Synthesis of<scp>SMA‐PEG</scp>hyperdispersant and its stabilization mechanism for carbon black

Kang, Yanli; Zhu, Aiping

doi:10.1002/app.54001

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…The ester group on the molecule of the DINP molecule is an electron-donating group with a negative charge, and consequently, DINP behaves as an anionic dispersant. This characteristic makes the adsorption of DINP on the surface of CB not only have the spatial positional resistance but also form the electrostatic repulsive force. , The CB particles wrapped by DINP molecular chains repel each other in very close proximity, which prevents the reagglomeration of CB particles. In addition, the ester group can be compatible with the poly(ether polyol) matrix, which enhances the compatibility of CB with polyether polyols.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Study of Low Percolation Threshold Antistatic Reticulated Polyurethane Foam

Yang,

Liang,

Wang

et al. 2024

ACS Appl. Polym. Mater.

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Reticulated polyurethane foam (PUF), a widely utilized polymer-based insulator, is notoriously susceptible to electrostatic issues, posing significant challenges in various applications. Carbon black (CB) as a conductive filler in PUF is easily agglomerated and is difficult to disperse. This can result in the high addition of CB and affects the performance of the PUF. In this work, antistatic reticulated PUFs (PUF-CB) with a low percolation threshold (0.84 wt %) were prepared using conductive CB as an antistatic agent. Creative work has been carried out to disperse CB particles using a ball milling process and the dispersant diisononyl phthalate, which has reduced the agglomeration and greatly improved the dispersion of CB particles. The volume resistivity test results showed that PUF-CB had the lowest volume resistivity of 3.59 × 10 5 Ω•m when the addition of CB was 1.40 wt %. The distribution of CB in polyether polyols and foams was analyzed using optical microscopy and SEM. The distribution of CB particle size was counted using nanoparticle size and a Zeta potential analyzer. The CB dispersion mechanism was innovatively proposed to explain the successful preparation of low percolation threshold PUFs.

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Section: Resultsmentioning

confidence: 99%

Preparation and Study of Low Percolation Threshold Antistatic Reticulated Polyurethane Foam

Yang,

Liang,

Wang

et al. 2024

ACS Appl. Polym. Mater.

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Optimized Design of Material Preparation for Cotton Linters-Based Carbon Black Dispersion Stabilizers Based on Response Surface Methodology

An,

Yang,

et al. 2024

Polymers

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Carbon black particles possess dimensions on the nanometer or sub-nanometer scale. When utilized, these particles have a tendency to aggregate, which compromises their stability under storage conditions. To address this issue, a dispersant was prepared using cotton short fibers as raw materials through etherification and graft polymerization with acrylamide (AM) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) as raw materials. The dispersant was then used to disperse carbon black to test its dispersing performance. A response surface optimization test was utilized to ascertain the influence of AMPS monomer mass, AM monomer mass, and potassium persulfate (KPS) initiator mass on the dispersibility of carbon black during dispersant preparation, and a set of optimal preparation conditions were obtained. The dispersion stability of carbon black in water was assessed using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), elemental analysis (EA), thermogravimetric analysis (TG), zeta potential analysis, high magnification scanning electron microscopy (SEM), and contact angle measurements. Results revealed that the optimum mass ratio of carboxymethyl cellulose (CMC) to AMPS to AM was 1:0.69:1.67, with the KPS initiator comprising 1.56% of the total monomer mass. By incorporating the dispersant at a concentration of 37.50%, the particle size of carbon black particles was observed to decrease from 5.350 μm to 0.255 μm, and no agglomeration of carbon black particles occurred even after 3 weeks of storage.

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Synthesis ofSMA‐PEGhyperdispersant and its stabilization mechanism for carbon black

Cited by 2 publications

References 39 publications

Preparation and Study of Low Percolation Threshold Antistatic Reticulated Polyurethane Foam

Preparation and Study of Low Percolation Threshold Antistatic Reticulated Polyurethane Foam

Optimized Design of Material Preparation for Cotton Linters-Based Carbon Black Dispersion Stabilizers Based on Response Surface Methodology

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