Search

Thermal oxidative stability of polyetherimide-based composite materials at processing temperatures was investigated using gas chromatography. The dependence of physico-mechanical and rheological properties on the composition of composites is established.

The paper gives a brief description of carbon and glass fibers used to obtain polymer composite materials with high thermal, physical and mechanical characteristics. Some methods for surface activation of carbon and fiberglass, which will be used to increase the adhesion interactions at the fiber-polymer boundaries, are presented.

The effect of nanosized fillers on the structure and on the deformation and strength characteristics of polymer blends based on nitrile butadiene rubber and polyvinyl chloride was studied.

An investigation was made of the effect of different additions of nanoparticles on the morphology, density, and strength of composites based on synthetic isoprene rubber (SKI-3) and low-density polyethylene (LDPE). The extremal dependence of strength and density on the concentration of nanoparticles was established.

The large drop method was used to investigate the interphase tension of polymer blends of synthetic SKD-35 -butadiene rubber and low-density polyethylene filled with nanosized carbon black DG-100 particles at the boundary with glycerin and air in the temperature range 20–120°C.

The rheological and physicomechanical properties of homopolymers and block copolymers of propylene and their blends modified with organic peroxide compounds with a structure-forming mode of action were investigated, including at subzero temperatures. A tendency for the strength of the matrices of the initial polypropylenes and their blends to increase as the block copolymer content increased and the temperature decreased was established. This is related to the conformational transformation of macromolecular mobility being retarded by the organic peroxide, which requires additional energy consumption.

A study was made of processes of relaxation and failure in composites based on a polymer blend of nitrile–butadiene rubber SKN-26 and polyvinyl chloride with different ratios of the components and different concentrations of carbon black filler. The structure and the strength, mechanical, and surface properties of the composites under different temperature conditions were investigated.

An investigation was made of the effect of annealing and quenching on the interphase tension and strength of carbon-black-filled composites based on butadiene–acrylonitrile rubber with different nanoparticle contents. It was shown that the properties of filled blends depend non-additively on the carbon black concentration and heat treatment.

An investigation was made of the dependence of the dielectric loss tangent and dielectric permittivity of polymer blends based on nitrile–butadiene rubber SKN-26 and polyvinyl chloride and modified with nanosized aluminium oxide and carbon black particles in different concentrations.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.