Abstract
A novel waterborne ambient self-crosslinkable emulsifier-free core–shell polyacrylate emulsion (EC-PAE) has been successfully prepared by emulsifier-free seeded emulsion polymerization. Some key factors in polymerization were investigated systematically. The core–shell particles morphology, distribution and compositions have been measured by transmission electron microscopy, dynamic light scattering and FT-IR spectra, respectively. During preparation of film or coatings, the polyacrylate emulsion (EC-PAE) could cure fast at ambient temperatures due to the cross-linking reaction between keto-carbonyl in diacetone acrylamide and adipic acid dihydrazide (ADH). Furthermore, EC-PAE has been applied to a new kind of two-component air-dried waterborne coatings with addition of ADH, which afforded the ambient-temperature curable waterborne coatings (EC-PAE-C). The basic properties of the novel waterborne coatings meet the national standard of architectural indoor coatings, especially in hardness, gloss, viscosity and water resistance. It is also found that the coatings exhibit a large capacity for water absorption (260 %), increasing indoor humidity and dehumidification in dry or moist environments.
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.
