1, Menene babban amfani da hydroxypropyl methyl cellulose (HPMC)?
HPMCAna amfani da shi sosai a 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 matakin likita ta hanyar amfani. A halin yanzu, yawancin matakin gini na gida, a matakin gini, yawan amfani da foda na putty yana da yawa, kusan kashi 90% ana amfani da shi don yin foda na putty, sauran kuma ana amfani da shi don yin turmi da manne na siminti.
2, hydroxypropyl methyl cellulose (HPMC) an raba shi zuwa da dama, menene bambanci a amfani da shi?
Ana iya raba HPMC zuwa nau'in mafita nan take da nau'in mafita mai zafi, samfurin nan take, wanda aka watsa cikin ruwan sanyi da sauri, ya ɓace a cikin ruwa, a wannan lokacin ruwan ba shi da ɗanko, saboda HPMC kawai yana warwatse a cikin ruwa, babu narkewa ta gaske. Kimanin mintuna 2, ɗankowar ruwan yana ƙaruwa a hankali, yana samar da colloid mai haske. Samfuran da ke narkewa da zafi, a cikin ruwan sanyi, ana iya warwatse su da sauri a cikin ruwan zafi, su ɓace a cikin ruwan zafi, lokacin da zafin ya faɗi zuwa wani zafin jiki, ɗankowa a hankali ya bayyana, har sai samuwar colloid mai haske. Ana iya amfani da maganin zafi kawai a cikin foda da turmi, a cikin manne da fenti na ruwa, za a sami wani abu na rukuni, ba za a iya amfani da shi ba. MISALI NA MAGANCEWA Nan take, JERIN AIKACE-AIKACE YA FI FAƊI, A GASANCE DA FODAR YARO DA TUMBI, KUMA A CIKIN MANTUWA DA SHAFAWA NA RUWA, DUK ANA IYA AMFANI DA SHI, BA TARE DA WANI HANYOYI BA.
3, hanyoyin narkewar hydroxypropyl methyl cellulose (HPMC) suna da waɗannan?
Hanyar narkar da ruwan zafi: Saboda HPMC ba ya narkar da ruwan zafi, don haka HPMC da wuri za a iya warwatsa shi daidai a cikin ruwan zafi, sannan a narkar da shi da sauri idan ya huce, an bayyana hanyoyi guda biyu na yau da kullun kamar haka:
1) A zuba ruwan zafi da ake buƙata a cikin akwati sannan a dumama shi zuwa kimanin digiri 70 a digiri 100. A hankali a zuba hydroxypropyl methylcellulose a hankali a hankali, HPMC ta fara shawagi a saman ruwan, sannan a hankali ta samar da slurry, a hankali a hankali a hankali a sanyaya slurry ɗin.
2), ƙara adadin da ake buƙata na 1/3 ko 2/3 na ruwa a cikin akwati, sannan a dumama zuwa 70℃, bisa ga hanyar 1), watsawar HPMC, shirya ruwan zafi; Sannan a ƙara sauran adadin ruwan sanyi a cikin ruwan zafi, a juya a sanyaya cakuda.
Hanyar haɗa foda: Ana haɗa foda na HPMC da sauran sinadarai masu yawa na foda, a haɗa su sosai da injin niƙa, bayan an ƙara ruwa don narkewa, to HPMC zai iya narkewa a wannan lokacin, amma ba haɗin kai ba, saboda kowace ƙaramin kusurwa, ƙaramin foda na HPMC kawai, ruwa zai narke nan take. – Kamfanonin samar da foda na Putty da turmi suna amfani da wannan hanyar. Ana amfani da Hydroxypropyl methyl cellulose (HPMC) azaman mai kauri da kuma wakilin riƙe ruwa a cikin turmi na putty.
4, yaya sauƙi da fahimta don tantance ingancin hydroxypropyl methyl cellulose (HPMC)?
(1) fari: kodayake fari ba zai iya tantance ko HPMC yana da sauƙin amfani ba, kuma idan aka ƙara shi a cikin tsarin samar da maganin fari, zai shafi ingancinsa. Duk da haka, kyawawan kayayyaki galibi fari ne.
