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Triboelectricity of polymers is a phenomenon caused by mechanical scission of the polymer main chain on a frictional surface. A frictional experiment was designed to examine mechanical fracture of polymers in a vacuum in the dark at 77K. The mechanical force on polyvinyl chloride (PVC) and polyvinyl fluoride (PVF) powder induced two types of scission of the carbon-carbon bonds of polymer main chains...
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