Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/13521
ชื่อเรื่อง: Crystallisation behaviour and transparency of poly(lactic acid) nucleated with dimethylbenzylidene sorbitol
ผู้แต่ง: Petchwattana N.
Naknaen P.
Sanetuntikul J.
Narupai B.
Keywords: Alcohols
Biodegradable polymers
Crystallization
Lactic acid
Tensile strength
Clarifying agents
Crystallisation behaviours
Degree of crystallinity
Dimethyl-benzylidene sorbitol
Morphological properties
Nucleating agents
Poly lactic acid
Polylactic acids
Glass transition
วันที่เผยแพร่: 2018
บทคัดย่อ: In this paper, dimethylbenzylidene sorbitol (DMBS) was applied to poly(lactic acid) (PLA) as a nucleating and clarifying agents. Eight level concentrations, from 0.25 to 10 wt-%, were added and measured some changes in the thermal, mechanical, physical and morphological properties. Experimental results revealed that the nucleated PLA crystallised earlier together with the reductions of the crystallisation temperature (Tc) at all DMBS concentrations, while the glass transition temperature (Tg) reduced by around 10°C. The degree of crystallinity (Xc) increased from 1.48 to 16.6% corresponding to the decreased crystallisation time (tc) from more than 40 to less than 5 min at 100°C. The nucleated PLA maintained its clarity at all DMBS concentrations, with reductions of the haze value from around 36–29%. The tensile modulus and tensile strength increased slightly with the content of DMBS up to 1.5 wt-%. Beyond this content, they dropped slightly. © 2018 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.
URI: https://ir.swu.ac.th/jspui/handle/123456789/13521
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85043719831&doi=10.1080%2f14658011.2018.1447338&partnerID=40&md5=d29ca6d7f896f74f9683b2d543b54759
ISSN: 14658011
Appears in Collections:Scopus 1983-2021

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