Qhov softness thiab hardness ntawm thawj PET zaj duab xis yog dab tsi?
Aug 25, 2023
PET thawj zaj duab xis yog ib hom yas zaj duab xis, thiab nws hardness muaj ib qho tseem ceeb ntawm nws cov nyhuv siv. Lub hardness ntawm tus thawj PET zaj duab xis yog feem ntau muaj feem xyuam rau cov nram qab no yam.
Ua ntej tshaj plaws, qhov softness thiab hardness ntawm thawj PET zaj duab xis muaj feem xyuam rau kev xaiv ntawm nws cov khoom siv raw. Tus thawj PET zaj duab xis feem ntau yog ua los ntawm polyester resin, thiab hardness thiab softness ntawm polyester resin nyob ntawm nws qhov hnyav molecular, crystallinity, polycondensation degree, thiab lwm yam. Yog li ntawd, los ntawm kev xaiv cov khoom sib txawv, PET thawj cov yeeb yaj kiab uas muaj qhov sib txawv hardness thiab softness yuav ua tau. tau.
Qhov thib ob, qhov softness thiab hardness ntawm tus thawj PET zaj duab xis muaj feem xyuam rau nws cov txheej txheem technology. Cov txheej txheem ntawm PET thawj zaj duab xis suav nrog extrusion, ncab, calendering, txheej thiab lwm yam txuas, thiab cov txheej txheem tsis sib xws ntawm txhua qhov txuas yuav cuam tshuam qhov softness thiab hardness ntawm PET thawj zaj duab xis. Piv txwv li, qhov sib piv stretching, kub, ceev thiab lwm yam tsis nyob rau hauv lub stretching txheej txheem yuav cuam tshuam lub hardness thiab softness ntawm thawj PET zaj duab xis.
Thaum kawg, qhov hardness ntawm thawj PET zaj duab xis kuj muaj feem xyuam rau nws qhov chaw siv. PET raw zaj duab xis feem ntau yog siv los ua cov ntim khoom noj, khoom siv kho mob, cov khoom siv hluav taws xob, thiab lwm yam. Nws yuav tsum muaj qhov sib txawv hardness thiab softness kom tau raws li cov kev xav tau sib txawv hauv ib puag ncig siv sib txawv.
Txhawm rau ua kom tiav, qhov nyuaj ntawm PET thawj zaj duab xis nyob ntawm ntau yam xws li xaiv cov khoom siv raw, kev siv tshuab thiab siv ib puag ncig. Los ntawm kev xaiv tsim nyog thiab kev tswj hwm ntawm cov xwm txheej no, PET thawj zaj duab xis haum rau ntau zaus tuaj yeem tau txais.
