Abstract: Te tono o te wharehydroxypropyl methylcelloseEngari ki te kawemai i tetahi ki te whakaputa PVC me te tohu o te polymerizatizatizatizatizatizer. Ko nga hua o nga momo e rua o te hydroxypropyl methylcellulose i runga i nga ahuatanga o te PVC me te tohu o te polymerizatizatizatization i tirotirohia. I whakaatuhia nga hua he mea taea ki te whakakapi i te hydroxypropy sydroxypropyl methyl hei kawemai i tetahi.
Teitei-o-polymerization Pvc Retins mo te PvC Retins me te taumata toharite o te polymerizatizatization i waenga i te ngota, ko te nuinga o te polymerizatizatizatizer o 2,500 [1]. I whakaritea ki te PVC noa Pvc noa, he nui te kaha o te Pvc Resin, he pai te whakaekenga o te riri, te aukati i te pakeke, te ngenge o te paoa me te aukati i te mate. He mea whakakapinga rapa pai ka taea te whakamahi i roto i nga miihini moana, nga waea me nga taura, nga hoia hauora, me etahi atu [2].
Ko te tikanga whakaputa o te PVC me te taumata tiketike o te polymerizatizatization ko te nuinga o te polymerization. I roto i te mahinga o te tikanga whakatārewatanga, ko te marara he kaihoko awhina nui, a ka pa te momo me te nui o te rahi o te matūriki, te tohatoha rahi rahi o te PVC kua oti. Ko nga punaha haumanu kua whakamahia ko te punaha waipiro polyvinyl me te methylcellulose me te miihini waipiro polyvinyl e whakamahi ana i te nuinga o te waa.
1 Nga taonga matua me nga whakaritenga
Ko nga rauemi mata matua me nga tohu i whakamahia i roto i te ripanga 1 Pepa.
2 ihirangi whakamatautau
2.. 1 Te whakarite i te otinga metylcellosel
Tangohia etahi wai whakaheke, whakauruhia ki roto i te ipu ka wera ki te 70 ° C, a ka uru haere te hydroxypropyl methylcellulose i raro i te whakaohooho. Ko te cellulose e rere ana i runga i te wai i te tuatahi, katahi ka marara noa atu ka tae noa ki te whakaranu. Whakamātauria te otinga ki te rōrahi.
Ripanga 1 Nga taonga matua matua me o raatau whakaritenga
| Ingoa rauemi Raw | Tautanga |
| Vinyl groriade monomer | Kounga seaste≥99. 98% |
| Te wai e rongoa ana | Whakahaerehia≤10. 0 μs / cm, pH uara 5. 00 ki te 9. 00 |
| Waipiro polyvinyl a | ALMALALEYSISED tohu 78. 5% ki te 81. 5%, ihirangi Ash≤0. 5%, he mea nui. 0% |
| Polyvinyl waipiro b | ALMALALELYISED tohu 71. 0% ki te 73. 5%, tirohia 4. 5 ki te 6. 5mba s, voolatile take. 0% |
| Polyvinyl waipiro c | ALMALALEYSISIGELIGE 54. 0% ki te 57. 0%, tirohia te 800 ~ 1 400mpa s, ihirangi totoro 39. 5% ki te 40. 5% |
| Pūmai i te hydroxypropyl methylcelllose a | Viscipoty 40 ~ 60 mpa s, te haangai papatipu mo te 28% ~ 30%, hydroxypropyl haangai 7% ~ 12%, makuku ≤5. 0% |
| Hydroxypropyl sompopropyl methylcelllose b | Viscipoty 40 ~ 60 mpa s, te haangai papatipu mo te 28% ~ 30%, hydroxypropyl haangai 7% ~ 12%, makuku ≤5. 0% |
| BIS (2-ethylhexyl peroxydicarbonate) | Te haangai papatipu [(45 ~ 50) ± 1]% |
2.. 2 Tikanga Whakamatau
I runga i te taputapu whakamatautau iti 10, whakamahia te celluxypropy methyl methyl hei whakahaere i nga whakamatautau tohu tohu hei whakatau i te tauira iti o te whakamatautau iti; Whakamahia te Cellroxypropy a-roto o te whare miihini ki te whakakapi i te cellroxypropy methyl methyl hei whakamatautau; Ko nga hua o te PVC Restin i hangaia e te rereke o te hydroxypropy methyl cellulose i whakaritea ki te ako i te kaha whakakapi o te hydroxypropyl hydroxypropyl celdroxrose. E ai ki nga hua o te whakamatautau iti, ka whakatutukihia te whakamatautau whakaputa.
2. 3 Nga waahanga whakamatautau
I mua o te tauhohenga, horoia te polymerization Kuttle, kati te hinu o raro, tapiritia etahi atu o te wai e kainga ana, ka tapiritia te marara; Katihia te taupoki o te kettle, te waatea i muri i te paahitanga o te whakamatautau o te hauota, ka tapirihia a Vinyl Chloride monomer; I muri i te whakaohooho makariri, whakauruhia te kaiwhakamatautau; Whakamahia te wai e pa ana ki te whakaara i te pāmahana ki te pāmahana tauhohenga, ka taapirihia te otinga o te hammonium hei whakatika i te uara pH o te punaha tauhohenga; I te wa e heke ana te pehanga urupare ki te pehanga kua tohua i roto i te tauira, tapirihia he kaihoko whakamutu me te kaihoroi kua oti i a PvC Resin i te centrifugation me te whakamaroke, me te whakatauira mo te tātari.
