Biodegradable green composites reinforced by the fiber recycling from disposable chopsticks

Shih, Yeng‐Fong; Huang, Chen-Kang; Chen, Po‐Wei

doi:10.1016/j.msea.2009.10.024

Cited by 69 publications

(36 citation statements)

References 43 publications

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“…The degradation process finishes at temperatures of 361-3688C and the weight loss percentage decreases as the HSF increases: 95, 90.6, 90.4, and 85.5 wt% for PLA/HSF composites containing 10, 20, 30, and 40 wt% HSF. In general terms, as hazelnut shell powder is less thermally stable tan PLA, addition of HSF leads to a slight decrease in the thermal stability of PLA which is not a drawback for industrial uses as this decrease is detectable at high temperatures [4,13,15,24,47]. Table 2 shows some physical properties and parameters representative for the thermomechanical stability of PLA/ HSF composites together with the density.…”

Section: Thermal Properties Of Pla/hsf Compositesmentioning

confidence: 99%

“…In the last decades an increasing interest on natural fiber reinforced plastics (NFRPs) with lignocellulosic fibers, such as hemp, jute, kenaf, flax, henequen, Posidonia oceanica seaweed, etc. has been detected [2,[13][14][15][16][17][18][19][20][21]. Nevertheless, conventional WPCs with petroleum-based polymers, such as poly(ethylene)-PE, poly(propylene)-PP, poly(vinyl chloride)-PVC, and others have a negative impact during and at the end of the life cycle [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Manufacturing and properties of biobased thermoplastic composites from poly(lactid acid) and hazelnut shell wastes

Balart

Boronat

et al. 2016

Polymer Composites

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Poly(lactic acid), PLA‐based green composites were obtained with hazelnut shell flour (HSF) derived from the food industry thus leading to fully biodegradable materials with attracting properties. The hazelnut shell flour content varied in the 10–40 wt% range. An increase in the degree of crystallinity with increasing HSF was detected, mainly due to the nucleating effect of lignocellulosic particles. The thermodimensional stability was noticeably improved with increasing HSF amount as evidenced by a remarkable decrease in the coefficient of thermal–linear expansion. Increasing HSF leads to stiffer materials as HSF particles act as interlock points that restrict polymer chain motion. Addition of hazelnut shell flour as filler in PLA‐based green composites leads to fully biodegradable composites with balanced mechanical and thermal properties. Furthermore, it gives a solution to upgrade wastes from the hazelnut industry and contributes to lower the cost of PLA‐based materials. POLYM. COMPOS., 39:848–857, 2018. © 2016 Society of Plastics Engineers

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Section: Thermal Properties Of Pla/hsf Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Manufacturing and properties of biobased thermoplastic composites from poly(lactid acid) and hazelnut shell wastes

Balart

Boronat

et al. 2016

Polymer Composites

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“…This filler can be grinded to give a lignocellulosic flour that can provide wood like appearance to polymer composites. It can be used as reinforcement/filler with a wide variety of polymeric matrices to give wood-like materials that contribute to preserve forestry resources [10][11][12][13][14][15][16][17][18][19][20][21]. Although these composites are attractive for some technical uses, one important drawback is their excessive fragility, which results from the high intrinsic account the relatively low hydrophilic nature of PLA and the extremely high hydrophilic nature of the lignocellulosic filler, poor matrixparticle interactions are achieved thus leading to stress concentration phenomena that also contributes to fragility.…”

mentioning

confidence: 99%

Processing and characterization of high environmental efficiency composites based on PLA and hazelnut shell flour (HSF) with biobased plasticizers derived from epoxidized linseed oil (ELO)

