IHydroxypropyl Methyl Cellulose Ether (HPMC)

Iimbonakalo:
① Ngokugcinwa kakuhle kwamanzi, ukutyeba, i-rheology kunye nokunamathela, lukhetho lokuqala lwemathiriyeli ekrwada yokuphucula umgangatho wezinto zokwakha kunye nezinto zokuhombisa.
②Uluhlu olubanzi losetyenziso: ngenxa yamabanga apheleleyo, lunokusetyenziswa kuzo zonke izixhobo zokwakha umgubo. 
③Idosi encinci: 2-3 kg ngetoni nganye yomgubo wezinto zokwakha ngenxa yomgangatho ophezulu.
④ Ukumelana nobushushu obuphezulu: izinga lokugcinwa kwamanzi kwiimveliso ze-HPMC ngokubanzi liya kuncipha ngokunyuka kwamaqondo obushushu. Ngokwahlukileyo, iimveliso zethu zinokwenza udaka lube nesantya esiphezulu sokugcinwa kwamanzi xa ubushushu bufikelela kwi-30-40 ° C. Ukugcinwa kwamanzi okuzinzileyo nakwiqondo lokushisa eliphezulu kwiiyure ezingama-48.
⑤I-solubility efanelekileyo: kwiqondo lobushushu begumbi, yongeza amanzi kwaye ugxobhoze malunga nemizuzu emi-5, yiyeke ihlale imizuzu embalwa, emva koko uvuselele ukunyibilika. Ukupheliswa kukhawuleziswa kwi-PH8-10. Isisombululo sibekwe ixesha elide kwaye sinozinzo oluhle. Kwizinto zokuxuba ezomileyo, isantya sokusabalalisa kunye nokuchithwa kwamanzi kukulungele ngakumbi.

Indima ye-HPMC kwi-powder mortar eyomileyo

Kwi-powder mortar eyomileyo, i-methyl cellulose ether idlala indima yokugcina amanzi, ukuqina kunye nokuphucula ukusebenza kokwakhiwa. Ukusebenza kakuhle kogcino lwamanzi kuqinisekisa ukuba udaka aluyi kubangela isanti, umgubo kunye nokunciphisa amandla ngenxa yokunqongophala kwamanzi kunye ne-cement hydration engaphelelanga; Isiphumo sokuqina siphakamisa kakhulu amandla okwakhiwa kodaka olumanzi, kwaye ukongezwa kwe-methyl cellulose ether ngokucacileyo kunokuphucula i-viscosity emanzi yodaka olumanzi, kwaye ube nokubambelela kakuhle kwii-substrates ezahlukeneyo, ngaloo ndlela kuphuculwe ukusebenza kodaka olumanzi eludongeni kunye nokunciphisa. inkcitho.

Ngokuqhelekileyo, okukhona i-viscosity iphezulu, ngcono isiphumo sokugcina amanzi. Nangona kunjalo, ukuphakama kwe-viscosity, ukuphakama kwe-molecular weight ye-MC, kunye ne-solubility yayo iya kuncitshiswa, enokuthi ibe nefuthe elibi kumandla kunye nokusebenza kokwakhiwa kodaka. Ukuphakama kwe-viscosity, kubonakala ngakumbi impembelelo yokuqina kumdaka, kodwa ayilingani ngokuthe ngqo. Ukuphakama kwe-viscosity, i-viscous ngakumbi udaka olumanzi luya kuba. Ngexesha lokwakhiwa, kubonakaliswa njengokunamathela kwi-scraper kunye nokunamathela okuphezulu kwi-substrate. Kodwa akuncedi ukunyusa amandla esakhiwo sodaka olumanzi ngokwalo.

Iimpawu zomzimba kunye neekhemikhali:

