Preparation of Room Temperature Vulcanized Silicone Rubber Foam with Excellent Flame Retardancy

Abstract

To retard the spread of fire in many cases with sealing materials is significant. A series of silicone rubber foam materials were prepared with room temperature vulcanization and foaming reactions. The morphology, chemical structure, cell structure, and thermal stability were investigated and results proved that the synthesis of silicone rubber was successful in a wide range of feed ratios. The fire-retardant tests were carried out to study the fire-proof property of the composite materials, and the excellent performance showed a promising prospect for wide application in sealing materials.

Thermal Decomposition Process of Fireproof Sealant Measured with Thermogravimetric and Fourier Transform Infrared Spectroscopy Analysis and Estimated Using Shuffled Complex Evolution

“…In Equation (1), α represents the conversion rate, which is the proportion of the solid reactant to the product at the reaction time t. α can be calculated according to the thermogravimetric data, and it is described by Equation (2). dα/dt stands for the reaction rate.…”

“…Implementing fire prevention measures is crucial work to provide smoke resistance, heat insulation, and sealing functions [1]. Fireproof sealant, with excellent performance, low hardness, favorable viscosity, and exceptional resistance to high temperatures [2], is mainly utilized to seal gaps between building components and holes in building structures [3]. Nevertheless, low performing fireproof sealant may have the following disadvantages: low fire protection effect due to its inherent flammability [4]; poor sealing performance because of aging [5]; harmfulness to human health and environmental protection due to the toxic gases and fumes released [6,7].…”

The Preparation of a novel moisture-curing silicone conformal coating

“…The peak observed at 1261 cm −1 is attributed to the bending vibration of C-H in the methyl group bonded to the silicone atom, whereas the peaks at 2962 cm −1 and 2906 cm −1 are associated with the stretching vibration of C-H [22]. The absorption peaks observed at 1020 cm -1 and 1095 cm -1 are indicative of the Si-O-Si bond [22], while the absorption peak at 1413 cm -1 corresponds to the Si-C bond [23].The absorption peak at 1413 cm -1 corresponds to the characteristic of Si-C [23], while the stretching vibration peak at 2837 cm -1 is indicative of O-CH3 [24]. The presence of a weak hydroxyl characteristic absorption peak at 3400-3600 cm -1 [24] is hypothesized to be a result of the hydrolysis of the methoxy group during testing.…”

Effect of Al‐based metal‐organic frameworks/halloysite nanotubes on the flame retardancy of silicone rubber foam

“…In recent years, various materials have been added to SiFs to improve its flame retardancy. 7,8 Among them, several metallic compounds, such as aluminum hypophosphite, 9 ferric oxide, 10 superfine aluminum hydroxide, 11 and Mg/Zn/ Al-layered hydroxide, 12 exhibit excellent flame retardancy. However, there are numerous novel metallic compounds that have yet to be tried.…”