scholarly journals Reinforcement of Montmorillonite Clay in Epoxy/Unsaturated Polyester Blended Composite: Effect on Composite Properties

2021 ◽  
Author(s):  
Chakradhar V.P. Komanduri
Keyword(s):  
Chemical Analysis ◽  
Unsaturated Polyester ◽  
Chemical Properties ◽  
Considerable Extent ◽  
Montmorillonite Clay ◽  
Composite Effect ◽  
Mechanical Stirring ◽  
Mmt Clay ◽  
Composite Properties ◽  
And Chemical Properties

Montmorillonite (MMT) clay was disseminated into Unsaturated Polyester (UP) and Epoxy blend systems in diverse weight ratios namely, 0, 1, 2, 3, and 5% to prepare Epoxy/UP/MMT clay composite. The specimen was characterized by thermal and chemical analysis. Homogeneous mixture of blended composites is obtained through mechanical stirring and ultrasonication processes. The testing of thermal and chemical properties was performed. Evidence acquired from the above tests indicate that Epoxy reinforced with UP and further strengthened with MMT clay enhanced the thermal and chemical properties of the composite to a considerable extent. The purpose of this study was to recognize an appropriate composite offering a stronger material with enhanced performance; that is suitable for diverse industrial uses.

Structural and Chemical Analysis of Crystal Enamel Nucleation

1999 ◽  
Vol 599 ◽  
Author(s):  
I. A. Belío-Reyes ◽  
L. F. JimÉNez-García ◽  
J. Reyes-Gasga
Keyword(s):  
Chemical Analysis ◽  
Chemical Properties ◽  
Dental Enamel ◽  
Nucleation And Growth ◽  
Chemical Information ◽  
Enamel Mineralization ◽  
Outermost Zone ◽  
And Chemical Properties

AbstractThe aim of the present study is to obtain structural and chemical information about nucleation and growth of dental enamel as a function of location in secretory mouse foetus enamel. Then enamel tissues were obtained from 19-days-mouse foetus. TEM images show that enamel crystallites had the well-documented thin ribbons, or needles. They were found in the outermost zone in the vicinity of ameloblasts. Chemical analysis by EDS showed that, besides the elements of hydroxyapatite, Na, Cl, Al and Mg are presents from the beginning of enamel mineralization. All of these elements will play an important role on the physics and chemical properties in mature enamel.

A Study of Some Mechanical and Chemical Properties of Composite Materials Made Up of UPR and ISO/NPG Granules of the Type of Buzi/Perdido Cromate

2018 ◽  
Vol 69 (5) ◽  
pp. 1045-1049
Author(s):  
Ion Ciuca ◽  
Marius Marinel Stanescu ◽  
Dumitru Bolcu ◽  
Luminita Florentina Deaconu (Stanescu)
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Modulus Of Elasticity ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Characteristic Curve ◽  
Chemical Properties ◽  
Unsaturated Polyester Resin ◽  
Ftir Analysis ◽  
And Chemical Properties

In this work we have measured the mechanical properties for unsaturated polyester resin (UPR) and unsaturated polyester resin mixed with isophthalic resin granules NPG (Neopentyl Glycol) of the type of Buzi/Perdido Chromate. All sets of samples underwent compression testing. We obtained the characteristic curve, the admissible resistance to compression, and the modulus of elasticity for each sample. Moreover, on the basis of FTIR analysis we measured the type of bonds (C-O, C=O, C-C and various bonds in the functional groups) in each polymer.

Quantitative Structural and Chemical Analysis of Thin Films: Part II

MRS Bulletin ◽  
1993 ◽  
Vol 18 (1) ◽  
pp. 21-23
Author(s):  
Y. Bruynseraede ◽  
Ivan Schuller
Keyword(s):  
Thin Films ◽  
Chemical Analysis ◽  
Quantitative Determination ◽  
Chemical Properties ◽  
Atomic Level ◽  
New Techniques ◽  
Comprehensive Review ◽  
Chemical Determination ◽  
And Chemical Properties

In the second of this two-part series for the MRS Bulletin, we present the most commonly used tools for the quantitative determination of structure and chemistry in thin films. The physics of thin films is at a stage during which one encounters phenomena that have a fragile dependence on the structure and chemical properties of the interface; the field, therefore, is at a stage during which quantitiative structural and chemical determination at the atomic level is a must. It is the purpose of the December and January issues of the Bulletin to provide a start for researchers interested in the field. Of course, even during the writing of these articles new techniques are being invented and it is therefore impossible to provide a comprehensive review of all techniques being used these days.

