Ntawm no yog qhov zoo sib xws thiab qhov sib txawv ntawm PVC (Polyvinyl chloride) thiab PVDC (Polyvinylidene chloride):

Yam zoo sib xws:

1. Tshuaj Muaj Tshuaj: Ob leeg PVC thiab PVDC yog thermoplastic polymers uas muaj chlorine hauv lawv cov qauv tshuaj.
2. Cov Khoom Siv Teeb Meem: Ob cov ntaub ntawv pom cov khoom siv hluav taws xob zoo tiv thaiv ya raws, oxygen, thiab lwm cov roj av, ua rau lawv haum rau kev siv cov ntawv thov.
3. Rau pob tshab: Ob tug PVC thiab PVDC tuaj yeem tsim hauv cov ntaub ntawv pob tshab, cia pom kev pom ntawm cov ntsiab lus ntim.
4. Muaj zog: Ob cov ntaub ntawv tuaj yeem ua tau yooj yim los ntawm ntau cov txuj ci xws li extrusion, txhaj tshuaj molding, thiab daim ntawv qhia nyiaj.

Qho sib txawv:

1. Cov Qauv Tshuaj: PVC yog lub tsheb yas polymer nrog cov chav tsev rov qab dua ntawm Ch2 = Chcl, Thaum PVDC yog Vinylidene chloride polymer nrog rov qab ua haujlwm ntawm CH2 = CCL2.
2. Kev ua haujlwm pov thawj: PVDC muaj cov teeb meem superiories piv rau PVC. PVDC cov yeeb yaj kiab muab cov dej noo zoo thiab cov pa roj, muab kev tiv thaiv zoo dua rau cov khoom lag luam rhiab xws li cov khoom noj thiab cov khoom noj lwj.
3. Thermal ruaj khov: PVDC tau ntau dua thermal stability tshaj pvc. Nws tuaj yeem tiv taus cov dej siab dua uas tsis muaj kev cuam tshuam tseem ceeb.
4. Nqi: PVC feem ntau tsis kim dua piv rau PVDC, ua rau nws siv dav dav hauv ntau yam kev siv, suav nrog cov kav dej, fab, thiab qee cov ntaub ntawv thov ntim khoom.
5. Cuam tshuam ib puag ncig: PVC tau cuam tshuam nrog kev txhawj xeeb ib puag ncig vim kev tso cov tshuaj chlorine thiab cov dioxins thaum ntau lawm thiab pov tseg. PVDC yog suav tias yog ib puag ncig ntau ib puag ncig yog nws tsis tso tawm cov tshuaj chlorine lossis cov tshuaj lom zem thaum nws kav lub neej.

Nws yog ib qho tseem ceeb kom nco ntsoov tias PVC thiab PVDC muaj cov khoom sib txawv thiab muaj kev suav rau cov ntawv thov sib txawv. PVDC feem ntau yog siv nyob rau hauv cov ntaub ntawv thaiv kev ntim cov ntaub ntawv siab uas cov khoom zoo dua yog qhov yuav tsum tau ua, Thaum pvc nrhiav cov ntawv thov nyob rau hauv ntau hom kev lag luam vim tias nws cov versatility thiab tus nqi-ua hauj lwm.