Izinto ezichaphazela ukugcinwa kwamanzi kwe-hydroxypropyl methylcelcelceluplose

I-Hydroxypropyl Methylcelceltulose ye-Polymer esetyenziswe ngokubanzi ekwakhiweni, amayeza, ukutya kunye namanye amasimi. Ngenxa yokugcinwa kwayo kwamanzi, idlala indima ebalulekileyo ekuthandeni i-cemetion, i-poceble powder, iingubo zangaphantsi kunye namalungiselelo ngamayeza. Ukugcinwa kwamanzi i-HPMC kuchaphazeleka ngezinto ezininzi, kubandakanya ukwakhiwa kwemolekyuli, isidanga sokufakwa endaweni, uVenkile, ubushushu, ubushushu, indawo yokuqulunqwa kwamanzi kunye nenkqubo yokuqulunqwa.

1. Impembelelo yesakhiwo semolekyuli kunye nesidanga sokufaka endaweni
I-HPMC inesakhiwo se-selselose skeleton kunye ne--och₃y (-och₃) kunye ne-hydroxypropoxy (-och₂okhchch₃), kwaye isidanga sayo sidlala indima ephambili ekugcinweni kwamanzi. Ubukho bawonyusa i-hpmrophility ye-HPMC, ngelixa ikwachaphazela ukonakala kwayo kunye neempawu zokwenza ifilimu. Ngokubanzi, inqanaba eliphezulu le-hydroxypropy, eyomeleleyo i-hydrophility kunye nokugcinwa kwamanzi kwi-HPMC. Umxholo ophezulu weqhinga unceda ekuphuculeni ukunyamezelana, esenza kube lula ukutshixa amanzi kwaye unciphise umgangatho wokuphuma kwamanzi.

2. Isiphumo sokubonisa i-viscosity
I-viscosity ye-HPMC yiparamitha ebalulekileyo yokulinganisa ubume be-sureological yesisombululo sayo, idla ngokuvakaliswa njengohlobo lwe-2% ye-ACTEAREAR (MPAF). Isisombululo esenziwa yi-HPMC ephezulu ye-HPMC yi-Deneser kwaye inokwenza ifilimu yamanzi azinzileyo phezu komxholo, ukulibazisa ukuvela kwamanzi kunye nokungena kwamanzi kunye nokuphucula umthamo wokugcina amanzi. Isisombululo se-HPMC esisezantsi se-HPMC sinobuqhophololo onamandla kwaye ilungele indawo efuna isicelo efuna ukukhutshwa kwamanzi ngokukhawuleza. Ke ngoko, kwimihlaba enjengokwakha i-HPMC, i-HPMCIty ye-HPMC ephezulu ilunge ngakumbi ekuphuculeni ukugcinwa kwamanzi, ngelixa i-HPMC ye-HPMC ilungele imeko yesicelo efuna ukoyiswa ngokukhawuleza.

I-3. Iziphumo zokudibanisa
Umsebenzi wokugcinwa kwamanzi we-HPMC unyuswa ngokunyuka kwexabiso lokudibanisa, kodwa kokukhona okungcono. Isixa esifanelekileyo se-HPMC sinokwenza ifilimu yokungcola elubwini okanye kwinkqubo yokuhlambela, ukunciphisa ukuphulukana kwamanzi, kunye nokuphucula ukwenziwa kokwakha. Nangona kunjalo, ukusetyenziswa kakhulu kunokukhokelela kuValus olugqithisileyo kwaye kuchaphazele ukusebenza kwendlela yokwakha, njengokunciphisa ubulwele bodaka kwaye lungenele ixesha lokuseta. Ke ngoko, kwizicelo ezenziwayo, isixa se-HPMC kufuneka sithathwe ngokuqondakali ukufezekisa eyona nto ilungileyo.

