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Continuous Additive Manufacturing using Olefin Metathesis

Journal Article · · Advanced Science

Abstract

The development of chemistry is reported to implement selective dual‐wavelength olefin metathesis polymerization for continuous additive manufacturing (AM). A resin formulation based on dicyclopentadiene is produced using a latent olefin metathesis catalyst, various photosensitizers (PSs) and photobase generators (PBGs) to achieve efficient initiation at one wavelength (e.g., blue light) and fast catalyst decomposition and polymerization deactivation at a second (e.g., UV‐light). This process enables 2D stereolithographic (SLA) printing, either using photomasks or patterned, collimated light. Importantly, the same process is readily adapted for 3D continuous AM, with printing rates of 36 mm h –1 for patterned light and up to 180 mm h –1 using un‐patterned, high intensity light.

Sponsoring Organization:
USDOE
OSTI ID:
1854418
Alternate ID(s):
OSTI ID: 1854646
OSTI ID: 1855818
Journal Information:
Advanced Science, Journal Name: Advanced Science Journal Issue: 14 Vol. 9; ISSN 2198-3844
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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