I-Abstract: Ukusetshenziswa Kwasekhayahydroxypropyl methylcelluloseEsikhundleni sokungeniswa okukodwa ekukhiqizweni kwe-PVC nge-polymerization degree yethulwa. Imiphumela yezinhlobo ezimbili ze-hydroxypropylylylylylt methylcellose kwizakhiwo ze-PVC ezine-polymerization degree ziyaphenywa. Imiphumela ikhombisile ukuthi kungenzeka ukuthi yathatha isikhundla se-hydroxyproppropylylylylylylylyl methy
Ama-PVC Resins aphezulu we-PVC abhekisela kuma-PVC Remins anezilinganiso eziphakathi ze-polymerization ezingaphezulu kwe-1,700 noma ngesakhiwo esivame ukuxhumeka phakathi kwezilinganiso ze-PVC ezinesilinganiso esiphakathi se-polymerization ka-2 500 [1]. Uma kuqhathaniswa ne-Resin evamile ye-PVC, i-High-Polymerization PVC Resin inokuqina okuphezulu, isethi encane yokushintshana, ukumelana nokushisa okuhle, ukumelana nokuguga, ukumelana nokukhathala nokuvimbela ukumelana. Kuyinto etholwayo ephelele yerabha futhi ingasetshenziswa kuma-strips okubopha uphawu ezimotweni, izintambo namakhekhe, ama-caneters wezokwelapha, njll. [2].
Indlela yokukhiqiza ye-PVC enezinga eliphakeme le-polymerization ikakhulukazi ukumiswa kwe-polymerization [3-4]. Ekwenziweni kwendlela yokumiswa, i-distrantint i-ejenti ebalulekile ebalulekile, futhi uhlobo lwayo kanye nenani kuzothinta ngqo ukwakheka kwezinhlayiya, ukuhlukaniswa ngosayizi wezinhlayiyana, kanye nokwakhiwa kwepulasitiki kwe-PVC Resin eqediwe. Izinhlelo ezisetshenziswayo ezisetshenziswayo ziyizinhlelo ze-polyvinyl Alcohol kanye ne-hydroxypropyll methylcellulose kanye ne-polyvinyl Alcohol composite amasistimu wokuhlakazeka, futhi abakhiqizi basekhaya basebenzisa kakhulu le [5].
1 izinto zokusetshenziswa eziphambili ezilinganayo kanye nokucaciswa
Izinto zokusetshenziswa eziphambili nokucaciswa okusetshenziswe esivivinyweni zikhonjiswa etafuleni 1. Kungabonakala etafuleni 1 ukuthi i-hydroxypropyllose yasekhaya ekhethiwe i-hydroxcelloppropyllose methylcellulose, enikeza imfuneko ye-methylcellulose engenisiwe kulokhu iphepha.
2 Ukuqukethwe kokuhlola
2. 1 Ukulungiswa kweHydroxypropylllylylylylylylylyll methylcellulose solution
Thatha inani elithile lamanzi e-deionized, ulifake esitsheni bese usishisa ku-70 ° C, bese kancane kancane engeza i-hydroxypropylylylylylylylylkylkylkyr methylcellulose ngaphansi kokuvuselelwa njalo. I-cellulose intanta emanzini ekuqaleni, bese kancane kancane ihlakazwa kuze kube yilapho ixubene ngokulinganayo. Pholisa ikhambi levolumu.