(2) ƙanƙanta: ƙanƙanta HPMC gabaɗaya raga 80 da raga 100, ƙasa da manufa 120, Hebei HPMC galibi raga 80, ƙanƙanta ƙanƙanta, gabaɗaya mafi kyau.
(3) watsawa: hydroxypropyl methyl cellulose (HPMC) cikin ruwa, samuwar colloid mai haske, ganin watsawa, girman watsawa, mafi kyau, kayan da ba sa narkewa a ciki. Rarrabawar reactor a tsaye gabaɗaya yana da kyau, reactor a kwance ya fi muni, amma ba zai iya nuna cewa ingancin samar da reactor a tsaye ya fi na samar da reactor a kwance kyau ba, ingancin samfur yana ƙayyade ta dalilai da yawa.
(4) takamaiman nauyi: gwargwadon girman takamaiman nauyi, gwargwadon nauyin da ya fi. Fiye da mahimmanci, gabaɗaya saboda yawan sinadarin hydroxypropyl yana da yawa, yawan sinadarin hydroxypropyl yana da yawa, to riƙe ruwa ya fi kyau.
5, hydroxypropyl methyl cellulose (HPMC) a cikin adadin foda putty?
HPMC a zahirin amfani da ma'aunin, ta hanyar yanayin yanayi, zafin jiki, ingancin ash na calcium na gida, dabarar foda putty da "buƙatun abokin ciniki na inganci", kuma suna da bambanci. Gabaɗaya, tsakanin kilogiram huɗu zuwa biyar. Misali: Foda putty na Beijing, galibi ana sanya shi kilogiram 5; A Guizhou, yawancinsu suna da kilogiram 5 a lokacin rani da kilogiram 4.5 a lokacin hunturu. Yawan Yunnan ƙanana ne, gabaɗaya kilogiram 3 -4 da sauransu.
6, hydroxypropyl methyl cellulose (HPMC) nawa ne ya dace da danko?
Ku Gajiya Da Foda Ta Yara DUBU 100 JANARYA NE, BUKATAR A TUMFI TA FI TSAYI, ANA SON IYA YI AMFANI DA DUBU 150. Bugu da ƙari, mafi mahimmancin aikin HPMC shine riƙe ruwa, sannan kauri. A cikin foda mai laushi, matuƙar riƙe ruwa yana da kyau, ɗanɗanon yana da ƙasa (7-80,000), haka nan yana yiwuwa, ba shakka, ɗanɗanon ya fi girma, riƙe ruwa mai kama da juna ya fi kyau, idan ɗanɗanon ya fi 100, ɗanɗanon ba shi da tasiri sosai akan riƙe ruwa.
7, hydroxypropyl methyl cellulose (HPMC) menene manyan alamun fasaha?
Yawan sinadarin Hydroxypropyl da kuma danko, yawancin masu amfani suna damuwa da waɗannan fihirisa guda biyu. Yawan sinadarin Hydroxypropyl yana da yawa, riƙon ruwa gabaɗaya ya fi kyau. Danko, riƙon ruwa, dangi (amma ba cikakke ba) shi ma ya fi kyau, da danko, a cikin turmi na siminti ya fi kyau a yi amfani da wasu.
8, hydroxypropyl methyl cellulose (HPMC) menene manyan kayan amfanin gona?
Hydroxypropyl methyl cellulose (HPMC) manyan kayan da ake amfani da su: auduga mai tsafta, chloromethane, propylene oxide, sauran kayan da ake amfani da su, allunan alkali, acid, toluene, isopropyl alcohol da sauransu.
9, HPMC wajen amfani da foda mai tsami, menene babban aikin, ko dai sinadarai?
