Njirimara anụ ahụ na kemịkal Hydroxyethyl Cellulose
Njirimara ọdịdị ngwaahịa a na-acha ọcha na-acha odo odo fibrous ma ọ bụ ntụ ntụ siri ike, anaghị egbu egbu na enweghị ụtọ
Ebe mgbaze 288-290 Celsius (dec.)
Njupụta 0.75 g/mL na 25 Celsius (ọkụ)
Solubility Solubility na mmiri. Na-adịghị ike soluble na nkịtị organic solvents. Ọ na-agbaze n'ime mmiri oyi na mmiri ọkụ, na n'ozuzu ya anaghị edozi ya na ọtụtụ ihe mgbaze organic. Viscosity na-agbanwe ntakịrị na oke PH uru 2-12, mana viscosity na-ebelata karịa oke a. Ọ nwere ọrụ nke ndim, nkwusioru, njide, emulsifying, mgbasa, na ịnọgide na-enwe mmiri mmiri. Enwere ike ịkwadebe ihe ngwọta na ọkwa viscosity dị iche iche. Nwere ike pụrụ iche nnu solubility maka electrolytes.
Dị ka ihe na-abụghị ionic surfactant, hydroxyethyl cellulose nwere ihe ndị a na mgbakwunye na ịgbatị, nkwụsịtụ, njikọ, na-ese n'elu mmiri, na-emepụta ihe nkiri, na-ekesa, na-ejigide mmiri na inye colloid nchebe:
1. HEC na-agbaze na mmiri ọkụ ma ọ bụ mmiri oyi, okpomọkụ dị elu ma ọ bụ esi na-enweghị mmiri ozuzo, nke mere na ọ nwere ọtụtụ ihe solubility na njirimara viscosity, na gelation na-abụghị thermal;
2. Ọ bụ na-abụghị ionic na ike ibikọ ọnụ na a dịgasị iche iche nke ọzọ mmiri-soluble polymers, surfactants, na salts. Ọ bụ ihe magburu onwe colloidal thickener maka elu-concentration electrolyte ngwọta;
3. Ikike njide mmiri dị okpukpu abụọ dị elu karịa nke methyl cellulose, ọ na-enwekwa usoro nchịkwa ka mma.
4. E jiri ya tụnyere methyl cellulose a ma ama na hydroxypropyl methyl cellulose, ike ịgbasa nke HEC bụ nke kachasị njọ, ma ikike colloid nchebe bụ ike kachasị ike.
Teknụzụ chọrọ na ụkpụrụ ịdị mma maka hydroxyethyl cellulose
Ihe: Index molar nnọchi (MS) 2.0-2.5 Umi (%) ≤5 Mmiri na-adịghị ike (%) ≤0.5 PH uru 6.0-8.5 Igwe dị arọ (ug/g) ≤20 Ash (%) ≤5 Viscosity (mpa. s) 2% 20 ℃ mmiri mmiri ngwọta 5-60000 ndu (%) ≤0.001
A na-eji hydroxyethyl cellulose eme ihe
【Jiri 1】 Jiri dị ka surfactant, latex thickener, colloidal echebe gị n'ụlọnga, mmanụ exploration na-agbaji mmiri mmiri, polystyrene na polyvinyl chloride dispersant, wdg.
[Jiri 2] A na-eji ya dị ka ihe na-eku ume na mbelata mmiri mmiri maka mmiri na-egwupụta mmiri na mmiri mmecha, ma nwee mmetụta siri ike nke ọma na mmiri mmiri na-egwu brine. Enwere ike iji ya dị ka ihe na-ebelata mmiri mmiri maka ciment nke ọma mmanụ. Enwere ike ijikọ ya na ion metal polyvalent iji mepụta gel.
[Jiri 3] A na-eji ngwaahịa a dị ka onye na-ekesa polymeric maka mmiri na-agbaji mmiri na-agbaji mmiri, polystyrene na polyvinyl chloride na-agbaji agbaji. Enwere ike iji ya dị ka ihe emulsion thickener na ụlọ ọrụ agba, hygrostat na ụlọ ọrụ eletrọnịkị, ciment anticoagulant na onye na-ejide mmiri na ụlọ ọrụ ihe owuwu. Ụlọ ọrụ seramiiki glazing na ihe nkpuchi eze. A na-ejikwa ya n'ọtụtụ ebe na-ebi akwụkwọ na agba, textiles, ide akwụkwọ, ọgwụ, ịdị ọcha, nri, sịga, pesticides na ihe ndị na-emenyụ ọkụ.
