I-MHEC yezinga lokwakha

Ibanga lokwakha I-MHEC

Ibanga lesakhiwo i-MHEC Mi-ethyl i-HydroxyethylCi-elliloseiyimpuphu emhlophe engenaphunga, engenambitheki, engenabuthi engancibilikiswa emanzini abandayo ukuze yakhe isixazululo esibonakalayo esiqinile. Inezici zokuqina, ukubopha, ukuhlakazeka, i-emulsification, ukwakheka kwefilimu, ukumiswa, ukumuncwa, i-gelation, umsebenzi wobuso, ukugcinwa komswakama kanye ne-colloid evikelayo. Njengoba isixazululo samanzi sinomsebenzi osebenzayo wobuso, singasetshenziswa njenge-ejenti yokuvikela ye-colloidal, i-emulsifier kanye ne-dispersant. Isixazululo samanzi se-MHEC grade yokwakha i-Hydroxyethylcellulose sinamandla okuguquguquka kwamanzi futhi siyi-ejenti yokugcina amanzi esebenza kahle. I-Hydroxyethyl methyl cellulose iqukethe amaqembu e-hydroxyethyl, ngakho-ke inekhono elihle lokulwa nokukhunta, ukuzinza okuhle kwe-viscosity kanye nokulwa nokukhunta ngesikhathi sokugcina isikhathi eside.

Izakhiwo zomzimba nezamakhemikhali:

Ukubukeka: I-MHEC imhlophe noma cishe imhlophe njengempuphu enemicu noma enama-granular; ayinaphunga.

Ukuncibilika: I-MHEC ingancibilika emanzini abandayo kanye namanzi ashisayo, imodeli ye-L ingancibilika emanzini abandayo kuphela, i-MHEC ayincibiliki ezincibilikisini eziningi eziphilayo. Ngemva kokwelashwa kobuso, i-MHEC ihlakazeka emanzini abandayo ngaphandle kokuhlangana, futhi incibilike kancane, kodwa ingancibilika ngokushesha ngokulungisa inani layo le-PH elingu-8~10.

Ukuqina kwe-PH: I-viscosity ayishintshi kakhulu ngaphakathi kwebanga eliphakathi kuka-2 ~ 12, futhi i-viscosity iyancipha ngale kwaleli banga.

Ubuncane: Izinga lokudlula le-mesh engu-40 ≥99% Izinga lokudlula le-mesh engu-80 100%.

Ubuningi obubonakalayo: 0.30-0.60g/cm3.

Amabanga Emikhiqizo

Isicelo 

I-MHEC methyl Hydroxyethyl cellulose yezinga lokwakha ingasetshenziswa njenge-colloid evikelayo, i-emulsifier kanye ne-dispersant ngenxa yomsebenzi wayo osebenzayo ebusweni esixazululweni sayo samanzi. Izibonelo zokusetshenziswa kwayo yilezi ezilandelayo:

1. Umphumela we-methylhydroxyethylcellulose ekusebenzeni kahle kwesimende. I-MHEC methyl yezinga lokwakha i-Hydroxyethylcellulose iyimpuphu emhlophe engenaphunga, engenambitheki, engenabuthi engancibilikiswa emanzini abandayo ukuze yakhe isixazululo esibonakalayo esiqinile. Inezici zokuqina, ukubopha, ukuhlakazeka, i-emulsification, ukwakheka kwefilimu, ukumiswa, ukumuncwa, i-gelation, umsebenzi wobuso, ukugcinwa komswakama kanye ne-colloid evikelayo. Njengoba isixazululo samanzi sinomsebenzi osebenzayo wobuso, singasetshenziswa njenge-colloid evikelayo, i-emulsifier kanye ne-dispersant. Isixazululo samanzi sezinga lokwakha i-MHEC methyl i-Hydroxyethyl cellulose sinomoya omuhle wokufudumala kwamanzi futhi siyi-ejenti yokugcina amanzi esebenza kahle.
2. Lungisa upende wokukhulula oguquguqukayo ophezulu, owenziwe ngezingxenye ezilandelayo ngesisindo sezinto zokusetshenziswa: 150-200g wamanzi acwengekile; 60-70g we-emulsion ye-acrylic emsulwa; 550-650g we-calcium esindayo; 70-90g we-talc; 30-40g wesisombululo samanzi se-methyl cellulose; 10-20g wesisombululo samanzi se-lignocellulose; 4-6g wezinsiza zokwakha ifilimu; 1.5-2.5g we-antiseptic fungicide; 1.8-2.2g we-dispersant; 1.8-2.2g we-wetting agent; I-Thickener 3.5-4.5g; i-ethylene glycol 9-11g; isixazululo samanzi se-MHEC sesigaba sokwakha senziwe nge-2-4% yesigaba sokwakha se-MHEC encibilikisiwe emanzini;i-cellulose fiberisixazululo samanzi senziwe ngo-1 -3%i-cellulose fiberkwenziwa ngokuncibilika emanzini.

