Ukuqhubekeka kolawulo xa ezinye izinto ziqulethwe kwiABS
I-ABS iqulethe i-PC, i-PBT, i-PMMA, i-AS, njl, njl. Ingasetyenziselwa i-PC / i-ABS alloy, ukuguqulwa kwe-ABS, njl. Kufuneka kuqatshelwe ukuba ayinakusetyenziselwa i-PVC / ABS alloy;
I-ABS iqulethe i-HIPS, ekwayintloko yentloko yezinto eziziisekondari. Esona sizathu siphambili kukuba umbandela awufezekanga. Ungaqwalasela ukukhetha isihambisi esifanelekileyo ukwenza ialloy PC;
I-ABS iqulethe i-PET okanye i-PCTA, ekwayintloko yentloko yezixhobo ezizisekondari. Esona sizathu siphambili kukuba izinto ezibonakalayo zibukhali kwaye umphumo wokongeza ii-tougheners awubonakali; Ke ngoko, akukhuthazwa ukuba uthenge izinto ezinjalo ukulungiselela ukuguqulwa kwezityalo.
Ukukhethwa kunye nokuLawulwa kweeArhente eziNcedisayo kulungiso lweABS olwenziwe ngokutsha
Kwii-alloys ze-PVC / ABS ezenziwe ngoku ngakumbi, kuyacetyiswa ukuba kusetyenziswe i-ABS emsulwa, kwaye uhlengahlengise izongezo ezihambelana nobungqongqo kunye nokusebenza okunxulumene noko;
Ukulungiselela ukumpompa kwakhona izinto ezingasasebenziyo ze-ABS, kufuneka kuthathelwe ingqalelo ukuba kuzonyuswe iiarhente zokuqinisa kunye nezomlilo ngokungqinelana nokusebenza kunye neemfuno zokumelana nomlilo. Kwangelo xesha, ubushushu bokusebenza buyehlisiwe ngokufanelekileyo;
Ukuqinisa i-ABS, sebenzisa iiarhente zokudibanisa ngokweempawu zomzimba kunye neemfuno, ezinje ngomgubo werabha ophezulu, i-EVA, i-elastomers, njl .;
Kwi-ABS ene-gloss ephezulu, ayisiyi kuqwalaselwa kuphela ukuhlanganiswa kwe-PMMA, kodwa ne-PC, i-AS, i-PBT, njl. Njl. Ukudibanisa kunokuqwalaselwa, kwaye kungongezwa izongezo ezifanelekileyo ukuvelisa izinto ezihlangabezana neemfuno;
Ukuveliswa kwezinto eziqinisiweyo ze-ABS, kungcono ukuba ungagqithisi nje umatshini kwezinye izinto ezihlaziyiweyo ze-ABS, ngenxa yoko iipropathi zomzimba ziya kuncitshiswa kakhulu, kwaye kungcono ukongeza ezinye izinto, ifayibha yeglasi kunye nezongezo ezinxulumene noko.
I-als ye-ABS / i-PC, kolu hlobo lwezixhobo, ikakhulu kukukhetha i-viscosity efanelekileyo ye-PC, isihambisi esifanelekileyo kunye nohlobo lwearhente yokuqinisa kunye nolungelelwaniso olufanelekileyo.
Isishwankathelo seengxaki eziqhelekileyo
Ungajongana njani nezinto zokwenza unyulo zeABS ukuqinisekisa umgangatho wezinto?
Kukho iindlela ezimbini ezisisiseko zokuchonga i-ABS, enye kukutshiza ngomshini kwaye esinye sisisombululo sokwenza electroplating. Indlela yonyango ngokubanzi kukususa umaleko wesingxobo sentsimbi ngokudibanisa isisombululo setyuwa esineasidi. Nangona kunjalo, le ndlela ubukhulu becala itshabalalisa ukusebenza kwe-B (butadiene) irabha kwizinto ze-ABS, kukhokelela kubukhuni obubi kunye nomgangatho obonakalayo wemveliso yokugqibela.
Ukuthintela esi siphumo, okwangoku zimbini iindlela ezamkelweyo: enye kukutyhoboza iindawo ze-ABS ezinyuliweyo kwaye uzinyibilike ngokuthe ngqo kwaye uzikhuphe, kwaye ucofe la maleko acociweyo ngokusebenzisa isikrini se-mesh ephezulu. Nangona ukusebenza kwento yokuqala kugcinwa ukuya kuthi ga kwinqanaba elithile, le ndlela ifuna amaxesha aphindaphindiweyo okucoca indawo yokucoca.
Kwiminyaka yakutshanje, besiphuhlisa ngamandla iindlela ze-pH isisombululo, kodwa isiphumo asonelisi. Esona siphumo sicace gca kukunyibilika komaleko obonwe ngombane kwisisombululo esingathathi hlangothi okanye esineasidi ngokufaka endaweni yentsimbi yenqwanqwa elinyuliweyo ukufumana i-ABS ediliziweyo yaphukile.
Nguwuphi umahluko phakathi kwezinto ze-ABS kunye nezinto ze-ASA? Ngaba ingaxutywa?
Igama elipheleleyo lezinto ze-ASA yi-acrylonitrile-styrene-acrylate terpolymer. Umahluko kwi-ABS kukuba icandelo leerabha yirabha ye-acrylic endaweni yerabadiene yerabha. Izinto ze-ASA zinokuzinza okungcono kwe-thermal kunye nokuzinza kokukhanya kunezinto ze-ABS ngenxa yokwakheka kwerabha, ke ithatha indawo ye-ABS kwizihlandlo ezininzi neemfuno eziphezulu zokuguga. Ezi zinto zimbini ziyahambelana ukuya kuthi ga kwinqanaba elithile kwaye zinokudityaniswa ngokuthe ngqo kumaqhekeza.
Kutheni izinto ze-ABS zaphukile, elinye icala limthubi elinye icala limhlophe?
Oku kubangelwa ziimveliso ze-ABS ezichazwe ekukhanyeni ixesha elide. Ngenxa yokuba irabha ye-butadiene (B) kwimpahla ye-ABS iya kutshintsha kancinci kancinci kwaye itshintshe umbala phantsi kwelanga lexesha elide kunye ne-oxidation ye-thermal, umbala wento leyo uya kuba tyheli kwaye ubemnyama ngokubanzi.
Yintoni ekufuneka ihlawulwe kutyunyuzwa kunye ne-granulation yamaphepha e-ABS?
I-viscosity yemathiriyeli yebhodi ye-ABS iphezulu kunaleyo yesiqhelo ye-ABS, ke ingqalelo kufuneka ihlawulwe ukwandisa ubushushu bokusebenza ngokufanelekileyo ngexesha lokuqhubekeka. Ukongeza, ngenxa yokuxinana kwesambuku seplanga, kufuneka yomiswe ngaphambi kokulungiswa, kwaye kungcono ukuba nenkqubo yokunyanzeliswa yokunyanzelwa ngexesha lokuqhubekeka ukuqinisekisa umgangatho kunye nemveliso.
Kufuneka ndenze ntoni ukuba izinto ze-ABS ziphinde zaphinda zasebenza ngaphandle kokoma ngexesha lenkqubo yokubumba inaliti?
Ukutshiza amanzi kumbumbulu wenaliti ye-ABS ikakhulu kungenxa yokoma okwaneleyo kwamanzi kwi-ABS. Ukugqitywa kwenkqubo ye-granulation sisona sizathu sokumiswa kwemathiriyeli. Izinto ze-ABS ngokwazo zineqondo elithile lokufunxa amanzi, kodwa oku kufuma kungasuswa ngumoya oshushu womoya. Ukuba amasuntswana ahlaziyiweyo akaphelanga kakuhle ngexesha lenkqubo yegranulation, kusenokwenzeka ukuba amanzi aseleyo ngaphakathi kumasuntswana aya kuhlala.
Kuthatha ixesha elide ukuba umswakama wome. Ukuba inkqubo yesiqhelo yokomisa iyamkelwa, izinto zokomisa aziyi koma ngokwendalo. Ukusombulula le ngxaki, kusafuneka siqale ngokunyibilikisa i-extrusion granulation kwaye siphucule iimeko zeemoto ngexesha lenkqubo yokunyibilika kokunyibilika ukunqanda ukufuma okushiyekileyo ngaphakathi kumasuntswana.
Ligwebu ngokufuthi livela kwi-granulation ye-ABS-retardant ABS enemibala ekhanyayo. Ungajongana njani nombala ongwevu?
Le meko ihlala yenzeka xa ubushushu besixhobo se-melt extrusion singalawulwa kakuhle. I-ABS ejwayelekile yokulahla ilangatye, izithako zayo ezinamadangatye anokumelana nobushushu. Ekuvuseleleni kwesibini, ulawulo lobushushu olungalunganga lunokubola ngokulula kwaye lubangele amagwebu kunye nombala. Le meko ixazululwa ngokubanzi ngokongeza isiqiniseko esithile sobushushu. Iindidi ezimbini eziqhelekileyo zezongezo ziyi-stearate kunye ne-hydrotalcite.
Siyintoni isizathu sokuba i-delamination emva kwe-ABS granulation kunye ne-arhente yokuqinisa?
