Miscibility study of solution cast blends of poly(lactic acid) and poly(vinyl butyral)

Khurma, Jagjit R.; Rohindra, David; Devi, Ranjini

doi:10.1071/sp05004

Cited by 15 publications

(10 citation statements)

References 12 publications

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“…Therefore, the tensile strength of the PLA film can be improved by addition of a m-CNF with DS > 0.80. In general, composites prepared by the solution casting method have lower tensile strength than those prepared by the melt blend method [ 30 ]. This also occurred for our products because the tensile strength of PLA was lower than that of pure commercialized or industrial PLA.…”

Section: Resultsmentioning

confidence: 99%

Effects of Acid-Anhydride-Modified Cellulose Nanofiber on Poly(Lactic Acid) Composite Films

et al. 2021

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In this study, we investigated the effect of the addition of cellulose nanofiber (CNF) fillers on the performance of poly(lactic acid) (PLA). Modification of the hydroxyl group of cellulose to the acyl group by acid anhydrides changed the compatibility of the CNF with PLA. CNF was modified by acetic anhydride, propionic anhydride, and butyric anhydride to form surface-modified acetylated CNF (CNFa), propionylated CNF (CNFp), and butyrylated CNF (CNFb), respectively, to improve the compatibility with the PLA matrix. The effects of the different acid anhydrides were compared based on their rates of reaction in the acylation process. PLA with modified cellulose nanofiber fillers formed smoother surfaces with better transparency, mechanical, and wettability properties compared with the PLA/CNF composite film. The effects of CNFa, CNFp, and CNFb on the PLA matrix were compared, and it was found that CNFp was the best filler for PLA.

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Section: Resultsmentioning

confidence: 99%

Effects of Acid-Anhydride-Modified Cellulose Nanofiber on Poly(Lactic Acid) Composite Films

et al. 2021

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“…These poor mechanical performances are related to the immiscibility of the two polymers as observed previously. [12][13][14]20 Scanning electron microscopy was used to investigate the microstructure of LDPE, PLA and LDPE/ PLA blends (Figure 3). The blends did not present homogeneous interfaces.…”

Section: Resultsmentioning

confidence: 99%

“…Polymer blends are expected to produce materials with better properties compared to similar materials made from the respective pure polymer. 13 In recent years, interest has grown in blending PLA with other polymers such as poly(ε-caprolactone) (PCL), 14,15 starch, 1 poly(vinyl pyrolidone) (PVP), chitosane, poly(3-hydroxybutyrate) (PHB), poly(vinyl butyral) (PVB), 14 poly(butylene succinate) (PBS), 16 rice starch (RS), 7 Arabic gum (AG), 5 LDPE, 17 poly(ethylene glycol) (PEG), 13,14 polypropylene (PP), 12,13 poly(ethylene terephthalate) (PET), 18 poly(butylene succinate adipate) (PBSA), 4,13,19 and poly(butylenes adipate- co -terephthalate) (PBAT). 3 Most of these polymers that are blended with PLA are said to be partially immiscible.…”

Section: Introductionmentioning

confidence: 99%

Valorization of waste jute fibers in developing low-density polyethylene /poly lactic acid bio-based composites

