Muva nje, esiteji semboni yamakhemikhali, i-hexahydrophthalic anhydride (HHPA), izinto zokusetshenziswa zamakhemikhali eziphilayo, isibe yindaba eshisayo. Njengenhlanganisela esebenza kahle kakhulu, i-hexahydrophthalic anhydride idlala indima ebalulekile emikhakheni eminingi yezimboni. Uchungechunge lwentuthuko entsha yakamuva emakethe yayo kanye nokusetshenziswa kwayo luye lwavusa amagagasi.
I-anhydride ye-hexahydrophthalic iwuketshezi olumhlophe noma olubonakalayo. Ngokusabela kwayo okuyingqayizivele kwamakhemikhali, igxile kakhulu ezintanjeni zezimboni zemikhakha eminingi, kufaka phakathi izembozo, izinto zikagesi kanye nezinto zikagesi, izinto ezihlanganisiwe, kanye nezinamathiseli. Emkhakheni wezembozo, ama-resin e-polyester asebenza kahle kakhulu ahlanganyela ekuhlanganiseni afana "ne-boost shot" yamapende okuvikela ezimbonini kanye nama-topcoat ezimoto. Njengamanje, imboni yokukhiqiza inezidingo eziqinile zokubukeka nokuqina kwemikhiqizo. Ukusebenzisa izembozo ze-polyester resin eziqukethe i-anhydride ye-hexahydrophthalic akugcini nje ngokugcina ama-topcoat ezimoto ekhanya ngaphansi kwezimo zansuku zonke zomoya, imvula, i-asidi, kanye nokuguguleka kwe-alkali kodwa futhi kwenza imishini yezimboni igqoke ungqimba "lwezembatho" zokulwa nokugqwala, kwandise isikhathi sayo senkonzo futhi kusize amabhizinisi ukunciphisa izindleko nokukhulisa ukusebenza kahle.
Imboni ye-elekthronikhi nezinto zikagesi yilapho i-anhydride ye-hexahydrophthalic ikhanya khona ngempela. Namuhla, imikhiqizo ye-elekthronikhi ihlala iqhubekela phambili ekuncipheni nasekusebenzeni okuphezulu, futhi inezidingo eziphezulu kakhulu zokufakwa kokushisa kanye nokuqina kokushisa kwezinto zangaphakathi. Ama-epoxy resin curing agents enziwe ngamabhodi wesekethe aphrintiwe e-hexahydrophthalic anhydride kanye nezinto zokupakisha ze-elekthronikhi ezinezivikelo "eziphezulu", okususa ingozi yamasekethe amafushane. Ngisho nalapho ukushisa kuqongelela ngesikhathi sokusebenza isikhathi eside, umthwalo omningi, kungazinzisa "isimo sengqondo" sezingxenye ze-elekthronikhi futhi kuqinisekise ukusebenza okuzinzile kwemishini.
Emkhakheni wezinto ezihlanganisiwe, njengezinto zokusetshenziswa zama-resin e-polyester angagcwali, i-hexahydrophthalic anhydride, kanye nezinto ezifana nemicu yengilazi, kudala “amaqhawe alula” emikhakheni yezindiza kanye neyokwakha imikhumbi – izinto ezihlanganisiwe ze-fiberglass. Ngokuthuthuka okukhulayo kwamaphrojekthi amakhulu ezindiza kanye nokuguqulwa kokwakhiwa kwemikhumbi kube ukukhiqizwa okuphezulu, lezi zinto ezilula nezinamandla aphezulu zihlangabezana nezidingo ezilula zezimboni. Zenza izindiza zikwazi ukunciphisa “isisindo esiningi” ukuze zindize kakhulu futhi zisebenzise amandla amaningi, futhi zenze imikhumbi isheshe emanzini.
Kuhle ukusho ukuthi iphethini yokuhlinzekwa kwezidingo emakethe ye-hexahydrophthalic anhydride ibilokhu ishintsha kancane muva nje. Njengoba kukhuphuka izinga lokukhula kwezimboni ezingezansi, uhlangothi lwezidingo lubonise ukuthambekela okunamandla okukhuphuka, futhi amanani ezinkampani ezihlobene nawo akhuphuka inyanga nenyanga. Ukuze kuhlangatshezwane nesidingo esikhulayo, abakhiqizi abakhulu be-hexahydrophthalic anhydride bayalungiselela. Abanye basheshisa ukuguqulwa okuhlakaniphile kwemigqa yokukhiqiza yakudala ukuze kuthuthukiswe ukusebenza kahle kokukhiqiza, kanti abanye batshala imali eningi ekwandisweni kwefektri kanye nokwethulwa kwemishini emisha, bezama ukwandisa amandla abo okukhiqiza.
Kodwa-ke, amathuba avame ukuhambisana nezinselele. I-anhydride ye-hexahydrophthalic ingeyasezimpahleni eziyingozi ezibolayo zesigaba sesi-8, futhi imigqa yokuphepha eqinile kumele ilandelwe ngesikhathi sokuthutha nokugcina. Iminyango efanele isanda kuqinisa ukuqapha, inxusa amabhizinisi ukuthi asebenzise imithetho yokuphatha amakhemikhali ayingozi. Kusukela ekwabiweni kwezimoto zokuthutha ezikhethekile kuya ekuhlolweni okuvamile kokulwa nokuvuza, ukuvimbela umlilo, kanye nezinye izikhungo ezindaweni zokugcina impahla, akukho lutho olunganakwa ukuqinisekisa "ukuphepha okuphelele" kwale nto eluhlaza ebalulekile kuyo yonke inqubo.
Abangaphakathi embonini bahlaziya ukuthi i-anhydride ye-hexahydrophthalic inamandla amakhulu entuthuko esikhathini esizayo. Uma nje izinkinga zokukhiqiza okuphephile kanye nokutholakala okuzinzile zinqotshwa, izoqhubeka nokunika amandla ukuthuthukiswa kanye nokusungula izinto ezintsha kwezimboni ezahlukene egagasini lamakhemikhali lomhlaba wonke, ibe "umdlali oyinhloko" ngemuva kwentuthuko yekhwalithi ephezulu yemboni.
Isikhathi sokuthunyelwe: Jan-02-2025
