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Toward "Green" Hybrid Materials: Core-Shell Particles with Enhanced Impact Energy Absorbing Ability.
Veluska Arias1, Jeremy Odent2, Jean-Marie Raquez2,3
1Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
ACS Sustainable Chemistry & Engineering
|March 6, 2018
Summary
Researchers developed novel core-shell particles using poly(lactic acid) stereocomplex and poly(ε-caprolactone-co-d,l-lactide) to create advanced green composite materials with enhanced properties.
Area of Science:
- Polymer Science
- Materials Science
- Green Chemistry
Background:
- Growing demand for sustainable and degradable materials.
- Need for advanced composite materials with improved mechanical properties.
- Limitations of current "green" polymers in terms of performance.
Purpose of the Study:
- To create novel core-shell (CS) impact modifiers for "green" composite materials.
- To investigate the thermo-mechanical effects of CS particles on PLA-based composites.
- To develop a scalable method for producing these advanced degradable materials.
Main Methods:
- Synthesis of core-shell particles using spray droplet atomization.
- Incorporation of CS particles into PLA matrices.
- Characterization of the resulting composite materials' properties.
Main Results:
- Successfully synthesized core-shell particles composed of PLA stereocomplex (PLASC) and P[CL-co-LA].
- CS particles acted as nucleating agents, enhancing PLA matrix crystallization.
- CS particles improved impact resistance without significantly compromising stiffness or strength.
Conclusions:
- Synergistic interaction between soft and hard domains in CS particles yields unique thermo-mechanical effects.
- Developed a new platform for scalable design of advanced degradable polymeric materials.
- Demonstrated the efficacy of CS particles as impact modifiers for green composites.