scholarly journals Mechanical Properties and Biodegradability of Bamboo and Sengon Wood Thin Sheets Reinforced Poly Latic Acid (PLA) Biocomposites)

2014 ◽  
Vol 14 (2) ◽  
pp. 67
Author(s):  
S. Sujito ◽  
Hanim Munawaroh ◽  
Endhah Purwandari
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Thin Layer ◽  
Modulus Of Elasticity ◽  
Environmentally Friendly ◽  
Synthesis And Characterization ◽  
Thin Sheets ◽  
Biocomposite Material ◽  
Bamboo Reinforcement

Development of biocomposite materials based on natural fibers and environmentally friendly resins to replace composite materials made from plastic and synthetic fibers give the consideration that the biocomposite materials are environmentally friendly materials. In this paper, we discuss the synthesis and characterization of biocomposite materials using a combination of thin sheets of bamboo reinforcement and resin sengon and poly lactic acid (PLA). As controls were also carried out the synthesis and characterization of biocomposite material with a thin layer of reinforcement only sengon bamboo and wood. Characterization of tensile strength and modulus of elasticity of the material is done by using the Tensile Test Machine ASTM D 638. In the mean time, biodegradability of materials are observed made by the method of burial for 1-4 weeks. Tensile test results show that the biocomposite material reinforced with a thin sheet bamboo has a tensile strength and modulus of elasticity greater than that of the other biocomposite materials produced in this study. Meanwhile, biocomposite materials with thin layers of wood sengon reinforced easily biodegradable (dG = 13.21 ± 0.59)%, compared to a biocomposite material with a thin layer of bamboo reinforcement (dG = 10.69 ± 0.79)%. From these results it can be concluded that the composite material with a thin layer of bamboo boosters are more likely to be applied to replace metallic materials.Keywords: Biocomposites, tensile strength, elastic modulus, biodegradability, bamboo and sengon wood thin layer.

scholarly journals Synthesis and Characterization of Hydrophobic Silica Thin Layer Derived from Methyltrimethoxysilane (MTMS)

2018 ◽  
Vol 299 ◽  
pp. 012041 ◽  
Author(s):  
Adi Darmawan ◽  
Riyadini Utari ◽  
Riza Eka Saputra ◽  
Suhartana ◽  
Yayuk Astuti
Keyword(s):  
Thin Layer ◽  
Synthesis And Characterization ◽  
Hydrophobic Silica

Synthesis and characterization of environmentally friendly BiVO4 yellow pigment by non-hydrolytic sol-gel route

2019 ◽  
Vol 91 (1) ◽  
pp. 127-137 ◽  
Author(s):  
Xiaojun Zhang ◽  
Ting Chen ◽  
Yanqiao Xu ◽  
Weihui Jiang ◽  
Jianmin Liu ◽  
...  
Keyword(s):  
Sol Gel ◽  
Environmentally Friendly ◽  
Yellow Pigment ◽  
Synthesis And Characterization

On the synthesis and characterization of environmentally friendly BTNN-PVDF bulk composites

2019 ◽  
Vol 545 (1) ◽  
pp. 70-79
Author(s):  
Jaciele Marcia Rosso ◽  
Taiana Gabriela Moretti Bonadio ◽  
Valdirlei Fernandes Freitas ◽  
Eduardo Azzolini Volnistem ◽  
Gustavo Sanguino Dias ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Synthesis And Characterization

Synthesis and characterization of new poly(diketone imide)s derived from 1,4-bis(3,4-dicarboxybenzoyl)benzene dianhydride and various diamines

2020 ◽  
Vol 32 (9) ◽  
pp. 1043-1051
Author(s):  
Lu Kuang ◽  
Wei-Hong Wei ◽  
Xiao-Yan Sang ◽  
Yang Pan ◽  
Cheng Song
Keyword(s):  
Mechanical Property ◽  
Tensile Strength ◽  
Ring Opening ◽  
Tensile Modulus ◽  
Amic Acid ◽  
Synthesis And Characterization ◽  
Aromatic Diamines ◽  
Thermal Imidization ◽  
Stage Process

