Ethylene-vinyl acetate(EVA), kuma aka sani dapoly (ethylene-vinyl acetate)(PEVA), shine copolymer na ethylene da vinyl acetate.Nauyin kashi na vinyl acetate yawanci ya bambanta daga 10 zuwa 40%, tare da sauran kasancewar ethylene.Akwai nau'ikan nau'ikan copolymer na EVA daban-daban guda uku, waɗanda suka bambanta cikin abun ciki na vinyl acetate (VA) da yadda ake amfani da kayan.
EVA mai hana ruwamembrane wani nau'i ne na kayan takarda mai sassauƙa da aka ƙera ta hanyar jerin matakai ciki har da tsarawa, sanyaya, gwaji, bundling da marufi, tare da ethylene vinyl acetate copolymer a matsayin babban albarkatun ƙasa, gauraye da adadin da ya dace na gyare-gyare, antioxidants, ultraviolet absorbers, masu launi. , fillers, plasticizers, da dai sauransu.
EVA mai hana ruwamembrane yana nunawa ta kyakkyawar juriya ga fatattaka damuwa na muhalli, mai kyau tauri, juriya yanayi, juriya mai ƙarancin zafin jiki, ƙarfi mai ƙarfi, juriya ga fashewar damuwa, sassauci, ƙarfin ƙarfi, ƙaramin ƙayyadaddun nauyi, babban elongation, kwanciya mai dacewa, babu ƙaura, da dai sauransu It ya shafi koguna na karkashin kasa iri-iri, tunnels, hanyoyin karkashin kasa, gine-gine na birni da sauran ayyukan hana ruwa da kuma hana ruwa.
| Abubuwa | |||
| FS2 | JS2 | ||
| Ƙarfin Ƙarfin Ƙarfi | Yanayin zafi na al'ada (23 ℃) | 60 (N/cm) | 16 (MPa) |
| Babban zafin jiki (60 ℃) | 30 (N/cm) | 6 (MPa) | |
| Tsawaitawa a lokacin hutu | Yanayin zafi na al'ada (23 ℃) | 400 | 550 |
| Ƙananan zafin jiki (-20 ℃) | 300 | 350 | |
| Ƙarfin hawaye | 50 (N) | 60 (KN/m) | |
| Rashin Tsari (0.3MPa, 30min) | Babu yabo | Babu yabo | |
| Lankwasawa ƙananan zafin jiki | -20 ℃ Babu fasa | -35 ℃ Babu tsatsa | |
| Bayanan kula: | |||
| Kauri | 30mil (0.8mm), 40mil (1.0mm), 50mil (1.2mm), 60mil (1.5mm), 80mil (2.0mm) Musamman. | ||
| Tsawon mirgine | 20m | ||
| Mirgine Nisa | 2m | ||
| L da | Fiber goyan bayan coils sun dace da tsarin haɗin ginin tushe ko tsarin ɗaure na inji. | |||||
| Nau'in P | Ƙarfafa nada ya dace da tsarin tsayayyen ruwa na inji. | |||||
| H irin | Coil mai kama da juna ya dace da ambaliya da sarrafa kumburi mai kyau. | |||||
Ayyukan gundumomi: tashar jirgin karkashin kasa da rami mai gudu na karkashin kasa.
M gini, sauki waldi.
