scholarly journals The Effects of Filler Contents and Particle Sizes on the Mechanical and End-Use Properties of Snail Shell Powder Filled Polypropylene

2011 ◽  
Vol 02 (07) ◽  
pp. 810-816 ◽  
Author(s):  
Genevive C. Onuegbu ◽  
Isaac O. Igwe
Keyword(s):  
Particle Sizes ◽  
Snail Shell ◽  
End Use ◽  
Shell Powder

scholarly journals Studies on Mechanical and End-Use Properties of Natural Rubber Filled with Snail Shell Powder

2011 ◽  
Vol 02 (07) ◽  
pp. 801-809 ◽  
Author(s):  
Isaac Ogbennaya Igwe ◽  
Augustina Adanna Ejim
Keyword(s):  
Natural Rubber ◽  
Snail Shell ◽  
End Use ◽  
Shell Powder

scholarly journals Analysis of tensile strength, microstructure, and fractograph of Al-Si with snail shell powder as reinforce agent

2021 ◽  
Vol 1034 (1) ◽  
pp. 012131
Author(s):  
Poppy Puspitasari ◽  
Galy Dwi Susilo ◽  
Aminnudin ◽  
Yanuar Rohmat Aji Pradana ◽  
Andika Bagus Nur Rahma Putra ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Snail Shell ◽  
Shell Powder

scholarly journals Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Isaac O. Igwe ◽  
Obumneme E. Ezeani
Keyword(s):  
Particle Size ◽  
Weight Gain ◽  
Natural Rubber ◽  
Activation Energies ◽  
Free Energies ◽  
Snail Shell ◽  
Aromatic Solvents ◽  
Benzene Toluene ◽  
Powder Content ◽  
Shell Powder

The transport of three aromatic solvents (benzene, toluene and xylene) through snail shell powder filled natural rubber was studied at 313, 333, and 353 K by conventional weight-gain experiments. The effects of snail shell powder content, particle size, nature of solvent, and temperature on the transport characteristics of natural rubber were determined. The estimated Arrhenius activation energies for the processes of sorption, diffusion, and permeation showed that the activation energies were highest in xylene at all the filler contents investigated. The calculated enthalpies, and entropies of sorption were all positive for the solvents investigated. Similarly, the change in the estimated free energies of sorption were all positive; an indication of the non-spontaneity of the solubility of snail shell powder filled natural rubber in the aromatic solvents at 313 k.

scholarly journals Experimental Investigation of Snail Shell-Based Cement Mortar: Mechanical Strength, Durability and Microstructure

2021 ◽  
Author(s):  
Suseela Alla ◽  
SS. Asadi
Keyword(s):  
Cement Mortar ◽  
Microstructural Analysis ◽  
Strength Test ◽  
X Ray Diffraction ◽  
Chloride Permeability ◽  
Snail Shell ◽  
X Ray ◽  
Compressive Strength Test ◽  
Living Organisms ◽  
Shell Powder

Abstract Snail shells are the discarded bio-shell waste from restaurants, and oceans creating huge environmental problems for society. Living organisms are harmed when these shells are released. As previously stated, the work focuses primarily on the utilisation of snail shell powder as a raw ingredient in cement mortar. The mechanical and durability features of snail shell-based cement mortar were compared to the nominal mortar in this study. Snail shell powder, ranging from 0% to 35%, was used to partially substitute cement in mortar, with a variation of 5%. XRD (X-Ray Diffraction) was used to determine the chemical composition of both mixes. The mechanical properties of mortar for both mixes were determined using a compressive strength test. The tests on cement mortar viz., Water Absorption, Sorptivity, Acid Durability, and Rapid Chloride Permeability Test (RCP Test) were compared with nominal mortar mix. According to the results of the investigation, the optimum use of snail shell powder is 30%. The durability of both mixes increased by the increase of the snail shell powder. To detect the C-S-H gel formations, microstructural analysis was performed for both mixes.

