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Licensed Unlicensed Requires Authentication Published by De Gruyter November 3, 2015

Synthesis and Evaluation of Amides as Slip Additives in Polypropylene

  • F. Coelho , L. F. Vieira , R. Benavides , M. Marques da Silva Paula , A. M. Bernardin , R. F. Magnago and L. da Silva


In this study, we describe the synthesis of amides and evaluate their use as slip additive agents in polypropylene films. The additives N-isopropyl-stearamide and N,N-diisopropyl-stearamide were synthesized and characterized and then used to prepare masterbatches. Erucamide, a commercial masterbatch, was used as the reference standard. A 32 factorial experimental design was used to create the different compositions of slip additives in polymer films. The films were processed via flat-die extrusion and stored in an oven at a constant temperature of 40 °C for seven days. The following are the properties evaluated in the study: thermal decomposition temperature, fusion temperature, fusion enthalpy, coefficient of friction, surface energy, contact angle, and seal initiation temperature. The results were evaluated by analysis of variance (ANOVA) at a 90 % confidence interval. The analysis of the results showed that N-isopropyl stearamide and N,N-diisopropyl stearamide do not provide an adequate surface slip for polypropylene films at the conditions used in the study. In turn, at the same conditions, erucamide, the commercial amide, also does not provide the required surface energy for printing and lamination processes required for polypropylene films.

* Mail address: Luciano da Silva, Laboratório de Pesquisa em Materiais LAPEM – Universidade do Extremo Sul Catarinense, 88806 – 000, Criciúma, Brazil, E-mail:


Cáceres, C. A., Mazzola, N., França, M. S. and Canevarolo, V., “Correlation between Thermal Behavior of a Sealant and Heat Sealing of Polyolefin Films”, Polym. Test., 31, 870875 (2012) 10.1016/j.polymertesting.2012.06.013Search in Google Scholar

Drobny, J. G.: Handbook of Thermoplastic Elastomers, William Andrew, New York, p. 28 (2007)10.1016/B978-081551549-4.50014-1Search in Google Scholar

Fabris, S., Freire, M. T. and Reyes, F. G. R., “Embalagens Plásticas: Tipos de Materiais, Contaminação de Alimentos e Aspectos de Legislação”, Rev. Bras. Toxicol., 19, 5970 (2006)Search in Google Scholar

Fegley, B.: Practical Chemical Thermodynamics for Geoscientists, 1st Edition, Elsevier, Amsterdam (2013)Search in Google Scholar

Fink, J. K.: A Concise Introduction to Additives for Thermoplastic Polymers, 1st Edition, Wiley, Salem, MA (2010)Search in Google Scholar

Garrido, I. Q., Rienda, J. M. B., Perena, J. M. and Frutos, G., “Solubility of Erucamide (13- cis-docosenamide) in Isotactic Poly(propylene) and Thermal Behaviour of their Blends”, Polymer, 38, (20), 51255135 (1997) 10.1016/S0032-3861(97)0058X-4Search in Google Scholar

Garrido, I. Q., Ruiz, M. and Rienda, J. M. R., “Fickian Diffusion of Erucamide (13-cis-docosenamide) in Poly(laurolactam) (Nylon 12) (PA-12)”, Macromol. Chem. Phys., 201, 375381 (2000) 10.1002/(SICI)1521-3935(20000201)201:3<375::AID-MACP375>3.0.CO;2-1Search in Google Scholar

Lahti, J., Tuominen, M.: The Effects of Corona and Flame Treatment: Part 1. PE-LD Coated Packaging Board, Institute of Paper Converting, Tampere, 116 (2007)Search in Google Scholar

Lazic, V. L., Budinski-Simendic, J., Gvozdenovic, J. J. and Simendic, B., “Barrier Properties of Coated and Laminated Polyolefin Films for Food Packaging”, Acta Physica Polonica A, 117, 855858 (2010)10.12693/APhysPolA.117.855Search in Google Scholar

Llop, C., Manrique, A., Navarro, R., Mijangos, C. and Reinecke, H., “Control of the Migration Behaviour of Slip Agents in Polyolefin-Based Films”, Polym. Eng. Sci., 51 (2011) 10.1002/pen.21963.Search in Google Scholar

