Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/S0104-14282006000200012
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

Films of Post-Consumer Polypropylene Composites for the Support Layer in Synthetic Paper

Manrich, Sati; Correa, Ana Carolina; Santi, Cristiano R. de

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Abstract

Composite films were studied as possible candidates for the central or support layer of synthetic paper in a multilayer structure. Recycled post-consumer polypropylene films were reinforced with inorganic fillers at various compositions and under several processing conditions, with the aim of optimizing the physical and mechanical properties of rigidity and low density. Three types of CaCO3, with and without surface treatment of the particles, were used, but only the treated ones were suitable for use in paper films. These samples were then used to analyze possible correlations of properties with composition and processing conditions, varying the CaCO3 particle size distribution and the film processing method, from casting extrusion (flat die) to blown-film extrusion (tubular die). An increase in film stiffness was observed as a function of CaCO3 content and a concentration of 30% CaCO3 was found to be best for the specific application. The flat films were stiffer than the tubular ones. The densities of all the composite films were considered high, compared to a pulp-based paper and a commercial synthetic paper. No significant effect on the physical-mechanical properties analyzed was observed when the CaCO3 particle size distribution was varied. Microcavities were found to form at the surface of flat films submitted to a bi-orientation process performed at laboratory scale; no other sample showed this surface morphology.

Keywords

Polypropylene, synthetic paper, post-consumer waste, composite, oriented film

References



1. “O Setor de Papel e Celulose no Brasil e no Mundo”, BNDES, (1996).

2. “Produção e Exportação em Alta: Resultados de 2004 Refletem Esforço do Setor” - O Papel, ABTCP, LXV, 12, p. 46, (2004).

3. “Desempenho de Setor em 2004 e Perspectivas Para 2005” - Bracelpa News, Brazilian Association of Cellulose and Paper, XI, 525, (2005).

4. “Oportunidade para o Crescimento” - Bracelpa News, Brazilian Association of Cellulose and Paper, XI, 520, (2004).

5. “Uma Advertência Muito Séria” - Celulose & Papel, Bracelpa, 20, 75, p.3, (2004).

6. “A Madeira Vai Virar Ouro” - O Papel, ABTCP, LXV, 5, p.98, (2004).

7. Almeida, M.C.; Manrich, S. - Polímeros: Ciência e Tecnologia, vol.12, 1, p. 20-27, (2002).

8. Forlin, F.J.; Faria, J.A.F. - Polímeros: Ciência e Tecnologia, vol.12, 1, p. 1-10, (2002).

9. Technical Catalogs CEMPRE, http://www.cempre.org.br

10. Technical Bulletin Supermicro KRVA, Imerys do Brasil Mineração Ltda, Rev.03, April 2003.

11. Data Sheet DAT206CC Carbital 110S, Imerys Minerals Ltd, Second Edition, (2001).

12. Zuiderduin, W.C.J.; Westzaan, C.; Huétink, J.; Gaymans, R.J. - Polymer, 44, p. 261-275, (2003).

13. Liang, J. Z.; Tang, C. Y.; Li, R. K. R.; Wong T.T. - Metals and Materials, v. 4, p. 616-619, (1998).

14. Thio, Y.S.; Argon, A.S.; Cohen, R.E.; Weinberg, M. - Polymer, 43, p. 3661-3674, (2002).

15. Silva, A.L.N.; Rocha, M.C.G.; Moraes, M.A.R.; Valente, C.A.R.; Coutinho, F.M.B. - Polymer Testing, 21, p. 57-60, (2002).

16. Miller, M.L. - “Encyclopedia of Polymer Science and Technology: Plastics, Resins, Rubbers, Fibers”, vol.1, Interscience Publishers, New York, (1964).

17. Ohno, A.; Goseishi, O.Y. - “Synthetic Paper with Multi-Layer Structure and Excellent Printing Property”, Patent EP 685,331 A1, (1995).

18. Mannar, S.M. - “Synthetic Paper and a Process for Making It”, Patente EP 605,938 A1 940,713, (1993).

19. Squier, J.A.H.; Osgood JR, R.W.; Perez, K.B.; Williams, D.R. - “Thermoplastic Film Label Composite with a Printable, Untreated, Cavitated Surface”, Patent US 6,787,217, (2004).

20. Ravazi, R.F. - “Estudo de Aditivação, Composição e Processamento de Resíduos Plásticos Rígidos Pós-Consumo para a Fabricação de Papel Sintético”, Master Dissertation, PPG-CEM/UFSCar, Brazil, (2002).
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