ナイロンフィラメントの伸長と発熱分布

概要

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In order to investigate the effects of heat on the load-elongation phenomenon and filament breaking for nylon 6 monofilaments, the generation of heat using three types of monofilament elongation was estimated using a thermography apparatus. The filament diameter was 0.76 mm and the elongation speed was 8.3%/s. In a simple elongation, the filament temperature rose on the center and was 38℃ higher than the room temperature at breaking. Forty-five percent of elongation energy was converted into heat and 18% was stored with strain energy. In a loop elongation, filaments were heated at the loop points and the temperature rose 17.5℃ at breaking In a knot elongation, filaments were heated only on the knot points and the temperature rose 39℃ Nylon filaments generated heat through elongation and heat was stored, due to the non-conductive properties of the filaments. Heated points were softened and filaments were broken on those points Heat was not the main cause of breaking,although it induced and facilitated breaking.
社団法人日本家政学会の論文
1996-05-15