Mineral Filled Porous Composites Based on Polyvinylpyrrolidone Copolymers with Bactericidal Properties

2016 ◽  
Vol 10 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Volodymyr Skorokhoda ◽  
◽  
Nataliya Semenyuk ◽  
Iryna Dziaman ◽  
Oleg Suberlyak ◽  
...  
Keyword(s):  
Silver Nitrate ◽  
Composite Structure ◽  
Nitrate Reduction ◽  
Polymerization Kinetics ◽  
Mineral Filler ◽  
Silver Particles ◽  
Bactericidal Properties ◽  
Mineral Fillers ◽  
Porous Composites ◽  
Tertiary Nitrogen

The polymerization of 2-hydroxyethylmethacrylate compositions with polyvinylpyrrolidone has been investigated in the presence of mineral fillers (hydroxyapatite, montmorillonite and wollastonite). The influence of the nature and amount of mineral filler on polymerization kinetics and composition of copolymers has been determined. In the composite structure silver particles were obtained via silver nitrate reduction by polyvinylpyrrolidone tertiary nitrogen. The synthesized silver-containing composites possess bactericidal properties against E. colі and S. aureus bacteria, in particular.

scholarly journals Effect of Filler Nature on Chemical Resistance and Microhardness of Epoxy Composite Films

2015 ◽  
Vol 16 (3) ◽  
pp. 528-533
Author(s):  
G. Martinyuk ◽  
O. Aksimentyeva ◽  
N. Skoreiko ◽  
V. Zakordonskyi
Keyword(s):  
Mechanical Properties ◽  
Chemical Resistance ◽  
Filler Content ◽  
Epoxy Composite ◽  
Composite Films ◽  
Physical And Mechanical Properties ◽  
Epoxy Composites ◽  
Mineral Filler ◽  
Operating Characteristics ◽  
Mineral Fillers

We investigated the processes of water absorption, chemical stability and microhardness of films of epoxy composites that contained as the polymer matrix the epoxy resin UP-655 and mineral fillers: graphite, mica, aluminum oxide at their content (0 - 30 % mass). It found that introduction of mineral fillers significantly affects on all complex of operating characteristics of the films. Increase of filler content, especially mica, to 20 %, resulting in slower process and reducing the quantity of absorbed moisture by films. In the study of physical and mechanical properties of filled epoxy composites was established that the introduction of mineral filler significantly affects their microhardness, and the nature of the exposure is determined by the type and filler content.

Polyisocyanates as Curing Adjuvants for Ethylene—Propylene Terpolymers

1964 ◽  
Vol 37 (4) ◽  
pp. 927-933
Author(s):  
J. R. Wolfee ◽  
J. R. Albin
Keyword(s):  
Tensile Strength ◽  
Low Cost ◽  
New Method ◽  
Mineral Filler ◽  
High Modulus ◽  
Stress Strain ◽  
Ethylene Propylene ◽  
Reinforcing Fillers ◽  
Light Color ◽  
Mineral Fillers

Abstract Ethylene—propylene—nonconjugated diene terpolymers yield vulcanizates of high modulus and tensile strength in the presence of strongly reinforcing fillers. In many applications where low cost, light color, or nonconductivity are required, it is necessary to use poorly reinforcing mineral fillers. The combination of poorly reinforcing mineral filler and amorphous EP terpolymer yields vulcanizates which do not have the excellent stress-strain properties characteristic of many black loaded stocks. The purpose of this paper is to present a new method of obtaining superior properties in mineral filled EP terpolymer vulcanizates.

scholarly journals Effect of Silver Particles Electrodeposited on Reticulated Vitreous Carbon for Nitrate Reduction

2017 ◽  
Vol 80 (10) ◽  
pp. 1073-1080 ◽  
Author(s):  
Silvia Sizuka Oishi ◽  
Andrea Boldarini Couto ◽  
Edson Cocchieri Botelho ◽  
Neidenei Gomes Ferreira
Keyword(s):  
Nitrate Reduction ◽  
Vitreous Carbon ◽  
Silver Particles ◽  
Reticulated Vitreous Carbon

AN ELECTRON MICROSCOPE STUDY OF SILVER NITRATE REDUCTION IN LEAF CELLS

1962 ◽  
Vol 49 (1) ◽  
pp. 57-63 ◽  
Author(s):  
W. V. Brown ◽  
H. Mollenhauer ◽  
C. Johnson
Keyword(s):  
Electron Microscope ◽  
Silver Nitrate ◽  
Nitrate Reduction ◽  
Microscope Study ◽  
Electron Microscope Study

scholarly journals EFFECT OF MINERAL FILLERS ON CRYSTALLIZATION AND MELTING BEHAVIOR OF POLY(LACTID ACID)/MINERAL FILLER COMPOSITES