[Jiri 4] Ejiri ya dị ka surfactant, onye na-echebe colloidal, emulsification stabilizer maka vinyl chloride, vinyl acetate na emulsions ndị ọzọ, yana viscosifier, dispersant, na dispersion stabilizer maka latex. A na-eji ya eme ihe n'ụzọ zuru ezu na mkpuchi, eriri, ịcha akwa, imepụta akwụkwọ, ihe ịchọ mma, ọgwụ, ọgwụ pesticide, wdg. Ọ nwekwara ọtụtụ ihe eji eme nchọpụta mmanụ na ụlọ ọrụ igwe.
【Jiri 5】Hydroxyethyl cellulose nwere ọrụ nke elu ọrụ, ndim, suspending, adịgide adịgide, emulsifying, film akpụ, dispersing, mmiri njigide na inye nchebe na ọgwụ siri ike na mmiri mmiri preparations.
Ngwa nke hydroxyethyl cellulose
A na-eji ya na mkpuchi ụlọ, ihe ịchọ mma, ntacha eze, surfactants, latex thickeners, colloidal protection agents, mmanụ na-agbaji mmanụ, polystyrene na polyvinyl chloride dispersants, wdg.
Mpempe akwụkwọ nchekwa ihe nke Hydroxyethyl Cellulose (MSDS)
1. Ngwaahịa nwere ihe ize ndụ nke mgbawa uzuzu. Mgbe ị na-eji nnukwu ọnụ ma ọ bụ nnukwu, kpachara anya ka ịzenarị ntụnye uzuzu na nkwusioru n'ikuku, ma zere ikpo ọkụ, ọkụ, ọkụ na ọkụ eletrik. 2. Zere ntụ ntụ methylcellulose ịbanye na ịkpọtụrụ anya, na-eyi ihe nzacha na enyo nchekwa mgbe ị na-arụ ọrụ. 3. Ngwaahịa ahụ na-amị amị nke ukwuu mgbe mmiri dị, na ntụ ntụ methylcellulose a wụfuru kwesịrị ihicha ya n'oge na-eme ihe na-adịghị mma.
Njirimara nchekwa na njem nke hydroxyethyl cellulose
Nkwakọ ngwaahịa: akpa okpukpu abụọ, akpa akwụkwọ mejupụtara mpụta, akpa ihe nkiri polyethylene dị n'ime, ịdị arọ 20kg ma ọ bụ 25kg kwa akpa.
Nchekwa na njem: Chekwaa n'ebe ikuku na-ekpo ọkụ na nke kpọrọ nkụ n'ime ụlọ, ma ṅaa ntị na mmiri. Nchekwa mmiri ozuzo na anyanwụ n'oge njem.
Usoro nkwadebe nke hydroxyethyl cellulose
Usoro 1: Wunye akwa akwa akwa ma ọ bụ pulp a nụchara anụcha n'ime 30% lye, wepụ ya mgbe ọkara elekere gasịrị, wee pịa. Pịa ruo mgbe oke nke ọdịnaya alkali-mmiri ruru 1:2.8, wee gaa na ngwaọrụ na-etipịa maka ịzọpịa. Tinye eriri alkali e gwepịara egwepịa n'ime ketulu mmeghachi omume. E mechiri ya ma wepụ ya, juputara na nitrogen. Mgbe ejiri nitrogen dochie ikuku dị n'ime kettle, pịa n'ime mmiri mmiri ethylene oxide ajụọla oyi. Meghachi omume n'okpuru jụrụ oyi na 25 Celsius C maka awa 2 iji nweta crude hydroxyethyl cellulose. Jiri mmanya sachaa ngwaahịa cruru ma mezie pH uru ka ọ bụrụ 4-6 site na ịgbakwunye acetic acid. Tinye glycoxal maka njikọ njikọ na ịka nká, jiri mmiri saa ngwa ngwa, ma n'ikpeazụ centrifuge, nkụ, ma gwerie iji nweta hydroxyethyl cellulose dị obere nnu.
