Ngokombono wezinto zokusetshenziswa, intengo ye-o-xylene ye-Sinopec isalokhu izinzile okwamanje, kuyilapho ukusebenza kwemakethe ye-naphthalene yezimboni, izinto zokusetshenziswa ze-anhydride ye-phthalic esekelwe ku-naphthalene, kubuthakathaka futhi amanani ayaqhubeka nokuwa. Ukwehla kwamanani ezinto zokusetshenziswa kuye kwenza buthaka ukwesekwa kwezindleko ze-anhydride ye-phthalic, okunikeza indawo yokuthi intengo ye-anhydride ye-phthalic esekelwe ku-naphthalene yehle.
Ngokombono wokuhlinzeka kanye nesidingo, imboni ye-anhydride ye-ortho-phthalic isebenza ezingeni eliphezulu, futhi ukunikezwa kwemakethe kwanele, kodwa isidingo esingezansi sibuthakathaka, okuholele ekungalinganini okukhulu phakathi kokunikezwa kanye nesidingo. Ngenxa yokungadingeki ngokwanele emakethe yokugcina, izinga lokusebenza kwezinkampani ze-phthalic anhydride ezisebenzisa ipulasitiki alisakabuyeli ezingeni eliphezulu ngaphambi koNyaka Omusha, futhi ukusetshenziswa kwe-phthalic anhydride kunqunyelwe. Izinga lokusebenza eliphezulu lemboni ye-phthalic anhydride kuholele ekuqongeleleni okuqhubekayo kwengcindezi yempahla. Ngokwesimo sokulethwa ngokweqile, intengo yemakethe ye-phthalic anhydride ingaphansi kwengcindezi eyehlayo.
Njengoba zithintwe ukungalingani phakathi kokunikezwa kanye nesidingo kanye nokwehla kwamanani, umuzwa wemakethe we-phthalic anhydride nawo ubonise ukusabela kweketanga okunciphayo. Abahwebi nezinkampani ezisezansi basalokhu bengenathemba ngemakethe yesikhathi esizayo futhi banentshiseko yokuthenga ephansi. Ukuze bagweme izingozi, ezinye izinkampani zikhetha ukunciphisa ukuthenga noma ukulibazisa izinhlelo zokuthenga, okwenza isimo sokungathembeki emakethe sibe sibi kakhulu.
Uma sibheka phambili, sithintekile ukwehla okukhulu kwentengo ye-naphthalene yezimboni yezinto zokusetshenziswa, ukwesekwa kwezindleko zemakethe ye-anhydride ye-phthalic kuye kwaba buthaka, kanye nombono onamandla wokulinda nokubona emakethe, ingcindezi yokwehla kwamanani esikhathini esifushane ibalulekile. Umehluko wentengo ye-anhydride ye-phthalic enkambisweni ye-ortho-naphthalene kulindeleke ukuthi ukhule, futhi ukumelana nokuthunyelwa kwemakethe kukhulu kakhulu. Uhlangothi lokuhlinzekwa kwemakethe lusabhekene nengcindezi ethile, ecindezela kakhulu intengo ye-anhydride ye-phthalic. Ngesikhathi esifanayo, isidingo semakethe eyinhloko ye-plasticizer engezansi siyaqhubeka nokuba buthaka, okwenza kube nzima ukwakha ukwesekwa okusebenzayo kwemakethe, futhi umphumela wokucindezela awushintshi. Ngomqondo wokuqapha wemboni, isimo sokuhweba semakethe singaqhubeka nokuba lula. Sekukonke, ngenxa yokufakwa kwezinto eziningi ezimbi njengokwesekwa okunganele ohlangothini lwezindleko, isidingo esibuthakathaka kanye nokumelana nokuthunyelwa, kulindeleke ukuthi isikhungo sokudonsa amandla semakethe yasekhaya ye-anhydride ye-phthalic sizoqhubeka nokwehla esikhathini esifushane, futhi umkhuba jikelele uzoba buthaka kakhulu.
Isikhathi sokuthunyelwe: Mashi-20-2025