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Composites Based Green Poly(L-Lactic Acid) and Dioctyl Phthalate: Preparation and Performance
- Source :
- Advances in Materials Science and Engineering, Vol 2015 (2015)
- Publication Year :
- 2015
- Publisher :
- Hindawi Publishing Corporation, 2015.
-
Abstract
- The effects of dioctyl phthalate (DOP) on performances of poly(L-lactic acid) (PLLA) were investigated in detail using optical depolarizer, X-ray diffraction, melt index instrument, and electronic tensile tester. Crystallization performance showed that the half time of overall PLLA crystallizationt1/2decreased with increasing of crystallization temperature (80°C to 105°C), but thet1/2of PLLA/DOP composites firstly decreased and then increased, andt1/2of PLLA/DOP exhibited minimum value at 85°C. Compared to neat PLLA, 20%DOP made thet1/2decrease from 7258.3 s to 265.4 s. X-ray diffraction experiment further confirmed that DOP could accelerate the crystallization of PLLA. The fluidity of PLLA/DOP composites indicated that the melt mass flow rate firstly decreased and then greatly increased with increasing of DOP content. The mechanical performance showed that DOP could improve the general mechanical performance, and the elongation at break of PLLA/25%DOP was about 30 times longer than that of neat PLLA.
- Subjects :
- Poly l lactic acid
Materials science
Article Subject
General Engineering
Phthalate
law.invention
Crystallization temperature
chemistry.chemical_compound
chemistry
law
lcsh:TA401-492
lcsh:Materials of engineering and construction. Mechanics of materials
General Materials Science
Elongation
Crystallization
Composite material
Tensile testing
Half time
Melt flow index
Subjects
Details
- Language :
- English
- ISSN :
- 16878434
- Database :
- OpenAIRE
- Journal :
- Advances in Materials Science and Engineering
- Accession number :
- edsair.doi.dedup.....58a8e2aae332a9197eeda4c3c2a1e35a
- Full Text :
- https://doi.org/10.1155/2015/289725