Cellulose etherwani polymer ne wanda ba na ionic ba, wanda yake narkewa cikin ruwa kuma yana narkewa cikin ruwa. Yana da tasiri daban-daban a masana'antu daban-daban. Misali, a cikin kayan gini na sinadarai, yana da tasirin haɗin gwiwa masu zuwa: ① wakilin riƙe ruwa ② mai kauri ③ kadarar daidaita ④ kadarar samar da fim ⑤ mai ɗaurewa; a cikin masana'antar polyvinyl chloride, yana da emulsifier da mai watsawa; a cikin masana'antar magunguna, wakili ne mai ɗaurewa da buffering. Yana fitar da kayan kwarangwal, da sauransu, saboda cellulose yana da tasirin haɗin gwiwa iri-iri, don haka filayen aikace-aikacensa suma sun fi yawa. Na gaba, zan mai da hankali kan amfani da aikin cellulose ether a cikin kayan gini na kare muhalli.
1. A fenti mai kama da latex
A masana'antar fenti na latex, ya kamata a zaɓi hydroxyethyl cellulose. Babban ƙayyadadden ɗanko shine RT30000-50000, kuma yawan da aka yi amfani da shi gabaɗaya shine kusan 1.5-2. Babban aikin hydroxyethyl a cikin fenti na latex shine ya yi kauri, hana jan launi, taimakawa wajen wargajewa, latex, da kwanciyar hankali na launin, da kuma ƙara ɗanko na kayan, wanda ke da amfani ga aikin daidaita ginin: hydroxyethyl Ethyl cellulose ya fi dacewa a yi amfani da shi. Ana iya narkar da shi a cikin ruwan sanyi da ruwan zafi, kuma ƙimar pH ba ta shafar shi. Ana iya amfani da shi tsakanin ƙimar pH na 2 da 12. Akwai hanyoyi uku na amfani:
I. Ƙara kai tsaye a cikin samarwa:
Wannan hanyar ya kamata a zaɓi nau'in hydroxyethyl cellulose delay - hydroxyethyl cellulose tare da lokacin narkewa na fiye da mintuna 30. Matakan sune kamar haka: ① A ƙara wani adadin ruwa mai tsarki a cikin akwati mai kayan aiki mai ƙarfi ② A fara juyawa akai-akai a ƙaramin gudu, kuma a lokaci guda a hankali a ƙara rukunin hydroxyethyl a cikin maganin daidai gwargwado ③A ci gaba da juyawa har sai an jiƙa dukkan kayan granular ④A ƙara wasu kayan taimako da ƙarin kayan abinci na asali, da sauransu. ⑤A juya har sai dukkan rukunin hydroxyethyl sun narke gaba ɗaya, sannan a ƙara wasu abubuwan haɗin a cikin dabarar a niƙa har sai samfurin ya ƙare.
Ⅱ. An saka shi da ruwan inabi mai ƙarfi don amfani daga baya:
Wannan hanyar za ta iya zaɓar nau'in nan take, kuma tana da cellulose mai hana mildew. Amfanin wannan hanyar shine tana da sassauci mafi girma kuma ana iya ƙara ta kai tsaye zuwa fenti na latex. Hanyar shiri iri ɗaya ce da matakan ①-④.
Ⅲ. A shirya shi a cikin porridge don amfani daga baya:
Tunda sinadaran da ke narkewar halitta ba su da ƙarfi sosai (ba sa narkewa) ga hydroxyethyl, ana iya amfani da waɗannan sinadaran don ƙirƙirar porridge. Abubuwan da ke narkewar halitta da aka fi amfani da su sune ruwayen halitta a cikin tsarin fenti na latex, kamar ethylene glycol, propylene glycol, da kuma abubuwan da ke samar da fim (kamar diethylene glycol butyl acetate). Ana iya ƙara porridge hydroxyethyl cellulose kai tsaye zuwa fenti. Ci gaba da juyawa har sai ya narke gaba ɗaya.
2. A cikin goge putty a bango
A halin yanzu, a yawancin biranen ƙasarmu, mutane suna ɗaukar putty mai jure ruwa da kuma jure wa muhalli. Ana samar da shi ne ta hanyar acetal reaction na vinyl alcohol da formaldehyde. Saboda haka, mutane suna kawar da wannan abu a hankali, kuma ana amfani da samfuran cellulose ether don maye gurbin wannan abu. Wato, don haɓaka kayan gini masu lafiya ga muhalli, cellulose shine kawai kayan.
A cikin putty mai jure wa ruwa, an raba shi zuwa nau'i biyu: busasshen foda putty da putty manna. Daga cikin waɗannan nau'ikan putty guda biyu, gabaɗaya ana zaɓar hydroxypropyl methylcellulose, kuma ƙayyadaddun danko gabaɗaya yana tsakanin 80,000-90,000. Matsayin shine riƙe ruwa, haɗawa, shafawa da sauransu.
Tunda dabarun putty na masana'antun daban-daban sun bambanta, wasu sune launin toka-toka, calcium mai sauƙi, simintin fari, da sauransu, wasu kuma sune foda gypsum, calcium mai launin toka, calcium mai sauƙi, da sauransu, don haka ƙayyadaddun bayanai, danko da shigar cellulose a cikin dabarar guda biyu suma sun bambanta. Adadin da aka ƙara shine kusan 3-5.
