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Register a new userتحضیر و توصیف مادة لفح حراري شفافة راداریا
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لقد تم تحضیر مادة مركبة بولیمیریة عبارة عن ( راتنج الریزول المعدل/ألیاف السیلیكا القصیرة)، حیث تم تصنیع راتنج الریزول و من ثم مزجه مع بولیمیر البولي ڤینیل بوتیرال بنسب وزنیة مختلفة من أجل التقلیل من قصافة راتنج الریزول، حیث تمت دراسة خصائص المزائج المیكانیكیة و الحراریة و الفیزیائیة لاختیار أفضل نسبة مزج للبولي ڤینیل بوتیرال مع راتنج الریزول و التي كانت تساوي 15 جزء وزني بولي ڤینیل بوتیرال لكل 100 جزء وزني من راتنج الریزول.
Modified resole resin/short silica fiber composite materials have been prepared. The resole resin was synthesized and then blended with Polyvinylbutyral (PVB) polymer with different weight ratios to reduce its brittleness. The mechanical, thermal and physical properties of Resol- PVB blends were studied to characterize these blends and select the most appropriate mixing ratio of polyvinyl butyral with resole resin, which was identified at 15 phr of polyvinyl butyral for every 100 parts of resole resin.
References used
Chawla, Krishan K, Composite Materials: Science and Engineering. Springer-Verlag New York. 2012.542p
Charles, M., Gilmore. Materials science and engineering properties. 1st ed. (2014). Cengage Learning, p. 704
Vincenzini, P. and M. Singh. Advanced Inorganic Fibrous Composites V. Trans Tech Publications, 2006
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One popular heat transfer augmentation technique involves the use
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aims to promote surface turbulence that is intended mainly to
increase the heat transfer coefficient and surface are
a. It was
reported that non-flat surfaces have free convection coefficients
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The goal of this study aims mainly to examine heat transfer
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convection heat transfer compared to equivalent smooth surfaces
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The results show also the rectangular profiles of roughness give the
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