MHEC mai daraja a gini

Matsayin gini MHEC

Matsayin gini na MHEC Methyl HydroxyethylCelluloseFarin foda ne mara ƙamshi, mara ɗanɗano, mara guba wanda za a iya narkar da shi a cikin ruwan sanyi don samar da mafita mai haske. Yana da halaye na kauri, haɗawa, watsawa, emulsification, ƙirƙirar fim, dakatarwa, shawa, gelation, aikin saman, riƙe danshi da kuma colloid mai kariya. Tunda ruwan yana da aikin aiki a saman, ana iya amfani da shi azaman wakili mai kariya daga colloidal, emulsifier da warwatsewa. Maganin ruwa na MHEC methyl Hydroxyethylcellulose mai inganci yana da kyakkyawan hydrophilicity kuma wakili ne mai inganci na riƙe ruwa. Hydroxyethyl methyl cellulose ya ƙunshi ƙungiyoyin hydroxyethyl, don haka yana da kyakkyawan ikon hana mold, kyakkyawan kwanciyar hankali da hana mildew yayin ajiya na dogon lokaci.

Kayayyakin jiki da na sinadarai:

Bayyanar MHEC fari ne ko kusan fari, foda mai kama da na roba ko kuma mai kauri; ba shi da wari.

Narkewa: MHEC na iya narkewa a cikin ruwan sanyi da ruwan zafi, samfurin L zai iya narkewa ne kawai a cikin ruwan sanyi, MHEC ba ya narkewa a cikin yawancin abubuwan narkewa na halitta. Bayan an yi wa saman magani, MHEC yana warwatse a cikin ruwan sanyi ba tare da haɗuwa ba, kuma yana narkewa a hankali, amma ana iya narkewa da sauri ta hanyar daidaita ƙimar PH ɗinsa na 8~10.

Kwanciyar PH: Danko kadan yake canzawa a cikin kewayon 2 ~ 12, kuma danko yana raguwa fiye da wannan kewayon.

Girman Girma: Ragewar ...

Yawan da aka bayyana: 0.30-0.60g/cm3.

Maki na Samfura

Aikace-aikace 

Ana iya amfani da MHEC methyl Hydroxyethyl cellulose mai inganci a matsayin kariya daga colloid, emulsifier da kuma warwatsewa saboda aikin da yake yi a saman ruwan da yake amfani da shi. Misalan aikace-aikacensa sune kamar haka:

1. Tasirin methylhydroxyethylcellulose akan aikin siminti. MHEC methylHydroxyethylcellulose na ginin foda ne mara ƙamshi, mara ɗanɗano, mara guba wanda za'a iya narkar da shi a cikin ruwan sanyi don samar da mafita mai haske. Yana da halaye na kauri, haɗawa, warwatsewa, emulsification, ƙirƙirar fim, dakatarwa, shawa, gelation, aikin saman, riƙe danshi da kuma colloid mai kariya. Tunda ruwan yana da aikin aiki a saman, ana iya amfani da shi azaman colloid mai kariya, emulsifier da mai warwatsewa. Maganin ruwa na MHEC methyl Hydroxyethyl cellulose na ginin yana da kyakkyawan hydrophilicity kuma wakili ne mai inganci na riƙe ruwa.
2. Shirya fenti mai sassauci sosai, wanda aka yi daga sassa masu zuwa bisa ga nauyin kayan da aka yi amfani da su: 150-200g na ruwan da aka cire ionized; 60-70g na tsantsar acrylic emulsion; 550-650g na calcium mai nauyi; 70-90g na talc; 30-40g na ruwan methyl cellulose; 10-20g na ruwan lignocellulose; 4-6g na kayan aikin samar da fim; 1.5-2.5g na maganin kashe ƙwayoyin cuta; 1.8-2.2g na mai watsawa; 1.8-2.2g na mai jika; Mai kauri 3.5-4.5g; ethylene glycol 9-11g; ruwan MHEC na ginin an yi shi ne da kashi 2-4% na MHEC na ginin da aka narkar a cikin ruwa;zare na cellulosean yi maganin ruwa daga kashi 1-3%zare na celluloseana yin sa ne ta hanyar narkewa a cikin ruwa.

Yadda ake samarwaMHEC mai daraja a gini?