Boubekeur

Belhaneche‐Bensemra

Massardier

2015

Journal of Reinforced Plastics and Composites

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This work deals with the valorization of waste jute fibers coming from carpet industries in the development of biocomposites based on blends of low-density polyethylene and poly lactic acid. First, low-density polyethylene /poly lactic acid blends of variable composition (100/0, 80/20, 50/50, 20/80, 0/100) were prepared. Their tensile properties and morphology were characterized. Tensile strength of the blends was lower compared to the pure poly lactic acid and the elongation decreased significantly with increasing poly lactic acid which is due to poor adhesion as evidenced by SEM analysis. These results indicated the incompatibility between low-density polyethylene and poly lactic acid. Thus, the aim of the second step was to find a relevant compatibilizer. For that purpose, five functionalized polyolefins were tested: poly(ethylene-co-glycidyl methacrylate) (8% glycidyl methacrylate) (PE-g-GMA), poly(propylene-co-ethylene-grafted maleic anhydride) (1.4% maleic anhydride) (PP-g-MA), poly(ethylene-co-acrylic-ester-co-glycidyl methacrylate) (E-AE-GMA) (8% glycidyl methacrylate, 24% methyl acrylate), polypropylene-grafted maleic anhydride (PP-g-MA) (high percentage maleic anhydride), poly(ethylene-co-butylacrylate-co-maleic anhydride) (E-BA-MAH) (6% butyl acrylate, 3% maleic anhydride). PE-g-GMA exhibited the best results in terms of tensile properties and morphology. Low-density polyethylene/poly lactic acid /PE-g-GMA (20/80/5) reinforced with 0-40 wt% jute fibers were prepared and characterized (tensile properties, charpy impact strength, morphology and thermal properties) in the last step. The results showed an improvement of tensile properties and a satisfactory interfacial adhesion between jute fibers and polymer blends. Furthermore, thermal stability was affected by the incorporation of 10% of jute fiber but varied very little with the increase in load.

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“…and a shift in this peak is observed. 20 This means, in the present work, the existence of carbonyl group in PVC enhances the miscibility of P3OT-PVC blends.…”

Section: Ftir Analysismentioning

confidence: 50%

“…Also, other studies focused on the physical properties of blends such as PVC-polystyrene (PS), 17,18 PVC-Poly(methyl methacrylate) (PMMA), 19 in addition to other PVC blend systems. 19,20 Few researchers studied the miscibility, EMI shielding and phase diagramed of P3OT-PS blend 5,[21][22][23][24] and P3OT/ PVC blend. 5,21 Present work further investigates new additions in the physical properties and preparation conditions of P3OT-PVC blend.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of poly(3-octyl thiophene)/polyvinyl chloride polymer blends

Ibrahim

Ayesh

2013

Journal of Plastic Film & Sheeting

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Different weight ratios of poly(3-octyl thiophene) / polyvinyl chloride blends were prepared using the casting method by dissolving poly(3-octyl thiophene) and polyvinyl chloride polymers in chloroform and Tetrahydrofuran, respectively. Fourier transform infrared spectroscopy indicates the existence of carbonyl group in both polyvinyl chloride neat and poly(3-octyl thiophene)-polyvinyl chloride blends. Electrical measurements reveal that the impedance values are increased with the increasing of both weight fraction of poly(3-octyl thiophene) and temperature. Optical results reveal that the increase of poly(3-octyl thiophene) weight fraction in blends enhances the UV-visible absorption of polyvinyl chloride and reduces the optical energy gap of blends. Differential scanning calorimetric measurements and thermal gravimetric analysis show that the glass transition temperature value and thermal stability of blend increases with increasing of poly(3-octyl thiophene) weight ratio. The obtained results, generally, indicate that the increase of poly(3-octyl thiophene) weight fraction enhances the interaction between poly(3-octyl thiophene)-polyvinyl chloride chains and as a result will restrict the chain mobility of polymers.

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Miscibility study of solution cast blends of poly(lactic acid) and poly(vinyl butyral)

Abstract: Poly(lactic acid) (PLA) was blended with poly(viny1 butyral)

Cited by 15 publications

References 12 publications

Effects of Acid-Anhydride-Modified Cellulose Nanofiber on Poly(Lactic Acid) Composite Films

Effects of Acid-Anhydride-Modified Cellulose Nanofiber on Poly(Lactic Acid) Composite Films

Valorization of waste jute fibers in developing low-density polyethylene /poly lactic acid bio-based composites

Preparation and characterization of poly(3-octyl thiophene)/polyvinyl chloride polymer blends

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