PVC Qib HPMC
PVCQib HPMC Hydroxypropyl Methylcellulose yog cov khoom siv polymer uas muaj kev siv ntau tshaj plaws thiab kev ua tau zoo tshaj plaws ntawm txhua hom cellulose. Nws yog dav siv nyob rau hauv ntau yam kev lag luam teb thiab lub neej txhua hnub. Nws yeej ib txwm raug hu ua "kev lag luam MSG".
Hydroxypropyl methyl cellulose (HPMC) yog ib qho ntawm cov dispersants tseem ceeb hauv kev lag luam polyvinyl chloride (PVC). Thaum lub sij hawm ncua kev kawm ntawv polymerization ntawm vinyl chloride, nws muaj peev xwm txo tau cov interfacial nro ntawm VCM thiab dej thiab pab vinyl chloride monomers (VCM) yog uniformly thiab stably dispersed nyob rau hauv lub aqueous nruab nrab; tiv thaiv VCM cov tee dej los ntawm kev sib koom ua ke thaum ntxov ntawm cov txheej txheem polymerization; tiv thaiv cov khoom polymer los ntawm kev sib koom ua ke nyob rau theem kawg ntawm cov txheej txheem polymerization. Nyob rau hauv lub ncua kev kawm ntawv polymerization system, nws plays lub luag hauj lwm ntawm dispersion thiab kev tiv thaiv Lub luag hauj lwm ntawm stability.
Nyob rau hauv VCM ncua kev kawm ntawv polymerization, lub polymerization thaum ntxov thiab nruab nrab thiab lig polymer hais yog ib qho yooj yim rau coalesce thaum pib, yog li ib tug dispersion tiv thaiv tus neeg sawv cev yuav tsum tau ntxiv rau lub VCM suspension polymerization system. Nyob rau hauv cov ntaub ntawv ntawm ib txoj kev sib tov ruaj khov, hom, xwm thiab tus nqi ntawm cov dispersant tau dhau los ua qhov tseem ceeb los tswj cov yam ntxwv ntawm PVC hais.
Tshuaj Specification
| PVC qib HPMC Specification | HPMC60E ( 2910 ib) | HPMC65F( 2906 ib) | HPMC75K( 2208) |
| Gel kub (℃) | 58-64 : kuv | 62-68 : kuv | 70-90 ib |
| Methoxy (WT%) | 28.0-30.0 Nws | 27.0-30.0 Nws | 19.0-24.0 Nws |
| Hydroxypropoxy (WT%) | 7.0-12.0 Nws | 4.0-7.5 | 4.0-12.0 Nws |
| Viscosity (cps, 2% daws) | 3, 5, 6, 15, 50,100, 400,4000, 10000, 40000, 60000, 100000, 150000, 200000 | ||
Khoom Qib:
| PVC qib HPMC | Viscosity (cps) | Lus ceeb toom |
| HPMC60E50(E50) | 40-60 | HPMC |
| HPMC65F50 (F50) | 40-60 | HPMC |
| HPMC75K100 (K100) | 80-120 : kuv | HPMC |
Yam ntxwv
(1)Polymerization kub: Qhov kub ntawm polymerization hauv paus txiav txim siab qhov nruab nrab molecular hnyav ntawm PVC, thiab cov dispersant yeej tsis cuam tshuam rau qhov hnyav molecular. Lub gel kub ntawm cov dispersant yog siab tshaj qhov kub ntawm polymerization los xyuas kom meej lub dispersion ntawm polymer los ntawm dispersant.
(2) Particle yam ntxwv: particle txoj kab uas hla, morphology, porosity, thiab particle tis yog cov cim tseem ceeb ntawm SPVC zoo, uas muaj feem xyuam rau agitator / reactor tsim, polymerization dej-rau-roj piv, dispersion system thiab kawg hloov dua siab tshiab ntawm VCM, ntawm uas qhov system dispersion yog qhov tseem ceeb.
(3) stirring: Zoo li cov txheej txheem dispersion, nws muaj kev cuam tshuam zoo ntawm SPVC. Vim tias qhov loj me ntawm VCM cov tee dej hauv dej, qhov sib nqus nrawm nce thiab cov tee dej loj zuj zus tuaj; Thaum lub stirring ceev yog siab dhau lawm, cov tee dej yuav aggregate thiab cuam tshuam rau qhov kawg hais.
(4) Kev tiv thaiv kev tawg: Cov txheej txheem tiv thaiv tiv thaiv VCM cov tee dej nyob rau theem pib ntawm cov tshuaj tiv thaiv kom tsis txhob sib koom ua ke; cov PVC generated precipitates nyob rau hauv lub VCM droplets, thiab lub dispersion system tiv thaiv agglomeration ntawm cov tswj hais, thiaj li yuav tau txais qhov kawg SPVC hais. Lub dispersion system yog muab faib mus rau hauv lub ntsiab dispersion system thiab pab dispersion system. Lub ntsiab dispersant muaj high alcoholysis degree PVA, HPMC, thiab lwm yam, uas cuam tshuam rau tag nrho cov kev ua tau zoo ntawm SPVC; auxiliary dispersing system yog siv los txhim kho qee cov yam ntxwv ntawm SPVC hais.
(5) Lub ntsiab dispersion system: Lawv yog cov dej-soluble thiab stabilize lub VCM tee dej los ntawm kev txo cov interfacial nro ntawm VCM thiab dej. Tam sim no nyob rau hauv kev lag luam SPVC, cov dispersants tseem ceeb yog PVA thiab HPMC. PVC qib HPMC muaj qhov zoo ntawm kev siv tsawg, thermal stability thiab zoo plasticizing kev ua tau zoo ntawm SPVC. Txawm hais tias nws kim heev, nws tseem siv dav. PVC qib HPMC yog ib qho tseem ceeb ntawm kev tiv thaiv kev cuam tshuam hauv PVC synthesis.
Ntim
Tnws txheem ntim yog 25kg / nruas
20'FCL: 9 tuj nrog palletized; 10 tuj unpalletized.
40 'FCL:18ton nrog palletized;20ton unpalletized.
Cia:
Khaws cia rau hauv qhov chaw txias, qhuav hauv qab 30 ° C thiab tiv thaiv cov av noo thiab nias, vim tias cov khoom yog thermoplastic, lub sijhawm cia yuav tsum tsis pub tshaj 36 lub hlis.
Cov ntawv ceeb toom kev nyab xeeb:
Cov ntaub ntawv saum toj no yog ua raws li peb txoj kev paub, tab sis tsis txhob daws cov neeg siv khoom ua tib zoo xyuas tag nrho tam sim ntawm daim ntawv txais nyiaj. Txhawm rau kom tsis txhob muaj cov qauv sib txawv thiab cov khoom sib txawv, thov ua qhov kev sim ntau dua ua ntej siv nws.
Post lub sij hawm: Jan-01-2024