今一度考えたい架橋ゴムの構造と物性発現のメカニズム（その6，最終稿）架橋ゴムの“物性の謎”に対する ゲル網目構造モデルの解釈

抄録

Several physical phenomena called “mysteries of physical properties of rubber” are observed in real cross-linked rubber, which are quite difficult to interpret reasonably using the conventional rubber elasticity theory and molecular network structure model, such as,
①Why the frictional coefficient of cross-linked rubber is very high (µ=1 ~ 3) compared with other materials (μ=0.2 ~ 0.3) ?
②Why Poisson’s ratio of cross-linked rubber is almost 0.5 ?
③Why hysteresis loss of cross-linked rubber becomes larger significantly at a large extension ?
④Why fracture properties of cross-linked rubber drops down extremely by swelling with solvents ?
⑤Why the edge of notch of cross-linked rubber is not sharp but round in shape under large extension ?
In this final discussion, the gel-network structure model could answer to these mysterious phenomena in cross-linked rubber almost reasonably depending on its characteristic structure and properties. Thus, now we might be able to understand the relationship between structure and the properties of cross-linked rubber in a comprehensive and systematic fashion.