高分子材料の機械的性質に及ぼす静水圧力の影響

概要

論文の詳細を見る
The effects of hydrostatic pressure up to 3000 kg/cm^2 on the mechanical properties of polyvinyl chloride, polycarbonate, nylon 6 and epoxy resin were investigated. The yield strength increased linealy with increasing pressure for all the polymers investigated. The elastic modulus was little affected by pressure except epoxy resin. With increasing pressure, the elongation decreased for polyvinyl chloride, polycarbonate and nylon 6, while it increased for epoxy resin. The strain rate effect on the tensile properties was also investigated for polycarbonate and nylon 6. A linear relationship was found to exist between the yield strength and logarithmic strain rate both under a high pressure of 2000 kg/cm^2 and atmospheric pressure. It was considered that there may be a possibility of predicting the pressure dependence of the mechanical properties of polymers from the temperature dependence of those through the pressure dependence of their glass transition temperature at least for polyvinyl chloride, polycarbonate and nylon 6. Further study is needed for epoxy resin.
社団法人日本材料学会の論文
1974-01-15