I-4. Isiphumo seqondo lobushushu
Iqondo lokushisa linempembelelo ebonakalayo ekugcinweni kwamanzi kwi-HPMC. Phantsi kobushushu obuphezulu, amanzi akhutshiwe ngokukhawuleza, kwaye amanzi esinxibo okanye ipeyinti ilahlekile ngokulula, kukhokelela ekuncipheni kokusebenza. I-HPMC ineepropathi ezithile zejeli ze-thermal. Xa idlula iqondo lobushushu layo, iya kuthi isebenzise amanzi, echaphazela ukusebenza kwamanzi. Ke ngoko, kwiindawo ezishushu okanye ezomileyo, kuyimfuneko ukukhetha iintlobo ezifanelekileyo ze-HPMC kwaye unyuse ngokufanelekileyo isixa songezelelo saso ukuqinisekisa ukugcinwa kwamanzi. Ukongeza, amanyathelo anjengesigqubuthelo kunye nonyango olumanzi unokuthathwa ukunciphisa ukulahleka kwamanzi.

I-5. Iqondo lokufumana amanzi
Amantshontsho ahlukeneyo aneziseko ezahlukeneyo zokufuduka amanzi, eziya kuthi zichaphazele ukusebenza kwe-HPMC. Amantshontsho ane-ansurption yamanzi, ezinje ngezitena, iibhodi ze-gypsum, njl njl, ziya kukhanyisa amanzi, zinciphise amanzi eludlen okanye ichaphazele umsebenzi wobubi. Kule meko, ukusetyenziswa kwe-viscofity ephezulu, i-HPMC ephezulu ingenza ifilimu engaphezulu kwamanzi egcina amanzi kumphezulu ukunciphisa ukulahleka kwamanzi. Ukongeza, uhlengahlengiso olufanelekileyo kwifomula, njengokudibanisa iiarhente zokugcina amanzi okanye ukunciphisa inqanaba lokufumana amanzi lomgangatho womhlaba, kunokuphucula umsebenzi wokugcina amanzi.

Impembelelo yenkqubo yokwenziwa
I-HPMC ihlala isebenza kunye nezinye izinto ezikum, i-putty okanye iinkqubo zokuzibamba, kunye nokugcinwa kwamanzi awo kuya kuchaphazeleka kukwenziwa kwaphela. Umzekelo, umlinganiso wesamente, i-lime, i-hydpm ye-hydam kunye nezinye izinto zesamente kwisitetimenti sichaphazela ngokuthe ngqo kwinqanaba lokuphendula lomzimba kunye nomthamo wokugcina amanzi. Ukusetyenziswa kwemiqathango njengabameli bomoya, iicuba, kunye neentsinga ziya kuchaphazela imeko yokuhambisa ye-HPMC, ngokwenza oko ukutshintsha umphumo wokugcina amanzi. Ke ngoko, xa uyila ukuqulunqwa, kubalulekile ukuba uqaphele ukusebenzisana phakathi kwe-HPMC nakwezinye izithako zokwenza umsebenzi wokugqibela wokugcina amanzi.

Ukugcinwa kwamanzi i-HPMC kuyachaphazeleka ngezinto ezininzi, kubandakanya nemozulu, isidanga sokufakwa endaweni, i-vistasity, isixa seqondo lokudibanisa, inqanaba lokufumana amanzi lenkqubo, kunye nenkqubo yokuqulunqwa kwenkqubo yendawo, kunye nenkqubo yokwenziwa kwamanzi. Kwisicelo esithile, kubalulekile ukukhetha iintlobo ezifanelekileyo ze-HPMC kwaye ukongeza kwisixa semigca eyahlukileyo yokusetyenziswa kunye neepropathi zezinto ezibonakalayo ukufezekisa ezona ziphumo zokugcina amanzi. Ukongeza, uhlengahlengiso lwefomula nenkqubo yokudibanisa kunye neemeko zokwakha zikwandisa ngakumbi ukusebenza kwendlela yokugcina amanzi kwaye kuphuculwe umgangatho kunye nokusetyenziswa kwemveliso yokugqibela.