I. Raw Material Composition: Qhov Tseem Ceeb Qhov Sib Txawv Ntawm Ib Leeg Resin thiab Composite Alloy
ASA (Acrylonitrile-Styrene-Acrylate Copolymer) yog ib qho khoom siv cob tsim los ntawm copolymerization ntawm peb lub monomers. Nws cov huab cua tsis kam yog txhim kho los ntawm acrylate roj hmab theem, thaum styrene thiab acrylonitrile xyuas kom nruj thiab ua tiav. Nws belongs rau ib qho - cov khoom siv copolymer. PC / ASA alloys, txawm li cas los xij, yog cov ntaub ntawv sib xyaw uas tsim los ntawm kev sib xyaw polycarbonate (PC) thiab ASA resin hauv qhov sib piv tshwj xeeb. Molecular-theem compatibility yog ua tiav los ntawm ntxaib- ntsia hlau extruders, tsim cov qauv sib xyaw ntawm "PC pob txha pob txha pob txha + ASA huab cua-cov plhaub tiv taus." Lub ntsiab chemical muaj pes tsawg leeg sib txawv ntawm ob cov ntaub ntawv txiav txim lawv cov kev ua tau zoo tom qab sib txawv.
II. Kev sib piv qhov tseem ceeb: Txhua tus muaj nws tus kheej lub zog
Mechanical Properties: ASA nthuav tawm lub zog tensile ntawm kwv yees li 40-50 MPa thiab qhov cuam tshuam rau lub zog ntawm 20-30 kJ / m², ua tau raws li cov qauv kev cai. Lub PC / ASA alloy, txhim kho los ntawm PC, ua tiav lub zog tensile ntawm 55-70 MPa thiab cuam tshuam lub zog (notched) ntawm 50-80 kJ / m², ua kom pom kev txhim kho kev cuam tshuam. Qhov tseem ceeb, ntawm qhov kub qis (-20 degree), PC / ASA khaws ntau dua 70% kev cuam tshuam lub zog, qhov ASA nyiam tuaj yeem ua rau tawg tawg. Tsis tas li ntawd, PC / ASA nthuav tawm flexural modulus 30% -50% siab dua ASA, muab cov qauv zoo tshaj plaws ntawm cov kabmob.
Weatherability thiab Chemical Resistance: Ob leeg muaj huab cua zoo heev. ASA ua tiav 5-8 xyoo tsis muaj daj lossis tawg los ntawm kev ruaj ntseg sab nraum zoov ntawm nws cov roj hmab acrylic. PC / ASA alloys tau txais ASA huab cua tiv thaiv thaum PC me ntsis txhim khu kev tiv thaiv rau cov kuab tshuaj organic (xws li cawv, roj cav). Txawm li cas los xij, lawv qhov kev tiv thaiv alkali tseem qis dua rau ASA, thiab kev cuam tshuam ntev rau qhov muaj zog alkali tej zaum yuav ua rau muaj kev ntxhov siab tawg.
Thermal Properties: ASA lub tshav kub deflection kub (HDT, 0.45MPa) thaj tsam ntawm 85-95 degree, nrog ib tug tas mus li kev pab cuam kub tsis tshaj 70 degree. PC / ASA alloys ua tiav HDT qhov tseem ceeb ntawm 110-130℃thiab qhov kev pabcuam txuas ntxiv ntawm 90-100 degree, ua rau lawv tsim nyog rau cov ntawv siv kub xws li cov khoom siv hauv tsheb.
III. Cov yam ntxwv ua: Moulding nyuaj thiab txheej txheem sib xyaw
ASA nthuav tawm cov kev ua haujlwm zoo nrog rau qhov ntsuas yaj (220℃/ 10kg) ntawm 10-20g / 10min. Nws tuaj yeem ua tiav los ntawm kev txhaj tshuaj molding, extrusion, tshuab moulding, thiab lwm txoj hauv kev, uas muaj qhov dav molding kub ntau yam (200{19}}240 degree) haum rau cov txheej txheem nyuaj thiab cov khoom nyias nyias. PC / ASA alloys pom qhov qis qis qis me ntsis (8-15g / 10min) vim PC lub siab viscosity, yuav tsum tau ua kom siab molding kub ntawm 230-260 degree. Qhov no xav tau ntau dua clamping quab yuam thiab kub tswj precision los ntawm cov khoom siv, thaum tseem ua rau muaj kev cuam tshuam rau kev ntxhov siab sab hauv. Kev txo qis yuav tsum tau hloov pwm kub (60-80 degree) thiab tom qab annealing kho. Tsis tas li ntawd, PC / ASA nthuav tawm qis qis qis (0.5% -0.8%) dua li ASA (0.8% -1.2%), muab qhov zoo tshaj qhov kev ruaj ntseg thiab tsim nyog rau kev tsim khoom siab.
IV. Application Scenarios: Precise Selection based on Performance Requirements
ASA, nrog rau nws cov huab cua tsis zoo thiab kev ua haujlwm yooj yim, yog siv dav hauv cov khoom siv sab nraum zoov (xws li, polycarbonate nplooj ntawv, laj kab), automotive sab nrauv Cheebtsam (xws li, iav vaj tse, qhov rooj tuav), thiab cov khoom siv hluav taws xob. Nws yog tshwj xeeb tshaj yog haum rau cov nqi - cov khoom rhiab heev uas tsis xav tau kev txhawb nqa siab -. PC/ASA alloys tsom daim ntawv thov kom muaj zog dua, tiv thaiv tshav kub, thiab qhov ruaj khov, xws li lub teeb lub taub hau tsheb, lub chaw nres tsheb them nyiaj, siab -cov tsheb ciav hlau sab hauv, thiab cov khoom siv hauv aerospace. Lawv qhov kev cuam tshuam tsis zoo thiab qhov kub siab ntev ua tau raws li qhov xav tau ntawm ib puag ncig, tab sis cov nqi yog 20% -40% siab dua ASA.
V. Tus nqi thiab tus nqi tag nrho-Kev txiav txim siab ua tau zoo
Los ntawm tus nqi raw khoom, PC resin (kwv yees li 25,000-30,000 / ton) yog tus nqi siab dua ASA resin (kwv yees li ¥ 18,000-22,000 / ton), uas ua rau cov nqi tsim khoom ntau dua rau PC / ASA alloys piv rau ASA. Thaum xaiv cov ntaub ntawv, kev ua tau zoo yuav tsum sib npaug ntawm cov nqi txwv: Rau cov khoom siv tsuas yog cov huab cua tiv thaiv thiab kev tsim qauv, ASA muab tus nqi siab - ua tau zoo. Rau cov ntawv thov uas xav tau lub zog siab, siab -kub tsis kam, thiab qhov tseeb qhov tseeb, qhov kev ua tau zoo ntawm PC / ASA alloys pom zoo rau tus nqi nce, tshwj xeeb tshaj yog nyob rau hauv siab - kawg kev tsim khoom uas lawv hloov tsis tau.
