Ukucubungula ukulawula lapho ezinye izinto ziqukethwe ku-ABS
I-ABS iqukethe i-PC, i-PBT, i-PMMA, i-AS, njll., Okulula kakhulu. Ingasetshenziselwa ingxubevange ye-PC / ABS, ukuguqulwa kwe-ABS, njll. Kumele kuqashelwe ukuthi ayinakusetshenziselwa ingxubevange yePVC / ABS;
I-ABS iqukethe i-HIPS, ebuye ibe yikhanda lezinto zokwengeza. Isizathu esiyinhloko ukuthi okokusebenza kuqhathaniswa nokuqhekeka. Ungacabanga ukukhetha isihambisi esifanele ukwenza i-PC alloy;
I-ABS iqukethe i-PET noma i-PCTA, ebuye ibe yikhanda lezinto ezisetshenziswayo. Isizathu esikhulu ukuthi izinto zokwakha ziqhekekile futhi umphumela wokwengeza ama-tougheners awubonakali; ngakho-ke, akunconywa ukuthenga izinto ezinjalo zezitshalo zokuguqula.

Ukukhethwa Nokulawulwa Kwama-Agent Asizayo Ekuguqulweni Kwe-ABS Esetshenzisiwe
Ngama-alloys e-PVC / ABS enziwe manje, kunconywa ukuthi kusetshenziswe i-ABS emsulwa, futhi ulungise izithasiselo ezihambisanayo ngokuqina nokusebenza okuhlobene;
Ngokuphompa kabusha izinto ezenziwe kabusha ezingasetshenziswa umlilo ze-ABS, kuyadingeka ukuthi kubhekwe ukuthi kungakhuliswa yini ama-toughening agents kanye nama-fire retardants ngokuya ngezidingo zokusebenza nezokumelana nomlilo zento leyo. Ngesikhathi esifanayo, izinga lokushisa lokucubungula liyancipha ngokufanele;
Ngokuqinisa i-ABS, sebenzisa ama-toughening agents ngokuya ngezakhiwo nezidingo zomzimba, njenge-powder enjoloba ephezulu, i-EVA, i-elastomers, njll .;
Kwi-ABS ecwebezela kakhulu, hhayi kuphela ukuhlanganiswa kwe-PMMA okungabhekwa, kepha futhi kungacatshangelwa ukuhlanganiswa kwe-PC, AS, PBT, njll., Futhi izithasiselo ezifanele zingakhethwa ukukhiqiza izinto ezihlangabezana nezidingo;
Ekhiqizweni kwezinto eziqinisiwe ze-fiber ze-ABS, kungcono ukuthi ungamane udlulise umshini wezinto ezithile eziqiniswe kabusha ze-ABS, ngakho-ke izakhiwo zomzimba zizoncishiswa kakhulu, futhi kungcono ukufaka izinto ezithile, i-fiber fiber nezinye izithasiselo ezihlobene.
Okwe-alloy ye-ABS / PC, yalolu hlobo lwezinto ezibonakalayo, ikakhulukazi ukukhetha i-PC viscosity efanele, isihlanganisi esifanele kanye nohlobo lwe-ejenti yokuqinisa kanye nokuhlangana okunengqondo.

Isifinyezo sezinkinga ezivamile

Ungayisingatha kanjani impahla ye-ABS electroplating ukuqinisekisa ikhwalithi yalokho okubhaliwe?
Kunezindlela ezimbili ngokuyisisekelo zokukhethwa kwe-ABS, eyodwa ukufafaza i-vacuum enye isisombululo se-electroplating. Indlela ejwayelekile yokwelashwa ukususa ungqimba lwensimbi ngokufaka ama-acid-base usawoti. Kodwa-ke, le ndlela ibhubhisa kakhulu ukusebenza kwerabha ye-B (butadiene) ezintweni ze-ABS, okuholele ekuqineni okungekuhle nekhwalithi ebonakalayo yomkhiqizo wokugcina.
Ukuze kugwenywe lo mphumela, njengamanje izindlela ezimbili zamukelwa kakhulu: eyodwa ukuchoboza izingxenye ze-ABS ezi-electroplated bese uzincibilikisa ngqo bese uzikhipha, bese uhlunga lezi zingqimba ezincibilikisiwe ngokusebenzisa isihlungi esine-mesh ephezulu. Yize ukusebenza kwangempela kokuqukethwe kugcinwa ngezinga elithile, le ndlela idinga imvamisa ephezulu yezikhathi zokufaka isihlungi.
Eminyakeni yamuva nje, besilokhu sithuthukisa ngamandla izindlela zokufaka isisombululo se-pH ephansi, kepha umphumela awugculisi. Umphumela osobala kakhulu ukuncibilikisa ungqimba oluqokiwe kwisisombululo esingathathi hlangothi noma esine-asidi ngokufaka insimbi kongqimba oluqokiwe ukuze kutholakale i-ABS ephukile iphukile.

