Kokubili ama-disperants nama-lubricant ayizithasiselo ezivame ukusetshenziswa ekufaniseni umbala wepulasitiki.Uma lezi zithasiselo zengezwa ezintweni ezingavuthiwe zomkhiqizo, zidinga ukwengezwa ezintweni ezingavuthiwe ze-resin ngesilinganiso esifanayo ekuqinisekiseni okuhambisana nombala, ukuze kugwenywe umehluko wombala ekukhiqizeni okulandelayo.
Izinhlobo zama-disperants yilezi: i-fatty acid polyureas, i-base stearate, i-polyurethane, insipho ye-oligomeric, njll. Ama-dispersants asetshenziswa kakhulu embonini ngamafutha.Ama-lubricant anezakhiwo ezinhle zokuhlakazeka, futhi angathuthukisa i-fluidity kanye nezakhiwo zokukhululwa kwesikhunta samapulasitiki ngesikhathi sokubumba.
Izinto zokugcoba zihlukaniswe zibe izithambisi zangaphakathi nezithambisi zangaphandle.Izithambisi zangaphakathi zinokuhambisana okuthile nama-resin, anganciphisa ukuhlangana phakathi kwamaketanga e-resin amangqamuzana, anciphise ukuncibilika kwe-viscosity, futhi athuthukise uketshezi.Ukuhambisana phakathi kwe-lubricant yangaphandle kanye ne-resin, inamathela ebusweni be-resin encibilikisiwe ukwakha ungqimba lwamangqamuzana okugcoba, ngaleyo ndlela kunciphise ukungqubuzana phakathi kwe-resin kanye nemishini yokucubungula.Izinto zokuthambisa zihlukaniswa ikakhulukazi izigaba ezilandelayo ngokuya ngesakhiwo sazo samakhemikhali:
(1)) Isigaba sokushisa esifana nopharafini, i-polyethylene wax, i-polypropylene wax, i-micronized wax, njll.
(2) Ama-acids anamafutha afana ne-stearic acid ne-base stearic acid.
3 .
(4) Izinsipho zensimbi ezifana ne-stearic acid, i-zinc stearate, i-calcium stearate, i-pot stearate, i-magnesium stearate, i-lead stearate, njll.
(5) Izinto zokugcoba ezidlala indima ekukhululweni kwesikhunta, njenge-polydimethylsiloxane (uwoyela we-methyl silicone), i-polymethylphenylsiloxane (uwoyela we-phenylmethyl silicone), i-polydiethylsiloxane (uwoyela we-ethyl silicone) njll.
Enqubweni yokubumba umjovo, lapho kusetshenziswa umbala owomile, ama-ejenti okwelapha angaphezulu njengamafutha amaminerali amhlophe namafutha okusabalalisa ngokuvamile ayengezwa ngesikhathi sokuxutshwa ukuze adlale indima yokukhangisa, ukuthambisa, ukusabalalisa kanye nokukhululwa kwesikhunta.Lapho ufaka umbala, izinto ezingavuthiwe kufanele futhi zengezwe ngokulingana okuphakathi kokuthunyelwa.Okokuqala engeza i-ejenti yokwelapha ebusweni bese usakaza ngokulinganayo, bese wengeza i-toner futhi usakaze ngokulinganayo.
Lapho ukhetha, ukumelana kwezinga lokushisa kwe-disperant kufanele kunqunywe ngokusho kwezinga lokushisa lokubumba lempahla eluhlaza yepulasitiki.Ngokombono wezindleko, ngokuyisisekelo, i-dispersant engasetshenziswa ekushiseni okuphakathi naphansi akufanele kukhethwe ukumelana nokushisa okuphezulu.I-disperant ephezulu yokushisa idinga ukumelana no-250 ℃.
Izithenjwa:
[1] Zhong Shuheng.Ukwakheka Kombala.I-Beijing: I-China Art Publishing House, ngo-1994.
[2] Iculo elithi Zhuoyi et al.Plastic izinto zokusetshenziswa kanye izithasiselo.I-Beijing: I-Science and Technology Literature Publishing House, ngo-2006.
[3] Wu Lifeng et al.I-Masterbatch User Manual.I-Beijing: Chemical Industry Press, 2011.
[4] U-Yu Wenjie et al.Izithasiselo zePlastiki kanye Nobuchwepheshe Bokuklama Ukuklama.Uhlelo lwesi-3.I-Beijing: Chemical Industry Press, 2010.
[5] Wu Lifeng.I-Plastic Coloring Formulation Design.Uhlelo lwesi-2.I-Beijing: Chemical Industry Press, 2009
Isikhathi sokuthumela: Jun-25-2022