Cellulose ether wani nau'in polymer ne mai yawan sinadarai masu narkewar sinadarai marasa ionic. Yana da nau'ikan kaddarorin ruwa guda biyu da ke narkewa da kuma waɗanda ke tushen narkewa. Yana da tasiri daban-daban a masana'antu daban-daban. Misali, a cikin kayan gini na sinadarai, yana da tasirin haɗaka masu zuwa: ①Agent mai riƙe ruwa ②Kauri ③Leveing ④Mai samar da fim ⑤Binder; a cikin masana'antar PVC, yana da emulsifier da warwatsewa; a cikin masana'antar magunguna, yana da manne kuma Saboda cellulose yana da tasirin haɗaka iri-iri, shi ma shine mafi yawan amfani. A ƙasa zan mayar da hankali kan amfani da aikin cellulose ethers a cikin kayan gini masu lafiya ga muhalli.
1. A fenti mai kama da latex
A masana'antar fenti na latex, ya kamata a zaɓi hydroxyethyl cellulose. Babban ƙayyadaddun ɗanko shine RT30000-50000cps, 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 gelation na pigment, taimakawa wajen watsawar pigment, latex, da kwanciyar hankali, kuma yana iya inganta ɗanko na abubuwan da ke ciki da kuma taimakawa wajen daidaita aikin gini: 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 masu zuwa:
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 amfani sune kamar haka: ① A ƙara wani adadin ruwa mai tsarki a cikin akwati mai mai tayar da hankali mai ƙarfi ② A fara juyawa akai-akai a ƙaramin gudu, kuma a lokaci guda a hankali a hankali a ƙara rukunin hydroxyethyl a cikin maganin ③ A ci gaba da juyawa har sai an jiƙa dukkan kayan granular ④ A ƙara wasu ƙarin abubuwa da ƙarin abubuwan alkaline, da sauransu. ⑤ A juya har sai dukkan rukunin hydroxyethyl sun narke gaba ɗaya, A ƙara sauran sinadaran a cikin girke-girke a niƙa har sai sun ƙare.
Ⅱ. An haɗa shi da giya mai ƙarfi:
Wannan hanyar za ta iya zaɓar nau'in nan take, kuma tana da tasirin maganin ƙwayoyin cuta. 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. Don shirya kayan da suka dace da hatsi:
Tunda sinadaran da ke narkewar halitta ba su da ƙarfi sosai (ba sa narkewa) ga ƙungiyoyin hydroxyethyl, ana iya ƙera su da waɗannan sinadaran. 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 fim ɗin da aka yi amfani da su (kamar diethylene glycol butyl acetate). Ana iya ƙara porridge hydroxyethyl cellulose kai tsaye a cikin fenti. Ci gaba da juyawa har sai ya narke gaba ɗaya.
2, goge bututun bango
A halin yanzu, putty mai hana ruwa da kuma jure wa gogewa a yawancin biranen ƙasarmu mutane ne suka fi daraja shi. A cikin 'yan shekarun nan, saboda putty ɗin da aka yi da manne na gini yana fitar da iskar formaldehyde kuma yana lalata lafiyar mutane, manne na gini an yi shi ne da polymer. Ana shirya shi ne ta hanyar acetal reaction na vinyl alcohol da formaldehyde. Saboda haka, mutane suna kawar da wannan abu a hankali, kuma ana maye gurbin samfuran cellulose ether da wannan kayan, wato, haɓaka kayan gini masu kare muhalli, cellulose shine kawai kayan da ake amfani da su a yanzu.
A cikin putty mai jure wa ruwa, an raba shi zuwa busasshen foda putty da putty manna. Daga cikin waɗannan nau'ikan putty guda biyu, galibi ana zaɓar methyl cellulose da hydroxypropyl methyl. Matsakaicin ɗanko yawanci yana tsakanin 30000-60000cps. Babban ayyukan cellulose a cikin putty sune riƙe ruwa, haɗawa da shafawa.
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 dabarun biyu suna zaɓar ƙayyadaddun ƙwayoyin cellulose, danko da shigar ciki. Adadin ƙarin shine kusan 2-3.
