1. Menene babban amfani da hydroxypropyl methylcellulose (HPMC)?
Amsa: Ana amfani da HPMC sosai a fannin kayan gini, shafi, resin roba, yumbu, magani, abinci, yadi, noma, kayan kwalliya, taba da sauran masana'antu. Ana iya raba HPMC zuwa matakin gini, matakin abinci da kuma matakin magunguna bisa ga manufar. A halin yanzu, yawancin kayayyakin gida suna da matakin gini. A fannin gini, ana amfani da foda putty sosai, kusan kashi 90% ana amfani da shi don foda putty, sauran kuma ana amfani da shi don turmi da manne na siminti.
2. Akwai nau'ikan hydroxypropyl methylcellulose (HPMC) da dama, kuma menene bambance-bambancen amfani da su?
Amsa: Ana iya raba HPMC zuwa nau'in nan take da nau'in narkewa mai zafi. Samfuran nan take suna watsuwa da sauri a cikin ruwan sanyi kuma suna ɓacewa cikin ruwa. A wannan lokacin, ruwan ba shi da ɗanɗano saboda HPMC yana warwatse ne kawai a cikin ruwa ba tare da narkewa na gaske ba. Kimanin mintuna 2, ɗanɗano na ruwan yana ƙaruwa a hankali, yana samar da colloid mai haske. Samfuran mai zafi, idan aka haɗu da ruwan sanyi, suna iya watsuwa da sauri a cikin ruwan zafi kuma suna ɓacewa a cikin ruwan zafi. Lokacin da zafin ya faɗi zuwa wani zafin jiki (samfurin kamfaninmu yana da digiri 65 Celsius), ɗanɗano yana bayyana a hankali har sai ya samar da colloid mai haske. Ana iya amfani da nau'in mai zafi kawai a cikin foda da turmi. A cikin manne da fenti na ruwa, za a sami wani abu na rukuni kuma ba za a iya amfani da shi ba. Nau'in nan take yana da fa'idodi da yawa. Ana iya amfani da shi a cikin foda da turmi na putty, da kuma manne da fenti na ruwa, ba tare da wani dalili ba.
3. Waɗanne hanyoyi ne ake amfani da su wajen narkar da hydroxypropyl methylcellulose (HPMC)?
Amsa: Hanyar narkar da ruwan zafi: Tunda HPMC ba ya narkar da ruwan zafi, ana iya wargaza HPMC daidai gwargwado a cikin ruwan zafi a matakin farko, sannan a narkar da shi da sauri lokacin sanyaya. An bayyana hanyoyi guda biyu na yau da kullun kamar haka:
1) A zuba ruwan zafi da ake buƙata a cikin akwati a dumama shi zuwa kimanin digiri 70 na Celsius. A hankali a zuba hydroxypropyl methylcellulose a hankali a hankali a juya shi, da farko HPMC ta yi iyo a saman ruwan, sannan a hankali ta samar da wani sinadari mai laushi, wanda aka sanyaya a lokacin da ake juyawa.
2), ƙara 1/3 ko 2/3 na adadin ruwan da ake buƙata a cikin akwati, sannan a dumama shi zuwa 70°C, a watsa HPMC bisa ga hanyar 1), sannan a shirya ruwan zafi; sannan a ƙara sauran ruwan sanyi a cikin ruwan zafi, an sanyaya cakuda bayan an juya.
Hanyar haɗa foda: a haɗa foda na HPMC da adadi mai yawa na sauran abubuwa masu ƙura, a haɗa sosai da mahaɗi, sannan a ƙara ruwa don narkewa, sannan a iya narkar da HPMC a wannan lokacin ba tare da haɗa shi ba, saboda akwai ƙaramin HPMC kawai a cikin kowace ƙaramin kusurwa Foda, zai narke nan da nan lokacin da ya taɓa ruwa. ——Masana'antun foda na Putty da turmi suna amfani da wannan hanyar. [Ana amfani da Hydroxypropyl methylcellulose (HPMC) azaman mai kauri da kuma wakilin riƙe ruwa a cikin turmi na putty. ]
