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Anongnat Somwangthanaroj. Isothermal cold-crystallization kinetics and morphology of PLA casted film with the incorporation of talc and starch. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2016.
Isothermal cold-crystallization kinetics and morphology of PLA casted film with the incorporation of talc and starch
Name: Suphattra Choksriwichit
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Chavakorn Samthong
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Anongnat Somwangthanaroj
Organization :
Chulalongkorn University. Faculty of Engineering
Email :
anongnat.s@chula.ac.th
keyword:
Cold-crystallization
LCSH:
Polylactic acid
LCSH:
Morphology
LCSH:
Polyester films
-- Reinforcement
Abstract:
Poly(lactic acid) (PLA) is an interesting biopolymer widely used in various
applications due to its high transparency, high strength, high modulus, biodegradability, and
biocompatibility. However, the crystallization rate of neat PLA is slow, limiting its usage. In
this study, talc and starch at 5 vol% were blended with PLA to improve the coldcrystallization
rate of PLA. The PLA composites were prepared by twin screw extruder
equipped with cast film equipment. Differential scanning calorimetry (DSC) and polarized
optical microscopy (POM) measurements were conducted to monitor the cold-crystallization
behavior of the composites. Primarily, dynamic DSC results showed that PLA casted film
had the cold crystallization peak (Tcc) of 114.1oC and degree of crystallinity (Xc) of 6%. It
was found that talc acted as an effective nucleating agent, accelerating the crystallization of
PLA as can be seen by a reduction of Tcc to 101.7oC and an increase of Xc to 14%. On the
other hand, starch hindered the crystallization of PLA, leading to reduced degree of
crystallinity (5%). The difference in nucleation ability of talc and starch is probably due to
their surface chemistry. Therefore, the study on crystallization kinetics with a theoretical
model will be conducted in order to confirm our hypothesis
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2016
Modified:
2023-01-05
Issued:
2023-01-05
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn and Chulalongkorn University Faculty of science. Pure and Applied Chemistry International Conference (PACCON 2016) (pp.1187-1191). Bangkok : Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.033096 วินาที
Suphattra Choksriwichit
| Title | Contributor | Type |
|---|---|---|
| Isothermal cold-crystallization kinetics and morphology of PLA casted film with the incorporation of talc and starch
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Suphattra Choksriwichit;Chavakorn Samthong;Anongnat Somwangthanaroj | บทความ/Article |
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|---|---|---|
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| Isothermal cold-crystallization kinetics and morphology of PLA casted film with the incorporation of talc and starch
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Suphattra Choksriwichit;Chavakorn Samthong;Anongnat Somwangthanaroj | บทความ/Article |
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| Isothermal cold-crystallization kinetics and morphology of PLA casted film with the incorporation of talc and starch
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Suphattra Choksriwichit;Chavakorn Samthong;Anongnat Somwangthanaroj | บทความ/Article |