Matsayin hydroxypropyl methylcellulose HPMC a cikin rigar-mixed turmi

Turmi da aka haɗe da rigar yana nufin kayan siminti, tara mai kyau, haɗawa, ruwa da sassa daban-daban da aka ƙaddara bisa ga aiki. Dangane da wani kaso, bayan an auna shi aka gauraya a wurin hadawa, sai a kai shi wurin da ake amfani da shi ta hanyar babbar mota. Ajiye cakuda turmi a cikin akwati na musamman kuma amfani da shi a cikin ƙayyadadden lokacin. Ka'idar aiki na turmi mai gauraya rigar yayi kama da kankare na kasuwanci, kuma tashar hada-hadar kankare ta kasuwanci na iya samar da turmi mai gauraya lokaci guda.

1. Amfanin turmi mai hade da ruwa

1) Za a iya amfani da turmi da aka gauraya da shi kai tsaye bayan an kai shi wurin ba tare da sarrafa shi ba, amma turmin dole ne a adana shi a cikin akwati mai hana iska;

2) An shirya turmi mai hade da rigar a cikin masana'anta masu sana'a, wanda ke da amfani don tabbatarwa da sarrafa ingancin turmi;

3) Zaɓin kayan albarkatu don turmi mai hade da rigar yana da girma. Jimlar na iya zama bushe ko rigar, kuma baya buƙatar bushewa, don haka ana iya rage farashin. Bugu da kari, ana iya gaurayawan yashi mai yawa na injin roba da masana'antu ke samarwa kamar tokar kuda da dattin masana'antu irinsu karfen karfe da wutsiya na masana'antu, wanda ba kawai ceton albarkatu bane, har ma yana rage farashin turmi.

4) Wurin ginin yana da yanayi mai kyau da ƙarancin ƙazanta.

2. Lalacewar turmi mai hade da ruwa

1) Tun da turmi mai hade da ruwa yana hade da ruwa a cikin masana'antar samar da ƙwararrun ƙwararru, kuma yawan jigilar kayayyaki yana da girma a lokaci ɗaya, ba za a iya sarrafa shi da sassauƙa ba bisa ga ci gaban gini da amfani. Bugu da kari, turmi da aka gauraya da shi yana bukatar a ajiye shi a cikin wani kwandon da ba ya da iska bayan an kai shi wurin da ake aikin, don haka ana bukatar kafa tafki na toka a wurin;

2) Lokacin sufuri yana iyakance ta yanayin zirga-zirga;

3) Tun da aka adana turmi mai hade da rigar a kan ginin na dogon lokaci, akwai wasu buƙatu don aikin aiki, saita lokaci da kwanciyar hankali na aikin aiki na turmi.

Ana amfani da Hydroxypropyl methylcellulose azaman wakili mai riƙe da ruwa da kuma retarder na turmi siminti don yin turmi mai yuwuwa. An yi amfani da shi azaman mai ɗaure a cikin filasta, yana haɓaka haɓakawa kuma yana tsawaita lokacin aiki. Ayyukan riƙewar ruwa na hydroxypropyl methylcellulose HPMC yana hana slurry daga fashe saboda bushewa da sauri bayan aikace-aikacen, kuma yana haɓaka ƙarfi bayan taurin. Riƙewar ruwa muhimmin aiki ne na hydroxypropyl methylcellulose HPMC, kuma shi ma aikin da yawancin masana'antun turmi-mix na cikin gida ke kula da su. Abubuwan da ke shafar tasirin riƙon ruwa na turmi mai gauraya rigar sun haɗa da adadin adadin HPMC da aka ƙara, da ɗankowar HPMC, ƙarancin ɓangarorin, da zafin yanayin yanayin amfani.

