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Effect of a Small A...
Effect of a Small Amount of Thermoplastic Starch Blend on the Mechanical Recycling of Conventional Plastics
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- Åkesson, Dan, 1970- (författare)
- Högskolan i Borås,Akademin för textil, teknik och ekonomi
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- Kuzhanthaivelu, Gauthaman (författare)
- Swedish Centre of Resource Recovery, University of Borås, 501 90, Borås, Sweden
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- Bohlén, Martin (författare)
- RISE,Polymera material och kompositer,Rise Research Institutes of Sweden, Molndal, Sweden
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(creator_code:org_t)
- 2020-10-24
- 2021
- Engelska.
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Ingår i: Journal of Polymers and the Environment. - : Springer. - 1566-2543 .- 1572-8919. ; 29, s. 985-991
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Abstract
Ämnesord
Stäng
- The usage of bioplastics could increase in the future which may cause contamination of the waste streams of conventional plastics. The objective of this study was to investigate if a small amount of biopolymer contaminating conventional polymers would significantly affect mechanical and thermal properties. A starch-based plastic was first compounded by blending plasticised starch with PLA (polylactic acid). This polymer blend was subsequently compounded with HDPE (high density polyethylene), PP (polypropylene) or PET (polyethylene terephthalate) at 0%, 1% and 5% of the biopolymer. The compounds were characterised by tensile tests, Charpy impact tests, DSC (differential scanning calorimetry) and FESEM (field emission scanning electron microscopy). Tests showed that PE and PP were not significantly affected in terms of tensile strength and modulus but the elongation at break showed a strong reduction. PET was, on the other hand, incompatible with the starch-based plastic. Already at 1% contamination, PET had lost most of its impact strength. © 2020, The Author(s).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- Bioplastics
- Contamination
- Mechanical recycling
- Aliphatic compounds
- Biomolecules
- Biopolymers
- Blending
- Charpy impact testing
- Compounding (chemical)
- Differential scanning calorimetry
- Elastomers
- Field emission microscopes
- High density polyethylenes
- Impact strength
- Plastic bottles
- Plastic recycling
- Polymer blends
- Polypropylenes
- Reinforced plastics
- Scanning electron microscopy
- Starch
- Tensile strength
- Tensile testing
- Conventional polymers
- Dsc(differential scanning calorimetry)
- Elongation at break
- Field emission scanning electron microscopy
- Mechanical and thermal properties
- Plasticised starch
- Thermoplastic starch
- Polyethylene terephthalates
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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