I-HPMC yezinto zokwakha ezenzelwe ama-gypsum

1. Isingeniso ku-HPMC
I-Hydroxypropyl Methylcellulose (HPMC) iyingxenye ebalulekile ye-polymer esetshenziswayo esetshenziselwa ukwakha, umuthi, ukudla, amakhemikhali nsuku kanye nezinye izinkambu. Kwenziwa kusuka kumakhembu wemvelo wemvelo aguqulwe ngamakhemikhali futhi ane-solubility enhle yamanzi, ukuqina, ukugcinwa kwamanzi, ukunqwabelana, ukunamathela, ukwakha amafilimu nokuthambisa izakhiwo. Ezintweni zokwakha, i-HPMC isetshenziswa kabanzi njengezengezo, ikakhulukazi ezintweni zokwakha ezenzelwe ama-gypsum.

2. Iqhaza le-HPMC ngezinto zokwakha ezenzelwe ama-gypsum
Izinto zokwakha ezenzelwe ama-gypsum, ezinjenge-gypsum putty, i-gypsum ngodaka nebhodi le-gypsum, kancane kancane zisetshenziswa kabanzi ngenxa yokumelana nomlilo, ukuphefumula kanye nezinto ezinobungane bemvelo. Ukwethulwa kwe-HPMC kungathuthukisa izakhiwo zomzimba nezokwakha zalezi zinto zokwakha, kubenza babe lula futhi bahlala isikhathi eside ngesikhathi sokusebenzisa, futhi banikeze ukubukeka okungcono.

2.1 Umphumela wokuqina
Umphumela wokuqina we-HPMC ungenye yemisebenzi yawo eyinhloko ezintweni zokwakha ezenzelwe ama-gypsum. Kwandisa kakhulu ukubonakala kwe-gypsum slurry, okwenza kube lula ukuphatha futhi kusebenze. Umsebenzi we-firener ungagcina izinto ezisekelwa yi-gypsum esimweni esifanayo esilinganayo ngesikhathi sokwakha, zinciphise ukwethala, zigweme izingqimba kanye nomphumela wokwakha.

2.2 Ukugcinwa kwamanzi
I-HPMC inezakhiwo ezinhle kakhulu zokugcina amanzi futhi inganciphisa ukulahlekelwa kwamanzi ngezinto zokwenziwa ezisekelwe ku-gypsum ngesikhathi senqubo yokulapha. Ukugcinwa kwamanzi kuyinto ebalulekile ekuqinisekiseni ukusebenza kwezinto ze-gypsum. Ukulahleka kwamanzi ngokweqile kuzodala lokho kusomile ngaphambi kwesikhathi, okuzothinta amandla nokusebenza kwe-bonding, futhi kungahle kuholele ekuqhekekeni. Ngokwengeza i-HPMC, izinto ze-gypsum zingagcina umswakama owanele isikhathi eside, ngaleyo ndlela zisize okuqukethwe ukuze kusola ngokona kanye nokwenza ngcono amandla kanye nekhwalithi ephezulu.

2.3 Thuthukisa ukusebenza kokwakha
I-HPMC ingathuthukisa futhi ukusebenza kokwakha kwezinto zokwakha ezisekelwe e-gypsum, ikakhulukazi ekuthuthukiseni ukusebenziseka. Inika i-slurry enhle Thixotropy futhi iqinisekise ukusetshenziswa okulula kwe-slurry ngesikhathi sokwakha. Umphumela wayo we-lubricucation futhi wenze ukwakhiwa kube bushelelezi, kunciphise ukungqubuzana phakathi kwamathuluzi nezinto zokwakha, futhi kuphinde kube ngcono ukusebenza kahle kanye nokusebenza kahle. Kokubili ukwakhiwa kwemanuwali kanye nokufafaza ngemishini, i-hpmc ingathuthukisa kakhulu induduzo yokusebenza.

2.4 Ukumelana nokudambisa
Ekwakhiweni okuthe mpo okunjengezindonga noma ophahleni, izinto ze-gypsum zithambekele ekuhlanganeni ngenxa yamandla adonsela phansi, ikakhulukazi lapho kwakha izimbambo ezinkulu. Izakhiwo ezikhulisa ukuqina kanye nokuqinisa isibopho ze-HPMC zingathuthukisa ngempumelelo ukumelana kwe-gypsum slurry, okwenza kube nokunamathela okuqinile ezindaweni ezibheke mpo futhi zilondoloze ukufana kwesimo nokuqina ngemuva kokwakhiwa.

2.5 Thuthukisa ukumelana nokuqhekeka
Izinto zokwenziwa ezisekelwe e-gypsum zingakhula imifantu ngenxa yokuhwamuka kwamanzi ngesikhathi senqubo yokomisa. Ukusebenza kokugcinwa kwamanzi kwe-HPMC akugcini nje ngokunweba isikhathi sokuvula sezinto ezibonakalayo ze-gypsum, kodwa futhi kunciphisa ukugcwala kwevolumu okubangelwa ukulahleka kwamanzi ngokweqile ngokunciphisa ukuvela kwemifantu kwangaphakathi, ukuthuthukisa ukuqina kokuqhekeka kanye nokuqinisa ukuqina nokuqina kwezinto ze-gypsum. Inkonzo yenkonzo.