HPMC a cikin foda na putty, kauri, riƙe ruwa da kuma gina ayyuka uku. Kauri: Ana iya ƙara cellulose don yin dakatarwa, don haka maganin ya ci gaba da kasancewa iri ɗaya a sama da ƙasa, yana rataye da hana kwarara. Rike ruwa: sa foda na putty ya bushe a hankali, amsawar ash na calcium a ƙarƙashin aikin ruwa. Ginawa: Cellulose yana da tasirin shafawa, yana iya sa foda na putty ya yi kyau. HPMC ba ya shiga cikin duk wani halayen sinadarai, yana taka rawa kawai. Ruwan da aka ƙara na putty, a bango, amsawar sinadarai ce, saboda akwai samar da sabon abu, foda na putty a bango ƙasa daga bango, niƙa shi zuwa foda, sannan a yi amfani da shi, ba ya nan, saboda ya samar da sabon abu (calcium carbonate). Babban abubuwan da ke cikin foda mai launin toka sune: Ca(OH)2, CaO da ƙaramin adadin cakuda CaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O tokar calcium a cikin ruwa da iska ƙarƙashin aikin CO2, samuwar calcium carbonate, da kuma riƙe ruwa na HPMC kawai, ƙarin tokar calcium mafi kyau, nasa bai shiga cikin wani martani ba.
10, HPMC cellulose ether mara ionic, to menene ba ionic ba?
A takaice dai, nonionic wani abu ne da ba ya yin ion a cikin ruwa. Ionization shine tsarin da ake raba electrolyte zuwa ions masu motsi cikin 'yanci a cikin wani sinadari na musamman, kamar ruwa ko 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 na free-moving sodium (Na+) waɗanda ke da positive da ions na chloride (Cl) waɗanda ke da charged negative. A wata ma'anar, HPMC a cikin ruwa ba ya rabuwa zuwa ions masu caji, amma yana wanzuwa azaman ƙwayoyin halitta.
11, zafin gel na hydroxypropyl methylcellulose kuma menene alaƙa da shi?
Zafin gel na HPMC yana da alaƙa da yawan methoxy ɗinsa, ƙarancin yawan methoxy ↓, mafi girman zafin gel ↑.
12. Akwai wata alaƙa tsakanin foda na putty da HPMC?
Garin foda na putty da ingancin calcium suna da kyakkyawar alaƙa, kuma HPMC ba shi da alaƙa da yawa. Ƙarancin sinadarin calcium na calcium da kuma rabon CaO, Ca(OH)2 a cikin tokar calcium bai dace ba, zai haifar da faɗuwar foda. Idan yana da alaƙa da HPMC, to riƙe ruwa na HPMC ba shi da kyau, zai kuma haifar da faɗuwar foda. Don takamaiman dalilai, don Allah duba tambaya ta 9.
13, nau'in hydroxypropyl methylcellulose mai narkewa a cikin ruwan sanyi da kuma nau'in mai narkewa a cikin ruwan zafi a cikin tsarin samarwa, menene bambanci?
Nau'in ruwan sanyi na HPMC yana narkewa ne bayan an yi maganin glyoxal surface, a cikin ruwan sanyi da sauri ya warwatse, amma ba a narke shi ba, sai ya narke. Ba a yi wa nau'in da ke narkewa da zafi magani da glyoxal ba. Girman glyoxal yana da girma, watsawa yana da sauri, amma danko yana da jinkiri, girman yana da ƙarami, akasin haka.
14, hydroxypropyl methyl cellulose (HPMC) yana da warin abin da ke faruwa?
Ana yin HPMC da aka samar ta hanyar narkewar abinci daga toluene da isopropyl barasa a matsayin mai narkewar abinci. Idan wankewar ba ta da kyau sosai, za a sami ɗanɗanon da ya rage.
15, amfani daban-daban, yadda ake zaɓar hydroxypropyl methyl cellulose (HPMC) da ya dace?
AIKATA foda mai kauri: buƙatar ta yi ƙasa, ɗanɗano ya yi dubu 100, babu matsala, abu mafi mahimmanci shine a kiyaye ruwa da kyau. Aiwatar da turmi: buƙatar ta yi yawa, buƙatar ta yi yawa, ya kamata ta yi dubu 150. Aiwatar da manne: buƙatar samfura nan take, ɗanɗano mai yawa.
16, hydroxypropyl methylcellulose menene sunan da aka fi sani da shi?
