Cellulose ether shine polymer Semi-synthetic wanda ba na ionic ba, wanda yake da ruwa mai narkewa kuma mai narkewa. Yana da tasiri daban-daban a masana'antu daban-daban. Misali, a cikin kayan gini na sinadarai, yana da abubuwan da suka hada da abubuwa masu zuwa: ① wakili mai riƙe ruwa ② thickener ③ matakin kadarorin ④ kayan aikin fim ⑤ ɗaure; a cikin masana'antar polyvinyl chloride, yana da emulsifier da watsawa; a cikin masana'antar harhada magunguna, wakili ne mai ɗaure da buffering Saki kayan kwarangwal, da dai sauransu, saboda cellulose yana da nau'ikan tasirin abubuwa daban-daban, don haka filayen aikace-aikacen su ma sun fi yawa. Na gaba, zan mayar da hankali kan amfani da aikin cellulose ether a cikin kayan gini na kare muhalli.
1. A cikin launi na latex
A cikin masana'antar fenti na latex, don zaɓar hydroxyethyl cellulose, ƙayyadaddun ƙayyadaddun daidaitaccen danko shine RT30000-50000cps, wanda yayi daidai da ƙayyadaddun HBR250, kuma ƙimar tunani gabaɗaya kusan 1.5‰-2‰. Babban aikin hydroxyethyl a cikin fenti na latex shine yin kauri, hana gelation na pigment, taimakawa watsawar pigment, kwanciyar hankali na latex, da haɓaka danko na abubuwan da aka gyara, wanda ke ba da gudummawa ga haɓaka aikin ginin: Hydroxyethyl cellulose ya fi dacewa don amfani. Ana iya narkar da shi a cikin ruwan sanyi da ruwan zafi, kuma ƙimar pH ba ta shafe shi ba. Ana iya amfani da shi cikin aminci tsakanin ƙimar PI 2 da 12. Hanyoyin amfani sune kamar haka:
(1) Ƙara kai tsaye cikin samarwa:
Don wannan hanyar, yakamata a zaɓi nau'in jinkirin hydroxyethyl cellulose, kuma ana amfani da hydroxyethyl cellulose tare da lokacin rushewa fiye da mintuna 30. Matakan sune kamar haka: ① Sanya wani adadin ruwa mai tsafta a cikin akwati sanye take da babban mai tayar da hankali. Ana jiƙa duk kayan granular ④ Ƙara sauran abubuwan ƙarawa da ƙari na asali, da sauransu. narkar da, sa'an nan Ƙara wasu sassa a cikin dabara da niƙa har sai da samfurin.
(2) An sanye shi da mahaifiyar giya don amfani daga baya:
Wannan hanya na iya zaɓar nau'in nan take, kuma yana da tasirin anti-mildew cellulose. Amfanin wannan hanyar shine yana da mafi girman sassauci kuma ana iya ƙara shi kai tsaye zuwa fenti na latex. Hanyar shiri iri ɗaya ce da matakan ①-④.
(3), an sanya shi cikin porridge don amfani daga baya:
Tun da kwayoyin kaushi ne matalauta kaushi (insoluble) ga hydroxyethyl, wadannan kaushi za a iya amfani da su tsara porridge. Abubuwan da aka fi amfani da su na kwayoyin halitta sune ruwayen ruwa a cikin kayan fenti na latex, irin su ethylene glycol, propylene glycol, da masu yin fim (irin su diethylene glycol butyl acetate). Ana iya ƙara porridge hydroxyethyl cellulose kai tsaye zuwa fenti. Ci gaba da motsawa har sai an narkar da gaba daya.
2. A cikin bango scraping putty
A halin yanzu, a mafi yawan biranen ƙasara, ɗigon ruwa mai jure ruwa da kuma goge-goge da ke da alaƙa da muhalli mutane sun sami ƙimar gaske. An samar da shi ta hanyar amsawar acetal na barasa vinyl da formaldehyde. Sabili da haka, mutane suna kawar da wannan abu a hankali, kuma ana amfani da samfuran ether na cellulose don maye gurbin wannan abu. Wato don haɓaka kayan gini masu dacewa da muhalli, a halin yanzu cellulose shine abu ɗaya kawai.
A cikin ruwa mai jure ruwa, an raba shi zuwa nau'i biyu: busassun busassun busassun busassun busassun busassun busassun busassun busassun busassun busassun busassun busassun ruwa da kuma man da aka saka. Daga cikin waɗannan nau'ikan putty guda biyu, methyl cellulose da aka gyara da hydroxypropyl methyl yakamata a zaɓi. Ƙididdigar danko gabaɗaya tsakanin 30000-60000cps. Babban ayyuka na cellulose a cikin putty shine riƙewar ruwa, haɗin gwiwa da lubrication.
Tun da putty dabara na daban-daban masana'antun ne daban-daban, wasu su ne launin toka alli, haske alli, farin ciminti, da dai sauransu, da kuma wasu su ne gypsum foda, launin toka alli, haske alli, da dai sauransu, don haka dalla-dalla, danko da shigar azzakari cikin farji na cellulose a cikin . dabaru guda biyu kuma sun bambanta. Adadin da aka ƙara shine kusan 2‰-3‰.
A cikin gina bango scraping putty, tun da tushe surface na bango yana da wani mataki na ruwa sha (yawan sha ruwa bangon tubali ne 13%, da kuma ruwa sha ruwa na kankare ne 3-5%). haɗe tare da ƙawancen waje na waje, idan putty ya rasa ruwa da sauri , Zai haifar da raguwa ko cire foda, wanda zai raunana ƙarfin putty. Saboda haka, ƙara cellulose ether zai magance wannan matsala. Amma ingancin filler, musamman ingancin ash calcium shima yana da mahimmanci. Saboda yawan dankowar cellulose, an kuma inganta buoyancy na putty, kuma ana guje wa abubuwan da ke faruwa a lokacin gini, kuma yana da kyau da kuma ceton aiki bayan gogewa.
