Stereocomplex formation of a poly(D-lactide)/poly(L-lactide) blend on a technical scale
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Boris Marx
,
Lars Bostan
Abstract
Poly(D-lactide) (PDLA) and poly(L-lactide) (PLLA), both available on the market, are blended on a technical scale. Using a special process control, the two materials are blended in a twin-screw extruder at a mass throughput rate of 2 kg/h, resulting in a stereocomplex Poly(-lactide) (PLA) blend. Thermal analysis indicates only one melting point at 235 °C. Both the Raman spectra and X-ray powder diffraction patterns show characteristic features for the stereocomplex PLA. With the available amount of this blend PLA fibers with technical strengths can be developed by melt spinning. As such, the application of the biopolymer PLA can be expanded, leading to substitute the conventional plastics for conserving both the resources and the environment.
Acknowledgements
The results presented here were obtained in the research project “High-performance PLA bico-fibers (PLA2)”. The IGF project PLA2 (AiF No. 20570 N) of the Forschungsvereinigung Werkstoffe aus nachhaltigen Rohstoffen e.V., Breitscheidstraβe 97, 07407 Rudolstadt, Germany, was funded by the German Federal Ministry of Economics and Climate Protection through the AiF within the framework of the program for the promotion of joint industrial research and development (IGF) based on a resolution of the German Bundestag. We would like to express our gratitude for this.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Experimental investigation and simulation of 3D printed sandwich structures with novel core topologies under bending loads
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- Improving the rheology of linear low-density polyethylene (LLDPE) and processability of blown film extrusion using a new binary processing aid
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- Tensile properties of sandwich-designed carbon fiber filled PLA prepared via multi-material additive layered manufacturing and post-annealing treatment
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Articles in the same Issue
- Frontmatter
- Research Articles
- Experimental investigation and simulation of 3D printed sandwich structures with novel core topologies under bending loads
- Notable electrical and mechanical properties of polyacrylamide (PAM) with graphene oxide (GO) and single-walled carbon nanotubes (SWCNTs)
- Study on the thermal stability and combustion performance of polyurethane foams modified with manganese phytate
- Improving the rheology of linear low-density polyethylene (LLDPE) and processability of blown film extrusion using a new binary processing aid
- Stereocomplex formation of a poly(D-lactide)/poly(L-lactide) blend on a technical scale
- Experimental investigation on mechanical and tribological characteristics of snake grass/sisal fiber reinforced hybrid composites
- Tensile properties of sandwich-designed carbon fiber filled PLA prepared via multi-material additive layered manufacturing and post-annealing treatment
- Non-isothermal simulation of a corner vortex within entry flow for a viscoelastic fluid
- Feasibility assessment of injection molding online monitoring based on oil pressure/nozzle pressure/cavity pressure
- Modelling of roller conveyor for the simulation of rubber tire tread extrusion
- Reactive compatibilization of polypropylene grafted with maleic anhydride and styrene, prepared by a mechanochemical method, for a blend system of biodegradable poly(propylene carbonate)/polypropylene spunbond nonwoven slice
- Effect of stacking sequence and thickness variation on the thermo-mechanical properties of flax-kenaf laminated biocomposites and prediction of the optimal configuration using a decision-making framework
- Design and manufacture of an additive manufacturing printer based on 3D melt electrospinning writing of polymer
