English: Rubber tapping. Rubber tree. Latex. Natural rubber (polyisoprene) elasticity. Rubber band stretching causes the decrease in entropy that gives rise to the elastic force in the crosslinked rubber molecules (continuous rubber molecular network chains). In stretched rubber, the molecules chains are almost linear. Koh Chang, Thailand.
Русский: Каучук. Пластичность и эластичность. При нагреве с сульфуризацией переход в высокоэластичное состояние. Гевея бразильская. Ко Чанг, Таиланд.
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