Moaho oa MHEC oa sehlopha

Sehlopha sa meaho MHEC

Sehlopha sa moaho sa MHEC Methyl HydroxyethylCelliloseke phofo e tšoeu e se nang monko, e se nang tatso, e se nang chefo e ka qhibilihisoang ka metsing a batang ho etsa tharollo e bonaletsang e nang le viscous. E na le litšobotsi tsa ho teteana, ho kopana, ho hasana, ho kopanya, ho theha filimi, ho emisa, ho monya metsi, ho kopanya, ho kenya metsi, ts'ebetso ea bokaholimo, ho boloka mongobo le colloid e sireletsang. Kaha tharollo ea metsi e na le ts'ebetso e sebetsang holim'a bokaholimo, e ka sebelisoa e le moemeli oa tšireletso ea colloidal, emulsifier le dispersant. Motsoako oa MHEC oa sehlopha sa kaho Tharollo ea metsi ea Hydroxyethylcellulose e na le hydrophilicity e ntle 'me ke moemeli ea sebetsang hantle oa ho boloka metsi. Hydroxyethyl methyl cellulose e na le lihlopha tsa hydroxyethyl, kahoo e na le bokhoni bo botle ba ho loantša hlobo, botsitso bo botle ba viscosity le ho thibela hlobo nakong ea polokelo ea nako e telele.

Thepa ea 'mele le ea lik'hemik'hale:

Ponahalo: MHEC ke phofo e tšoeu kapa e batlang e le tšoeu e nang le likhoele kapa e nang le granular; ha e na monko.

Ho qhibiliha: MHEC e ka qhibiliha ka metsing a batang le metsing a chesang, mohlala oa L o ka qhibiliha feela ka metsing a batang, MHEC ha e qhibilihe ka har'a li-solvents tse ngata tsa tlhaho. Kamora kalafo ea bokaholimo, MHEC e hasana ka metsing a batang ntle le ho kopana, 'me ea qhibiliha butle, empa e ka qhibiliha kapele ka ho fetola boleng ba eona ba PH ba 8 ~ 10.

Botsitso ba PH: Viscosity ha e fetohe haholo ka har'a sebaka sa 2 ~ 12, 'me viscosity e fokotseha ka nģ'ane ho sebaka sena.

Bongata: Sekhahla sa ho pasa sa letlooeng la 40 ≥99% Sekhahla sa ho pasa sa letlooeng la 80 100%.

Bongata bo bonahalang: 0.30-0.60g/cm3.

Lihlahisoa tsa Mekhahlelo

Kopo 

Selulose ea MHEC ea sehlopha sa kaho ea Hydroxyethyl e ka sebelisoa e le colloid e sireletsang, emulsifier le dispersant ka lebaka la mosebetsi oa eona o sebetsang holim'a metsi a eona. Mehlala ea ts'ebeliso ea eona ke e latelang:

1. Tšusumetso ea methylhydroxyethylcellulose ts'ebetsong ea samente. Methyl ea sehlopha sa moaho Hydroxyethylcellulose ke phofo e tšoeu e se nang monko, e se nang tatso, e se nang chefo e ka qhibilihang ka metsing a batang ho etsa tharollo e bonaletsang e nang le viscous. E na le litšobotsi tsa ho teteana, ho kopana, ho hasana, emulsification, ho thehoa ha filimi, ho emisoa, ho monya metsi, ho kenella, ts'ebetso ea bokaholimo, ho boloka mongobo le colloid e sireletsang. Kaha tharollo ea metsi e na le ts'ebetso e sebetsang holim'a bokaholimo, e ka sebelisoa e le colloid e sireletsang, emulsifier le dispersant. Methyl ea sehlopha sa moaho Hydroxyethyl cellulose e na le hydrophilicity e ntle 'me ke moemeli ea sebetsang hantle oa ho boloka metsi.
2. Lokisetsa pente e thusang e nang le ho tenyetseha ho hoholo, e entsoeng ka likarolo tse latelang ka boima ba thepa e tala: 150-200g ea metsi a hloekisitsoeng; 60-70g ea emulsion e hloekileng ea acrylic; 550-650g ea calcium e boima; 70-90g ea talc; 30-40g ea tharollo ea metsi ea methyl cellulose; 10-20g ea tharollo ea metsi ea lignocellulose; 4-6g ea lithuso tse etsang filimi; 1.5-2.5g ea fungicide e bolaeang likokoana-hloko; 1.8-2.2g ea dispersant; 1.8-2.2g ea moemeli oa ho kolobisa; Thickener 3.5-4.5g; ethylene glycol 9-11g; tharollo ea metsi ea MHEC ea sehlopha sa Kaho e entsoe ka 2-4% ea MHEC ea sehlopha sa Kaho e qhibilihisitsoeng ka metsing;faeba ea selulosetharollo ea metsi e entsoe ka 1 -3%faeba ea selulosee etsoa ka ho qhibiliha ka metsing.

