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OBTAINING CELLULOSE TECHNOLOGY FOR THE PHARMACOLOGICAL

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OBTAINING CELLULOSE TECHNOLOGY FOR THE PHARMACOLOGICAL  INDUSTRY    Yusupov Sh.Sh. * , Yusupova N.F. Tashkent Pharmaceutical Institute   Application is used as a filler in tablets in pharmaceuticals. Cellulose and its esters are used  to produce artificial fiber (viscose, acetate, copper-ammonia silk, artificial fur). Cotton, consisting  mainly of cellulose (up to 99.5%), goes to the manufacture of tissues. Production that MCC  improves the compressibility of tablet masses, is used to prolong the action of drugs, in a mixture  with other excipients provides high quality granulates and tablets. MCC is used for the production  of tablets using wet and dry granulation, direct pressing and extrusion. Use of cellulose derivatives in medicine technology. Examples of formulations Prolongation  of the action of medicinal substances in eye drops, drops in the nose and medicinal films,  stabilization of emulsions, bases for ointments, manufacture of tablets, capsules, bactericidal  liquids. Uzbekistan began to grow bananas by hydroponics. Studying the conditions for the  synthesis of fiber and cellulose from banana stems useful for the human body, as well as the  pharmaceutical and food industries," describes various technological developments in the field of  synthesis of fiber and cellulose from banana stems, which do not find proper application after  mechanical processing, as well as in the latest stages of vegetative propagation of bananas on  plantations of the Republic, the conditions of cellulose synthesis were studied, and practical studies  of obtaining materials based on them were conducted. The main changes in the structure and properties of banana fibers subjected to steam  treatment have been studied. The presence of natural fibers in composite materials usually increases  the rigidity of the matrix, maintaining a low density of the material. However, the presence of OH  groups in the various components of the fiber reduces their compatibility with polymer matrices. In  addition to that, natural fibers are usually modified by physical or chemical processes, one of which  is steam treatment. Fiber characteristics included mechanical, thermal testing using  thermogravimetric TGA analysis, FTIR spectroscopy, and morphological analysis using optical  microscopy (OM) and scanning electronics (EMS). The results show that one of the major changes  caused by steam treatment was the removal of some substances present on the surface of the  fibers. This can lead to a weakening of the outer wall of the fiber, which will lead to a decrease in  mechanical behavior.  In conclusion, the structure of the tripling of the banana stem, the stages of development of  the growing season, the morphological structure indicate the characteristics of the trees. This is  shown by the fact that during the synthesis of cellulose, that is, the process of delegation in several  stages, the distribution of chemical reagents with different consumption rates can lead to  unfavorable conditions for wastewater disposal. One of the most characteristic aspects of the  dissertation research is the reduction of the concentration of alkali (60 g / l) and the synthesis time  (420 minutes) only in the natron-alkaline method, even at high pressure. It is due to that exclusion  of adverse above processes.  жүктеу/скачать 2,6 Mb. Достарыңызбен бөлісу: