Abs sawv rau Acrylonitrile Butadiene Styrene Copolymer. Cov ntaub ntawv no yog qhov pheej yig, yooj yim rau cov txheej txheem, thiab yooj yim lees txais cov kev kho deg (xws li hlau plating). Nws yog cov khoom siv uas feem ntau siv, tab sis nws muaj lub zog tsawg thiab cov cua sov tsis zoo.
Dawb ABS yas muaj cov txiaj ntsig tshwj xeeb txawv dua rau lwm cov xim, ua rau nws muaj kev nyiam ntau hauv ntau daim ntawv thov. Dawb ABS qhuav qhia txog versal tshwj xeeb hauv cov tsos. Nws lub ntsej muag dawb tsis yog tsuas yog ntxuav thiab yooj yim tab sis kuj yooj yim sib haum rau ntau yam xim thiab tsim. Qhov kev hloov pauv no ua rau White AB zoo tagnrho rau cov khoom lag luam thiab cov cim thoob plaws ntau yam thiab cov tseev kom muaj. Dawb Abs muaj qis xim stigility xav tau. Piv rau qee cov xim dub dub, dawb ABS yog tsawg dua nquag ua xim sib txawv lossis fading thaum lub sijhawm tsim khoom thiab siv. Qhov no yog tshwj xeeb yog qhov tseem ceeb rau cov khoom uas yuav tsum tau ua kom ntev}}} sij hawm} Lub sij hawm vis dis aus, xws li cov khoom siv hauv tsev thiab tsheb kho tsheb.
Dawb ABS tseem muaj kev lom zem zoo heev, ua rau nws yooj yim sib tov rau lwm yam xim thaum ntau lawm. Qhov kev hloov kho no tso cai rau cov tuam txhab kom tau raws li cov xim yuav tsum tsis muaj kev cuam tshuam cov khoom siv hauv lub zog. Tus Dawb ABS Cov khoom ua haujlwm tau zoo dua cov cua kub ua kom sov, ua tau zoo qeeb qeeb. Qhov no ua rau nws haum ntau rau sab nraum zoov thiab siab {{{{}}} qhov kev thov kub, pab txhawb nqa cov khoom txuas ntxiv. Dawb ABS yas, muaj nuj nqis rau nws lub ntsej muag, xim ruaj khov, kev ua kom zoo nkauj, thiab cua sov tuaj yeem siv cov khoom siv hluav taws xob hauv tsev, thiab khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob. Nws muaj ntau dua kev yooj yim thiab muaj tswv yim kev ywj pheej hauv cov khoom tsim thiab tsim khoom.
Sij hawm dhau los, cov khauj khaum ntawm cov TV lossis cov cua txias tuaj yeem tsim kho cov xim daj, ib qho tshwm sim daj uas hu ua yellowing. Yellowing hais txog cov ntaub ntawv pov tseg thaum raug rau ntuj ci, kub, tshuaj lom neeg, noo noo, lossis vim suboptimal kev tsim cov txheej txheem. Thawj qhov laj thawj lus dag nyob rau hauv cov qauv molecular ntawm ABS, uas feem ntau muaj peb cov qauv txheej txheem: acrylonitrile (a), tab sis styrene (b), thiab STRYRENE (s), thiab STRYRENE (thiab STRYRENE).
Acrylonitrile (A): muab lub siab tawv, lub zog, tshav kub ua hauj, thiab tshuaj lom neeg tiv taus.
Butadiene (b): cais cov kev cuam tshuam kev tsis kam thiab tawv.
Styrene (s): muab cov khoom loj me me, ua kom muaj txiaj ntsig zoo, yooj yim ntawm kev ua, thiab txhim kho cov khoom hluav taws xob.
Cov khoom siv sib xyaw ntawm peb lub Cheebtsam ua absoplastic nrog cov kev ua tau zoo tshaj plaws {}} nyuaj, thiab tsis yeem. Txawm li cas los xij, lub xub ntiag ntawm butadiene (b) qhia qhov tsis txaus ntseeg: huab cua tsis tshua muaj neeg txom nyem. Thaum cia thiab siv, tshwj xeeb tshaj yog nyob rau sab nraud mob xws li lub teeb, kub, thiab oxygen, Abs yellows. ABS Cov kev ua daj ntawm ob ntu ntawm PS ntu hauv nws cov qauv molecular vim UV irradiation thiab oxidation. Ib zaug daj daj, nws yog qhov nyuaj rau restore whiteness. Styrene undergoes ntuj oxidation txawm nyob rau hauv lub teeb-} chaw ib puag ncig.
Cov plastics kuj tau raug kev laus, uas tau raug xa mus rau hauv kev lag luam thaum muaj kev saib tsis taus, muaj xim sib txawv ntawm cov txheej txheem no. Txawm hais tias lub tshuab cua txias yog ntsia hauv tsev lossis sab nraud, kev siv lub ntsej muag tu sab nrauv tuaj yeem nrawm kev laus thiab ua rau yellowing.
Txhawm rau daws cov tshuaj ntsuab hauv ABS cov khoom lag luam, cov kws tshawb fawb tau tsim UV - tiv taus cov roj yas hloov tshiab. Cov khoom siv no khaws cia ABS's Qhov xam tau zoo {{} kev cuam tshuam muaj zog, thiab yooj yim ntawm kev ua {}} Thaum txhim kho huab cua tiv thaiv huab cua. Nws muaj txiaj ntsig combats daj tau tshwm sim los ntawm sab nraud yam zoo li lub teeb, kub, thiab oxygen.
Huab cua - Tsis tau siv cov khoom siv ABS thiab cov huab cua tsis kam ua rau ultraviolet (UV) hluav taws xob. Cov ntaub ntawv no tuaj yeem tiv thaiv kev puas tsuaj ntawm UV hluav taws xob hauv sab nraum zoov, tiv thaiv kev yellowing lossis brittleness los ntawm lub sijhawm ntev.
Zoo heev UV tiv taus ntau dua txuas ntxiv cov kev pabcuam lub neej ntawm cov ntaub ntawv tsis muaj. Nyob rau hauv ib puag ncig ib puag ncig, UV hluav taws xob yog ib qho ntawm cov thawj qhov ua rau muaj kev laus. UV {{-}}}}} v v kis tau, ua kom muaj kev sib tw me me thiab hla} kev sib tw los ntawm ultraviolet hluav taws xob. Qhov no ua rau cov khoom lag luam uas ua los ntawm abs - nrog rau sab nraum zoov yas khoom- kom tswj tau lub hnub ci tuaj. Thiaj li, cov khoom lag luam tas li yog txuas ntxiv, thiab hloov tus nqi yog txo.
UV Yaus Kuj nthuav tawm cov kev siv ib puag ncig ntawm cov ntaub ntawv me. Cov ntawv thov sab nraum zoov yav dhau los txwv los ntawm UV concenitivity {}}} Tam sim no tau siv UV {{}}} tiv taus ABS. Qhov no tsis yog nthuav dav ABS kev lag luam tab sis kuj muab kev lag luam nrog cov kev xaiv cov kev xaiv ntxiv, kev tsav tsheb thiab kev txhim kho thoob plaws cov hauj lwm.
