Dab tsi yog qhov txawv ntawm PP thiab PVC?
Dab tsi yog qhov txawv ntawm PP thiab PVC?

Video: Dab tsi yog qhov txawv ntawm PP thiab PVC?

Video: Dab tsi yog qhov txawv ntawm PP thiab PVC?
Video: Rog peb cov niam txiv tub noj txiv pab nyuj os 2024, Kaum ib hlis
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Muaj qhov tseem ceeb ntawm lub cev sib txawv polyvinyl chloride ( PVC thiab polypropylene ( PP ). Polypropylene yog ib qho ntawm cov yas tsis muaj zog tshaj plaws, tsuas muaj ob lub ntsiab lus: carbon (C) thiab hydrogen (H). PVC los ntawm kev sib piv muaj txog 30% los ntawm qhov hnyav, ntawm cov ntsiab lus chlorine (Cl) hauv nws cov qauv yooj yim.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog polypropylene yeeb nkab siv rau?

Polypropylene yeeb nkab thiab fittings yog forindustrial daim ntaub ntawv uas muaj corrosive media. Polypropylene tej zaum yuav siv ntawm qhov kub thiab txias txog li 150 ° F hauv qhov kev pabcuam siab txuas ntxiv thiab ntawm qhov kub txog li 180 ° F nrog lub ntiajteb txawj nqus ntws.

Qhov thib ob, puas yog polyethylene muaj zog dua PVC? Tus qauv ntawm PVC yog zoo ib yam li cov polyethylene , tshwj tsis yog tias ib qho ntawm plaub hydrogen atoms hloov los ntawm chlorine. Lub zog ntawm daim ntawv cog lus mus tas li dipole yog lub luag haujlwm rau qhov tseeb tias PVC yog ntau muaj zog dua polyethylene.

Cov lus nug tseem yog, qhov txawv ntawm PVC thiab yas yog dab tsi?

Lub ntsiab sib txawv ntawm cov no yas yog qhov yooj ntawm lawv. PVC yog hloov tau yooj yim heev thiabmalleable li ib yas uas tuaj yeem pab tau rau tag nrho cov khoom lag luam. Ntawm qhov tod tes, PVCu tsis hloov pauv txhua yam thiab yog qhov nruj heev yas.

Dab tsi yog qhov muaj zog ABS lossis PVC?

PVC yog hloov tau ntau dua ABS , mas ABS yog muaj zog dua thiab ntau shock resistant. ABS Nws yog qhov zoo dua los tuav qhov txias txias, tab sis nws tuaj yeem cuam tshuam nrog kev raug tshav ntuj ncaj qha. Vim li no, ABS tej zaum yuav yog qhov kev xaiv zoo tshaj plaws txawm tias thaum lub pipesthem tus kheej kim dua PVC.

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