Mechanical, thermal and rheological investigation of poly(lactic acid) (PLA)/poly(3-hydroxybutyrate-co-hydroxyvalerate) (PHBV) blend within its synergistic elongation effect region

被引：4

作者：

Pouriman, Hosein ^{[1
,2
]}

Lin, Richard ^{[1
]}

Graham, Kevin ^{[2
]}

Jayaraman, Krishnan ^{[1
]}

机构：

[1] Univ Auckland, Ctr Adv Composite Mat, Dept Mech & Mechatron Engn, Auckland 1142, New Zealand

[2] Friendlypak Ltd Corp, 51b Rosebank Rd, Auckland 1026, New Zealand

来源：

EXPRESS POLYMER LETTERS | 2023年 / 17卷 / 04期

关键词：

biodegradable polymers; polymer blends; and alloys; mechanical properties; PLA-PHBV blend; synergistic elon-gational effect; POLY LACTIC-ACID; BARRIER PROPERTIES; CAPILLARY-FLOW; MORPHOLOGY; POLYPROPYLENE; PLA/PHBV; PERFORMANCE; COPOLYMER; PROGRESS; SHEAR;

D O I：

10.3144/expresspolymlett.2023.27

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A mathematical Design of Experiments (DOE) was structured to consider the interactive effects of poly(lactic acid) (PLA), poly(3-hydroxybutyrate-co-hydroxyvalerate) (PHBV), triethyl citrate (TC) plasticiser, and epoxy functionalised styrene acrylate (ESA) within the synergistic elongational region of the PLA-PHBV blend (PLA/PHBV of 70/30 to 90/10 ratios). Twelve blends were prepared via twin screw extrusion process. Mixture design showed that PLA and TC content has the highest and ESA content has the lowest total effectiveness. The optimal values for the lowest cost and highest elongation at break and the elongational viscosity were reached at PLA/PHBV/plasticiser/ESA content of 0.574/0.3/0.113/0.012 wt%. Rhe-ological studies showed the blends with the highest elongational viscosity were suitable for blown film extrusion.

引用

页码：373 / 389

页数：17

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