Abstract
Aluminum-oxide-hydroxide (AlOOH) is a clean and non-toxic flame retardant. There have been many trials for the fabrication of ultrafine AlOOH. Two main approaches exist for nano-AlOOH synthesis: reactive precipitation and batch hydrothermal synthesis. Both approaches are laborious and time consuming with poor control of particle morphology. We report on the novel continuous flow manufacture of AlOOH nanorods with controlled morphology (particle size and shape) by hydrothermal synthesis. AlOOH was harvested from its mother liquor (colloidal solution) using poly(acrylamide-co-acrylic acid) copolymer as a flocculating agent. The developed AlOOH shape and size, crystalline phase, thermal stability, and endothermic heat sink action were investigated by transmission electron microscopy, X-ray diffractometry, thermogravimetric analysis, and differential scanning calorimetry, respectively. The phase transition of AlOOH to Al2O3 was demonstrated by conducting different X-ray diffractometry scans from 400 to 700°C. These results may provide an option for the continuous synthesis of nano-AlOOH as a clean and non-toxic flame retardant with excellent thermal stability. Consequently, enhanced flammability properties can be achieved at low solids loading.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
