Glass additives spheres

The treatment of C q with an excess of bis(trifluoromethyl)nitroxide [(CF3)2NO radicals] leads to multiple additions with an average of 18 (Cp3)2NO groups bound to the fuUerene sphere (Scheme 6.16) [74]. The reaction has been carried out in a glass tube equipped with a Teflon valve. The resulting light brown solid decomposes above 158 °C. 

Although glass spheres are classified as nonreinforcing fillers, the addition of 40 g of these spheres to 60 g of nylon 66 increases the flexural modulus, the compressive strength, and the melt index of the polymer. The tensile strength, the impact strength, the creep resistance, and the elongation of these composites are less than those of the unfilled nylon 66. 

Globular proteins form close-packed monolayers at fluid interfaces. Hence a large contribution to the adsorbed layer viscoelasticity arises from short-range repulsive interactions between hard-sphere particles. In addition to, or instead of, this glass-like5 structure from hard spheres densely packed in two dimensions, many adsorbed proteins can exhibit attractive interactions leading to a more gel-like5 network structure. Hence the mechanical properties of an adsorbed layer depend on many... 

In this paper, we studied the glass transition and the localization-delocalization transition in a disparate-size hard-sphere mixture from a dynamical viewpoint. For Cl = 0.5, the existence of the delocalized phase of the small particles is confirmed by investigating the frequency-dependent diffusion constant. Near the glass transition, we found an additional quasi-elastic structure in " q,uj) and Di(u>) at small o), which suggests that the diffusion mechanism of the small particles would change from the liquid-like diffusion to a slow diffusion in a random potential. 

Special methods of incorporation for delustering, titanium dioxide is added to polymer at 210°C to avoid excessive agglomeration the order of addition of glass fiber to PP/PA-6 blend affects blend mechanical performance, glass fiber must be added to already compatibilized blend to avoid filler encapsulation the use of vacuum hopper and premixing of polymer with copper spheres causes a reduction in porosity of highly filled polyamide ... 

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