Effect of bacterial cellulose on properties of poly(lactic acid)

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dc.contributor.authorPoonsub Threepopnatkul
dc.contributor.authorAmnard Sittattrakul
dc.contributor.authorKarn Supawititpattana
dc.contributor.authorPanat Jittiarpon
dc.contributor.authorPhumin Raksawat
dc.contributor.authorChanin Kulsetthanchalee
dc.contributor.correspondenceP. Threepopnatkul; Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand; email: poonsubt@yahoo.com
dc.date.accessioned2025-03-10T07:36:30Z
dc.date.available2025-03-10T07:36:30Z
dc.date.issued2017
dc.description.abstractThe aim of this research is to study the mechanical and thermal properties of composites based on poly(lactic acid) (PLA) by using bacterial cellulose (BC) as a reinforcement. BC is produced by Acetobacterxylinum. To improve the interfacial adhesion between the BC and PLA matrix, BC is treated with different types of silane coupling agents (BC: Silane = 1: 0.00943) namely 3-aminopropyltrimethoxysilane (APS), N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (DMS) and N1-(3-trimethoxysilyl propyl) diethylenetriamine (TMS). PLA is also modified with maleic anhydride (MA) in order to improve the electrophilicity property of PLA. In this work, reactive composites of BC reinforced PLA are prepared using a melt compounding process with twin screw extruder and injection molding machine. The effect of various silane coupling agents of 3 types and various contents of BC (1, 3, 5wt%) on mechanical and thermal properties are studied by using universal testing machine, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The DSC analysis is shown that the addition of BC particles significantly affect the crystallization rate of PLA because BC particles can act as a nucleating agent. The addition of 5 wt% BC to PLA provides more crystalline region than BC addition of 3 wt% and 1 wt% to PLA. Moreover, PLA composite with BC modified by TMS has the highest crystalline volume, followed by the DMS and APS, respectively. Young's modulus of PLA/5 wt% BC-TMS composite has the greatest increase compared with neat PLA. Moreover, PLA composites with BC treated by DMS have higher modulus than the one that is treated with APS. � 2017 Elsevier Ltd. All rights reserved.
dc.identifier.citationMaterials Today: Proceedings
dc.identifier.doi10.1016/j.matpr.2017.06.174
dc.identifier.issn22147853
dc.identifier.scopus2-s2.0-85028410927
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4803
dc.languageEnglish
dc.publisherElsevier Ltd
dc.rights.holderScopus
dc.subjectBacterial cellulose
dc.subjectMechanical properties
dc.subjectPoly(lactic acid)
dc.subjectThermal properties
dc.titleEffect of bacterial cellulose on properties of poly(lactic acid)
dc.typeConference paper
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85028410927&doi=10.1016%2fj.matpr.2017.06.174&partnerID=40&md5=b22940e39be8c61974bb383086b9911d
oaire.citation.endPage6614
oaire.citation.issue5
oaire.citation.startPage6605
oaire.citation.volume4
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