Abstract: Daim ntawv thov ntawm domestic hydroxyprropyil metreylropeno met ntawm capport ib qho rau cov khoom siv ntawm pvc nrog qib siab polymerization tau qhia. Qhov cuam tshuam ntawm ob hom ntawm hydroxypropyl methylcellose ntawm cov khoom ntawm PVC nrog cov qib siab polymerances tau tshawb xyuas. Cov txiaj ntsig tau pom tias nws tau ua rau hloov pauv hauv HydroxyPropyl methylopy cellulose rau imported ib.
Cov qib siab-ntawm-polymerization PVC Resins xa mus rau cov qauv nruab nrab ntawm cov qauv ntawm cov qauv ntawm 1,700 lossis nrog ib qho nruab nrab ntawm polymerization ntawm 2,500 [1]. Piv nrog dog dig pvc resin, High-polymerization PVC Resin muaj lub siab resilist, kev tiv thaiv zoo, nkees ua hauj lwm zoo thiab hnav tsis kam. Nws yog qhov zoo tagnrho yas yas thiab tuaj yeem siv rau hauv cov tsheb sib khi, cov xov hlau thiab cov xaim hluav taws xob, thiab lwm yam. [2].
Txoj kev ntau lawm ntawm PVC nrog qib siab ntawm polymerization yog feem ntau tau raug kawm polymerization [3-4]. Nyob rau hauv kev tsim cov qauv kev ncua, tus dispersant yog tus neeg sawv cev tseem ceeb, thiab cov khoom lag luam yuav cuam tshuam ncaj qha rau cov khoom siv ua tiav. Cov kev haus cawv feem ntau yog polyvinyl cawv tshuab thiab hydroxypropylulose thiab polyvinylcellulose dispersion tshuab, thiab cov tuam ntxhab cov tsev feem ntau siv cov tom kawg [5].
1 lub ntsiab ntawv raw thiab specifications
Cov khoom siv raw tseem ceeb thiab cov lus qhia tshwj xeeb siv nyob rau hauv cov ntawv xeem yog qhia hauv cov ntawv 1.
2 Cov ntsiab lus xeem
2. 1 Kev Npaj ntawm HydroxyPropyyl Methylulose Tshuaj
Siv qee qhov nyiaj ntawm cov dej deionized, muab tso rau hauv ib lub thawv thiab ua kom sov rau 70 ° C, thiab maj Ntxiv Hydroxypropylulose nyob rau hauv tas simpring. Lub cellulose floats rau dej thaum xub thawj, thiab tom qab ntawd maj mam tawg kom txog thaum nws yog tusyees sib xyaw. Txias cov tshuaj kom ntim.
Cov lus 1 lub ntsiab raw cov ntaub ntawv thiab lawv cov lus qhia tshwj xeeb
| Raw Khoom Lub Npe | Kev qhia tshwj xeeb |
| Vinyl chloride Monomer | Cov qhab nia zoo tau≥99. 98% |
| Desalinated dej | Kev tshwm sim≤10. 0 μs / CM, P yeej 5. 00 txog 9. 00 |
| Kev haus dej cawv polyvinyl a | Chocolate degree 78. 5% rau 81. 5%, hmoov tshauv cont lys0. 5%, Volatile teeb meem 15. 0% |
| Cwj Cawv B | Cawv cais kawm 71. 0% mus rau 73. 5%, Viscosity 4. 5 txog 6. 5MPA S, Volatile teeb meem 15. 0% |
| Collinylas C | Cawv cais tau 54. 0% rau 57. 0%, Viscosity 800 ~ 1 400MPA S, Cov Ntsiab Lus 39. 5% rau 40. 5% |
| Imported hydroxypropy methylcellulose a | Viscosity 40 ~ 60 mpa s, mexhoxyl mane feem 28% ~ 30%, Hydroxypropylal loj feem 7% ~ 12%, noo noo ≤5. 0% |
| Domestic HydroxyPropy nyhylcellose b | Viscosity 40 ~ 60 mpa s, mexhoxyl mane feem 28% ~ 30%, Hydroxypropylal loj feem 7% ~ 12%, noo noo ≤5. 0% |
| BIS (2-ethylhexyl peroxydicarbonate) | Pawg Feem Tsam [(45 ~ 50) ± 1] |
2. 2 Txoj Kev Ntsuas
Nyob rau ntawm 10 l me me kuaj ntaus ntawv hydroxypropyl cellulose los txiav txim cov qauv kev ntsuas ntawm qhov ntsuas me me; Siv domestic hydroxypropyl cellulose los hloov imported hydroxypropyl methylropy cellulose rau kev sim; Lub pvc cov khoom lag luam tsim tawm los ntawm txawv hydroxypropyl cellulose tau piv rau kev hloov chaw ntawm HydroxyPropyl methulose. Raws li cov txiaj ntsig ntawm kev kuaj me me, kev sim ntau lawm yog nqa tawm.
