Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 47, Pages 26131-26136Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b07913
Keywords
suspensions; dispersant; rheology; thermosensitive; 3D printing
Funding
- National Science Foundation of China [51202296]
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
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Tailoring the rheology of suspensions is an essential and persistent issue form many applications, especially three-dimensional (3D) printing. Colloidal suspensions of ceramic powder (Al2O3) dispersed by a special thermosensitive dispersant (poly(acrylic acid) poly(N-isopropylacrylamide), PAA-PNIPAM) were designed, which underwent a remarkable fluid-gel transition in response to thermal stimulus due to the phase transition of the graft chains (-PNIPAM). 3D periodic structures with a fine size of 100 mu m were assembled by 3D printing.
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