Morphology, mechanical properties, and durability of poly(lactic acid) plasticized with Di(isononyl) cyclohexane-1,2-dicarboxylate

Wang, Ruyin, Wan, Chaoying, Wang, Shifeng and Zhang, Yong (2009) Morphology, mechanical properties, and durability of poly(lactic acid) plasticized with Di(isononyl) cyclohexane-1,2-dicarboxylate. Polymer Engineering & Science, 49 (12). pp. 2414-2420. ISSN 0032-3888

Full text not available from this repository. (Request a copy)
Official URL: http://dx.doi.org/10.1002/pen.21490

Abstract

Di(isononyl) cyclohexane-1,2-dicarboxylate (DINCH) was used as a new plasticizer for poly(lactic acid) (PLA), and the effects of DINCH and tributyl citrate ester (TBC) on the morphology, mechanical and thermal properties, and durability of PLA were compared. DINCH has limited compatibility with PLA, leading to PLA/DINCH blends with phase separation in which DINCH forms spherical dispersed phase. TBC is compatible with PLA and evenly distributed in PLA. Plasticized PLA with 10 and 20 phr DINCH have a constant glass transition temperature (Tg) of 50°C and are stiff materials with high elongation at break and impact strength. TBC could significantly decrease the Tg and increase the crystallinity of PLA, and PLA/TBC (100/20) blend is a soft material with a Tg of 24°C. The durability of plasticized PLA was characterized by weight loss measurement under water immersion, mechanical properties, and thermal analysis. The results reveal that PLA/DINCH blends have better water resistance and aging resistance properties than PLA/TBC blends, which is attributed to the relatively high hydrophobicity of DINCH and high Tg of PLA/DINCH blends.

Item Type: Article
Subjects: H700 Production and Manufacturing Engineering
W200 Design studies
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 13 Dec 2011 15:07
Last Modified: 10 Aug 2015 11:25
URI: http://nrl.northumbria.ac.uk/id/eprint/4072

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence