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Effective Synergistic Effect of Treatment and Modification on Spent Coffee Grounds for Sustainable Biobased Composites.
- Source :
- Waste & Biomass Valorization; Feb2022, Vol. 13 Issue 2, p1339-1348, 10p
- Publication Year :
- 2022
-
Abstract
- Spent coffee grounds (SCGs) represent a huge amount of global waste whose post-use disposal triggers environmental issues. In this study, SCGs were successfully treated and modified to improve the mechanical properties of biobased composites with epoxy matrix. A two-step treatment was proposed, pretreating by a NaOH solution and modifying by maleic anhydride (MA). MA acts as a coupling agent to create the internal network in composite through the interaction between functional groups. Accordingly, MA improves the interface between phases in composite, ensures a better physical property compared to the composite without modification. Consistently, the two-step treatment depicts improved mechanical properties: flexural modulus and flexural strength increased to 3053 MPa and 45 MPa, respectively, compared to 2429 MPa and 33 MPa for composite with pure SCGs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18772641
- Volume :
- 13
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Waste & Biomass Valorization
- Publication Type :
- Academic Journal
- Accession number :
- 154814806
- Full Text :
- https://doi.org/10.1007/s12649-021-01566-z