E ui o le PP (polypropylene) ma le PVC (polyvinyl chloride)tagata e nonofo i le paipa lamellae faʻaaogaina i faiga faʻamamāina o le vai, e iai eseesega taua i meatotino o meafaitino, faʻatinoga ma metotia faʻapipiʻi.
1. Eseesega o Meafaitino
| Mea | PP | PVC |
| Mafiafia (g/cm3) | 0.9-0.91 | 1.38-1.45 |
| Tulaga fa'a'asu (℃) | 160-170 | 75-90 |
| Vevela fa'aleagaina o le vevela (℃) | 110（0.45MPa） | 65（0.45MPa） |
| Fa'asologa o le fa'alauteleina laina | 1.5×10⁻⁴/℃ | 6×10⁻⁵/℃ |
| Malosiaga o le tensile (MPa) | 30-40 | 50-60 |
2. Faatusatusaga o meatotino fa'amekanika
| Mea | PP | PVC |
| Tete'e i le a'afiaga | E manino lava le maaleale (<0℃) | Tausia le malosi (-15 ℃) |
| Omiga mo se taimi umi | E faigofie ona tupu le totolo pe a faʻaauau pea le avega (e manaʻomia ona faʻamalosia le lagolago) | Tete'e lelei i le totolo |
| Olaga tautua | 3-5 Tausaga | E umi atu i le 20%-30% nai lo le PP |
| Taimi e tausi ai | 3 Tausaga | 5 Tausaga |
3. Eseesega i le togafitia o le vai
| Mea | PP | PVC |
| Lamolemole o le fogāeleele | 0.8-1.2μm | 0.4-0.6μm |
| Tulimanu o le se'e o le palapala | 55°-60° | 50°-55° |
| Pipi'i o le biofilm | Vaivai (e le fiafia i le vai) | Malosi (fogāeleele polar) |
| Fuainumera o le tafe o le mamanu (m/h) | 1.0-1.5 | 0.8-1.2 |
4. Eseesega i le faʻapipiʻiina
PP： E tatau ona fa'aaoga le uelo ea vevela (260-300 ℃)
PVC: E mafai ona fa'apipi'i i ni vaila'au fa'amama pe fa'apipi'i i le vevela maualalo (180-220 ℃)
Alinna Wang
Imeli:alinna@bestpacking.cn
Whatsapp:+8617379954122 Wechat:karol1005
Skype: ola:.cid.7e9f6df9c6d4d15c
Taimi na lafoina ai: Aperila-24-2025