Preparation and Characterization of Bioplastic-Based Green Renewable Composites from Tapioca with Acetyl Tributyl Citrate as a Plasticizer

Tsou, Chi‐Hui; Suen, Maw‐Cherng; Yao, Weihua; Yeh, Jen‐Taut; Wu, Chin-San; Chiu, Shih‐Hsuan; Chen, Jui‐Chin; Wang, Ruo; Lin, Shang-Ming; Hung, Wei‐Song; Guzman, Manuel Reyes De; Hu, Chien‐Chieh; Lee, Kueir‐Rarn

doi:10.3390/ma7085617

Cited by 70 publications

(39 citation statements)

References 52 publications

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“…Double absorption peak at wavenumbers of 1093 and 1068 cm −1 is assigned to C-O stretching band from ether and alcoholic group [31,32]. In case of PLA, absorption peaks at wavenumbers: 3510, 2995, 2950, 1749, 1450, 1362, and 1053 cm −1 are related to C-O-O-H stretching, C-H aliphatic stretching, C-H aliphatic stretching (doublet), C=O bending, -CH 2 bending, C-H bending, and C-O stretching, respectively [33,34]. The absorption bands at 1207 and 920 cm −1 are associated with allyl-ketone chain vibration and flexural C-H bond vibration and are representatives of the PLA crystalline structure [35,36].…”

Section: Spectroscopic Analysis Of Composites and Its Ingredientsmentioning

confidence: 99%

Characterization of poly(lactic acid) biocomposites filled with chestnut shell waste

Barczewski

Matykiewicz

Krygier

et al. 2017

J Mater Cycles Waste Manag

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expansion of petroleum-based polymers. Despite trials of the reducing polymeric waste and strong restrictions concerning storage and product end-life cycle performance, the amount of the non-degradable polymer gradually has become ballast for the environment. Therefore, the endeavor of introducing biodegradable polymers in industrial-scale production gained ground among scientists [1]. The area of biodegradable material application is continuously extending thanks to their improving properties which in many cases resemble petrochemical polymers. In spite of many studies concerning the usage of biodegradable polymers, such as poly(lactic acid) (PLA) [2][3][4][5][6][7][8][9][10], poly(butylene adipate-co-terephthalate (PBAT) [11][12][13], polypropylene carbonate (PPC) [14][15][16], and starch [17][18][19][20], their commercial application is still not very common. Packaging industry appears as a branch which due to relatively low expectations towards mechanical properties allows for wide application of fully biodegradable polymers on a bigger scale [5]. The low thermo-mechanical stability of green composites, next to relatively high price, became their biggest disadvantage in comparison to petroleum-based non-biodegradable polymers [5,13]. Therefore, it is well founded to use recycled thermoplastic biodegradable polymers as a matrix for composites filled with organic and inorganic fillers [7,11].Except for the application of the specially prepared fiberlike natural fillers (e.g., bamboo, kenaf, jute and flax), great attention is placed on incorporation of agricultural waste materials into polymeric matrix [2,[21][22][23][24][25]. Extensive studies showed that presence of the natural fillers in biodegradable polymers may strongly accelerate biodegradation process thanks to faster hydrolysis followed by oxidation of both biopolymer, as well as the filler. Moreover, presence of natural filler increases water absorption, which highly influences biodegradation process of the composites, in comparison to neat polymer. In case of natural composites Abstract The aim of this study was to determine thermal and mechanical properties and applicability of ground chestnut shell waste as a filler for poly(lactic acid) composites. The used amount of filler was ranging from 2.5 to 30 wt%. Spectroscopic analysis of composites and its ingredients was conducted by means of FT-IR method. The mechanical and thermal properties of the composites were determined in the course of static tensile test, Dynstat impact strength test, DMTA analysis, and DSC method. The fractured surface morphology of biocomposites was evaluated by SEM analysis. Incorporation of the filler influenced the overall mechanical properties of the composites characterized by high stiffness and lowered impact resistance. Fabricated composites with different amounts of non-reactive natural waste filler exhibited acceptable mechanical and thermal properties. Therefore, these composites can be used as eco-friendly, biodegradable materials for low-demanding applications.

