Inkasta oo PP (polypropylene) iyo PVC (polyvinyl chloride) ay ku jiraandadka degan tuubooyinka lamellawaxaa loo isticmaalaa hababka daaweynta biyaha ee kala-soocidda, waxaa jira kala duwanaansho muhiim ah oo ku saabsan sifooyinka agabka, waxqabadka iyo hababka rakibidda.
1. Farqiga Agabka
| Shay | PP | PVC |
| Cufnaanta (g/cm3) | 0.9-0.91 | 1.38-1.45 |
| Barta dhalaalaysa (℃) | 160-170 | 75-90 |
| Heerkulka qallooca kulaylka (℃) | 110(0.45MPa) | 65(0.45MPa) |
| Isugeynta ballaarinta toosan | 1.5 × 10⁻⁴/℃ | 6 × 10⁻⁵/℃ |
| Xoogga jiidista (MPa) | 30-40 | 50-60 |
2. Isbarbardhigga sifooyinka farsamada
| Shay | PP | PVC |
| Iska caabinta saameynta | Si cad u jebi (<0℃) | Ilaali adkeysiga (-15℃) |
| Cadaadis muddo dheer ah | Gubashada waxay u nugul tahay inay dhacdo culays joogto ah (taageerada waa in la xoojiyaa) | Iska caabin wanaagsan oo gurguurta |
| Nolosha adeegga | 3-5 Sano | Ka dheer 20%-30% marka loo eego PP |
| Soo noqnoqoshada dayactirka | 3 Sano | 5 Sano |
3. Farqiga u dhexeeya daaweynta biyaha
| Shay | PP | PVC |
| Simida dusha sare | 0.8-1.2μm | 0.4-0.6μm |
| Xagasha simbiriirixan ee dhoobada | 55°-60° | 50°-55° |
| Ku dhegga biofilm | Daciif ah (biyo-cabbid) | Xoog leh (oogada cirka ah) |
| Heerka socodka naqshadeynta (m/saacaddii) | 1.0-1.5 | 0.8-1.2 |
4. Farqiga u dhexeeya rakibidda
PP: Alxanka hawada kulul (260-300 ℃) waa in la isticmaalaa
PVC: Waxaa lagu xidhi karaa dareere ama lagu xidayaa heerkul hoose (180-220 ℃)
Aline Wang
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Waqtiga boostada: Abriil-24-2025