4. Ta yaya za a tantance ingancin hydroxypropyl methylcellulose (HPMC) cikin sauƙi da fahimta?
Amsa: (1) Fari: Duk da cewa fari ba zai iya tantance ko HPMC yana da sauƙin amfani ba, kuma idan an ƙara sinadaran fari a lokacin samarwa, zai shafi ingancinsa. Duk da haka, yawancin samfuran masu kyau suna da farin fari mai kyau. (2) Tsantsar: Tsantsar HPMC gabaɗaya tana da raga 80 da raga 100, kuma raga 120 ƙasa da haka. Yawancin HPMC da ake samarwa a Hebei raga 80 ne. Mafi ƙanƙantar siffa, gabaɗaya, mafi kyau. (3) Watsa haske: sanya hydroxypropyl methylcellulose (HPMC) a cikin ruwa don samar da colloid mai haske, kuma duba watsa haske. Girman watsa haske, mafi kyau, yana nuna cewa akwai ƙarancin narkewa a cikinsa. . Shukewar reactors a tsaye gabaɗaya yana da kyau, kuma na reactors a kwance ya fi muni, amma ba yana nufin cewa ingancin reactors a tsaye ya fi na reactors a kwance kyau ba, kuma ingancin samfurin yana ƙaddara ta dalilai da yawa. (4) Takamaiman nauyi: Girman takamaiman nauyi, mafi nauyi mafi kyau. Takamaiman yana da girma, gabaɗaya saboda yawan sinadarin hydroxypropyl a cikinsa yana da yawa, kuma yawan sinadarin hydroxypropyl yana da yawa, riƙe ruwa ya fi kyau.
5. Nawa ne adadin hydroxypropyl methylcellulose (HPMC) a cikin foda na putty?
Amsa: Adadin HPMC da ake amfani da shi a aikace ya bambanta dangane da yanayi, zafin jiki, ingancin sinadarin calcium na gida, dabarar foda putty da "ingancin da abokan ciniki ke buƙata". Gabaɗaya, tsakanin kilogiram 4 zuwa 5. Misali: yawancin foda putty a Beijing shine kilogiram 5; yawancin foda putty a Guizhou shine kilogiram 5 a lokacin rani da kilogiram 4.5 a lokacin hunturu; adadin putty a Yunnan ƙarami ne, gabaɗaya kilogiram 3 zuwa 4, da sauransu.
6. Menene dacewar danko na hydroxypropyl methylcellulose (HPMC)?
Amsa: Garin putty gabaɗaya yana da yuan 100,000, kuma buƙatun turmi sun fi girma, kuma ana buƙatar yuan 150,000 don sauƙin amfani. Bugu da ƙari, mafi mahimmancin aikin HPMC shine riƙe ruwa, sannan kauri. A cikin garin putty, matuƙar riƙe ruwa yana da kyau kuma ɗanɗanon ya yi ƙasa (70,000-80,000), haka nan yana yiwuwa. Tabbas, mafi girman ɗanɗanon, mafi kyawun riƙe ruwa. Lokacin da ɗanɗanon ya wuce 100,000, ɗanɗanon zai shafi riƙe ruwa. Ba a ƙara yin hakan ba.
7. Menene manyan alamun fasaha na hydroxypropyl methylcellulose (HPMC)?
Amsa: Yawan sinadarin Hydroxypropyl da kuma danko, yawancin masu amfani suna damuwa da waɗannan alamomi guda biyu. Waɗanda ke da yawan sinadarin hydroxypropyl gabaɗaya suna da ingantaccen riƙe ruwa. Wanda ke da yawan danko yana da ingantaccen riƙe ruwa, idan aka kwatanta da (ba gaba ɗaya ba), kuma wanda ke da yawan danko ya fi kyau a yi amfani da shi a turmi na siminti.
8. Menene manyan kayan da ake amfani da su wajen samar da sinadarin hydroxypropyl methylcellulose (HPMC)?
Amsa: Babban kayan da ake amfani da su wajen samar da hydroxypropyl methylcellulose (HPMC): auduga mai tsafta, methyl chloride, propylene oxide, da sauran kayan da ake amfani da su wajen samar da caustic soda, acid, toluene, isopropanol, da sauransu.
9. Menene babban aikin amfani da HPMC a cikin foda na putty, kuma shin yana faruwa ne ta hanyar sinadarai?
Amsa: A cikin foda na putty, HPMC tana taka rawa guda uku na kauri, riƙe ruwa da ginawa. Kauri: Ana iya ƙara cellulose don dakatarwa da kuma kiyaye maganin iri ɗaya sama da ƙasa, da kuma tsayayya da lanƙwasawa. Riƙe ruwa: sa foda na putty ya bushe a hankali, kuma yana taimaka wa tokar calcium ta amsa ƙarƙashin aikin ruwa. Ginawa: Cellulose yana da tasirin shafawa, wanda zai iya sa foda na putty ya sami kyakkyawan tsari. HPMC ba ya shiga cikin duk wani halayen sinadarai, amma yana taka rawa kawai. Ƙara ruwa a cikin foda na putty da sanya shi a bango martanin sinadarai ne, saboda ana samar da sabbin abubuwa. Idan ka cire foda na putty a bango daga bango, ka niƙa shi zuwa foda, ka sake amfani da shi, ba zai yi aiki ba saboda an samar da sabbin abubuwa (calcium carbonate). Babban abubuwan da ke cikin foda na ash calcium sune: cakuda Ca(OH)2, CaO2 da ƙaramin adadin CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Calcium na ash yana cikin ruwa da iska A ƙarƙashin aikin CO2, ana samar da calcium carbonate, yayin da HPMC ke riƙe ruwa kawai, yana taimakawa wajen inganta amsawar ash calcium, kuma baya shiga cikin kowane martani da kansa.
