Thermoset powder coating wastes as filler in LDPE - Characterization of mechanical, thermal and morphological properties
POLYMER TESTING, vol.93, 2021 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 93
- Publication Date: 2021
- Doi Number: 10.1016/j.polymertesting.2020.106897
- Journal Name: POLYMER TESTING
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
- Keywords: Powder coating, Recycling, Polyethylene, Extruder, Injection molding, Mechanical properties, Low-velocity impact
- Dokuz Eylül University Affiliated: No
Abstract
In this study, three different electrostatic powder coating wastes of thermoset structure were used as fillers for low-density polyethylene (LDPE). The mechanical, thermal, and morphological properties of these composites materials are reported. The thermoset powder coating wastes were hydrolyzed using water and alcohol, and then 10%, 20%, and 30% by weight of the deactivated wastes were mixed with LDPE, first in a mechanical dry mixer, and subsequently homogenized by melt compounding in an extruder at about 160 degrees C. Standard tensile test bars and plate-shaped samples were produced from these homogeneous compounds by injection molding. The effects of adding hydrolyzed powder coating wastes on the properties of LDPE were determined by mechanical, thermal, and morphological tests. Tensile strength and perforation threshold of the sample filled with powder coating wastes decreased to some extent compared to un-filled sample. However, an increase in izod impact and bending strengths has been observed. The results of this investigation demonstrate that powder coating wastes with thermoset structure can be used as fillers in LDPE.