rubbery lub xeev txhais
Lub xeev rubbery txhais tau hais tias ntu ntu txav tab sis tag nrho cov saw molecular tsis txav. Nyob rau lub sijhawm no, ntau qhov kev deformation (100 txog 1000%) tuaj yeem tshwm sim nyob rau hauv lub zog me. Tom qab lub zog sab nraud tshem tawm, qhov deformation tuaj yeem ua kom zoo tu qab, uas yog hu ua siab elastic deformation. Lub siab elasticity yog qhov tshwj xeeb txhua yam tshuab ntawm polymers.