Biodegradation studies of polypropylene/natural fiber composites

Luthra, Priyanka; Vimal, K. K.; Goel, Vishal; Singh, Ram; Kapur, G. S.

doi:10.1007/s42452-020-2287-1

Cited by 32 publications

(14 citation statements)

References 21 publications

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“…Hence, the overall crystallinity of the composites increased as burial progressed. This finding was similar to the results reported by several researchers, claiming that the crystallinity of the filled composites increased after soil burial (Yaacob et al 2016;Huang et al 2018;Luthra et al 2020).…”

Section: Dsc Analysissupporting

confidence: 92%

“…Based on Table 2, the melting temperature (Tm) of the composites was observed in the range of 125.0 to 126.2 °C, before and after soil burial. The small changes in Tm indicated that minimal changes had been initiated by the microorganism attacks on the matrix part of the composites (Luthra et al 2020). Moreover, the crystallization temperature (Tc) and heat of fusion (H*f) for both LLDPE/PVOH composites with untreated and silane-treated kenaf increased as the soil burial test prolonged.…”

Section: Dsc Analysismentioning

confidence: 99%

“…Many researchers have reported the introduction of high fiber loading generally increases the degradability of composites in the soil (Obasi and Onuegbu 2013;Rajesh et al 2015;Yaacob et al 2016). However, there are a few studies on the degradability of compatibilized polymer composites in the soil (Sam et al 2011;Muniandy et al 2012;Luthra et al 2020). For instance, Muniandy et al (2012) analyzed the degradability of 3-aminopropyltrimethoxysilane (AMEO)-treated and untreated rattan powder filled natural rubber composites in the soil.…”

Section: Introductionmentioning

confidence: 99%

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Effect of soil burial on silane treated and untreated kenaf fiber filled linear low-density polyethylene/polyvinyl alcohol composites

Pang

Arsad

Ahmadipour

et al. 2020

BioRes

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In recent decades, natural fibers have become widely used with petroleum based polymers such as polyethylene (PE) and polypropylene (PP) because of their light weight, lower cost, and inherent biodegradability. In the present work, linear low-density polyethylene/polyvinyl alcohol (LLDPE/PVOH) composites with untreated kenaf and silane-treated kenaf at filler loadings of 0, 10, and 40 phr were prepared via the melt mixing process. The soil burial test was used to evaluate the degradability of the composites for different durations (90 and 180 d). The tensile properties, surface morphology, chemical composition, percentage of weight loss, and crystallinity of the composites before and after degradation were evaluated. With increased kenaf loading and soil burial duration, all the composites showed a decrease in tensile properties. This was further confirmed by the changes in surface morphology and chemical structure of the buried composites. The increase in weight loss percentage and crystallinity after soil burial indicated that the longer burial duration had increased the degradation of composites. Composites with silane-treated kenaf exhibited lower degradability than that of composites with untreated kenaf after being buried for 90 and 180 d. This may be attributed to the improved adhesion of kenaf to the LLDPE/PVOH matrix via silane treatment.

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Section: Dsc Analysissupporting

confidence: 92%

Section: Dsc Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of soil burial on silane treated and untreated kenaf fiber filled linear low-density polyethylene/polyvinyl alcohol composites

Pang

Arsad

Ahmadipour

et al. 2020

BioRes

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“…The change in color was used as an indicator for the biodegradation of natural fiber/polymer composites. Luthra, P., Vimal, K.K., Goel, V. et al [ 56 ] suggested that the color appearance was an important parameter used in the assessing the deterioration of the PP/natural fiber composite. The color change was mainly due to the changes in the chemical structure of the lignocellulosic complex of the natural fiber in the composite.…”

Section: Resultsmentioning

confidence: 99%

Effects of Bamboo Leaf Fiber Content on Cushion Performance and Biodegradability of Natural Rubber Latex Foam Composites

et al. 2023

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Bamboo leaf fiber (BLF) was incorporated into an eco-friendly foam cushion made from natural rubber latex (NRL) to enhance the biodegradation rate. The objective of this work was to investigate the effects of BLF content on the foam structure, mechanical properties, cushion performance, and biodegradability. The NRL foam cushion nets with and without BLF were prepared using the Dunlop method along with microwave-assisted vulcanization. BLF (90–106 µm in length) at various loadings (0.00, 2.50, 5.00, 7.50, and 10.00 phr) were introduced to the latex compounds before gelling and vulcanizing steps. Scanning electron microscopy (SEM) showed that the BLF in a NRL foam caused an increase in cell size and a decrease in the number of cells. The changes in the cell structure and number of cells resulted in increases in the bulk density, hardness, compression set, compressive strength, and cushion coefficient. A soil burial test of 24 weeks revealed faster weight loss of 1.8 times when the BLF content was 10.00 phr as compared to the NRL foam without BLF. The findings of this work suggest the possibility of developing an eco-friendly cushion with a faster degradation rate while maintaining cushion performance, which could be a better alternative for sustainable packaging in the future.

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“…Such biofillers also present a low cost material for fabricating biodegradable PP. While Luthra et al [106] blended PP separately with banana peel (BP) and pigeon pea stalk fibers (PS), where the fibers have been either untreated or undergone alkali or laccase enzyme treatment. In addition, MAPP was added to certain samples as coupling agents.…”

Section: Biological Degradationmentioning

confidence: 99%

Bio‐Polypropylene and Polypropylene‐based Biocomposites: Solutions for a Sustainable Future

Wang

Muiruri

Soo

et al. 2022

Chemistry An Asian Journal

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Polypropylene (PP) is among the most widely used commodity plastics in our everyday life due to its low cost, lightweight, easy processability, and exceptional chemical, thermo-mechanical characteristics. The growing awareness on energy and environmental crisis has driven global efforts for creating a circular economy via developing sustainable and eco-friendly alternatives to traditional plastics produced from fossil fuels for a variety of end-use applications. This review paper presents a brief outline of the emerging biobased PP derived from renewable natural resources, covering its production routes, market analysis and potential utiliza-tions. This contribution also provides a comprehensive review of the PP-based biocomposites produced with diverse green fillers generated from agro-industrial wastes, with particular emphasis on the structural modification, processing techniques, mechanical properties, and practical applications. Furthermore, given that the majority of PP products are currently destined for landfills, research progress on enhancing the degradation of PP and its biocomposites is also presented in light of the environmental concerns. Finally, a brief conclusion with discussions on challenges and future perspectives are provided.

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Biodegradation studies of polypropylene/natural fiber composites

Cited by 32 publications

References 21 publications

Effect of soil burial on silane treated and untreated kenaf fiber filled linear low-density polyethylene/polyvinyl alcohol composites

Effect of soil burial on silane treated and untreated kenaf fiber filled linear low-density polyethylene/polyvinyl alcohol composites

Effects of Bamboo Leaf Fiber Content on Cushion Performance and Biodegradability of Natural Rubber Latex Foam Composites

Bio‐Polypropylene and Polypropylene‐based Biocomposites: Solutions for a Sustainable Future

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