Uluhlu lwe-viscosity eqhelekileyo ye-HPMC kwizicelo zokwakha
1. Intshayelelo
I-Hydroxypropyl Methylcellulose (HPMC) yinto ebalulekileyo yokongeza izinto zokwakha kwaye isetyenziswa ngokubanzi kwiimveliso ezahlukahlukeneyo kwishishini lezinto zokwakha, ezifana nodaka oluxubekileyo, i-putty powder, i-tile adhesive, njl. I-HPMC inemisebenzi emininzi efana nokuqina, ukugcina amanzi, kunye nokusebenza okuphuculweyo kolwakhiwo. Ukusebenza kwayo kuxhomekeke kumlinganiselo omkhulu kwi-viscosity yayo. Eli nqaku liza kuphonononga ngokweenkcukacha uluhlu lwe-viscosity eqhelekileyo ye-HPMC kwizicelo ezahlukeneyo zokwakha kunye nefuthe labo ekusebenzeni kolwakhiwo.
2. Iimpawu ezisisiseko ze-HPMC
I-HPMC yi-ether ye-cellulose engena-ionic yamanzi e-soluble efunyenwe ngokuguqulwa kweekhemikhali ze-cellulose yendalo. Inezi mpawu zilandelayo:
Ukuqina: I-HPMC inokunyusa i-viscosity yezinto zokwakha kunye nokubonelela ngokusebenza kakuhle.
Ukugcinwa kwamanzi: Kunokunciphisa ngokufanelekileyo ukuvela kwamanzi kunye nokuphucula ukusebenza kakuhle kwe-hydration reaction yesamente kunye negypsum.
Ukuthambisa: Yenza imathiriyeli ibe lula ngexesha lokwakha kwaye kube lula ukuyifaka.
Iimpawu zokwenza ifilimu: Ifilimu eyenziweyo inokuqina okulungileyo kunye nokuguquguquka kwaye inokuphucula iimpawu zomphezulu wezinto eziphathekayo.
3. Ukusetyenziswa kweHPMC kwizinto zokwakha
I-adhesive ye-tile: Indima ephambili ye-HPMC kwi-adhesive tile kukuphucula amandla okudibanisa kunye nexesha elivulekileyo. Uluhlu lwe-viscosity luqhelekile phakathi kwe-20,000 kunye ne-60,000 mPa·s ukubonelela ngeempawu ezilungileyo zokudibanisa kunye nexesha elivulekileyo. I-viscosity ephezulu ye-HPMC inceda ukunyusa amandla okubopha i-tile yokunamathela kunye nokunciphisa ukutyibilika.
I-Putty powder: Phakathi kwe-putty powder, i-HPMC idlala indima enkulu yokugcina amanzi, ukuthambisa kunye nokuphucula ukusebenza. I-viscosity ikholisa ukuba phakathi kwe-40,000 kunye ne-100,000 mPa·s. I-viscosity ephezulu inceda ukugcina ukufuma kwi-putty powder, ukuphucula ixesha layo lokusebenza lokwakha kunye nokugudiswa komphezulu.
Udaka lomxube owomileyo: I-HPMC isetyenziselwa udaka lomxube owomileyo ukuqinisa ukunamathela kunye neempawu zokugcina amanzi. Uluhlu lwe-viscosity eqhelekileyo luphakathi kwe-15,000 kunye ne-75,000 mPa·s. Kwiimeko ezahlukeneyo zesicelo, ukukhetha i-HPMC ene-viscosity efanelekileyo kunokwandisa ukusebenza kwebhondi kunye nokugcinwa kwamanzi odaka.
Udaka oluzilinganisa ngokwalo: Ukuze wenze udaka oluzilinganisayo lube nolwelo olulungileyo kunye nesiphumo sokuziphakamisa, i-viscosity ye-HPMC iqhele ukuba phakathi kwe-20,000 kunye ne-60,000 mPa·s. Olu luhlu lwe-viscosity luqinisekisa ukuba i-mortar ine-fluidity eyaneleyo ngaphandle kokuchaphazela amandla ayo emva kokunyanga.
Ukugquma okungangeni manzi: Kwiingubo zokungangeni manzi, i-viscosity ye-HPMC inempembelelo enkulu kwiipropati zokugquma kunye neepropati zokwenza ifilimu. I-HPMC ene-viscosity ephakathi kwe-10,000 kunye ne-50,000 mPa·s idla ngokusetyenziselwa ukuqinisekisa ulwelo olulungileyo kunye neempawu zokwenza ifilim zokwaleka.
4. Ukukhethwa kwe-HPMC viscosity
Ukukhethwa kwe-viscosity ye-HPMC ikakhulu kuxhomekeke kwindima yayo kwizicelo ezithile kunye neemfuno zokusebenza zokwakha. Ngokubanzi, okukhona iphezulu i-viscosity ye-HPMC, kokukhona isiphumo sokujiya kunye nogcino lwamanzi ingcono, kodwa i-viscosity ephezulu kakhulu inokubangela ubunzima bokwakha. Ngoko ke, ukukhetha i-HPMC ene-viscosity efanelekileyo ngundoqo ekuqinisekiseni iziphumo zokwakha.
Isiphumo sokuqina: I-HPMC ene-viscosity ephezulu inefuthe elinamandla lokutyeba kwaye ifanelekile kwizicelo ezifuna ukunamathela okuphezulu, njengeglu yethayile kunye nomgubo weputty.
Ukusebenza kokugcina amanzi: I-HPMC ene-viscosity ephezulu igqwesile kulawulo lokufuma kwaye ifanelekile kwizinto ezifuna ukugcina ukufuma ixesha elide, njengodaka oluxubeneyo owomileyo.
Ukusebenza: Ukuze kuphuculwe ukusebenza kwezinto eziphathekayo, i-viscosity ephakathi inceda ekuphuculeni ukuguquguquka kwemisebenzi yokwakha, ngokukodwa kwi-self-leveling mortars.
5. Izinto ezichaphazela i-HPMC viscosity
Iqondo lepolymerization: Iqondo eliphezulu le-polymerization ye-HPMC, inkulu i-viscosity. izicelo ezahlukeneyo zifuna ukhetho HPMC kunye amanqanaba ezahlukeneyo polymerization ukufikelela iziphumo ezingcono.
Ugxininiso lwesisombululo: Ukuxinwa kwe-HPMC emanzini kuya kuchaphazela i-viscosity yayo. Ngokuqhelekileyo, okukhona ugxininiso lwesisombululo, lukhulu ngakumbi i-viscosity.
Ubushushu: Ubushushu bunempembelelo ebalulekileyo kwi-viscosity yezisombululo ze-HPMC. Ngokubanzi, i-viscosity yezisombululo ze-HPMC iyancipha njengoko ubushushu bukhula.
Njengesongezo esibalulekileyo kwizinto zokwakha, i-viscosity ye-HPMC ichaphazela kakhulu ukusebenza kolwakhiwo kunye nesiphumo sokusetyenziswa kwemveliso yokugqibela. Uluhlu lwe-viscosity ye-HPMC luyehluka phakathi kwezicelo, kodwa luqhelekile ukuba phakathi kwe-10,000 kunye ne-100,000 mPa·s. Xa ukhetha i-HPMC efanelekileyo, kuyimfuneko ukuqwalasela ngokubanzi impembelelo ye-viscosity kwiipropati eziphathekayo ngokweemfuno ezithile zesicelo kunye neemeko zokwakha, ukuze kuphunyezwe umphumo wokusetyenziswa.
Ixesha lokuposa: Jul-08-2024