Mansha, M., Gauthiera, C. and Schirrera, R., “The Effect of Plasticization by Fatty Acid Amides on the Scratch Resistance of PMMA”, Wear, 271, 671679 (2011)10.1016/j.wear.2010.12.089Search in Google Scholar

Mazzola, N. C., Cáceres, C., França, M. P. and Canevarolo, S. V., “Controlling In-Line the Energy Level Applied during the Corona Treatment”, Polym. Test., 31, 505511 (2012) 10.1016/j.polymertesting.2012.02.002Search in Google Scholar

Mesquita, F. A., Martinelli, A. B. and BraskemS. A., BR Patent WO2012088567 A1 (2010)Search in Google Scholar

Neto, B. B., Scarmínio, I. S. and Bruns, E. R.: Pesquisa e Desenvolvimento na Ciência e na Industria, 2st Edition, Unicamp, Campinas (2001)Search in Google Scholar

Peloso, C. W., O'Connor, M. J., Bigger, S. W. and Scheirs, J., “Characterising the Degradation of the Polymer Slip Additive Erucamide in the Presence of Inorganic Antiblock Agents”, Polym. Degrad. Stab., 62, 285290 (1998) 10.1016/S0141-3910(98)00009-3Search in Google Scholar

Poisson, C., Hervais, V., Lacrampe, M. F., Krawczak, M. F., Falher, T., Gondard, C. and Ferreiro, V., “Optimization of Polyethylene/Binder/Polyamide Extrusion Blow-Molded Films. III. Slippability Improvement with Fatty Acid Amides”, J. Appl. Polym. Sci., 115. 23322345 (2009) 10.1002/app.30110Search in Google Scholar

Ramirez, M. X., Walters, K. B., Hirt, D. E., “Relationship between erucamide surface concentration and coefficient of friction of LLDPE film”, J. Vinyl. Addit. Techn., 11, 912 (2005) 10.1002/vnl.20031Search in Google Scholar

Rawls, A. S., Hirt, D. E., “Evaluation of Surface Concentration of Erucamide in LLDPE Films”, J. Vinyl Add. Tech., 8, 130138 (2002) 10.1002/vnl.10353Search in Google Scholar

Sellin, N., Campos, J. S., “Surface Composition Analysis of PP Films Treated by Corona Discharge”, Mater. Res., 6, 163166 (2003) 10.1590/S1516-14392003000200009Search in Google Scholar

Schumann, B., Wooster, J. and Murray, S.: Efeito da Tensão de Embobinamento e da Temperatura de Fusão sobre o Coeficiente de Atrito de um Filme de Polietileno, 1st Edition, PE News América Latina, Sâo Paulo (2000)Search in Google Scholar

Strobel, M., Jones, V., Lyons, C. S., Ulsh, M., Kushner, M. J., Dorai, R. and Branch, M. C., “A Comparison of Corona-Treated and Flame-Treated Polypropylene Films”, Plasmas Polym., 8, 6195 (2003) 10.1023/A:1022817909276Search in Google Scholar

Sun, C., Zang, D. and Wadsworth, L., “Corona Treatment of Polyolefin Films – A Review”, Adv. Polym. Technol., 18, 2, 171180 (1999) 10.1002/(SICI)1098-2329(199922)18:2<171::AID-ADV6>3.0.CO;2-8Search in Google Scholar

Velasco-Ruiz, M. F., Quijada-Garrido, I., Benavente, R. and Barrales-Rienda, J. M., “Miscibility Studies of Erucamide (13-cis-docosenamide)/Poly(laurolactam) (Nylon 12) (PA-12) Blends”, Polymer, 41, 58195828 (2000) 10.1016/S0032-3861(99)00769-7Search in Google Scholar

Wakabayashi, M., Kohno, T., Kimura, T., “New Bleeding Model of Additives in a Polypropylene Film under Atmospheric Pressure”, J. Appl. Polym. Sci., 104, 37513757 (2007) 10.1002/app.25922Search in Google Scholar

Received: 2015-03-09
Accepted: 2015-08-25
Published Online: 2015-11-03
Published in Print: 2015-11-30

© 2015, Carl Hanser Verlag, Munich

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