Protective films on complex substrates of thermoplastic and cellular elastomers: Prospective applications to rubber, nylon and cork

Martínez-Martínez, D.; Tiss, B.; Glanzmann, L.N.; Wolthuizen, D.J.; Cunha, L.; Mansilla, C.; Hosson, J.T.M. de

doi:10.1016/j.surfcoat.2022.128405

Cited by 7 publications

(6 citation statements)

References 38 publications

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“…[6,[97][98][99][100]. Furthermore, there were coatings recently reported for elastomeric substrates via atomic layer deposition with TiO 2 and diamond-like carbon (DLC) films [101].…”

Section: Future Perspectivesmentioning

confidence: 99%

A Comprehensive Outlook of Scope within Exterior Automotive Plastic Substrates and Its Coatings

Thomas,

Patil,

John

et al. 2023

Coatings

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Among non-metal substrate coatings, plastic substrates have certainly asserted themselves as a key market, especially in the automotive industry. The substrates within exterior automotive industries are being diversified and commercialized at a rapid pace. Mainly attributed to the emergence of electric vehicles, environmental regulations, and functional requirements, there is huge scope and many opportunities for advancements and groundbreaking technologies. The above factors have led to the dawn of new and improved coating materials within the revolutionizing new substrate market. At the same time, new product innovations within ultraviolet (UV)-curable technologies, powder coating, nanotechnologies, and several other platforms have brought the possibility of novel coating systems into the picture. This review outlines the inherent challenges, the progress made thus far, and the future opportunities of two significant exterior plastic substrates: thermoplastic polyolefin (TPO) and polycarbonate (PC). While the former serves as the historical choice for plastic bumpers across the globe, the latter has captured the most research attention in recent times as a lightweight option against glass coatings. A meticulous overview of the existing literature was conducted to summarize the recent approaches with a few critical analyses. To surpass the challenges to the equivalent performances, a few of the most promising research studies were also examined, including the sustainability aspect.

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“…[6,[97][98][99][100]. Furthermore, there were coatings recently reported for elastomeric substrates via atomic layer deposition with TiO 2 and diamond-like carbon (DLC) films [101].…”

Section: Future Perspectivesmentioning

confidence: 99%

A Comprehensive Outlook of Scope within Exterior Automotive Plastic Substrates and Its Coatings

Thomas,

Patil,

John

et al. 2023

Coatings

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“…The duty cycle is used to manage the percentage deposition of silver particles as a function of deposition time. The 70% duty cycle oscillates (+), and 30% negative (-) DDP, and the DDP is used to avoid charge accumulation on the sample surface during the deposition process [18]. Figure 6 shows when the deposition rate decreases after 20 s. After this time, the power supply changes the DDP to neutralize the selective ion charge, promoting a surface ion cleaning and a freeway pass for ions to achieve substrates surface, keeping the deposition process [18][19][20].…”

Section: Deposition Ratementioning

confidence: 99%

Sputtering of micro-carbon-silver film (μC-Ag) for endotracheal tubes to mitigate respiratory infections

Silva

Manfroi²,

Tavares³

et al. 2023

Biomed. Mater.

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Polyurethane (PU) substrates are biocompatible materials widely used to manufacture endotracheal tubes. However, in common with other biomedical materials, they are liable to the formation of microbial films. The occurrence of pneumonia in intubated patients treated at intensive care units (ICUs) often takes the form of ventilator-associated pneumonia (VAP). The issue relates to the translocation of pathogenic microorganisms that colonize the oropharyngeal mucosa, dental plaque, stomach, and sinuses. New protective materials can provide a more effective therapeutic approach to mitigating bacterial films. This work concerns microcrystalline carbon film containing dispersed silver nanoparticles (μC-Ag) deposited on PU substrates using a physical vapor deposition (PVD) sputtering process. For the first time, carbon paper was used to produce a carbon target with holes exposing a silver disk positioned under the carbon paper, forming a single target for use in the sputtering system. The silver nanoparticles were well distributed in the carbon film. The adherence characteristics of the μC-Ag film were evaluated using a tape test technique, and EDX mapping was performed to analyze the residual particles after the tape test. The microbicidal effect of the thin film was also investigated using species S. aureus, a pathogenic microorganism responsible for most infections of the lower respiratory tract involving ventilator-associated pneumonia (VAP) and ventilator-associated tracheobronchitis (VAT). The results demonstrated that μC-Ag films on PU substrates are promising materials for mitigating pathogenic microorganisms on endotracheal tubes.