Usoro 2: Alkali cellulose bụ polymer eke, mgbanaka eriri eriri ọ bụla nwere otu hydroxyl atọ, otu hydroxyl kachasị arụ ọrụ na-emeghachi omume iji mepụta hydroxyethyl cellulose. Wunye ntụ ọka raw raw ma ọ bụ pulp a nụchara anụcha na soda 30% mmiri mmiri, wepụ ya ma pịa ka ọkara elekere gachara. Afanyekwa ruo mgbe ruru nke alkaline mmiri ruru 1: 2.8, wee gwepịara. Tinye alkali cellulose a kpụkọrọ akpụkọ n'ime ketulu mmeghachi omume, mechie ya, kpochapu ya, jupụta na nitrogen, ma megharịa ikuku na ndochi nitrogen iji dochie ikuku dị na kettle kpamkpam. Pịa n'ime mmiri ethylene oxide nke emejuru oyi, tinye mmiri jụrụ oyi n'ime jaket nke kettle mmeghachi omume, ma jikwaa mmeghachi omume n'ihe dịka 25 Celsius maka awa 2 iji nweta crude hydroxyethyl cellulose. A na-asacha ngwaahịa ahụ na mmanya na-egbu egbu, na-ewepụ ya na pH 4-6 site na ịgbakwunye acetic acid, yana njikọ glycoxal maka ịka nká. Mgbe ahụ, a na-asacha ya na mmiri, na-agbaze ya site na centrifugation, nke a mịrị amị ma gbanye ya iji nweta hydroxyethyl cellulose. Oriri ihe eji eme ihe (kg/t) litter owu ma ọ bụ obere pulp 730-780 mmiri mmiri caustic soda (30%) 2400 ethylene oxide 900 mmanya (95%) 4500 acetic acid 240 glioxal (40%) 100-300
Hydroxyethyl cellulose bụ nke na-acha ọcha ma ọ bụ na-acha odo odo na-esighị ike, ntụ ntụ na-adịghị atọ ụtọ na nke dị mfe, na-agbaze na mmiri oyi na mmiri ọkụ, na-adịkarịghị eri nri na ọtụtụ ihe mgbaze organic.
Hydroxyethyl cellulose (HEC) bụ ọcha ma ọ bụ ìhè edo edo, enweghị isi, na-adịghị egbu egbu fibrous ma ọ bụ powdery siri ike, nke a na-akwado site etherification mmeghachi omume nke alkaline cellulose na ethylene oxide (ma ọ bụ chlorohydrin). Nonionic soluble cellulose ethers. N'ihi na HEC nwere ezigbo ihe nke ịgbasa, nkwụsịtụ, ịgbasa, emulsifying, bonding, film-forming, na-echebe mmiri na inye colloid nchebe, a na-ejikarị ya eme ihe na nchọpụta mmanụ, mkpuchi, ihe owuwu, ọgwụ, nri, textile, akwụkwọ na polymer Polymerization. na ngalaba ndị ọzọ. 40 ntupu sieving ọnụego ≥ 99%; okpomọkụ dị nro: 135-140 ° C; njupụta pụtara ìhè: 0.35-0.61g / ml; okpomọkụ ire ere: 205-210°C; ngwa ngwa na-ere ọkụ; nha nhata okpomọkụ: 23°C; 50% 6% na rh, 29% na 84% rh.
Otu esi eji hydroxyethyl cellulose
agbakwunyere ozugbo na oge mmepụta
1. Tinye mmiri dị ọcha na nnukwu ịwụ nke nwere nnukwu mixer. nke
Hydroxyethyl cellulose
2. Malite na-akpali akpali na-aga n'ihu na obere ọsọ ma jiri nwayọọ nwayọọ gbanye hydroxyethyl cellulose n'ime ngwọta nke ọma. nke
3. Gaa n'ihu na-akpalite ruo mgbe etinyere ihe niile. nke
4. Mgbe ahụ tinye ihe nchebe ọkụ, ihe mgbakwunye bụ isi dị ka pigmenti, ihe enyemaka mgbasa, mmiri amonia. nke
5. Nwuo ruo mgbe niile hydroxyethyl cellulose na-agbaze kpamkpam (viscosity nke ngwọta na-abawanye nke ọma) tupu ị gbakwunye ihe ndị ọzọ na usoro ahụ, na-egweri ruo mgbe ngwaahịa agwụla.
Ejiri nne mmanya
Usoro a bụ ịkwadebe mmanya nne na-ebu ụzọ tinye uche dị elu, wee tinye ya na agba latex. Uru nke usoro a bụ na ọ nwere mgbanwe dị ukwuu ma nwee ike itinye ya ozugbo na agba agbachachara, ma ekwesịrị ịchekwa ya nke ọma. Usoro ndị ahụ yiri Nzọụkwụ 1-4 na Usoro 1, ihe dị iche bụ na ọ dịghị mkpa ịkwanye ruo mgbe ọ na-agbaze kpamkpam n'ime ngwọta viscous.
