisgraber TH;Panas RM;Fang NX;Spadaccini CM

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A new approach for ultrarapid 3D manufacturing creates complex aperiodic volumes in a single step. Two limitations of additive manufacturing methods that arise from layer-based fabrication are slow speed and geometric constraints (which include poor surface quality). Both limitations are overcome in the work reported here, introducing a new volumetric additive fabrication paradigm that produces photopolymer structures with complex nonperiodic three-dimensional geometries on a time scale of seconds. We implement this approach using holographic patterning of light fields, demonstrate the fabrication of a variety of structures, and study the properties of the light patterns and photosensitive resins required for this fabrication approach. The results indicate that low-absorbing resins containing ~0.1% photoinitiator, illuminated at modest powers (~10 to 100 mW), may be successfully used to build full structures in ~1 to 10 s.
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