scholarly journals Effect of blending procedures and reactive compatibilizers on the properties of biodegradable poly(butylene adipate-co-terephthalate)/poly(lactic acid) blends

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Dandan Wu ◽  
Anping Huang ◽  
Jie Fan ◽  
Renwei Xu ◽  
Peng Liu ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Tensile Properties ◽  
Phase Interface ◽  
Polymer Materials ◽  
Poly Lactic Acid ◽  
Practical Application ◽  
Biodegradable Poly ◽  
Phase Size ◽  
One Step ◽  
The One

AbstractThe effect of Joncryl ADR®-4368 (abbreviated ADR) and dicumyl peroxide (DCP) on poly(butylene adipate-co-terephthalate) (PBAT)/poly(lactic acid) (PLA) blend was investigated. Two different blending procedures were adopted: (1) one-step blending of all components for 8 min; (2) premixing of PBAT and ADR (or DCP) for 4 min followed by addition of PLA blending for 4 min. ADR and DCP were effective compatibilizers for the PBAT/PLA blend by one-step blending which were confirmed by improving the phase interface between PBAT and PLA, decreasing the dispersed phase size, increasing the elasticity, viscosity and tensile strength. Moreover, the addition of ADR into PBAT/PLA blend by two-step blending was more efficient than the one-step blending based on refined morphology and further increased tensile properties. The two-step blending was beneficial to produce a larger amount of PBAT-graft-PLA (PBAT-g-PLA) copolymers at the phase interface. However, DCP was added to the PBAT/PLA blend by the two-step blending which showed lower properties than one-step blending. DCP triggered free branching reactions in a fast way. Based on the character of compatibilizers, choosing properly blending procedures can enlarge the tensile properties. These results would be interesting for industrial polymer materials, and may be importance to the wider practical application of PBAT/PLA blends.

scholarly journals Recent advances in compatibility and toughness of poly(lactic acid)/poly(butylene succinate) blends

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 793-810
Author(s):  
Xipo Zhao ◽  
Dianfeng Zhang ◽  
Songting Yu ◽  
Hongyu Zhou ◽  
Shaoxian Peng
Keyword(s):  
Lactic Acid ◽  
Chemical Modification ◽  
Phase Interface ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Modification Method ◽  
Improvement Effect ◽  
Biodegradable Poly ◽  
High Elongation ◽  
Physical And Chemical

Abstract Poly(butylene succinate) (PBS) has good impact strength and high elongation at break. It is used to toughen biodegradable poly(lactic acid) (PLA) materials because it can considerably improve the toughness of PLA without changing the biodegradability of the materials. Therefore, this approach has become a hotspot in the field of biodegradable materials. A review of the physical and chemical modification methods that are applied to improve the performance of PLA/PBS blends based on recent studies is presented in this article. The improvement effect of PLA/PBS blends and the addition of some common fillers on the physical properties and crystallization properties of blends in the physical modification method are summarized briefly. The compatibilizing effects of nanofillers and compatibilizing agents necessary to improve the compatibility and toughness of PLA/PBS blends are described in detail. The chemical modification method involving the addition of reactive polymers and low-molecular-weight compounds to form cross-linked/branched structures at the phase interface during in situ reactions was introduced clearly. The addition of reactive compatibilizing components is an effective strategy to improve the compatibility between PLA and PBS components and further improve the mechanical properties and processing properties of the materials. It has high research value and wide application prospects in the modification of PLA. In addition, the degradation performance of PLA/PBS blends and the methods to improve the degradation performance were briefly summarized, and the development direction of PLA/PBS blends biodegradation performance research was prospected.

High hydrophobic poly(lactic acid) foams impregnating one-step Si–F modified lignin nanoparticles for oil/organic solvents absorption

2021 ◽  
Vol 25 ◽  
pp. 100730
Author(s):  
Hui Ding ◽  
Weijun Yang ◽  
Wenhao Yu ◽  
Tianxi Liu ◽  
Haigang Wang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Organic Solvents ◽  
Poly Lactic Acid ◽  
One Step ◽  
Modified Lignin

Morphology and Mechanical Properties of Poly(Lactic Acid) and Propylene-Ethylene Copolymer Blends: Effect of Organoclay Types

2017 ◽  
Vol 737 ◽  
pp. 269-274
Author(s):  
Sirirat Wacharawichanant ◽  
Chaninthon Ounyai ◽  
Ployvaree Rassamee
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Tensile Properties ◽  
Polymer Matrix ◽  
Poly Lactic Acid ◽  
Dispersed Phase ◽  
Copolymer Blends ◽  
Morphology Analysis ◽  
Ethylene Copolymer ◽  
Morphology And Mechanical Properties

The effects of four types of organoclay on morphology and mechanical properties of poly(lactic acid) (PLA)/propylene-ethylene copolymer (PEC) blends were investigated. The ratio of PLA and PEC was 80/20 by weight and the organoclay content was 5 phr. The morphology analysis showed that the addition of all oganocaly types could improve the miscibility of PLA and PEC blends due to the decreased of the domain sizes of PEC dispersed phase in the polymer matrix. The tensile properties showed Young’s modulus of the PLA/PEC blends was improved after adding clay treated surface with 25-30 wt% trimethyl stearyl ammonium.

Antifungal and plasticization effects of carvacrol in biodegradable poly(lactic acid) and poly(butylene adipate terephthalate) blend films for bakery packaging

LWT ◽  
2021 ◽  
pp. 112356
Author(s):  
Phatthranit Klinmalai ◽  
Atcharawan Srisa ◽  
Yeyen Laorenza ◽  
Wattinee Katekhong ◽  
Nathdanai Harnkarnsujarit
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Blend Films ◽  
Biodegradable Poly

DGEBA-Based Epoxy Resin as Compatibilizer for Biodegradable Poly (lactic acid)/Poly(butylene adipate-co-terephthalate) Blends

2018 ◽  
Vol 381 (1) ◽  
pp. 1800133 ◽  
Author(s):  
Elaine C. Lopes Pereira ◽  
Bluma G. Soares ◽  
Rayan B. Jesus ◽  
Alex S. Sirqueira
Keyword(s):  
Lactic Acid ◽  
Epoxy Resin ◽  
Poly Lactic Acid ◽  
Biodegradable Poly

scholarly journals The combined plasticization of jute and tung oil anhydride for jute fiber reinforced poly(lactic acid) composites

2021 ◽  
pp. 096739112110576
Author(s):  
Ying Zhou ◽  
Can Chen ◽  
Lan Xie ◽  
Xiaolang Chen ◽  
Guangqiang Xiao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Physical And Mechanical Properties ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Sem Images ◽  
Pseudoplastic Fluid ◽  
Tung Oil ◽  
Biodegradable Poly ◽  
The Impact

In this work, novel plasticizing biodegradable poly (lactic acid) (PLA) composites were prepared by melt blending of jute and tung oil anhydride (TOA), and the physical and mechanical properties of PLA/jute/TOA composites were tested and characterized. The impact strength of PLA/jute/TOA composites significantly increases with increasing the content of TOA. The SEM images of fracture surface of PLA/jute/TOA composites become rough after the incorporation of TOA. In addition, TOA changes the crystallization temperature and decomposition process of PLA/jute/TOA composites. With increasing the amount of TOA, the value of storage modulus (E′) of PLA/jute/TOA composites gradually increases. The complex viscosity (η*) values for all samples reduce obviously with increasing the frequency, which means that the pure PLA and PLA/jute/TOA composites is typical pseudoplastic fluid. This is attributed to the formation of crosslinking, which restricts the deformation of the composites.

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