1. Ukubonakala: umgubo omhlophe okanye omhlophe.
2. Ubungakanani be-particle: 80-100 ireyithi yokupasa i-mesh inkulu kune-98.5%; Ireyithi yokupasa ye-80 mesh yi-100%.
3. Ubushushu beCarbonization: 280-300 ° C
4. Ubuninzi obubonakalayo: 0.25-0.70 / cm3 (ngokuqhelekileyo malunga ne-0.5 / cm3), ubunzima obuthile 1.26-1.31.
5. Ubushushu bokutshintsha umbala: 190-200 ° C.
6. Uxinzelelo lomphezulu: I-2% isisombululo samanzi ngu-42-56dyn / cm3.
7. Inyibilika emanzini kunye nezinye izinyibilikisi, ezifana ne-ethanol/amanzi, ipropanol/amanzi, i-trichloroethane, njl. ngokomlinganiselo ofanelekileyo. Izisombululo ezinamanzi zisebenza kumphezulu. Ukucaca okuphezulu kunye nokusebenza okuzinzileyo. Iimpawu ezahlukeneyo zeemveliso zinamaqondo okushisa e-gel ahlukeneyo, kunye nokutshintsha kwe-solubility kunye ne-viscosity. I-viscosity ephantsi, i-solubility enkulu. Inkcazo eyahlukileyo ye-HPMC inomahluko othile ekusebenzeni, kwaye ukuchithwa kwe-HPMC emanzini akuchaphazeli ixabiso le-pH.
8. Ngokunciphisa umxholo we-methoxyl, i-gel point iyanda, i-solubility yamanzi ye-HPMC iyancipha, kwaye umsebenzi ongaphezulu uyancipha.
9. I-HPMC nayo ineempawu zokukwazi ukutyeba, ukuxhathisa ityuwa, isiqulatho sothuthu oluphantsi, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, ukubunjwa kwefilimu egqwesileyo, kunye noluhlu olubanzi lokuxhathisa i-enzyme, i-dispersibility kunye nokubambisana.

Injongo ephambili:

1. Ishishini lokwakha: Njengearhente yokugcina amanzi kunye ne-retarder kudaka lwesamente, lunokwenza udaka lumpompe. Isetyenziswe njenge-binder kwi-plaster, i-plaster, i-putty powder okanye ezinye izinto zokwakha ukuphucula ukusasazeka kunye nokwandisa ixesha lomsebenzi. Ingasetyenziselwa i-tile yokunamathisela, i-marble, i-plastic decoration, i-paste yokuqinisa, kwaye inokunciphisa inani le-samente. Ukusebenza kokugcina amanzi kwe-HPMC kuthintela i-slurry ekuqhekekeni ngenxa yokoma ngokukhawuleza emva kwesicelo, kwaye iphakamisa amandla emva kokuqina.
2. Ishishini lokuvelisa i-Ceramic: Isetyenziswa ngokubanzi njengesibophelelo ekwenzeni iimveliso ze-ceramic.
3. Ishishini lokugubungela: Isetyenziswe njenge-thickener, dispersant kunye ne-stabilizer kwi-coating industry, kwaye inokuhambelana kakuhle emanzini okanye kwi-solvents eziphilayo. Ingasetyenziswa kwisisusi sepeyinti.
4. Ukuprintwa kwe-Ink: Isetyenziswe njenge-thickener, dispersant kunye ne-stabilizer kwishishini le-inki, kwaye inokuhambelana kakuhle emanzini okanye kwi-solvents eziphilayo.
5. Iplastiki: isetyenziselwa ukwenza i-ejenti yokukhululwa, i-softener, i-lubricant, njl.
6. I-Polyvinyl chloride: Isetyenziselwa njenge-dispersant kwimveliso ye-polyvinyl chloride, kwaye iyona arhente encedisayo ekulungiseleleni i-PVC ngokumiswa kwe-polymerization.
7. Abanye: Le mveliso ikwasetyenziswa ngokubanzi kwisikhumba, iimveliso zephepha, ukugcinwa kweziqhamo kunye nemifuno kunye namashishini eempahla.

Indlela yokunyibilika kunye nokusetyenziswa:

1. Thatha i-1/3 okanye i-2/3 yomthamo ofunekayo wamanzi ashushu kwaye uyifudumeze ibe ngaphezu kwe-85 ° C, yongeza i-cellulose ukuze ufumane i-slurry yamanzi ashushu, uze udibanise umlinganiselo oseleyo wamanzi abandayo, qhubeka uvuselela, kwaye upholise. umxube obangelwayo.
2. Yenza utywala obufana nesidudu sikamama: qala wenze utywala be-HPMC kamama obunogxininiso oluphezulu (indlela iyafana nalapha ngasentla kwi-slurry), yongeza amanzi abandayo kwaye uqhubeke uvuselela de kube sobala.
3. Ukusetyenziswa okuxutywayo okomileyo: Ngenxa yokuhambelana okugqwesileyo kwe-HPMC, inokuxutywa ngokufanelekileyo kunye ne-samente, i-gypsum powder, i-pigments kunye ne-fillers, njl., kwaye ifezekise umphumo oyifunayo.

Ukupakisha, ukugcinwa kunye namanyathelo othutho:

Ipakishwe kwiplastiki yephepha okanye imigqomo yekhadibhodi efakwe iiplastiki ze-polyethylene, ubunzima be-net ngengxowa nganye: 25kg. Itywinwe ukuze igcinwe. Khusela elangeni, emvuleni kunye nokufuma ngexesha lokugcinwa nokuthuthwa.