Ngokwembono yezinto eziluhlaza, ixabiso le-o-xylene leSinopec lisazinzile okwangoku, ngelixa ukusebenza kwemarike ye-naphthalene yezimboni, izinto eziluhlaza ze-anhydride ye-phthalic esekelwe kwi-naphthalene, kubuthathaka kwaye amaxabiso ayaqhubeka nokuhla. Ukwehla kwamaxabiso ezinto eziluhlaza kuye kwanciphisa inkxaso yeendleko ze-anhydride ye-phthalic, okubonelela indawo yokuba ixabiso le-anhydride ye-phthalic esekelwe kwi-naphthalene lihle.
Ngokwembono yokubonelela kunye nemfuno, ishishini le-anhydride ye-ortho-phthalic lisebenza kwinqanaba eliphezulu, kwaye unikezelo lwemarike lwanele, kodwa imfuno esezantsi ibuthathaka, nto leyo ekhokelele ekungalinganini okukhulu phakathi kobonelelo kunye nemfuno. Ngenxa yemfuno engonelanga kwimarike yokugqibela, izinga lokusebenza kweenkampani ze-phthalic anhydride ezisezantsi alikabuyeli kwinqanaba eliphezulu ngaphambi koNyaka oMtsha, kwaye ukusetyenziswa kwe-phthalic anhydride kulinganiselwe. Izinga eliphezulu lokusebenza kweshishini le-phthalic anhydride kukhokelele ekuqokeleleni okuqhubekayo koxinzelelo lwempahla. Kwimeko yokunikezelwa ngokugqithisileyo, ixabiso lemarike le-phthalic anhydride liphantsi koxinzelelo oluphantsi.
Zichatshazelwe kukungalingani phakathi kokunikezelwa kunye nemfuno kunye nokuhla kwamaxabiso, imvakalelo yemarike ye-phthalic anhydride ikwabonakalise ukwehla okukhulu kwempendulo yetsheyini. Abarhwebi kunye neenkampani ezisezantsi basacinga ukuba imarike yexesha elizayo iza kuba buthathaka kwaye banomdla wokuthenga ophantsi. Ukuze baphephe iingozi, ezinye iinkampani zikhetha ukunciphisa ukuthengwa okanye ukulibazisa izicwangciso zokuthenga, nto leyo eyonyusa imeko yemarike.
Xa sijonga phambili, sichaphazeleka kukwehla okukhulu kwexabiso le-naphthalene yezinto zokwenza imveliso zorhwebo, inkxaso yeendleko zemarike ye-anhydride ye-phthalic iye yabuthathaka, kunye nemvakalelo enamandla yokulinda nokubona kwimarike, uxinzelelo oluphantsi kumaxabiso kwixesha elifutshane lubalulekile. Umahluko wexabiso le-anhydride ye-phthalic kwi-ortho-naphthalene kulindeleke ukuba ukhule, kwaye ukumelana nokuthunyelwa kwemarike kukhulu kakhulu. Icala lokubonelela ngemarike lisajongene noxinzelelo oluthile, olucinezela ngakumbi ixabiso le-anhydride ye-phthalic. Kwangaxeshanye, imfuno yemarike ephambili ye-plasticizer iyaqhubeka nokuba buthathaka, okwenza kube nzima ukwenza inkxaso esebenzayo kwimarike, kwaye isiphumo soxinzelelo oluchaseneyo asitshintshi. Ngengqondo yobulumko yeshishini, imeko-bume yorhwebo lwemarike inokuqhubeka nokuba lula. Lilonke, ngenxa yokubekwa kwezinto ezininzi ezimbi ezifana nenkxaso enganeleyo kwicala leendleko, imfuno ebuthathaka kunye nokumelana nokuthunyelwa, kulindeleke ukuba iziko lobunzima bemarike yasekhaya ye-anhydride ye-phthalic iya kuqhubeka nokuhla kwixesha elifutshane, kwaye umkhwa uphela uya kuba buthathaka kakhulu.
Ixesha lokuthumela: Matshi-20-2025