The Tensile and Flexural Forces of Acropora Reef Waste Particulate-Enchanced Polyester Composites

2021 ◽  
Vol 896 ◽  
pp. 21-27
Author(s):  
Akmal Raka Pamungkas ◽  
I Wayan Surata ◽  
Tjokorda Gde Tirta Nindhia
Keyword(s):  
Coral Reef ◽  
Mass Fraction ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Flexure Strength ◽  
Polyester Matrix ◽  
Polyester Composites ◽  
Tensile Test Result ◽  
Test Result ◽  
Flexure Test

Composite is a material that combines two or more materials that basically dissimilar chemical or physical properties from one another. In this research, we used Acropora coral reef waste particulate and Resin Polyester BQTN type 157 with Methyl ethyl ketone peroxide (MEKP) 1% as the hardener. The Hand Lay-Up molding technique is used in the process of making the material. The tensile and flexure test is done according to the ASTM D3090 and ASTM D790 – 03 standards. The purpose of this research is to discover the means to produce a composite enhanced by Acropora coral reef waste with polyester matrix and to learn the tensile and flexure strength from the Acropora coral reef waste particulate-enhanced polyester composites with mass fraction varieties of 10%, 20%, 30%, and 40%. The tensile test result of Acroporal coral reef waste particulate with polyester matrix yields average tensile strength at mass fraction variety of 40% with a score of 19,66 MPa, with an Modulus score of 636,75 MPa. The flexure test result of Acropora coral reef waste particulate with polyester matrix yields average flexure stress at mass fraction variety of 40% with a score of 112,56 MPa, with an average Elastic Modulus score of 3098,96 MPa.

scholarly journals PENGARUH KOMPOSISI PENGISI SERTA TEKANAN HOT PRESS TERHADAP KEKUATAN TARIK KOMPOSIT POLIESTER BERPENGISI NANO PARTIKEL ZINC OXIDE (ZnO)

2019 ◽  
Vol 8 (1) ◽  
pp. 32-36
Author(s):  
Regy A Putra Ginting ◽  
Maulida
Keyword(s):  
Tensile Strength ◽  
Zinc Oxide ◽  
Filler Loading ◽  
Pressure Variation ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Hot Press ◽  
The Matrix ◽  
Polyester Composites ◽  
Scanning Electron

The aim of this research was to determine the effects of filler loading and pressure of hot press on tensile strength of zinc oxide (ZnO) filled polyester composites. The Composites were prepared by using polyester as the matrix, methyl ethyl ketone peroxide (MEKPO) as the catalyst. The composites were filled by the zinc oxide at 0%; 1%; 3%; 5%; and 7% were molded by hot press with pressure variation of 50 psi, 75 psi, 100 psi, 125 psi and 150 psi. Composites have been molded, then tested for the characteristics Scanning Electron Microscope (SEM) and tests of tensile strength. The best result of tensile strength, impact and flexural were found on the addition of 3% ZnO at a pressure of 150 psi with a tensile strength of 55,12 MPa. SEM characterization showed a rough surface on the addition of 3% ZnO at a pressure of 150 psi because had a good wetting between matrix and filler ZnO.

scholarly journals PENGARUH KOMPOSISI PENGISI SERTA TEKANAN HOT PRESS TERHADAP KEKUATAN TARIK KOMPOSIT POLIESTER BERPENGISI PARTIKEL ZINC OXIDE (ZnO)

2018 ◽  
Vol 7 (2) ◽  
pp. 40-44
Author(s):  
Hamzah Arifin Sinambela ◽  
Maulida
Keyword(s):  
Tensile Strength ◽  
Zinc Oxide ◽  
Filler Loading ◽  
Pressure Variation ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Hot Press ◽  
The Matrix ◽  
Polyester Composites ◽  
Scanning Electron

The aim of this research was to determine the effects of filler loading and pressure of hot press on tensile strength of zinc oxide (ZnO) filled polyester composites. The Composites were prepared by using polyester as the matrix, methyl ethyl ketone peroxide (MEKPO) as the catalyst. The composites were filled by the zinc oxide at 0%; 1%; 3%; 5%; and 7% were molded by hot press with pressure variation of 50 psi, 75 psi, 100 psi, 125 psi and 150 psi. Composites have been molded, then tested for the characteristics Scanning Electron Microscope (SEM) and tests of tensile strength. The best result of tensile strength, impact and flexural were found on the addition of 3% ZnO at a pressure of 150 psi with a tensile strength of 54 MPa. SEM characterization showed a rougher surface is breaking up on the addition of 3% ZnO at a pressure of 150 psi because had a good wetting between matrix and filler ZnO.

