Nanoparticles hydroxide Montmorillonite

FIGURE 10.14 Compression force versus gap of EVA/PA6/APP-based intumescent formulations measured at400°C without (REF) and with nanoparticles (Si02, silica OMMT, organomodified montmorillonite LDH, lamellar double hydroxide). 

BR, butyl rubber CB, carbon black CBS, cyclohexyl-2-benzothiazolefulfenamide CNT, carbon nanotube CSPE, chlorosulfonate polyethylene CIP, carbonyl-iron powder EPM, ethylene propylene monomer EPDM, ethylene propylene diene monomer EVA, ethylene-vinyl acetate FSR, fluorosilane rubber GRP, graphite powder HGM, hollow glass microsphere lONP, iron oxide nanoparticle LDH, layered double hydroxide MBT, 2-mercaptobenzothiazol MMT, modified montmorillonite NR, natural rubber PAMAM, polyamidoamine R-EPDM, recycled ethylene propylene diene monomer SR, silicon rubber SBR, styrene-butadiene rubber TBBS, iV-tert-butyl-2-benzothiazolesulfenamide. 

The LDH materials can be very interesting to industry as they combine the features of conventional metal hydroxide-type fillers, like magnesium hydroxide (MH), with the layered silicate type of nanofillers, Hke montmorillonite. The major area of interest in this regard is the role of LDH materials as potential non-halogenated, non-toxic flame retardant for polymer matrices. For years, scientists have been using the concept of nanotechnology to improve the flame retardancy of polymer nanocomposites. This approach involves the dispersion of inorganic filler, in nanoscale, as flame retardants into a polymer matrix. Usually, for this purpose, layered silicates and various other nanoparticles (MgO, MH, etc.) are used after suitable pretreatment. Several research reports have already shown that such an approach indeed improves the flame retardancy of the composites [22,23]. 

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