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seminar report on polymar nanocomposite
Post: #1

hi am rohit singh dagar i would like to get dftails on seminar report on polymer nano composite ..
Post: #2
Polymer nanocomposites (PNC) consist of a polymer or copolymer having nanoparticles or nanofillers dispersed in the polymer matrix. These may have different forms (e.g., platelets, fibers, spheroids), but at least one dimension must be in the range of 1-50 nm. These NCP belong to the category of multiphase systems (MPS, namely, mixtures, composites and foams) that consume almost 95% of the production of plastics. These systems require a controlled mixture / combination, the dispersion stabilization achieved, the dispersed phase orientation and the combination strategies for all the MPS, including PNC, are similar. Polymeric nanoscience is the study and application of nanoscience to arrays of polymer nanoparticles, where nanoparticles are those with at least one dimension less than 100 nm.

The transition from micro-particles to nanoparticles leads to changes in their physical and chemical properties. Two of the main factors in this are the increase in the ratio of surface area to volume and particle size. The increase in the surface area / volume ratio, which increases as the particles become smaller, leads to an increasing domain of the behavior of the atoms in the surface area of ​​the particle over that of the interior of the particle. This affects the properties of the particles when they are reacting with other particles. Due to the higher surface area of ​​the nanoparticles, the interaction with the other particles within the mixture is greater and this increases the resistance, the heat resistance, etc. and many factors change for the mix. An example of a nano-polymer are silicon nano-spheres that show quite different characteristics; Their size is 40-100 nm and they are much harder than silicon, their hardness is between that of sapphire and diamond.
 


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