Compatibilization of PLA grafted maleic anhydrate through blending of thermoplastic starch (TPS) and nanoclay nanocomposites for the reduction of gas permeability

Alikarami, Niloofar; Abrisham, Mahbod; Huang, Xiayan; Panahi‐Sarmad, Mahyar; Zhang, Kanglei; Dong, Ke; Xiao, Xueliang

doi:10.1080/19475411.2022.2051639

Cited by 12 publications

(10 citation statements)

References 70 publications

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“…As expected, the composites become brittle with a reduced elongation at break by about 90%. This reduction in flexibility is anticipated because organoclays are considered rigid fillers with high modulus, and the results agree with previous studies 18,26,40,41 . Similarly, incorporating C20A and I30E produced brittle samples with elongation at break of about 2%.…”

Section: Resultssupporting

confidence: 90%

“…This reduction in flexibility is anticipated because organoclays are considered rigid fillers with high modulus, and the results agree with previous studies. 18,26,40,41 Similarly, incorporating C20A and I30E produced brittle samples with elongation at break of about 2%. Overall, it is worth noting that C30B resulted in the best-balanced properties of about 2.9 GPa and 33 MPa for Young's modulus and tensile strength, respectively.…”

Section: Tensile Properties Of Tps/pla/ Organoclay Compositesmentioning

confidence: 99%

“…In this growth trend, maleic anhydride (MA) has been used as a compatibilizer for starch/PLA blends resulting in reduced TPS particle sizes suitable for the production of homogenous composite. 25,26 Moreover, reactive functionalization of PLA with MA (PLA-g-MA) using dicumyl peroxide as a grafting initiator can improve compatibility and interfacial adhesion between the PLA and starch. 27 Another equally important modifier is methylene diphenyl diisocyanate (MDI) which has been used to improve the interface in PLA, and wheat starch blends with outstanding results.…”

Section: Introductionmentioning

confidence: 99%

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Incorporating organoclays into sustainable starch/polylactide biocomposites for enhanced mechanical and thermal properties

Zhang

Muiruri

Yeo

et al. 2023

J of Applied Polymer Sci

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Starch is an essential biopolymer in biofuel production and a sizing agent in the paper and textile industries. However, native starch is unsuitable for most applications due to brittleness, inferior mechanical and thermal properties, and poor processability. In this regard, a series of modified starch‐based biopolymer composites were prepared by extrusion to produce composites with enhanced properties for enlarged applications. Unlike other studies, the developed thermoplastic starch (TPS) in this work was produced by gelatinizing starch with glycerol and poly(butylene succinate) (PBS) to induce both plasticization and compatibilization. The resultant TPS was blended with diverse organoclays and polylactide (PLA) via a twin‐screw extruder to obtain TPS/PLA/organoclay composites. The ensuing composites were studied for thermal and morphology properties using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Results showed that the organoclay loading highly influenced the mechanical and thermal properties of the TPS/PLA composites by enhancing the thermal stability and stiffness of the blends. More importantly, incorporating a small amount of organoclay into PLA enhanced its compatibility with TPS, as depicted in morphological studies. The enhanced crystallization and compatibilization of the blends resulted in enhanced mechanical properties of eco‐friendly composite materials for sustainable packaging applications.

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Section: Resultssupporting

confidence: 90%

Section: Tensile Properties Of Tps/pla/ Organoclay Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Incorporating organoclays into sustainable starch/polylactide biocomposites for enhanced mechanical and thermal properties

Zhang

Muiruri

Yeo

et al. 2023

J of Applied Polymer Sci

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“…Acting as a continuous phase in a 50/50 blend, TPS allows more movement of PE molecules due to its amorphous structure, which affects the melting behavior. [ 46 ] Crystallinity values increased with increasing curcumin content. The highest crystallinity value of 28.78% was observed in the 50PE/50TPS/7CUR film.…”

Section: Resultsmentioning

confidence: 99%

Monitoring food quality ‐ effect of curcumin in the development of polyethylene/thermoplastic starch based smart packaging

Hazer

Aytaç

2023

Vinyl Additive Technology

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Smart packaging relies on the one‐to‐one interaction of food with its packaging or its environment to monitor food quality and safety. Colorimetric pH indicators (synthetic, natural) working in a smart food packaging system are particularly striking when used with fresh foodstuffs such as fish and meat that perish quickly and require real‐time freshness monitoring. In this study, curcumin (Cur) was used as a natural pH indicator to produce sustainable smart packaging material. Towards this objective, low‐density polyethylene (LDPE) and thermoplastic starch (TPS) blend‐based films containing Cur were prepared using a twin screw extrusion and hot‐pressing processes. Besides, two different compositions of LDPE/TPS mixture (50/50 and 70/30) were used as the matrix. Thermal, mechanical, morphological properties, an affinity for water, and color change properties of LDPE/TPS/Cur films were investigated. They showed a significant color change from yellow to brown at pH: 10 at the end of the seventh day, especially in the 50 LDPE/50 TPS mixture. 50 LDPE/50 TPS mixture with 7% curcumin content gave the highest tensile strength of 8.03 Mpa. When the same mixture was used to monitor chicken meat spoilage at 25°C, meat samples have shown color changes from light yellow to light brown due to the increased content of total volatile basic amines. As a result, it has been suggested that 50 LDPE/50 TPS mixture containing 7% Cur can be used as a smart packaging material.

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“…The presence of free MA in the blend matrix had a plasticizing effect by affecting the mechanical and thermal properties of the blend [5]. Maleic anhydride is often preferred in the functionalization studies of alkenic polymers due to its low homopolymerization tendency and the formation of short grafts on the chain that allow the polymer to retain most of its physical and mechanical properties [1,8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Thermomechanical Analysis of Some Primer Alcohol Derivatives of Maleic Anhydride/Styrene Copolymer

Yılmaz

2022

Karamanoğlu Mehmetbey Üniversitesi Mühendislik Ve Doğa Bilimleri Dergisi

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In this study, Maleic anhydride/Styrene (MAS) copolymer was synthesized. The synthesized copolymer was characterized and then modified with two different primary alcohols (propyl and butyl). Dissolution, FT-IR and thermo-mechanical (TMA) analyzes of the copolymer and its two modified ester derivatives were performed. The ester numbers of the obtained derivatives were calculated. Although the ester derivatives showed dissolution behavior in the same solvents as the MAS copolymer, they dissolved faster. Modification was confirmed in the FT-IR spectra. It was also found that the derivatives were more elastic than the MAS copolymer and had a lower glass transition temperatures. The calculated ester numbers were also close to each other.

show abstract

Compatibilization of PLA grafted maleic anhydrate through blending of thermoplastic starch (TPS) and nanoclay nanocomposites for the reduction of gas permeability

Cited by 12 publications

References 70 publications

Incorporating organoclays into sustainable starch/polylactide biocomposites for enhanced mechanical and thermal properties

Incorporating organoclays into sustainable starch/polylactide biocomposites for enhanced mechanical and thermal properties

Monitoring food quality ‐ effect of curcumin in the development of polyethylene/thermoplastic starch based smart packaging

Synthesis and Thermomechanical Analysis of Some Primer Alcohol Derivatives of Maleic Anhydride/Styrene Copolymer

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