INVESTIGATION ON HIGHLY FILLED COMPOSITE MATERIALS WITH REGULATED PHYSICAL AND MECHANICAL PROPERTIES BASED ON SYNTHETIC POLYMERS AND ORGANIC AND INORGANIC FILLERS

Thermoplastic and soluble in organic solvents polyetherimide is of great interest for the creation of heat-resistant composite materials with high physical and mechanical properties. In recent decades, the main scientific approaches to the synthesis of polyimides with the ability to process from melt and solutions in organic solvents have been developed. According to this methodology, the glass transition temperature of rigid-chain polyimides is reduced by increasing the flexibility of the main polymer chain and/or by reducing the intermolecular interaction. Evolution of fine organic synthesis is one of the priority directions of development of chemical technology. Chemistry of high-molecular compounds is the subject of research by various domestic and foreign scientists. This interest is due to the prospects for the use of materials for industrial purposes. The polyetherimide contains various aromatic, heterocyclic and cycloaliphatic groups and systems in its chain. This article describes the main approaches to the creation of polymers with improved, compared with polyimides, technological properties and prospects for their application in the production of filled composite materials based on them. The paper presents the properties of the materials under consideration as a justification for the creation of heat-resistant composite materials.

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Physical and Mechanical Properties of Natural Leaf Fiber-Reinforced Epoxy Polyester Composites

Polymers ◽

10.3390/polym13091369 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1369

Author(s):

Sanjeev Kumar ◽

Lalta Prasad ◽

Vinay Kumar Patel ◽

Virendra Kumar ◽

Anil Kumar ◽

...

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Synthetic Fibre ◽

Low Cost ◽

Fibre Length ◽

Physical And Mechanical Properties ◽

Natural Fibres ◽

Risk Environment ◽

Insulation Property ◽

Natural Leaf

In recent times, demand for light weight and high strength materials fabricated from natural fibres has increased tremendously. The use of natural fibres has rapidly increased due to their high availability, low density, and renewable capability over synthetic fibre. Natural leaf fibres are easy to extract from the plant (retting process is easy), which offers high stiffness, less energy consumption, less health risk, environment friendly, and better insulation property than the synthetic fibre-based composite. Natural leaf fibre composites have low machining wear with low cost and excellent performance in engineering applications, and hence established as superior reinforcing materials compared to other plant fibres. In this review, the physical and mechanical properties of different natural leaf fibre-based composites are addressed. The influences of fibre loading and fibre length on mechanical properties are discussed for different matrices-based composite materials. The surface modifications of natural fibre also play a crucial role in improving physical and mechanical properties regarding composite materials due to improved fibre/matrix adhesion. Additionally, the present review also deals with the effect of silane-treated leaf fibre-reinforced thermoset composite, which play an important role in enhancing the mechanical and physical properties of the composites.

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Effect of Structural Differences on the Mechanical Properties of 3D Integrated Woven Spacer Sandwich Composites

Materials ◽

10.3390/ma14154284 ◽

2021 ◽

Vol 14 (15) ◽

pp. 4284

Author(s):

Lvtao Zhu ◽

Mahfuz Bin Rahman ◽

Zhenxing Wang

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Three Dimensional ◽

Sheet Thickness ◽

Physical And Mechanical Properties ◽

Sandwich Composites ◽

Computed Tomography Images ◽

And Performance ◽

Industrial Textiles ◽

Load Conditions

Three-dimensional integrated woven spacer sandwich composites have been widely used as industrial textiles for many applications due to their superior physical and mechanical properties. In this research, 3D integrated woven spacer sandwich composites of five different specifications were produced, and the mechanical properties and performance were investigated under different load conditions. XR-CT (X-ray computed tomography) images were employed to visualize the microstructural details and analyze the fracture morphologies of fractured specimens under different load conditions. In addition, the effects of warp and weft direction, face sheet thickness, and core pile height on the mechanical properties and performance of the composite materials were analyzed. This investigation can provide significant guidance to help determine the structure of composite materials and design new products according to the required mechanical properties.

