Abstract
An approach to reduce cycle times in injection molding of poly (lactic acid) through the use of bio-based nucleating agents is presented. Talc is commonly used as nucleant and will be used as the reference in this study. The other investigated additives are kraft lignin, lignosulfonate, and carbon black. This is an in-depth study of certain bio-based nucleating agents for use with poly (lactic acid) under various processing conditions.
Bio-based compounds of poly (lactic acid) and different nucleating agents were produced via twin-screw extrusion. Subsequent injection molding yielded standard samples for tensile testing; cycle times were recorded during injection molding. Thermal and mechanical testing showed direct dependence upon the degree of crystallinity in the matrix polymer. The ability of certain bio-based nucleating agents (e.g. kraft lignin) to reduce the cycle time in injection molding was proven.
| Original language | English |
|---|---|
| Pages (from-to) | 6-11 |
| Number of pages | 6 |
| Journal | European Polymer Journal |
| Volume | 115 |
| DOIs | |
| Publication status | Published - Jun 2019 |
Fields of science
- 304007 Tissue engineering
- 204002 Chemical reaction engineering
- 210004 Nanomaterials
- 104 Chemistry
- 104002 Analytical chemistry
- 104011 Materials chemistry
- 104014 Surface chemistry
- 104016 Photochemistry
- 104018 Polymer chemistry
- 104008 Catalysis
- 104010 Macromolecular chemistry
- 104015 Organic chemistry
- 104019 Polymer sciences
- 106002 Biochemistry
- 107002 Bionics
- 301305 Medical chemistry
- 301207 Pharmaceutical chemistry
- 301904 Cancer research
- 302009 Chemotherapy
JKU Focus areas
- Sustainable Development: Responsible Technologies and Management