Bio-mimicking hybrid polymer architectures as adhesion promoters for low and high surface energy substrates

Baby, Monisha; Periya, Vijayalakshmi K.; Soundiraraju, Bhuvaneshwari; Balachandran, Nisha; Cheriyan, Suchithra; Sankaranarayanan, Santhosh Kumar Kalamblayil

doi:10.1016/j.jiec.2021.05.004

Cited by 8 publications

(4 citation statements)

References 55 publications

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“…The negative value obtained for Ssk, i.e. -4.9, indicated the predominance of deep valleys rather than peaks, with the presence of some scratches on the surface [35]. For the Sku parameter, the sample presented a value of 193.9.…”

Section: Discussionmentioning

confidence: 85%

Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties

Melendez-Rodriguez,

Prieto,

Pardo-Figuerez

et al. 2024

Preprint

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In the present study, a multilayer high barrier thin blown film based on a polybutylene adipate terephthalate (PBAT) blend with polyhydroxyalkanoate (PHA), and composed of four layers, including a cellulose nanocrystals (CNC) barrier layer and an electrospun poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) hot-tack layer, was characterized in terms of surface roughness, surface tension, migration, mechanical and peel performance, barrier properties and disintegration rate. The results showed a material with a smooth surface. The overall migration test showed that the material was suitable for its use as a food contact layer. The addition of the CNC interlayer had a significant effect on the mechanical properties of the system, drastically reducing the elongation at break and, thus, the flexibility of the material. However, the material retained its elastic modulus and tensile strength. The CNC coating had a negative impact on the peeling strength, weakening the inherently strong interlayer adhesivity of the electrospun PHBV fibers. The multilayer had a good barrier to water vapor, and especially to oxygen, with its permeance reduced by up to a 90 % when the CNC layer was present. Finally, the monolayer blend film disintegrated in a period of less than 55 days in a laboratory-scale composting experiment, while the multilayer system disintegrated in 60 days. Overall, the multilayer system formed a fully compostable structure with great potential for use in food packaging applications.

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Section: Discussionmentioning

confidence: 85%

Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties

Melendez-Rodriguez,

Prieto,

Pardo-Figuerez

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Factors like the interfacial corrosion or low surface energy have the potential to restrict the widespread application of protective coatings, particularly in the context of elastomeric coatings on rigid substrates. [32,33] Nevertheless, durability and corrosion protection of coating were often neglected in the pursuit of adhesion enhancement, as the interfacial corrosion will result in rapid delamination of the coating, even the coating initially exhibits commendable interfacial adhesion within metal-polymer systems. [34] Recently, Zhang et al designed rigid microshells and releasable nano-seeds as a bridge between rigid shielding and chemical bonding, taking into account the adhesion and corrosion resistance of the coating interfaces, thus providing high versatility and durability.…”

Section: Introductionmentioning

confidence: 99%

Bio‐Inspired Interlocking Structures for Enhancing Flexible Coatings Adhesion

Lu,

Li,

et al. 2024

Small

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The flexible protective coatings and substrates frequently exhibit unstable bonding in industrial applications. For strong interfacial adhesion of heterogeneous materials and long‐lasting adhesion of flexible protective coatings even in harsh corrosive environments. Inspired by the interdigitated structures in Phloeodes diabolicus elytra, a straightforward magnetic molding technique is employed to create an interlocking microarray for reinforced heterogeneous assembly. Benefiting from this bio‐inspired microarrays, the interlocking polydimethylsiloxane (PDMS) coating recorded a 270% improvement in tensile adhesion and a 520% increase in shear resistance, approaching the tensile limitation of PDMS. The elastic polyurethane‐polyamide (PUPI) coating equipped with interlocking structures demonstrated a robust adhesion strength exceeding 10.8 MPa and is nearly unaffected by the corrosion immersion. In sharp contrast, its unmodified counterpart exhibited low initial adhesion and maintain ≈20% of its adhesion strength after 30 d of immersion. PUPI coating integrated with microarrays exhibits superior resistance to corrosion (30 d, |Z|0.01HZ ≈1010 Ω cm2, Rct≈108 Ω cm2), cavitation and long‐term adhesion retention. These interlocking designs can also be adapted to curved surfaces by 3D printing and enhances heterogeneous assembly of non‐bonded materials like polyvinylidene fluoride (PTFE) and PDMS. This bio‐inspired interlocking structures offers a solution for durably bonding incompatible interfaces across varied engineering applications.

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“…These materials exhibit exceptional properties in terms of chemical inertness, durability, and photodegradation resistance [ 195 , 196 , 197 , 198 , 199 ]. Because of the low surface energy, fluoropolymers have extremely poor adhesion to almost all materials, that makes it difficult to use them as composite matrices [ 200 , 201 ]. Fluorinated silanes could be used to improve the mutual adhesion of components in such systems; however, in a recent work by Krapivko et al showed that this approach may not be sufficient for perfluorinated materials such as polyhexafluoropropylene (PHFP) [ 202 ].…”

Section: Tuning the Properties Of Composites Through The Introduction...mentioning

confidence: 99%

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

2022

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Polymers are widely used in many areas, but often their individual properties are not sufficient for use in certain applications. One of the solutions is the creation of polymer-based composites and nanocomposites. In such materials, in order to improve their properties, nanoscale particles (at least in one dimension) are dispersed in the polymer matrix. These properties include increased mechanical strength and durability, the ability to create a developed inner surface, adjustable thermal and electrical conductivity, and many others. The materials created can have a wide range of applications, such as biomimetic materials and technologies, smart materials, renewable energy sources, packaging, etc. This article reviews the usage of composites as a matrix for the optical sensors and biosensors. It highlights several methods that have been used to enhance performance and properties by optimizing the filler. It shows the main methods of combining indicator dyes with the material of the sensor matrix. Furthermore, the role of co-fillers or a hybrid filler in a polymer composite system is discussed, revealing the great potential and prospect of such matrixes in the field of fine properties tuning for advanced applications.

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Bio-mimicking hybrid polymer architectures as adhesion promoters for low and high surface energy substrates

Cited by 8 publications

References 55 publications

Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties

Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties

Bio‐Inspired Interlocking Structures for Enhancing Flexible Coatings Adhesion

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

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