Bayan an kai turmi ɗin da aka gauraya da shi zuwa wurin, dole ne a adana shi a cikin wani akwati da ba ya sha iska. Idan ka zaɓi akwati na ƙarfe, tasirin ajiya shine mafi kyau, amma zuba jari ya yi yawa, wanda ba shi da amfani ga yadawa da aikace-aikace; Kuna iya amfani da bulo ko tubalan gina tafkin toka, sannan ku yi amfani da turmi mai hana ruwa (yawan sha ruwa ƙasa da kashi 5%) don plaster saman, kuma jarin shine mafi ƙanƙanci. Duk da haka, plastering na turmi mai hana ruwa yana da matukar muhimmanci, kuma ya kamata a tabbatar da ingancin ginin da aka yi da shi. Zai fi kyau ƙara hydroxypropyl methylcellulose HPMC abu zuwa turmi don rage turmi fasa. Ƙasar kandami na toka ya kamata ya kasance yana da ƙayyadaddun matakan gangara don sauƙin tsaftacewa. Tafkin toka ya kamata ya kasance yana da rufin da ke da isasshen wuri don kariya daga ruwan sama da rana. Ana ajiye turmi a cikin tafkin toka, sannan a rufe saman tafkin gaba daya da kyallen roba don tabbatar da cewa turmin ya kasance a rufe.

Muhimmin rawar da hydroxypropyl methylcellulose HPMC a rigar-mix turmi yafi yana da uku al'amurran, daya ne mai kyau ruwa riƙe iya aiki, da sauran shi ne tasiri a kan daidaito da thixotropy na rigar-mix turmi, kuma na uku shi ne hulda da ciminti. Tasirin riƙewar ruwa na ether cellulose ya dogara ne akan shayar da ruwa na tushe mai tushe, abun da ke cikin turmi, kauri na turmi, buƙatar ruwa na turmi, da lokacin saitin kayan saiti. Mafi girman bayyana gaskiyar hydroxypropyl methylcellulose, mafi kyawun riƙewar ruwa.

Abubuwan da ke shafar riƙon ruwa na turmi-mix-mix sun haɗa da danko ether cellulose, ƙarin adadin, ƙarancin barbashi da zafin amfani. Mafi girman danko na ether cellulose, mafi kyawun aikin riƙe ruwa. Danko shine muhimmin siga na aikin HPMC. Don samfurin iri ɗaya, sakamakon ɗanko da aka auna ta hanyoyi daban-daban sun bambanta sosai, wasu ma sun ninka bambance-bambance. Sabili da haka, lokacin kwatanta danko, dole ne a aiwatar da shi tsakanin hanyoyin gwaji iri ɗaya, gami da zazzabi, rotor, da sauransu.

Gabaɗaya magana, mafi girman danko, mafi kyawun tasirin riƙewar ruwa. Duk da haka, mafi girma da danko da mafi girma da kwayoyin nauyi na HPMC, daidai da raguwa a cikin solubility zai yi mummunan tasiri a kan ƙarfi da ginin yi na turmi. Mafi girma da danko, mafi bayyananne tasirin thickening akan turmi, amma ba daidai ba ne kai tsaye. Mafi girma da danko, da karin danko da rigar turmi zai zama, wato, a lokacin ginawa, an bayyana shi a matsayin mai mannewa ga scraper da babban mannewa ga substrate. Amma ba taimako ba ne don ƙara ƙarfin tsarin jika da kanta. A lokacin gini, aikin anti-sag ba a bayyane yake ba. Akasin haka, wasu gyare-gyaren hydroxypropyl methylcellulose tare da matsakaici da ƙananan danko suna da kyakkyawan aiki wajen inganta ƙarfin tsarin jika.

A cikin rigar-mixed turmi, ƙarin adadin cellulose ether HPMC yana da ƙasa sosai, amma yana iya inganta aikin ginin da aka yi da rigar, kuma babban ƙari ne wanda ke shafar aikin ginin turmi. Zaɓin da ya dace na daidaitaccen hydroxypropyl methylcellulose yana da babban tasiri akan haɓaka aikin turmi-mixed rigar.


Lokacin aikawa: Afrilu-04-2023