Polyester-supported Chitosan-Poly(vinylidene fluoride)-Inorganic-Oxide-Nanoparticles Composites with Improved Flame Retardancy and Thermal Stability

Abed, Ahmed; Giraud, Stéphane; Achari, Ahmida El; Campagne, Christine; Thoumire, Olivier; Moznine, Reddad El; Cherkaoui, Omar; Vieillard, Julien; Azzouz, Abdelkrim

doi:10.1007/s10118-020-2336-7

Cited by 11 publications

(6 citation statements)

References 39 publications

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“…This may suggest that, for degradation (via dehydrofluorination) to occur, the hydroxyl groups or other base anions need to be free or solvated. It is interesting to note that, as PVDF exhibits piezoelectric effects in the

and

phases but not in the

phase [ 36 ], this phase inversion can be useful for the formation of piezoelectric materials [ 198 , 277 , 278 ].…”

Section: Pvdf Stabilitymentioning

confidence: 99%

On the Solubility and Stability of Polyvinylidene Fluoride

et al. 2021

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This literature review covers the solubility and processability of fluoropolymer polyvinylidine fluoride (PVDF). Fluoropolymers consist of a carbon backbone chain with multiple connected C–F bonds; they are typically nonreactive and nontoxic and have good thermal stability. Their processing, recycling and reuse are rapidly becoming more important to the circular economy as fluoropolymers find widespread application in diverse sectors including construction, automotive engineering and electronics. The partially fluorinated polymer PVDF is in strong demand in all of these areas; in addition to its desirable inertness, which is typical of most fluoropolymers, it also has a high dielectric constant and can be ferroelectric in some of its crystal phases. However, processing and reusing PVDF is a challenging task, and this is partly due to its limited solubility. This review begins with a discussion on the useful properties and applications of PVDF, followed by a discussion on the known solvents and diluents of PVDF and how it can be formed into membranes. Finally, we explore the limitations of PVDF’s chemical and thermal stability, with a discussion on conditions under which it can degrade. Our aim is to provide a condensed overview that will be of use to both chemists and engineers who need to work with PVDF.

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and

phases but not in the

phase [ 36 ], this phase inversion can be useful for the formation of piezoelectric materials [ 198 , 277 , 278 ].…”

Section: Pvdf Stabilitymentioning

confidence: 99%

On the Solubility and Stability of Polyvinylidene Fluoride

et al. 2021

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“…Chitosan is one of the most widely used biomass-derived polysaccharides from biomass chitin, typically from crustacean shells, which contains a large number of polar groups, such as hydroxyl groups and amino groups, and can be dissolved in an acidic solution. , SA, one of the top-value-added chemicals from biomass-derived sources defined by the U.S. Department of Energy, contains two carboxyl terminals on the molecules and can form a homogeneous aqueous solution with chitosan through the formation of an SA–chitosan organic salt complex via ionic interactions . These biomass-derived SA–chitosan organic salts can be readily used as polymer binders for water-based coatings, and a water-based conductive ink was prepared by directly mixing AgNW aqueous solution with SA–chitosan aqueous solution, as shown in Figure a.…”

Section: Results and Discussionmentioning

confidence: 99%

Biomass-Derived, Highly Conductive Aqueous Inks for Superior Electromagnetic Interference Shielding, Joule Heating, and Strain Sensing

Wang

Zhu

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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Conductive composite inks are widely used in various applications such as flexible electronics. However, grand challenges still remain associated with their relatively low electrical conductivity and require heavy use of organic solvents, which may limit their high performance in broad applications and cause environmental concerns. Here, we report a generalized and eco-friendly strategy to fabricate highly conductive aqueous inks using silver nanowires (AgNWs) and biomass-derived organic salts, including succinic acid–chitosan (SA–chitosan) and sebacic acid–chitosan. SA–chitosan/AgNW composite coatings can be prepared by directly casting conductive aqueous inks on various substrates, followed by subsequently heating for cross-linking. The composite coatings exhibit an ultrahigh electrical conductivity up to 1.4 × 104 S/cm, which are stable after being treated with various organic solvents and/or kept at a high temperature of 150 °C, indicating their high chemical and thermal resistance. The flexibility and performance durability of these composite coatings were demonstrated by a suite of characterization methods, including bending, folding, and adhesion tests. Moreover, a high electromagnetic interference shielding (EMI) effectiveness of 73.3 dB is achieved for SA–chitosan/AgNW composite coatings at a thickness of only 10 μm due to the ultrahigh electrical conductivity. Additionally, we further demonstrated that such conductive composite inks can be used for fabricating functional textiles for a variety of applications with high performance, such as EMI shielding, Joule heating, and strain sensing. The robust and highly conductive inks prepared by this simple and environmental-friendly method hold great promise as important material candidates for the potential large-scale manufacturing of flexible and wearable electronics.

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“…Then the reaction of esterification took place between SiO 2 @MAPP and DPER. [41,42] Meanwhile, the molten materials could be expanded and foamed under certain conditions, which were beneficial to the formation of a loose porous foam carbon layer during the followed decomposition process. To a certain extent, it could also slow down the decomposition of composites and improve the thermal stability of composites.…”

Section: Smoke Density Analysismentioning

confidence: 99%

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol

Shan

et al. 2020

J of Applied Polymer Sci

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To improve the flame‐retardant property of low‐density polyethylene (LDPE) composites, a novel intumescent flame retardant (IFR) consisting of ammonium polyphosphate (APP) covered by silicon dioxide and 3‐(Methylacryloxyl) propyltrimethoxy silane (KH‐570) (SiO2@MAPP) and double pentaerythritol (DPER) was synthesized. Various methods were applied to structural characterization and property investigations of different samples. The results indicated that the solubility of APP decreased after coating with silicon dioxide (SiO2) and KH‐570. The flame retardancy of LDPE composites was improved with addition of IFR containing SiO2@MAPP/DPER. With 30 wt% addition of IFR containing SiO2@MAPP /DPER, the limiting oxygen index reached 26.8% and the tensile strength was 3.30 MPa. The tensile strength was 7.14% higher than that of 30 wt% IFR without SiO2@MAPP. The smoke density test showed that the flue gas emission was obviously improved. The addition of SiO2@MAPP effectively increased the residual carbon content of composites and thermal stability of the composites.

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Polyester-supported Chitosan-Poly(vinylidene fluoride)-Inorganic-Oxide-Nanoparticles Composites with Improved Flame Retardancy and Thermal Stability

Cited by 11 publications

References 39 publications

On the Solubility and Stability of Polyvinylidene Fluoride

On the Solubility and Stability of Polyvinylidene Fluoride

Biomass-Derived, Highly Conductive Aqueous Inks for Superior Electromagnetic Interference Shielding, Joule Heating, and Strain Sensing

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol

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Polyester-supported Chitosan-Poly(vinylidene fluoride)-Inorganic-Oxide-Nanoparticles Composites with Improved Flame Retardancy and Thermal Stability

Cited by 11 publications

References 39 publications

On the Solubility and Stability of Polyvinylidene Fluoride

On the Solubility and Stability of Polyvinylidene Fluoride

Biomass-Derived, Highly Conductive Aqueous Inks for Superior Electromagnetic Interference Shielding, Joule Heating, and Strain Sensing

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO2@MAPP and double pentaerythritol

Contact Info

Product

Resources

About

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol