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Kanani Aghkand Z, Saffar A, Ajji A. Effect of Back‐layer on seal performance of multilayer polyethylene‐based sealant films. J Appl Polym Sci 2021. [DOI: 10.1002/app.50742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zahra Kanani Aghkand
- 3SPack, CREPEC, Department of Chemical Engineering École Polytechnique de Montréal Montréal Québec Canada
| | - Amir Saffar
- 3SPack, CREPEC, Department of Chemical Engineering École Polytechnique de Montréal Montréal Québec Canada
| | - Abdellah Ajji
- 3SPack, CREPEC, Department of Chemical Engineering École Polytechnique de Montréal Montréal Québec Canada
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Kanani Aghkand Z, Jalali Dil E, Ajji A, Dubois C. Simulation of Heat Transfer in Heat Sealing of Multilayer Polymeric Films: Effect of Process Parameters and Material Properties. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04160] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zahra Kanani Aghkand
- 3SPack, CREPEC, Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Québec H3C 3A7, Canada
| | - Ebrahim Jalali Dil
- 3SPack, CREPEC, Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Québec H3C 3A7, Canada
| | - Abdellah Ajji
- 3SPack, CREPEC, Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Québec H3C 3A7, Canada
| | - Charles Dubois
- 3SPack, CREPEC, Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Québec H3C 3A7, Canada
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Najarzadeh Z, Tabasi RY, Ajji A. Sealability and Seal Characteristics of PE/EVA and PLA/PCL Blends. INT POLYM PROC 2014. [DOI: 10.3139/217.2813] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Seal strength behavior of low density polyethylene and ethylene vinyl acetate copolymer (PE/EVA) blends as well as that of blends of a seal grade PLA with aliphatic polyester (PCL) was studied. Polyethylene is commonly used for seal application in packaging multilayer structures and amorphous PLA is considered to be its counterpart for compostable and/or biodegradables ones. Incorporation of EVA in polyethylene improves its sealability in terms of a decrease in seal initiation temperature and broadness of sealability plateau. This was interpreted as due to the formation of finer crystals, a decrease in the melting point and presence of vinyl acetate polar group. These were supported by results obtained from differential scanning calorimetry (DSC) and Scanning electron microscopy (SEM). For the PLA/PCL system, the dispersed phase was stretched into elongated ellipsoidal domains. This type of morphology affected the mechanical and seal properties of the blends. As a result of blending, both hot-tack initiation temperature and strength as well as seal initiation temperature were enhanced. The enhancement in these seal properties was significant when the concentration of the dispersed phase exceeded 20 wt% in the blend. Hot-tack strength of up to twice of pure PLA was achieved through blending. This was attributed to the lower glass transition temperature of PCL, resulting in enhanced mobility of PLA chains and also the high aspect ratio of the dispersed phase. The maximum obtained hot-tack strength (1 200 g/25 mm) at 40 % dispersed content compared advantageously to commercially available polyolefin based sealant resins. The seal and hot-tack initiation temperatures were shifted to lower temperatures by as much as 30 °C, which can allow faster and more energy efficient sealing process.
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Affiliation(s)
- Z. Najarzadeh
- 3SPack , CREPEC, Département de Génie Chimique École Polytechnique de Montréal, Montréal, Québec , Canada
| | - R. Y. Tabasi
- 3SPack , CREPEC, Département de Génie Chimique École Polytechnique de Montréal, Montréal, Québec , Canada
| | - A. Ajji
- 3SPack , CREPEC, Département de Génie Chimique École Polytechnique de Montréal, Montréal, Québec , Canada
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Jiang G, Wu H, Yan B, Guo S. Effect of a tie film on the enhanced interfacial adhesion between polyethylene and polyamide-6 in a sequential injection molding. POLYM ENG SCI 2010. [DOI: 10.1002/pen.21576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Poisson C, Hervais V, Lacrampe MF, Krawczak P, Falher T, Gondard C, Ferreiro V. Optimization of polyethylene/binder/polyamide extrusion blow-molded films. III. Slippability improvement with fatty acid amides. J Appl Polym Sci 2010. [DOI: 10.1002/app.30110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Su JF, Wang XY, Huang Z, Yuan XY, Li M, Xia WL, Feng CL. Heat-sealing properties of soy protein isolate/poly(vinyl alcohol) blend films: Effect of the heat-sealing temperature. J Appl Polym Sci 2010. [DOI: 10.1002/app.31150] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Manias E, Zhang J, Huh JY, Manokruang K, Songtipya P, Jimenez-Gasco MM. Polyethylene Nanocomposite Heat-Sealants with a Versatile Peelable Character. Macromol Rapid Commun 2008; 30:17-23. [DOI: 10.1002/marc.200800553] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 10/09/2008] [Accepted: 10/09/2008] [Indexed: 11/07/2022]
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Poisson C, Hervais V, Lacrampe MF, Krawczak P. Optimization of PE/binder/PA extrusion blow-molded films. II. Adhesion properties improvement using binder/EVA blends. J Appl Polym Sci 2006. [DOI: 10.1002/app.22407] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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