Influence of LLDPE-g-MA on Mechanical Properties, Degradation Performance  and Water Absorption of Thermoplastic Sago Starch Blends

Tanjung, Denny Akbar; Jamarun, Novesar; Arief, Syukri; Aziz, Hermansyah; Ritonga, Ahmad Hafizullah; Isfa, Boy

doi:10.22146/ijc.68558

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…After that, the sample is soaked in water for 24 h, removed, cleaned, and weighed, called the wet mass (Mw). Next, the percentage of water absorption is calculated [22].…”

Section: Water Absorption Test Of Polymer Compositesmentioning

confidence: 99%

“…The results obtained measured the value of weight loss percentage. This biodegradation test was conducted in a room with a humidity of 45-65% RH [22].…”

Section: Biodegradable Test Of Polymer Compositesmentioning

confidence: 99%

“…However, when O-PCC is added again into the polymer composite, it causes an increase in the water absorption percentage. This condition can be caused by the uneven dispersion of the filler in the polymer composite or agglomeration [22,25]. In polymer composites with O-PCC concentrations above 5%, there is an increase in water absorption because O-PCC only acts as a filler and is no longer a co-compatibilizer in the PLA and LLDPE mixture so that water is more easily absorbed in the polymer composite, besides the uneven dispersion of the O-PCC also can cause that.…”

Section: Physical Propertiesmentioning

confidence: 99%

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PLA/LLDPE/Organo-Precipitated Calcium Carbonate Composites Containing LLDPE-g-OA Compatibilizers: Mechanical, Physical, Thermal, and Morphology

Ritonga,

Aritonang,

Putri

et al. 2023

Indones. J. Chem.

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A plastic composite consisting of polylactic acid (PLA), linear low-density polyethylene (LLDPE), oleic acid-grafted linear low-density polyethylene (LLDPE-g-OA) compatibilizer, and organo-precipitated calcium carbonate (O-PCC) have been successfully made in the molten state. This study aims to characterize the mechanical, physical, thermal, and morphological characteristics of the PLA/LLDPE/O-PCC plastic composite in the presence of an LLDPE-g-OA compatibilizer. The plastic composite was prepared by blending PLA, LLDPE, LLDPE-g-OA, and O-PCC using an internal mixer with a heating of 160 °C and a rotation of 100 rpm. LLDPE and LLDPE-g-OA are put together into the inner mixer chamber until melted, followed by PLA and O-PCC. The most optimum plastic composite composition is PLA/LLDPE/LLDPE-g-g-OA/O-PCC (67.5:22.5:5:5). The mechanical properties showed an increase in tensile strength of 9.78 MPa. The physical properties showed that the minimum water absorption was 0.74%, the biodegradation in humus soil showed a degradation rate of 0.09% per day, and the thermal properties showed better stability with a melting point of 146.5 °C. The FTIR spectrum is similar to the polymer blend without O-PCC. The morphology indicates that the composite is compatible and homogeneous. This semi-biodegradable plastic composite has significant implications for reducing the accumulation of plastic waste in the environment.

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“…After that, the sample is soaked in water for 24 h, removed, cleaned, and weighed, called the wet mass (Mw). Next, the percentage of water absorption is calculated [22].…”

Section: Water Absorption Test Of Polymer Compositesmentioning

confidence: 99%

“…The results obtained measured the value of weight loss percentage. This biodegradation test was conducted in a room with a humidity of 45-65% RH [22].…”

Section: Biodegradable Test Of Polymer Compositesmentioning

confidence: 99%

Section: Physical Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

PLA/LLDPE/Organo-Precipitated Calcium Carbonate Composites Containing LLDPE-g-OA Compatibilizers: Mechanical, Physical, Thermal, and Morphology

Ritonga,

Aritonang,

Putri

et al. 2023

Indones. J. Chem.

