Aiki da aikace-aikace na cellulose ether

Aiki da aikace-aikace na cellulose ether

Cellulose ethershi ne polymer Semi-Synthetic wanda ba na ionic ba, mai narkewa da ruwa biyu, a cikin masana'antu daban-daban da ke haifar da rawar ya bambanta, kamar a cikin kayan gini na sinadarai, yana da tasiri mai yawa: matakin ④ fim ɗin yin fim ⑤ ɗaure; A cikin masana'antar PVC, yana da emulsifier, mai rarrabawa; A cikin masana'antar harhada magunguna, nau'in nau'in ɗaure ne da jinkirin sakin kayan kwarangwal, saboda cellulose yana da tasirin haɗaɗɗun nau'ikan, don haka shine filin da aka fi amfani dashi. Da ke ƙasa na mayar da hankali kan amfani da ether cellulose a cikin nau'ikan kayan gini da kuma rawar.

1, fentin latex:

A cikin layin fenti na latex, don zaɓarhydroxyethyl cellulose, Babban ƙayyadaddun ƙayyadaddun danko shine RT3000-50000cps, yayi daidai da ƙayyadaddun HBR250, madaidaicin sashi shine gabaɗaya 1.5 ‰-2‰. Babban aikin hydroxyethyl a cikin fenti na latex shine lokacin kauri, hana gelation pigment, ba da gudummawa ga rarrabuwar pigment, latex, kwanciyar hankali, kuma yana iya haɓaka danko na abubuwan da aka gyara, yana ba da gudummawa ga haɓaka aikin gini: Hydroxyethyl cellulose yana da sauƙin amfani, duka ruwan sanyi da ruwan zafi za a iya narkar da su, kuma ƙimar PH ba ta shafar su. Ana iya amfani da shi cikin aminci tsakanin ƙimar PI 2 da 12. Hanyoyin amfani sune kamar haka:

I. Kai tsaye ƙara:

Don wannan hanyar, ya kamata a zaɓi jinkirin hydroxyethyl cellulose tare da lokacin narkewa fiye da mintuna 30. Hanyar ita ce kamar haka: (1) don samun high ya kamata a yanke blender ganga mai ƙididdige ruwa mai tsabta (2) ƙarfin ciki na mutane ya fara haɗuwa da sauri, hydroxyethyl uniform sannu a hankali a lokaci guda don shiga cikin maganin (3) Ci gaba da motsawa har sai duk kayan granular rigar (4) don haɗawa da sauran additives da additives alkaline (5) har sai an narkar da duk hydroxyethyl gaba ɗaya, ƙara sauran sassan dabara, niƙa zuwa samfurin da aka gama.

ⅱ. An sanye shi da mama:

Wannan hanya na iya zaɓar mai sauri - cellulose mai narkewa, kuma yana da mildew - sakamako mai shaida. Amfanin wannan hanyar shine yana da mafi girman sassauci kuma ana iya ƙara shi kai tsaye cikin fenti na latex, hanyar shirye-shiryen daidai yake da matakan ①-④.

ⅲ, tare da porridge don amfani:

Tun da kwayoyin kaushi ne matalauta kaushi (insoluble) ga hydroxyethyl, su za a iya amfani da su shirya porridge. Abubuwan da ake amfani da su na kwayoyin halitta da aka fi amfani da su sune kwayoyin ruwa a cikin nau'in fenti na latex, irin su ethylene glycol, propylene glycol da masu samar da fim (irin su diethylene glycol butyl acetate), porridge hydroxyethyl cellulose za a iya ƙara shi kai tsaye zuwa fenti, bayan ƙarawa. ci gaba da motsawa har sai ya narke gaba daya.

2, goge bango a cikin putty:

A halin yanzu, kasar Sin tana cikin mafi yawan juriya na ruwa na birnin, juriya ga swab na kare muhalli putty da mutane suka dauka da muhimmanci, a cikin 'yan shekarun da suka gabata, saboda abin da aka yi da mannen gini yana haskaka iskar iskar formaldehyde ga lafiyar jama'a, gini. an yi manne da polyvinyl barasa da formaldehyde acetal dauki. Don haka wannan abu a hankali yana kawar da mutane, kuma maye gurbin wannan kayan shine jerin samfurori na cellulose ether, wato, haɓaka kayan gini na kare muhalli, cellulose shine kawai nau'in abu a halin yanzu.

A cikin ruwa resistant putty ya kasu kashi busassun foda putty da putty manna iri biyu, iri biyu na putty kullum zabi modified methyl cellulose da hydroxypropyl methyl iri biyu, danko ƙayyadaddun ne kullum a 3000-60000cps tsakanin mafi dace, a cikin babban rawar da. cellulose a cikin putty shine riƙewar ruwa, haɗin gwiwa, lubrication da sauran tasiri.

Saboda tsarin sa na kowane masana'anta ba iri ɗaya bane, wasu sune calcium mai launin toka, calcium mai haske, farin siminti, wasu sune gypsum foda, calcium mai launin toka, calcium mai haske, da dai sauransu, don haka ƙayyadaddun danko da shigar da adadin cellulose na hanyoyin biyu. ba iri ɗaya ba ne, yawan adadin ƙara shine 2‰-3‰ ko makamancin haka.

A busa bango a gundura da yaro yi, bango tushe yana da wasu absorbent (bulo bango na bibulous kudi ya 13%, da kankare ne 3-5%), guda biyu tare da evaporation na waje duniya, don haka idan a gundura da yaro. asarar ruwa da sauri, zai haifar da tsagewa ko abin da ya faru kamar pollen, ta yadda ƙarfin putty ya raunana, saboda haka, bayan shiga cellulose ether zai magance wannan matsala. Amma ingancin kayan cikawa, musamman ingancin calcium mai launin toka shima yana da mahimmanci. Saboda yawan dankowar cellulose, hakanan yana kara habaka buoyancy na putty, kuma yana gujewa al'amuran kwararar da ke rataye a cikin ginin, kuma yana da dadi da kuma ceton aiki bayan gogewa.

