研究論文
カーボンブラック充塡天然ゴムの伸長結晶化過程における物質移動
キーワード:
Paraffin Crystals,
Wide Angle X-ray Diffraction,
Mapping,
Crack Propagation,
Energy Dissipation,
Reinforcement
2022 年 95 巻 7 号 p. 207-211
詳細
2022 年 95 巻 7 号 p. 207-211
Strain-induced crystallization which occurs at the crack tip is thought to be the origin of excellent strength of natural rubber (NR). However, the detailed mechanism of the reinforcement by the strain-induced crystallization is still unclear. By the X-ray diffraction mapping technique, we find that paraffine crystals are specifically formed around crack tip where strain-induced crystallization is observed in a carbon black filled NR sample. Dissipation of energy for the transportation of paraffine molecules from inside the sample to the surfaces is thought to partly contribute the reinforcement of the material.
