A low melting organic-inorganic glass and its effect on flame retardancy of clay/epoxy composites

Synergistic fire retardancy in layered-silicate nanocomposite combined with low-melting phenysiloxane glass

“…Composites and samples of pure resin were cast into aluminum molds and cured according to the following schedule: 15 h at room temperature, 1 h at 393 K, and 1 h at 423 K. A more detailed description of the synthesis of G and LS, as well as the preparation of the composites with epoxy resin, is given elsewhere. 19,20 The investigated materials are summarized in Table 1. Figure 1 illustrates the obtained nanocomposite morphology for the LS in the composites.…”

“…Nanoparticles consisting mainly of stacks of only a few silicate layers (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) are well-dispersed in composites indicating strong delamination accompanied with a state of partial exfoliation. 19,20 Pyrolysis Thermogravimetry (TG) measurements were performed in a TGA/SDTA 851 (Mettler Toledo, Germany). The samples (about 10 mg powder) were heated at a rate of 10 K min À1 in alumina pans from room temperature up to about 1200 K in N 2 with a flow rate of 30 mLmin À1 .…”

Improved mechanical properties of epoxy-based composites with hyperbranched polymer grafting glass-fiber

“…The mass loss of pristine glass-fiber above 100°C is associated with the loss of hydroxyl groups. [49] The temperature for 5wt% and 10wt% weight losses (T 5% and T 10% ) of GF-APS is 103.8°C and 223.2°C, respectively. While the T 5% and T 10% values of GF-HBPH are 226.8°C and 318.3°C, respectively, which indicate that HBPH surface modification may be stable below 200°C, it is obviously why the GF-HBPH has a higher Figure 2.…”

Phosphorus and Silicon Containing Low‐Melting Organic–Inorganic Glasses Improve Flame Retardancy of Epoxy/Clay Composites

“…[1][2][3][4][5][6][7][8][9] In the last years also layered silicates have been proposed for flame retardancy in epoxy resins [10][11][12][13][14] and we have shown that low-melting glasses can be synergists. [15,16] Among layered silicates the most widely used mineral for the preparation of nanocomposites is monNew low-melting organic-inorganic glassy polymers containing phosphorus and silicon are synthesized by the reaction between phenylphosphonic acid and methyltrichlorosilane or methyltriethoxysilane. They possess both low-softening points and high onset decomposition temperatures, which are favorable for preparing flame retardant composites.…”

“…This glass is simply named as ''glass B'' to distinguish it from the other glass which was investigated previously. [16] And ''Cl-glass B'' and ''OEt-glass B'' represent glass B prepared from methyltrichlorosilane (MeSiCl 3 ) and methyltriethoxysilane (MeSi(OEt) 3 ), respectively. A comprehensive characterization has been undertaken on the behavior and properties of Cl-glass B and OEt-glass B, with respect to structure, rheology, molecular weight, and thermostability.…”