Студенттер мен жас ғалымдардың «фараби әлемі» атты халықаралық ғылыми конференциясы

STUDY OF THE PROPERTIES OF POLYMER COMPOSITE MATERIALS WITH

жүктеу/скачать 2,6 Mb. Pdf көрінісі бет 156/399 Дата 06.11.2023 өлшемі 2,6 Mb. #190003

STUDY OF THE PROPERTIES OF POLYMER COMPOSITE MATERIALS WITH  BIOLOGICALLY ACTIVE COMPLEX    Otegenova B.O., Yessenov A.A.  Scientific supervisor: PhD Kudaibergenova B.M.  Al-Farabi Kazakh National University  utegenova.bb@mail.ru Currently, studies of composite materials on the basis of natural polymers are particular  increasing the interest of scientists. Due to valuable properties such as solubility in water, non- toxicity, compatibility and tendency to complexation of natural polymers are used for medicine as  carriers of medicinal substances. In this work, the possibility of obtaining composite materials on the basis of natural  polysaccharides – sodium carboxymethyl cellulose (NaCMC) and gelatin with the addition of  biologically active complex-alchidine was studied. The choice of NaCMC is also due to a number  of valuable properties: high swelling ability, indifference to other raw materials, non-toxicity,  sorption ability, availability and biodegradability.  For this purpose, different gel concentrations were obtained, such as 5 %, 7 %, 10 % with and  without addition of glycerin. The gels were obtained at different temperatures like 25 °C, 50 °C, 70  °C, 90 °C with a constant agitator method while maintaining a constant temperature in the  thermostat. For the swelling process, gels with concentrations of 7 % were used, because of good  gel forming properties. The swelling of the gels was studied in the physical solution, water, and pH  (1; 3; 5; 7; 9) solutions. Swelling of the composite gels was investigated at 24 and 48 hours in the  temperature of 70 °C and 25 °C. In the results, composite material without addition of glycerin  showed the smallest degree of swelling in the 70 °C, and in the 25 °C degrees, the gel without  addition of glycerin was the highest. In order to obtain of composite materials and control their properties, it is important to know  the laws of interaction of components with each other. The results of studies using equilibrium  swelling methods have shown that the degree of swelling depends on the temperature of the  composites. After that, it was found that the most optimal temperature for gel was 50 °C degrees.  Further, sorption, desorption, viscosity and other mechanical properties were studied at 50 °C  degrees of composite material with concentration of 7 % without and with addition of glycerin.  жүктеу/скачать 2,6 Mb. Достарыңызбен бөлісу: