Yaya muhimmancin ingancin cellulose ether zuwa turmi

Menene tasirin cellulose daban-daban akan plaster of Paris?

Ana iya amfani da carboxymethyl cellulose da methyl cellulose a matsayin abubuwan riƙe ruwa don filastar, amma tasirin riƙe ruwa na carboxymethyl cellulose ya fi ƙasa da na methyl cellulose, kuma carboxymethyl cellulose ya ƙunshi gishirin sodium, don haka bai dace da filastar paris ba. Yana da tasirin rage gudu kuma yana rage ƙarfin filastar paris. Methyl cellulose shine cakuda mai kyau ga kayan siminti na gypsum wanda ke haɗa riƙe ruwa, kauri, ƙarfafawa, da viscosifying, sai dai cewa wasu nau'ikan suna da tasirin rage gudu lokacin da yawan ya fi na carboxymethyl cellulose girma. Saboda wannan dalili, yawancin kayan gelling na gypsum suna amfani da hanyar haɗawacellulose carboxymethylkumamethyl cellulose, waɗanda ba wai kawai suna nuna halayensu ba (kamar tasirin jinkirin carboxymethyl cellulose, tasirin ƙarfafa methyl cellulose), kuma suna nuna fa'idodinsu na gama gari (kamar riƙe ruwa da tasirin kauri). Ta wannan hanyar, ana iya inganta aikin riƙe ruwa na kayan siminti na gypsum da cikakken aikin kayan siminti na gypsum, yayin da ake kiyaye ƙarin farashi a mafi ƙanƙanta.

Yaya muhimmancin danko na methyl cellulose ether ga turmi na gypsum?

Danko muhimmin siga ne na aikin ether na methyl cellulose.

Gabaɗaya dai, idan aka ƙara yawan danko, to, tasirin riƙe ruwa na turmi gypsum zai fi kyau. Duk da haka, idan aka ƙara yawan danko, to, nauyin kwayoyin halitta na methyl cellulose ether, da kuma raguwar narkewarsa zai yi mummunan tasiri ga ƙarfi da aikin ginin turmi. Yayin da danko ya fi girma, to, tasirin kauri a turmi zai fi bayyana, amma ba daidai yake ba. Yayin da danko ya fi girma, to, turmi mai danshi zai fi ƙarfi. A lokacin gini, ana bayyana shi a matsayin mannewa ga abin gogewa da kuma mannewa mai yawa ga substrate. Amma ba shi da amfani a ƙara ƙarfin tsarin turmi mai danshi da kansa. Bugu da ƙari, a lokacin gini, aikin hana sag na turmi mai danshi ba a bayyane yake ba. Akasin haka, wasu ethers na matsakaici da ƙarancin danko amma waɗanda aka gyara suna da kyakkyawan aiki wajen inganta ƙarfin tsarin turmi mai danshi.

Yaya muhimmancin ingancin cellulose ether zuwa turmi?

Fineness kuma muhimmin ma'aunin aiki ne na methyl cellulose ether. Ana buƙatar MC da ake amfani da shi don busasshen turmi ya zama foda mai ƙarancin ruwa, kuma fineness ɗin yana buƙatar kashi 20% zuwa 60% na girman barbashi ya zama ƙasa da mita 63. Fineness yana shafar narkewar methyl cellulose ether. MC mai kauri yawanci yana da granular, wanda yake da sauƙin warwatsewa da narkewa a cikin ruwa ba tare da haɗuwa ba, amma saurin narkewa yana da jinkiri sosai, don haka bai dace da amfani da shi a cikin busasshen turmi na foda ba. Wasu samfuran gida suna da flocculent, ba su da sauƙin warwatsewa da narkewa a cikin ruwa, kuma suna da sauƙin haɗuwa. A cikin busasshen turmi na foda, MC yana warwatse tsakanin kayan siminti kamar tarawa, filler filler da siminti, kuma foda mai kyau kawai zai iya guje wa haɗar methyl cellulose ether lokacin haɗawa da ruwa. Lokacin da aka ƙara MC da ruwa don narke tarawa, yana da matukar wahala a warwatse da narke.MCba wai kawai yana ɓatarwa ba ne, har ma yana rage ƙarfin turmi na gida. Idan aka shafa irin wannan busasshen turmi a babban yanki, saurin turmi na gida zai ragu sosai, kuma tsagewa za su bayyana saboda lokutan warkarwa daban-daban. Ga turmi da aka fesa tare da ginin injiniya, buƙatar tauri ya fi girma saboda ɗan gajeren lokacin haɗawa.

Ingancin MC kuma yana da wani tasiri a kan riƙe ruwa. Gabaɗaya, ga ethers na methyl cellulose masu ɗanko iri ɗaya amma suna da ɗanko daban-daban, a ƙarƙashin adadin ƙari iri ɗaya, mafi ƙanƙanta mafi ƙanƙanta mafi kyawun tasirin riƙe ruwa.