Rapid manufacturing via selective radio-frequencyheating and curing of thermosetting resins
Yükleniyor...
Dosyalar
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag GMBH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A new method for additive manufacturing of thermosetting resins using selective, localized radio-frequency (RF) heating and curing in a thermoset reservoir is demonstrated. The use of a local RF applicator addresses the challenge of selective curing and printing of heat-curable thermosets from a reservoir of resin, without the addition of photocurable acrylates. The filler of interest is multi-walled carbon nanotubes, which heat up rapidly in response to an RF field. A target temperature can be maintained by modulating the RF power. Multilayered structures were 3D printed by moving the RF applicator relative to the resin reservoir, selectively curing the resin exposed to the field; this process was repeated for each layer. Thermal and mechanical properties of RF-printed samples were compared against conventional samples, with both methods showing similar glass transition temperatures and storage moduli; the RF-heated samples showed a more uniform morphology with lesser voids. The 3D printing process (temperature and conversion varying in space and time) is modeled to demonstrate the scope of this method in printing complex structures. This method of multilayered additive manufacturing of thermosetting resins allows for rapid, free-form processing.
Açıklama
The authors acknowledge the Scientific and Technological Research Council of Turkey (TUBITAK) 2219-International Postdoctoral Research Fellowship Program for Turkish Citizens for their sponsorship. The authors would like to acknowledge Dr. David Truong at the Soft Matter Facility of TAMU for aiding us with TGA and DMA measurements. The authors acknowledge Dr. Yordanos Bisrat of the Materials Characterization Facility at TAMU for helping us with DSC measurements. Lastly, the authors thank the Microscopy and Imaging Center at TAMU.
Anahtar Kelimeler
Additive Manufacturing, Free-Form Processing, Radio-Frequency Heating, 3D, Polymers, Kinetics
Kaynak
Advanced Engineering Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
24
Sayı
7
Künye
Sarmah, A., Desai, S. K., Tezel, G. B., Vashisth, A., Mustafa, M. M., Arole, K., ... & Green, M. J. (2022). Rapid Manufacturing via Selective Radio‐Frequency Heating and Curing of Thermosetting Resins. Advanced Engineering Materials, 24(7), 2101351.