2. 3 Cov kauj ruam twv
Ua ntej cov tshuaj tiv thaiv, huv cov kettle polymerization, kaw ib qho ntawm cov dej desalinated, thiab tom qab ntawd ntxiv cov dispersant; Kaw cov hau ntawm lub lauj kaub, nqus plua plav tom qab dhau cov nitrogen siab sim, thiab tom qab ntawd ntxiv vinyl chloride monomer; Tom qab txias stirring, ntxiv tus pib; Siv cov dej sib xyaw kom nce qhov kub hauv lub lauj kaub rau cov tshuaj tiv thaiv kub, thiab ntxiv ammonium bicarbonate daws teeb meem thaum lub sijhawm ua haujlwm ntawm cov tshuaj tiv thaiv kab mob. Thaum cov tshuaj tiv thaiv kev tawm ntawm lub siab tau teev nyob rau hauv cov mis, ntxiv ib qho khoom siv tsis txaus siab, thiab tso tawm cov khoom lag luam tsis zoo ntawm PVC los ntawm centrifugation thiab kom qhuav, thiab piv txwv rau kev tsom xam.
2. 4 Txoj Kev Ntsuam Xyuas
Raws li kev ntsuas cuam tshuam nrog cov qauv kev lag luam Q31 / 011000823002-201-12300200230020023002002300002-2018, suav nrog cov dej viscatosity, suav nrog cov dej khov kho ntawm 100 resin tau sim thiab txheeb xyuas; Qhov nruab nrab particle loj ntawm PVC Resin tau sim; Cov morphology ntawm pvc resin hais tau pom siv lub vijtsam tshuab hluav taws xob.
3 tshwm sim thiab sib tham
3. 1 Kev txheeb xyuas qhov zoo ntawm cov khoom lag luam sib txawv ntawm PVC Resin hauv cov polymerization me me
Nias 2. Raws li cov qauv xeem uas tau piav qhia hauv 4, txhua pob ntawm cov me-teev ua tiav PVC Resin tau sim, thiab cov txiaj ntsig tau pom hauv Table 2.
Cov lus 2 qhov tshwm sim ntawm cov kab sib txawv ntawm kev kuaj me me
| Kem | HydroxyPropyyl Methyl cellulose | Pom meej ntom / (G / ML) | Nruab nrab particle loj / μm | Viscosity / (ml / g) | Vineserizer Kev nqus tau ntawm 100 g PVC Resin / g | Cov teeb meem tsis sib xws /% |
| 1# | Yuav khoom ntawm txawv teb chaws | 0.36 | 180 | 196 | 42 | 0.16 |
| 2# | Yuav khoom ntawm txawv teb chaws | 0.36 | 175 | 196 | 42 | 0.20 |
| 3# | Yuav khoom ntawm txawv teb chaws | 0.36 | 182 | 195 | 43 | 0.20 |
| 4# | Nyeg | 0.37 | 165 | 194 | 41 | 0.08 |
| 5# | Nyeg | 0.38 | 164 | 194 | 41 | 0.24 |
| 6# | Nyeg | 0.36 | 167 | 194 | 43 | 0.22 |
Nws tuaj yeem pom los ntawm rooj 2: Tus lej dav dav, tus naj npawb viscosity thiab cov yas resining ntawm tau txais cov partulose los ntawm kev siv cellulose txawv rau kev kuaj me me; Cov khoom lag luam uas tau los ntawm kev siv lub tsev hydroxyprropyl methylropulose mis nyuj nruab nrab me me yog me ntsis me dua.
