Heerka Dhalada Biyaha ee PET Resin (PET)
Hordhac Product
Xirmooyinka polyester-ka ee heerka dhalada waxay ku habboon yihiin samaynta dhalooyinka wax lagu duubo ee biyaha saafiga ah, biyaha macdanta dabiiciga ah, biyaha la miiray, biyaha la cabbo, weelasha dhadhanka iyo nacnaca, dhalada qurxinta iyo walxaha xaashida PET iwm.
Astaanta badeecada waxa ku jira waxyaabo bir ah oo hooseeya, waxa ku jira acetaldehyde oo hooseeya, qiimaha midabka wanaagsan, viscosity deggan.Iyada oo la raacayo habka gaarka ah iyo tignoolajiyada wax soo saarka sare, alaabtu waxay leedahay sifooyin processing aad u fiican, heerkul hooseeya, baaxad ballaadhan oo farsamaynta, daah-furnaan aad u fiican iyo heer sare oo heerka badeecada la dhammeeyey.Samaynta dhalooyinka, alaabtu waxay leedahay hoos u dhac yar iyo maaddo yar oo acetaldehyde ah.Iyadoo la hubinayo badbaadada iyo nadaafadda, waxay si wax ku ool ah u ilaalin kartaa siday u kala horreeyaan dhadhanka biyaha la safeeyey, biyaha macdanta ah iyo biyaha saafiga ah.
Tilmaanta Farsamada
Ttem | Unug | Tusmada | Habka tijaabada | |
Viscosity gudaha (ganacsiga shisheeye) | dL/g | 0.800± 0.02 | GB17931 | |
Waxa ku jira acetaldehyde | ppm | <1 | chromatography gaaska | |
Qiimaha midabka | L | - | >82 | HunterLab |
b | - | <1 | HunterLab | |
Kooxda dhamaadka Carboxyl | mmol/kg | <30 | Titration Photometric | |
barta dhalaalaysa | °C | 243 ± 2 | DSC | |
Biyaha ku jira | wt% | <0.2 | Habka miisaanka | |
Boodhka budada | PPm | <100 | Habka miisaanka | |
Wt.oo ah 100 chips | g | 1.55±0.10 | Habka miisaanka |
Shuruudaha Habraaca Caadiga ah
Qalajintu waa lagama maarmaan ka hor habaynta dhalaalidda si looga hortago xabagta biyaha.Xaaladaha qalajinta caadiga ah waa heerkulka hawada 160-180 ° C , 4-6 saacadood wakhtiga joogitaanka, heerkulka barta- sayaxa ka hooseeya -40 * C .
Heerkulka foostada caadiga ah waa 275-293 ° C.