I-MHEC yenqanaba lokwakha

Inqanaba lokwakha I-MHEC

Inqanaba lesakhiwo i-MHEC Mi-ethyl i-hydroxyethylCi-elliloseyipowder emhlophe engenavumba, engenancasa, engenatyhefu enokunyibilika emanzini abandayo ukuze yenze isisombululo esicacileyo esiqinileyo. Ineempawu zokutyeba, ukubopha, ukusasazwa, ukuxuba, ukwakheka kwefilimu, ukumiswa, ukufunxa, ukucoca, umsebenzi womphezulu, ukugcinwa komswakama kunye ne-colloid ekhuselayo. Ekubeni isisombululo samanzi sinomsebenzi osebenzayo kumphezulu, singasetyenziswa njenge-arhente yokukhusela i-colloidal, i-emulsifier kunye ne-dispersant. Isisombululo samanzi se-MHEC grade Building methyl Hydroxyethylcellulose sinobumanzi obuhle kwaye sisixhobo sokugcina amanzi esisebenzayo. I-Hydroxyethyl methyl cellulose inamaqela e-hydroxyethyl, ngoko ke inamandla amahle okulwa nokungunda, uzinzo oluhle lwe-viscosity kunye nokulwa nokungunda ngexesha lokugcina ixesha elide.

Iimpawu zomzimba nezekhemikhali:

Inkangeleko: I-MHEC imhlophe okanye phantse ibe mhlophe njenge-fibrous okanye i-granular powder; ayinavumba.

Ukunyibilika: I-MHEC inokunyibilika emanzini abandayo nasemanzini ashushu, imodeli ye-L inokunyibilika emanzini abandayo kuphela, i-MHEC ayinyibiliki kwiintlambululi ezininzi zezinto eziphilayo. Emva konyango lomphezulu, i-MHEC isasazeka emanzini abandayo ngaphandle kokudibana, kwaye inyibilike kancinci, kodwa inokunyibilika ngokukhawuleza ngokulungisa ixabiso layo le-PH eliyi-8 ~ 10.

Uzinzo lwe-PH: I-viscosity ayitshintshi kangako ngaphakathi koluhlu lwe-2 ~ 12, kwaye i-viscosity iyancipha ngaphaya kolu luhlu.

Ubuninzi: Izinga lokupasa le-mesh ezingama-40 ≥99% Izinga lokupasa le-mesh ezingama-80 100%.

Uxinano olubonakalayo: 0.30-0.60g/cm3.

Amanqanaba eemveliso

Isicelo 

I-MHEC methyl Hydroxyethyl cellulose yodidi lokwakha ingasetyenziswa njenge-colloid ekhuselayo, i-emulsifier kunye ne-dispersant ngenxa yomsebenzi wayo osebenzayo kumphezulu kwisisombululo sayo samanzi. Imizekelo yezicelo zayo yile ilandelayo:

1. Impembelelo ye-methylhydroxyethylcellulose ekusebenzeni kwesamente. I-MHEC methyl yodidi lwesakhiwo I-Hydroxyethylcellulose yipowder emhlophe engenavumba, engenancasa, engenatyhefu enokuchithwa emanzini abandayo ukuze yenze isisombululo esicacileyo esiqinileyo. Ineempawu zokutyeba, ukubopha, ukusasazwa, ukuxuba, ukwakheka kwefilimu, ukumiswa, ukufunxwa, i-gelation, umsebenzi womphezulu, ukugcinwa komswakama kunye ne-colloid ekhuselayo. Ekubeni isisombululo samanzi sinomsebenzi osebenzayo womphezulu, singasetyenziswa njenge-colloid ekhuselayo, i-emulsifier kunye ne-dispersant. I-MHEC methyl yodidi lwesakhiwo Isisombululo samanzi se-Hydroxyethyl cellulose sinobumanzi obuhle kwaye sisixhobo sokugcina amanzi esisebenzayo.
2. Lungisa ipeyinti yokukhulula enokuguquguquka okuphezulu, eyenziwe ngezi zinto zilandelayo ngobunzima bezinto ezikrwada: 150-200g yamanzi acocekileyo; 60-70g ye-emulsion ye-acrylic ecocekileyo; 550-650g ye-calcium enzima; 70-90g ye-talc; 30-40g yesisombululo samanzi se-methyl cellulose; 10-20g yesisombululo samanzi se-lignocellulose; 4-6g yezixhobo zokwenza ifilimu; 1.5-2.5g ye-antiseptic fungicide; 1.8-2.2g ye-dispersant; 1.8-2.2g ye-agent yokumanzisa; I-Thickener 3.5-4.5g; i-ethylene glycol 9-11g; isisombululo samanzi se-MHEC se-Building grade senziwe nge-2-4% ye-Building grade MHEC enyibilikiswe emanzini;ifayibha yeseliluloseisisombululo samanzi senziwe nge-1 -3%ifayibha yeseliluloseyenziwa ngokunyibilikisa emanzini.

