EVA bụ ihe eji eme plastik nke ethylene (E) na vinyl acetate (VA) mejupụtara. Enwere ike ịhazi oke nke kemịkalụ abụọ a iji gboo mkpa ngwa dị iche iche. Ọdịnaya dị elu nke vinyl acetate (ọdịnaya VA), nke ka nghọta ya dị elu, ịdị nro na ike siri ike ga-adị.
Njirimara nke EVA na PEVA bụ:
1. Biodegradable: Ọ gaghị emerụ gburugburu ebe a tụfuo ya ma ọ bụ kpọọ ya ọkụ.
2. Yiri ọnụahịa PVC: EVA dị ọnụ karịa PVC na-egbu egbu, ma dị ọnụ ala karịa PVC na-enweghị phthalates.
3. Dị arọ: Njupụta nke EVA sitere na 0.91 ruo 0.93, ebe nke PVC bụ 1.32.
4. Na-esighi isi: EVA enweghị amonia ma ọ bụ isi ísì ndị ọzọ.
5. Igwe anaghị agba nchara: Ọ na-akwado ụkpụrụ egwuregwu egwuregwu mba ụwa (EN-71 Part 3 na ASTM-F963).
6. Phthalates-free: Ọ dị mma maka ihe ụmụaka ji egwuri egwu na ọ gaghị ebute ihe ize ndụ nke ịhapụ plasticizer.
7. Nghọta dị elu, ịdị nro na ike siri ike: ngwa ngwa dị nnọọ obosara.
8. Super obere okpomọkụ na-eguzogide (-70C): adabara maka icing gburugburu ebe obibi.
9. Mmiri na-eguzogide mmiri, nnu na ihe ndị ọzọ: nwere ike ịnọgide na-eguzosi ike na ọnụ ọgụgụ dị ukwuu nke ngwa.
10. Igwe ọkụ dị elu: nwere ike ịkwado na naịlọn, polyester, kanvas na akwa ndị ọzọ.
11. Low lamination okpomọkụ: nwere ike mee ngwa ngwa mmepụta.
12. Enwere ike ibipụta ihuenyo na dechapụ ebipụta: enwere ike iji ya maka ngwaahịa ndị ọzọ mara mma (ma ga-eji ink EVA mee ihe).
EVA lining, dị ka aha na-egosi, bụ ụfọdụ ngwaahịa etinyere na nke a EVA igbe, na mgbe ahụ a ngwugwu a chọrọ n'èzí, na EVA lining na-etinye na ngwugwu a. Ihe ngwugwu a nwere ike ịbụ igbe ígwè, ma ọ bụ igbe kaadi ọcha ma ọ bụ katọn.
Nhazi ihe nke mkpuchi nkwakọ ngwaahịa EVA
A na-ekewa mkpuchi mkpuchi EVA n'ime isi ihe ndị a:
1. Obere njupụta, obere njupụta gburugburu ebe obibi enyi na enyi EVA, nwa, ọcha na agba.
2. Elu-njupụta, elu-njupụta gburugburu ebe obibi enyi na enyi EVA, nwa, ọcha na agba.
3. Eva mechiri cell 28 degrees, 33 degrees, 38 degrees, 42 degrees.
4. Eva meghere cell 25 degrees, 38 degrees
Oge nzipu: Ọktoba 16-2024