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“…The use of some natural fibers and particles in elastomers and thermoplastic matrix systems has been successfully reported. − There have been several reports where wood fibers have been combined with thermoplastic or thermoset polymer matrices to enhance mechanical properties, including stiffness and impact strength. − Several other natural materials, including sisal, jute, coconuts, and flax, have also been used as low-cost reinforcements for polymers. , Cork is an engineered natural material that has distinctive properties including very low density (∼0.22–0.28 g cm –3 ), fire resistance characteristics, low thermal conductivity, and elastic properties. , The unique microporous nature of cork allows outstanding absorption of sound energy and enhances vibration-dampening properties. , They are also abundant and inexpensive. Therefore, the incorporation of cork into a polymer has the potential to result in a very lightweight composite material that has improved acoustic, thermal, mechanical, and dynamic mechanical properties. , Consequently, cork–polymer composites (CPCs) have recently been recognized as a successful strategy for creating sustainable products. There have been reports of CPCs made from several commercially available synthetic polymers, including low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene, and poly(-caprolactone) .…”

Section: Introductionmentioning

confidence: 99%

“…14,15 The unique microporous nature of cork allows outstanding absorption of sound energy and enhances vibration-dampening properties. 16,17 They are also abundant and inexpensive. Therefore, the incorporation of cork into a polymer has the potential to result in a very lightweight composite material that has improved acoustic, thermal, mechanical, and dynamic mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Role of Compatibilizers in Modulating the Interfacial Phenomena and Improving the Properties of Cork–Nylon Composites

Alghamdi,

Balu,

Vongsvivut

et al. 2023

ACS Appl. Polym. Mater.

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The nature and the quality of the interfacial interaction and adhesion play a critical role in determining the physical characteristics and mechanical properties of all blends, composites, and nanocomposites. Herein, we examined the roles of functional compatibilizers of different natures and compositions that influenced the processing, interfacial interaction, bulk morphology, and final properties of Nylon-12/cork composites. In this study, Nylon-12 was melt-mixed with cork at 190 °C in an internal laboratory mixer in various compositions using four different compatibilizers namely, (i) octadecanamide (O), (ii) polyethylene-graft-maleic anhydride (PE-g-MAH), (iii) polypropylene-graft-maleic anhydride (PP-g-MAH), and (iv) 3-aminopropyl triethoxysilane (APTS), to improve the interfacial interaction and thereby their adhesion. To understand the impact of compatibilizers on the mechanical properties, morphological characteristics, and degradation properties, the developed composites were investigated using universal tensile testing (UTS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscope (SEM), and X-ray diffraction (XRD) analysis. In addition, a high-resolution synchrotron macro-attenuated total reflection Fourier transform infrared (macro-ATR-FTIR) microspectroscopy was employed to explore the interfacial characteristics of the composites at the molecular level. The results indicated that cork was more evenly distributed in the Nylon-12 matrix when a small amount of compatibilizer was added to Nylon-12/cork composites. In particular, the mechanical properties of the Nylon-12 composites with APTS were substantially improved when compared with the composites without compatibilizers or with other types of compatibilizers used in this study. Furthermore, the study demonstrated the power of the high-resolution chemical mapping capability offered by the synchrotron macro-ATR-FTIR technique to acquire the spatial distribution and molecular-level information on the interfacial interactions of different components in composites. This fundamental information is pivotal for developing lightweight engineering products using Nylon-12/cork composites.

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Protective films on complex substrates of thermoplastic and cellular elastomers: Prospective applications to rubber, nylon and cork

Cited by 7 publications

References 38 publications

A Comprehensive Outlook of Scope within Exterior Automotive Plastic Substrates and Its Coatings

A Comprehensive Outlook of Scope within Exterior Automotive Plastic Substrates and Its Coatings

Sputtering of micro-carbon-silver film (μC-Ag) for endotracheal tubes to mitigate respiratory infections

Exploring the Role of Compatibilizers in Modulating the Interfacial Phenomena and Improving the Properties of Cork–Nylon Composites

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