Recycling abilities of thermoplastic ionomers, as exemplified by SURLYNR

• Autorzy: Sykutera D. , Czyżewski P.
• Języki publikacji: EN

Abstrakty

EN

The results presented in this paper apply to the research of grinding and cutting process of ionomer copolymer (E/MAA) under the trade name SurlynŽ from DuPont company. Processing of this material is difficult and its susceptibility to mechanical recycling is limited. The results presented here are an important part of research concerning management of ionomer waste formed in the injection moulding process (defective moulded pieces with and the thick-walled injection moulding waste). The plastic material under examination is applied in the line of perfume, the products are expected to have transparency of the glass and don't have disqualifying surface defects. This requires the use of non-standard conditions in the injection moulding process and the construction of complicated structures of injection moulding tools (ie, three plate mould), along with valve gate hot runner systems. In the structure of three plate mould we use cold runner system in hot runner injection moulds, the former of which forms the so-called injection waste, i.e. runner, which further increases the cost of the tool. In the case of plastics considered, injection waste constitutes up to 30 percent of the weight of the moulded piece, which, with high prices of this plastic (SurlynŽ price is more than three times higher than the commonly used polyolefin materials) and reduced re-use possibilities, constitutes unaccepted, additional cost of production. This paper is an attempt to develop favorable conditions for the process of grinding of SurlynŽ in terms of its re-use in secondary processing. The study shows that the temperature of feed has a significant impact on the level of thermal load of the material subjected to grinding and cutting, as well as on the effectiveness of disintegration.

Słowa kluczowe

EN

ethylene/methacrylic acid copolymers; recycling of ionomers; recycling of Surlyn (E/MAA)

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2012
• Tom: Vol. 7, no 3
• Strony: 301--308
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Sykutera D.

autor

Czyżewski P.

• University of Technology and Life Sciences in Bydgoszcz Faculty of Mechanical Engineering Department of Plastics and Recycling Processing ul. Kaliskiego 7, 85-796 Bydgoszcz, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Company information materials of DuPont, [on-line], (28, 06, 2012), access www2.dupont.com/Surlyn/en_US/>_
• [2] Czaja, K., Poliolefiny, Wydawnictwo Naukowo-Techniczne, Warszawa 2005.
• [3] Dziadur, W., Litak A., Wpływ jonomerycznego kopolimeru etylenu na strukturę krystaliczną i własności mechaniczne poliacetalu, Inżynieria Materiałowa 1998, R. XIX, nr 4, pp. 946 - 949.
• [4] Dziadur, W., Litak A., Efekty modyfikacji poliacetalu kopolimerem etylenu, Zeszyty Naukowe. Mechanika 43 (216), ATR Bydgoszcz, pp. 15-21, Bydgoszcz 1998.
• [5] Kuzia, A., Opakowania żywności. Praca pod red. Bohdana Czerniawskiego i Jana Michniewicza, Wydawnictwo Agro Food Technology 1998.
• [6] Information materials, Żywica Surlyn DuPont wykorzystywana w opakowaniach, [on-line], (27, 06, 2012), access http://www.plastech.pl/wiadomosci/artykul_1964_1/Zywica-Surlyn-DuPont-wykorzystywana-w-opakowaniach
• [7] Information materials, DuPont: Nowa technologia obtrysku daje ogromne możliwości w dziedzinie projektowania opakowań, [on-line], (27,06,2012), Access <http://opakowania.com.pl/Wiadomo_ci/DuPont-Nowa-technologia-obtrysku-daje-ogromnemozliwosci-w-dziedzinie-projektowania-opakowa_-26378.html >
• [8] Garcíaa, S.L., Sánchez-Valdésb, S., Ramos-Devallec, L.F., Effect of type and concentration of ionomer compatibilizer on the HDPE/Ionomer/Clay nanocomposites morphology, Materials Science Forum, (2010), 644, pp. 17-20.
• [9] Lim, H.T., Liu, H., Ahn, K.H., Lee, S.J., Hong, J.S., Effect of added ionomer on morphology and properties of PP/organoclay nanocomposites, Korean Journal of Chemical Engineering, (2010), 27 (2), pp. 705-715.
• [10] Sykutera, D., Stanowisko badawcze i wstępne wyniki badań cięcia termoplastycznych tworzyw porowatych, Przetwórstwo Tworzyw, 4 (136), pp. 214-217, Gliwice 2010.
• [11] Sykutera, D., Badanie procesu rozdrabniania odpadów gumy cięciem hiperboloidalnym w aspekcie wykorzystania otrzymanego proszku gumowego do napełniania poliamidu 6, Rozprawa doktorska, Politechnika Poznańska, Pozna_ 1998.
• [12] Sykutera D., Properties of solid polyurethane recyclat obtained in the compact multistage system of cutting mills, Journal of POLISH CIMAC, Vol.5, No. 3, pp. 201-206, Gdańsk 2010.