Hydroxypropyl Methyl Cellulose, Turanci: Takaitaccen bayani game da ƙwayoyin sel: HPMC ko MHPC laƙabi: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl Methyl ether Hyprolose.
17, HPMC wajen amfani da foda na putty, kumfa na putty foda menene dalili?
HPMC a cikin foda mai kauri, kauri, riƙe ruwa da kuma gina ayyuka uku. Rashin shiga cikin wani abu. Dalilin kumfa: 1, ruwan ya yi yawa. 2, ƙasan ba ta bushe ba, a saman kuma a goge wani Layer, kuma yana da sauƙin kumfa.
18. Tsarin foda na putty don bangon ciki da na waje?
Foda mai kauri don bango na ciki: Kilogiram 800 na calcium mai nauyi da Kilogiram 150 na calcium mai launin toka (sitaci ether, kore mai kyau, ƙasa mai ɗanɗano, citric acid da polyacrylamide 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
19. Menene bambanci tsakanin HPMC da MC?
MC shine methyl cellulose, auduga mai tsafta bayan maganin alkali, tare da methane chloride a matsayin wakilin etherification, ta hanyar jerin martani don yin cellulose ether. Gabaɗaya, matakin maye gurbin shine 1.6~2.0, kuma narkewar ya bambanta dangane da matakin maye gurbin. Cellulose ether ne wanda ba ionic ba.
(1) Rike ruwa na methyl cellulose ya dogara da adadin ƙari, ɗanko, ɗanko da saurin narkewa. Gabaɗaya ƙara yawan, ƙaramin ɗanko, ɗanko, yawan riƙe ruwa. Daga cikinsu, adadin da aka ƙara wa ƙimar riƙe ruwa yana da babban tasiri, ɗanko da matakin riƙe ruwa ba su da alaƙa da alaƙar. Yawan narkewar ya dogara ne akan matakin gyaran saman da ƙarancin barbashi na barbashi na cellulose. A cikin cellulose ether da ke sama, ƙimar riƙe ruwa na methyl cellulose da hydroxypropyl methyl cellulose ya fi girma.
(2) Ana iya narkar da Methyl cellulose a cikin ruwan sanyi, ruwan zafi da aka narkar zai fuskanci matsaloli, ruwan da ke cikin pH = 3 ~ 12 yana da ƙarfi sosai. Yana da kyakkyawan jituwa da sitaci, guanidine danko da kuma yawancin surfactants. Gelation yana faruwa ne lokacin da zafin jiki ya kai zafin gelation.
(3) Sauyin zafin jiki zai yi tasiri sosai ga yawan riƙe ruwa na methyl cellulose. Gabaɗaya, yawan zafin jiki, haka nan riƙon ruwa ke ƙara muni. Idan zafin turmi ya wuce 40℃, riƙon ruwan methyl cellulose zai yi muni sosai, wanda hakan zai shafi ginin turmi sosai.
(4) Methyl cellulose yana da tasiri a fili akan ginawa da mannewa na turmi. A nan, "mannewa" yana nufin ƙarfin manne da aka ji tsakanin kayan aikin aikace-aikacen ma'aikaci da kuma abin da ke kan bango, wato, juriyar yanke turmi. Ƙarfin manne yana da girma, juriyar yanke turmi yana da girma, kuma ƙarfin da ma'aikata ke buƙata yayin amfani shi ma yana da girma, don haka kadarar gini na turmi ba ta da kyau. A cikin samfuran cellulose ether, mannewar methyl cellulose yana da matsakaicin matsayi.
HPMC na hydroxypropyl methyl cellulose, an yi shi ne da auduga mai tsafta bayan an yi maganin alkali, tare da propylene oxide da chloromethane a matsayin wakili mai hana etherifying, ta hanyar jerin halayen kuma an yi shi da gaurayen ether cellulose marasa ionic. Matsakaicin maye gurbin gabaɗaya shine 1.2~2.0. Abubuwan da ke cikinsa suna shafar yawan abubuwan da ke cikin methoxy da abubuwan da ke cikin hydroxypropyl.
