Polycarbonate (PC) / acrylonitrile-butadiene-styrene (ABS) alloy ua ke cov kev ua tau zoo ntawm ob, ntawm ib sab, tuaj yeem txhim kho ABS thaum tshav kub kub, cuam tshuam lub zog thiab tensile lub zog, ntawm qhov tod tes, tuaj yeem txo cov yaj viscosity. ntawm lub PC, txhim kho kev ua tau zoo, txo cov khoom ntawm kev ntxhov siab, thiab txo cov nqi. Siv dav hauv tsheb, hluav taws xob, khoom siv hauv chaw ua haujlwm thiab lwm yam kev tsim khoom.
Yuav ua li cas qhov cuam tshuam lub zog ntawm cov copolymer tuaj yeem txhim kho?
PC / ABS alloy, thaum cov ntsiab lus ntawm PC siab, PC ncig los ntawm SAN, thiab styrene-acrylonitrile (SAN) resin muaj grafted roj hmab theem; Nyob rau tib lub sij hawm grafted roj hmab theem muaj SAN hais, roj hmab hais ua raws li ib tug qhov chaw ntawm concentration ntawm kev nyuaj siab, inducing ib tug loj tus naj npawb ntawm cov nyiaj thiab shear bands, ib tug loj tus naj npawb ntawm cov nyiaj thiab shear bands thiab kev loj hlob ntawm lub tiam ntawm ib tug. loj npaum li cas ntawm lub zog yog xav tau los ua kom muaj kev cuam tshuam ntawm cov khoom. kev ua tau zoo.
Cov khoom siv roj hmab inhibit qhov kev loj hlob ntawm silvering thiab ua rau nws txiav tsis tau tsim rau hauv kev puas tsuaj rau cov kab nrib pleb. Nrog rau qhov nce ntawm ABS cov ntsiab lus hauv kev sib xyaw, cov roj hmab theem cov ntsiab lus nce, cov khoom raug xa mus rau sab nraud ntawm cov roj hmab theem yuav dhau los ua qhov taw qhia thiab ua rau cov nyiaj thiab shear band, thaum cov roj hmab theem cov ntsiab lus thiab particle loj ncav cuag ib yam. tus nqi tuaj yeem raug txiav tawm raws sijhawm ntawm cov nyiaj, qhov cuam tshuam lub zog ntawm kev sib xyaw tuaj yeem txhim kho.
Vim li cas PC/ABS alloys xav tau compatibiliser?
Copolymer alloy tuaj yeem ua ke rau hauv kev ua tau zoo ntawm txhua yam khoom siv polymer, tab sis kev sib xyaw ua ke tsis sib xws tab sis vim yog qhov cuam tshuam ntawm cov adhesion tsis zoo thiab ua rau cov khoom tsis zoo, PC / ABS alloy yeej muaj PC / SAN / PB peb- theem complex micro-blending qauv, vim hais tias ntawm kev sib raug zoo ntawm solubility parameter, PC thiab SAN yuav dispersed nrog ib leeg, thiab muaj ib tug zoo adhesion, tab sis nrog compatibility ntawm cov roj hmab theem ntawm lub PB yog tsis zoo.
Yog li ntawd, txhawm rau txhawm rau ua kom muaj txiaj ntsig zoo ntawm PC / ABS alloys, nws yog ib qho tseem ceeb kom ua kom muaj kev sib raug zoo ntawm ob los ntawm kev ntxiv cov khoom thib peb.
Dab tsi yog cov khoom siv sib xyaw ua ke rau PC / ABS alloys?
1.ABS grafts
2.MAH cov tshuaj tiv thaiv muaj peev xwm nce
3.Acrylic acid los yog methacrylate copolymer
4.Amine-raws li SAN
5.Ob lub ntsiab lus capacitation
ABS, polyethylene (PE) thiab styrene-ethylene / butylene-styrene (SEBS) elastomers thiab lwm yam grafts, polystyrene (PS) / MAH copolymer, thiab copolymer ntawm acrylic acid thiab methacrylate muaj qee yam cuam tshuam rau kev sib raug zoo thiab tawv tawv ntawm PC / ABS alloys.
Cov txiaj ntsig ntawm compatibiliser rau qhov cuam tshuam cov khoom ntawm PC / ABS alloys.
PC / ABS alloys nyob rau hauv PB roj hmab theem nce, qhov cuam tshuam lub zog ntawm cov khoom sib xyaw tuaj yeem txhim kho, thiab thaum cov ntsiab lus ntawm ABS tau nce ntxiv thiab ntau dua 50%, cov txheej txheem sib xyaw yuav tshwm sim nyob rau hauv qhov sib txawv, ABS ua ib qho txuas ntxiv. theem, PC dhau los ua ib theem dispersed, uas yuav tsis conducive rau tiam ntawm shear band, qhov cuam tshuam lub zog ntawm cov khoom ntawm qhov tsis sib xws, poob.
Raws li cov ntaub ntawv qhia tau hais tias thaum lub PC / ABS zoo piv ntawm 7 / 3, lub alloy lub zog, fluidity, nqi, thiab lwm yam yuav ncav cuag ib tug zoo tshuav nyiaj li cas.
