1. Isishwankathelo kunye neepropati ze-HPMC
IHydroxypropyl Methylcellulose (HPMC)yi-ether ye-cellulose engeyo-ionic. Ineempawu zokunyibilika kwamanzi, ukuqina, ukugcinwa kwamanzi, ukubunjwa kwefilimu, i-dispersibility kunye nokuzinza ngokuzisa i-hydroxypropyl kunye namaqela asebenzayo e-methyl kwisakhiwo se-cellulose molecular. I-HPMC isetyenziswa kakhulu kwizinto zokwakha ezisekwe kwisamente ezifana nodaka lokwakha, iputty powder, i-self-leveling Cement kunye ne-tile adhesive. Kwiiprojekthi zokwakha zanamhlanje, ukwenzela ukuba kuphuculwe ukusebenza kwe-cement mortar, i-HPMC, njengesongezo esibalulekileyo esisebenzayo, inokuphucula kakhulu ukusebenza kunye nokuqina kwezinto ezisekelwe kwi-samente.
2. Indima ye-HPMC kudaka lwemathiriyeli yokwakha esekwe kwisamente
Ukutyeba kunye nokomeleza umphumo
Njenge-thickener kunye ne-binder, i-HPMC inokuphucula ukuhambelana, amandla okudibanisa kunye nokusebenza kodaka ngexesha lokwakha. Ngokusebenzisana nesamente kunye nesanti, i-HPMC yenza isiseko sothungelwano esinemigangatho emithathu ezinzileyo, enika udaka amandla abambeneyo aqinileyo, okwenza kube nzima ukudityaniswa kunye nokopha ngexesha lokwakha, ngelixa isenza i-coating eshinyeneyo kumphezulu wokuqinisekisa amandla kunye nokuqina.
Ukuphucula ukusebenza kogcino lwamanzi
Ukugcinwa kwamanzi ngenye yezona zinto zibalulekileyo kwi-samente-based mortar, echaphazela ngokuthe ngqo inkqubela ye-cement hydration reaction. I-HPMC inokuphucula ngokubonakalayo umthamo wokugcina amanzi wodaka. Indlela yokugcinwa kwamanzi kukunciphisa ukuguquguquka kwamanzi ngokwenza ifilimu yamanzi e-viscosity ephezulu, ukwenzela ukuba amanzi asasazwe ngokulinganayo kumdaka ukukhusela ukulahleka kwamanzi ngokukhawuleza. Ngale ndlela, kwindawo eyomileyo okanye enobushushu obuphezulu, i-HPMC inokuthintela ngokufanelekileyo udaka ekuqhekekeni kunye nokuphucula umgangatho wokwakha kunye nobomi benkonzo yodaka.
Ukuphucula ulwakhiwo kunye nokusebenza okuchasayo
Udaka lwesamente luthanda ukuwohloka ngexesha lolwakhiwo, nto leyo echaphazela umgangatho kunye nokusebenza kakuhle kweprojekthi. Ukongezwa kwe-HPMC kunokunika udaka ukusebenza okugqwesileyo kokuchasana nokuntywila, ukuphucula i-thixotropy yodaka, kwaye kwenze kube nzima ukutyibilika ngexesha lokwakhiwa kwe-facade. Kwangaxeshanye, i-HPMC inokwenza udaka lube nokusebenza okugqwesileyo kunye nokuthambisa, ukomeleza ukuguda kolwakhiwo, ukunciphisa ubunzima bokwakha, kunye nokuphucula ukusebenza kakuhle kolwakhiwo.
Yandisa ukucutheka kunye nokumelana nokuqhekeka kodaka
Udaka olusekwe kwisamente luthanda ukushwabana iintanda ngexesha lokumisa, okukhokelela ekunciphiseni ukuqina. I-HPMC inciphisa ngempumelelo umngcipheko wokuqhekeka kwe-shrinkage ngokuphucula ubumbano kunye nokunwebeka kodaka. Ukongeza, i-HPMC inokwandisa ixesha le-hydration reaction kudaka, yenze i-cement hydration yanele ngakumbi, ngaloo ndlela icothisa ukucutheka kodaka kunye nokuphucula ukuxhathisa kokuqhekeka kodaka.
3. Iindawo zokusetyenziswa kwe-HPMC
Udaka lwe-plaster eqhelekileyo
Kudaka oluqhelekileyo lwe-plaster, i-HPMC inokuphucula ukusebenza kokubambisana kunye nokugcinwa kwamanzi odaka, ukuqinisekisa ukuba umgangatho wokwakha ufana kwaye ugudile, kwaye unciphise ukwenzeka kweentanda. I-thixotropy ye-HPMC inokunyusa ukuguquguquka kokusebenza ngexesha lokutyabeka, ukwenzela ukuba udaka lunokuphiliswa ngokukhawuleza kwaye lwenziwe emva kwesicelo, kwaye lugcine umphumo omuhle.