The Use of Styrenes as Embedding Media for Electron Microscopy

1971 ◽  
Vol 29 ◽  
pp. 488-489
Author(s):  
Edward D. De-Lamater ◽  
Eric Johnson ◽  
Thad Schoen ◽  
Cecil Whitaker
Keyword(s):  
Electron Microscopy ◽  
Surface Tension ◽  
Ultraviolet Light ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Styrene Polymerization ◽  
Radical Initiation ◽  
Tertiary Butyl ◽  
Low Viscosity ◽  
Free Radical Initiation

Monomeric styrenes are demonstrated as excellent embedding media for electron microscopy. Monomeric styrene has extremely low viscosity and low surface tension (less than 1) affording extremely rapid penetration into the specimen. Spurr's Medium based on ERL-4206 (J.Ultra. Research 26, 31-43, 1969) is viscous, requiring gradual infiltration with increasing concentrations. Styrenes are soluble in alcohol and acetone thus fitting well into the usual dehydration procedures. Infiltration with styrene may be done directly following complete dehydration without dilution.Monomeric styrenes are usually inhibited from polymerization by a catechol, in this case, tertiary butyl catechol. Styrene polymerization is activated by Methyl Ethyl Ketone peroxide, a liquid, and probably acts by overcoming the inhibition of the catechol, acting as a source of free radical initiation.Polymerization is carried out either by a temperature of 60°C. or under ultraviolet light with wave lengths of 3400-4000 Engstroms; polymerization stops on removal from the ultraviolet light or heat and is therefore controlled by the length of exposure.

Effects of Y on the Microstructure and Mechanical Properties of Mg-Zn-Y-Zr Magnesium Alloys

2017 ◽  
Vol 904 ◽  
pp. 29-35
Author(s):  
Da Yu Wang ◽  
Zhi Ming Du ◽  
Hong Juan Zhang ◽  
Li Hua Chen ◽  
Chang Shun Wang
Keyword(s):  
Mechanical Property ◽  
Grain Refinement ◽  
Mass Fraction ◽  
Atomic Ratio ◽  
Extension Rate ◽  
Precipitated Phase ◽  
Mold Casting ◽  
Alloy Increase ◽  
Test Result ◽  
Zr Alloys

Mg-Zn-Zr-Y billets with different mass fraction of Y (wt%(Y)=0.2%、0.5%、1.0%、1.5%、2.0%) was prepared by permanent mold casting. The increase in Y content has shown grain refinement effects on the microstructure morphologies of Mg–Zn–Y–Zr alloys. When the content of Y achieves 1.0 wt%, the grain refinement effect of the Y is most obvious than any more contents of the Y content. In the test result of XRD, the type of precipitated phase in Mg-Zn-Zr-Y alloys is related to atomic ratio of Y/Zn. With content of Y increases, atomic ratio of Y/Zn increases,the precipitated phase in alloy is changed from Phase I to Phase W. Tensile strength and extension rate of alloy increase with the increasing of Y content; When Y content reaches 1.0%, mechanical property reaches maximum value.When content of Y exceeds 1.0%, with the increasing of Y content, mechanical property of alloy declines gradually.

scholarly journals Study of Experimental Investigations in the Presence of Ceramic Waste Powder

2021 ◽  
Vol 57 (4) ◽  
pp. 1-12
Author(s):  
Mohamed Farsane ◽  
Abdellah Anouar ◽  
Souad Chah ◽  
Said Dagdag ◽  
Miloud Bouzziri
Keyword(s):  
Methyl Ethyl Ketone ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Unsaturated Polyester Resin ◽  
Experimental Investigations ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Gel Time ◽  
Simple Method ◽  
Ceramic Waste

The paper aims to evaluate the gel time and exotherm temperature properties of the curing of unsaturated polyester resin at various amounts of Methyl ethyl ketone peroxide, cobalt octoate and porcelain powder. The gel time of samples are determined using the simple method, while the exotherm temperature are evaluated using the thermocouple. The variation of these properties is discussed theoretically and experimentally.

Effect of ultrasonic parameters on the mechanical properties of glass fiber reinforced polyester filled with nano-clay

2020 ◽  
pp. 152808372091834
Author(s):  
M Megahed ◽  
MA Agwa ◽  
AA Megahed
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
Glass Fiber ◽  
Control Mode ◽  
Nano Clay ◽  
Maximum Improvement ◽  
Polyester Matrix ◽  
Ultrasonic Parameters ◽  
Polyester Composites ◽  
Sonication Parameters

Ultrasound sonication is one of the promising techniques to disperse the nanoparticles into a polymeric matrix thoroughly. In this study, the effects of ultrasonic parameters (amplitude%, time, and cycle of sonication) on the dispersion of 1 wt% nano-clay in polyester matrix were investigated. To disperse the nano-clay into the polyester matrix, sonication amplitudes of 40 and 80%; sonication times of 0.5, 1, and 2 h; and pulsed as well as continuous cycle acoustic irradiation modes were used. Compared with the unfilled glass fiber/polyester composites, the tensile strength and fracture toughness of glass fiber/polyester composites filled with nano-clay were improved with all sonication parameters. The ultrasonic parameters were of significant importance for dispersing nano-clay onto glass fiber/polyester composites and improving the interfacial properties of the composites. Sonication using an amplitude of 40% with pulse control mode of 0.5 cycle and time of 2 h resulted in maximum improvement in both ultimate tensile strength and fracture toughness of 22 and 33.4%, respectively, as compared to neat specimens.

Sign in / Sign up

Export Citation Format

Share Document