In this research prepared hybrid organic – inorganic ( epoxy – TEOS ) using sol- gel method with
different ratios of Tetraethylorthosilicate (TEOS) ( 0,4,6,8,10)% .Make mechanical tests the tensile strength
and impact strength to find out carrying hybrid component with tensile , impact and the best ratio in
applications To find the best ratio (4%) compared with other ratios the good bond between epoxy and
inorganic material. To choose the best ratio 4% to study thermal gravimetric analysis (TGA). The thermal
degradation of hybrid( epoxy + 4% TEOS) take place at higher temperatures than the epoxy pure.
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