Indlela yokukhiqizaI-MHEC yezinga lokwakha？

IukukhiqizwaIndlela Yokwakha Ibanga le-MHEC i-methyl hydroxyethyl cellulose ukuthi ukotini ocwengekile usetshenziswa njengento eluhlaza kanti i-ethylene oxide isetshenziswa njenge-ejenti yokushisa ukulungiselela i-MHEC yebanga lokwakha. Izinto zokusetshenziswa zokulungiselela i-MHEC yebanga lokwakha zilungiswa ngezingxenye ngesisindo: izingxenye ezingu-700-800 zengxube ye-toluene ne-isopropanol njenge-solvent, izingxenye ezingu-30-40 zamanzi, izingxenye ezingu-70-80 ze-sodium hydroxide, izingxenye ezingu-80-85 zekotini elicwengekile, indandatho izingxenye ezingu-20-28 ze-oxythane, izingxenye ezingu-80-90 ze-methyl chloride, izingxenye ezingu-16-19 ze-glacial acetic acid; izinyathelo ezithile yilezi ezilandelayo:

Esinyathelweni sokuqala, engeza ingxube ye-toluene ne-isopropanol, amanzi, kanye ne-sodium hydroxide eketheni yokusabela, phakamisa izinga lokushisa libe ngu-60-80°C, bese uyigcina imizuzu engu-20-40;

Isinyathelo sesibili, ukufaka i-alkalizing: pholisa izinto ezingenhla ku-30-50°C, engeza ukotini ocolisisiwe, fafaza ngengxube ye-toluene ne-isopropanol, susa ku-0.006Mpa, gcwalisa nge-nitrogen ukuze uthole okunye oku-3, bese wenza ama-alkali ngemva kokufaka okunye. Izimo ze-alkalizing zimi kanje: isikhathi se-alkalizing singamahora ama-2, kanti izinga lokushisa le-alkalizing lingu-30℃-50℃;

Isinyathelo sesithathu, i-etherification: ngemva kokufakwa kwe-alkali, i-reactor isuswa iye ku-0.05～I-0.07MPa, i-ethylene oxide kanye ne-methyl chloride kuyangezwa futhi kugcinwe imizuzu engama-30～Imizuzu engama-50; isigaba sokuqala sokufakelwa kwe-ether: 40～60℃, 1.0～Amahora angu-2.0, ingcindezi ilawulwa phakathi kuka-0.15-0.3Mpa; isigaba sesibili se-etherification: 60～90℃, 2.0～Amahora angu-2.5, ingcindezi ilawulwa phakathi kuka-0.4-0.8Mpa;

Isinyathelo sesine, ukuncishiswa kwegesi: engeza i-glacial acetic acid elinganisiwe kusengaphambili ku-desolventizer, cindezela ezintweni ezifakwe ether ukuze zincishiswe, khulisa izinga lokushisa libe ngu-75～80℃ ukuze kuqedwe ukuncibilika, izinga lokushisa lizokhuphuka lifike ku-102℃, kanti inani le-pH lizoba ngu-68. Lapho ukuncibilika sekuqediwe; gcwalisa iketela lokuncibilika ngamanzi ompompi aphathwe yidivayisi ye-reverse osmosis ku-90℃～100℃;

Isinyathelo sesihlanu, ukuwasha nge-centrifugal: izinto ezisesigabeni sesine zifakwa nge-centrifuge ngesikulufo esivundlile, bese izinto ezihlukanisiwe zidluliselwa eketheni lokuwasha eligcwele amanzi ashisayo kusengaphambili ukuze kugezwe izinto;

Isinyathelo sesithupha, ukomisa nge-centrifugal: izinto ezihlanziwe zithuthwa ziyiswe emshinini wokomisa nge-centrifuge yesikulufu esivundlile, izinto zomiswa ku-150-170°C, bese izinto ezomisiwe zichotshozwa futhi zipakishwe.

Uma kuqhathaniswa nobuchwepheshe bokukhiqiza i-cellulose ether obukhona, okwamanjeindlela yokukhiqizaisebenzisa i-ethylene oxide njenge-etherifying agent ukulungiselela i-building grade MHEC methyl hydroxyethyl cellulose, futhi ngoba iqukethe amaqembu e-hydroxyethyl, inekhono elihle lokulwa ne-antifungal. Ukuqina okuhle kwe-viscosity kanye nokumelana ne-mildew ngesikhathi sokugcina isikhathi eside. Ingathatha indawo yezinye i-cellulose ethers.

Bizinga lokwakha i-MHECyi-derivatives ye-cellulose ether,I-Cellulose ether iyinto yamakhemikhali e-polymer enhle enokusetshenziswa okubanzi okwenziwe nge-polymer cellulose yemvelo ngokwelashwa ngamakhemikhali. Njengoba i-cellulose nitrate kanye ne-cellulose acetate kwenziwa ngekhulu le-19, osokhemisi bathuthukise uchungechunge oluningi lwe-cellulose derivatives yama-cellulose ethers. Amasimu amasha okusetshenziswa ahlala etholakala futhi imikhakha eminingi yezimboni iyabandakanyeka. Imikhiqizo ye-Cellulose ether efana ne-sodium carboxymethyl cellulose (CMC), i-ethyl cellulose (EC), i-hydroxyethyl cellulose (HEC), i-hydroxypropyl cellulose (HPC), i-methyl hydroxyethyl cellulose (MHEC) Futhi i-methyl hydroxypropyl cellulose (MHPC) kanye nezinye i-cellulose ethers zaziwa ngokuthi “i-industrial monosodium glutamate” kanye ne-building grade MHEC isetshenziswe kabanzi kuma-tile anamathelayo, udoti owomile, usimende kanye nama-gypsum plasters njll.

Ukupakisha:

Izikhwama zephepha ezingama-25kg ezingaphakathi ezinezikhwama ze-PE.

20'I-FCL: Amathani ayi-12 ane-pallet, amathani ayi-13.5 ngaphandle kwe-pallet.

40'I-FCL: Amathani angu-24 ane-pallet, amathani angu-28 ngaphandle kwe-pallet.