Publication: Influence of talc particle size and content on crystallization behavior, mechanical properties and morphology of poly(lactic acid)
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Issued Date
2014
Resource Type
File Type
application/pdf
ISSN
1700839
Other identifier(s)
2-s2.0-84904462876
Rights Holder(s)
Scopus
Bibliographic Citation
Polymer Bulletin. Vol 71, No.8 (2014), p.1947-1959
Suggested Citation
Petchwattana N., Covavisaruch S., Petthai S. Influence of talc particle size and content on crystallization behavior, mechanical properties and morphology of poly(lactic acid). Polymer Bulletin. Vol 71, No.8 (2014), p.1947-1959. doi:10.1007/s00289-014-1165-7 Retrieved from: https://hdl.handle.net/20.500.14740/6278
Author(s)
Abstract
This research aimed to employ inorganic filler such as talc to promote crystallization in poly(lactic acid) (PLA). Three different talc particle sizes, namely 1, 5 and 30 μm, were used as nucleating agents; each was compounded with PLA at various contents from 0 to 10 wt%. The crystallization temperature (Tc) reduced most rapidly from 128 to 107°C with the presence of 1 wt% talc. Beyond this concentration, the Tc still decreased but only minutely. Compared to other sizes, finer talc particles were found to promote a slightly higher degree of crystallinity. X-ray diffraction peaks indicated that the α-crystal was formed in all PLA/talc compositions. The heat distortion temperature values suggested that the modified PLA could resist the thermal deformation from 58°C to a maximum value of 139°C when 1 μm talc was added at 10 wt%. With the presence of talc, the composites were more brittle and both tensile elongation at break and impact strength were decreased. © 2014 Springer-Verlag Berlin Heidelberg.
Subject(s)
Crystallization
Mechanical properties
Particle size
Polymer matrix composites
Polypropylenes
Thermodynamic properties
X ray diffraction
Crystallization behavior
Crystallization temperature
Degree of crystallinity
Heat distortion temperature
Nucleating agents
Polymer Matrix Composites (PMCs)
Tensile elongation
Thermal deformation
Talc
Mechanical properties
Particle size
Polymer matrix composites
Polypropylenes
Thermodynamic properties
X ray diffraction
Crystallization behavior
Crystallization temperature
Degree of crystallinity
Heat distortion temperature
Nucleating agents
Polymer Matrix Composites (PMCs)
Tensile elongation
Thermal deformation
Talc