PROPERTIES AND APPLICATION OF MOLDING CLAYS
Journal Title: International scientific journal Science and Innovation - Year 2023, Vol 2, Issue 11
Abstract
The maximum property enhancement in nano clays reinforced polymers is obtained when high levels of intercalation, exfoliation and dispersion of the nano clay in the polymer matrix is achieved. Processing of polymer nanocomposites by melt blending techniques requires sufficient stress levels and time for a maximum exfoliation/intercalation of the nano clays (with minimum polymer degradation), which both are very limited in conventional polymer processing techniques. Shear Controlled Orientation in Injection Moulding, SCORIM, is a non-conventional injection moulding technique based on the concept of in-mould shear manipulation of the melt during the polymer solidification phase. This technique is able of applying high shearing levels to the polymer, leading to high levels of molecular orientation. SCORIM of nano clay-based polymer nanocomposites may be therefore beneficial for achieving high levels of nano clay intercalation/exfoliation and orientation, thus imparting improved mechanical properties. In this work, a nano clay based masterbatch was mixed with polypropylene and direct injection moulded by conventional and SCORIM techniques. In SCORIM, two extreme shear levels were applied by changing processing conditions (melt temperature and shear time). We assess therefore the effect of high shear conditions in the levels of intercalation/exfoliation and orientation of the nano clay in the polymer matrix and in the mechanical properties of the nanocomposite. The levels of clay intercalation/exfoliation were evaluated by Wide-Angle X-ray Scattering
Authors and Affiliations
Toymas Madatov, Mahmudova Feruza, Muftullayeva Marziya, Sarvar Parmonov. , Asadjon Kambarov
Keywords
Related Articles
- EP ID EP725035
- DOI 10.5281/zenodo.10091655
- Views 40
- Downloads 0
RUSSIAN TEACHING METHODS FOR STUDENTS (USING THE EXAMPLE OF NATIONAL GROUPS)
This article reveals the concept of the linguistic and didactic foundations of teaching Russian as a national language, examines linguistic phenomena in teaching Russian to national groups of students, analyzes teaching...
MECHANISM FOR DEVELOPMENT OF PROFESSIONAL TRAINING OF FUTURE ENGINEERS-PROGRAMMERS
In this article, the competences, mechanisms, principles, scientific foundations, practical and methodological results of the development of professional training of future engineers-programmers are discussed in detail....
THE ROLE OF TRADITIONS, CUSTOMS AND RITUALS OF UZBEK PEOPLE IN THE STRUGGLE AGAINST MASS CULTURE IN YOUTH EDUCATION
Each nation has its own national traditions, customs and rituals that have been improved over the centuries and are aimed at educating the future young generation. Today, the Uzbek people follow their historical traditio...
PARADIGMATIC AND SYNTAGMATIC RELATIONS OF LINGUISTIC UNITS IN UZBEK LANGUAGE
The article discusses several controversial issues considering paradigmatic and syntagmatic relations of linguistic units in Uzbek language. The main focus is given to analyze the differences between paradigmatic and syn...
FEATURES OF MILITARY AND PATRIOTIC EDUCATION OF YOUTH
The article is devoted to the peculiarities of the military-patriotic education of youth.