Indlela yokuvelisaI-MHEC yenqanaba lokwakha？

IimvelisoIndlela yoKwakha i-MHEC methyl hydroxyethyl cellulose kukuba umqhaphu ocociweyo usetyenziswa njengezinto eziluhlaza kwaye i-ethylene oxide isetyenziswa njengearhente yokuthambisa ukulungiselela i-MHEC yoKwakha. Izinto eziluhlaza zokulungiselela i-MHEC yoKwakha zilungiswa ngokwamacandelo ngobunzima: iindawo ezingama-700-800 zomxube we-toluene kunye ne-isopropanol njenge-solvent, iindawo ezingama-30-40 zamanzi, iindawo ezingama-70-80 ze-sodium hydroxide, iindawo ezingama-80-85 zomqhaphu ocociweyo, indandatho iindawo ezingama-20-28 ze-oxythane, iindawo ezingama-80-90 ze-methyl chloride, iindawo ezili-16-19 ze-glacial acetic acid; amanyathelo athile ngala alandelayo:

Kwinyathelo lokuqala, yongeza umxube we-toluene kunye ne-isopropanol, amanzi, kunye ne-sodium hydroxide kwi-kettle ye-reaction, nyusa ubushushu bube ngama-60-80°C, uze ugcine imizuzu engama-20-40;

Inyathelo lesibini, ukongeza i-alkalizing: pholisa izinto ezingentla ukuya kuma-30-50°C, yongeza umqhaphu ocoliweyo, fafaza ngomxube we-toluene kunye ne-isopropanol, khupha i-0.006Mpa, ugcwalise nge-nitrogen ukuze kutshintshwe izinto ezi-3, kwaye wenze i-alkalizing emva kokutshintsha. Iimeko zokufaka i-alkalizing zezi zilandelayo: ixesha lokufaka i-alkalizing ziiyure ezi-2, kwaye ubushushu bokufaka i-alkalizing buyi-30℃-50℃;

Inyathelo lesithathu, i-etherification: emva kwe-alkaliization, i-reactor isuswa iye kwi-0.05～Kongezwa i-0.07MPa, i-ethylene oxide kunye ne-methyl chloride kwaye zigcinwe kangangeentsuku ezingama-30.～Imizuzu engama-50; inqanaba lokuqala lokufakelwa kwe-ether: 40～60℃, 1.0～Iiyure ezi-2.0, uxinzelelo lulawulwa phakathi kwe-0.15-0.3Mpa; inqanaba lesibini le-etherification: 60～90℃, 2.0～Kwiiyure ezi-2.5, uxinzelelo lulawulwa phakathi kwe-0.4-0.8Mpa;

Inyathelo lesine, ukuthomalalisa: yongeza i-glacial acetic acid elinganisiweyo kwangaphambili kwi-desolventizer, cinezela kwizinto ezifakwe i-ether ukuze zithomalalise, yonyusa ubushushu buye kuma-75.～I-80℃ yokukhupha amanzi anyibilikayo, ubushushu buya kunyuka bufike kwi-102℃, kwaye ixabiso le-pH liya kuba yi-68. Xa ukukhupha amanzi anyibilikayo kugqityiwe; gcwalisa iketile yokukhupha amanzi ngamanzi epompo acociweyo sisixhobo esibuyela umva kwi-90℃.～100℃;

Inyathelo lesihlanu, ukuhlamba nge-centrifugal: izinto ezikwinqanaba lesine zifakwa kwi-centrifuge nge-screw centrifuge ethe tye, kwaye izinto ezahlulweyo zidluliselwa kwiketile yokuhlamba egcwele amanzi ashushu kwangaphambili ukuze zihlanjwe;

Inyathelo lesithandathu, ukomisa nge-centrifugal: izinto ezihlanjiweyo zithuthwa zisiwe kwi-dryer nge-screw centrifuge ethe tye, izinto zomiswe kwi-150-170°C, kwaye izinto ezomileyo ziyatyunyuzwa kwaye zipakishwe.

Xa kuthelekiswa netekhnoloji yokuvelisa i-cellulose ether ekhoyo, okwangokuindlela yemvelisoIsebenzisa i-ethylene oxide njenge-etherifying agent ukulungiselela i-building grade MHEC methyl hydroxyethyl cellulose, kwaye kuba iqulethe amaqela e-hydroxyethyl, inamandla amahle okulwa ne-fungus. I-viscosity stability entle kunye nokumelana ne-mildew ngexesha lokugcina ixesha elide. Ingathatha indawo yezinye ii-cellulose ethers.

Bi-MHEC yodidi lokwakhazizinto eziphuma kwi-cellulose ether,I-Cellulose ether yinto yekhemikhali entle ye-polymer enoluhlu olubanzi lokusetyenziswa okwenziwe kwi-polymer cellulose yendalo ngonyango lwekhemikhali. Ekubeni i-cellulose nitrate kunye ne-cellulose acetate zenziwa kwinkulungwane ye-19, iingcali zekhemistri ziye zaphuhlisa uthotho lwee-cellulose derivatives ze-cellulose ethers. Iindawo ezintsha zokusetyenziswa zihlala zifunyanwa kwaye amacandelo amaninzi emizi-mveliso abandakanyekayo. Iimveliso ze-Cellulose ether ezifana ne-sodium carboxymethyl cellulose (CMC), i-ethyl cellulose (EC), i-hydroxyethyl cellulose (HEC), i-hydroxypropyl cellulose (HPC), i-methyl hydroxyethyl cellulose (MHEC) Kwaye i-methyl hydroxypropyl cellulose (MHPC) kunye nezinye ii-cellulose ethers zaziwa ngokuba yi-"industrial monosodium glutamate" kwaye i-building grade MHEC isetyenziswa kakhulu kwi-tile adhesive, dry mortar, cement kunye ne-gypsum plasters njl.njl.

Ukupakisha:

Iingxowa zephepha ezingama-25kg ngaphakathi ezineengxowa ze-PE.

20'I-FCL: Iitoni ezili-12 ezineepalethi, iitoni ezili-13.5 ezingenazo iipalethi.

40'I-FCL: Iitoni ezingama-24 ezineepalethi, iitoni ezingama-28 ezingenazo iipalethi.