Authors: V.N. Tretyakov, S.D. Evmenov

Title of the article: Processing of a polymer composition based on secondary polycaproamide by insurance casting

Year: 2021, Issue: 6, Pages: 21-26

Branch of knowledge: 05.17.04 Technology of organic substances

Index UDK: 678.5.073.002.68

DOI: 10.26730/1999-4125-2021-6-21-26

Abstract: The operational properties of molded plastic products are largely determined by the technological parameters of the injection molding process, which in turn depend on the properties of the material being processed. Therefore, for each material, the optimal processing mode is selected, which ensures the production of products with the best operational characteristics. Research methods: standard methods for studying the strength and deformation characteristics of polymers: impact strength, breaking stress in bending, modulus of elasticity in bending, deflection in bending, strength at break, modulus of elasticity in tension, elongation at break, heat resistance according to Vicat , hardness, density and shrinkage; planning an experiment. The article shows that - the investigated composition, consisting of 56% VPCA and 44% filler, which was used as fly ash from thermal power plants, can be processed into products by injection molding on commercially available equipment; the operational properties of the resulting products are largely determined by the temperature parameters of the injection molding process, the optimal values of which for this composition are as follows: melt temperature Tr = 255 ± 50C, mold temperature Tf = 700C; the products obtained under this mode have properties corresponding to products for engineering and technical purposes.

Key words: secondary polycaproamide composite material filler fly ash from thermal power plants injection molding technological parameters deformation and strength properties optimal processing temperature

Receiving date: 27.10.2021

Approval date: 05.12.2021

Publication date: 24.12.2021

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