The results of experimental studies on the chemical modification of (co) polymers of 2-hydroxyethyl methacrylate are generalized. Conditions have been chosen for directional alkaline hydrolysis with preservation or modification of the links in the macrochain. The properties of copolymers of 2-hydroxyethyl methacrylate with N-vinyl succinimide, N-vinyl amidosuccinic acid, vinyl acetate, acrylamide and carboxyl-containing monomers have been studied.

Level of crystallinity in volume natural extension ratio was studied in comparison this crystallinity in volume before deformation. Four different type polyethylene was studied Basell HOSTALEN 4731 B, PE100 SABIC HDPE BM 6246 LS, PE100 SABIC HDPE B 6246, PE100-RC BOREALIS HE 3492-LSH. All types of products have level lost of crystallinity near 4-9%

The obtained composite materials based on UHMWPE with increased wear resistance. The materials can be used as a structural and as modifiers in the rubber mixture to obtain rubber seals with high performance properties.

Review of aromatic polyetherether ketones in the last 25 years

The process of obtaining polymer-polymeric complexes of a triple composition with a new low-molecular intermediate was investigated. The conditions of the complexation process, the composition and structure of the polycomplexes, as well as schemes for the formation of ternary interpolymer complexes based on polyacrylic acid, sodium polyphosphate and hexamethylenediamine have been studied

The paper is devoted to the calculation of axisymmetric article of complex shape, obtained by the method of negative thermoforming

In this work investigation of varies data of wear was conducted on thermoplastic esters and polyethylene. The method used for study was based on semibonded and bonded abrasive. It was proven that higher size grinding stones such as 32H are applicable for wear classification list in terms of higher or lower values. The values of wear of both thermoplastic esters and polyethylene marks are close what allows the production of goods with similar criteria of wear.

Using the methods of differential-scanning calorimetry, thermally stimulated depolarization currents, and dielectric spectroscopy, the effect of irregularities in polymer chains on crystallization and melting processes, as well as on the rate and depth of crystallization, was studied. It is shown that the detected polarization effects are associated with phase transitions of the first kind, and the introduced defects in the main or side chains can substantially change the rate of crystallization.

The results of studies of the effect of excipients mineral and organic origin of the mechanical properties of polysulfone based on 4,4'-dihydroxydiphenyl and 4,4'-dichlordiphenylsulfone. It has been shown that the introduction of hard fillers is accompanied by increased modulus and reduced ductility of the polymer matrix, the intensity of these effects depends on the concentration, shape and particle size additives. It was revealed that the composites with talc and discrete carbon fibers are characterized by higher mechanical properties. Their test as materials for FDM 3D printing method shows the highest suitability composites with talk for this technology.

The article considers principle of action of fire retardant consisting of the minerals complex composition of hydromagnesite and huntite. The fire retardant is used as filler for halogen-free flame retardant cable compounds. Mixtures of the two minerals huntite and hydromagnesite is an alternative to widely used in industry aluminum trihydrate and magnesium hydroxide

The influence of the concentration of some organochlorine additives on the physico-mechanical properties of polydicyclopentadiene (PDCPD) is considered. The properties of compositions with a content of flame retardants in PDCPD in the range from 0 to 15 % by weight were studied. The results showed that flame retardants have different effects on the physico-mechanical properties of the compositions obtained, the dependencies are not linear in nature. There is an optimal concentration range of fillers (5 - 7 %), probably related to their molecular weight and compatibility with the monomer.

In this work, the influence of fatty acid and their derivatives on the mechanical and technological properties of filled polyethylene compounds is investigated. The sharp increase effect of the filled polyethylene compounds deformation is detected if stearic acid and calcium stearate mix is used. A different secondary polyethylene is analyzed and replacement of primary polyethylene by secondary conditions is identified.

The paper shows the specificity of the ultrasonic welding of dissimilar thermoplastics. The proposed processing methods to compensate for differences in the acoustic properties of welded materials and, thus, to obtain high-quality welded joints. Identified four stages of the mechanism of formation of welded connection at ultrasonic welding of dissimilar plastics.

The paper presents technological solutions aimed at creating film materials based on polyolefins, with a complex of structural, morphological and physicochemical characteristics for packaging and increasing the shelf life of baking wheat flour.

The paper deals with the selection methods of materials intended for use as an internal layer of slurry pipelines. Methods for testing materials wear resistance, as well as erosion values of various materials are given. The necessity to evaluate materials performance depending on operating conditions is stressed.

With using different diameter polyethylene pipes was studied tier strength near the welding line. Tier properties was detailed of different distance between welding line and point of measurement tier properties. Existence low properties zone was establish on resistance 1-1,5mm. Between line on welding and point of measurement tier properties. In this zone level of tier properties may be minus 25%. Picture exchange of properties in plastic pipe different diameter is the same.

Physicomechanical and rheological properties of compositions on the basis of secondary polymeric raw materials and filler of natural origin - wood flour are considered in work. Introduction to composition up to 10 mass part wood flour will allow to form the materials which aren't conceding on the physicomechanical indicators to initial polypropylene.