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Toughening Effect of Liquid Natural Rubber on The Morphology and Thermo-Mechanical Properties of the Poly(Lactic Acid) Ternary Blend

Mohd Bijarimi, Mat Piah and Sahrim, Ahmad and A. K. M., Moshiul Alam (2017) Toughening Effect of Liquid Natural Rubber on The Morphology and Thermo-Mechanical Properties of the Poly(Lactic Acid) Ternary Blend. Polymer Bulletin, 17. pp. 3301-3317. ISSN 0170-0839(Print); 1436-2449(Online)

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Abstract

In this work, poly(lactic acid) (PLA) was melt blended with liquid natural rubber (LNR) and linear low-density polyethylene (LLDPE) to fabricate a PLA–LNR–LLDPE ternary blend. The torque rheology demonstrates the melt mixing behavior of PLA–LLDPE binary and PLA–LNR–LLDPE ternary blends. Mechanical properties of ternary blend illustrate the highest toughness as compared to neat PLA and PLA–LLDPE binary blend. Fracture morphology reveals the plastic deformation behavior in the ternary blend which is illustrated in TEM micrograph. The cold crystallization temperature of the ternary blend appears at a lower temperature as compared to the binary blend. The thermal stability of PLA is improved due to blending with LLDPE and LNR. The ternary blend exhibits greater storage modulus in the glassy state as well as in the rubbery state as compared to neat PLA and binary blend. Finally, LNR performed as an effective compatibilizer between PLA and LLDPE.

Item Type: Article
Additional Information: Indexed by Scopus; IF:1.43 JCR® Category - POLYMER SCIENCE (Q3)
Uncontrolled Keywords: BlendMechanical properties; Rheology; Morphology; Thermal properties
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 23 Aug 2017 08:16
Last Modified: 16 Jul 2018 08:11
URI: http://umpir.ump.edu.my/id/eprint/16642
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