Ya fi dacewa don ƙara ether cellulose a cikin foda. Samuwarta da amfaninta sun fi dacewa. Za a iya haɗa filler da ƙari a ko'ina cikin busassun foda.
3. Kankare turmi
A cikin kankare turmi, don cimma ƙarfin ƙarshe, simintin dole ne ya cika ruwa sosai. Musamman a lokacin aikin rani, turmi na kankare yana asarar ruwa da sauri, kuma ana amfani da matakan cikakken hydration don kula da yayyafa ruwa. Almubazzaranci da aiki maras dacewa, mabuɗin shine ruwan yana saman ƙasa ne kawai, kuma ruwa na cikin gida bai cika ba, don haka maganin wannan matsalar shine a ƙara ma'aunin ruwa guda takwas a cikin simintin turmi, gaba ɗaya zaɓi hydroxypropyl methyl. ko methyl Cellulose, ƙayyadaddun danko yana tsakanin 20000-60000cps, kuma adadin ƙari shine 2% -3%. Ana iya ƙara yawan riƙe ruwa zuwa fiye da 85%. Hanyar da ake amfani da ita a cikin simintin turmi shine a haɗa busasshen foda daidai gwargwado a zuba a cikin ruwa.
4. A gypsum plastering, bonding gypsum, caulking gypsum
Tare da saurin bunƙasa masana'antar gine-gine, buƙatun mutane na sabbin kayan gini kuma yana ƙaruwa kowace rana. Saboda karuwar wayar da kan mutane game da kare muhalli da ci gaba da inganta ingantaccen gini, samfuran gypsum siminti sun haɓaka cikin sauri. A halin yanzu, samfuran gypsum na yau da kullun sune plaster gypsum, gypsum bonded, gypsum inlaid, da tile m.
Gilashin gypsum abu ne mai inganci don bangon ciki da rufi. Fuskar bangon da aka shafa da shi yana da kyau da santsi. Sabuwar manne allon haske na ginin wani abu ne mai ɗorewa da aka yi da gypsum azaman kayan tushe da ƙari daban-daban. Ya dace da haɗin kai tsakanin kayan bangon ginin inorganic daban-daban. Ba mai guba ba ne, maras banƙyama, ƙarfin farko da saiti mai sauri, haɗin gwiwa mai ƙarfi da sauran halaye, kayan tallafi ne don ginin katako da ginin toshe; gypsum caulking wakili ne mai rata tsakanin allunan gypsum da mai gyara ga bango da fashe.
Waɗannan samfuran gypsum suna da jerin ayyuka daban-daban. Bugu da ƙari ga rawar gypsum da masu cikawa masu alaƙa, mahimmancin batun shine cewa ƙarar ether na cellulose yana taka muhimmiyar rawa. Tun da gypsum ya kasu kashi gypsum anhydrous da hemihydrate gypsum, gypsum daban-daban yana da tasiri daban-daban akan aikin samfurin, don haka thickening, riƙewar ruwa da retardation yana ƙayyade ingancin kayan gini na gypsum. Matsalar gama gari na waɗannan kayan shine fashe da fashe, kuma ƙarfin farko ba zai iya isa ba. Don magance wannan matsala, shine zaɓi nau'in cellulose da hanyar amfani da fili na retarder. Dangane da wannan, methyl ko hydroxypropyl methyl 30000 an zaɓi gabaɗaya. -60000cps, adadin ƙarin shine 1.5% -2%. Daga cikin su, cellulose yana mai da hankali kan riƙe ruwa da jinkirtar da man shafawa.
Duk da haka, ba shi yiwuwa a dogara da ether cellulose a matsayin mai retarder, kuma wajibi ne a ƙara citric acid retarder don haɗuwa da amfani ba tare da rinjayar ƙarfin farko ba.
Riƙewar ruwa gabaɗaya yana nufin adadin ruwan da za a yi asarar ta halitta ba tare da shayar da ruwa na waje ba. Idan bango ya bushe sosai, shayar da ruwa da ƙawancen yanayi a kan ƙasan tushe zai sa kayan suyi asarar ruwa da sauri, kuma raguwa da fashe kuma za su faru.
Ana haxa wannan hanyar amfani da busassun foda. Idan kun shirya bayani, don Allah koma zuwa hanyar shirye-shiryen maganin.
5. Turmi rufin thermal
Turmi rufi sabon nau'in kayan rufe bangon ciki ne a yankin arewa. Abun bango ne da aka haɗa ta kayan rufewa, turmi da ɗaure. A cikin wannan abu, cellulose yana taka muhimmiyar rawa wajen haɗawa da ƙara ƙarfi. Gabaɗaya zaɓi methyl cellulose tare da babban danko (kimanin 10000eps), sashi shine gabaɗaya tsakanin 2 ‰-3‰), kuma hanyar amfani shine hadawar busasshen foda.
6. Interface wakili
Zaɓi HPNC 20000cps don wakilin dubawa, zaɓi 60000cps ko fiye don mannen tayal, kuma mayar da hankali kan mai kauri a cikin ma'aunin mu'amala, wanda zai iya haɓaka ƙarfin ƙarfi da ƙarfin kibiya.
Lokacin aikawa: Fabrairu-17-2023