2012 ◽  
Vol 012 (9) ◽  
pp. 952-957 ◽  
Author(s):  
Guo-xiang Zou ◽  
Xin Zhang ◽  
Bing-jian Li ◽  
Cai-xia Zhao ◽  
Jin-chun Li
Keyword(s):  
Melting Behavior ◽  
Mineral Filler ◽  
Crystallization And Melting Behavior ◽  
Mineral Fillers

scholarly journals Composite elastomeric materials filled with modified mineral fillers

2021 ◽  
Vol 264 ◽  
pp. 05006
Author(s):  
Ahmadjon Ibadullayev ◽  
Elmira Teshabayeva ◽  
Bakhadir Kakharov ◽  
Dilnoza Nigmatova
Keyword(s):  
Uniform Distribution ◽  
Mineral Filler ◽  
Equal Strength ◽  
Elastomeric Materials ◽  
Adsorbed Sulfur ◽  
Technical Properties ◽  
Mineral Fillers ◽  
Butadiene Styrene

In the paper, the influence of modified Angren kaolin on the properties of composite elastomeric materials based on butadiene-styrene rubber has been established that the addition of modified Angren kaolin into rubber mixtures instead of gas pedals, activators and mineral fillers causes intensive connection of sulfur with macromolecules. Adsorbed sulfur on the surface of particles of modified Angren kaolin and its uniform distribution in the composition and formation of the structure with equal force were determined. This effect shows that the modified Angren kaolin in the curing processes accelerates and activates and affects the formation of the curing grid with equal strength and helps distribution throughout the composite. It has been established that introduction of MAK into the composition of elastomers more than 50 wt. % per 100 wt. % of rubber changes technological and technical properties of composite elastomeric materials. The application of modified Angren kaolin instead of the gas pedal, activator of vulcanization and mineral filler in composite elastomeric materials allows making rubber goods of various purposes.

scholarly journals PREDICTION OF WATER-BASED PAINT PROPERTIES BASED ON THEIR MINERAL FILLERS: SIMPLEX-PLSR COUPLING APPLICATION

2018 ◽  
Vol 2 ◽  
pp. 2-15
Author(s):  
Paulo Ricardo Nunes da Conceição ◽  
Carlos Otávio Petter ◽  
Carlos Hoffmann Sampaio
Keyword(s):  
Numerical Model ◽  
Partial Least Squares Regression ◽  
Contrast Ratio ◽  
Mineral Filler ◽  
Least Squares Regression ◽  
Water Based ◽  
Paint Industry ◽  
Mineral Fillers ◽  
Dry Film ◽  
Response Variables

The present study shows the optimization of mineral filler blends for use in water-based paints. The aim of the modelling is to evaluate the possibility of creating a model of prediction of the contrast ratio and brightness of the dry film, where the fillers that participate in the system are fillers used commercially by the paint industry. The differential of the use of the mixtures design, called Simplex, is that the predictions are made by carrying out a linear combination between the proportions of the mineral fillers and the response variables. The proposed procedure consists in generating a numerical model that can predict final paint properties depending on the concentrations of the mineral fillers (PCC, GCC and kaolin) used. As support for simplex mixture design, the methods of Partial Least Squares regression and Response Surface were used in the calculations of the models and in the visualization of the response variables.

Crack Behaviour in Polymeric Composites: The Influence of Particle Shape

2011 ◽  
Vol 465 ◽  
pp. 564-567 ◽  
Author(s):  
Zdeněk Majer ◽  
Pavel Hutař ◽  
Zdeněk Knésl
Keyword(s):  
Mechanical Properties ◽  
Composite Structure ◽  
Point Of View ◽  
Particulate Composites ◽  
Theoretical Point ◽  
Global Behaviour ◽  
Rigid Particles ◽  
Three Phase ◽  
The Matrix ◽  
Mineral Fillers

In this paper polymeric particulate composites are studied (especially polypropylene (PP) matrix stuffed by rigid mineral fillers). Presently, polymeric particulate composites are frequently used in many engineering applications. The composite was modeled as a three-phase continuum – matrix, interphase and particle. The properties of the particles (size, shape) have a significant effect on the global behaviour of the composite. On the basis of fracture mechanics methodology the interaction of micro-crack propagation in the matrix filled by rigid particles covered by the interphase was analyzed. The effect of the composite structure on their mechanical properties is studied here from the theoretical point of view.

scholarly journals Some Critical Information on the Silver-nitrate-reduction in the Cells of Several Musci and Ferns

1960 ◽  
Vol 73 (864) ◽  
pp. 245-251
Author(s):  
Yoshio YOSHIDA
Keyword(s):  
Silver Nitrate ◽  
Nitrate Reduction ◽  
Critical Information
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