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Polyelectrolyte multi-layers are a promising area of research in the polymer coating industry because they can be applied in a spray-on fashion at low cost in a water-based solvent. Although the polymers are held to the surface only by electrostatic forces, the multi-layer coatings adhere aggressively under liquid shear.
Measuring the surface energy is an indirect method for confirming the presence of surface functional groups without the need for microscopy or spectroscopy, often expensive and demanding tools. Contact angle measurement (goniometry) can be used to find the surface energy of the treated and non-treated surface.
Luster is the degree of gloss or sheen possessed by the fiber or textile surface. Luster adds aesthetic values in fabrics, contributes to their attractiveness. Occasionally, this adds value to their quality assessment. [2] [4] In some cases, when lustre is undesirable, fibres are purposefully dulled by the addition of substances. [1]: 73
Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is a diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is ...
Dull, even sheen unless buffed or polished Low, short term Requires frequent reapplication Safe when solvents in paste wax evaporate Easy. Applied with cloth or brush and worked into wood, excess left to cure before buffing with a cloth for desired level of sheen. Difficult. Solvents thin wax causing it to penetrate deeper. Sanding creates heat.
Polycrystalline silicon, or multicrystalline silicon, also called polysilicon, poly-Si, or mc-Si, is a high purity, polycrystalline form of silicon, used as a raw material by the solar photovoltaic and electronics industry.
The sheen [4] or gloss level of a paint is principally determined by the ratio of resinous, adhesive binder, which solidifies after drying, and solid, powdery pigment.The more binder the coating contains, the more regular reflection will be made from its smooth surface; conversely, with less binder, grains of pigment become exposed to the surface, scattering the light and providing matte ...
Multi-layered packaging are multilayer or composite materials using innovative technologies aimed to give barrier properties, strength and storage stability to food items, new materials as well as hazardous materials. [1] Multiple layers are formed by coextrusion, lamination, or various coating technologies. The material of construction of ...