scholarly journals Morphogenetic features of properties of initial carbonate soils

2013 ◽  
pp. 324-332
Author(s):  
Roman Semashchuk
Keyword(s):  
Chemical Analysis ◽  
Key Words ◽  
Carbonate Rocks ◽  
Chemical Properties ◽  
Morphological Properties ◽  
Physical And Chemical Properties ◽  
Agricultural Plant ◽  
Physical Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

Results of studies of key morphological, physical-chemical and chemical properties of underdeveloped carbonate soils, which are influenced by woody, herbaceous and agricultural plant formations on eluvium-delluvium carbonate rocks, were given. Key words: initial soils, morphological properties, physical and chemical properties, gross chemical analysis.

scholarly journals Preparation and standardization of kasis bhasma by two different methods and its analytical study

2021 ◽  
Vol 6 (4) ◽  
pp. 213-216
Author(s):  
Manjiri Ranade ◽  
Keyword(s):  
Chemical Composition ◽  
Chemical Analysis ◽  
Analytical Study ◽  
Ferric Iron ◽  
Chemical Properties ◽  
Pure Form ◽  
Local Market ◽  
Medical College ◽  
Physical And Chemical ◽  
And Chemical Properties

Different ayurvedic texts have mentioned different methods of shodhan (Purification) and maran (incineration) of ayurvedic mineral preparations of kasis. Though different methods of shodhan and maran are described in various texts complete physio chemical standardization is necessary to prepare the pure form and for quality assurance as well as It is necessary to understand the chemical changes that take place after various ayurvedic processes. Aims and Objectives: 1. Procurement of grahya kasis from local market and its chemical analysis 2. Purification of kasis in dolayantra and its chemical analysis 3. Preparation of kasis bhasma by two methods given by ras tarangini and its chemical analysis. Setting and Design: observational analytical study. Place of study: Department of Rasa Shastra and BK, GS Ayurvedic medical college. Materials and methods: Ashudhha kasis is purified and subjected to incineration by two types, Snuhipatra swaras bhavana, and kanji and Nimbu swaras bhavana as given in rasa tarangini. Chemical composition of the raw form, pure form as well as two types of bhasmas is analyzed in laboratory. Results: 1. Analysis of kasis at each stage of its formation to kasis bhasma shows the changes in physical and chemical properties due to its transformation as it is heated thermal decomposition starts 2. The chemical analysis of kasis bhasma shows highest percentage of ferric iron in comparison with raw and shodhit form. 3. Chemical analysis of kasis bhasma obtained by incineration process, by Snuhipatra swaras bhavana, and kanji and Nimbu swaras bhavana does not show any notable difference in chemical composition. Both methods can be used to prepare kasis bhasma as per availability of bhavana dravya.

Effect of Copper on Formability and Weldability of SUS 430J 1L Steel for Bead Forming of Drum

2018 ◽  
Vol 783 ◽  
pp. 159-164
Author(s):  
Jithin Ambarayil Joy ◽  
Muhammad Sajjad ◽  
Dong Won Jung
Keyword(s):  
Steel Sheet ◽  
Chemical Properties ◽  
Considerable Extent ◽  
Washing Machine ◽  
Life Styles ◽  
Automated Technology ◽  
Fully Automatic ◽  
Effect Of Copper ◽  
Selection Of ◽  
And Chemical Properties

Washing machine has greatly influenced people’s life styles by providing easy means of washing clothes and drying them out to a considerable extent. This not only saves time and amount of water used but also helps the user to wash and dry clothes with a lot of ease due to its fully automatic nature. But taking advantage of fully automated technology have some limitation, we have to take extra care during modeling of washing machine components and there selection of materials. In this paper we are studying about the change in formability and weldability properties of SUS 430J 1L steel sheet, by changing the amount of alloying elements for the manufacturing of washing machine drum beads. Two standard tests ASTM A751 - 14a and ASTM E8 / E8M – 16a is use for two types of samples, there comparison between mechanical and chemical properties and its effect on weldability and formability are discussed. From the results of the test, we find out that the formability is increased by increasing the amount of copper content in the steel sheet. Also by addition of more copper after some considerable amount negatively affect the weldability of the steel sheet.

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