PBAT (polybutylene terephthalate) ni impfunyapfunyo ya polybutylene terephthalate. Ibikoresho fatizo byo gutegura PBAT ni acide adipic (AA), aside terephthalic (PTA), butylene glycol (BDO) nka monomers, ukurikije igipimo runaka cya esterification cyangwa transesterification reaction na polycondensation reaction yo guhuza aside polyadipic / butylene terephthalate ester, hanyuma binyuze muri esterification, polycondensation na granulation intambwe eshatu zo gutegura ibicuruzwa byanyuma. PBAT irimo impeta ya benzene, bityo ifite ubushyuhe bwinshi bwa molekuline, ariko igipimo gito cyo kwangirika; molekile zifata umwanya munini kandi zifasha kuvanga nizindi molekile; Ifite iminyururu ibinure, yemeza ko iminyururu ihindagurika neza bityo ihindagurika neza.
PBAT ni polymer ya kimwe cya kabiri cya kirisiti, ubusanzwe ubushyuhe bwa kirisitiya bugera kuri 110 ° C, naho gushonga ni nka 130 ° C, n'ubucucike buri hagati ya 1.18g / ml ~ 1.3g / ml. Crystallinity ya PBAT igera kuri 30%, kandi ubukana bwa Shore buri hejuru ya 85. PBAT ni copolymer yitsinda rya alifatique na aromatique, rihuza imiterere myiza yo gutesha agaciro ya poliferi ya alifatique hamwe nuburyo bwiza bwubukanishi bwa poloteri nziza. Imikorere yo gutunganya PBAT isa cyane na LDPE, kandi firime irashobora gutwarwa nibikoresho byo gutunganya LDPE.
PBAT ifite ibinyabuzima byiza, kandi ibicuruzwa bikozwe na PBAT biroroshye kandi byangiritse rwose hifashishijwe mikorobe kamere na bagiteri, amaherezo ihinduka dioxyde de carbone n'amazi. Bitewe no guhindagurika kwayo, kurambura kuruhuka, kurwanya ubushyuhe hamwe ningaruka ziterwa, PBAT irashobora gukoreshwa mubikorwa byo gupakira plastike, nk'imifuka yo guhaha, imifuka yimyanda, nibindi, kandi ikoreshwa no mubikoresho byo kumeza, firime ya mulch nizindi nzego.
Igihe cyo kohereza: Mutarama-19-2023