PTA Ac Acide Terephthalic Acide）
Uburyo bwo gukora ibicuruzwa
PTA ni impera yo hepfo ya peteroli.Peteroli ikora inzira runaka yo kubyara naphtha (izwi kandi nka lisansi yoroheje), ikuramo MX (ivanze xylene), hanyuma hagakuramo PX (paraxylene).PTA ikoresha PX nkibikoresho fatizo na acide acetike nkibishishwa, kandi ihindurwamo umwuka mukirere cyakozwe na catalizator kugirango itange aside terephthalic.Noneho acide terephthalic acide ihindurwamo hydrorefine kugirango ikureho umwanda, hanyuma ikoreshwe, itandukanijwe, yumishijwe kandi itegura ibicuruzwa bya terefalitike itunganijwe neza, ni ukuvuga ibicuruzwa bya PTA byarangiye.
Kumenyekanisha ibicuruzwa
PTA ni kirisiti yera cyangwa ifu yubushyuhe bwicyumba, uburozi buke kandi burashya.Ahantu ho gutwika ni 384 ~ 421 ° C, ubushyuhe bwa sublimation 98.4kJ / mol, ubushyuhe bwo gutwika 3225.9kJ / mol, n'ubucucike 1.55g / cm3.Irashobora gukemuka mubisubizo bya alkali, gushonga gato muri Ethanol ishyushye, idashonga mumazi, ether, acide glacial acetic acide na chloroform.
Gusaba ibicuruzwa
Ibikoresho byingenzi byingenzi byo gukora fibre polyester, firime, ibicuruzwa bya pulasitike, gusiga amarangi hamwe na plastike, kandi bikoreshwa nkumuhuza wamabara.
PTA ni kimwe mu bikoresho by’ibanze by’ibanze, bikoreshwa cyane muri fibre chimique, inganda zoroheje, ibikoresho bya elegitoroniki, ubwubatsi nibindi bice byubukungu bwigihugu.
Ikoreshwa rya PTA ryibanze cyane, hejuru ya 90% ya PTA kwisi ikoreshwa mugukora polyethylene terephthalate (bita polyester, PET).Gukora toni 1 ya PET, toni 0,85-0.86 za PTA na toni 0.33-0.34 za MEG (Ethylene glycol).Polyester ikubiyemo fibre fibre, fibre polyester, amacupa ya chip na chip ya firime.Mu Bushinwa, 75% ya PTA ikoreshwa mu gukora fibre polyester;20% ikoreshwa mugukora amacupa yo mu rwego rwa PET resin, ikoreshwa cyane mugupakira ibinyobwa bitandukanye, cyane cyane ibinyobwa bya karubone;5% ya polyester yo mu rwego rwa firime, ikoreshwa cyane mubikoresho byo gupakira, firime na kasete.Kubwibyo, ibicuruzwa byo hepfo ya PTA ni fibre polyester.
