I-PEVA, noma i-polyethylene vinyl acetate, iwuhlobo lwepulasitiki oluye lwasetshenziswa ngokuqhubekayo njengenye indlela ye-PVC emisebenzini ehlukahlukene, kuhlanganise nezikhwama zezidumbu. I-PEVA ibhekwa njengenye indlela evumelana nemvelo futhi ephephile kune-PVC ngenxa yokuntuleka kwayo kwama-phthalates namanye amakhemikhali ayingozi.
Enye yezinzuzo eziyinhloko zokusebenzisa i-PEVA yezikhwama zesidumbu umthelela wayo kwezemvelo. Ngokungafani ne-PVC, i-PEVA iyakwazi ukubola futhi ayikhiphi amakhemikhali anobuthi endaweni lapho ilahlwa kahle. Lapho i-PEVA iphuka, iguqulwa ibe amanzi, i-carbon dioxide, ne-biomass, okuyenza ibe inketho esimeme kakhudlwana.
Enye inzuzo yokusebenzisa i-PEVA yezikhwama zezidumbu ukuphepha kwayo. I-PEVA ayinawo ama-phthalates noma amanye amakhemikhali ayingozi avame ukungezwa ku-PVC. Lokhu kwenza i-PEVA ibe yindlela ephephile yokuphatha izinsalela zabantu kanye nalabo abahlangana nezikhwama. Ukwengeza, i-PEVA mancane amathuba okuthi izonakalise ngokuhamba kwesikhathi, iqinisekisa ukuthi isikhwama sihlala sinjalo futhi inikeza ukuvikeleka okwanele kwezinsalela.
I-PEVA iphinde ibe yinto evumelana nezimo kune-PVC, okwenza kube lula ukuyiphatha nokuyiqondisa lapho kuthuthwa izinsalela zabantu. Ukuguquguquka kwezinto kuvumela isikhwama ukuthi sihambisane nokuma komzimba, okungasiza ukuvimbela ukuvuza nokuchitheka.
Mayelana nokuqina, i-PEVA iyinto eqinile futhi eqinile engamelana nokubhoboza, izinyembezi, nomunye umonakalo. Lokhu kwenza kube inketho ethembekile yokugcina nokuthutha izinsalela zabantu.
Okunye okungase kube nomthelela ongemuhle ekusebenziseni i-PEVA yezikhwama zezidumbu yizindleko zayo. I-PEVA ivamise ukubiza kakhulu kune-PVC, okungenza inketho engathandeki kwezinye izinhlangano noma izinsiza. Kodwa-ke, izindleko ze-PEVA zivame ukuchithwa yizinzuzo zayo zemvelo nezokuphepha, okuyenza ibe inketho yesikhathi eside ekhangayo.
Okunye okungaba yinkinga ngokusebenzisa i-PEVA yezikhwama zezidumbu ukutholakala kwayo. Nakuba i-PEVA itholakala kabanzi, ingase ingatholakali kalula njenge-PVC, okuwumsebenzi osungulwe kakhulu embonini. Kodwa-ke, njengoba ukuqwashisa ngezingozi zemvelo nempilo ehlobene ne-PVC kwanda, izinhlangano eziningi zingase zishintshele ekusebenziseni i-PEVA njengendlela eqhubekayo nephephile.
Mayelana nokulahlwa, i-PEVA ingagaywa kabusha, okuyindlela evumelana nemvelo kunokuyilahla endaweni yokulahla imfucumfucu noma ukuyishisa. Lapho ugaywa kabusha i-PEVA, kubalulekile ukulandela yonke imithetho neziqondiso zendawo, kanye nokuqinisekisa ukuthi isikhwama sihlanzwa kahle futhi sihlanzwa amagciwane ngaphambi kokugaywa kabusha.
Sekukonke, i-PEVA ibhekwa njengento enhle yezikhwama zesidumbu ngenxa yezinzuzo zayo zemvelo, ukuphepha, nokuqina. Nakuba kungase kubize kakhulu kune-PVC, izinzuzo zesikhathi eside zokusebenzisa i-PEVA zingase zibe ngaphezu kwezindleko. Njengoba izinhlangano eziningi ziqaphela ubungozi bemvelo nempilo obuhlobene ne-PVC, kungenzeka ukuthi abaningi bazoshintshela ekusebenziseni i-PEVA njengendlela eqhubekayo nephephile yokuphatha izinsalela zabantu.
Isikhathi sokuthumela: Jul-29-2024