Plastic closure of wounds in patients with ischemic form of diabetic foot syndrome.

In the work the analysis of the results of treatment of 48 patients with ischemic and neurotrophic forms of diabetic foot syndrome has been performed. All patients had diabetes mellitus and IV degree of ischemia by Fontaine. After carrying out revascularization operations, a complex treatment was used that included phototherapy, the phase closure of tissue defects with synthetic coating with the application of fibrin clot and plasma enriched with platelet growth factor, vacuum therapy of wounds, autodermoplastics by Tirsch, free autodermoplastics with split skin scar. The im­plementation of the developed tactics allowed to achieve complete wound healing in 91.7% of patients, partial healing – in 8.3% of patients and to avoid high amputations

Plastic closure of wounds in patients with ischemic form of diabetic foot syndrome.

In the work the analysis of the results of treatment of 48 patients with ischemic and neurotrophic forms of diabetic foot syndrome has been performed. All patients had diabetes mellitus and IV degree of ischemia by Fontaine. After carrying out revascularization operations, a complex treatment was used that included phototherapy, the phase closure of tissue defects with synthetic coating with the application of fibrin clot and plasma enriched with platelet growth factor, vacuum therapy of wounds, autodermoplastics by Tirsch, free autodermoplastics with split skin scar. The im­plementation of the developed tactics allowed to achieve complete wound healing in 91.7% of patients, partial healing – in 8.3% of patients and to avoid high amputations

THERMAL CONDUCTIVITY OF COMPOSITIONS BASED ON A SILOXANE BINDER WITH A HIGH FILLER CONTENT OF ALUMINUM HYDROXIDE POWDER

The use of aluminum hydroxide as a filler in composite materials makes them non-flammable. When the thermal conductivity of such compositions is above 1 W/(m-K), they can be used as heat-conducting insulating and non-flammable coatings in power electronics. Thermal conductivity of compositions based on dimethylsiloxane with a filler made from aluminum hydroxide powders of various dissipation is studied in the temperature range from 25 °C to 200 °C, depending on the volume content of the filler. With a volumetric content of filler up to 60%, no significant differences in the values of the thermal conductivity of samples with powders of the investigated fractional groups were detected. With volumetric content of the filler more than 40%, the thermal conductivity of the composition at room temperature exceeded 1 W/(m-K). It is shown that the Burger formula modified by the authors turned out to be sufficiently universal for the calculated estimates of the thermal conductivity of materials with different fillers in a wide range of their volume contents.</jats:p

Mechanical properties of new functional composite materials based on polymeric binders

Abstract Composite materials which include components (binding and fillers) that provide technological and operational characteristics were investigated. As a fillers AlN, Al(OH)3, SiO2, CaSi03 powders are used. Binder – dimethylsiloxane rubber SKTN A + PMS silicone oil in 4:1 proportion. Studied composite materials are designed for dielectric coatings materials creation, which have a high thermal conductivity and do not support combustion (through the use of fillers with flame retardant properties). The results of experimental studies of the mechanical characteristics of composite materials based on siloxane binder and fillers in the form of fine powders AlN, Al(OH)3, SiO2, CaSi03 are presented. The values of strength, coefficient of elasticity, relative elongation in tensile tests, modulus of elasticity in compression tests, Shore hardness are measured.</jats:p