Nri ọkwa plastik iko

A na-akọwa plastik nke a na-enye nri nke ọma dị ka plastik nchekwa nri. Okwu a na-ezo aka na plastik ọ bụla dabara adaba maka imetụ nri ma ọ bụ ihe ọṅụṅụ a na-eri.Nri ọkwa plastic ikonwere ike ichebe nri site na mmebi, na-enye nchekwa nri ma na-eme ka nri dị ọhụrụ. Ebe ọ bụ na ụfọdụ nri ma ọ bụ ihe ọṅụṅụ acidic nwere ike ịpụpụta kemịkalụ n'ime akpa ha, ọ dị mkpa ka e debe ha n'ime akpa kwesịrị ekwesị.

Na COPAK, ihe niile dị naiko plastik ọkwa nrie ji PET na PLA mee ha. N'ọhịa plastik, e ji koodu akara PET site na Koodu 1. Ịkwesighi ịbụ ọkachamara plastik iji chọpụta ma ihe e ji mee ya ọ̀ bụ ọkwa nri. Koodu ahụ nwere triangle nke akụ gbara ọnụọgụgụ dị n'etiti 1 na 7 gburugburu. N'ozuzu, ọnụọgụgụ 1 ruo 7 na-egosi plastik ọkwa nri.

PET na-egosi ezigbo nguzogide iyi, ike dị elu na modulus flexural, yana nkwụsi ike dị elu (ya bụ, nguzogide mmetụta). Polyethylene terephthalate,iko plastik ọkwa nrikarama ihe ọṅụṅụ nke a na-enye otu ugboro (dịka ọmụmaatụ, ihe ọṅụṅụ dị nro, ihe ọṅụṅụ egwuregwu, mmiri, wdg) karama ihe oriri (dịka ọmụmaatụ, ihe eji esi nri salad, ketchup, mmanụ, wdg), karama vitamin, ite mmanụ aki oyibo.

Gịnị ka ọ bụ? Polyethylene terephthalate (PETE ma ọ bụ PET) bụ plastik dị fechaa nke e mere ka ọ sie ike ma ọ bụ sie ike nke na-eme ka ọ ghara inwe mmetụta, ma na-enyere aka ichebe nri ma ọ bụ mmiri mmiri dị n'ime ngwugwu ahụ.

Kedu ka esi eji ya?iko plastik nke ọkwa oodA na-ejikarị ya eme ihe n'ihe e ji echekwa nri maka ihe ọṅụṅụ dị nro, ihe ọṅụṅụ egwuregwu, mmiri otu onye, ​​ketchup, ihe e ji esi nri salad, vitamin, karama mmanụ akwụkwọ nri na ihe e ji bọta ahụekere mee.