scholarly journals A study on flexural and water absorption of surface modified rice husk flour/E-glass/polypropylene hybrid composite

2016 ◽  
Vol 152 ◽  
pp. 012061
Author(s):  
K Rassiah ◽  
T W Sin ◽  
M Z Ismail
Keyword(s):  
Water Absorption ◽  
Rice Husk ◽  
Hybrid Composite ◽  
Rice Husk Flour ◽  
Surface Modified

Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites

2014 ◽  
Vol 132 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ruey Shan Chen ◽  
Mohd Hafizuddin Ab Ghani ◽  
Mohd Nazry Salleh ◽  
Sahrim Ahmad ◽  
Mou'ad A. Tarawneh
Keyword(s):  
Water Absorption ◽  
Polymer Blend ◽  
Rice Husk ◽  
Rice Husk Flour ◽  
Recycled Polymer

MAgPP an Effective Coupling Agent in Rice Husk Flour Filled Polypropylene Composites

2007 ◽  
Vol 537-538 ◽  
pp. 137-144 ◽  
Author(s):  
György Czél ◽  
Zoltán Kanyok
Keyword(s):  
Rice Husk ◽  
Coupling Agent ◽  
Weak Coupling ◽  
Cellulosic Fibre ◽  
Effective Coupling ◽  
Polypropylene Composite ◽  
Filling Degree ◽  
Polypropylene Composites ◽  
Composite Systems ◽  
Rice Husk Flour

Different properties (tensile strength, elongation, modulus, impact strength) of rice husk (RH) reinforced polypropylene (PP) coupled by Maleic-Anhydride grafted Polypropylene (MAgPP) have been investigated. MAgPP is an effective coupling agent, not only in cellulosic-fibre filled polyolefine composites, but in rice husk flour filled polypropylene composite systems as well. It gives a utilizable construction polymer matrix composite (PMC) material even at a 40 wt.% RH filling degree. The strength and modulus increases by adding the rice husk but the elongation decreases in a non-monotonic way. Micrographs shows weak coupling in between RH and PP without MAgPP.

scholarly journals Investigations on the Mechanical Properties of Glass Fiber/Sisal Fiber/Chitosan Reinforced Hybrid Polymer Sandwich Composite Scaffolds for Bone Fracture Fixation Applications

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1501 ◽  
Author(s):  
Soundhar Arumugam ◽  
Jayakrishna Kandasamy ◽  
Ain Umaira Md Shah ◽  
Mohamed Thariq Hameed Sultan ◽  
Syafiqah Nur Azrie Safri ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Glass Fiber ◽  
Bone Fracture ◽  
Hybrid Composite ◽  
Bone Structure ◽  
Hybrid Composites ◽  
Sisal Fiber ◽  
Composite Scaffolds ◽  
Study Results

This study aims to explore the mechanical properties of hybrid glass fiber (GF)/sisal fiber (SF)/chitosan (CTS) composite material for orthopedic long bone plate applications. The GF/SF/CTS hybrid composite possesses a unique sandwich structure and comprises GF/CTS/epoxy as the external layers and SF/CTS/epoxy as the inner layers. The composite plate resembles the human bone structure (spongy internal cancellous matrix and rigid external cortical). The mechanical properties of the prepared hybrid sandwich composites samples were evaluated using tensile, flexural, micro hardness, and compression tests. The scanning electron microscopic (SEM) images were studied to analyze the failure mechanism of these composite samples. Besides, contact angle (CA) and water absorption tests were conducted using the sessile drop method to examine the wettability properties of the SF/CTS/epoxy and GF/SF/CTS/epoxy composites. Additionally, the porosity of the GF/SF/CTS composite scaffold samples were determined by using the ethanol infiltration method. The mechanical test results show that the GF/SF/CTS hybrid composites exhibit the bending strength of 343 MPa, ultimate tensile strength of 146 MPa, and compressive strength of 380 MPa with higher Young’s modulus in the bending tests (21.56 GPa) compared to the tensile (6646 MPa) and compressive modulus (2046 MPa). Wettability study results reveal that the GF/SF/CTS composite scaffolds were hydrophobic (CA = 92.41° ± 1.71°) with less water absorption of 3.436% compared to the SF/CTS composites (6.953%). The SF/CTS composites show a hydrophilic character (CA = 54.28° ± 3.06°). The experimental tests prove that the GF/SF/CTS hybrid composite can be used for orthopedic bone fracture plate applications in future.

scholarly journals Development of Environmentally Friendly Brake Lining Material

2019 ◽  
Vol 120 ◽  
pp. 03005
Author(s):  
I K. Adi Atmika ◽  
IDG. Ary Subagia ◽  
IW. Surata ◽  
IN. Sutantra
Keyword(s):  
Wear Rate ◽  
Water Absorption ◽  
Hybrid Composite ◽  
Environmentally Friendly ◽  
Fixed Temperature ◽  
Brake Pads ◽  
Environment And Health ◽  
Pin On Disc ◽  
Water Absorption Test ◽  
Brake Lining

Materials commonly used as brake pads are asbestos and alloys, but this material is very dangerous to the environment and health. This research was developed to answer these problems, namely to look for alternative brake pads that have good mechanical and structural properties and are environmentally friendly. Brake lining pads material is made from hybrid composite reinforced basalt, shells, alumina and bound using phenolic resin polymer (PR-51510i). This brake pads material is produced through a sintering process with an emphasis of 2000 kg for 30 minutes at a fixed temperature of 160°C. This hybrid composite is made in as many as five variations, each of which is tested for wear resistance using a pin on disc test based on ASTM G 99-95a standards, while destilled water absorption test was based on ASTM D 570-98. The greatest wear rate is 0.000090 g/cm, which is still lower than wear rate of asbestos brake pad materials, and the highest destilled water absorption of the brake pads specimens obtained was 0.041558 still lower than the destilled water absorption of asbestos brake pads.

scholarly journals Comparative Strength and Cost of Rice Husk Concrete Block

2019 ◽  
Vol 280 ◽  
pp. 04002
Author(s):  
Setya Winarno
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Rice Husk ◽  
Concrete Block ◽  
Strength Analysis ◽  
Normal Concrete ◽  
Comparative Cost ◽  
Concrete Production ◽  
Sustainable Materials ◽  
The Cost

This research presents a comparative cost and strength analysis of rice husk concrete block which is aimed at reducing the cost of concrete production and emphasizing environmentally and friendly sustainable materials. Concrete block materials consist of cement, filler, and rice husk. Tests were performed to compare the strength and cost of seven cement rice husk weight ratios designated ranging from 0.67 to 2.00 with constant water cement ration of 0.4. Samples have been tested for 28-day strength. The analysis of the results has showed that the higher proportions of rice husk correspond to decreased strength dan cost polynomially. At 134% proportion of rice husk, it is optimum value for rice husk concrete block. In this point, the compressive strength satisfies the standard. Also, water absorption of 16,04% justifies the maximum standard. Overall, the cost of 134% RH concrete is Rp 511,809 per m3 which is 42.5% cheaper than normal concrete block.

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