A cikin gina gogewar bango, saboda saman bangon yana da takamaiman shan ruwa (yawan shan ruwa na bangon tubali shine 13%, kuma ƙimar shan ruwa na siminti shine 3-5%), tare da ƙafewar duniyar waje, idan putty ya rasa ruwa da sauri, zai haifar da tsagewa ko cire foda da sauran abubuwan da suka faru, ta haka ne ya raunana ƙarfin putty. Saboda wannan dalili, ƙara cellulose ether zai magance wannan matsalar. Amma ingancin cikawa, musamman ingancin calcium na lemun tsami, shima yana da matuƙar mahimmanci. Saboda cellulose yana da ɗanko sosai, yana kuma ƙara yawan buɗaɗɗen putty, yana guje wa yin lanƙwasa yayin gini, kuma yana da daɗi kuma yana adana aiki bayan gogewa.
3. Turmi siminti
A cikin turmi na siminti, domin a cimma ƙarfin ƙarshe, dole ne a cika simintin da ruwa, musamman a lokacin ginin bazara, turmi na siminti yana rasa ruwa da sauri, kuma ana ɗaukar matakan cikakken ruwa don kiyayewa da yayyafa ruwa. Sharar albarkatu da rashin aiki mai kyau, mabuɗin shine ruwan yana kan saman ne kawai, kuma ruwan da ke cikinsa har yanzu bai cika ba, don haka mafita ga wannan matsala ita ce a ƙara hydroxypropyl methyl cellulose ko methyl cellulose a cikin simintin ...
4. A cikin yin amfani da filastar, haɗa filastar da kuma haɗa filastar
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 na haɗa siminti, gypsum na saka siminti, manne na tayal da sauransu.
Filastar Stucco wani nau'in kayan shafa mai inganci ne ga bangon ciki da rufin gida. Bangon da aka yi wa fenti da shi suna da kyau kuma suna da santsi, ba sa zubar da foda, suna ɗaure sosai ga substrate, ba su da fashewa da faɗuwa, kuma suna da juriya ga wuta; filastar haɗa wani nau'in filasta ne. Sabon nau'in manne na allon haske na gini abu ne mai manne 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, yana da halaye na ƙarfi da wuri, saurin daidaitawa da ƙarfi, kuma abu ne mai tallafawa don gina allunan gini da tubalan;
Waɗannan kayayyakin gypsum suna da jerin ayyuka daban-daban, ban da rawar da gypsum da sauran abubuwan da ke da alaƙa da su, babban batun shine cewa ƙarin cellulose ether auxiliary yana taka muhimmiyar rawa. Tunda gypsum an raba shi zuwa anhydrite da hemihydrate gypsum, gypsum daban-daban suna da tasiri daban-daban akan aikin samfur, don haka kauri, riƙe ruwa da jinkiri suna ƙayyade ingancin kayan gini na gypsum. Matsalar da aka saba da ita ta waɗannan kayan ita ce fashewar ramuka, kuma ba za a iya isa ga ƙarfin farko ba. Don magance wannan matsalar, matsalar zaɓar nau'in cellulose da hanyar amfani da haɗin gwiwa na retarder ce. A wannan batun, gabaɗaya ana zaɓar methyl ko hydroxypropyl methyl 30000. –60000cps, adadin ƙarin yana tsakanin 1.5‰–2‰, abin da cellulose ke mayar da hankali a kai shine riƙe ruwa, jinkiri da 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 da shi don kada ƙarfin farko ya shafi.
Yawan riƙe ruwa gabaɗaya yana nufin asarar ruwa ta halitta idan babu ruwan waje. Idan bangon ya bushe sosai, shanye ruwa da kuma tururin ruwa na halitta a saman tushe 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 an shirya maganin, don Allah a duba hanyar shirya maganin.
5. Turmi mai rufi
Turmi mai hana zafi wani sabon nau'in kayan hana zafi ne na ciki a bango a yankin arewa. Kayan bango ne da aka yi da kayan hana zafi, turmi da kuma binder. A cikin wannan kayan, cellulose yana taka muhimmiyar rawa wajen haɗa shi da ƙara ƙarfi. Gabaɗaya zaɓi methyl cellulose mai yawan danko (kimanin 10000eps), yawan da ake buƙata yawanci yana tsakanin 2‰-3‰), kuma hanyar amfani ita ce hanyar haɗa foda busasshe.
6. Wakilin hulɗa
Wakilin haɗin gwiwa shine HPNC20000cps, kuma manne na tayal ya fi 60000cps. A cikin wakilin haɗin gwiwa, galibi ana amfani da shi azaman mai kauri, wanda zai iya inganta ƙarfin juriya da juriyar kibiya.
Lokacin Saƙo: Nuwamba-02-2022