(1) hydroxypropyl methyl cellulose wanda ke narkewa a cikin ruwan sanyi, ruwan zafi da ke narkewa zai fuskanci matsaloli. Amma zafinsa na gelation a cikin ruwan zafi ya fi na methyl cellulose girma sosai. Narkewar methyl cellulose a cikin ruwan sanyi kuma ya inganta sosai.
(2) dankowar hydroxypropyl methyl cellulose yana da alaƙa da nauyin kwayoyin halittarsa, kuma babban nauyin kwayoyin halittar shine babban dankowar. Zafin jiki kuma zai shafi dankowar sa, zafin jiki yana ƙaruwa, dankowar yana raguwa. Duk da haka, dankowar zafin jiki mai yawa ya fi na methyl cellulose ƙasa. Maganin yana da karko idan aka adana shi a zafin jiki na ɗaki.
(3) hydroxypropyl methyl cellulose yana da daidaito ga acid da alkali, kuma ruwan da ke cikinsa yana da daidaito sosai a cikin pH = 2 ~ 12. Caustic soda da ruwan lemun tsami ba su da wani tasiri mai kyau a kan halayensa, amma alkali na iya hanzarta saurin narkewarsa da kuma inganta danko na fil. Hydroxypropyl methyl cellulose yana da daidaito ga gishirin gabaɗaya, amma lokacin da yawan ruwan gishiri ya yi yawa, danko na ruwan hydroxypropyl methyl cellulose yana ƙaruwa.
(4) Rikewar ruwa na hydroxypropyl methyl cellulose ya dogara da adadin da aka ƙara, danko, da sauransu, adadin riƙe ruwa iri ɗaya ya fi na methyl cellulose girma.
(5) Ana iya haɗa hydroxypropyl methyl cellulose da mahaɗan polymer masu narkewa cikin ruwa don su zama mafita iri ɗaya, mafi girman danko. Kamar polyvinyl alcohol, sitaci ether, plant gum da sauransu.
(6) Mannewar hydroxypropyl methyl cellulose ga ginin turmi ya fi na methyl cellulose girma.
(7) hydroxypropyl methyl cellulose yana da juriyar enzymatic mafi kyau fiye da methyl cellulose, kuma yiwuwar lalacewar enzymatic na maganin sa ya yi ƙasa da na methyl cellulose.
Me ya kamata a kula da shi wajen amfani da shi a aikace dangane da alaƙar da ke tsakanin danko da zafin jiki na HPMC?
Danko na HPMC yana da daidaiton da ya dace da zafin jiki, wato, danko yana ƙaruwa tare da raguwar zafin jiki. Idan muka yi magana game da danko na wani samfuri, muna nufin sakamakon auna ruwansa na kashi 2% a zafin digiri 20 na Celsius.
A aikace, a yankunan da ke da babban bambancin zafin jiki tsakanin lokacin rani da hunturu, ya kamata a mai da hankali kan shawarar da aka bayar na amfani da ƙarancin ɗanko a lokacin hunturu, wanda ya fi dacewa da gini. In ba haka ba, idan zafin ya yi ƙasa, ɗanko na cellulose zai ƙaru, lokacin da ake gogewa, jin zai yi nauyi.
Matsakaicin danko: 75000-100000 galibi ana amfani da shi don putty
Dalili: Mai kyau riƙe ruwa
Babban danko: 150000-200000 galibi ana amfani da shi don barbashi na polystyrene mai rufin zafi turmi foda da beads na gilashi mai rufin zafi turmi.
Dalili: yawan danko, turmi ba shi da sauƙin faɗuwa, yana rataye da ruwa, yana inganta ginin.
Amma gabaɗaya, idan aka yi la'akari da girman danko, to, yawan riƙe ruwa zai fi kyau, don haka masana'antun turmi da yawa suna la'akari da farashin, tare da cellulose mai matsakaicin danko (75,000-100000) don maye gurbin cellulose mai ƙarancin danko (20,000-40000) don rage adadin ƙarin.
Lokacin Saƙo: Satumba-14-2022