Alkali Treatment of Screw Pine (<i>Pandanus Odoratissimus</i>) Fibers and Its Effect on Unsaturated Polyester Composites

Abral, Hairul; Gafar, M. Fitra; Andriyanto, Heri; Ilhamdi,; Sapuan, S. M.; Ishak, Mohamad Ridzwan; Evitayani,

doi:10.1080/03602559.2011.593090

Cited by 36 publications

(11 citation statements)

References 19 publications

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“…TS value of pure PO is 38.3 MPa that is a little bit lower than other TS of PO from referees [5]. As shown in the figure 1 that strength of pure PO matrix is higher than that of all composite strength after being mixed by BC sheets of nanofibers.…”

Section: Tensile Strengthmentioning

confidence: 86%

Tensile properties of bacterial cellulose nanofibers - polyester composites

Abral

Mahardika

2016

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

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Section: Tensile Strengthmentioning

confidence: 86%

Tensile properties of bacterial cellulose nanofibers - polyester composites

Abral

Mahardika

2016

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

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“…Salah satu usaha untuk memperbaiki sifat serapan uap air tersebut adalah penambahan serat alam. Fungsi serat alam adalah mencegah molekul air untuk berdifusi ke dalam matriks pati [3,4]. Salah satu kandidat serat alam adalah akar buah naga.…”

Section: Pendahuluanunclassified

Karakteristik Serapan Uap Air Dan Ftir Dari Biokomposit Pati Tapioka Diperkuat Serat Akar Buah Naga (Hylocereus Polyrhizus)

Asrofi

Abral

Kasim

et al. 2018

SPEKTRA

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Abstrak Biokomposit dari pati tapioka dan serat akar buah naga telah berhasil dibuat. Sebanyak 0, 2, 4, dan 6% serat (dari berat kering pati) digunakan sebagai penguat biokomposit. Fabrikasi biokomposit menggunakan metode solution casting. Pengujian serapan uap air digunakan untuk mengetahui persentase penyerapan uap air. Gugus fungsi dari biokomposit ditentukan dengan karakterisasi FTIR (Fourier Transform Infra-Red). Persentase penyerapan uap air menunjukkan bahwa, film pati tapioka mempunyai serapan uap 21,7%. Hasil ini lebih tinggi dibandingkan dengan film tapioka ditambah serat. Fenomena ini didukung dengan analisis FTIR pada gugus serapan air sekitar wavenumber 1647 cm-1. Pada daerah tersebut terlihat bahwa, film pati tapioka memiliki absorban yang tinggi dibandingkan film pati tapioka ditambah serat. Kata-kata kunci: biokomposit, pati tapioka, serat akar buah naga, FTIR, serapan uap air. Abstract Tapioca starch biocomposites reinforced dragon fruit root fiber was successfully produced. As much 0, 2, 4 and 6% fiber fractions (from dry starch weight basis) were used as reinforcement in biocomposites. The fabrication of biocomposites was solution casting method. Moisture absorption testing was used to know the percentage of moisture absorption. The functional group of biocomposites was determined by FTIR (Fourier Transform Infra-Red) characterization. The moisture absorption percentage of tapioca starch film was 21,7%. This result was higher than fiber-reinforced biocomposites film. This phenomenon was supported by FTIR analysis on functional group (water absorption band) at wavenumber 1647 cm-1. In this wavenumber, tapioca starch film has higher absorbance than fiber-reinforced biocomposites film. Keywords: biocomposites, tapioca starch, dragon fruit root fiber, FTIR and moisture absorption.

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“…This is due to the fact that some the fibers was not glued effectively by the matrix, and not dispersed homogeneously in the matrix [11,12]. Because of high volume content of fibers, agglomeration is possible to exist in the composite matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of vibration duration of high ultrasound applied to bio-composite while gelatinized on its properties

Abral

Putra

Asrofi

et al. 2018

Ultrasonics Sonochemistry

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A B S T R A C TThis article reports effect of vibration duration of high ultrasound applied to bio-composite while gelatinized on its properties. The bio-composite consists of mixing of both the tapioca starch based bioplastic and oil palm empty fruit bunch (OPEFB) fibers with high volume fraction. Gelatinization of the bio-composite sample was poured into a rectangular glass mold placed then in an ultrasonic bath with 40 kHz, and 250 watt in different duration for 0, 15, 30, 60 min respectively. The results show that vibration during gelatinization has changed the characterisation of the bio-composite. SEM photograph displayed different fracture surface of tensile sample. For vibration duration of 60 min, tensile strength (TM), and tensile modulus (TM) was improved to 64.4, 277.4%, respectively, meanwhile strain was decreased to 35.1% in comparison without vibration. Fourier Transform Infrared Spectroscopy (FTIR), and XRD diffraction of the bio-composite has changed due to various vibration duration. Moisture absorption of the vibrated bio-composite was lower than that of the untreated one.

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Alkali Treatment of Screw Pine (Pandanus Odoratissimus) Fibers and Its Effect on Unsaturated Polyester Composites

Cited by 36 publications

References 19 publications

Tensile properties of bacterial cellulose nanofibers - polyester composites

Tensile properties of bacterial cellulose nanofibers - polyester composites

Karakteristik Serapan Uap Air Dan Ftir Dari Biokomposit Pati Tapioka Diperkuat Serat Akar Buah Naga (Hylocereus Polyrhizus)

Effect of vibration duration of high ultrasound applied to bio-composite while gelatinized on its properties

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