The effect of TiO2/aluminosilicate nanocomposite additives on the mechanical and thermal properties of polyacrylic coatings

Nosrati, Rahimeh; Olad, Ali

doi:10.1016/j.apsusc.2015.09.019

Cited by 13 publications

(4 citation statements)

References 42 publications

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“…The incorporation of additives makes the polymer suitable for multiple applications in automobile, packaging, construction, electronics, and so on. Additives change the physical, chemical, thermal, optical, and electrical properties of a polymer 6 . Different additives that have been used in polymers for the last few decades are flame retardants, heat stabilizers, UV stabilizers, antioxidants, pigments, plasticizers, and surfactants 7 .…”

Section: Introductionmentioning

confidence: 99%

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Rawat

Ahuja

2020

J of Applied Polymer Sci

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The use of plasticizer has been extensively studied for enhancing the flexibility, processability, solubility, and vapor permeability of polymeric materials. However, its use in enhancing drying of polymeric coatings has been scarcely studied. In the present work, the optimization of plasticizer loading for drying characteristics and residual solvent minimization in polystyrene‐p‐xylene polymeric coatings has been investigated. Coatings were prepared by solution casting technique at various triphenyl phosphate (TPP) loadings from 0 to 7.50 wt% for two cases of initial solution volumes of 75 and 125 μl. For these two cases, respectively, the minimum residual solvent values of 0.02% and 1.61% were obtained, both at 2.50 wt% TPP loading. However, the two cases exhibited residual solvent values of 2.32% and 4.45% at 0 wt% TPP. Further, the SEM results also showed that at 2.50 wt% TPP loading, the coatings developed a dense, smooth and defect‐free morphology attributed to their minimized residual solvent content. The coatings, however, had a porous and phase‐separated morphology originally at 0 wt% TPP. The variation of residual solvent, coating thickness and drying rate with plasticizer loading followed the same behavior for different initial solution volumes. All these parameters attained their peak values consistently at 2.50 wt% TPP. The study is first of its kind to indicate massive reduction in residual solvent attributed to the addition of a nonvolatile plasticizer. TPP also imparts flame retardance to inherently inflammable polystyrene thereby facilitating its implementation in electronic devices. The obtained coatings have possible applications in electronics, electro‐optics, and food packaging.

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Section: Introductionmentioning

confidence: 99%

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Rawat

Ahuja

2020

J of Applied Polymer Sci

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“…Compared to S1, S1−TiO 2 displayed a lower T g , which can be explained by the interaction between TiO 2 and the carboxyl groups of the acrylic acid and leads to an increased polymer chain mobility probably due to intercalation of TiO 2 , which agrees with previous examples of TiO 2 -modified polyacrylic acid. 50 The same explanation can be considered for the S2 and S2−TiO 2 T g modification, while for S3 and S3−TiO 2 , due to the lack of acrylic acid component, minimal modification of T g was observed. In the case of S4 and S4−TiO 2, a slight decrease of T g was also observed.…”

Section: ■ Introductionmentioning

confidence: 87%

Design and Application of Photocrosslinkable Hydrogel Films for Fast and Efficient Decontamination of Chemical Warfare Agents

Toader

Ginghină²,

Diacon

et al. 2022

ACS Appl. Polym. Mater.

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This paper describes the design of photocrosslinkable interpenetrated network hydrogel peelable films, presenting the remarkable ability to successfully neutralize and safely remove from contaminated surfaces two of the most notorious highly toxic real chemical warfare agents (CWAs)�the blistering agent mustard gas (HD) and the nerve agent soman (GD). The goal of this study was to develop an innovative method for CWA decontamination that allows fast and efficient remediation of CWA-affected sites by entrapping the toxic compounds inside the polymeric matrix of the hydrogel, along with their efficient degradation using a dual route�hydrolytic and photocatalytic. With this aim, eight different formulations were developed for CWA decontamination involving aqueous blends containing the watersoluble components: a polymer (polyvinyl alcohol), monomers (acrylamide, acrylic acid, and/or 2-hydroxypropyl methacrylate in different molar ratios), a crosslinker (N,N′-methylenebisacrylamide), and a photoinitiator [2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiphenone]. Also, in four of these decontamination solutions, titanium dioxide nanoparticles were incorporated to investigate if their photoactive potential can enhance the CWA decontamination process. The outstanding ability of these materials to neutralize CWA, as well as their suitability for decontamination purposes, was demonstrated through a variety of analytical tools (scanning electron microscopy, micro-CT, Fourier transform infrared spectroscopy, thermogravimetric analysis, dynamic mechanical analysis, and shear, tensile, and compression tests), swelling investigations, and gas chromatography−mass spectrometry surveyed decontamination tests on two real warfare agents (HD and GD) and one chemical warfare simulant (dimethyl methylphosphonate, a simulant for G series nerve agents). After peeling the hydrogels from the contaminated surfaces, the decontamination efficiency was calculated, and the values obtained varied from 99.35 to 99.98%.

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“…One of the major advantages of these nanocomposites is the barrier effect, 9,10 together with the increment of the physical and mechanical resistance, biodegradable capacities and protection against corrosion. 11,12 Due to all these advancements, the application of nanoclays has increased signicantly, along with the interest in the analysis of their structure and their interaction with polymers. 7 Their analysis by SP-ICP-MS, however, may pose relevant limitations because of their dimensions in the micrometre range.…”

Section: Introductionmentioning

confidence: 99%

Exploring the boundaries in the analysis of large particles by single particle inductively coupled plasma mass spectrometry: application to nanoclays

Ojeda

Bolea

Pérez-Arantegui

et al. 2022

J. Anal. At. Spectrom.

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The effect of TiO2/aluminosilicate nanocomposite additives on the mechanical and thermal properties of polyacrylic coatings

Cited by 13 publications

References 42 publications

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Design and Application of Photocrosslinkable Hydrogel Films for Fast and Efficient Decontamination of Chemical Warfare Agents

Exploring the boundaries in the analysis of large particles by single particle inductively coupled plasma mass spectrometry: application to nanoclays

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