A cikin ginin gogewar bango, tunda saman bangon yana da wani matakin sha ruwa (yawan sha na bangon tubali shine 13%, kuma ƙimar sha na siminti shine 3-5%), tare da ƙafewar duniyar waje, idan putty ya rasa ruwa da sauri, Zai haifar da tsagewa ko cire foda, wanda zai raunana ƙarfin putty. Saboda haka, ƙara cellulose ether zai magance wannan matsalar. Amma ingancin cikawa, musamman ingancin alli na toka shima yana da matuƙar mahimmanci. Saboda yawan danko na cellulose, ana ƙara yawan buɗaɗɗen putty, kuma ana guje wa yanayin raguwa yayin gini, kuma yana da daɗi da kuma adana aiki bayan gogewa.
3. Turmi siminti
A cikin turmi na siminti, domin cimma ƙarfin da ya dace, dole ne a cika ruwa da siminti. Musamman a lokacin aikin bazara, turmi na siminti yana rasa ruwa da sauri, kuma ana amfani da ma'aunin cikakken ruwa don kiyayewa da yayyafa ruwa. Barnar albarkatu da rashin dacewa da aiki. Mabuɗin shine cewa ruwan yana kan saman ne kawai, kuma ruwan da ke cikinsa har yanzu bai cika ba. Saboda haka, mafita ga wannan matsala ita ce a ƙara hydroxypropyl methylcellulose tsakanin 150,000 da 200,000 zuwa simintin ...
4. A cikin yin amfani da gypsum, haɗa gypsum, haɗa gypsum
Tare da ci gaban masana'antar gine-gine cikin sauri, buƙatar mutane na sabbin kayan gini yana ƙaruwa kowace rana. Saboda ƙaruwar wayar da kan jama'a game da kare muhalli da kuma ci gaba da inganta ingancin gini, kayayyakin gypsum na siminti sun bunƙasa cikin sauri. A halin yanzu, kayayyakin gypsum da aka fi amfani da su sune gypsum na shafa siminti, gypsum mai ɗaurewa, gypsum mai ɗaurewa, da kuma manne na tayal.
Gypsum ɗin shafa fenti abu ne mai inganci na shafa fenti a bango da rufi na ciki. Fuskar bangon da aka shafa fenti da ita tana da kyau kuma mai santsi, ba ta zubar da foda, an haɗa ta sosai da tushe, ba ta da fashewa da faɗuwa, kuma tana da aikin hana wuta; gypsum ɗin da aka haɗa wani sabon nau'in manne ne na allon haske na gini abu ne mai mannewa da aka yi da gypsum a matsayin kayan tushe da kuma ƙara wasu ƙari. Ya dace da haɗawa tsakanin kayan bangon gini daban-daban marasa tsari. Ba shi da guba, ba shi da ɗanɗano, fasali kamar ƙarfi da sauri, saurin daidaitawa, da kuma ɗaurewa mai ƙarfi, abu ne mai tallafi don ginin bangarori da ginin tubali; wakilin caulking na gypsum shine cike gibin da ke tsakanin bangarorin gypsum da kuma cikawa don gyara bango da fashe-fashe.
Waɗannan kayayyakin gypsum suna da jerin ayyuka daban-daban. Baya ga rawar da gypsum da sauran abubuwan da suka shafi shi, babban batun shine ƙarin abubuwan da aka ƙara na cellulose ether suna taka muhimmiyar rawa. Saboda gypsum an raba su zuwa gypsum mai ruwa da hemihydrate gypsum, gypsum daban-daban yana da tasiri daban-daban akan aikin samfurin, don haka kauri, riƙe ruwa da jinkiri yana ƙayyade ingancin kayan ginin gypsum. Matsalar da aka saba samu ta waɗannan kayan ita ce rami da fashewa, kuma ba za a iya isa ga ƙarfin farko ba. Don magance wannan matsalar, shine zaɓar nau'in cellulose da hanyar amfani da mahaɗin na retarder. A wannan batun, gabaɗaya ana zaɓar methyl ko hydroxypropyl methyl 30000. -60000, adadin ƙarin yana tsakanin 1.5‰–2‰, kuma cellulose yana mai da hankali kan riƙe ruwa da kuma rage man shafawa.
Duk da haka, ba zai yiwu a dogara da cellulose ether a matsayin mai hana ruwa ba, kuma yana da mahimmanci a ƙara sinadarin citric acid don haɗawa da amfani ba tare da shafar ƙarfin farko ba.
Rike ruwa gabaɗaya yana nufin yawan ruwan da za a rasa ta halitta ba tare da shan ruwan waje ba. Idan bangon ya bushe sosai, shanye ruwa da kuma tururin da ke fitowa daga saman ƙasa zai sa kayan su rasa ruwa da sauri, kuma za su iya yin ramuka da tsagewa.
Ana haɗa wannan hanyar amfani da foda busasshe. Idan kun shirya maganin, don Allah ku duba hanyar shirya maganin.
5. Turmi mai hana zafi
Turmi mai rufi wani sabon nau'in kayan rufi ne na ciki a bangon yankin arewa. Kayan bango ne da aka haɗa ta hanyar kayan rufi, turmi da kuma binder. A cikin wannan kayan, cellulose yana taka muhimmiyar rawa wajen haɗawa da ƙara ƙarfi. Gabaɗaya zaɓi methyl cellulose mai yawan danko (kimanin 150,000), yawan da ake buƙata yawanci yana tsakanin 2‰-3‰), kuma hanyar amfani da shi ita ce haɗa busasshen foda.
6. Wakilin hulɗa
Ya kamata sinadarin haɗin gwiwa ya zama HPNC20000, kuma manne na tayal ya kamata ya zama fiye da 100,000. Ya kamata a yi amfani da sinadarin haɗin gwiwa a matsayin mai kauri, wanda zai iya inganta ƙarfin juriya da ƙarfin hana kibiya.
Lokacin Saƙo: Afrilu-28-2024