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Section: Spectroscopic Analysis Of Composites and Its Ingredientsmentioning

confidence: 99%

Characterization of poly(lactic acid) biocomposites filled with chestnut shell waste

Barczewski

Matykiewicz

Krygier

et al. 2017

J Mater Cycles Waste Manag

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“…Yang et al [6] investigated waste rubber pow der as a filler for PLA; a silane coupling agent enhanced the interfacial structures between PLA and waste rubber powder. Tsou et al [7] used tapioca as a filler. Methylenediphenyl diisocyanate is a coupling agent that enhances the compatibility between PLA and tapioca.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable composition of poly(lactic acid) from renewable wood flour

Tsou

Chiu

et al. 2015

Polym. Sci. Ser. B

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Maleic anhydride grafted poly(lactic acid) (PLA g MAH) was prepared by blending with wood flour (WF). The effect of MAH and WF inclusion on the mechanical and thermal properties of the compos ites was examined. PLA g MAH/WF had optimum tensile properties compared with PLA/WF. Scanning electron microscopic images indicated poor interfacial adhesion of the PLA/WF. It was enhanced after MAH was grafted onto PLA; the PLA g MAH/WF showed excellent compatible morphology. Results also revealed that the biodegradation of PLA and PLA g MAH was improved with increasing of WF content.

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“…Many plasticisers are known for improving the ductility of PLA, such as poly(ethylene glycol), 35 tributyl citrate, tributyl acetyl citrate, triacetin or glycerol triacetate and triethyl acetyl citrate. [36][37][38][39][40] In this study USE was selected because it significantly improved elongation at the point of break in comparison with those of other plasticisers had been recorded. 41 Soybean oil contains 10 wt% palmitic acid, 25 wt% oleic acid, 51 wt% linoleic acid and 7 wt% linolenic acid.…”

Section: Methodsmentioning

confidence: 99%

Complex poly(lactic acid)-based biomaterial for urinary catheters: I. Influence of AgNP on properties

Raluca¹,

Bogdán

TudorachiNiţă³

et al. 2016

Bioinspired, Biomimetic and Nanobiomaterials

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The present study focused on the development of biocompatible antimicrobial/antioxidant biodegradable bionanocomposite renewable resources based on poly(lactic acid) (PLA) plasticised with epoxidised soybean oil. To the main PLA matrix hydrolysed collagen (HC) (to enhance biocompatibility), vitamin E (as antioxidant agent) and silver (Ag) nanoparticles (NPs) (for imparting antimicrobial properties for medical applications and also for active packaging) were incorporated. The blends were produced by using the classical technological flow of melt processing.The presence of the additives in the PLA matrix improved the processability and flexibility and slightly decreased the thermal properties. The specific interactions of silver NPs with the other components of nanocomposites, mainly with HC protein and vitamin E (by ionic and other types of secondary bonds), led to a better HC and vitamin E dispersion in the samples with a higher silver content (1·5%), which further caused the enhancement of the mechanical properties for high silver NP concentration. Therefore, the silver NPs were successfully embedded into the polymer matrix. The aim of this research was to improve the flexibility, biocompatibility and functionality of PLA and to obtain bionanocomposites destined for medical applications such as catheters. This first part of research deals with mechanical and thermal characterisation correlated with morphological features. Notation d 2 dimension coefficient according with Avrami-Erofeev model E 1 ,E 2 activation energies for each step n dimensional nucleation Avrami-Erofeev reaction model n 1 ,n 2 reaction orders R correlation coefficient s thermal process in one step T 10 temperature corresponding to 10 wt% mass loss T 50 temperature corresponding to 50 wt% mass loss T cc cold crystallization temperature T g glass transition temperature T m melting temperature T onset onset temperature of each thermogravimetric step TQ 1min torque after 1 min of melt processing TQ 5min torque after 5 min of melt processing TQ fin torque at end of melt processing TQ max maximum torque value on the torque-time curve W mass loss for each thermogravimetric stage W r,500°C residual mass loss DC p specific heat capacity DH cc cold crystallization enthalpy DH m melting enthalpy

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Preparation and Characterization of Bioplastic-Based Green Renewable Composites from Tapioca with Acetyl Tributyl Citrate as a Plasticizer

Cited by 70 publications

References 52 publications

Characterization of poly(lactic acid) biocomposites filled with chestnut shell waste

Characterization of poly(lactic acid) biocomposites filled with chestnut shell waste

Biodegradable composition of poly(lactic acid) from renewable wood flour

Complex poly(lactic acid)-based biomaterial for urinary catheters: I. Influence of AgNP on properties

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