Publication Date:
2016-07-02
Description:
Recently, we developed an efficient method for rapid drying and improving relative density of the gelcast green body. In this work, polymerization and rheological behavior of the thermoresponsive gelcasting system based on N- isopropylacrylamide were investigated. To initiate reaction of the system with 4 mL/L of catalyst, 0.25–0.5 mg/mL of initiator is considered optimal in the optimized temperature range 15–20°C. Suspensions with 40–55 vol.% solid loading still show shear-thinning behavior, which is favorable for mixing, degassing, and casting. The final storage moduli of consolidated suspensions are approximately 10 4 Pa, which is sufficiently high for gelcast green bodies.
Print ISSN:
1546-542X
Electronic ISSN:
1744-7402
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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