Izakhiwo ze-hydroxypropyllylylylylylylyls in mongar

I-Hydroxypropyllykyl methylcellulose ingenye yezithasiselo ezibalulekile ze-cellulose ether ngodaka olomile, futhi inemisebenzi eminingi kudaka. Umsebenzi oyinhloko we-hydroxypropylllylyly methylcellulose ku-cement data ukugcinwa kwamanzi nokuqina. Ngaphezu kwalokho, ngenxa yokuxhumana kwayo nohlelo lukasimende, futhi futhi ludlale indima ekufakweni komoya, ukubuyiselwa emuva, kanye nokwenza ngcono amandla okuqinisa okuthe xaxa. umphumela.

Impahla ebaluleke kakhulu ye-hydroxypropylllylylylt methylcellulose ku-motar ukugcinwa kwamanzi. I-Hydroxypropyl Methylcellulose ingasetshenziswa cishe kuyo yonke imikhiqizo yodaka njenge-cellulose ether admixture e-wombana, ikakhulukazi ngenxa yokugcinwa kwayo kwamanzi. Ngokuvamile, ukugcinwa kwamanzi kwe-hydroxypropyllllllylylylyll methylcellulose kuhlobene nokubonakala kwayo, degree of inqumetha kanye nosayizi wezinhlayiyana.

I-Hydroxypropyllylylylylllllulose isetshenziswa njenge-ejenti yokuqina, futhi umphumela wayo wokuqina uhlobene nezinga lokufaka esikhundleni, usayizi wezinhlayiyana, ubuhlakani kanye ne-degydyproxpropylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylylyll methyl. Ngokuvamile, lapho kukhuphuka iziqu zokufakwa esikhundleni kanye nokubonwa kwe-cellulose ether, futhi kuncane ubukhulu bezinhlayiyana, okusobala kakhulu.

In hydroxypropyl methylcellulose, the introduction of methoxy groups reduces the surface energy of the aqueous solution containing hydroxypropyl methylcellulose, so that hydroxypropyl methylcellulose has an air-entraining effect on cement mortar. Kwethulwa ama-bubble omoya afanele kudaka, ngenxa ye- "Ball Effect" of Bubble Air,

Ukusebenza kokwakha kodaka kuyathuthuka, futhi ngasikhathi sinye, ukwethulwa kwama-bubble amoya kwandisa izinga lokukhipha lodaka. Vele, inani lomoya ongenayo lidinga ukulawulwa. Lapho umoya ofakiwe ukhulu kakhulu, uzoba nomthelela omubi emandleni odaka.

I-Hydroxypropylylylylyl izokubambezela inqubo yokusetha usimende, ukuze ukumiswa kukakhonkolo kanye nenqubo yokuqinisa ihlehliswe ukwehla, futhi isikhathi sokuvulwa sikadaka sizokwehla, kepha lo mphumela awunakukhululeka ngodaka ezindaweni ezibandayo.

I-Hydroxypropyl methylcellulose, njengento ende ye-polymer, ingathuthukisa ukusebenza kwebhondi nge-substrate ngaphansi kwesisekelo sokugcina ngokugcwele okuqukethwe kwamanzi ngemuva kohlelo lwamanzi.

Ukufingqa, izakhiwo ze-HPMC kuDinar zifaka ikakhulukazi: Ukugcinwa kwamanzi, ukuqina, ukunweba isikhathi, ukufakwa komoya kanye nokwenza ngcono amandla okubopha amaTensela.