3. Isebenzisa kanjani i-HPMC
Ezintweni zokwakha ezenzelwe ama-gypsum, inani lokungezwa le-HPMC livame phakathi kuka-0,1% no-1% wefomula ephelele. Ukusetshenziswa okuqondile kuyahlukahluka ngokuya ngezimo ezihlukile zohlelo kanye nezidingo zokusebenza. Isibonelo, uma isetshenziswa ku-gypsum putty, i-HPMC ikakhulukazi isetshenziselwa ukuthuthukisa ukugcinwa kwayo kwamanzi nokusebenza kwayo, ngakho-ke inani elingeziwe lincane; Ngenkathi use-gypsum udaka, ikakhulukazi emafomula kadaka adinga ukumelana okuthuthukile, inani le-HPMC elisetshenzisiwe mhlawumbe liphakeme kancane. Ngaphezu kwalokho, i-solubity ye-HPMC nayo inethonya elikhulu emphumeleni wokusetshenziswa. Imvamisa kudingeka ukuthi ihlakazeke ngokulinganayo lapho ulungiselela i-gypsum slurry ukuqinisekisa ukuthi ingawuthola ngokuphelele umphumela wayo.

4. Izici ezithinta ukusebenza kwe-HPMC
Ukusebenza kwe-HPMC kuthintwa yizici eziningi, kufaka phakathi isisindo sayo samangqamuzana, i-degree yokufaka esikhundleni (ie, izinga lokufakwa esikhundleni samaqembu we-methoppy kanye ne-hydroxypropopoxy), usayizi we-hpmc, onamandla okuqina kwe-HPMC; Lapho kukhuphuka izinga lokufaka esikhundleni, elingcono ngokuhlaselwa kwalo nokugcinwa kwamanzi. Ngakho-ke, phakathi kwezinto zokwakha ezenzelwe ama-gypsum, kubalulekile ukukhetha imodeli efanele ye-HPMC.

Izimo zezemvelo ezinjengokushisa, umswakama kanye nezinye izithako ezintweni ze-gypsum nazo zithinta ukusebenza kwe-HPMC. Isibonelo, ezindaweni zokushisa okuphezulu, izinga lokuchithwa kanye nokugcinwa kwamanzi kwe-HPMC kuzokwehla. Ngakho-ke, ekwakhiweni kwangempela, ifomula idinga ukulungiswa ngokufanele ngokususelwa ezimweni zesayithi.

I-5. Izinzuzo zesicelo se-HPMC ngezinto zokwakha ezenzelwe ama-gypsum
Ukusetshenziswa kwe-HPMC ngezinto zokwakha ezenzelwe ama-gypsum zinezinzuzo eziningi futhi zingathuthukisa kakhulu ukusebenza kokwakha kwezinto ezibonakalayo kanye nekhwalithi yomkhiqizo ophelile:

Thuthukisa amandla abonakalayo: I-HPMC ithuthukisa ukugcinwa kwamanzi kwezinto zokwakha ze-gypsum futhi yenza ukusabela kwe-hydrate kuqedwe ngokwengeziwe, ngaleyo ndlela kuthuthukiswe amandla ezinto ezibonakalayo.
Lungiselela inqubo yokwakha: Imiphumela yokuqina nokuthambisa kwe-HPMC ingathuthukisa kakhulu ukushelela kokwakha nokunciphisa ukugcwala nokugcoba.
Isikhathi esandisiwe esisebenzayo: I-HPMC inweba isikhathi esivulekile sezinto zokugcina ngokugcina i-slurry kahle inomswakama, inikeze abasebenzi abazokwakha indawo yokulungiswa.
Thuthukisa ukuqedwa komhlaba: I-HPMC inganciphisa imifantu nama-bubble ezintweni ze-gypsum, iqinisekisa indawo ebushelelezi neyisicaba ngemuva kokomiswa.

Ukusetshenziswa kwe-Hydroxypropyll methylcellulose (HPMC) ezintweni zokwakha ezenzelwe ama-gypsum azigcini nje ngokuthuthukisa izakhiwo ezibonakalayo zezinto ezibonakalayo, kepha futhi zithuthukisa kakhulu ikhwalithi yokwakha kanye nokusebenza kahle. Imisebenzi yayo yokuqina, ukugcinwa kwamanzi, kanye nokumelana nokuqhekeka kwenza izinto ezisekelwe e-gypsum zisetshenziswe kabanzi ezakhiweni zanamuhla. Ngokukhetha amamodeli afanele ama-HPMC namafomula, onjiniyela bokwakha kanye nabasebenzi bezokwakha bangathola imiphumela efanelekile yokusebenzisa kwizimo ezihlukile zohlelo, ukuhlinzeka ngesiqinisekiso esinamandla sekhwalithi nokuqina kwezakhiwo.