Effect of Maleic‐Anhydride Grafting on the Physical and Mechanical Properties of Poly(<scp>L</scp>‐lactic acid)/Starch Blends

Hwang, Sung Wook; Shim, Jin Kie; Selke, Susan; Soto‐Valdez, Herlinda; Rubino, Maria; Auras, Rafael

doi:10.1002/mame.201200111

Cited by 45 publications

(54 citation statements)

References 40 publications

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“…As presented above, using of maleic anhydride is a simple and effective way to enhance performance properties of PLA/starch blends. Similar observations have been also reported in works [112,113]. Furthermore, Świerz-Motysia et al [114] showed that biodegradation rate of PLA/TPS blends decreases with an increased content of PLA-g-MA as compatibilizer, which can be associated with its influence on the degree of crystallinity in studied blends.…”

Section: Aliphatic Polyesters/starch Blendssupporting

confidence: 86%

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Formela¹,

Zedler²,

Hejna³

et al. 2018

Express Polym. Lett.

108

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Abstract.Reactive extrusion is a cost-effective and environmentally-friendly method to produce new materials with enhanced performance properties. At present, reactive extrusion allows in-situ polymerization, modification/functionalization of polymers or chemical bonding of two (or more) immiscible phases, which can be carried out on commonly used extrusion lines. Although reactive extrusion has been known for many years, its application for processing of bio-based polymer blends and composites is a relatively new direction of scientific research. This work presents a literature review on recent advances in the processing of bio-based polymer blends and composites via reactive extrusion. We described compatibilization mechanisms for different types of biodegradable polymeric materials based on: (i) aliphatic polyesters, (ii) aliphatic polyesters/starch and (iii) aliphatic polyester/natural rubber systems. A special attention was focused on conventional and dynamic cross-linking of bio-based polymer blends and composites as an effective way to prepare new materials with unique properties e.g. biodegradable thermoplastic elastomers or shape-memory materials. Advantages and limitations affecting future trends in development of biodegradable polymer blends and composites reactive extrusion are also discussed.

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Section: Aliphatic Polyesters/starch Blendssupporting

confidence: 86%

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Formela¹,

Zedler²,

Hejna³

et al. 2018

Express Polym. Lett.

108

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“…Overall, the prepared PLA/PPC blend with 2 phr MA showed optimal performance in mechanical performances. The compatibility between the PLLA and starch (25% amylose content with 11% inherent moisture) has been improved with DCP and MA . The improved compatibility was attributed to the grafting reaction as shown in Figure .…”

Section: Principle and Mechanism Of In Situ Compatibilization Of Polymentioning

confidence: 94%

“…The compatibility between the PLLA and starch (25% amylose content with 11% inherent moisture) has been improved with DCP and MA . The improved compatibility was attributed to the grafting reaction as shown in Figure . The reactive compatibilization of the polymers improved the tensile properties and thermomechanical properties in contrast to the uncompatibilized PLLA/starch blends.…”

Section: Principle and Mechanism Of In Situ Compatibilization Of Polymentioning

confidence: 96%

Biodegradable compatibilized polymer blends for packaging applications: A literature review

Muthuraj

Misra

Mohanty

2017

J of Applied Polymer Sci

289

183

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The majority of materials used for short-term and disposable packaging application are non-biodegradable which are not satisfying the demands in environmental safety and sustainability. Biodegradable polymers are an alternative for these nonbiodegradable materials. The biodegradable polymeric materials can degrade in a reasonable time period without causing environmental problems. However, biodegradable polymers possess some limitations such as comparatively high cost, insufficient mechanical performances, and inferior thermal stability to extend their widespread application in packaging industry. To overcome these limitations, one of the most commonly used strategies is melt blending of dissimilar biodegradable polymers. Unfortunately, most of the biodegradable polymer blends exhibit insufficient performance because they are thermodynamically immiscible as well as exhibit poor compatibility between the blended components. It has been established that the compatibilization is a well-known strategy to improve the performances of the immiscible biodegradable polymer blends by enhancing the adhesion between the phases. As a result, recent studies focus on various compatibilizers to enhance the performances of the resulting biodegradable polymer blends. This review summarizes the recent developments on a variety of biodegradable polymer blends compatibilized by melt processing with a main focus of ex situ and in situ compatibilization strategies.

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“…Then, the materials were dried in a vacuum oven at 50°C to evaporate extra diethyl ether in the mixture. All composites were mixed with 50:50 PLLA/starch content according to the previous studies 9,26 as shown in Table II. The mixing process was carried out using an internal mixer (Brabender, Duisburg, Germany) at 180°C for 15 min at 60 rpm.…”

Section: Preparation Of Plla/starch and Treated Rs Compositesmentioning

confidence: 99%

Investigating the Effect of Treated Rice Straw in PLLA/Starch Composite: Mechanical, Thermal, Rheological, and Morphological Study

Davachi

Bakhtiari

Pouresmaeel-Selakjani

et al. 2015

Adv Polym Technol

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ABSTRACT:The aim of this work is to use lignocellulosic wastes as low price additives in biodegradable polymers. The rice straw (RS) was treated by means of different methods, and then it was introduced to the poly(lactic acid)/starch composites. The effects of different treatments on RS properties were investigated using the Fourier transform infrared, tensile, charpy, hardness, differential scanning calorimetry, rheology, contact angle, and scanning electron microscopy. It was found that 5-10% of all the differently treated RS increases the overall properties. Moreover, silica and lignin were mainly affected by such treatments; however, a balance between silica and lignin shows the best results. The modified alkali-treated rice straw (ARS treatment) prevented cellulose from degradation by creating a balance between silica and lignin, which controls the opposing effects of lignin including paste-like and plasticating effects. Finally, the ARS-filled samples show improved overall properties among the other samples. The obtained composites with optimum filler content may be used in the biomembranes and food packaging applications. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2018, 37, 21634; View this article online at wileyonlinelibrary.com.

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Effect of Maleic‐Anhydride Grafting on the Physical and Mechanical Properties of Poly(L‐lactic acid)/Starch Blends

Cited by 45 publications

References 40 publications

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Biodegradable compatibilized polymer blends for packaging applications: A literature review

Investigating the Effect of Treated Rice Straw in PLLA/Starch Composite: Mechanical, Thermal, Rheological, and Morphological Study

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