2. Modification of final properties
2.1 Justify the extra cost due to biopolyester density
Biopolyesters are materials with a density greater than 1. In the most common case to date, PLA, the density is even 1.25... Comparing these densities with those of polyolefins reveals a cost premium. However, all hope is not lost, for two main reasons:
polystyrene expansion technologies have been adapted to biopolyesters, enabling reductions in bulk density of over 50% to be achieved;
in the case of PLA, we're dealing with a very rigid material, favoring thickness reduction policies.
The implementation of biopolyesters is therefore an opportunity to launch a coherent sustainable development policy (reduction of...
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Modification of final properties
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Acronyms and abbreviations
PBAT: PolyButylene (Adipate-co-Terephthalate)
PBS: PolyButyleneSuccinate
PE: Polyethylene
PET: PolyEthyleneTerephthalate
PHAs: PolyHydroxyAlcanoates
PHB: PolyHydroxyButyrate
PHBV: PolyHydroxy (Butyrate-co-Valerate)
PLA: PolyLactic Acid...
Glossary
kDa
Kilo Dalton ~ kilo gram/moles
Master batch
Concentrate in granulated form containing active ingredients to achieve specific desired performance benefits, either in the manufacture of products or in the finished products themselves.
Meltstrengthenhancer
Additives to increase the viscosity and toughness...
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