Methyl hydroxyethyl cellulose (MHEC)imhando ye ether isina ionic cellulose inoshandiswa zvakanyanya mukuvaka masisitimu emota. Nekuda kwekukora kwayo kwakanaka, kuchengetedza mvura, kushanda zvakanaka uye kuenderana kwayo, MHEC yave imwe yezvinowedzerwa zvakakosha mumota yakasanganiswa yakaoma, kunyanya mu tile adhesive, plaster mortar, floor mortar, self-leveling mortar nezvimwe zvigadzirwa.
1. Mechanism yekuita kweMHEC mudhaka
MHEC, sepolymer inonyungudika mumvura, inogona kugadzira mhinduro yemvura yakafanana kana colloid mudhaka. Kana ikaiswa mudhaka rakasanganiswa nemvura uye ikasangana nemvura, MHEC inokurumidza kunyorovesa nekunyungudika, nokudaro ichikanganisa hunhu hwe rheological hwedhaka, maitiro e hydration yesimende, kuchengetedza mvura uye hunhu hwe interface. Maitiro ayo makuru anosanganisira zvinotevera:
Kukora: MHEC inoumba mhinduro ine viscosity yakakura mushure mekunyungudika mumvura, izvo zvinogona kuwedzera viscosity yemuchina wemortar zvakanyanya, nokudaro zvichivandudza kunzwa kwekuvaka uye hunhu hwekudzivirira kudonha;
Kuchengetedza mvura: MHEC ine kugona kwakanaka kwekuchengetedza mvura, izvo zvinogona kuderedza kurasikirwa nemvura inosanganiswa, kuve nechokwadi chekuti simende, gypsum nezvimwe zvinhu zvinosimbisa simende zvinowanikwa zvakakwana, uye kuvandudza kukura kwesimba;
Kuvandudza mashandisirwo emafuta nekuvaka: Mamorekuru eCellulose ether anopa mafuta akati wandei muhurongwa hwematura, izvo zvinobatsira pakushandiswa nekupararira kwematope uye zvinovandudza kushanda zvakanaka kwekuvaka;
Kugadzikana kwemabhurumu: MHEC inogona kudzikamisa mamwe mabhurumu panguva yekusanganisa, uye huwandu hwakakodzera hwemabhurumu madiki hunogona kuvandudza kushanda zvakanaka uye kuchengetedza mvura kwedhaka;
Kunonoka kuonda: MHEC ine mhedzisiro yekunonoka pakunyoroveswa kwesimende, izvo zvinobatsira kuwedzera nguva yekushanda.
2. Kuvandudzwa kwakananga kwekushanda kwemota neMHEC
2.1. Kuvandudzwa kwekushanda kwekuvaka
Kushanda zvakanaka kwekuvaka dhaka chiratidzo chikuru chekuyera kushandiswa kwaro zviri nyore. MHEC inovandudza kunamira uye kunyorova kwedhaka rakanyorova, zvichiita kuti zvive nyore kugadzira. Kunyanya mudhaka rinonamira nedhaka replaster, rinogona kuderedza zvakanyanya kudzika uye kuvandudza kufanana kwekushandiswa kwaro.
2.2. Kushanda zvakanaka kwekuchengetedza mvura
Kuchengetwa kwemvura ndeimwe yehunhu hukuru hweMHEC. Munzvimbo dzine maburi (senge zvidhinha nekongiri) kana munzvimbo dzakaoma zvakanyanya, mvura inonyudzwa nyore nyore kana kupwa nekukurumidza, zvichikanganisa hydration yesimende. MHEC inonyatsovhara hunyoro nekugadzira firimu remvura, kuderedza kubuda kwemvura nekupwanyika, uye kunatsiridza kusimba kwedhaka nekunamatira.
2.3. Simba rekubatana rakavandudzwa
MHEC inovandudza kufanana uye kunyorova kwedhaka, zvichiita kuti pave nechimiro chakasimba pakati pedhaka nesubstrate nezvinhu zvepamusoro (zvakadai semataira), izvo zvinobatsira kuvandudza kusimba kwekubatana. Kunyanya mumataira anonamira anoshanda zvakanyanya, MHEC inogona kushanda pamwe chete nemapolymer emulsions (akadai seupdha hwelatex hunonyungudika).
2.4. Kuvandudza mashandiro ekudzivirira kudonha kwemvura
Panguva yekuvaka facade, dhaka rinogona kudonha nekuda kwesimba rinokwevera pasi, zvichikanganisa kudzora ukobvu uye runako. MHEC inopa simba rakanaka rekudzivirira kudonha, zvichibvumira dhaka kuchengetedza chimiro charo pamadziro, izvo zvinonyanya kukosha kune mataira makuru uye matanda makobvu.
2.5. Kuvandudza kugadzikana kwenzvimbo yekuchengetera uye kuyerera kwehupfu hwakaoma
MHEC yemhando yepamusoro inopararira zvakanaka nehupfu hwakaoma uye inosanganisa zvakafanana, haisi nyore kuisanganisa, uye inobatsira kugadzira zvinhu zvakagadzikana uye kuchengetwa kwenguva refu kwezvigadzirwa zvedhaka.
3. Hunhu hwekushandisa MHEC muhurongwa hwakasiyana hwedhaka
Namira yeTile
MHEC inovandudza mashandiro ekuvaka, mashandiro asingatsvedzeri uye nguva yekuvhura, uye inovandudza kunamira kwemataira.
Purasi yevhu
Kuvandudza kutsetseka kwekukwesha, kunatsiridza kuchengetedza mvura, uye kudzivirira hupfu nekutsemuka.
Dura repasi
Kuvandudza kuyerera uye kushanda kwega kuti ive nechokwadi chekuti ukobvu hwekuisa hwakaenzana.
Dura rinozvienzanisa
Dzora kuyerera kwemvura, dzivisa kupatsanurwa, uye chengetedza kuti pamusoro pacho pave pakadzika.
Duri rekudzivirira kupisa
Mumasystem ekudzivirira kupisa akareruka, MHEC inoita kuti slurry ipararire zvakaenzana, inovandudza kubatana uye kuchengetedza mvura.
4. Nzira dzekudzivirira pakushandisa
Kudzora huwandu hwekuwedzera: Huwandu hwekuwedzera hweMHEC hunowanzova 0.2% ~ 0.5%, iyo inoda kugadziriswa zvichienderana nefomula uye zvinodiwa zvekuvaka;
Zvinodiwa pakupararira: Kuti ishande zvizere, MHEC inofanirwa kupararira zvakaenzana panguva yekusanganisa;
Kuenderana nezvimwe zvinowedzerwa: Kunofanira kutariswa pakubatana kweMHEC ne latex powder, retarder, defoamer nezvimwe zvinowedzerwa kudzivirira kupindirana.
Methyl hydroxyethyl cellulose, se cellulose ether ine mashandiro akanaka, inoratidza kukosha kwakanaka muhurongwa hwemortar. Haingogadzirise mashandiro ekuvaka chete, kugadzikana kwemuviri uye simba rekupedzisira remortar, asiwo inoita basa rakakosha mukusimudzira maindasitiri uye greening yezvigadzirwa zvemortar zvakasanganiswa zvakaoma. Sezvo zvinhu zvekuvaka zvichikura kusvika pakushanda kwepamusoro uye kuchengetedzwa kwezvakatipoteredza,kushandiswa kweMHEC kuchawedzera uye kwakadzika.
Nguva yekutumira: Chikumi-26-2025