Thaum tshav kub kub stabilizers (PVC) thiab lwm yam chlorine-muaj polymers. Methyl tin stabilizer yog amorphous siab polymer. Vim yog cov qauv tshwj xeeb ntawm PVC, nws yuav inevitably decompose nyob rau hauv qhov kub thiab txias, ua rau cov xim tsaus, txo lub cev thiab txhua yam khoom, thiab txawm poob tus nqi siv. Thaum tshav kub kub stabilizers yog tsim thiab tsim los daws qhov teeb meem no. Raws li cov qauv tshuaj sib txawv, cov cua sov stabilizers feem ntau muab faib ua cov ntsev ntsev, hlau soaps, organic tin, tsis tshua muaj ntiaj teb, organic antimony thiab organic auxiliary stabilizers. Cov khoom sib txawv muaj lawv tus kheej cov yam ntxwv ua tau zoo thiab tsim nyog rau ntau qhov chaw. Nyob rau hauv xyoo tas los no, kev lag luam PVC tau tsim sai heev, uas tau ua rau kev loj hlob sai ntawm kev lag luam kub stabilizer. Ntawm qhov tod tes, txoj kev xav ntawm cov hluav taws kub stabilizer yog ua ntau thiab zoo meej, uas muab cov kev mob kom tau txais cov khoom zoo tshaj plaws PVC; Ntawm qhov tod tes, cov khoom tshiab tsim nyog rau cov teb sib txawv tau tsim los tas li, tshwj xeeb tshaj yog vim muaj cov tshuaj lom ntawm cov ntsev ntsev thiab cov hlau hnyav. Yog vim li cas yog tias PVC ua lag luam ua ntej xaiv cov tsis muaj tshuaj lom thaum tshav kub kub stabilizers.
Nyob rau hauv kev tsim cov PVC ua lag luam, ntxiv rau yuav tsum tau cov cua sov stabilizers kom tau raws li thermal stability, lawv feem ntau yuav tsum muaj cov txheej txheem zoo, huab cua tsis kam, pib xim, lub teeb stability, thiab nruj raws li lawv cov tsw thiab viscosity. Nyob rau tib lub sijhawm, muaj ntau yam khoom ntawm PVC, nrog rau cov nplooj ntawv, kav, profiles, tshuab mouldings, txhaj moldings, ua npuas ncauj khoom, paste resins, thiab lwm yam. Feem ntau ntawm cov txheej txheem ntawm cov tuam txhab tsim PVC cov khoom yuav tsum tau tsim los ntawm lub cov tuam txhab lawv tus kheej. Yog li ntawd, kev xaiv cov cua sov stabilizers thaum lub sij hawm ua PVC yog qhov tseem ceeb heev. Organotin heat stabilizers yog cov cua sov stabilizers nrhiav tau tam sim no
Tin cov ntsiab lus (%) | 19 ± 0.5 |
Cov ntsiab lus sulfur (%) | 12 ± 0.5 |
Chromatic (Pt-Co) | ≤ 50 |
Lub ntiajteb txawj nqus (25 ℃, g / cm³) | 1.16-1.19 Nws |
Refractive index (25 ℃, mPa.5) | 1.507-1.511 |
viscosity | 20-80 |
Alpha cov ntsiab lus | 19.0-29.0 Nws |
Cov ntsiab lus ntawm Trimethyla | 0.2 |
daim ntawv | Colorless pob tshab oily kua |
Cov ntsiab lus tsis haum | <3 |
Cov khoom siv yas, roj hmab, cov yeeb yaj kiab yas, cov khoom siv polymer, cov khoom siv tshuaj, cov khoom siv hluav taws xob thiab hluav taws xob thiab cov nplaum, textile printing thiab dyeing, papermaking, inks, cleans agents;
1, zoo thermal stability;
2, zoo heev colorability;
3. Zoo sib xws;
4. Tsis yog-flammable.