2023, Vol. 8, No. 4. - go to content...

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Belitskaya O.A. Improving antistatic footwear using additive technologies. Journal of Clothing Science. 2023; 8(4). Available at: https://kostumologiya.ru/PDF/09TLKL423.pdf (in Russian).

Improving antistatic footwear using additive technologies

Belitskaya Olga Alexandrovna
Russian State University named after Kosygin A.N. (Technology. Design. Art), Moscow, Russia
E-mail: belitskaya-oa@rguk.ru
ORCID: https://orcid.org/0000-0002-7808-4027
RSCI: https://elibrary.ru/author_profile.asp?id=673248
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=57750175300

Abstract. The article presents the results of studies of the electrical resistance of the bottom parts of special shoes, improved in terms of antistatic characteristics using additive technologies. As the object of study, a model of special shoes with a three-layer sole using the injection molding method was chosen. In order to give the model antistatic properties, the bottom layer of the sole in contact with the surface of the floor covering must be made of conductive material. To do this, we examined in detail the branded assortment of ABS plastics that are used for FDM printing. A comparison was made of the technical characteristics of ABS plastics from the largest Russian manufacturers in terms of the following parameters: hardness, fragility, wear resistance, heat resistance, electrical conductivity, etc. It was revealed that in terms of electrical conductivity, which is decisive for antistatic shoes, conductive plastic U3 ABS Conductive 2M from the company U3Print is suitable. A 3D scan of the sole of the shoe model was performed to design a conductive element. The obtained result made it possible to design a model of an additional insert in the sole. Based on the resulting model, an insert made of conductive plastic was printed on a 3D printer and installed in the sole. To measure electrical resistance, a VKG A-770 device was used. The electrical resistance of a shoe model without a conductive insert and with an insert was measured. It was revealed that the electrical resistance values obtained by measuring the model with a conductive insert correspond to the resistance values that antistatic shoes should have in accordance with the technical requirements of GOST R EH ISO 20345-2011 «System of occupational safety standards. Personal protective equipment for feet. Safety shoes. Technical requirements» namely, antistatic shoes are shoes whose electrical resistance lies in the range from 100 kOhm to 1 000 MOhm inclusive.

Keywords: shoes; antistatic shoes; plastic; additive technologies; 3D printing; electrostatic field; electrical resistance; conductive plastic

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