Methyl Hydroxyethyl Cellulose (MHEC) wanda aka narkar a cikin turmi mai jika

Methyl Hydroxyethyl Cellulose (MHEC)wani sinadari ne mai suna cellulose ether wanda ba ionic ba ne wanda ake amfani da shi sosai a cikin kayan gini, musamman a cikin turmi mai danshi, kuma yana taka muhimmiyar rawa. Narkewar ruwa da kuma tsarin kwayoyin halitta mai yawa suna sa ya zama ruwan da ke da danshi a cikin ruwa, yana ba turmi kyakkyawan kayan sarrafawa, riƙe ruwa da kuma daidaitawar gini.

1. Kayayyakin asali na MHEC

MHEC wani sinadari ne na cellulose ether wanda aka samar ta hanyar shigar da ƙungiyoyin methyl da hydroxyethyl cikin cellulose na halitta ta hanyar amsawar etherification. Yana da kyakkyawan narkewar ruwa, halayen samar da fim, riƙe ruwa da mannewa. Yana da karko a ƙarƙashin yanayin tsaka tsaki da alkaline kuma yana da kyakkyawan jituwa da muhalli da kuma amincin muhalli.

MHEC yana narkewa a cikin ruwan sanyi a zafin ɗaki don samar da maganin colloidal mai haske zuwa haske, kuma ba ya narkewa a cikin ruwan zafi ko mafi yawan sinadarai masu narkewa na halitta. Tsarin narkewarsa tsari ne na faɗaɗawa-watsawa-narkewa na zahiri, kuma baya haɗa da halayen sinadarai.

2. Tsarin narkar da MHEC a cikin turmi mai ruwa

A cikin turmi mai jika, yawanci ana ƙara MHEC a cikin busasshen cakuda a cikin foda, sannan a hankali yana narkewa yayin da ake ƙara ruwa da motsawa:

Mataki na farko - shan ruwa da kumburi: Barbashin MHEC suna sha ruwa kuma suna kumbura a saman bayan sun taɓa ruwa, suna samar da rufin gel.

Mataki na tsakiya - watsawa da kumburi: Tare da aikin motsawa, wani ɓangare na tsarin colloidal ya lalace, kuma MHEC ya fara bazuwa cikin tsarin gaba ɗaya.

Mataki na ƙarshe - cikakken narkewa: Bayan ci gaba da juyawa da kuma wani lokaci, MHEC za ta narke gaba ɗaya don samar da mafita mai ƙarfi ta polymer, wadda aka rarraba a ko'ina cikin turmi.

A aikace-aikace na zahiri, yawan narkewar MHEC zai shafi ƙarfin juyawa, zafin ruwa, girman barbashi, da sauran kayan da ke cikin dabarar (kamar siminti, gypsum, yashi, da sauransu). Kula da waɗannan sigogi yadda ya kamata na iya guje wa matsalar taruwa ko narkewar da ba ta cika ba.

3. Babban ayyuka na MHEC a cikin rigar turmi

3.1. Inganta riƙe ruwa

Babban tasirin MHEC shine inganta ƙarfin riƙe ruwa na turmi, rage fitar da ruwa cikin sauri, tsawaita lokacin amsawar ruwa ta siminti yadda ya kamata, ta haka ne inganta ƙarfin haɗin gwiwa da ƙarfi, da kuma hana fashewa da wuri.

3.2. Inganta aikin gini

Saboda ƙamshi da tasirin kauri na MHEC, turmi yana da kyakkyawan aiki, sassauci da kuma iya yaɗuwa, yana rage wahalar gini da kuma inganta inganci. Musamman a tsarin yin siminti da tayal, yana iya hana turmi faɗuwa da zamewa yadda ya kamata.

3.3. Inganta aikin haɗin gwiwa

Tsarin hanyar sadarwa ta colloidal da MHEC ta samar a cikin turmi yana ƙara ƙarfin haɗin gwiwa tsakanin turmi da matakin tushe, musamman lokacin gini a saman tsaye ko saman sama, yana hana turmi faɗuwa da kuma inganta amincin ginin.

3.4. Daidaita daidaito da ruwa

Ta hanyar daidaita adadin MHEC, ana iya sarrafa daidaito da halayen rheological na turmi mai jika, don haka yana da isasshen ruwa, wanda ya dace da gini, kuma ba zai shafi tasirin ƙera ba saboda yawan kwarara.

3.5. Inganta aikin hana zamewa

A aikace-aikace kamar manne tayal da turmi masu haɗawa, MHEC na iya hana zamewar turmi yadda ya kamata, inganta daidaiton wurin gini, da kuma biyan buƙatun gini na manne tsaye da manyan tayal.

4. Tasirin maganin MHEC akan aikin turmi

Adadin ƙarin MHEC yawanci ana sarrafa shi tsakanin 0.1% da 0.5% (bisa ga jimillar adadin busassun kayan). Tasirin allurai daban-daban akan aikin turmi sune kamar haka:

Ƙarancin amfani (<0.1%): riƙe ruwa ya ɗan inganta, amma ci gaban aikin gini ba a bayyane yake ba.

Matsakaicin allurai (0.2% ~ 0.4%): Mafi kyawun cikakken aiki, daidaitaccen haɓaka riƙe ruwa, aikin gini, da ƙarfin haɗin gwiwa.

Amfani da shi fiye da kima (>0.5%): Yana iya haifar da kauri sosai na turmi, rage ruwa, da kuma tsawaita lokacin saitawa.

Saboda haka, a cikin takamaiman ƙirar dabara, ya zama dole a ƙayyade mafi kyawun adadin ƙarin MHEC ta hanyar gwaje-gwaje don cimma ingantaccen tasirin amfani.

5. Haɗin gwiwa da sauran ƙari

Ana iya amfani da MHEC tare da wasu ƙarin abubuwa masu aiki, kamar:

Tare da foda mai narkewa (VAE): tare da haɓaka sassauci da ƙarfin haɗin turmi;

Tare da masu hana ruwa: jinkirta hydration na siminti, yi aiki tare da MHEC don inganta taga ginin;

Tare da abubuwan cikawa/ma'adanai: daidaita yanayin ruwa da haɓaka ƙarfi, daidaita tsarin turmi.

A matsayin muhimmin ƙari mai aiki a cikin turmi mai rigar,hydroxyethyl methylcellulose (MHEC) yana taka rawa da yawa wajen ƙara kauri, riƙe ruwa, haɓakawa da haɓaka gini a cikin tsarin turmi ta hanyar kyawawan halayensa masu narkewar ruwa. Wani ƙarin aiki ne mai mahimmanci a cikin kayan gini na zamani. Ta hanyar zaɓar samfura da adadin da aka yi a kimiyance, MHEC na iya inganta cikakken aikin turmi yadda ya kamata, biyan buƙatun yanayi daban-daban na gini, da kuma taimakawa wajen gina gine-gine mai kyau da kore.