Produksi Bioplastik dari Sorgum dan Selulosa Secara Termoplastik

Darni, Yuli; Sitorus, Tosty Maylangi; Hanif, Muhammad

doi:10.23955/rkl.v10i2.2420

Cited by 24 publications

(20 citation statements)

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“…Addition chitosan can also undergo chemical bonding interactions with starch during the mixing process. Chemical bonds in the material can affect the mechanical strength, it is depending on the amount and type of chemical bonds (covalent bonds, hydrogen and van der walls) [24]. On the addition of chitosan, there are interaction between chitosan and starch suspension which are supported by the results of FT-IR showed an increase in wave numbers O-H groups and N-H groups on bioplastics.…”

Section: Mechanical Properties Of Bioplasticmentioning

confidence: 91%

Effect of Hydrochloric Acid Concentration as Chitosan Solvent on Mechanical Properties of Bioplastics from Durian Seed Starch (Durio Zibethinus) with Filler Chitosan and Plasticizer Sorbitol

Ginting

Hasibuan

Lubis

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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The production of starch based bioplastic from durian seed as polymer matrix with addition of chitosan as filler and sorbitol as plasticizer were investigated. The aim of this research to obtain the effect of hydrochloric acid concentration as chitosan solvent on the mechanical properties of bioplastics included tensile strength, elongation at break, modulus young, functional group using FT-IR, surface morphology using SEM. Starch is the raw material for bioplastics which extracted by the durian seeds, then characterized to determine its chemical composition. The method of bioplastic production used in this research was casting method. Variation of hydrochloric acid concentration used 0.9%v, 1.0%v, 1.1%v, 1.2%v and 1.3%v. Bioplastic were analyzed physical and chemical properties. From the analysis, best condition of bioplastics obtained at hydrochloric acid concentration 0,9%v with temperature 70 o C for tensile strength 10,629 MPa, elongation at break 8,207%, and modulus young 129,514 MPa. From the results of FT-IR analysis indicated O-H group and N-H group on bioplastics due to the addition of chitosan and sorbitol. The results of mechanical properties were supported by Scanning Electron Microscopy (SEM) showed the bioplastic with chitosan as filler and plasticizer sorbitol have the fracture surfaces were a bit rough and jagged.

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Section: Mechanical Properties Of Bioplasticmentioning

confidence: 91%

Effect of Hydrochloric Acid Concentration as Chitosan Solvent on Mechanical Properties of Bioplastics from Durian Seed Starch (Durio Zibethinus) with Filler Chitosan and Plasticizer Sorbitol

Ginting

Hasibuan

Lubis

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The small value of water uptake indicate the better level of the water resistance and vice versa [26]. The concentration PVA (1%) significantly changed the water uptake but not in PVA 0.25-0.75%.…”

Section: Water Uptakementioning

confidence: 91%

Improving Properties of Arrowroot Starch (Maranta arundinacea)/PVA Blend Films by Using Citric Acid as Cross-linking Agent

Sholichah

Purwono

Nugroho

2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. This research studied the effect of PVA as organic polymer and citric acid as crosslinker agent in the arrowroot starch/PVA blend films. The properties of films were investigated by water uptake, water vapor permeability, mechanical properties, thermal stability, spectra of FTIR and XRD patterns. PVA used in this research influenced the film properties at the highest concentration. The cross-linkingsinter or intra molecules of arrowroot and PVA were developed as ester bonds which are formed from the reaction of hydroxyl groups consisting of starch and PVA with citric acid. The ester bond was confirmed by FTIR spectra. The increase of the amount of citric acid affected significantly on physical, chemical and mechanical properties, water uptake, WVP and crystallinity. Water barrier level was reduced by decreasing of water uptake and WVP succeeded significantly with increased crosslinking. Cross-linking impact the thermal stability of the films. The elasticity of the films also increases the production of citric acid as a plasticizer in the making of the films as a food packaging material.

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“…Prosedur penentuan densitas sesuai yang dilakukan oleh Darni (2014). Massa, m (gr) sampel yang akan diuji ditimbang dengan menggunakan timbangan digital.…”

Section: Uji Densitasunclassified

“…Penambahan pemplastik berpengaruh nyata terhadap nilai densitas bioplastik (Bahmid, 2014). Nilai densitas dari LDPE sendiri berkisar antara 0,91-0,925 gr/ml (Darni, 2014 (Darni, 2014). Selain itu, kandungan selulosa dalam bioplastik juga mempengaruhi penyerapan air sehingga penyerapan air meningkat dengan meningkatnya kandungan selulosa karena peningkatan jumlah gugus hidroksil (Yusriah dkk, 2012).…”

Section: Densitas Film Bioplastikunclassified

pemanfaatan selulosa dari limbah kulit buah pinang sebagai bahan baku pembuatan bioplastik

Tamiogy

Kardisa²,

Hisbullah³

et al. 2019

J. Rekayasa Kim. Lingkung.

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Bioplastik adalah salah satu jenis plastik yang terbuat dari sumber biomassa terbarukan. Selulosa dari kulit buah pinang berpotensi sebagai bahan baku pembuatan bioplastik dengan menggunakan gliserol sebagai plastizicer. Tujuan penelitian ini untuk membuat film plastik biodegradable, dimana prosedur penelitian adalah isolasi alfa-selulosa dengan metode delignifikasi, pembuatan bioplastik dengan metode solution casting dan karakterisasi bioplastik. Selulosa yang telah diekstraksi dari kulit buah pinang digunakan untuk pembuatan film plastik. Ekstraksi selulosa menggunakan variasi konsentrasi NaOH saat delignifikasi sebesar 15%, 20%, dan 25% dan bleaching dengan NaOCl 3,5%. Sedangkan pembuatan film plastik menggunakan variasi perbandingan gliserol 0,5 gram, 1 gram, dan 1,5 gram. Dimana karakteristik bioplastik terbaik pada penelitian ini diperoleh pada konsentrasi pelarut NaOH 20% dengan penambahan gliserol 1,5 gram di dapat densitas sebesar 0,3 gr/ml, daya serap terhadap air 128,57%, kuat tarik sebesar 14,57 kgf/mm2, dan % elongasi sebesar 5,44%

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Produksi Bioplastik dari Sorgum dan Selulosa Secara Termoplastik

Cited by 24 publications

References 0 publications

Effect of Hydrochloric Acid Concentration as Chitosan Solvent on Mechanical Properties of Bioplastics from Durian Seed Starch (Durio Zibethinus) with Filler Chitosan and Plasticizer Sorbitol

Effect of Hydrochloric Acid Concentration as Chitosan Solvent on Mechanical Properties of Bioplastics from Durian Seed Starch (Durio Zibethinus) with Filler Chitosan and Plasticizer Sorbitol

Improving Properties of Arrowroot Starch (Maranta arundinacea)/PVA Blend Films by Using Citric Acid as Cross-linking Agent

pemanfaatan selulosa dari limbah kulit buah pinang sebagai bahan baku pembuatan bioplastik

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