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Thermal, Mechanical, Viscoelastic and Morphological Properties of Poly(lactic acid) based Biocomposites with Potato Pulp Powder Treated with Waxes
- Source :
- Materials, Vol 12, Iss 6, p 990 (2019), Materials, Volume 12, Issue 6, Materials (Basel) 12 (2019): 990. doi:10.3390/ma12060990, info:cnr-pdr/source/autori:Righetti M.C.; Cinelli P.; Mallegni N.; Massa C.A.; Aliotta L.; Lazzeri A./titolo:Thermal, Mechanical, Viscoelastic and Morphological Properties of Poly(lactic acid) based Biocomposites with Potato Pulp Powder Treated with Waxes/doi:10.3390%2Fma12060990/rivista:Materials (Basel)/anno:2019/pagina_da:990/pagina_a:/intervallo_pagine:990/volume:12
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- The thermal, mechanical and viscoelastic properties of biocomposites of poly(lactic acid) (PLA) with 20 wt.% of potato pulp powder were investigated. The potato pulp powder utilized is a byproduct from the production and extraction of starch. The results showed that the potato pulp powder does not act as reinforcement, but as filler for PLA, due to an unfavorable aspect ratio and the irregular shape of the particles. In order to improve the mechanical response of the PLA/potato pulp powder biocomposites, surface treatment of the potato pulp particles with bio-based and petroleum-based waxes was investigated. This treatment was found to improve the properties of the biocomposites, enhancing the adhesion between the PLA based polymeric matrix and the potato pulp fibers. The best result is obtained with a petroleum-based wax, but also the bio-based waxes lead to good mechanical properties of the biocomposite. Thus, the addition to PLA of potato pulp powder, treated with waxes, appears a method able to (i) utilize and valorize an abundant agro-food biomass such as potato pulp, according to the principles of circular economy, (ii) favor the production of articles with properties valuable for practical applications, and (iii) reduce the cost of the final products, considering the relatively high cost of PLA.
- Subjects :
- bio-based polymers
Materials science
Starch
Biomass
02 engineering and technology
engineering.material
010402 general chemistry
matrix adhesion
01 natural sciences
lcsh:Technology
Article
chemistry.chemical_compound
natural fibers
stomatognathic system
Filler (materials)
compatibilizer
General Materials Science
lcsh:Microscopy
Bio-based polymers
Biocomposites
Fiber/matrix adhesion
Natural fibers
lcsh:QC120-168.85
2. Zero hunger
Wax
biocomposites
biomass
lcsh:QH201-278.5
lcsh:T
Extraction (chemistry)
fungi
technology, industry, and agriculture
food and beverages
Adhesion
fiber/matrix adhesion
021001 nanoscience & nanotechnology
0104 chemical sciences
Lactic acid
stomatognathic diseases
chemistry
Chemical engineering
lcsh:TA1-2040
visual_art
visual_art.visual_art_medium
engineering
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
Biocomposite
0210 nano-technology
lcsh:Engineering (General). Civil engineering (General)
lcsh:TK1-9971
fiber
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 12
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....aaa8e55dfca18d4c0323eb3b8ff92bf6