Influence of fiber content on the mechanical and dynamic mechanical properties of glass/ramie polymer composites

Romanzini, Daiane; Lavoratti, Alessandra; Ornaghi, Heitor Luiz; Amico, Sandro Campos; Zattera, Ademir J.

doi:10.1016/j.matdes.2012.12.029

Cited by 225 publications

(130 citation statements)

References 24 publications

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“…All the curves reach a peak in the temperature range from 91 to 113°C (T g ), see Table 2 According to [23], the incorporation of fibers in the PM should lower the tan % peak due to the greater restriction of the polymer chains caused by the presence of fibers. In contrast to the literature, here the …”

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

“…A dynamic mechanical analysis (DMA), where the storage modulus (E'), loss modulus (E'') and damping loss factor (tan %) are measured as a function of temperature and frequency, was found to be useful in correlating the mechanical properties with the microstructure of the material [19][20][21][22]. Recently, studies were made of the influence of various glass/natural-fiber volume fractions, such as ramie and curaua fibers, on the dynamic mechanical properties [23,24]. The aim of this study was to correlate the microstructural features, i.e.…”

Section: Introductionmentioning

confidence: 99%

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A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties

Bertoncelj¹,

Vojisavljević²,

Rihtarsic³

et al. 2016

Express Polym. Lett.

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Abstract. Voronoi analysis is implemented to assess the influence of fiber content on the microstructure and mechanical properties of bulk-molding compounds containing different weight fractions of E-glass fibers (EGF) (5-20 wt%). The fiber distribution in the polymer matrix is analyzed by scanning electron microscopy followed by the Voronoi tessellations, radial distribution function and statistical calculations. The experimental results are compared to modelled microstructures. The derived microstructural descriptors allow us to correlate the fiber weight content and the degree of fiber distribution homogeneity with the mechanical properties of EGF-reinforced composites. The distribution of fibers in composites with 10 and 15 wt% of fibers could be considered as the most homogeneous. This is in a good agreement with the results of the flexural strength and dynamic mechanical analyses, which confirmed that the latter samples exhibit the highest level of reinforcement.

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Section: Dynamic Mechanical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties

Bertoncelj¹,

Vojisavljević²,

Rihtarsic³

et al. 2016

Express Polym. Lett.

View full text Add to dashboard Cite

show abstract

“…These materials are also less abrasive to processing equipment compared to synthetic fibers, which becomes very important when equipment costs are high [1][2][3] . Major advantages of synthetic fibers over natural fibers include lower moisture absorption of the former and their better adhesion with the polymer matrix 4 . An important drawback preventing wider exploitation of natural fibers is their hydrophilic character, which is incompatible with the hydrophobic character of the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Influence of Stacking Sequence on the Mechanical and Dynamic Mechanical Properties of Cotton/Glass Fiber Reinforced Polyester Composites

et al. 2016

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“…Pemanenan dapat menghasilkan 26 ton batang basah dengan rendemen sebesar 3,5 -4% (sekitar 1,3 ton serat rami per hektar) tergantung kondisi lingkungan dan perawatannya (Rifaida, 2009). Serat rami merupakan salah satu serat alam untuk bahan tekstil (Kalita et al, 2013), namun dapat dimanfaatkan juga untuk aplikasi lainnya seperti komposit peredam suara (Rifaida, 2009;Yang and Li, 2012), interior automotif (Romanzini et al, 2013), pulp (Sugesty et al, 1999), dan kertas (Wirawan et al, 2010).…”

Section: Pendahuluanunclassified

PENGARUH APLIKASI JAMUR PELAPUK PUTIH PADA BIOPULPING RAMI (<i>Boehmeria nivea</i>) TERHADAP KUALITAS PULP BELUM PUTIH (<i>EFFECT OF WHITE ROT FUNGI APPLICATION IN BIOPULPING OF RAMIE (Boehmeria Nivea) ON THE QUALITY OF UNBLEACHED PULP</i>)

Purwita

Risdianto

2016

J selulosa

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The research of white rot fungi application in biopulping ramie has been done to obtain the effective fungus. The ABSTRAKPenelitian aplikasi jamur pelapuk putih pada biopulping rami telah dilakukan dengan tujuan mendapatkan jenis jamur yang efektif. Penelitian dilakukan dalam 3 tahap : biopulping, pemasakan, dan pembuatan lembaran pulp. Biopulping rami dilakukan dengan variasi 4 spesies jamur, yaitu Phanerochaete chrysosporium, Marasmius sp., Trametes hirsuta, dan Trametes versicolor, pada kondisi suhu ±28 °C selama 7 hari. Pemasakan dilakukan terhadap rami dari perlakuan biopulping terpilih dan dibandingkan dengan rami tanpa perlakuan jamur. Percobaan pemasakan dilakukan dengan proses soda dalam digester berputar pada kondisi alkali aktif 12%, rasio padatan terhadap cairan pemasak 1:5, suhu 165°C, waktu 3,5 jam. Selanjutnya, dilakukan pembuatan lembaran pulp rami. Pengamatan dilakukan terhadap persentase penyisihan lignin, bilangan Kappa, indek sobek, dan indeks retak. Hasil penelitian menunjukkan bahwa Marasmius sp. dengan aktivitas lakase 0,1638 U/mL merupakan yang terbaik dengan derajat penyisihan lignin 40,4%. Proses pemasakan rami dengan perlakuan Marasmius sp. menghasilkan pulp belum putih dengan bilangan Kappa lebih rendah 7,2% dibandingkan tanpa perlakuan jamur. Kualitas pulp yang telah diberi perlakuan jamur Marasmius sp. menghasilkan pulp belum putih yang lebih baik, dengan sifat fisik indeks retak dan indeks sobek berturut-turut 10,52 mNm 2 /g dan 1,24 kN/g.

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Influence of fiber content on the mechanical and dynamic mechanical properties of glass/ramie polymer composites

Cited by 225 publications

References 24 publications

A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties

A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties

Influence of Stacking Sequence on the Mechanical and Dynamic Mechanical Properties of Cotton/Glass Fiber Reinforced Polyester Composites

PENGARUH APLIKASI JAMUR PELAPUK PUTIH PADA BIOPULPING RAMI (<i>Boehmeria nivea</i>) TERHADAP KUALITAS PULP BELUM PUTIH (<i>EFFECT OF WHITE ROT FUNGI APPLICATION IN BIOPULPING OF RAMIE (Boehmeria Nivea) ON THE QUALITY OF UNBLEACHED PULP</i>)

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