Uyini umehluko phakathi kwezinto ze-ABS nezinto ze-ASA? Ingaxubeka?
Igama eligcwele lezinto ze-ASA yi-acrylonitrile-styrene-acrylate terpolymer. Umehluko osuka ku-ABS ukuthi ingxenye yenjoloba irabha ye-acrylic esikhundleni senjoloba ye-butadiene. Izinto ze-ASA zinokuzinza okungcono kokushisa nokuqina kunokukhanya kwe-ABS ngenxa yokwakheka kwenjoloba, ngakho-ke ingena esikhundleni se-ABS ezikhathini eziningi ngezidingo eziphakeme zokuguga. Lezi zinto ezimbili ziyahambelana ngezinga elithile futhi zingaxubana ngqo nezinhlayiya.

Kungani impahla ye-ABS iphukile, olunye uhlangothi luphuzi kanti olunye uhlangothi lumhlophe?
Lokhu kudalwa yimikhiqizo ye-ABS evezwe ekukhanyeni isikhathi eside. Ngenxa yokuthi iraba le-butadiene (B) ezintweni ze-ABS lizoya ngokuwohloka kancane kancane futhi lishintshe umbala ngaphansi kwelanga lesikhathi eside kanye ne-oxidation eshisayo, umbala wento ezoba phuzi futhi ube mnyama ngokubanzi.

Yini okufanele inakwe ekugayweni nasekuhlanganisweni kwamashidi e-ABS?
I-viscosity yezinto zebhodi le-ABS iphakeme kunaleyo ejwayelekile ye-ABS material, ngakho-ke kufanele kubhekwe ukunakekela izinga lokushisa lokucubungula ngokufanele ngesikhathi sokucubungula. Ngaphezu kwalokho, ngenxa yobuningi besibalo samapulangwe asezingeni eliphansi, idinga ukomiswa ngaphambi kokucutshungulwa, futhi kungcono ukuba nenqubo yokufunza okuphoqwayo ngesikhathi sokucubungula ukuqinisekisa ikhwalithi nokukhishwa komkhiqizo.

Yini okufanele ngiyenze uma izinto ze-ABS ezenziwe kabusha zingomi ngesikhathi senqubo yokubumba umjovo?
Ukuchaphazeleka kwamanzi ekubunjweni komjovo we-ABS ikakhulu kungenxa yokoma okwanele kwamanzi kwimpahla ye-ABS. Ukuqedwa kwenqubo ye-granulation yisizathu esiyinhloko sokomiswa kwento. Izinto ze-ABS uqobo zinezinga elithile lokumunca amanzi, kepha lo mswakama ungasuswa ngokomisa umoya oshisayo. Uma izinhlayiya ezenziwe kabusha zingakhathali kahle ngesikhathi senqubo ye-granulation, kungenzeka ukuthi amanzi asele ngaphakathi kwezinhlayiya azohlala.
Kuthatha isikhathi eside ukuthi umswakama wome. Uma inqubo ejwayelekile yokumisa yamukelwa, okomiswa ngeke kumile ngokwemvelo. Ukuxazulula le nkinga, kusadingeka siqale ngokuncibilikisa i-extrusion granulation futhi sithuthukise izimo zokukhipha ngesikhathi senqubo yokuncibilika kwe-extrusion ukugwema umswakama osalayo ngaphakathi kwezinhlayiya.

Igwebu livame ukuvela ku-granulation ye-ABS enemibala ekhanyayo. Ungabhekana kanjani nombala ompunga?
Lesi simo sivame ukwenzeka lapho izinga lokushisa kwemishini yokuncibilika kwe-extrusion lingalawulwa kahle. I-ABS ejwayelekile evimbela ilangabi, izithako zayo ezingamalangabi zinokumelana nokushisa okungekuhle. Ekululameni kwesibili, ukulawula okungafanele kokushisa kungabola kalula futhi kudale amagwebu nokuqhamuka kombala. Lesi simo ngokuvamile sixazululwa ngokungeza okuthile okusimamisa ukushisa. Izinhlobo ezimbili ezivamile zezithasiselo yi-stearate ne-hydrotalcite.

