1. Muchidimbu
Hydroxypropyl Methylcellulose (HPMC) is a high-molecular compound ine basa rakanakisa, rinoshandiswa zvakanyanya mukuvaka, kunyanya mukugadzirwa kwesamende-based mortar. Mabasa makuru eHPMC mudhaka resimende anosanganisira kukora, kuchengetedza mvura, kuvandudza zvivakwa zvekubatanidza uye kuvandudza kushanda. Kunzwisisa maitiro ekupararira kweHPMC mudhaka resimende kwakakosha zvikuru kukwenenzvera kuita kwayo.
2. Zvinhu zvakakosha zveHPMC
HPMC isiri-ionic cellulose ether, ine zvimiro zvikamu zvinoumbwa ne cellulose, hydroxypropyl uye methyl. Iyo kemikari chimiro cheHPMC chinopa iyo yakasarudzika yemuviri uye kemikari zvivakwa mune aqueous mhinduro:
Kukora mhedzisiro: HPMC inogona kugadzira viscous mhinduro mumvura, iyo inonyanya kukonzerwa nekuti mushure mekunyungudika mumvura, mamorekuru anosungirirwa pamwe chete kuti aite network network.
Kuchengetwa kwemvura: HPMC ine simba rekuchengetedza mvura uye inogona kunonoka kubuda kwemvura, nokudaro ichiita basa rekuchengetedza mvura mudhaka resimende.
Adhesion performance: Nekuti HPMC mamorekuru anoumba firimu rekudzivirira pakati pemasimende, iyo yekubatanidza kuita pakati pezvimedu inovandudzwa.
3. Dispersion process yeHPMC mune simende dhaka
Dissolution process: HPMC inoda kutanga yanyungudutswa mumvura. Nzira yekuparara ndeyokuti HPMC powder inotora mvura uye inoputika, uye zvishoma nezvishoma inopararira kuti iite yunifomu mhinduro. Sezvo kunyungudika kweHPMC mumvura kune hukama nedhigirii rekutsiva (DS) uye huremu hwemamorekuru, zvakakosha kusarudza iyo chaiyo HPMC yakatarwa. Kuparara kweHPMC mumvura inzira yekuparadzira, inoda kubvongodzwa kwakakodzera kuti ikurumidze kupararira.
Dispersion uniformity: Panguva yekuparara kweHPMC, kana kubvongodza kusina kukwana kana mamiriro ekuparara asina kufanira, HPMC inowanzoita agglomerates (maziso ehove). Aya maagglomerates akaoma kunyungudika zvakare, zvichikanganisa kushanda kwesamende dhaka. Naizvozvo, yunifomu inobvongodza panguva yekunyungudutswa chinhu chakakosha chinongedzo chekuona kupararira kwakafanana kweHPMC.
Kudyidzana nezvikamu zvesimende: Maketani epolymer akaumbwa mushure mekunge HPMC yanyungudutswa anozoshambadza zvishoma nezvishoma pamusoro pezvikamu zvesimende uye bhiriji pakati pezvimedu zvesimende kugadzira firimu rinodzivirira. Iyi firimu inodzivirira inogona kuwedzera kunamatira pakati pezvimedu kune rumwe rutivi, uye kune rumwe rutivi, inogona kugadzira chipingamupinyi pamusoro pezvimedu kunonoka kutama uye kubuda kwemvura.
Dispersion stability: Iyo polymer cheni yeHPMC inogona kushambadza neCa2+, SiO2 uye mamwe maion pamusoro pemasimende esimende kudzikamisa mamiriro ayo ekupararira. Nekugadzirisa dhigirii rekutsiva uye huremu hwemamorekuru eHPMC, kugadzikana kwayo kwekuparadzira mudhaka resimende kunogona kugadziridzwa.
4. Kushanda optimization yeHPMC mune simenti dhaka
Kukora mhedzisiro:
Iko kukora mhedzisiro yeHPMC mudhaka kunoenderana nekusangana kwayo uye huremu hwemamorekuru. HPMC ine huremu hwemamorekuru hwepamusoro inogona kuwedzera zvakanyanya viscosity yedhaka, nepo HPMC ine huremu hwakaderera hwemamorekuru inogona kuburitsa zvirinani kukora mhedzisiro pakudzika kwakadzika.
Iko kukora mhedzisiro inogona kuvandudza kushanda kwedhaka uye kuita kuti dhaka rive nekushanda kuri nani, kunyanya mukuvaka kwakamira.
Kuchengeta mvura:
HPMC inogona kunyatso kubata hunyoro uye kuwedzera nguva yakavhurika yedhaka. Kuchengetwa kwemvura hakugone chete kuderedza shrinkage uye matambudziko ekuputika mudhaka, asiwo kuvandudza kushanda kwekubatanidza kwedhaka pane substrate.
Iyo mvura yekuchengetedza simba yeHPMC ine hukama zvakanyanya nekunyungudika kwayo. Nekusarudza HPMC ine dhigirii yakakodzera yekutsiva, iyo yekuchengeta mvura mhedzisiro yedhaka inogona kugadziridzwa.
