Abstract: The method for low temperature microencapsulation of phase change materials or other components includes the following steps: (a) preparing a phase change emulsion including droplets of at least one active phase-change material in water with a surfactant; (b) adding a monomer of at least one encapsulating agent; (c) introducing the phase change emulsion into a UV reactor while stirring the emulsion; and (d) initiating the photo polymerization of monomers using at least one UV lamp inside the UV reactor for photo polymerization until the phase change material is encapsulated within a polymeric shell to form microcapsules. The microcapsules obtained by this process may have a diameter between about 0.5 to about 2 ?m. Other sizes can also be obtained by changing stirring speed of the emulsion.
Type:
Grant
Filed:
August 31, 2016
Date of Patent:
February 9, 2021
Assignees:
QATAR UNIVERSITY, COLLEGE OF THE NORTH ATLANTIC-QATAR, AUCKLAND UNISERVICES LIMITED
Inventors:
Mohammed Farid, Refat Al Shannaq, Shaheen Al-Muhtaseb, Jamal Kurdi
Abstract: The method for low temperature microencapsulation of phase change materials or other components includes the following steps: (a) preparing a phase change emulsion including droplets of at least one active phase-change material in water with a surfactant; (b) adding a monomer of at least one encapsulating agent; (c) introducing the phase change emulsion into a UV reactor while stirring the emulsion; and (d) initiating the photo polymerization of monomers using at least one UV lamp inside the UV reactor for photo polymerization until the phase change material is encapsulated within a polymeric shell to form microcapsules. The microcapsules obtained by this process may have a diameter between about 0.5 to about 2 ?m. Other sizes can also be obtained by changing stirring speed of the emulsion.
Type:
Application
Filed:
August 31, 2016
Publication date:
August 9, 2018
Applicants:
College of the North Atlantic - Qatar, The University of Auckland, Qatar University
Inventors:
Mohammed FARID, Refat AL SHANNAQ, Shaheen AL-MUHTASEB, Jamal KURDI