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“…The cellulose or nanocellulose can be isolated from forest and agricultural wastes. In addition, the other component reported as a linker, i.e., citric acid, sorbitol, glyoxal, dicarboxylic acid, and organic acid reagents like maleic acid and ascorbic acid [12][13][14]. Meanwhile, additive materials are generally added to improve the degradability characteristic and/or appearance of bioplastic [15].…”

Section: ■ Introductionmentioning

confidence: 99%

Degradable Bioplastic Developed from Pine-Wood Nanocellulose as a Filler Combined with Orange Peel Extract

2023

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This research presents the degradable bioplastics developed from pinewood nanocellulose as a filler in PVA matrices. The steps involve the isolation and characterization of cellulose and nanocellulose. Meanwhile, the manufacturing of degradable bioplastic involves the combination of PVA, nanocellulose, and with or without orange peel extract. The effect of bioplastics without the addition of citric acid and orange peel extract is also reported as a comparison. It is found that orange peel extract improves the tensile strength (1708.54 kPa), elastic modulus (42.71 kPa), elongation (40%), and degradability (78.44% in 2 weeks) compared to bioplastic without the orange peel extract. These results indicate that orange peel extract acts as a reinforcing agent in PVA-nanocellulose bioplastic.

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“…However, burning plastic waste can produce toxic substances harmful to living things and the environment. Meanwhile, planting waste is ineffective because plastic is difficult to degrade [2].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Degradable Plastics from Sago and Breadfruit Starch-Based with Addition of Zinc Oxide (ZnO) Catalyst and Polyvinyl Alcohol (PVA)

Dewi,

Sylvia,

Riza

2023

J. Kim. Sains Apl.

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Degradable plastic can be used as a substitute for commercial plastic. Degradable plastic made from starch with zinc oxide (ZnO) catalyst and polyvinyl alcohol (PVA) has biodegradable properties. This research used sago starch, breadfruit starch, ZnO catalyst, and PVA as additives to strengthen the mechanical properties of degradable plastic. The research methodology encompassed several stages, including the preparation of sago and breadfruit starch, the synthesis of degradable plastic, and the subsequent evaluation of its characteristics. Various concentrations of ZnO and PVA catalysts (10%, 20%, 30%, and 40%) were employed in this study. Mechanical characteristic test for degradable plastic showed that the tensile strength test for sago starch-based plastic with 40% ZnO catalyst and PVA was 2.31–3.96 MPa, while for breadfruit starch-based degradable plastic was 2.88–3.20 MPa. FTIR analysis revealed that the compound constituents of degradable plastics exhibit hydrophilic properties and readily interact with water, making them susceptible to natural degradation in soil. Furthermore, the thermal characteristics were examined using DSC, which indicated that sago starch-based degradable plastic (with ZnO 40% and PVA 40%) exhibited a thermogram peak at a temperature of 137.15°C, while the breadfruit starch-based plastic displayed a peak at 136.97°C. In terms of water absorption, the swelling index for sago starch-based plastic ranged from 18.35% to 65.26%, whereas for breadfruit starch-based plastic, it ranged from 19.91% to 64.06%. Notably, the lowest water absorption levels were observed at a ZnO concentration of 40% and a PVA concentration of 10%. The higher the PVA concentration, the more water was absorbed due to the hydrophilic nature of PVA, but the higher the ZnO concentration, the lower the water absorption. Degradation of plastics sago and breadfruit starch occurred for 20-28 days and by ASTM D-20.96 (degradable plastics should be decomposed before 180 days). The higher the concentration of ZnO catalyst added to bioplastics, the longer the degradation time, while the higher the PVA content, the faster the degradation time.

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Influence of LLDPE-g-MA on Mechanical Properties, Degradation Performance and Water Absorption of Thermoplastic Sago Starch Blends

Cited by 7 publications

References 15 publications

PLA/LLDPE/Organo-Precipitated Calcium Carbonate Composites Containing LLDPE-g-OA Compatibilizers: Mechanical, Physical, Thermal, and Morphology

PLA/LLDPE/Organo-Precipitated Calcium Carbonate Composites Containing LLDPE-g-OA Compatibilizers: Mechanical, Physical, Thermal, and Morphology

Degradable Bioplastic Developed from Pine-Wood Nanocellulose as a Filler Combined with Orange Peel Extract

Characterization of Degradable Plastics from Sago and Breadfruit Starch-Based with Addition of Zinc Oxide (ZnO) Catalyst and Polyvinyl Alcohol (PVA)

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