2.. 4 Nga Tikanga Tātaritanga
E ai ki nga tikanga whakamatautau e whai kiko ana i roto i te Paerewa Taiao Q31 / 0116000823C0028, ko te tau tirotiro, he mea totika (tae atu ki te wai kirihou o te 100 g pfc o te 100. Ko te rahi o te matūriki toharite o te pvc resin i whakamatauria; Ko te morphology o nga matūriki PVC ka kitea ma te whakamahi i te whaikorero a te karahipi.
3 nga hua me te whakawhitinga korero
3
Press 2. E ai ki te tikanga whakamatautau i whakaahuahia i te 4, kua oti ia ia te puranga o te PvC iti-paku kua whakaatuhia, ka whakaatuhia nga hua i te Ripanga 2.
Ripanga 2 Nga Hua o nga Pakanga rereke o te whakamatautau iti
| Paukena | Hydroxypropyl methyl cellulose | Te Whakanui / (G / ML) | Rahi matūriki toharite / μm | Tirohanga / (ml / g) | Te whakauru kirihou mo te 100 g Pvc Resin / g | Te take /% |
| 1# | Whakauru | 0.36 | 180 | 196 | 42 | 0.16 |
| 2# | Whakauru | 0.36 | 175 | 196 | 42 | 0.20 |
| 3# | Whakauru | 0.36 | 182 | 195 | 43 | 0.20 |
| 4# | Nō te kāinga | 0.37 | 165 | 194 | 41 | 0.08 |
| 5# | Nō te kāinga | 0.38 | 164 | 194 | 41 | 0.24 |
| 6# | Nō te kāinga | 0.36 | 167 | 194 | 43 | 0.22 |
Ka kitea mai i te Ripanga 2: Ko te ahua o te ahua o te tirohanga me te kirihou i te PvC Resin e tika ana ma te whakamahi i nga momo cellullose mo te whakamatautau iti; Ko te hua o te Resin i whiwhi ma te whakamahi i te hydroxypropyl o te whare hydroxypropyl o te whare whatylcellulose tauira ko te rahi matūriki toharite he iti ake te paku.
Ko te Whakaahua 1 e whakaatu ana i nga whakaahua SEM o nga hua o te PVC Resin i whiwhi ma te whakamahi i nga momo wai hydroxypropyl.
(1) -Ma -Tirohia te hydroxypropyl methylcellose
(2)-2) -Maypropyy hydroxypropyl methylcellulose
Rarangi. 1 sem o te hinu i whakaputaina i roto i te 10-l polymerizer i te aroaro o te waikawa o te waikawa methyl cellulose
Ka kitea mai i te Whakaahua 1 ko nga hanganga o te mata o nga matūriki PVC e hangaia ana e nga kaimara o te cellulose rereke.
Ki te kohi, ka kitea pea ko te hydroxypropyl hydroxypropyl o te whare ka whakamatauhia i roto i tenei pepa te whakakii i te whakakapi i te hydroxypropyl kawemainsemailfrose.
3. 2 Ko te tātaritanga whakatairite mo te kounga o te PVC Resin me te tohu o te polymerizatizatizatizatizatization i te whakamatautau whakaputa
Na te nui o te utu me te tupono o te whakamatautau whakatipu, kaore e taea te whakamahi tika i te kaupapa whakakapinga iti. Na reira, ko te kaupapa o te whakapiki haere i te waahanga o te hydroxypropyl o te whare hydroxypropyl i roto i te tātai. Ko nga hua whakamatautau mo ia puranga e whakaatuhia ana i te Ripanga 3. Whakaatuhia.
Ripanga 3 Nga hua o te whakamatautauranga o nga puranga whakaputa rereke
| Paukena | M (hydroxypropyl hydroxypropyl methyl cellulose): m (m (kawemai i te hydroxypropyl methyl cellulose) | Te Whakanui / (G / ML) | Tau Tirohanga / (ML / G) | Te whakauru kirihou mo te 100 g Pvc Resin / g | Te take /% |
| 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 |
Ka kitea mai i te Ripanga 3 ko te whakamahinga o te hydroxypropyl hydroxycroplose i tino piki haere tae noa ki te whakakapi i nga purongo o te hydroxypropyl o te whare hydroxyprolllose kawemai. Ko nga tohu matua penei i te haangai kirihou me te kitea i te nuinga o te waa, e whakaatu ana i te kohinga hydroxypropyl o te whare ka taea te whakakapi i te methylcroplulose i roto i tenei pepa.
4 Te Whakamutunga
Te whakamatautau o te wharehydroxypropyl methyl celluloseI runga i te 10 l o te taputapu whakamatautau iti e whakaatu ana kei a ia te mea tika ki te whakakapi i te cellroxypropy methyl cellulose; Ko nga hua whakamatautau whakakapinga whakaputa e whakaatu ana ko te Cellroxyprop homexyprose a-whare e whakamahia ana mo te PVC Ringa, nga tohu kounga nui o te pvc resin kua oti, kaore he rereketanga o te cellulose. I tenei wa, ko te utu o te cellulose o te whare i te maakete he iti ake i te waa o te cellulose kawemai. Na, ki te whakamahia te cellulose a-whare i roto i te mahi, ka taea te whakaheke i nga utu o nga taonga whakaputa.
Te wa tuku: Apr-25-2024