Modyfikowany fulerenami poliamid 6 wytwarzany metodą anionowej polimeryzacji e-kaprolaktamu

K. Kelar

Published : 2022-08-30

Vol. 51 No. 6 (2006)

Polyamide 6 modified with fullerenes, prepared via anionic polymerization of e-caprolactam

K. Kelar

Abstract

e-Caprolactam containing dispersed fullerenes (in amounts of 0.05, 0.1 or 0.3 wt. %) was subjected to anionic polymerization and then the products obtained were granulated. Investigation of the polymerization kinetics, based on temperature measurements, as well as the investigation of crystallization of polymer obtained (Fig. 1 and 2) showed that fullerenes (in the studied concentration range) did not inhibit the polymerization process. However, they slightly slowed down the crystallization of polyamide 6 and decreased the crystallization degree (DSC results, Fig. 2). The structure of crystalline phase was characterized using WAXS method (Fig. 3 and 4). TGA investigations showed also that fullerene acted as thermal stabilizer of PA 6 (Fig. 5 and 6, Table 2). According to the results of DMTA measurements (Fig. 7 and 8) in the whole range of temperature studied (from -90°C to +240°C) the values of storage modulus (E') of PA 6 modified with fullerenes were higher than those of unmodified PA 6. Modification of PA 6 increases the stress at break and Young's modulus while elongation at break and impact strength decrease a bit (Table 3). The results of the product's estimation show that optimal content of fullerenes is 0.1 wt. %.

Keywords

anionowa polimeryzacja e-kaprolaktamu ; fulereny ; modyfikacja ; struktura ; właściwości cieplne ; właściwości mechaniczne anionic polymerization of e-caprolactam ; fullerenes ; modification ; structure ; thermal properties ; mechanical properties

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Kelar, K. (2022). Polyamide 6 modified with fullerenes, prepared via anionic polymerization of e-caprolactam. Polimery, 51(6), 415–424. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1539

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