Composition properties of rubber from parts of Taraxacum Kok-saghyz roots

2022 ◽  
Author(s):  
Yangpeng Zhuo ◽  
Chen Zhang ◽  
Yanfang Zhao ◽  
Benxiang Hu ◽  
Shuangquan Liao ◽  
...  
Keyword(s):  
Composition Properties

Composition, Properties and Origin of a New Type of Haematite

1984 ◽  
Vol 19 (4) ◽  
pp. 343-347
Author(s):  
Karl Schmetzer ◽  
Hermann Bank
Keyword(s):  
New Type ◽  
Composition Properties

Rubber Composition–Properties Relationships during Tire Numerical Simulation and Design Optimization

2017 ◽  
Vol 45 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Alexey Mazin ◽  
Alexander Kapustin ◽  
Mikhail Soloviev ◽  
Alexander Karanets
Keyword(s):  
Numerical Simulation ◽  
Design Optimization ◽  
Strain Tensor ◽  
General Purpose ◽  
Orthogonal Functions ◽  
Element Analysis ◽  
Time Investment ◽  
Footprint Analysis ◽  
Composition Properties ◽  
Nonlinear Elastic

ABSTRACT Numerical simulation based on finite element analysis is now widely used during the design optimization of tires, thereby drastically reducing the time investment in the design process and improving tire performance because it is obtained from the optimized solution. Rubber material models that are used in numerical calculations of stress–strain distributions are nonlinear and may include several parameters. The relations of these parameters with rubber formulations are usually unknown, so the designer has no information on whether the optimal set of parameters is reachable by the rubber technological possibilities. The aim of this work was to develop such relations. The most common approach to derive the equation of the state of rubber is based on the expansion of the strain energy in a series of invariants of the strain tensor. Here, we show that this approach has several drawbacks, one of which is problems that arise when trying to build on its basis the quantitative relations between the rubber composition and its properties. An alternative is to use a series expansion in orthogonal functions, thereby ensuring the linear independence of the coefficients of elasticity in evaluation of the experimental data and the possibility of constructing continuous maps of “the composition to the property.” In the case of orthogonal Legendre polynomials, the technique for constructing such maps is considered, and a set of empirical functions is proposed to adequately describe the dependence of the parameters of nonlinear elastic properties of general-purpose rubbers on the content of the main ingredients. The calculated sets of parameters were used in numerical tire simulations including static loading, footprint analysis, braking/acceleration, and cornering and also in design optimization procedures.

Modern liquid embolizing agents based on polymers: composition, properties and applications (review)

2021 ◽  
pp. 3-13
Author(s):  
D.V. Reshetnyak ◽  
◽  
E.S. Zhavoronok ◽  
O.A. Legonkova ◽  
A.S. Ogannisyan ◽  
...  
Keyword(s):  
Composition Properties

Analysis of published information on polymer-based liquid embolizing agents is carried out in this review. The registered and used brands are described: Onyx™, PHIL™ and Squid, as well as less well-known Easyx™ and Menox™. Data on their composition, properties and application are given. The advantages and the disadvantages of the described embolizing agents are discussed.

NASICON-structured Na ion conductor for next generation energy storage

2021 ◽  
pp. 2130005
Author(s):  
Qing Huang ◽  
Gongxuan Chen ◽  
Ping Zheng ◽  
Wei Li ◽  
Tian Wu
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolytes ◽  
Electrical Energy ◽  
Next Generation ◽  
Ion Conductor ◽  
Electrical Energy Storage ◽  
Composition Properties ◽  
Stable Structures

The demand for electrical energy storage (EES) is ever increasing in order to develop better batteries. NASICON-structured Na ion conductor represents a class of solid electrolytes, which is of great interest due to its superior ionic conductivity and stable structures. They are widely employed in all-solid-state ion batteries, all-solid-state air batteries, and hybrid batteries. In this review, their structure, composition, properties, and applications for next generation energy storage are reviewed.

Modern Transparent Papers: Materials, Degradation, and the Effects of Some Conservation Treatments

1992 ◽  
Vol 267 ◽  
Author(s):  
Dianne Van Der Reyden ◽  
Christa Hofmann ◽  
Mary Baker ◽  
Marion Mecklenburg
Keyword(s):  
Physical Properties ◽  
Organic Solvents ◽  
Materials Characterization ◽  
Research Projects ◽  
Specific Chemical ◽  
Effects Of Aging ◽  
Composition Properties

ABSTRACTModern transparent papers, also known as tracing papers, require specific chemical and physical properties, such as translucency, smoothness, and whiteness, which are produced by specially formulated compositions and manufacturing procedures. Ironically, these special formulations may in some ways render such papers susceptible to problems from damage and degradation, while also making them particularly reactive to moisture and solvents that must be used in conservation treatments to correct these problems. In order to evaluate the effects of water and organic solvents on such papers, four research projects were designed to consider the variables of paper composition, properties, type of solvent, technique of application of solvent, and flattening. This paper summarizes findings on materials characterization, degradative effects of aging, and some effects of solvents used on transparent papers for stain reduction, humidification, and flattening.

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