Njengenye yezingxube ezibalulekile ze-cellulose ether ku-dry powder mortar, i-hydroxypropyl methylcellulose inemisebenzi eminingi ku-mortar. Indima ebaluleke kakhulu ye-hydroxypropyl methylcellulose ku-cement mortar ukugcinwa kwamanzi kanye nokuqina. Ngaphezu kwalokho, ngenxa yokusebenzisana kwayo nohlelo lwe-cement, ingadlala indima yokusiza ekubambeni umoya, ekubambezeleni ukusetha, kanye nasekuthuthukiseni amandla e-tensile bond.
Ukusebenza okubaluleke kakhulu kwe-hydroxypropyl methylcellulose ku-mortar ukugcinwa kwamanzi. Njengengxube ye-cellulose ether ku-mortar, i-hydroxypropyl methylcellulose ingasetshenziswa cishe kuyo yonke imikhiqizo ye-mortar, ikakhulukazi ngenxa yokugcinwa kwamanzi kwayo. Ngokuvamile, ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose kuhlobene nokubonakala kwayo, izinga lokufakwa esikhundleni kanye nosayizi wezinhlayiya.
I-Hydroxypropyl methylcellulose isetshenziswa njengesithako sokujiya, futhi umphumela wayo wokujiya uhlobene nezinga lokushintsha, usayizi wezinhlayiya, i-viscosity kanye nezinga lokuguqulwa kwe-hydroxypropyl methylcellulose. Ngokuvamile, lapho izinga lokushintsha kanye ne-viscosity ye-cellulose ether liphakama, futhi lapho izinhlayiya zincane, umphumela wokujiya ubonakala kakhulu.
Ku-hydroxypropyl methylcellulose, ukwethulwa kwamaqembu e-methoxy kunciphisa amandla angaphezulu esisombululo samanzi esiqukethe i-hydroxypropyl methylcellulose, ukuze i-hydroxypropyl methylcellulose ibe nomphumela wokungenisa umoya ku-cement mortar. Faka amabhamuza omoya afanele ku-mortar, ngenxa "yomphumela webhola" wamabhamuza omoya,
Ukusebenza kokwakhiwa kwe-mortar kuyathuthuka, futhi ngesikhathi esifanayo, ukufakwa kwamabhamuza omoya kwandisa izinga lokukhipha kwe-mortar. Yiqiniso, inani lokungena komoya kudingeka lilawulwe. Ukungena komoya okuningi kakhulu kuzoba nomthelela omubi emandleni e-mortar.
I-Hydroxypropyl methylcellulose izolibazisa inqubo yokubeka usimende, ngaleyo ndlela yehlise ijubane lokubeka kanye nenqubo yokuqinisa usimende, futhi yandise isikhathi sokuvula usimende ngokufanele, kodwa lo mphumela awulungile ku-simende ezindaweni ezibandayo.
Njengento ye-polymer enochungechunge olude, i-hydroxypropyl methylcellulose ingathuthukisa ukusebenza kokubopha ne-substrate ngemuva kokungezwa ohlelweni lwesimende ngaphansi kwesisekelo sokugcina umswakama odakeni.
Ngamafuphi, ukusebenza kweI-HPMCKu-mortar ikakhulukazi kuhlanganisa: ukugcinwa kwamanzi, ukuqina, ukwandisa isikhathi sokusetha, ukufaka umoya kanye nokuthuthukisa amandla okubopha okuqinile, njll.
Isikhathi sokuthunyelwe: Disemba 19-2022