1,4-Bis(3,4-dicarboxybenzoyl)benzene dianhydride, an aromatic bis(ketone anhydride) monomer, was synthesized by the Friedel–Crafts reaction of terephthaloyl dichloride and o-xylene, followed by the oxidation of the intermediate tetramethylated compound and cyclodehydration of the resulting tetraacid. A series of new poly(diketone imide)s (PDKIs) were prepared from this dianhydride with various aromatic diamines via a conventional two-stage process that included ring-opening polyaddition to form the poly(amic acid)s followed by thermal or chemical imidization. Most of the PDKIs through chemical imidization were soluble in aprotic amide solvents, such as N, N-dimethylacetamide, N-methyl-2-pyrrolidone, m-cresol, and so on. The resulting PDKIs had good thermal property with the glass transition temperature of 203–275°C, the temperature at 5% weight loss of 500–539°C, and the residue of 51–60% at 800°C in nitrogen. Additionally, strong and flexible PDKI films obtained by thermal imidization exhibited outstanding mechanical property with the tensile strength of 88.8–158.5 MPa, tensile modulus of 1.9–3.5 GPa, and elongation at breakage of 7–21%.

scholarly journals Tensile Properties of Polymer Repair Materials - Effect of Test Parameters

2015 ◽  
Vol 1129 ◽  
pp. 445-452
Author(s):  
Z. Kamil ◽  
G. Andrzej ◽  
C. Sandra ◽  
A.J. Barroso
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Modulus Of Elasticity ◽  
Deformation Rate ◽  
Effect Of Temperature ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Sample Shape ◽  
Repair Materials ◽  
Test Parameters

In this research, five types of polymer repair materials were selected for investigation of the influence of sample shape, deformation rate and test temperature on the mechanical properties determined with an uniaxial tensile test. The results showed the clear effect of measurement conditions on tensile strength, elongation and modulus of elasticity. The highest tensile strength and modulus of elasticity were exhibited by epoxy resin for the filling of concrete cracks, which achieved 1% elongation. The lowest coefficient of dispersion characterized the results of tensile test carried out using dumbbell samples at a deformation rate of 50 mm/min. The effect of temperature varied with the material type.

scholarly journals Pengaruh Penambahan Carboxymethyl Cellulose Terhadap Karakteristik Bioplastik Dari Pati Ubi Nagara (Ipomoea batatas L.)

2019 ◽  
Vol 7 (1) ◽  
pp. 77-85
Author(s):  
Dahlena Ariyani ◽  
Erni Puryati Ningsih ◽  
Sunardi Sunardi
Keyword(s):  
Tensile Strength ◽  
Carboxymethyl Cellulose ◽  
Ipomoea Batatas ◽  
Water Resistance ◽  
Transmission Rate ◽  
Synthesis And Characterization ◽  
Water Vapor Transmission Rate ◽  
Sweet Potatoes ◽  
Water Vapor Transmission

Synthesis and characterization of bioplastics from Nagara sweet potatoes (Ipomoea batatas L) starch with carboxymethyl cellulose (CMC) as a filler has been conducted. The purpose of this study was to evaluate the effects of CMC addition on the characteristic of bioplastics from Nagara sweet potato (Ipomoea batatas L) starch. Bioplastic synthesis was carried out by the melt intercalation method with variations in the amount of CMC 0-30% (w/w). Bioplastics were analyzed using FTIR spectrophotometer, thickness, solubility, water resistance, water vapor transmission rate, tensile strength and elongation. The values of the tensile strength of the bioplastic produced increases with increasing of CMC. The results also showed that the optimum CMC concentration in bioplastics production is 9% (w/w) with a tensile strength value 0.5281 N/mm2.

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