10. HPMC wani sinadari ne na cellulose wanda ba ionic ba, to menene ba ionic ba?
Amsa: Gabaɗaya, non-ion wani abu ne da ba zai yi ion a cikin ruwa ba. Ionization yana nufin tsarin da ake raba electrolyte zuwa ions masu caji waɗanda za su iya motsawa cikin 'yanci a cikin wani takamaiman mai narkewa (kamar ruwa, barasa). Misali, sodium chloride (NaCl), gishirin da muke ci kowace rana, yana narkewa a cikin ruwa kuma yana yin ionize don samar da ions masu motsi kyauta (Na+) waɗanda ke da caji mai kyau da ions masu chloride (Cl) waɗanda ke da caji mara kyau. Wato, lokacin da aka sanya HPMC a cikin ruwa, ba zai rabu zuwa ions masu caji ba, amma yana wanzuwa a cikin nau'in ƙwayoyin halitta.
11. Menene alaƙar zafin gel na hydroxypropyl methylcellulose da shi?
Amsa: Zafin gel na HPMC yana da alaƙa da yawan methoxy ɗinsa, ƙarancin yawan methoxy ↓, mafi girman zafin gel ↑.
12. Akwai wata alaƙa tsakanin digon foda na putty da HPMC?
Amsa: Asarar foda na foda yana da alaƙa da ingancin sinadarin ash, kuma ba shi da alaƙa da HPMC. Ƙarancin sinadarin calcium na sinadarin toka da kuma rashin daidaiton CaO da Ca(OH)2 a cikin sinadarin toka zai haifar da asarar foda. Idan yana da alaƙa da HPMC, to idan HPMC ba shi da isasshen riƙe ruwa, zai kuma haifar da asarar foda. Don wasu dalilai, da fatan za a duba tambaya ta 9.
13. Menene bambanci tsakanin nau'in ruwan sanyi da kuma nau'in hydroxypropyl methylcellulose mai narkewa mai zafi a cikin tsarin samarwa?
Amsa: Ana yi wa nau'in ruwan sanyi na HPMC magani a saman da glyoxal, kuma yana warwatsewa da sauri a cikin ruwan sanyi, amma ba ya narkewa da gaske. Yana narkewa ne kawai lokacin da danko ya ƙaru. Ba a yi wa nau'in narke mai zafi magani da glyoxal ba. Idan adadin glyoxal ya yi yawa, watsawar zai yi sauri, amma danko zai ƙaru a hankali, kuma idan adadin ya ƙanƙanta, akasin haka zai kasance.
14. Menene ƙamshin hydroxypropyl methylcellulose (HPMC)?
Amsa: HPMC da aka samar ta hanyar narkewar abinci yana amfani da toluene da isopropanol a matsayin masu narkewa. Idan wankewar ba ta da kyau sosai, za a sami ɗan ƙamshi.
15. Yadda ake zaɓar hydroxypropyl methylcellulose (HPMC) da ya dace don dalilai daban-daban?
Amsa: Aiwatar da foda na putty: buƙatun ba su da yawa, kuma ɗanɗanon ya isa 100,000, wanda hakan ya isa. Abu mafi mahimmanci shine a kiyaye ruwa da kyau. Aiwatar da turmi: buƙatun da suka fi girma, ɗanɗanon da ya fi girma, 150,000 ya fi kyau. Aiwatar da manne: ana buƙatar samfuran nan take masu ɗanɗanon da ya fi girma.
16. Menene wani suna da ake kira hydroxypropyl methylcellulose?
Amsa: Hydroxypropyl Methyl Cellulose, Turanci: Hydroxypropyl Methyl Cellulose Taƙaitaccen Bayani: HPMC ko MHPC Lakabi: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
17. Amfani da HPMC a cikin foda na putty, menene dalilin kumfa a cikin foda na putty?
Amsa: A cikin foda na putty, HPMC tana taka rawa guda uku na kauri, riƙe ruwa da ginawa. Kada ku shiga cikin duk wani martani. Dalilan kumfa: 1. Sanya ruwa da yawa. 2. Ƙasan Layer ɗin ba ya bushe, kawai kurkura wani Layer a saman, kuma yana da sauƙin kumfa.
18. Menene dabarar foda mai tsami ga bangon ciki da na waje?
Amsa: Fodar putty ta ciki: Calcium mai nauyi 800KG, Calcium mai launin toka 150KG (sitaci ether, kore mai tsabta, ƙasan Pengrun, citric acid, polyacrylamide, da sauransu za a iya ƙara su yadda ya kamata)
Foda mai kauri a bango: siminti 350KG mai nauyi calcium 500KG quartz yashi 150KG foda latex 8-12KG cellulose ether 3KG sitaci ether 0.5KG zare na itace 2KG
Lokacin Saƙo: Disamba-13-2022