Ukuqiniswa kwe-ABS, ayizizo zonke iiarhente eziqhelekileyo zokudibanisa kwimarike ezinokusetyenziswa. Umzekelo, i-SBS, nangona ulwakhiwo lwayo lunamalungu afanayo ne-ABS, ukungqinelana kwezi zimbini akulunganga. Inani elincinci lokongezwa linokuphucula ubunzima bezinto ze-ABS ukuya kuthi ga kwinqanaba elithile. Nangona kunjalo, ukuba umlinganiso wokongezwa ugqitha kwinqanaba elithile, ukwahlulwa kuya kwenzeka. Kuyacetyiswa ukuba uqhagamshelane nomthengisi ukufumana iarhente yokudibanisa.
Ngaba i-alloy ihlala iva nge-PC / ABS alloy?
Izinto zeAlloy zibhekisa kumxube owenziwe ngokudibanisa iipolima ezimbini ezahlukeneyo. Ukongeza kwiipropathi ezizodwa zezi zinto zimbini, lo mxube unezinye izinto ezintsha ezingenazo ezi zinto zimbini.
Ngenxa yolu ncedo, ii-alloys zepolymer liqela elikhulu lezinto kwishishini leplastikhi. I-PC / i-ABS alloy yinto ethile ekhethekileyo kweli qela. Nangona kunjalo, ngenxa yokuba i-PC / ABS alloy isetyenziswa ngokubanzi kumzi mveliso wombane, kulisiko ukusebenzisa ingxubevange ukubhekisa kwiPC / ABS alloy. Ukuthetha ngokungqongqo, i-PC / i-ABS alloy ingxubevange, kodwa ingxubevange ayisiyo-PC / ABS alloy kuphela.
Yintoni i-ABS ene-gloss ephezulu? Zeziphi iingxaki ekufuneka zithathelwe ingqalelo xa zisetyenzisiwe?
I-ABS ephezulu kakhulu iyingeniso ye-MMA (methacrylate) kwi-resin ye-ABS. Ngenxa yokuba i-gloss ye-MMA ingcono kakhulu kune-ABS ngokwayo, kwaye ubunzima bayo bendawo buphezulu kune-ABS. Ingakumbi ifanelekile kumacandelo amakhulu abiyelweyo anje ngeepaneli zepaneli ezomeleleyo zepaneli, iipaneli ze-TV ezinenkcazo ephezulu kunye neziseko. Okwangoku, umgangatho we-ABS ophezulu we-gloss uhluka, kwaye kufuneka uhlawule ukuqina, i-gloss kunye nobunzima bendawo xa uphinda usebenzise kwakhona. Ukuthetha ngokubanzi, izixhobo ezinobushushu obuphezulu, ubunzima obulungileyo kunye nokuqina kobuso obuphezulu kunexabiso eliphezulu lokurisayikilisha.
Umntu othile kwintengiso uthengisa izixhobo zeABS / PET. Ngaba ezi zinto zimbini zinokudityaniswa kunye? Uhlela njani?
Umgaqo osisiseko we-ABS / PET kwintengiso kukongeza inani elithile le-PET kwizixhobo ze-ABS kwaye uhlengahlengise ubudlelwane phakathi kwezi zibini ngokongeza into ehambelana nayo. Esi sisixhobo esenziwe ngabom kwinkampani yokuguqula ngenjongo yokufumana izinto ezinobume obutsha kunye neekhemikhali.
Akulunganga ukwenza olu hlobo lomsebenzi xa iABS iphinda isetyenziswe. Ngapha koko, izixhobo eziqhelekileyo kwinkqubo yokurisayikilisha sisisongeisi esinye, kwaye amandla okuxuba izixhobo aphantsi kakhulu kwi-twin-screw extruder esetyenziswe kwishishini lokuguqula. Kwinkqubo yokurisayikilishwa kwe-ABS, kungcono ukuba yahlulwe imathiriyeli ye-PET kwizinto ze-ABS.
Yintoni i-ABS bathtub material? Njani ukuba iphinde iphinde isetyenziswe kwakhona?
Izinto zokuhlambela ze-ABS eneneni zizinto ezidityanisiweyo ezikhutshiweyo ze-ABS kunye ne-PMMA. Ngenxa yokuba i-PMMA ine-gloss ephezulu yomphezulu kwaye ibonakalise ukuqina, kwinkqubo yokuvelisa ibhafu, umenzi uyaziqonda ukuba ukhupha umaleko wezinto ze-PMMA kumphezulu weprofayili yeABS ekhutshiweyo.
Ukurisayikilishwa kwakhona kolu hlobo lwezixhobo akufuneki kukhetho. Ngenxa yokuba izinto ze-PMMA kunye ne-ABS zineempawu ezifanelekileyo zokuhambelana, izinto ezityumkileyo zinokudityaniswa ngokuthe ngqo kwaye zinyibilike kwaye zikhutshwe. Ewe, ukwenzela ukuphucula ubunzima bezinto eziphathekayo, inxalenye ethile ye-arhente yokudibanisa kufuneka idibaniswe. Oku kungongezwa ngokweemfuno zemveliso ukusuka kwi-4% ukuya kwi-10%.
