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A facile and palladium-free process for the electroless plating on poly(vinyl chloride) (PVC) plastic has been demonstrated. The process is based on the Cu adsorption capacity of semi-interpenetrating polymer network (semi-IPN) hydrogel chemically bonded to PVC surface via a simple and one-step approach that applying a chitosan/polyethylene glycol/glutaraldehyde system under mild stirring at room...
In order to reapply the waste energetic materials as welding heat source, in this article, the energy densities of several types of gunpowder were calculated with the equation of energy density. The results show that the energy densities of powders are very low, which are impossible to weld metal. Otherwise, the effects of aluminium powder and thermite on the energy density of gunpowder were investigated,...
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