Izincamathelisi zethayile
HPMCisetyenziswa ngokubanzi kwi-adhesives ye-tile, kwaye amandla ayo okudibanisa okulungileyo kunye neempawu ezichasene ne-anti-slip zinokuxhasa ngokufanelekileyo ukuncamathiselwa kweetayile. Ngelo xesha, i-HPMC inokunyusa i-ductility kunye nokugcinwa kwamanzi kwe-adhesive tile, okwenza umphumo wokwakha uzinzile kwaye uhlale. Ngokukodwa kulwakhiwo lweethayile ezinkulu, i-HPMC inokunceda abasebenzi bokwakha ukuba babeke ngokuchanekileyo kwaye bahlengahlengise.
Udaka lwesamente lokuzilinganisa
I-self-leveling mortar yinto yokuziphakamisa, ukukhawuleza ukwenza izinto ezisetyenziselwa ukulinganisa umgangatho. HPMC idlala indima ukujiya kunye nokugcinwa kwamanzi, ukwenza self-leveling udaka lwesamente uzinze ngakumbi. I-HPMC isenokuphucula ubumanzi kunye nokusasazeka kodaka oluzilinganisayo, ngaloo ndlela inqanda ukwenzeka kwentlenga.
Udaka oluxutyiweyo olomileyo kunye neputty powder
Kwi-dry-mixed-mixed powder kunye ne-putty powder, i-HPMC iphucula i-flatness kunye nomgangatho ophezulu wendawo yokwakha ngokugcinwa kwamanzi kunye nokunamathela, ngelixa ikhusela ukomisa nokuqhekeka. Kwi-putty powder, i-HPMC ayinikeli kuphela impembelelo yokugqoka egudileyo, kodwa iqinisekisa ukuba umphezulu emva kokwakhiwa akulula ukuqhekeza, ukuphucula umgangatho wokugqiba kunye nobomi benkonzo.
4. Imiqathango yokusetyenziswa kwe-HPMC kudaka lwemathiriyeli yokwakha esekwe kwisamente
Ulawulo lomthamo
Isixa se-HPMC esongeziweyo sinempembelelo ebalulekileyo ekusebenzeni kodaka. Ukongezwa okugqithisileyo kuya kubangela ukuba udaka lube lukhuni kakhulu, lube nzima ukusebenza, kwaye luvelise ubumhlophe okanye ukunciphisa amandla phezu komhlaba emva kokumisa. Ngoko ke, isixa HPMC kufuneka ilawulwe ngokungqongqo xa ulungiselela udaka. Isixa-mali sokongeza esicetyiswayo ngokubanzi yi-0.1% -0.3% yobunzima besamente.
Ukuhambelana neminye imixube
Kwizinto ezisekelwe kwi-samente, i-HPMC inokunxibelelana nezinye izongezo ezifana nezinciphisi zamanzi, i-air entraining agents, kunye ne-anti-cracking agents. Ukuhambelana kwe-HPMC kunye nezinye ii-admixtures kufuneka ziqwalaselwe xa kuyilwa ifomula, kwaye ifomula kufuneka iphuculwe ngokusebenzisa imifuniselo ukuqinisekisa ukusebenza kakuhle.
Ukusasazwa kunye nendlela yokuphelisa
I-HPMC kufuneka isasazwe ngokulinganayo xa isetyenziselwa ukunqanda i-agglomeration echaphazela ukusebenza kodaka. I-HPMC idla ngokudityaniswa ngexesha lenkqubo yokuxuba ukuyinyibilikisa ngokulinganayo emanzini, ukuze inike ukudlala ngokupheleleyo kwindima yayo.
HPMC isetyenziswa kakhulu kudaka lwemathiriyeli yokwakha esekwe kwisamente, kwaye idlala indima engenakuthathelwa indawo ekwandiseni ukujiya, ukugcinwa kwamanzi kunye nokuchasana nokuqhekeka, kunye nokuphucula ukusebenza kolwakhiwo. Ngophuhliso lwetekhnoloji yemathiriyeli yokwakha kunye nemfuno ekhulayo yokhuseleko lokusingqongileyo kunye nokugcinwa kwamandla, ukusetyenziswa kweHPMC kuyakhula kwaye kuphuculwe. Ngolawulo lwezenzululwazi lwendlela yesicelo kunye nedosi ye-HPMC, umphumo wokwakha kunye nokuqina kwezinto ezisekelwe kwi-samente kunokuphuculwa kakhulu, ukukhuthaza ngakumbi uphuhliso kunye nenkqubela phambili yoshishino lokwakha.
Ixesha lokuposa: Nov-11-2024