Ethylene-vinyl acetate(EVA), sidoo kale loo yaqaanpoly (etylene-vinyl acetate)(PEVA), waa copolymer-ka ethylene iyo vinyl acetate.Miisaanka boqolkiiba vinyl acetate caadi ahaan wuu kala duwan yahay 10 ilaa 40%, inta soo hartayna waa ethylene.Waxaa jira saddex nooc oo kala duwan oo ah EVA copolymer, kuwaas oo ku kala duwan maadada vinyl acetate (VA) iyo habka loo isticmaalo alaabta.
EVA biyuhu-mareenkaXuubku waa nooc ka mid ah walxaha xaashida dabacsan ee lagu soo saaray nidaamyo taxane ah oo ay ku jiraan qaabaynta, qaboojinta, tijaabinta, xidhidhka iyo baakadaha, oo leh ethylene vinyl acetate copolymer oo ah sheyga ugu muhiimsan ee ceeriin, oo lagu qaso qadar ku habboon wax-ka-beddelayaasha, antioxidants, nuugayaasha ultraviolet, midabeeyayaasha. , buuxinta, caagadaha, iwm.
EVA biyuhu-mareenkaXuubabka waxaa lagu muujiyaa iska caabin heer sare ah oo dillaaca deegaanka, qallafsanaanta wanaagsan, iska caabinta cimilada, iska caabinta heerkulka hooseeya, dabacsanaanta xoogga leh, caabbinta dillaaca cadaadiska, dabacsanaanta, xoogga sare, cufnaanta yar ee gaarka ah, dhererka sare, dhejinta habboon, barokac la'aan, iwm. Waxay quseysaa noocyo kala duwan oo godad dhulka hoostiisa ah, tunnel-ka, tareenada dhulka hoostiisa mara, dhismooyinka dowladda hoose iyo kuwa kale ee ilaalinta biyaha iyo jeexjeexyada jeexjeexyada.
| Walxaha | |||
| FS2 | JS2 | ||
| Xoogga Jilicsan | Heerkulka caadiga ah (23 ℃) | 60 (N/cm) | 16 (MPa) |
| Heerkulka sare (60 ℃) | 30 (N/cm) | 6 (MPa) | |
| Dheeraynta xilliga nasashada | Heerkulka caadiga ah (23 ℃) | 400 | 550 |
| Heerkul hoose(-20℃) | 300 | 350 | |
| Xoog jeexid | 50 (N) | 60 (KN/m) | |
| Qulqulaya (0.3MPa, 30min) | Wax daadsan | Wax daadsan | |
| foorarsiga heerkulka hooseeya | -20℃ Wax dillaac ah ma jiro | -35℃ Wax dillaac ah ma jiro | |
| Xusuusin: | |||
| Dhumucda | 30mil(0.8mm),40mil(1.0mm),50mil(1.2mm),60mil(1.5mm),80mil(2.0mm) La habeeyay. | ||
| Dhererka duubista | 20m | ||
| Balaadhka duubista | 2m | ||
| L nooc | Gariiradaha dhabarka ee fiber-ku waxay ku habboon yihiin nidaamyada isku xidhka aasaasiga ah ee la taaban karo ama nidaamyada dhejinta farsamada. | |||||
| Nooca P | Gariiradda la xoojiyay waxay ku habboon tahay nidaamka biyuhu go'an ee farsamada. | |||||
| nooca H | Gariiradda homogeneous waxay ku habboon tahay daadadka iyo habaynta qanjirada. | |||||
Shaqooyinka dawladda hoose: Tareennada dhulka hoostiisa mara iyo tunnel-ka socodka tareenada dhulka hoostiisa mara.
Dhismaha ku habboon, alxanka fudud.