ThesamarwaHanyar Ginawa: MHEC methyl hydroxyethyl cellulose shine ana amfani da auduga mai tsafta azaman kayan aiki na asali kuma ana amfani da ethylene oxide azaman wakili mai tsarkakewa don shirya MHEC mai inganci. Kayan aiki don shiryawa: MHEC mai inganci ana shirya su a sassa daban-daban bisa ga nauyi: sassan toluene da isopropanol 700-800 a matsayin mai narkewa, sassan ruwa 30-40, sassan sodium hydroxide 70-80, sassan auduga mai inganci 80-85, sassan oxythane 20-28, sassan methyl chloride 80-90, sassan 16-19 na glacial acetic acid; matakan takamaiman sune kamar haka:

A mataki na farko, a zuba cakuda toluene da isopropanol, ruwa, da sodium hydroxide a cikin kettle na amsawa, a ɗaga zafin zuwa 60-80°C, sannan a ajiye na tsawon mintuna 20-40;

Mataki na biyu, alkalization: sanyaya kayan da ke sama zuwa 30-50°C, ƙara auduga mai kyau, fesa da cakuda toluene da isopropanol, kwashe zuwa 0.006Mpa, cika da nitrogen don maye gurbin sau 3, sannan a yi alkali bayan maye gurbin. Yanayin alkalization sune kamar haka: lokacin alkalization shine awanni 2, kuma zafin alkalization shine 30℃-50℃;

Mataki na uku, etherification: bayan alkalization, an kwashe reactor zuwa 0.05～Ana ƙara 0.07MPa, ethylene oxide da methyl chloride kuma ana ajiye su na tsawon 30～Minti 50; mataki na farko na etherification: 40～60℃, 1.0～Awanni 2.0, ana sarrafa matsin lamba tsakanin 0.15-0.3Mpa; mataki na biyu na etherification: 60～90℃, 2.0～Awanni 2.5, matsin lamba yana tsakanin 0.4-0.8Mpa;

Mataki na huɗu, rage zafin jiki: ƙara sinadarin glacial acetic acid da aka auna a gaba a cikin na'urar rage zafin jiki, danna shi cikin kayan da aka kunna don rage zafin jiki, ƙara zafin jiki zuwa digiri 75.～80℃ don narkewar ruwa, zafin jiki zai tashi zuwa 102℃, kuma ƙimar pH zai kasance 68. Lokacin da aka kammala narkewar ruwa; cika kettle ɗin narkewar ruwa da ruwan famfo da na'urar osmosis ta juye ta yi magani a 90℃～100℃;

Mataki na biyar, wankewar centrifugal: kayan da ke mataki na huɗu ana sanya su a cikin injin centrifuge mai kwance, sannan a mayar da kayan da aka raba zuwa tukunyar wanki da aka cika da ruwan zafi a gaba don wanke kayan;

Mataki na shida, busar da centrifugal: ana jigilar kayan da aka wanke zuwa na'urar busar da su ta hanyar centrifuge mai kwance, ana busar da kayan a zafin 150-170°C, sannan a niƙa kayan da aka busar a naɗe su a naɗe su.

Idan aka kwatanta da fasahar samar da cellulose ether da ake da ita, yanzuhanyar samarwaYana amfani da ethylene oxide a matsayin maganin etherifying don shirya MHEC methyl hydroxyethyl cellulose mai daraja, kuma saboda yana ɗauke da ƙungiyoyin hydroxyethyl, yana da kyakkyawan ikon maganin fungal. Kyakkyawan kwanciyar hankali da juriya ga mildew yayin ajiya na dogon lokaci. Yana iya maye gurbin sauran ƙwayoyin cellulose.

Bmatakin MHECshine cellulose ether derivatives,Cellulose ether wani abu ne mai sinadarai mai kyau na polymer wanda ake amfani da shi da yawa daga cellulose na halitta ta hanyar maganin sinadarai. Tun lokacin da aka samar da cellulose nitrate da cellulose acetate a ƙarni na 19, masana kimiyyar sinadarai sun ƙirƙiro jerin abubuwan da suka samo asali daga cellulose ethers. Ana ci gaba da gano sabbin fannoni na aikace-aikace kuma ana shiga cikin fannoni da yawa na masana'antu. Kayayyakin Cellulose ether kamar sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl hydroxyethyl cellulose (MHEC) Da kuma methyl hydroxypropyl cellulose (MHPC) da sauran cellulose ethers ana kiransu da "industrial monosodium glutamate" kuma an yi amfani da MHEC sosai a cikin manne na tayal, turmi busasshe, siminti da gypsum plasters da sauransu.

Marufi:

Jakunkunan takarda masu nauyin kilogiram 25 a ciki tare da jakunkunan PE.

20'FCL: Tan 12 tare da fale-falen ...

40'FCL: Tan 24 tare da fale-falen ...