scholarly journals f INFLUENCE OF PISTACHIO SHELL POWDER REINFORCEMENT ON FTIR AND DSC BEHAVIOR OF PMMA ACRYLIC RESIN

2020 ◽  
Vol 20 (1) ◽  
pp. 63-76
Author(s):  
Jawad Kadhim Oleiwi ◽  
Jawad Kadhim Oleiwi
Keyword(s):  
Particle Size ◽  
Average Particle Size ◽  
Acrylic Resin ◽  
Average Particle ◽  
Particle Sizes ◽  
Denture Base ◽  
Pistachio Shell ◽  
Heat Cure ◽  
The Fourier Transform ◽  
Shell Powder

Although, the PMMA have good advantages made it appropriate to denture base applications. But its low impact and fracture strength represent the main drawbacks of it.so many studies had been done in order to overcome these problems. In this study Pistachio Shell powder was added in different weight fractions of about (3, 6, 9 and 12 wt. %) and different average particle sizes of about (53µm, 106µm, 150µm and212µm) to (heat-cure) PMMA that is popularly utilize in denture base applications and study the Fourier transform infrared spectroscopy (FTIR) and Differential Scanning Calorimeter (DSC) behavior of this bio composite. The results were as the following: the FTIR results demonstrated that there are no new peaks appeared after the reinforcing by Pistachio Shell powder. Also there was no shifting in any of these peaks. While the DSC test showed that the glass transition temperature (Tg) increased as the particle size of Pistachio Shell powder increased. The highest value of Tg (126.9?) was obtained for composite specimen reinforced with 12% of Pistachio Shell powder with average particle size of about (212µm).

scholarly journals Silicosis Caused by Chronic Inhalation of Snail Shell Powder

2012 ◽  
Vol 27 (1) ◽  
pp. 93
Author(s):  
Jae Woo Jung ◽  
Byung Ook Lee ◽  
Jae Hee Lee ◽  
Sung Woon Park ◽  
Bo Min Kim ◽  
...  
Keyword(s):  
Snail Shell ◽  
Shell Powder

Morphology and Physical/End-Use Properties of Recycled Polypropylene-Corn Cob Powder Composites

2017 ◽  
Vol 11 ◽  
pp. 1-12
Author(s):  
Chukwudike Onuoha ◽  
Okechukwu Onyemaobi ◽  
Charles Anyakwo ◽  
Genevive Onuegbu
Keyword(s):  
Particle Size ◽  
Filler Particle ◽  
Filler Loading ◽  
Solubility Parameters ◽  
Particle Sizes ◽  
Corn Cob ◽  
Morphological Studies ◽  
Recycled Polypropylene ◽  
Filler Particle Size ◽  
End Use

This study investigates the morphological and physical/end-use properties of corn cob powder-filled recycled polypropylene composites. The composites were prepared by incorporating corn cob powder of particle sizes 150 µm, 300 µm and 425 µm respectively at filler loadings of 5 to 25 wt%. The properties were determined according to standard test procedures. Results showed that the incorporation of corn cob powder as filler resulted to enhancement of water absorption and solvent sorption, which were found to increase with both increase in filler loading and increase in filler particle size, probably due to the hydrophilic nature of corn cob powder. It was also discovered that solvent sorption was most pronounced with benzene, followed by toluene and lastly xylene, in accordance with the relative proximity of their solubility parameters to that of polypropylene. Flame propagation rate was also found to improve by the incorporation of corn cob powder due to its high content of cellulose, a combustible organic matter. However, specific gravities of the composites were found to be lower than for the unfilled polypropylene, an implication that the composites produced are lighter in weight than the unfilled. Specific gravity increased with increase in filler loading but decreased with increase in particle size. The Morphological studies showed increase in the number of spherulites with increase in filler loading and increase in the size of the spherulites with increase in particle size. Further observation showed that the particle sizes and pores sizes detected increased with increase in filler particle size probably due to poor interaction and distribution of coarse particles. It is hoped that this present study will to help place the usefulness of corn cob as filler in the development of thermoplastic composites in future and develop its niche in the scientific record.

Sign in / Sign up

Export Citation Format

Share Document