Ithebula 1 izinto zokusetshenziswa eziphambili ezimpunga kanye nokucaciswa kwazo
| IGAMA LOKUFUNDA | Ukucacisa |
| UVinyl Chloride Moner | Ikhwalithi ye-Score≥99. 98% |
| Amanzi Ahlanganisiwe | I-Courtiving≤10. I-0 μs / cm, i-PH VAIT 5. 00 kuye ku-9. 00 |
| Polyvinyl atshwala a | Degree alfolflisson degree 78. I-5% kuya ku-81. I-5%, okuqukethwe kwe-ASH. I-5%, IQINISEKISO LOKUQALA5. 0% |
| I-Polyvinyl Alcohol b | Iziqu ze-Alfolfollisn 71. 0% kuya ku-73. I-5%, i-Viscosity 4. 5 kuya ku-6. 5MPA S, Vulatile Pre khasi5. 0% |
| I-Polyvinyl Alcohol C | I-Alfolfolksnisn Degree 54. 0% kuya ku-57. 0%, I-Viscosity 800 ~ 1 400MPA S, Okuqukethwe okuqinile 39. I-5% kuya ku-40. 5% |
| I-hydroxypropyll methylcellulose a | I-Viscocity 40 ~ 60 MPA S, Methoxyl Mass Fraction 28% ~ 30%, Hydroxypropyl Mass Fraction 7% ~ 12%, umswakama ≤5. 0% |
| I-Hydroxyproppropyll methylcellulose b | I-Viscocity 40 ~ 60 MPA S, Methoxyl Mass Fraction 28% ~ 30%, Hydroxypropyl Mass Fraction 7% ~ 12%, umswakama ≤5. 0% |
| I-BIS (2-EthylHexy perxoxydicarbonactonate) | Ingxenyenamba enkulu [(45 ~ 50) ± 1]% |
2. 2 Indlela yokuhlola
Ku-10 L yedivayisi encane yokuhlola, sebenzisa i-hydroxyproppropyllylylylylylylylykyl methyl turmulaose ukwenza izivivinyo zeBetchmark ukunquma ifomula eyisisekelo yokuhlolwa okuncane; Sebenzisa i-hydroxypropyllylylylylylylysylylylylys metrulose ukufaka esikhundleni se-hydroxyproppropyllyllopylylylk methys angenise ukuhlolwa; Imikhiqizo ye-PVC Resin ekhiqizwa yi-hydroxypropproppropylykyl methyl aqhathaniswa nokutadisha amandla okubuyiselwa kwe-hydroxyproppropylylylylylylyl. Ngokwemiphumela yokuhlolwa okuncane, ukuhlolwa kokukhiqiza kwenziwa.
2. 3 Izinyathelo zokuhlola
Ngaphambi kokuphendula, hlanza i-polymerization kettle, vala i-valve engezansi, engeza inani elithile lamanzi asetshenzisiwe, bese ungeza abahlakazekile; Vala isembozo se-kettle, vacuemize ngemuva kokudlula kuhlolo lokuhlolwa kwe-nitrogen, bese ufaka i-vinyl chloride moner; Ngemuva kokuvuselelwa okubandayo, engeza umsunguli; Sebenzisa amanzi ajikelezayo ukukhulisa izinga lokushisa ku-kettle ekushiseni okusheshayo, bese wengeza isixazululo se-ammonium bicarbonate ngesikhathi esifanele ngesikhathi senqubo yokuphendula; Lapho ingcindezi yokuphendula yehla kumfutho echazwe kwifomula, engeza i-ejenti enqunyelwe kanye ne-ejenti e-decouming, futhi khipha umkhiqizo ophoqelekile we-PVC Resin etholwe nge-centrifugation futhi ukomisa, futhi ehlehliswe ukuhlaziywa.
2. 4 Izindlela zokuhlaziya
Ngokwezindlela ezifanele zokuhlola ku-Enterprise Standard Q31 / 0116000823C002-2018, Inombolo yokuvunyelwa, ukuvela kwamanzi (kufaka phakathi amanzi) kanye ne-100 pvc resin ye-PVC Resin eqediwe yahlolwa futhi ihlaziywe; Ubukhulu obujwayelekile bezinhlayiyana we-PVC Resin wahlolwa; I-morphology yezinhlayiya ze-PVC resin yaqashelwa kusetshenziswa isimangaliso se-elektroni scann.
Imiphumela emi-3 nengxoxo
3. 1 Ukuhlaziywa kokuqhathanisa kwekhwalithi yamabhendi ahlukene we-PVC Resin ku-Polymerization encane
Cindezela 2
Ithebula 2 imiphumela yamabheji ahlukene wokuhlolwa okuncane
| Banjwayembe | Hydroxypropyl methyl cellulose | Ubuningi obubonakalayo / (G / ML) | Isilinganiso sezinhlayiyana zezinhlayiyana / μm | I-Viscosity / (ML / G) | Ukumuncwa kwe-prosistic kwe-100 g PVC resin / g | Udaba oluguquguqukayo /% |
| 1# | Ngenisa ezweni | 0.36 | Umfana no-180 | 195 | 42 | 0.16 |
| 2# | Ngenisa ezweni | 0.36 | 175 | 195 | 42 | 0.20 |
| 3# | Ngenisa ezweni | 0.36 | 182 | 195 | 43 | 0.20 |
| 4# | -Silwane esifuyiweyo | 0.37 | 165 | 194 | 41 | 0.08 |
| 5# | -Silwane esifuyiweyo | 0.38 | 164 | 194 | 41 | 0.24 |
| 6# | -Silwane esifuyiweyo | 0.36 | I-167 | 194 | 43 | 0.22 |
Kungabonakala kusuka kuThebula 2: Ubukhulu obubonakalayo, Inombolo yokubonana nepulasitiki ukumuncwa kwepulasitiki kwe-PVC Resin etholakele kusondele kakhulu ngokusebenzisa iselula ehlukile yokuhlolwa okuncane; Umkhiqizo we-resin otholwe ngokusebenzisa ifomu le-methylcellulose ye-methylcellulose yasekhaya elijwayelekile usayizi wezinhlayiyana omncane omncane.