Mokhoa oa ho hlahisaMoaho oa MHEC oa sehlopha？

ThetlhahisoMokhoa oa ho Haha MHEC ea sehlopha sa methyl hydroxyethyl cellulose ke hore k'hothone e hloekisitsoeng e sebelisoa e le thepa e tala 'me ethylene oxide e sebelisoa e le moemeli oa ho futhumatsa ho lokisa MHEC ea sehlopha sa mohaho. Lisebelisoa tse tala tsa ho lokisa MHEC ea sehlopha sa mohaho li lokisoa ka likarolo ka boima: likarolo tse 700-800 tsa toluene le motsoako oa isopropanol e le solvent, likarolo tse 30-40 tsa metsi, likarolo tse 70-80 tsa sodium hydroxide, likarolo tse 80-85 tsa k'hothone e hloekisitsoeng, lesale likarolo tse 20-28 tsa oxyethane, likarolo tse 80-90 tsa methyl chloride, likarolo tse 16-19 tsa glacial acetic acid; mehato e tobileng ke e latelang:

Mohatong oa pele, eketsa motsoako oa toluene le isopropanol, metsi le sodium hydroxide ka ketleleng ea karabelo, phahamisa mocheso ho 60-80°C, 'me u o boloke metsotso e 20-40;

Mohato oa bobeli, ho etsa alkalize: pholisa thepa e ka holimo ho 30-50°C, eketsa k'hothone e hloekisitsoeng, fafatsa ka motsoako oa toluene le isopropanol, tlosa ho 0.006Mpa, tlatsa ka naetrojene bakeng sa libaka tse 3 tse nkeloang sebaka, 'me u etse alkalis kamora ho e nkela sebaka. Maemo a alkalize ke a latelang: nako ea alkalize ke lihora tse 2, 'me mocheso oa alkalize ke 30℃-50℃;

Mohato oa boraro, ho etherification: kamora alkalization, reactor e tlosoa ho 0.05～0.07MPa, ethylene oxide le methyl chloride lia eketsoa 'me li bolokoa metsotso e 30.～Metsotso e 50; mohato oa pele oa ho kenya etherization: 40～60℃, 1.0～Lihora tse 2.0, khatello e laoloa pakeng tsa 0.15-0.3Mpa; mohato oa bobeli oa etherification: 60～90℃, 2.0～Kamora lihora tse 2.5, khatello e laoloa pakeng tsa 0.4-0.8Mpa;

Mohato oa bone, ho se be le mokelikeli: eketsa asiti ea leqhoa e lekanelitsoeng esale pele ho desolventizer, tobetsa ka har'a thepa e nang le ether bakeng sa ho se be le mokelikeli, eketsa mocheso ho 75～80℃ bakeng sa ho qhibilihisa metsi, mocheso o tla nyolohela ho 102℃, mme boleng ba pH e tla ba 68. Ha ho qhibilihisa metsi ho phethetswe; tlatsa ketlele ya ho qhibilihisa metsi ka metsi a pompo a phekotsweng ke sesebediswa sa reverse osmosis ho 90℃～100℃;

Mohato oa bohlano, ho hlatsoa ka sekontirifu: thepa e mohatong oa bone e kenngoa ka sekontirifu ka sekontirifu se otlolohileng, 'me thepa e arotsoeng e fetisetsoa ketleleng ea ho hlatsoa e tletseng metsi a chesang esale pele bakeng sa ho hlatsoa thepa;

Mohato oa botšelela, ho omisa ka sekontirifu: thepa e hlatsoitsoeng e isoa ka har'a se omisang ka sekontirifu se otlolohileng sa screw, thepa e omisoa mochesong oa 150-170°C, 'me thepa e omisitsoeng ea siloa le ho pakoa.

Ha ho bapisoa le theknoloji e teng ea tlhahiso ea ether ea cellulose, ea hona joalemokhoa oa tlhahisoE sebelisa ethylene oxide e le moemeli oa ho qhibilihisa ho lokisa selulose ea MHEC ea sehlopha sa Building grade, 'me hobane e na le lihlopha tsa hydroxyethyl, e na le bokhoni bo botle ba ho loantša likokoana-hloko. Ho tsitsa ho hotle ha viscosity le ho hanyetsa hlobo nakong ea polokelo ea nako e telele. E ka nkela li-ether tse ling tsa cellulose sebaka.

BMHEC ea sehlopha sa ho hahake di-derivatives tsa ether tsa cellulose,Cellulose ether ke thepa ea lik'hemik'hale e ntle ea polymer e nang le mefuta e mengata ea ts'ebeliso e entsoeng ka cellulose ea polymer ea tlhaho ka kalafo ea lik'hemik'hale. Kaha cellulose nitrate le cellulose acetate li entsoe lekholong la bo19 la lilemo, litsebi tsa k'hemistri li hlahisitse letoto le lengata la li-derivatives tsa cellulose tsa li-ether tsa cellulose. Masimo a macha a ts'ebeliso a ntse a sibolloa khafetsa 'me mafapha a mangata a indasteri a ameha. Lihlahisoa tsa ether tsa Cellulose tse kang sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl hydroxyethyl cellulose (MHEC) 'Me methyl hydroxypropyl cellulose (MHPC) le li-ether tse ling tsa cellulose li tsejoa e le "monosodium glutamate ea indasteri" 'me MHEC ea sehlopha sa moaho e sebelisitsoe haholo ho sekhomaretsi sa tile, seretse se omileng, samente le gypsum plasters jj.

Sephutheloana:

Mekotlana ea pampiri ea 25kg e nang le mekotla ea PE kahare.

20'FCL: Lithane tse 12 tse nang le liphaleiti, Lithane tse 13.5 tse se nang liphaleiti.

40'FCL: 24Ton e nang le diphalete, 28Ton e se nang diphalete.