Flexural Strength and Load–Deflection Behaviour of Hybrid Thermoset Composites of Wood and Canola Biopolymers

Author(s):  
Ikra Iftekhar Shuvo ◽  
Md. Saiful Hoque ◽  
Md. Shadhin ◽  
Lovely K. M. Khandakar
2019 ◽  
Vol 12 (1) ◽  
pp. 27
Author(s):  
Nasmi Herlina Sari ◽  
Agus Dwi Catur ◽  
Ahmad Safii

Serat Corypha utan lamarck, yang kaya selulosa, murah, berlimpah memiliki potensi untuk penguatan pada komposit termoset. Penelitian ini bertujuan untuk menyelidiki sifat-sifat dari komposit epoksi berpenguatan serat Corypha utan lamarck. Pembuatan komposit telah dilakukan dengan menggunakan teknik vacuum bagging. Efek penambahan fraksi volume serat Corypha Utan (CU) dengan variasi 20, 25 dan 30 % (fraksi volume) terhadap morpologi, sifat kekuatan tarik dan lentur dari komposit telah diselidiki dan dianalisa. Hasil studi menunjukkan bahwa penambahan fraksi volume serat Corypha Utan secara siknifikan meningkatkan kekuatan tarik dan lentur dari komposit; dikarenakan penyebaran serat merata dalam resin, dan interface yang cukup kuat terbentuk antara serat dan epoksi. Komposit CU/epoksi dengan variasi fraksi volume serat 30% (spesimen  komposit CUh) memiliki nilai kekuatan dan modulus tarik sebesar tur paling tinggi sebesar 28.13 MPa dan 39.40 MPa, berturut-turut. Modulus lentur paling tinggi dimiliki oleh komposit dengan fraksi volume serat CU sebesar 30%. Analisa foto SEM memperlihatkan ikatan interface antara serat-epoksi dan fiber breakage. Hasil ini menunjukkkan bahwa komposit Cu/epoksi dapat menjadi alternatif  sebagai papan komposit komersil.  Corypha Utan fiber, which is rich cellulose, cheap and abundant has the potential for reinforcement in thermoset composites. This study aim is to investigate the properties of epoxy composites reinforced Corypha Utan fibers. The manufacture of composite has been done using vacuum bagging technique. The effect of increasing of the volume fraction of the Corypha utan fibers with variations of 20, 25 dan 30 % (volume fraction) on morphology, the tensile and flexural strength of composites have been investigated and analyzed. The results show that the increase of the volume fraction of Corypha utan fibers significantly increased tensile and flexural of composites; it is due to the dispersion of the fibers in epoxy, and interface bond between fiber and epoxy formed strong enough. The CU/epoxy composite with the volume fraction of the fiber of 30% (Composite CUh specimens) has the highest tensile and flexural strength value of 28,13 MPa and 39,400 MPa, respectively. The moduli’s flexural gives higher value at 30% volume fraction. SEM images demonstrate that interfacial adhesions between fiber-epoxy, and fiber breakage. The result suggests that Corypha utan fibers/epoxy composites can be a good alternative as commercial composites boards, especially for interior applications.


2011 ◽  
Vol 3 (1) ◽  
pp. 15
Author(s):  
Arhamsyah Arhamsyah

Research on the utilization of bamboo as a raw material layer interior products have been made. This research aims to determine the nature of plybamboo in terms of technical aspects / processes of manufacture, physical and mechanical, the influence of weight variation labur adhesive, adhesive types and kinds of bamboo products plybamboo.This type of bamboo used is sweet bamboo (Gigantochloa atter Kurz) and bamboo lear (Gigantochloa apus Kurz).The adhesive used was adhesive Polyvinil Acetat (PVAc) and Chloroprene with adhesive labur weight each - each 150 gr/m2, 200 gr/m2 and 250 gr/m2. The parameters tested were water content, density, flexural strength of dry and delamination.The results showed that the treatment using bamboo material with adhesive Chloroprene sweet heavy labur 250 gr/m2 produce the best plybamboo.Keywords: bamboo, glue, physical, mechanical


1991 ◽  
Vol 40 (449) ◽  
pp. 192-198
Author(s):  
Yasushi MIYANO ◽  
Yukio TAKAMURA ◽  
Megumu SUZUKI ◽  
Michihiro MOHRI

2019 ◽  
Vol 61 (4) ◽  
pp. 369-375
Author(s):  
Sivalingam Prabhakaran ◽  
Vijayan Krishnaraj ◽  
Mouleeswaran Senthilkumar ◽  
Redouane Zitoune ◽  
Krishna Shankar

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