Plastics tuaj yeem raug tso dej num los ntawm: cov tshuaj siv tshuaj hauv lawv cov khoom siv, xws li: kev sib txuas, kev sib tw, thiab kev sib txuas.
Plastics tuaj yeem raug cais los ntawm: lawv lub cev, xws li: hardness, density, tensile lub zog, tsis ua hauj lwm rau cov tshav kub thiab iav kev hloov, thiab los ntawm lawv cov khoom siv tshuaj, xws li cov organic chemistry ntawm lub polymer thiab nws cov tsis haum thiab cov tshuaj tiv thaiv ntau cov khoom siv tshuaj thiab cov txheej txheem, xws li: cov tshuaj organic, cov tshuaj oxidation, thiab cov hluav taws xob ionizing. Hauv particular, feem ntau cov khoom yuav yaj thaum cua kub rau ob peb puas celsius.
Lwm cov kev cais tawm raws li cov khoom tsim nyog uas tsim nyog rau kev tsim lossis cov khoom tsim. Piv txwv ntawm cov khoom zoo thiab cov chav kawm yog: thermoplastics thiab thermosets, polymers, cov khoom yas thiab cov khoom siv hlau thiab lwm yam khoom siv nrog cov qauv, xws li elastomers.