Nau'in Methyl Cellulose Ether
A. Hydroxypropyl methylcellulose (HPMC) an yi shi ne da auduga mai tsafta mai tsafta a matsayin ɗanyen abu, wanda aka keɓe musamman a ƙarƙashin yanayin alkaline.
B. Hydroxyethyl methyl cellulose (HEMC), ether ba na ionic cellulose ether, wani farin foda ne, mara wari da m.
C. Hydroxyethylcellulose (HEC) wani nau'in surfactant ne wanda ba na ionic ba, fari a bayyanarsa, mara wari da rashin ɗanɗano kuma foda mai sauƙi.
Na sama su ne wadanda ba ionic cellulose ethers, da ionic cellulose ethers (irin su carboxymethyl cellulose (CMC)).
Lokacin amfani da busassun turmi foda, saboda ionic cellulose (CMC) ba shi da kwanciyar hankali a gaban ions alli, da wuya a yi amfani da shi a cikin tsarin gelling na inorganic tare da siminti da lemun tsami a matsayin kayan siminti. A wasu wurare a kasar Sin, Wasu bangon bangon ciki da aka sarrafa tare da sitaci da aka gyara a matsayin babban kayan siminti da Shuangfei foda kamar yadda filler ke amfani da CMC a matsayin thickener, amma saboda wannan samfurin yana da sauƙi ga mildew kuma ba shi da ruwa, an cire shi a hankali. ta kasuwa .
A halin yanzu, mafi yawan amfani da ethers cellulose a cikin kayan busassun busassun turmi na gida ana kuma kiran su hydroxypropyl methylcellulose ether (HPMC) da hydroxyethyl methylcellulose ether (HEMC). Don samfuran da ke da amfani daban-daban, adadin ether ɗin cellulose shima ya bambanta, kamar ƙarancin 0.02% kamar turmi bango zuwa 0.1%. Irin su plastering turmi, babba zai iya zama daga 0.3% zuwa 0.7% kamar tile m.
Abubuwan da ke cikin Cellulose Ether
❶ Cellulose ether yana da kyakkyawan tanadin ruwa a cikin turmi. Aikin riqewar ruwansa na iya hana abin da ake amfani da shi don shayar da ruwa da yawa da sauri da kuma hana fitar ruwa, ta yadda za a tabbatar da isasshen ruwa lokacin da siminti ya sami ruwa. Yana iya hana turmi bushewa da fashewa yadda ya kamata saboda saurin asarar ruwa, ta yadda turmin ya sami tsawon lokacin gini.
Gabaɗaya magana, riƙewar ruwa na siminti slurry yana ƙaruwa tare da haɓaka abun ciki na ether cellulose. Mafi girman danko na ƙarar ether cellulose, mafi kyawun riƙewar ruwa.
❷ Tasirin kauri na ether cellulose na iya sarrafa turmi don cimma daidaito mafi kyau, inganta haɗin kai na turmi, cimma tasirin anti-sag, inganta aikin aiki, da haɓaka aikin ginin sosai.
❸ Cellulose ether na iya inganta rigar danko na turmi mai laushi sosai, yana tabbatar da cewa rigar turmi yana da tasiri mai kyau akan nau'i daban-daban.
❹ Cellulose ether muhimmanci inganta bond ƙarfi na turmi, kuma zai iya tabbatar da isasshen lokacin ruwa don cikakken hydrate da siminti ko da a cikin wani babban yanayin zafi, don haka tabbatar da mafi bondability na turmi.
Filin aikace-aikacen cellulose ether
tushen siminti:
⑴, putty, ⑵, plastering turmi, ⑶, waterproof turmi, ⑷, caulking wakili, ⑸, plastering turmi, ⑹, fesa turmi, ⑺, ado turmi, ⑻, tayal m, ⑼, siminti, Karkashin ruwa kai-le ⑾, Masonry turmi, ⑿, turmi gyara, ⒀, thermal insulation slurry, ⒁, EIFS thermal rufi bonding turmi, ⒂, non-shrinkage grouting abu.
Sauran kayan gini:
⑴, turmi mai hana ruwa, ⑵, turmi mai kashi biyu.
Tare da haɓakar busassun busassun turmi, ether cellulose ya zama mahimmancin simintin siminti admixture. Duk da haka, akwai nau'o'in iri da ƙayyadaddun bayanai na cellulose ether, kuma ingancin tsakanin batches har yanzu yana canzawa. Lokacin amfani da shi, kuna buƙatar kula da:
1. Halayen aiki na turmi da aka gyara suna da alaƙa da haɓakar danko na ether cellulose. Ko da yake samfuran da ke da ɗanko mai ƙima suna da ɗanƙon ɗanko na ƙarshe, saboda jinkirin rushewa, yana ɗaukar lokaci mai tsawo don samun ɗanko na ƙarshe; Bugu da kari , The cellulose ether tare da m barbashi daukan lokaci mai tsawo don samun karshe danko, don haka samfurin tare da mafi girma danko ba dole ba ne da mafi alhẽri aiki halaye.
2. Saboda iyakancewar digiri na polymerization na cellulose ether albarkatun kasa, matsakaicin danko na ether cellulose kuma yana iyakance.
Lokacin aikawa: Fabrairu-02-2023