Fireproof foamed epoxy polymers

Mostovoi, A. S.; Bunenkov, P. N.; Панова, Л. Г.

doi:10.1134/s2075113316050178

Cited by 5 publications

(5 citation statements)

References 1 publication

(1 reference statement)

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“…When one evaluates the effect of a modifying additive on net polymers, it is necessary to take into account that the curing process takes place in the presence of a developed surface of a solid filler capable of influencing the kinetic characteristics of the polycondensation reaction during curing and the formation of the material's phase structure. The adsorption interactions of the oligomer composition components with the solid filler surface also plays an important role …”

Section: Resultsmentioning

confidence: 99%

Epoxy composites modified with microfibers of potassium polytitanates

Mostovoy

Kadykova

Bekeshev

et al. 2018

J of Applied Polymer Sci

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The research we conducted shows the possibility of the directed adjustment of epoxy composite performance characteristics through the application of small additives of potassium polytitanate whiskers, the introduction of polyfunctional plasticizers with chemical and mechanical methods of activation of the whole composition and its components; this ensured the creation of a new generation of epoxy composites with high‐performance properties (breaking tension = 116 MPa and modulus of elasticity at bending = 3150 MPa, destructive tension under compression = 95 MPa, impact strength = 18 kJ/m2 that meets the requirements of most industries. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46651.

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Section: Resultsmentioning

confidence: 99%

Epoxy composites modified with microfibers of potassium polytitanates

Mostovoy

Kadykova

Bekeshev

et al. 2018

J of Applied Polymer Sci

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“…The vertical flammability test results of treated cotton fabric with PF 6 − and BF 4 − anions were found to be much better compared to the other anions such as Cl − , CH 3 COO − , and (CF 3 SO 2 ) 2 N − 24 . Mostovoi et al 25 developed new compositions for fireproof foamed epoxy polymers using ammonium polyphosphate and ATFB. As a result, the after flame time of epoxy foam becomes shorter and mass losses when flaming in the air are reduced significantly.…”

Section: Introductionmentioning

confidence: 99%

Improving the flame retardancy and mechanical properties of epoxy composites using flame retardants with red mud waste

Kusakli

Kocaman

Ceyhan

et al. 2020

J of Applied Polymer Sci

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In this study, a novel flame retardant ammonium tetrafluoroborate (ATFB) was successfully synthesized using boric acid (H 3 BO 3) and ammonium hydrogen difluoride (NH 4 HF 2) as the reactants. In addition to ATFB, aluminum hydroxide (Al(OH) 3) was used as a flame retardant and red mud (RM) waste was used as a filler to prepare epoxy composite materials with enhanced flammability properties. The appropriate ratio of RM:ATFB:Al(OH) 3 both in terms of combustion and mechanical properties was found to be 15:10:5 wt%. The tensile strength of the composite in this ratio was obtained as 112 MPa, while the neat ER was 46 MPa. The burnout of the composite with the appropriate RM:ATFB:Al(OH) 3 ratio decreased in the first 10 seconds, and extinguished in 32 seconds. Moreover, the burned area of this composite was the smallest among all the others. The experimental and estimated LOI values for this composite was found as 26 and 29, respectively.

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“…The preparation methods of epoxy foam plastics mainly include chemical foaming [ 9 , 10 , 11 , 12 ], physical foaming [ 13 , 14 ], and hollow microsphere methods [ 15 , 16 , 17 ]. The former two methods are suitable for manufacturing low- and medium-density foam plastics, while the latter method is mostly used for high-density foam plastics.…”

Section: Introductionmentioning

confidence: 99%

The Preparation and Performance of Epoxy/Acetylene Carbon Black Wave-Absorbing Foam

Liu,

Huang,

2024

Polymers

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The epoxy foam material filled with an absorbing agent effectively absorbs electromagnetic waves. In this study, epoxy resin was used as the matrix, and acetylene carbon black was used as the magnetic absorbing agent to prepare an absorbing foam material (epoxy/CB). The microstructure of acetylene carbon black (CB) and its distribution in epoxy resin, as well as the effects of pre-polymerization time and CB content on the foam structure, were systematically characterized. Additionally, two dispersion methods, the hot-melt in situ stirring dispersion method and the three-roll milling dispersion method, were studied for their effects on the foaming process and absorbing properties of epoxy/CB. The results showed that with the prolongation of pre-polymerization time, the pore size decreased from 1.02 mm to 0.4 mm, leading to a more uniform pore distribution. Compared to the hot-melt in situ stirring dispersion method, the three-roll milling dispersion method effectively improved the dispersion of CB in epoxy resin, reducing the aggregate size from 300–400 nm to 70–80 nm. The pore diameter also decreased from 0.453 mm to 0.311 mm, improving the uniformity of particle size distribution. However, the absorbing material prepared with the three-roll milling dispersion method exhibited unsatisfactory absorption performance, with values close to 0 dB at mid-low frequencies and around −1 dB at high frequencies. In contrast, the absorbing material prepared with the hot-melt in situ stirring dispersion method showed better absorption performance at high frequencies, reaching around −9 dB.

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Fireproof foamed epoxy polymers

Cited by 5 publications

References 1 publication

Epoxy composites modified with microfibers of potassium polytitanates

Epoxy composites modified with microfibers of potassium polytitanates

Improving the flame retardancy and mechanical properties of epoxy composites using flame retardants with red mud waste

The Preparation and Performance of Epoxy/Acetylene Carbon Black Wave-Absorbing Foam

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