Yuav ua li cas xaiv PVC cua sov stabilizer?

1. Piav qhia txog cov xwm txheej ntawm daim ntawv thov thiab cov kev cai ua tau zoo
1. Khoom Noj/Kho Mob
Siv cov tshuaj organotin stabilizers (mercaptan methyl tin), uas ua tau raws li FDA cov qauv thiab muaj pob tshab siab, tsim nyog rau cov khoom PVC pob tshab, cov yeeb yaj kiab ntim khoom noj, thiab lwm yam; Lwm txoj kev xaiv suav nrog calcium zinc composite stabilizers, uas yuav tsum tau ntawv pov thawj los ntawm REACH, LFGB, thiab lwm yam qauv kom ua tau raws li cov kev cai tsis muaj tshuaj lom.
2. Cov Khoom Siv Hauv Tsev/Kev Lag Luam
Cov kav dej tawv thiab cov phaj: Nws raug pom zoo kom siv cov tshuaj stabilizers ua los ntawm cov ntsev txhuas (tus nqi qis, ruaj khov thermal siab), tab sis yuav tsum tau them sai sai rau lawv cov kev txwv ib puag ncig.
2. Soj ntsuam cov cai ib puag ncig thiab kev nyab xeeb
1. Kev ua raws li ib puag ncig:
Cov tshuaj stabilizers uas tsis muaj txhuas thiab cadmium xws li calcium zinc composite lossis organotin stabilizers yog qhov yuav tsum tau muaj rau kev xa tawm mus rau European Union lossis cov chaw kho mob.
Tsis txhob siv cov tshuaj ua kom cov ntsev ua kom ruaj khov (muaj tshuaj lom ntau) thiab xaiv cov khoom uas ua raws li ROHS thiab REACH cov qauv.
2. Kev nyab xeeb ntawm kev sib cuag: Yuav tsum tau txheeb xyuas qhov nrawm ntawm cov khoom ruaj khov rau cov ntaub ntawv ntim khoom noj, thiab cov qauv sib xyaw ua ke siab yuav tsum tau nyiam dua.
3, Kev sib phim ua cov thev naus laus zis thiab lubrication system
1. Kev hloov kho ntawm cov txheej txheem ua tiav
Kev rho tawm / txhaj tshuaj molding: Cov tshuaj tin stabilizers yuav tsum tau ua ke nrog paraffin wax + calcium stearate lubrication system, thiab qhov ntau ntawm cov roj nplua nyeem sab nraud ntxiv yuav tsum tau tswj hwm ntawm 0.1-0.5 qhov kom tsis txhob muaj kev sib kis tsis sib xws;
Dov/tshuab pwm: Cov tshuaj calcium zinc composite stabilizers yuav tsum tau muab sib xyaw nrog cov roj nplua nyeem kub xws li polyethylene wax kom tiv thaiv kev yaj ntau dhau;
Kev ua kom zoo dua ntawm cov txheej txheem: Kev ua haujlwm kub siab (saum toj no 200 ℃) yuav tsum tau siv cov tshuaj tiv thaiv cua sov (xws li organotin, thiab lwm yam) kom txo qhov siab tshaj plaws ntawm lub zog yaj los ntawm ntau dua 15%. Cov khoom pob tshab yuav tsum tswj hwm qhov sib xws ntawm cov tshuaj tiv thaiv thiab cov resins kom tsis txhob muaj nag thiab nce ntxiv ntawm 37.
4, Kev txheeb xyuas thiab kev sim cov txheej txheem
Kev ntsuas kev ruaj khov ntawm thermal: Muab cov qauv PVC uas muaj stabilizer tso rau ntawm 80 ℃ rau 48 teev thiab saib seb xim hloov pauv li cas.
Kev sim ua kom tsis txhob muaj huab cua: Soj ntsuam qhov cuam tshuam ntawm UV los ntawm kev sim laus ntawm QUV, uas xav tau lub zog tensile ntawm> 85% tom qab 5000 teev.
Kev txheeb xyuas kev ua haujlwm ntawm cov txheej txheem: Siv lub torque rheometer los saib xyuas qhov fluidity ntawm cov yaj thiab ua kom zoo dua qhov sib piv ntawm cov roj nplua nyeem thiab cov stabilizer.