Physico-Chemical and Technological Properties of Kazakhstan Natural Mineral Fillers as a Basis for Their Use in the Manufacture of Composite Materials with Special and Medical Purposes

2005 ◽  
Vol 1 (1) ◽  
pp. 112-115
Author(s):  
O.B. Beyseev ◽  
Keyword(s):  
Composite Materials ◽  
Technological Properties ◽  
Natural Mineral ◽  
Physico Chemical ◽  
Mineral Fillers

scholarly journals The study of the structure and properties of nanostructured biodegradable thermoplastic composite

2018 ◽  
Vol 80 (2) ◽  
pp. 302-306 ◽  
Author(s):  
N. A. Shcherbina ◽  
V. A. Taganova ◽  
E. V. Bychkova ◽  
S. Ya. Pichkidze
Keyword(s):  
Composite Material ◽  
Lactic Acid ◽  
Composite Materials ◽  
Relative Elongation ◽  
Thermoplastic Composite ◽  
Polymer Materials ◽  
Structure And Properties ◽  
Natural Mineral ◽  
Nanostructured Composite ◽  
Mineral Fillers

Increased requirements for polymer materials and the expansion of their application fields create the prerequisites for the creation of new composite materials. The most promising matrix for the biocomposite material is 2-hydroxypropionic (lactic) acid, the unique capabilities of which are manifested as a result of modification by inorganic mineral fillers of nanometric size. The combination of such properties as Biodegradability and biocompatibility is particularly valuable in this polymer. Nanostructured composite materials, consisting of polylactic acid and mineral fillers, acquire a significant improvement in properties compared to the properties of a pure polymer. Biodegradable films containing a layered natural mineral from the class of metasilicates were obtained by the method of irrigation of molding solutions. Trichloromethane was used as a solvent for the preparation of molding solution. The structure and properties of a nanostructured thermoplastic composite are studied. It is shown that the filler is evenly distributed in the polymer structure, affects the size of the crystal formations, the size of the crystallites increases. The introduction of a nanostructuring mineral into a biopolymer increases the thermal stability of the composite, which is due to the high resistance to high temperatures of the initial micro-reinforcing mineral filler, which does not decompose to a temperature of 1000-1100 0C. The influence of layered natural mineral from the class of metasilicates on the deformation and strength properties of biocompositeis established: the strength is maintained and the relative elongation at material rupture is slightly reduced. The ability to biodegradation and very low toxicity allow the use of nanostructured composite material based on 2-hydroxypropionic (lactic) acid in biomedical, pharmaceutical, environmental and industrial fields. The development of biodegradable composite material will solve the current domestic problems of polymers for medical purposes.

THE QUALITY OF MILK AND CHEESE OF SHEEP OF EAST FRISIAN AND ROMANOV BREEDS AND THEIR CROSSBREEDS

2021 ◽  
pp. 26-30
Author(s):  
A.S. SHUVARIKOV ◽  
Keyword(s):  
Thermal Stability ◽  
Technological Properties ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Quality Of Milk

The article presents data on the physico-chemical parameters, technological properties of milk and the quality of cheese obtained from sheep of the East Frisian and Romanov breeds and their crossbreeds. The information about sheep’s milk with possible deviations from normal milk in terms of titrated acidity and thermal stability is presented

INFLUENCE OF TECHNOLOGICAL PARAMETERS ON CHARACTERISTICS OF POLYMER COMPOSITE MATERIALS IN AUTOMATED LAYUP OF PREPREGS (review)

2021 ◽  
pp. 46-55
Author(s):  
P.N. Timoshkov ◽  
◽  
V.A. Goncharov ◽  
M.N. Usacheva ◽  
A.V. Khrulkov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Materials ◽  
Technological Properties ◽  
Technological Parameters ◽  
Technological Factors ◽  
Rolling Pressure ◽  
Material Temperature

The main technological factors when using ATL and AFP technologies are material temperature, laying speed, rolling pressure and no deviation from the required laying trajectory. The article discusses the influence of technological factors on some characteristics of polymer composite materials. The optimum laying temperature should provide the required adhesion. The rate of laying should provide heating of the material without its technological properties. The rolling pressure during laying should ensure optimal porosity and thickness of the material.

Forming and Utilizing Ferrochromium Production Waste

2020 ◽  
Vol 989 ◽  
pp. 492-497 ◽  
Author(s):  
Ivan D. Kascheev ◽  
Vladimir I. Zhuchkov ◽  
Oleg V. Zayakin
Keyword(s):  
Phase Composition ◽  
Physical Properties ◽  
Russian Federation ◽  
Production Waste ◽  
Technological Properties ◽  
High Carbon ◽  
Chemical Phase ◽  
Physico Chemical ◽  
Thermo Physical Properties ◽  
Ferrochromium Slag

Analysis of forming chromium-bearing ferroalloys production waste in Russian Federation was performed. Chemical, phase, fractional compositions and physico-chemical, technological properties of high-carbon ferrochromium slag were defined. Physico-chemical, thermo-mechanical and thermo-physical properties of fire-resistant materials, obtained from ferrochromium production slag and dust, were researched. It was shown that researched waste may be utilized as raw for fire-resistant materials production. Because of their chemical and phase composition, researched materials may be utilized for production of forsterite-spinel-based and forsterite-spinel-periclase-based fire-resistant materials. Technological properties of researched materials allow obtaining dense strength fire-resistant materials. Such fire-resistant materials are promising in the field of ferrous metallurgy (lining up furnaces, ladles and overflow launders in ferroalloys production).

scholarly journals The Use of Composite Materials in 3D Printing

2020 ◽  
Vol 4 (2) ◽  
pp. 42 ◽  
Author(s):  
Ignazio Blanco
Keyword(s):  
Composite Materials ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Polymer Matrix ◽  
Chemical Properties ◽  
Modified Polymer ◽  
Research Activities ◽  
Physico Chemical ◽  
3D Printed ◽  
Limited Spectrum

Nowadays, all production, from the smallest ones to large companies, and research activities are affected by the use of 3D printing technology. The major limitation, in order to cover as many fields of application as possible, is represented by the set of 3D printable materials and their limited spectrum of physico-chemical properties. To expand this spectrum and employ the 3D-printed objects in areas such as biomedical, mechanical, electronical and so on, the introduction of fibers or particles in a polymer matrix has been widely studied and applied. In this review, all those studies that proposed modified polymer presenting advantages associated with rapid prototyping are reported.

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