Daim duab 1 qhia lub sem cov duab ntawm PVC cov khoom lag luam tau los ntawm kev siv cov me hydroxypropyl methylulose.
(1) -imported hydroxypropyl methylulose
(2) -domalistic hydroxypropyl methylcelulose
Daim duab. 1 sem ntawm cov nyiaj ua hauv 10-L polymerizer nyob rau hauv muaj nyob ntawm Hydroxypropyl methyl cellulose
Nws tuaj yeem pom los ntawm daim duab 1 tias cov txheej txheem saum npoo ntawm pvc cov khoom cob qhia ua los ntawm cov cellulose cellulose sib txawv.
Txhawm rau kom suav tau, nws tuaj yeem pom tias cov ntawv hydroxyprothyl me me ntawm kev hloov iydroxypropyl methelly.
3. 2 Kev txheeb xyuas qhov ua tau zoo ntawm PVC Resin nrog cov qib siab polymerization hauv kev kuaj ntau
Vim yog tus nqi siab thiab kev pheej hmoo ntawm cov kev sim ntau dua, kev hloov pauv hloov kho me me hloov tsis tuaj yeem thov ncaj qha. Yog li ntawd, lub tswv yim ntawm maj mam nce zuj zus kev sib npaug ntawm domestic hydroxypropylencenfulose hauv cov mis yog saws. Cov kev xeem ua tau ntawm txhua pob yog qhia hauv Table 3. Qhia.
Cov Lus 3 Kev Ntsuam Xyuas Cov Lus tshwm sim ntawm cov khoom sib txawv ntau lawm
| Kem | M (domestic hydroxypropyl methyl cellulose):M (imported hydroxypropyl methyl cellulose) | Pom meej ntom / (G / ML) | Viscosity tooj / (ml / g) | Vineserizer Kev nqus tau ntawm 100 g PVC Resin / g | Cov teeb meem tsis sib xws /% |
| 0# | 0: 100 | 0.45 | 196 | 36 | 0.12 |
| 1# | 1.25: 1 | 0.45 | 196 | 36 | 0.11 |
| 2# | 1.25: 1 | 0.45 | 196 | 36 | 0.13 |
| 3# | 1.25: 1 | 0.45 | 196 | 36 | 0.10 |
| 4# | 2.50: 1 | 0.45 | 196 | 36 | 0.12 |
| 5# | 2.50: 1 | 0.45 | 196 | 36 | 0.14 |
| 6# | 2.50: 1 | 0.45 | 196 | 36 | 0.18 |
| 7# | 100: 0 | 0.45 | 196 | 36 | 0.11 |
| 8# | 100: 0 | 0.45 | 196 | 36 | 0.17 |
| 9# | 100: 0 | 0.45 | 196 | 36 | 0.14 |
Nws tuaj yeem pom los ntawm rooj 3 uas kev siv ntawm domestic hydroxypropylulose almoxypropylulose hloov tau cov methroxelly methylropen. Cov ntsuas tseem ceeb xws li cov yas ua kom muaj kev tiv thaiv thiab siv hluav taws xob tau raug xaiv hauv daim ntawv no tuaj yeem hloov kho cov medroxypropylulose hauv kev tsim khoom.
4 TAWG
Kev sim ntawm domestic hydroxypropyl cellulose ntawm ib qho kev ntsuas me me qhia tias nws muaj qhov ua tau los hloov imported hydroxyprropyl methylropy cellulose; Cov khoom siv kev tsim khoom ntau lawm uas tau siv rau hauv Hydroxypropyl cellulose tau siv rau pvc cov khoom siv hydroxyprropyl tsis muaj qhov sib txawv. Tam sim no, tus nqi ntawm cellulose domestral nyob rau hauv kev ua lag luam yog qis dua li ntawm cellulose txawv. Yog li ntawd, yog tias cov cellulose hauv tsev yog siv rau hauv kev tsim khoom, tus nqi ntawm kev pab tsim tuaj yeem txo qis.
Lub sijhawm Post: NOV-01-2022