Thermophysical properties and biodegradation behavior of green composites made from polyhydroxybutyrate and potato peel waste fermentation residue

Wei, Liqing; Liang, Shaobo; McDonald, Armando G.

doi:10.1016/j.indcrop.2015.02.011

Cited by 143 publications

(65 citation statements)

References 40 publications

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“…For better understanding the interfacial interactions between NR and used cellulosic fillers, the adhesion factor (A) was calculated from dynamic mechanical analysis results (Wei et al 2015). Kubát et al (1990) assumed that the loss factor of the composite (tan d c ) can be expressed in terms of volume fraction and mechanical damping of filler, interface and polymer matrix by presented formula (14):…”

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

et al. 2016

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In this work, wheat bran was used as cellulosic filler in biocomposites based on natural rubber. The impact of wheat bran content [ranging from 10 to 50 parts per hundred rubber (phr)] on processing, structure, dynamic mechanical properties, thermal properties, physico-mechanical properties and morphology of resulting biocomposites was investigated. For better characterization of interfacial interactions between natural rubber and wheat bran, achieved results were compared with properties of biocomposites filled with commercially available cellulosic fillers-wood flour and microcellulose. It was observed that wheat bran, unlike commercial cellulosic fillers, contains high amount of proteins, which act like plasticizers having profitable impact on processing, physical, thermo-mechanical and morphological properties of biocomposites. This is due to better dispersion and distribution of wheat bran particles in natural rubber, which results in reduction of stiffness and porosity of the biocomposites. Regardless of cellulosic filler type, Wolff activity coefficient was positive for all studied biocomposites implying reinforcing effect of the applied fillers, while tensile strength and elongation at break decreased with increasing filler content. This phenomenon is related to restricted strain-induced crystallization of NR matrix due to limited mobility of polymer chains in the biocomposites. Furthermore, this explains negligible impact of particle size distribution, chemical composition and crystallinity degree of applied cellulosic filler on static mechanical properties of highlyfilled NR biocomposites. The conducted investigations show that wheat bran presents interesting alternative for commercially available cellulosic fillers and could be successfully applied as a low-cost filler in polymer composites.

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Section: Dynamic Mechanical Analysismentioning

confidence: 99%

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

et al. 2016

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“…For better understanding the interfacial interactions between PCL and used biofillers, the adhesion factor (A) was calculated from dynamic mechanical analysis results according to Wei et al (Wei et al, 2015) using the following Formula (7):…”

Section: Dynamic Mechanical Propertiesmentioning

confidence: 99%

Processing, mechanical and thermal behavior assessments of polycaprolactone/agricultural wastes biocomposites

Hejna

Formela

Saeb

2015

Industrial Crops and Products

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“…The third stage was possibly due to lignin degradation (250-500 • C). Lipids residue would occur through the whole temperature range (200-600 • C) [28,34,35]. Proteins from bacteria decompose in a temperature range of 300-400 • C [18].…”

Section: Tga/dtg Analysis Of Waste Biomass Feedstockmentioning

confidence: 99%

Production and characterization of bio-oil and biochar from the pyrolysis of residual bacterial biomass from a polyhydroxyalkanoate production process

Wei

Liang

Guho

et al. 2015

Journal of Analytical and Applied Pyrolysis

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a b s t r a c tPolyhydroxyalkanoate (PHA) production generates a significant amount of residual bacterial biomass (RBB) after PHA extraction. The RBB as a zero-value waste contains proteins, carbohydrates, phenolics, and ash, which can be managed and converted to bio-oil and biochar products by pyrolysis. Thermogravimetric analysis (TGA) was used to investigate the thermodegradation kinetics of RBB and pyrolysis-GCMS studies were employed to determine potential chemical products. Pyrolysis was conducted on a laboratory-scale auger reactor at 500 • C. The bio-oil and biochar yield were 28 and 46%, respectively. The pyrolysis bio-oil was characterized by the combination of GCMS, high-pressure liquid chromatography (HPLC), and electrospray ionization mass spectrometry (ESI-MS). The bio-oil was dominated by nitrogen-containing, hydrocarbons, and aromatic compounds. The biochar was studied for its specific surface area and pore size, chemical functionality by Fourier transform infrared (FTIR) and Raman spectroscopies, and butane absorption activity. Biochar was comprised of a large part of polycondensed phenolic and majorly disordered amorphous carbon.

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Thermophysical properties and biodegradation behavior of green composites made from polyhydroxybutyrate and potato peel waste fermentation residue

Cited by 143 publications

References 40 publications

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

Processing, mechanical and thermal behavior assessments of polycaprolactone/agricultural wastes biocomposites

Production and characterization of bio-oil and biochar from the pyrolysis of residual bacterial biomass from a polyhydroxyalkanoate production process

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