PPH yeeb nkab thiab PPR yeeb nkab yog ob lub kav dej ua los ntawm polypropylene, tab sis lawv muaj ntau qhov sib txawv raws li hauv qab no.
Cov ntaub ntawv sib txawv: PPH kav siv polypropylene copolymer, thaum PPR kav siv random copolymer ntawm polypropylene, uas muaj cov qauv sib txawv.
Kev sib txawv ntawm qhov kub thiab txias: PPH kav dej feem ntau muaj qhov kub ntawm 0 degree -90 degree, thaum PPR kav feem ntau muaj qhov kub ntawm -10 degree -95 degree . Yog li ntawd, cov kav dej PPR yog cov kav ntev dua li cov kav dej PPH nyob rau hauv qhov kub thiab txias.
Kev sib txawv compressive: PPR kav dej muaj compressive zoo thiab lawv lub zog compressive tuaj yeem ncav cuag PN25 lossis PN32 qib, thaum PPH kav tsis muaj zog thiab lawv lub zog compressive feem ntau qis dua PN16.
Txawv coefficient ntawm thermal expansion: PPR yeeb nkab muaj ib tug me me coefficient ntawm thermal expansion dua PPH yeeb nkab, yog li PPR yeeb nkab muaj tsawg deformation nyob rau hauv cov ntaub ntawv ntawm thermal expansion thiab contraction.
Cov xim sib txawv: PPH yeeb nkab feem ntau yog dawb lossis grey, thaum PPR yeeb nkab feem ntau yog ntsuab lossis dawb.
Hauv kev xaus, PPH yeeb nkab thiab PPR yeeb nkab yog ob qho tib si cov kav dej zoo nrog qee yam ntxwv thiab daim ntawv thov scenarios, thiab cov khoom siv yuav tsum raug xaiv raws li qhov xav tau tiag tiag; PPR yeeb nkab haum rau qee qhov xav tau cov kav dej, xws li cov kav dej kub, cov kav dej cua sov, thiab lwm yam, thaum PPH yeeb nkab haum rau qee qhov tsis tshua muaj siab, cov kav dej kub, xws li cov kav dej, cov kav dej tshuaj, thiab lwm yam.