Effect of Carbon-Containing Conducting Fillers on the Properties of Epoxy Coatings

Piddubnyi, V. K.; Zin, І. М.; Lavryshyn, B. M.; Bilyi, L. М.; Kolodii, Ya. I.; Ratushna, M. B.

doi:10.1007/s11003-005-0160-4

Cited by 8 publications

(4 citation statements)

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“…In turn, at lower resistance, the risk of electric shock to the human body increases [46]. Specific volume electrical resistance was lowered by five orders of magnitude compared to the previously obtained compositions containing graphite [47]. The low value of specific volume electrical resistance of filled compositions and, consequently, high electrical conductivity are due to screening-oriented electron transfer through thermally expanded graphite due to hopping and tunneling mechanisms [48].…”

Section: Discussionmentioning

confidence: 86%

Aryloxyphosphazene-Modified and Graphite-Filled Epoxy Compositions with Reduced Flammability and Electrically Conductive Properties

Konstantinova,

Yudaev,

Orlov

et al. 2023

J. Compos. Sci.

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A method has been developed for producing an epoxy composition based on a low-viscosity epoxy-resorcinol resin, a phosphazene-containing curing agent, isophoronediamine, and thermally expanded graphite as a filler. The degree of cure and the absence of side reactions during the curing process were confirmed using IR spectroscopy. The influence of the content of phosphazene-containing curing agent and filler on the physico-mechanical properties of the composition, its fire resistance, and antistatic properties were studied. Using the UL-94 HB horizontal burning test, it was found that the addition of 10 and 20 wt. % phosphazene-containing curing agent (relative to isophoronediamine) reduces the burning speed by 10 times compared to a sample without phosphazene. The addition of a filler to a composition containing phosphazene reduces the burning speed by 25 times compared to a composition without phosphazene and imparts antistatic properties to the epoxy composition, as evidenced by the specific volume electrical resistance of the order of 101 Ohm·m. Phosphazene-containing curing agent had no statistically significant effect on specific volume electrical resistivity (p > 0.05). Tests of physico-mechanical and adhesive properties (tensile strength, compressive strength, water absorption, water solubility, abrasion resistance, and adhesive strength) of filled epoxy compositions with 10 and 20 wt. % phosphazene-containing curing agent demonstrated that these properties met the requirements for floor coverings in construction and parts of electrical devices.

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Section: Discussionmentioning

confidence: 86%

Aryloxyphosphazene-Modified and Graphite-Filled Epoxy Compositions with Reduced Flammability and Electrically Conductive Properties

Konstantinova,

Yudaev,

Orlov

et al. 2023

J. Compos. Sci.

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“…The additive is mixed to the base matrix in this case, as well, which provides long-term protection against electrostatic charge, but the polymer will not become conducting. Various graphite powders can be used relatively easily and successfully, but even these additives worsen mechanic properties [6,7]. Among carbon derivatives, foam graphite, pitch and carbon nanotubes are also used [8,9].…”

Section: Additivesmentioning

confidence: 99%

Dynamic Mechanical Tests on Magnesium Catalyzed Cast Polyamide 6 Composites Having Different Additives

Andó¹,

Kalácska²,

Czigány

2010

MSF

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Due to the effect of graphite and montmorrilonit additives, the impact strenght slightly decreases, but by the influence of softening material, the value of impact strength can be three times more than the pure PA6. It is determined that graphite can be added until 3%, montmorrilonit can be added until 6% and softening material can be added until 15% to the base matrix. These samples give basis for special characteristics examinations.

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“…Several standard tests are available for measuring the electrical properties of plastics, such as breakdown strength [1], volume resistivity [4,5], surface resistivity [6][7][8][9], electrical conductivity [10,11], and dielectric permittivity [12]. From the electrical tests surface resistivity measurement is mostly used to characterize antistatic and static dissipative properties.…”

Section: Introductionmentioning

confidence: 99%

Electrical Properties of Magnesium Catalyzed Cast PA6 Semi-Finished Products

Andó

Kalácska

Czigány

2010

Journal of Thermoplastic Composite Materials

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Graphite and conducting carbon black have been added to magnesium catalyzed cast polyamide-6. Surface resistivity has been measured on samples containing various amounts of additives in wet, standard, and dry states. The samples exhibited antistatic properties at already 2.5 wt% graphite loading. To reach similar properties 1 wt% high conducting graphite and 0.5 wt% high conducting carbon black was needed. It is important to note, that in the case of the high conducting additives above a certain concentration (above 2 wt% for high conducting graphite and above 0.5 wt% for high conducting carbon black) the surface resistivity decreases rapidly to the order of 107 Ω, belonging to the electrostatic dissipative class.

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Effect of Carbon-Containing Conducting Fillers on the Properties of Epoxy Coatings

Cited by 8 publications

References 0 publications

Aryloxyphosphazene-Modified and Graphite-Filled Epoxy Compositions with Reduced Flammability and Electrically Conductive Properties

Aryloxyphosphazene-Modified and Graphite-Filled Epoxy Compositions with Reduced Flammability and Electrically Conductive Properties

Dynamic Mechanical Tests on Magnesium Catalyzed Cast Polyamide 6 Composites Having Different Additives

Electrical Properties of Magnesium Catalyzed Cast PA6 Semi-Finished Products

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