ANTAGONISM EFFECTS WHICH OCCUR IN HDPE COMPOSITIONS MODIFYING ADDITIVES

UDC 678.7-036

  • Lenartovich Liliya Alekseevna – PhD (Engineering), Senior Lecturer, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: lenartovich@belstu.by

  • Prokopchuk Nikolay Romanovich – Corresponding Member of the Nathional Academy of Sciences of Belarus, DSc (Chemistry), Professor, Professor, the Department of Polymer Сomposite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nrprok@gmail.com

  • Kasperovich O’lga Michailovna – PhD (Engineering), Associate Professor, Assistant Professor, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: kasperovichvolha@yandex.by

DOI: https://doi.org/10.52065/2520-2669-2021-247-2-107-114

Key words: HDPE, stabilizer, heat resistance, elongation at break, tensile strength at strain.

For citation: Lenartovich L. A., Prokopchuk N. R., Kasperovich O. M. Antagonism effects which occur in HDPE compositions modifying additives. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 2 (247), pp. 107–114 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2021-247-2-107-114.

Abstract

The joint effect of various functional additives on the deformation-strength properties of lowpressure polyethylene (HDPE) and their change during heat aging has been investigated. The following functional additives were used in the work: chalk-filled masterbatch EFPP 1001 E-Filler, granular talcfilled masterbatch ADDITIVE 13169, sliding additives ADDITIVE DL 5644 and 5540, antiblocking additives AB 50035 and PE-AB 50035, pigment concentrates White 41110 and Realpax 10030E 50025, antistatics and PO AE 23, dryer POLI-CH DC 451, fire retardant FR 400. Deformation and strength properties of the compositions were determined according to GOST 11262–2017 before and after aging for 300 h at 100°C in air. The antagonism effect was revealed when the stabilizing additive Hostanox 03 and the pigment White 41110 were used together in HDPE. Thus, after aging for 300 h, the elongation for the HDPE + White 41110 composition was 102%, while with the addition of the stabilizer Hostanox 03 to the composition, the elongation values fall to 79%, which indicates a possible interaction of the additives, leading to a decrease in the effectiveness of the stabilizer. Also, a similar effect is observed when using additives such as slip additive ADDITIVE 5540, desiccant, Realpax 10030 pigment, antiblock PE-AB 50035 and antistatic PO AE 23.

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23.04.2021