Umdwebo 1 ukhombisa izithombe ze-sem yemikhiqizo ye-PVC resin etholwe ngokusebenzisa i-hydroxyprosel perk methylcellulose ehlukile.
(1) -I-Hydroxypropyll methylcellulose
(2) -Hulumeni we-hydroxypropyll methylcellulose
Fig. I-1 SEM ye-Resins ekhiqizwe ku-10-L polymerizer phambi kwe-hydroxypropproppropylylk methy
Kungabonakala kusuka kuMdwebo 1 ukuthi izinhlaka zezindawo ze-PVC resin ezikhiqizwe ngabahlukanisi abahlukahlukene be-cellulose bafana.
Ukufingqa, kungabonakala ukuthi i-hydroxyproppropyllose yasekhaya ehlolwe kuleli phepha inenhle yokufaka esikhundleni se-hydroxcellulose engenisiwe.
3. 2 Ukuhlaziywa kokuqhathanisa kwekhwalithi ye-PVC resin nge-polymerization degree ephezulu ekuhlolweni kokukhiqiza
Ngenxa yezindleko eziphakeme kanye nengozi yokuhlolwa kokukhiqiza, uhlelo oluphelele lokubuyisela kokuhlolwa okuncane alunakufakwa ngqo. Ngakho-ke, uhlelo lokukhula kancane kancane ingxenye ye-hydroxcellopyllose yasekhaya efomula efomula kufomula. Imiphumela yokuhlola ye-batch ngayinye ikhonjiswa kuThebula 3. Kubonisiwe.
Imiphumela yokuhlolwa kweThebula 3 yamabhethri ahlukene wokukhiqiza
| Banjwayembe | M (I-Domedy Domeriedydypypropyll methyl celtuleose) | Ubuningi obubonakalayo / (G / ML) | Inombolo ye-Viscosity / (ML / G) | Ukumuncwa kwe-prosistic kwe-100 g PVC resin / g | Udaba oluguquguqukayo /% |
| 0# | 0: 100 | 0.45 | 195 | 36 | 0.12 |
| 1# | 1.25: 1 | 0.45 | 195 | 36 | 0.11 |
| 2# | 1.25: 1 | 0.45 | 195 | 36 | 0.13 |
| 3# | 1.25: 1 | 0.45 | 195 | 36 | 0.10 |
| 4# | I-2.50: 1 | 0.45 | 195 | 36 | 0.12 |
| 5# | I-2.50: 1 | 0.45 | 195 | 36 | 0.14 |
| 6# | I-2.50: 1 | 0.45 | 195 | 36 | 0.18 |
| 7# | 100: 0 | 0.45 | 195 | 36 | 0.11 |
| 8# | 100: 0 | 0.45 | 195 | 36 | 0.17 |
| 9# | 100: 0 | 0.45 | 195 | 36 | 0.14 |
Kungabonakala kusuka kuThebula 3 ukuthi ukusetshenziswa kwe-hydroxcellopyprosel yasekhaya kwandiswe kancane kancane kuze kube yilapho wonke ama-hydroxyproppropyll methylcellulose methylcellulose angeniswe esikhundleni se-hydroxcellulose angenisiwe engenisiwe. Izinkomba eziphambili ezinjengokumuncwa kwezosimo nokubukeka kungenakushintshana akuzange kuguqukele, okubonisa ukuthi i-hydroxypropprosel methylcellose akhethiwe leli phepha lingathatha indawo ye-hydroxcellulose engeniswe esikhundleni.
4 Isiphetho
Ukuhlolwa kwekhayahydroxypropyl methyl celluloseKu-10 L yedivaysi encane yokuhlola ekhombisa ukuthi kungenzeka ukuthi ithambekele esikhundleni sokungeniswa kwe-hydroxyproppropylylterlylylylyls Imiphumela yokuhlolwa kokukhiqizwa kokukhiqiza ibonisa ukuthi i-Hydroxypropypropyllylylysypropyl isetshenziselwa ukukhiqizwa kwe-PVC Resin, izinkomba zekhwalithi eyinhloko ye-PVC Resin eqediwe kanye ne-hydroxyproppropylylylylyl methyl. Njengamanje, intengo yeselula yasekhaya emakethe iphansi kunaleyo ye-cellulose engenisiwe. Ngakho-ke, uma kusetshenziswa iselula yasekhaya ekukhiqizweni, izindleko zezinzuzo zokukhiqiza zingancishiswa kakhulu.
Isikhathi sePosi: APR-25-2024