Menene riƙewar ruwa na methyl cellulose ether (MC)

Menene riƙewar ruwa na methyl cellulose ether (MC)

Amsa: Matsayin riƙe ruwa yana ɗaya daga cikin mahimman bayanai don auna ingancin methyl cellulose ether, musamman ma a cikin bakin bakin ciki na ginin siminti da turmi na tushen gypsum. Ingantattun riƙon ruwa na iya hana al'amarin na asarar ƙarfi da fashewa ta hanyar bushewa da yawa da rashin isasshen ruwa. Kyakkyawan riƙewar ruwa na methyl cellulose ether a ƙarƙashin yanayin zafi mai zafi yana ɗaya daga cikin mahimman alamomi don bambanta aikin methyl cellulose ether. A ƙarƙashin yanayi na al'ada, yawancin ethers na methyl cellulose na yau da kullun suna rage riƙe ruwa yayin da zafin jiki ya tashi. Lokacin da zafin jiki ya tashi zuwa 40 ° C, ajiyar ruwa na methyl cellulose ethers na kowa yana raguwa sosai, wanda yake da mahimmanci a wurare masu zafi da bushewa Kuma gina jiki na bakin ciki a gefen rana a lokacin rani zai yi tasiri sosai. Duk da haka, yin sama don rashin riƙewar ruwa ta hanyar babban sashi zai haifar da babban danko na kayan aiki saboda yawan adadin, wanda zai haifar da rashin jin daɗi ga ginin.

Riƙewar ruwa yana da matukar mahimmanci don haɓaka tsarin taurin tsarin gelling ma'adinai. A karkashin aikin cellulose ether, ruwa yana sannu a hankali ya saki zuwa tushe Layer ko iska na tsawon lokaci mai tsawo, don haka tabbatar da cewa siminti (ciminti ko gypsum) yana da isasshen lokaci don yin hulɗa da ruwa kuma a hankali ya taurare.

Menene kaddarorin methyl cellulose ether?

Amsa: Ana ƙara ƙaramin adadin methyl cellulose ether, kuma takamaiman aikin turmi na gypsum zai inganta sosai.

(1) Daidaita daidaito

Methyl cellulose ether ana amfani dashi azaman mai kauri don daidaita daidaiton tsarin.

(2) Daidaita bukatar ruwa

A cikin tsarin turmi na gypsum, buƙatar ruwa shine muhimmin ma'auni. Abubuwan buƙatun ruwa na asali, da fitarwar turmi mai alaƙa, ya dogara da ƙirar turmi gypsum, watau adadin farar ƙasa, perlite, da sauransu. Haɗin methyl cellulose ether zai iya daidaita buƙatun ruwa da turmi na turmi gypsum yadda ya kamata.

(3) Riƙe ruwa

Riƙewar ruwa na methyl cellulose ether, wanda zai iya daidaita lokacin buɗewa da tsarin coagulation na tsarin turmi gypsum, don daidaita lokacin aiki na tsarin; biyu methyl cellulose ether iya sannu a hankali saki ruwa a kan wani dogon lokaci Ikon tabbatar da yadda ya kamata bonding tsakanin samfurin da substrate.

(4) Gyara rheology

Bugu da kari na methyl cellulose ether iya yadda ya kamata daidaita rheology na plastering gypsum tsarin, game da shi inganta aikin yi: gypsum turmi yana da mafi kyau workability, mafi anti-sag yi, babu mannewa tare da gina kayan aikin da kuma mafi girma pulping yi, da dai sauransu.

Yadda za a zabi dace methyl cellulose ether?

Amsa: Methyl cellulose ether kayayyakin da daban-daban halaye bisa ga etherification hanya, mataki na etherification, danko na ruwa bayani, jiki Properties kamar barbashi fineness, solubility halaye da gyare-gyare hanyoyin. Don samun sakamako mafi kyau na amfani, ya zama dole don zaɓar madaidaicin alamar ether cellulose don filayen aikace-aikace daban-daban, kuma zaɓaɓɓen alamar methyl cellulose ether dole ne ya dace da tsarin turmi da aka yi amfani da shi.

Methyl cellulose ethers suna samuwa a cikin viscosities daban-daban don dacewa da buƙatu daban-daban. Methyl cellulose ether zai iya taka rawa ne kawai bayan an narkar da shi, kuma adadin narkarwarsa dole ne ya dace da filin aikace-aikacen da tsarin gini. Kyakkyawan samfurin foda ya dace da tsarin busassun busassun turmi (kamar feshin filasta). Mafi kyawun barbashi na methyl cellulose ether na iya tabbatar da saurin rushewa, ta yadda za a iya aiwatar da kyakkyawan aikinsa yadda ya kamata a cikin ɗan gajeren lokaci bayan samuwar rigar turmi. Yana ƙara daidaito da riƙe ruwa na turmi a cikin ɗan gajeren lokaci. Wannan fasalin ya dace musamman don ginin injina, saboda gabaɗaya, lokacin haɗuwar ruwa da busassun busassun turmi yana da ɗan gajeren lokaci yayin aikin injiniya.

Menene riƙewar ruwa na methyl cellulose ether?

Amsa: Mafi mahimmancin aiki na nau'o'i daban-daban na methyl cellulose ether (MC) shine ikon riƙe ruwa a cikin tsarin kayan gini. Don samun kyakkyawan aiki, wajibi ne don kiyaye isasshen danshi a cikin turmi na dogon lokaci. Domin ruwa yana aiki azaman mai mai da sauran ƙarfi a tsakanin abubuwan da ba a haɗa su ba, ana iya kashe turmi mai sirara kuma ana iya yada turmi da aka yi wa plaster da trowels. Bangayen shaye-shaye ko fale-falen baya buƙatar riga-kafi bayan amfani da turmi da aka ƙara ether cellulose. Don haka MC na iya kawo sakamakon gini cikin sauri da tattalin arziki.

Don saitawa, kayan siminti irin su gypsum suna buƙatar shayar da ruwa. Matsakaicin adadin MC na iya kiyaye danshi a cikin turmi na dogon lokaci, ta yadda saitin da taurin zai iya ci gaba. Adadin MC da ake buƙata don samun isassun ƙarfin riƙe ruwa ya dogara ne akan shayar da tushe, abun da ke cikin turmi, kauri na turmi, buƙatun ruwa na turmi, da lokacin saita lokacin siminti.

Mafi girman girman barbashi na MC, da sauri turmi ya yi kauri.