Yakavandudzwa bonding properties:
Sezvo HPMC ichigona kuumba bhiriji rinonamira pakati pemasimende, inogona kunyatso kuvandudza kusimba kwechisungo chedhaka, kunyanya kana ichishandiswa mudhaka yekupisa yekupisa uye zvinonamira mataira.
HPMC inogona zvakare kuvandudza mashandiro ekuvaka nekudzikisa kukurumidza kubuda kwemvura uye nekupa nguva yakareba yekushanda.
Kuita kwekuvaka:
Iko kushandiswa kweHPMC mudhaka kunogona kuvandudza zvakanyanya kuita kwayo kuvaka. HPMC inoita kuti dhaka rive nani lubricity uye viscosity, iri nyore kuisa nekuvaka, kunyanya mune zvakadzama mashandiro kuti ive nechokwadi chekuvakwa kwakanaka.
Nekugadzirisa huwandu uye kumisikidzwa kweHPMC, iyo rheological zvimiro zvedhaka zvinogona kuvandudzwa kuti zvigadzirise kune zvakasiyana zvinodiwa zvekuvaka.
5. Mienzaniso yekushandisa yeHPMC mudhaka resimende
Tile adhesive:
HPMC inonyanya kuita basa rekuchengetedza mvura uye kukora mumatairi anonamira. Nekuvandudza kuchengetwa kwemvura kweanonamatira, HPMC inogona kuwedzera nguva yayo yakavhurika, kupa yakakwana nguva yekugadzirisa, uye kudzivirira mataira kubva pakutsvedza mushure mekuvaka.
Iko kukora mhedzisiro inovimbisa kuti inonamira haina kudonha panguva yekuvaka facade, inovandudza kurerukirwa uye mhedzisiro yekuvaka.
External wall insulation mortar:
Mune ekunze madziro ekudzivirira dhaka, basa guru reHPMC nderekuvandudza kuchengetwa kwemvura uye kutsemuka kuramba kwedhaka. Nekubata hunyoro, HPMC inogona kunyatso kudzikisa shrinkage uye kuputika kwedhaka panguva yekuomesa.
Sezvo insulation dhaka ine zvakakwirira zvinodiwa pakuita kwekuvaka, iko kukora kweHPMC kunogona kuve nechokwadi chekugovera yunifomu yedhaka pamadziro, nekudaro ichivandudza kuita kwese kweiyo insulation layer.
Solf-leveling mortar:
HPMC mudhaka rekuzvimisa-leveling inogona kuve nechokwadi chekuti hapana stratification kana mvura inoyerera panguva yekuenzanisa maitiro nekuwedzera viscosity yedhaka, nekudaro kuve nechokwadi kudzika uye kusimba kwekuzvimiririra.
6. Remangwana rekuvandudza maitiro eHPMC
Green uye kuchengetedza kwezvakatipoteredza:
Nekuvandudzwa kwezvinodiwa zvekuchengetedza kwezvakatipoteredza, kuvandudzwa kwezvishoma-chepfu uye biodegradable HPMC zvigadzirwa zvichave yakakosha gwara mune ramangwana.
HPMC yakasvibira uye ine hushamwari kwezvakatipoteredza haingogone kuderedza kukanganiswa kwezvakatipoteredza, asiwo inopa yakachengeteka yekushanda nharaunda panguva yekuvaka.
Kuita kwepamusoro:
Nekukwenenzvera chimiro chemolecular yeHPMC, yepamusoro-inoshanda HPMC zvigadzirwa zvinogadzirwa kuti zvisangane nesamende dhaka zvikumbiro nepamusoro pekuita zvinodiwa.
Semuenzaniso, nekugadzirisa dhigirii rekutsiva uye huremu hwemamorekuru eHPMC, zvigadzirwa zvine viscosity yakakwirira uye yakasimba kuchengetedza kwemvura zvinogona kugadzirwa.
Intelligent application:
Nekuvandudzwa kwesainzi yemidziyo, yakangwara inopindura HPMC inoiswa kune simende dhaka, ichiita kuti igadzirise kuita kwayo zvinoenderana nekuchinja kwezvakatipoteredza, sekugadzirisa otomatiki kuchengetwa kwemvura pasi pehunyoro hwakasiyana.
Yepamusoro-mhando cellulose HPMC inogona kunyatso kuparadzira uye kupa kukora, kuchengetedza mvura uye nekuvandudzwa kwekuvaka mumatope esimende kuburikidza neyakasiyana makemikari chimiro uye zvemuviri zvimiro. Nekusarudza zvine musoro nekugadzirisa mashandisirwo eHPMC, kuita kwese kwesamende dhaka kunogona kuvandudzwa zvakanyanya kuti isangane nezvinodiwa zvemhando dzakasiyana dzemashandisirwo. Mune ramangwana, iyo yakasvibira, yepamusoro-inoshanda uye nehungwaru kusimudzira kweHPMC kuchawedzera kusimudzira mashandisirwo ayo uye kusimudzira mune zvekuvaka.
Nguva yekutumira: Jun-21-2024