Effect of Surfactant Type and Concentration on Surfactant Migration, Surface Tension, and Adhesion of Latex Films

Shirakbari, N; Ebrahimi, Mojtaba; Salehi‐Mobarakeh, Hamid; Khorasani, Manouchehr

doi:10.1080/00222348.2014.901876

Cited by 25 publications

(19 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Figure 5, 440 nm is indeed the distance between centroids above which the SBA particles do not move during water evaporation. This seems to be in agreement with the work from Shirakbari et al (2014) who showed that the use of both anionic and nonanionic surfactants could decrease the migration of the anionic molecules.…”

Section: Role Of the Surfactants On The Latex Film Formationsupporting

confidence: 93%

Study of the surfactant role in latex–aerogel systems by scanning transmission electron microscopy on aqueous suspensions

Perret

Foray

Masenelli‐Varlot

et al. 2017

Journal of Microscopy

View full text Add to dashboard Cite

SummaryFor insulation applications, boards thinner than 2 cm are under design with specific thermal conductivities lower than 15 mW m −1 K −1 . This requires binding slightly hydrophobic aerogels which are highly nanoporous granular materials. To reach this step and ensure insulation board durability at the building scale, it is compulsory to design, characterise and analyse the microstructure at the nanoscale. It is indeed necessary to understand how the solid material is formed from a liquid suspension. This issue is addressed in this paper through wet-STEM experiments carried out in an Environmental Scanning Electron Microscope (ESEM). Latex-surfactant binary blends and latex-surfactant-aerogel ternary systems are studied, with two different surfactants of very different chemical structures. Image analysis is used to distinguish the different components and get quantitative morphological parameters which describe the sample architecture. The evolution of such morphological parameters during water evaporation permits a good understanding of the role of the surfactant.

show abstract

Section: Role Of the Surfactants On The Latex Film Formationsupporting

confidence: 93%

Study of the surfactant role in latex–aerogel systems by scanning transmission electron microscopy on aqueous suspensions

Perret

Foray

Masenelli‐Varlot

et al. 2017

Journal of Microscopy

View full text Add to dashboard Cite

show abstract

“…On the one hand, copolymerization of a polar monomer such as AA is known to improve these hydrophilic interactions by providing sites that form H-bonds with the OH groups on the surface of stainless steel substrates (Chan and Howard 1978). On the other hand, it has been shown that SDS molecules tend to migrate to the surface of an adhesive layer during the drying process, forming a weak boundary layer which negatively affects the adhesion (Zosel and Schuler 1999;Shirakbari et al 2014). Therefore, it appears that the increased surface accumulation of SDS has negatively affected tack and peel strength and has been more detrimental at higher AA content where stronger interfacial interactions were disrupted.…”

Section: Psa Propertiesmentioning

confidence: 99%

A sequential design approach for in situ incorporation of cellulose nanocrystals in emulsion-based pressure sensitive adhesives

et al. 2020

View full text Add to dashboard Cite

Cellulose nanocrystals (CNCs) are naturally-sourced nanoparticles that can be used to modify polymers and provide exceptional mechanical properties to nanocomposite materials. In this study, CNCs were incorporated into water-based pressure sensitive adhesives (PSAs) via in situ semi-batch emulsion polymerization to improve PSA properties. A sequential design approach was used to improve CNC/ poly(n-butyl acrylate/vinyl acetate) nanocomposite PSAs. In the first part of the design, the effects of acrylic acid (AA) and anionic surfactant sodium dodecyl sulfate (SDS) were examined in the presence of 0.5 wt% CNCs (based on polymer mass). While the SDS was crucial to maintaining latex stability, its excessive addition led to a decrease in PSA performance, namely tack and peel strength. The AA comonomer was pivotal in improving the shear strength of the PSAs, especially in the presence of CNCs. In all cases, the addition of CNCs led to improved PSA shear strength. In the second part of the design, the addition of 1-dodecanethiol (NDM) as a chain transfer agent (CTA) with CNC levels up to 1 wt% led to an improvement in tack and peel strength but at the cost of diminishing the shear strength. Generally, the addition of CNCs improved PSA performance. Thus, to maximize the impact of CNCs on PSA properties, a careful balance of SDS (for latex stability), AA (to improve shear strength) and NDM (to improve tack and peel strength) are needed.

show abstract

“…This makes unwanted migration of one of the reaction components in the final product less likely and therefore guarantees improved durability of the products properties. [51][52][53][54] Additionally, the hydrophilic stabilizing block yields surface functionality to the nanoparticles without the need of further functionalization steps, which is hardly achievable in a conventional free radical emulsion polymerization.…”

Section: Aqueous Dispersions Of the Papy-b-ps Latexesmentioning

confidence: 99%

An eco-friendly pathway to thermosensitive micellar nanoobjects via photoRAFT PISA: the full guide to poly(N-acryloylpyrrolidin)-block-polystyrene diblock copolymers

Lauterbach

Abetz

2020

Soft Matter

View full text Add to dashboard Cite

show abstract

Effect of Surfactant Type and Concentration on Surfactant Migration, Surface Tension, and Adhesion of Latex Films

Cited by 25 publications

References 12 publications

Study of the surfactant role in latex–aerogel systems by scanning transmission electron microscopy on aqueous suspensions

Study of the surfactant role in latex–aerogel systems by scanning transmission electron microscopy on aqueous suspensions

A sequential design approach for in situ incorporation of cellulose nanocrystals in emulsion-based pressure sensitive adhesives

An eco-friendly pathway to thermosensitive micellar nanoobjects via photoRAFT PISA: the full guide to poly(N-acryloylpyrrolidin)-block-polystyrene diblock copolymers

Contact Info

Product

Resources

About