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dc.contributor.authorSrithep, Yotthaen_US
dc.contributor.authorยศฐา ศรีเทพen_US
dc.contributor.authorHongkhaum, Nutthagornen_US
dc.contributor.authorณัฐกรณ์ หงษ์คำen_US
dc.contributor.authorTakhot, Padcharaen_US
dc.contributor.authorพัชระ ตะโคตรen_US
dc.date.accessioned2021-08-07T09:25:59Z
dc.date.available2021-08-07T09:25:59Z
dc.date.issued2021-08-07
dc.identifier.issn2651-1096
dc.identifier.urihttp://repository.rmutp.ac.th/handle/123456789/3608
dc.descriptionวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 14, ฉบับที่ 2 (ก.ค.-ธ.ค. 2563), หน้า 98-109en_US
dc.description.abstractThis research was concentrated on characterized mechanical properties and adjusted compatibility of poly (lactic acid) (PLA) with thermoplastic starch (TPS) as biodegradable polymers composites. PLA was blended with TPS at the proportion of 10, 20, 30, 50, and 70 wt% as well as 2 phr chain extender by an internal mixer at 200°C. The blended materials were then injection molded at 230°C. Tensile testing showed that as the amount of TPS increase, the elongation at break tended to increase but the tensile strength and modulus tended to decrease. The morphology was investigated by scanning electron microscope. It was found that distinct phase between PLA and TPS was observed. Yet, adding the chain extender clearly improved the compatibility between PLA and TPS. The blended materials were also analyzed by differential scanning calorimetry method to study thermal properties. It was found that, as the amount of TPS increased, the glass transition temperature (Tg), melting temperature (Tm), and cold crystallization temperature (Tcc) deceased. Additionally, chain extenders did not affect thermal properties. The thermal stability of the composites decreased when increasing the amount of TPS because of the degradation of TPS in PLA. However, when heated at 100ºC for 1 hr, the PLA sample bent while TPS did not bend. When PLA was mixed with TPS, the composite was bent according to adding TPS.en_US
dc.description.sponsorshipRajamangala University of Technology Phra Nakhonen_US
dc.language.isothen_US
dc.subjectPlasticsen_US
dc.subjectพลาสติกen_US
dc.subjectThermoplasticsen_US
dc.subjectเทอร์โมพลาสติกen_US
dc.subjectInjection molding of plasticsen_US
dc.subjectการฉีดขึ้นรูปพลาสติกen_US
dc.titleCharacterization of bioplastics poly (lactic acid) blended with thermoplastic starchen_US
dc.title.alternativeการวิเคราะห์การผสมพลาสติกชีวภาพพอลิแลคติกแอซิดและเทอร์โมพลาสติกสตาร์ชen_US
dc.typeJournal Articlesen_US
dc.contributor.emailauthoryottha.s@msu.ac.then_US
dc.contributor.emailauthorarit@rmutp.ac.then_US


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