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Effect of Wood Filler Concentration on Physical and Mechanical Properties of PLA-Based Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.887.110 ◽

2021 ◽

Vol 887 ◽

pp. 110-115

Author(s):

G.A. Sabirova ◽

R.R. Safin ◽

N.R. Galyavetdinov

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Elastic Modulus ◽

Composite Materials ◽

Impact Strength ◽

Wood Flour ◽

Experimental Studies ◽

Physical And Mechanical Properties ◽

Filler Concentration ◽

High Concentration

This paper presents the findings of experimental studies of the physical and mechanical properties of wood-filled composites based on polylactide (PLA) and vegetable filler in the form of wood flour (WF) thermally modified at 200-240 °C. It also reveals the dependence of the tensile strength, impact strength, bending elastic modulus, and density of composites on the amount of wood filler and the temperature of its thermal pre-modification. We established that an increase in the concentration of the introduced filler and the degree of its heat treatment results in a decrease of the tensile strength, impact strength and density of composite materials, while with a lower binder content, thermal modification at 200 °C has a positive effect on bending elastic modulus. We also found that 40 % content of a wood filler heated to 200 °C is sufficient to maintain relatively high physical and mechanical properties of composite materials. With a higher content of a wood filler, the cost can be reduced but the quality of products made of this material may significantly deteriorate. However, depending on the application and the life cycle of this product, it is possible to develop a formulation that includes a high concentration of filler.

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METHOD OF SAMPLE MANUFACTURING FROM MULTILAYER COMPOSITE MATERIALS FOR STUDYING THEIR MECHANICAL PROPERTIES

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES MARINE ENGINEERING AND TECHNOLOGIES ◽

10.24143/2073-1574-2018-4-16-23 ◽

2018 ◽

pp. 16-23

Author(s):

Alsaid Mazen ◽

Ali Salamekh

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Polymer Composite ◽

Testing Machine ◽

Physical And Mechanical Properties ◽

Polymer Composite Materials ◽

Technological Parameters ◽

Cutting Out ◽

Method Of Production ◽

Economic Considerations

In the last decades there is increasing the need to apply polymer composite materials in different industries, particularly in shipbuilding. There are developing single structures made from polymer composite materials to be used on board ships. The article focuses on technology of manufacturing slabs from polymer composite materials to carry out mechanical testing in the laboratory special standard units. Mechanical properties of polymer composite materials depend on molding technologies. There has been described a technology of sample manufacturing from polymer composite materials reinforced with glass fiber mat with fiberglass plastics. The technique of testing the specified samples for tensile strength has been considered. The sizes and shapes of the samples as well as the technological parameters of the manufacturing process have been validated, depending on the standard requirements and the technological features of the testing machine. The physical and mechanical properties of the components that make up the composite materials are considered. The sequence of stacking layers for preparation of plates from composite materials is indicated. The dimensions of the plates for cutting out finished samples are determined, depending on the method of production. The way of laying plates from composite materials has been chosen on the base of economic considerations and conditions of accessibility. The obtained results of mechanical properties can be used in solving problems of application of polymer composite materials in shipbuilding, for example, in manufacturing superstructures of some dry cargo vessels.

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METAL COMPOSITE MATERIALS BASED ON TITANIUM ALLOYS, REINFORCED WITH REFRACTORY PARTICLES (review)

Proceedings of VIAM ◽

10.18577/2307-6046-2021-0-6-36-45 ◽

2021 ◽

pp. 36-45

Author(s):

E.I. Krasnov ◽

◽

V.M. Serpova ◽

L.G. Khodykin ◽

A.V. Gololobov ◽

...

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Composite Materials ◽

Literature Review ◽

Titanium Alloys ◽

Chemical Nature ◽

Physical And Mechanical Properties ◽

Metal Composite ◽

The Matrix ◽

Metal Composite Materials

Presents a literature review in the field of methods for strengthening titanium and its alloys by introducing various refractory particles into the matrix. The main problematic issues related to the chemical nature of refractory particles and titanium alloys that arise during hardening are briefly described. The main structural, physical and mechanical properties and morphology of such metal composite materials are described. The dependence of the influence of various refractory particles and their amount, as well as the effect of heat treatment on the physical and mechanical properties of microns based on titanium alloys, is presented.

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The Effect of Sizing Additives for Carbon Fiber on the Mechanical Properties of Polyetherimide Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.869.488 ◽

2020 ◽

Vol 869 ◽

pp. 488-493

Author(s):

Aues A. Beev ◽

Svetlana Yu. Khashirova ◽

Azamat L. Slonov ◽

Ismel V. Musov ◽

Azamat Zhansitov ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Fiber ◽

Intermolecular Interactions ◽

Carbon Fibers ◽

Polymer Matrix ◽

Physical And Mechanical Properties ◽

Sizing Agents ◽

Filled Composite

The article presents the results of sizing of discrete carbon fibers with various substances and their effect on the properties of polyetherimide composites. As sizing agents, 1,3-diaminobenzene, 4,4'-dihydroxy-2,2-diphenylpropane, polyetherimide and oligoetherether sulfone were used. The study of physical and mechanical properties showed that all the substances used increase the properties of the carbon-filled composite based on polyetherimide. The highest mechanical properties are demonstrated by a composite containing carbon fibers treated with 1,3-diaminobenzene, which indicates improved compatibility of the filler and the polymer matrix and enhanced intermolecular interactions.

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