Pb yeeb nkab muaj lub npe ntawm "kub hauv yas", thiab nws yog dav siv hauv tsev kho kom zoo nkauj thiab zoo li ntawd. Cov nram qab no yog qhov kev paub ntawm pb raj khoom lag luam.
Lub polymer inert polymer, yug hauv xyoo 1970s. Nws muaj kev kub hnyav, kav ntev, tshuaj lom neeg ruaj ntseg thiab zoo, tsis muaj tshuaj lom, tsis qab, tsis muaj ntxhiab, tam sim no yog ib qho ntawm lub ntiaj teb feem ntau cov ntaub ntawv tshuaj, muaj lub koob meej "yas kub". Cov khoom yog lub teeb hauv qhov hnyav; Zoo yooj yim; Corrosion kuj, cov khoom kub uas tsis muaj zog resistant tshwj xeeb tshaj yog thaum siv nyob rau hauv lub siab, yuav siv ntev mus siv hauv qab 95 ℃, qhov kub siab tshaj plaws yuav ncav cuag 110 ℃. Qhov paug ntawm qhov yeeb nkab yog 0.007, tsis muaj nplai, tsis muaj kev txuag hluav taws kub, dej zoo, zoo siv.
Qhov saum toj no yog qhov kev paub txog tias cov chaw tsim khoom lag luam piav qhia rau txhua leej txhua tus, vam tias yuav pab tau siv tus txheej txheem ntawm tus neeg tau txais kev pab.
