EVA yog cov khoom yas uas muaj ethylene (E) thiab vinyl acetate (VA). Qhov piv ntawm ob cov tshuaj no tuaj yeem hloov kho kom tau raws li kev thov sib txawv. Qhov siab dua cov ntsiab lus ntawm vinyl acetate (VA cov ntsiab lus), qhov siab dua nws cov pob tshab, softness thiab toughness yuav.
Cov yam ntxwv ntawm EVA thiab PEVA yog:
1. Biodegradable: Nws yuav tsis ua mob rau ib puag ncig thaum muab pov tseg lossis hlawv.
2. Zoo ib yam li PVC nqe: EVA yog kim dua li cov tshuaj lom PVC, tab sis pheej yig dua li PVC tsis muaj phthalates.
3. Lub teeb yuag: Qhov ntom ntawm EVA yog li ntawm 0.91 txog 0.93, thaum PVC yog 1.32.
4. Tsis muaj ntxhiab tsw: EVA tsis muaj ammonia lossis lwm yam ntxhiab tsw ntxhiab.
5. Heavy hlau-dawb: Nws ua raws li cov kev cai thoob ntiaj teb cov khoom ua si (EN-71 Part 3 thiab ASTM-F963).
6. Phthalates-dawb: Nws yog tsim rau cov menyuam yaus cov khoom ua si thiab yuav tsis ua rau muaj kev pheej hmoo ntawm cov yas tso tawm.
7. High transparency, softness thiab toughness: daim ntawv thov ntau yam yog dav heev.
8. Super tsis kub tsis kam (-70C): haum rau icing ib puag ncig.
9. Dej tsis kam, ntsev thiab lwm yam tshuaj: tuaj yeem nyob ruaj khov hauv ntau daim ntawv thov.
10. Kev kub siab adhesion: tuaj yeem txuas nrog nylon, polyester, canvas thiab lwm yam ntaub.
11. Tsawg lamination kub: tuaj yeem ua kom ntau lawm.
12. tuaj yeem luam tawm thiab offset luam tawm: tuaj yeem siv rau ntau yam khoom zoo nkauj (tab sis yuav tsum siv EVA number case).
EVA hauv ob sab phlu, raws li lub npe qhia, yog ib yam khoom muab tso rau hauv lub thawv EVA no, thiab tom qab ntawd ib pob yuav tsum tau sab nraud, thiab EVA hauv ob sab phlu yog muab tso rau hauv lub pob no. Cov pob no tuaj yeem yog lub thawv hlau hlau, lossis ib lub thawv dawb lossis thawv ntawv.
Kev faib khoom ntawm EVA ntim hauv ob sab phlu
EVA ntim hauv ob sab phlu feem ntau muab faib ua cov ntsiab lus hauv qab no:
1. Tsawg ntom ntom, qis dua ib puag ncig ib puag ncig Eva, xim dub, dawb thiab xim.
2. High-density, high-density environmentally friendly EVA, dub, dawb thiab xim.
3. EVA kaw cell 28 degrees, 33 degrees, 38 degrees, 42 degrees.
4. EVA qhib cell 25 degrees, 38 degrees
Post lub sij hawm: Oct-16-2024