Role of a micro-patterned adhesive interface on the performance of thermoformable multi-layered decorative polymeric film laminates

Balamurugan, Ganesh; Pukadyil, Rohan N.; Nielsen, Kent E.; Brandys, Frank A.; Thompson, Michael R.

doi:10.1016/j.ijadhadh.2013.02.012

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…The results of water contact angle measurement in table 2 fully supported above reason, where the water contact angle decreases from TPU-Low to TPU-High. In terms of adhesion, the smaller contact angles indicated that the solid surfaces were more hydrophilic and thus more compatible with the adhesive [29]. Thus, better wetting seems to be a reasonable explanation for the trend in TR.…”

Section: Stress Tr Through the Adhesive Layermentioning

confidence: 91%

Recovery behaviour of shape memory polyurethane based laminates after thermoforming

Balamurugan

et al. 2017

Smart Mater. Struct.

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Shape memory polymers (SMPs) can be used to produce a new class of decorative films capable of improved formability and shape recovery in polymer laminates, which are increasingly being used for automotive, aerospace, construction and commercial applications. As a relatively new field there is little knowledge on the shape recovery behaviour of laminates with a SMP film and few methods of quantify that behaviour. The influences of different variables that affect the recovery behaviour of thermoplastic shape memory polyurethanes based laminates including ambient temperature (45 °C and 65 °C), material modulus, and adhesive strength were investigated after thermoforming, through both experimental and modelling methods. The empirical model assisted in identifying the contributions of the adhesive to transfer stresses, which dampened the recovery of the laminate with lower shear strength adhesives. Increasing ambient temperature and the film modulus increased both the final angle recovery ratios and recovery rates.

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Section: Stress Tr Through the Adhesive Layermentioning

confidence: 91%

Recovery behaviour of shape memory polyurethane based laminates after thermoforming

Balamurugan

et al. 2017

Smart Mater. Struct.

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“…Copious research has focused on the development of a multilayer peelable lidding film. − Nevertheless, multilayer films are difficult to recycle because each film layer may contain a wide range of materials and polymers with variable properties. As a result, developing recyclable monomaterial plastic films and plastic trays is a challenge.…”

Section: Introductionmentioning

confidence: 99%

Microfabrication of Thermoplastic Polypropylene Surface Structures via Thermal Imprinting for Controlling the Adhesion of Easy Peel Package

Winotapun,

Makmoon,

Aumnate

et al. 2023

ACS Omega

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Micropatterns were fabricated on polypropylene (PP) surfaces using the hot embossing technique with various temperatures ranging from 160 to 175 °C and applying force conditions from 100 to 300 N. To evaluate the replication quality, an effective filling ratio of 1 indicates that the volume of the formed pattern is similar to the mold cavity volume. From the results, the filling ratio increased with increasing the embossing temperature. For instance, under a constant force of 100 N, the filling ratio of polypropylene (PP) with small square arrays (pattern SS) increased from 0.08 to 0.41 when the embossing temperature was raised from 160 to 175 °C, respectively. With the increase of applied force, the filling ratio also increased. At an imprinting temperature of 175 °C and an applied force of 300 N, the highest effective filling ratio that was achieved was approximately 0.99. Furthermore, the effect of PP with different melt flow indexes (MFIs) on the filling ratio was investigated. For food packaging applications, a micropatterned PP sheet was heat-sealed with a biaxially oriented polypropylene (BOPP) film. The micropatterned PP sheet demonstrated easy-opening properties by varying sealing contact areas and micropattern geometries between the sheet and the BOPP film. All micropatterned PP sheets with an MFI of 25 g/10 min exhibited an easy peel property with adhesive failure characteristics at a heat-sealing temperature of 150 °C and a dwell time of 3 s. There was no residue on the PP substrate surface. The overall findings are beneficial in understanding the hot embossing technology for fabricating micropatterns on polymer surfaces, and it can be applied in an easy peel property for packaging applications.

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“…These channels had rectangular cross-section and their internal surfaces were textured with microscopic pillars arranged in regular arrays. Balamurugan et al [11] produced four different micro-patterns onto polycarbonate films using a micro-structured molding tool. The results indicated that a suitably complex micro-pattern with sufficient void spaces had the capability of increasing adhesion strength.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of adhesion strength by micro-rolling-based surface texturing

Fan

et al. 2015

Int J Adv Manuf Technol

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Structural adhesive bonding technology is widely utilized in various applications in modern automotive and aviation industries. Finding new techniques to enhance adhesion strength between bonded components in a more economical and environmental-friendly way is becoming an important issue. In this paper, a novel micro-surface texturing method by using a developed deformation-based micro-rolling system has been applied to modify surface conditions of a sheet metal in order to increase metal-to-metal adhesion strength. Additionally, different surface texturing patterns, such as microchannel arrays and grid pattern, are produced by single-pass or two-pass micro-rolling strategies. The effect of these texture patterns on adhesion strength is studied through single-lapjoint shear strength test. Results indicate that surface with micro-textures are able to achieve noticeable improvement in adhesion strength.

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Role of a micro-patterned adhesive interface on the performance of thermoformable multi-layered decorative polymeric film laminates

Cited by 5 publications

References 17 publications

Recovery behaviour of shape memory polyurethane based laminates after thermoforming

Recovery behaviour of shape memory polyurethane based laminates after thermoforming

Microfabrication of Thermoplastic Polypropylene Surface Structures via Thermal Imprinting for Controlling the Adhesion of Easy Peel Package

Enhancement of adhesion strength by micro-rolling-based surface texturing

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