Siyini isizathu se-delamination ngemuva kwe-AB granulation kanye ne-ejensi yokuqinisa?
Ngokuqiniswa kwe-ABS, akuzona zonke izinto ezijwayelekile zokuqinisa imakethe ezingasetshenziswa. Isibonelo, i-SBS, yize isakhiwo sayo sinezingxenye ezifanayo ne-ABS, ukuhambisana kwalaba bobabili akulungile. Inani elincane lokwengeza lingathuthukisa ubunzima bezinto ze-ABS ngezinga elithile. Kodwa-ke, uma isilinganiso sokungezwa sidlula ileveli ethile, ukuhlukaniswa kuzokwenzeka. Kunconywa ukubonisana nomhlinzeki ukuthola i-ejenti yokuqinisa ehambisanayo.

Ngabe i-alloy ivame ukuzwakala nge-PC / ABS alloy?
Ingxubevange yezinto ibhekisela enhlanganisweni eyakhiwe ngokuxuba amapholima amabili ahlukene. Ngaphezu kwezakhiwo ezihlukile zezinto ezimbili, le ngxube inezici ezintsha ezingenazo.
Ngenxa yalolu lwazi, ama-alloys e-polymer ayiqembu elikhulu lezinto ezisetshenziswayo embonini yeplastikhi. Ingxubevange ye-PC / ABS yinto ethile ethize kuleli qembu. Kodwa-ke, ngoba i-PC / ABS alloy isetshenziswa kakhulu embonini kagesi, kuyisiko ukusebenzisa i-alloy ukubhekisa ku-PC / ABS alloy. Ngokweqiniso, i-PC / ABS alloy ingxubevange, kepha ingxubevange akuyona nje ingxubevange ye-PC / ABS.

Yini i-high-gloss ABS? Iziphi izinkinga okufanele zinakwe lapho zisetshenziswa kabusha?
I-ABS ecwebezela kakhulu ukufakwa kwe-MMA (methacrylate) ku-resin ye-ABS. Ngoba isicwebezelisi se-MMA singcono kakhulu kunese-ABS uqobo, nobulukhuni bayo bendawo buphakeme kakhulu kunobo be-ABS. Ikakhulukazi ifanele izingxenye ezinkulu ezibiyelwe ezinjengamapaneli we-TV anama-flat-panel, amaphaneli we-TV anencazelo ephezulu nezisekelo Njengamanje, ikhwalithi ye-ABS ephezulu ecwebezelayo iyahlukahluka, futhi udinga ukunaka ubunzima, isicwebezelisi nobulukhuni bento lapho isetshenziswa kabusha. Ngokuvamile, izinto ezinamanzi amaningi, ukuqina okuhle nobulukhuni obuphezulu zinenani eliphakeme lokusebenzisa kabusha.

Othile emakethe uthengisa izinto ze-ABS / PET. Ngabe lezi zinto ezimbili zingahlanganiswa nomunye? Ungahlunga kanjani?
Umgomo oyisisekelo we-ABS / PET emakethe ukwengeza ingxenye ethile ye-PET kuzinto ze-ABS futhi ulungise ukusondelana phakathi kwalaba ababili ngokungeza isihlanganisi. Lokhu kuyinto eyenziwa yinkampani yokuguqula ngamabomu ukuthola izinto ngezinto ezintsha zomzimba nezamakhemikhali.
Akufanelekile ukwenza lolu hlobo lomsebenzi lapho i-ABS isetshenziswa kabusha. Ngaphezu kwalokho, imishini ejwayelekile kunqubo yokuphinda isebenze kabusha iyisikulufa esisodwa, futhi amandla okuxuba imishini aphansi kakhulu kune-twin-screw extruder esetshenziswa embonini yokuguqulwa. Enqubeni yokusebenzisa kabusha i-ABS, kungcono ukuhlukanisa okokusebenza kwe-PET kokuqukethwe kwe-ABS.

Iyini impahla yokugeza ye-ABS? Kufanele isetshenziswe kanjani kabusha?
Izinto zokugeza ze-ABS empeleni ziyizinto ezihlanganisiwe ze-ABS ne-PMMA. Ngenxa yokuthi i-PMMA ine-gloss ephezulu futhi ibonise ukuqina, ngenkathi kukhiqizwa ubhavu, umenzi ngokucophelela ukhipha ungqimba lwezinto ze-PMMA ebusweni bephrofayili ekhishwe nge-ABS.
Ukwenza kabusha lolu hlobo lwezinto akudingi ukuhlunga. Ngoba izinto ze-PMMA ne-ABS zinezici ezinhle zokuhambisana, izinto ezichotshoziwe zingaxubeka ngqo futhi zincibilike futhi zikhishwe. Vele, ukuze kuthuthukiswe ukuqina kwento, ingxenye ethile ye-ejensi yokuqinisa idinga ukungezwa. Lokhu kungangezwa ngokuya ngezidingo zomkhiqizo kusuka ku-4% kuye ku-10%.