Polyurethane elastomers yog ib chav kawm ntawm cov ntaub ntawv elastic polymer nrog ib qho tseem ceeb ntawm urethane pawg hauv lawv cov saw hlau molecular.
Thaum lub ntim ntau lawm ntawm elastomers yog me me piv rau tag nrho cov khoom polyurethane, lawv yog cov khoom tseem ceeb thiab tseem ceeb ntawm polyurethane. Polyurethane elastomers muaj ntau cov khoom siv raw, cov txheej txheem ua ntau yam, thiab cov qauv kho tau, ua rau muaj qhov tshwj xeeb nyuaj / mos ntu thaiv cov qauv thiab theem sib cais-vim lub cev sib cuam tshuam.
Qhov kev tsim no imparts kev ua tau zoo heev thiab dav adjustability rau polyurethane elastomers, txaus siab rau ntau yam kev xav tau hauv kev ua haujlwm niaj hnub thiab lub neej. Cov txiaj ntsig tseem ceeb ntawm polyurethane elastomers muaj xws li ntau yam hardness, siab tensile lub zog / elongation, zoo heev poob siab absorbing, zoo heev hnav tsis kam, thiab superior low-temperature elasticity.
Piv nrog rau cov roj hmab, polyurethane elastomers muaj qhov zoo xws li hnav tsis kam, txiav tsis kam, kua muag tsis kam, siab load-bearing muaj peev xwm, pob tshab lossis translucency, ozone kuj, castability, thiab ntau yam hardness. Lub hardness ntawm polyurethane elastomers tuaj yeem nyob ntawm ntug dej hiav txwv A1O rau Shore D80, thaum cov roj hmab tsis tu ncua feem ntau poob ntawm Shore A60 thiab A100.
Tsawg-hardness polyurethane elastomers tuaj yeem npaj yam tsis muaj qhov sib ntxiv ntawm cov yas yas, tsis muaj kev cuam tshuam lawv cov kev ua tau zoo. Piv nrog rau cov yas, polyurethane elastomers tsis ua nkig, nthuav tawm siab elongation, muaj zog elastic rov qab muaj peev xwm, thiab muaj kev hnav zoo heev. Ntxiv mus, nruj polyurethane elastomers tuaj yeem ua tiav thiab txawm tias dhau qhov tawv ntawm cov yas.
Hauv kev sib piv rau cov khoom siv hlau, cov khoom siv polyurethane elastomer yog lub teeb yuag, muaj suab nrov qis, tiv thaiv kev degradation, yooj yim ua tiav thiab zoo li tus, tiv taus ntsev tsuag corrosion, thiab muab cov khoom rwb thaiv tsev.