1. Menene babban manufar HPMC?
Ana amfani da wannan samfurin azaman mai kauri, mai watsawa, ɗaure, mai haɓakawa, mai jurewa mai, filler, emulsifier da stabilizer a cikin masana'antar yadi.Hakanan ana amfani dashi ko'ina a cikin guduro roba, petrochemical, yumbu, takarda, fata, magani, masana'antar abinci da kayan kwalliya.
2. Menene aikin HPMC a ciki bango putty foda?
HPMC yana da ayyuka guda uku: sa foda don bangon ciki, kauri, kulle ruwa da gini.Tattaunawa: Methyl cellulose na iya tattarawa ta hanyar iyo ko ruwa mai ruwa don kiyaye daidaituwa da daidaiton ayyuka da hana gudana da ratayewa.Ruwan kullewa: Faɗin bangon ciki yana bushewa a hankali, kuma ƙaramar calcium lemun tsami yana nunawa a cikin amfani da ruwa.Ginin injiniya: Methyl cellulose yana da aikin wetting, wanda zai iya sa bangon bangon ciki ya sami kyakkyawan tsarin injiniya.HPMC baya shiga cikin canjin duk sinadarai, amma kawai yana shiga cikin sakewa.Inner bango putty foda, a kan bango, wani canji ne na sinadarai, saboda akwai sabon canjin sinadarai, ana cire foda na ciki na bango daga bangon, a niƙa, kuma a sake amfani da shi, Domin an samar da sabon sinadari (calcium bicarbonate) .Babban abubuwan da ke cikin foda mai launin toka sune: cakuda Ca (OH) 2, CaO da ƙaramin adadin CaCO3, CaO + H2O = Ca (OH) 2 —Ca (OH) 2 + CO2 = CaCO3↓+ H2O launin toka calcium A cikin ruwa da iska Karkashin aikin CO2, calcium carbonate yana samuwa, yayin da HPMC kawai ke riƙe da ruwa kuma yana taimakawa mafi kyawun amsawar calcium mai launin toka, kuma ba ya shiga cikin kowane hali.
3. Yadda za a yi hukunci da ingancin HPMC sauƙi da ilhama?
(1) Fari: Ko da yake fari ba zai iya tantance ko HPMC yana da sauƙin amfani ba, kuma idan an ƙara mai haske a cikin tsarin samarwa, zai shafi ingancinsa.Duk da haka, samfurori masu kyau suna da kyakkyawan fata.(2) Kyakkyawa: Mafi kyawun HPMC gabaɗaya raga 80 ne da raga 100, raga 120 ya ragu, kuma yawancin HPMC da ake samarwa a Hebei shine raga 80.Mafi kyawun fineness, mafi kyau a gaba ɗaya.(3) Watsawa: Sanya hydroxypropyl methylcellulose (HPMC) a cikin ruwa don samar da colloid mai haske, kuma duba yadda yake watsawa.Mafi girman watsawa, mafi kyau, yana nuna cewa akwai ƙarancin insoluble a ciki..Matsalolin na'urar da ke tsaye yana da kyau gabaɗaya, kuma na'urar da ke kwance ta fi muni, amma ba yana nufin ingancin injin ɗin ya fi na na'urar da ke kwance ba.Har yanzu ana ƙayyade ingancin samfur ta dalilai da yawa.(4) Matsakaicin: Mafi girman rabo, mafi nauyi mafi kyau.Babban ƙayyadaddun ƙayyadaddun ƙayyadaddun abu gabaɗaya shine saboda babban abun ciki na hydroxypropyl a cikinsa, kuma mafi girman abun ciki na hydroxypropyl, mafi kyawun riƙewar ruwa.
4. Menene ya kamata a kula da shi lokacin amfani da danko da zafin jiki na HPMC?
Dankowar HPMC ya yi daidai da yanayin zafi, wato, danko yana ƙaruwa yayin da zafin jiki ya ragu.Yawancin lokaci muna cewa dankowar samfur yana nufin sakamakon gwajin maganinsa na 2% na ruwa a zazzabi na digiri 20 na ma'aunin celcius.A cikin aikace-aikace masu amfani, a cikin yankunan da ke da babban bambancin zafin jiki tsakanin rani da hunturu, ya kamata a lura cewa an bada shawarar yin amfani da ƙananan danko a cikin hunturu, wanda ya fi dacewa don ginawa.In ba haka ba, lokacin da zafin jiki ya ragu, danko na cellulose zai karu, kuma hannun zai ji nauyi lokacin da aka goge.
5. Menene hanyoyin rushewar HPMC?
Hanyar narkar da ruwan zafi: Tun da HPMC ba a narkar da shi a cikin ruwan zafi, ana iya tarwatsa HPMC daidai a cikin ruwan zafi a matakin farko, sannan kuma da sauri narke lokacin da aka sanyaya.Hanyoyi guda biyu na al'ada an bayyana su kamar haka: 1).Adadin ruwan zafi da zafi zuwa kusan 70 ° C.A hankali ƙara hydroxypropyl methylcellulose tare da jinkirin motsawa, fara HPMC yana iyo a saman ruwa, sannan a hankali ya samar da slurry, da kwantar da slurry tare da motsawa.2).Ƙara 1/3 ko 2/3 na adadin ruwan da ake bukata a cikin akwati kuma zafi shi zuwa 70 ° C.Bisa ga hanyar 1), watsa HPMC don shirya ruwan zafi mai zafi;sa'an nan kuma ƙara sauran adadin ruwan sanyi zuwa ruwan zafi A cikin slurry, kwantar da cakuda bayan motsawa.Yadda ake hada foda: sai a hada hodar HPMC da sauran kayan gari masu yawa, sai a hada su sosai da blender, sannan a zuba ruwa a narkar da shi, sai a narkar da HPMC a wannan lokaci ba tare da takura ba, domin kowane dan kankanin lungu ne kadai. kadan daga cikin HPMC foda zai narke nan da nan idan ya hadu da ruwa.-Putty foda da turmi masana'antun amfani da wannan hanya.[Hydroxypropyl methyl cellulose (HPMC) ana amfani dashi azaman mai kauri da mai riƙe da ruwa a cikin turmi foda mai sakawa.]
6. Menenesashina HPMC kara a cikin putty foda?
Adadin HPMC da aka yi amfani da shi a ainihin aikace-aikacen ya bambanta dangane da yanayi, zafin jiki, ingancin ash ash na gida, tsarin sa foda, da "ingancin da abokan ciniki ke buƙata".Yawanci, yana tsakanin 4 kg zuwa 5 kg.Misali, foda a cikin kayan ado'>Beijing ya fi kilogiram 5;da putty foda a Guizhou yawanci 5 kg a lokacin rani da 4.5 kg a cikin hunturu;Adadin abin da ake karawa na Yunnan kadan ne, gaba daya kilogiram 3-4 da sauransu.
Lokacin aikawa: Nuwamba-13-2021