Balart

Fombuena

Fenollar

et al. 2016

Composites Part B: Engineering

128

109

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interactions so that indicating that ELO also provides a coupling effect between PLA matrix and HSF filler. ELO addition leads to a decrease in storage modulus (G') obtained by dynamic mechanical thermal analysis (DMTA) in torsion mode thus giving clear evidence of the plasticization effect of ELO. Overall, the use of ELO in PLA/HSF composites is an attracting way to improve the low intrinsic fragility of these green Injection moulding.1.-Introduction.In the last years, a remarkable increase in the development of high environmentally friendly materials has been detected in the field of polymers and polymer composites. The high concern of society about environment protection has promoted the development of new "eco", "bio" or "green" materials. which results from the high intrinsic account the relatively low hydrophilic nature of PLA and the extremely high hydrophilic nature of the lignocellulosic filler, poor matrixparticle interactions are achieved thus leading to stress concentration phenomena that also contributes to fragility. For this reasons, research on how to reduce fragility of PLA-based composites is being investigated. One approach is focused on the use of compatible plasticizers for PLA and another approach considers the use of compatibilizer agents to act as a bridge between the hydrophobic PLA matrix and the highly hydrophilic surrounding particles.In general terms, the use of plasticizers lead to a decrease in the PLA glass transition temperature (Tg PLA); they also favor cold crystallization and the resulting material is more flexible. On the other hand, the use of coupling agents or compatibilizers provides intense PLA matrix-lignocellulosic filler interactions that contribute to decrease fragility.Chemical coupling agents such as N,N-(1,3-phenylene dimaleimide) and 1,1- The main aim of this study is to reduce the high intrinsic fragility of poly(lactic acid), PLA -hazelnut shell flour (HSF) by using a biobased plasticizer from epoxidized linseed oil (ELO). Mechanical, thermal and thermomechanical properties of PLA -HSF green composites are evaluated in terms of the epoxidized linseed oil (ELO) load in the 0 -22.5 wt.% range.2.-Experimental. 2.1.-Materials.Poly(lactic acid), PLA commercial grade Ingeo 6201D was supplied by NatureWorks LLC (Minnesota, USA). This grade is characterized by a melt flow index in the 15 -30 g/10 min range and a density of 1.24 g cm -3 .Hazelnut shell waste (Corylus avellana) was obtained from the food industry and subjected to a grinding process to an average particle size of 63 m to give a homogeneous flour (hazelnut shell flour, HSF). Hazelnut shell was grinded in an ultra centrifugal mill from Retsch GmbH (Hann, Germany) at a rotating speed of 10000 rpm.Epoxidized linseed oil (ELO), CAS number 8016-11-3 was used as plasticizer in at 20 ºC and a viscosity of 8-11 p at 25 ºC. It shows high thermal stability with a flammability temperature of 287 ºC and it is not water-soluble. The average fatty acid profile is: 3-5% stearic acid, 5-7% palmitic acid, 14-20% linoleic ...

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“…Increased micro-PCM content exhibit enhanced heat storage stability, thermal stability and decreased storage modulus and Tg for the developed composites. [42] used SEM, DSC, TGA (Fig. 15), FTIR (Fig.…”

Section: Peamentioning

confidence: 99%

“…Development of natural fibers reinforced biodegradable polymer composites has been widely reported. Addition of plant fibers into biodegradable polymers enhanced the mechanical properties, reduced the materials cost and result in a totally environmental green composite [42][43][44][45][46][47][48][49]. However, to enhance the interfacial bonding between fiber and matrix, surface treatment of fiber is essential.…”

Section: Introductionmentioning

confidence: 99%

A Review on Biodegradable Polymeric Materials Striving Towards the Attainment of Green Environment

Jayanth¹,

Kumar

Nayak

et al. 2017

J Polym Environ

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Biodegradable green composites reinforced by the fiber recycling from disposable chopsticks

Cited by 69 publications

References 43 publications

Manufacturing and properties of biobased thermoplastic composites from poly(lactid acid) and hazelnut shell wastes

Manufacturing and properties of biobased thermoplastic composites from poly(lactid acid) and hazelnut shell wastes

Processing and characterization of high environmental efficiency composites based on PLA and hazelnut shell flour (HSF) with biobased plasticizers derived from epoxidized linseed oil (ELO)

A Review on Biodegradable Polymeric Materials Striving Towards the Attainment of Green Environment

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