A cikin foda foda, ether cellulose ya kamata a kara da shi daidai da ma'anar masana'anta, samar da shi, amfani da shi ya fi dacewa, kayan cikawa da busassun busassun foda za a iya haɗa su daidai, ginin ya fi dacewa, rarraba ruwa na wurin, nawa tare da nawa. 

3, kankare turmi:

A kankare turmi, da gaske cimma matuƙar ƙarfi, dole ne a yi siminti hydration dauki gaba daya, musamman a lokacin rani, a cikin gina kankare turmi ruwa asarar da sauri, gaba daya hydrated matakan a kan curing ruwa, wannan hanya shi ne sharar gida na ruwa albarkatun kuma. m aiki, da key ne kawai a kan surface, ruwa da hydration ne har yanzu ba gaba daya, don haka hanyoyin da za a warware wannan matsala, Add takwas ruwa-retaining wakili cellulose a turmi kankare zabi hydroxypropyl methyl ko methyl cellulose, danko bayani dalla-dalla a 20000- 60000cps tsakanin, ƙara 2% -3%. Game da, da ruwa riƙe kudi za a iya ƙara zuwa fiye da 85%, a turmi kankare hanyar yin amfani da busassun foda a ko'ina gauraye bayan bakin cikin ruwa iya zama.

4, gypsum fenti, gypsum bonding, gypsum caulking:

Tare da saurin bunƙasa masana'antar gine-gine, buƙatun jama'a na sabbin kayan gini kuma yana ƙaruwa kowace rana, saboda karuwar wayar da kan jama'a game da kiyaye muhalli da kuma ci gaba da inganta aikin gine-gine, samfuran gypsum ɗin siminti ya kasance cikin sauri. A halin yanzu kayan gesso na gama-gari yana da stucco gesso, caking gesso, saita gesso, tile caking agent don jira.

Plastering plaster wani nau'i ne na bango mai kyau na ciki da kayan aikin rufin rufin, tare da shi yana goge bangon yana da laushi kuma mai santsi, kar a sauke foda da haɗin tushe da ƙarfi, babu fashewar sabon abu, kuma yana da aikin rigakafin wuta; Adhesive gypsum sabon nau'i ne na ginin katako mai haske, gypsum a matsayin kayan tushe, da nau'i-nau'i daban-daban na ƙara ƙarfin bakin da aka yi da kayan manne, ya dace da kowane nau'in kayan bangon ginin inorganic tsakanin haɗin gwiwa, tare da rashin guba. , m, farkon ƙarfin sauri saitin, haɗin gwiwa shine ginin ginin, toshe kayan tallafi na gini; Gypsum dinki mai cike da kayan kwalliya shine farantin gypsum tsakanin kayan cika gibin da bango, cikewar tsaga.

Wadannan samfuran gypsum suna da kewayon ayyuka daban-daban, ban da gypsum da filaye masu alaƙa da su don taka rawa, babban batun shine ƙarin ƙari na ether cellulose yana taka rawar gani. Domin gesso ya rabu yana da ba tare da gesso na ruwa ba da kashi ɗaya na rabin gesso, gesso daban-daban ya bambanta da tasirin aikin samfurin, yana ƙaruwa sosai, yana kare ruwa, sannu a hankali daidaita ingancin da ke ƙayyade kayan gini na gesso. Matsalolin gama gari na waɗannan kayan shine fashewar drum, ƙarfin farko bai kai ba, don magance wannan matsalar, shine zaɓi nau'in matsalar hanyar amfani da cellulose da retarder fili, a wannan yanayin, zaɓi na gaba ɗaya na methyl ko hydroxypropyl methyl. 30000-60000cps, ƙara adadin shine 1.5% - 2%. Tsakanin, mayar da hankali na cellulose shine riƙewar ruwa da jinkirin sa mai.

Duk da haka, a cikin wannan don dogara ga cellulose ether kamar yadda retarder bai kai ba, dole ne kuma ƙara citric acid retarder bayan amfani da gauraye ba zai shafi ƙarfin farko ba.

Yawan riƙe ruwa gabaɗaya yana nufin adadin asarar ruwa na halitta idan babu shayar da ruwa na waje. Idan bango ya bushe, tushen tushe yana sha ruwa kuma ƙawancen yanayi yana sa kayan suyi asarar ruwa da sauri, sannan kuma za a sami ganga mara amfani da sabon abu.

Wannan hanyar yin amfani da ita ita ce haɗuwa da busassun foda, idan shirye-shiryen bayani zai iya komawa zuwa hanyar shiri na bayani.

5, turmi mai rufi

Turmi mai hana ruwa wani sabon nau'in kayan katanga na ciki ne a arewacin China. Abun bango ne da aka haɗa ta kayan daɗaɗɗen thermal, turmi da ɗaure. A cikin wannan abu, cellulose yana taka muhimmiyar rawa wajen haɗawa da haɓaka ƙarfi. Gabaɗaya, an zaɓi methyl cellulose tare da babban danko (kimanin 10,000 CPS), kuma adadin shine gabaɗaya tsakanin 2‰ da 3‰. Ana amfani da hanyar hadawa busassun foda.

6, wakilin sadarwa

Wakilin dubawa shine HPMC20000cps, mai ɗaure tayal ya fi 60000cps, kuma ana amfani da wakili mai mahimmanci azaman thickener, wanda zai iya inganta ƙarfin ƙarfi da ƙarfin kibiya.