Lub lim tiam no, cov nqi ntshiab benzene tseem nyob ruaj khov, Aniline tus nqi tau nce 70 $ / t, Cyclohexylamine nqi tau nce 40 $ / t, MIBK cov nqi poob 200 $ / t, Acetone tus nqi nce 20 $ / t thiab cov nqi ntawm lwm cov khoom siv raw khoom tau pib. ruaj khov.
Los ntawm Aniline, Cyclohexylamine thiab lwm yam raw khoom tus nqi rebounded, tag nrho cov lag luam tus nqi ntawm accelerators nres poob thiab stabilized. Tam sim no, lub downstream log tsheb lag luam pib tus nqi tau kho downward, qhov kev thov rau accelerators kuj poob. Tsis ntev los no tus nqi accelerator tau khiav ze rau tus nqi, txhawb nqa los ntawm Aniline tus nqi tseem nyob ruaj khov rau lub sijhawm, cov qauv tshwj xeeb tom ntej yuav tsum tau them sai sai rau qhov kev pib pib downstream thiab cov qauv ntawm cov khoom siv raw.
Antioxidant 6PPD thiab IPPD cov nqi txuas ntxiv poob rau lub lim tiam no. Tus nqi ntawm antioxidant TMQ hloov pauv me ntsis raws li kev txhawb nqa ntawm aniline. Vim tsis ntev los no poob rau hauv export ntim ntawm antioxidants, ua ke nrog tsis muaj kev thov los ntawm domestic downstream cov neeg muas zaub, nws yog ib qhov nyuaj rau thim rov qab qhov teeb meem uas cov khoom ntawm antioxidants ntau tshaj qhov xav tau rau lub sij hawm. Kev sib tw ua lag luam tam sim no yog khaus ntau dua, uas ua rau muaj kev sib txuas ntxiv ntawm cov txiaj ntsig ntawm cov tshuaj antioxidants. Nws cia siab tias lub lim tiam tom ntej cov tshuaj tiv thaiv antioxidant 6PPD thiab IPPD tseem muaj peev xwm ntawm kev txav mus los, antioxidant TMQ hauv aniline txhawb nqa kom muaj kev ruaj ntseg.
Cov khoom ntawm insoluble sulfur tseem txaus thiab tus nqi nyob ruaj khov; zinc oxide tus nqi tau poob me ntsis, thaum stearic acid, silane coupling cov neeg ua haujlwm thiab cov nqi nyob ruaj khov.