Porridge maka phenology
Ebe ọ bụ na ihe ndị na-emepụta ihe na-emepụta ihe na-adịghị mma maka hydroxyethyl cellulose, a pụrụ iji ihe ndị a na-emepụta ihe na-edozi ahụ iji dozie porridge. Ihe mgbaze ndị a na-ejikarị eme ihe bụ mmiri mmiri dị ka ethylene glycol, propylene glycol na ndị na-eme ihe nkiri (dị ka ethylene glycol ma ọ bụ diethylene glycol butyl acetate) n'ụdị agba. Mmiri ice bụkwa ihe mgbaze na-adịghị mma, n'ihi ya, a na-ejikarị mmiri mmiri eme ihe iji kwadebe porridge. Enwere ike itinye hydroxyethyl cellulose nke porridge ozugbo na agba, na hydroxyethyl cellulose e kewara ma gbasaa na porridge. Mgbe etinyere ya na agba, ọ na-agbaze ozugbo ma na-eme ihe dị ka ihe na-esi ísì ụtọ. Mgbe ịgbakwunye, nọgide na-akpali ruo mgbe hydroxyethyl cellulose na-agbaze kpamkpam na edo. N'ozuzu, a na-eme porridge site na ịgwakọta akụkụ isii nke ihe mgbaze organic ma ọ bụ mmiri ice na otu akụkụ nke hydroxyethyl cellulose. Mgbe ihe dị ka nkeji 6-30 gachara, hydroxyethyl cellulose ga-agbaze ma zaa nke ọma. N'oge okpomọkụ, mmiri okpomọkụ na-adịkarị elu, n'ihi ya, ọ dịghị mma iji porridge.
Akpachara anya maka hydroxyethyl cellulose
Ebe ọ bụ na hydroxyethyl cellulose na-edozi elu bụ ntụ ntụ ma ọ bụ cellulose siri ike, ọ dị mfe ijikwa na igbari ya na mmiri ma ọ bụrụhaala na a na-elebara ihe ndị a anya. nke
1. Tupu na mgbe agbakwunyere hydroxyethyl cellulose, a ghaghị ịkpali ya mgbe niile ruo mgbe ngwọta ya zuru oke ma doo anya. nke
2. A ghaghị iji nwayọọ nwayọọ gbanye ya n'ime tankị ngwakọta, etinyela ya ozugbo nnukwu hydroxyethyl cellulose ma ọ bụ hydroxyethyl cellulose nke mebere lumps na bọọlụ n'ime tankị ngwakọta. 3. Mmiri mmiri na PH uru na mmiri nwere mmekọrịta doro anya na mgbasa nke hydroxyethyl cellulose, n'ihi ya, a ghaghị ịkwụ ụgwọ nlebara anya pụrụ iche. nke
4. Akwụsịla ihe ụfọdụ alkaline na ngwakọta tupu a kpoo ntụ ntụ hydroxyethyl cellulose site na mmiri. Ịkwalite uru pH mgbe ikpo ọkụ ga-enyere aka igbari. nke
5. Dị ka o kwere mee, tinye ọgwụ mgbochi fungal ozugbo enwere ike. nke
6. Mgbe ị na-eji hydroxyethyl cellulose viscosity dị elu, ntinye nke mmanya nne ekwesịghị ịdị elu karịa 2.5-3%, ma ọ bụghị ya, mmanya nne ga-esi ike ijikwa ya. Hydroxyethyl cellulose a gwọchara ya anaghị adị mfe n'ịmepụta lumps ma ọ bụ spheres, ma ọ bụ na ọ gaghị etolite colloid sppherical na-adịghị ahụkebe ma gbakwunyere mmiri.
A na-ejikarị ya eme ihe dị ka thickener, onye na-echebe ihe, nrapado, stabilizer na mgbakwunye maka nkwadebe nke emulsion, jelii, ude, ude mmiri, anya ọcha, suppository na mbadamba nkume, na-ejikwa dị ka hydrophilic gel na skeleton ihe 1. Nkwadebe nke ọkpụkpụ- ụdị nkwado nkwado-nhapụ. Enwere ike iji ya mee ihe dị ka stabilizer na nri.
Oge nzipu: Feb-02-2023