Kedu ihe dị iche n'etiti arụmọrụ methyl cellulose ether na lignin fiber

Kedu ihe dị iche n'etiti arụmọrụ methyl cellulose ether na lignin fiber

Azịza: A na-egosi ntụnyere arụmọrụ n'etiti methyl cellulose ether na lignin fiber na tebụl

 Ntụle arụmọrụ n'etiti methyl cellulose ether na lignin fiber

Kedu ihe kwesịrị ịṅa ntị mgbe ị na-eji methyl cellulose na carboxymethyl cellulose?

Azịza: (1) Mgbe ị na-eji mmiri ọkụ na-agbaze cellulose, ọ ga-adị mma nke ọma tupu ejiri ya. Okpomọkụ achọrọ maka mgbasa zuru oke na nghọta zuru oke na-adabere n'ụdị cellulose.

(2) Okpomọkụ achọrọ iji nweta viscosity zuru oke

Carboxymethylcellulose≤25℃, methylcellulose≤20℃

(3) Jiri nwayọọ nwayọọ na-agbanye cellulose n'ime mmiri, ma kpalie ruo mgbe a na-agbanye ihe niile ahụ, wee kpalie ruo mgbe ngwọta cellulose niile doro anya ma doo anya. Awụsala mmiri ozugbo n'ime cellulose, etinyekwala ya ozugbo nnukwu cellulose nke akpọnwụwo wee ghọọ lumps ma ọ bụ bọọlụ n'ime akpa ahụ.

(4) Tupu a na-etinye ntụ ntụ cellulose na mmiri, agbakwunyela ihe ndị dị na alkaline na ngwakọta, ma mgbe a gbasasịrị na nsị, a ga-agbakwunye obere mmiri mmiri alkaline (pH8 ~ 10) iji mee ka mgbasa ahụ dịkwuo elu. Ndị nwere ike iji bụ: sodium hydroxide aqueous solution, sodium carbonate aqueous solution, sodium bicarbonate aqueous solution, mmiri lime, mmiri amonia na organic amonia, wdg.

(5) The elu-emeso cellulose ether nwere mma dispersibility na mmiri oyi. Ọ bụrụ na a na-agbakwunye ya ozugbo na ngwọta alkaline, ọgwụgwọ elu ahụ ga-adaba ma mee ka condensation pụta, ya mere e kwesịrị ilebara anya karị.

Kedu ihe bụ njirimara methylcellulose?

Azịza: (1) Mgbe ọkụ dị n'elu 200C, ọ na-agbaze na ire ere. Ọdịnaya ntụ dị ihe dịka 0.5% mgbe ọkụ, ọ na-anọpụ iche mgbe a na-eme ya ka ọ bụrụ slurry na mmiri. Banyere viscosity ya, ọ dabere na ogo polymerization.

(2) Solubility na mmiri na-agbanwe agbanwe na okpomọkụ, okpomọkụ dị elu nwere obere solubility, obere okpomọkụ nwere nnukwu solubility.

(3) Enwere ike igbari ya na ngwakọta nke mmiri na ihe ndị na-edozi ahụ, dị ka methanol, ethanol, ethylene glycol, glycerin na acetone.

(4) Mgbe enwere salts metal ma ọ bụ organic electrolytes na mmiri mmiri mmiri ya, ngwọta ahụ ka nwere ike ịnọgidesi ike. Mgbe a na-agbakwunye electrolyte na nnukwu ego, gel ma ọ bụ mmiri ozuzo ga-eme.

(5) Nwere ọrụ elu. N'ihi ọnụnọ nke hydrophilic na hydrophobic dị iche iche na ụmụ irighiri ya, ọ nwere ọrụ nke emulsification, colloid nchebe na nkwụsi ike nke oge.

(6)Gelling ọkụ. Mgbe ngwọta mmiri na-ebili na ọnọdụ okpomọkụ (n'elu gel okpomọkụ), ọ ga-aghọ turbid ruo mgbe ọ ga-agbaze ma ọ bụ na-asọpụta, na-eme ka ngwọta ahụ hapụ viscosity ya, ma ọ nwere ike ịlaghachi na ọnọdụ mbụ mgbe ọ dị jụụ. Okpomọkụ nke gelation na mmiri ozuzo na-adabere n'ụdị ngwaahịa, ntinye nke ngwọta, na ọnụego ọkụ.

(7) The pH kwụsiri ike. Acid na alkali adịghị emetụta viscosity nke ngwọta mmiri. Mgbe agbakwunyere nnukwu alkali, n'agbanyeghị oke okpomọkụ ma ọ bụ obere okpomọkụ, ọ gaghị eme ka ire ere ma ọ bụ yinye kewara.

(8) Mgbe ngwọta ahụ kwụsịrị n'elu, ọ nwere ike ịmepụta ihe nkiri transperent, siri ike na nke na-agbanwe agbanwe, nke na-eguzogide ọgwụ na-edozi ahụ, abụba na mmanụ dị iche iche. Ọ naghị atụgharị edo edo ma ọ bụ na-efegharị efegharị mgbe ekpughere ya na ọkụ, enwere ike gbazekwa ya na mmiri. Ọ bụrụ na etinyere formaldehyde na ngwọta ma ọ bụ mechaa ya na formaldehyde, ihe nkiri ahụ enweghị ike ime ya na mmiri, mana ọ ka nwere ike gbasaa n'akụkụ ya.

(9) na-agba ọsọ. Ọ nwere ike ịgbanye mmiri na sistem na-abụghị mmiri, ma nwee ezigbo ọrụ mgbochi sag.

(10) Viscosity. Ngwọta mmiri ya nwere njikọ siri ike, nke nwere ike imeziwanye ịdị n'otu nke ciment, gypsum, agba, pigmenti, akwụkwọ ahụaja, wdg.

(11) nkwusioru. Enwere ike iji ya chịkwaa coagulation na mmiri ozuzo nke ihe siri ike.

(12) Chebe colloid ma melite nkwụsi ike nke colloid. Ọ nwere ike igbochi mkpokọta na coagulation nke ụmụ irighiri mmiri na pigmenti, ma gbochie oke mmiri ozuzo nke ọma.

(13) njide mmiri. Ihe ngwọta mmiri nwere nnukwu viscosity. Mgbe agbakwunyere na ngwa agha ahụ, ọ nwere ike ịnọgide na-enwe mmiri dị elu, nke na-egbochi nke ọma ịṅụbiga mmiri ókè site na mkpụrụ (dị ka brik, kọmpat, wdg) ma na-ebelata ọnụ ọgụgụ mmiri nke evaporation.

(14) Dị ka ngwọta colloidal ndị ọzọ, ọ na-esi ike site na tannins, protein precipitants, silicates, carbonates, wdg.

(15) Enwere ike ịgwakọta ya na carboxymethyl cellulose n'ụzọ ọ bụla iji nweta mmetụta pụrụ iche.

(16) Ọrụ nchekwa nchekwa nke ngwọta dị mma. Ọ bụrụ na enwere ike idobe ya ọcha n'oge nkwadebe na nchekwa, enwere ike ịchekwa ya ruo ọtụtụ izu na-enweghị ire ere.

IHE: Methylcellulose abụghị ihe na-eto eto maka microorganisms, ma ọ bụrụ na ọ na-emetọ ya na microorganisms, ọ gaghị egbochi ha ịba ụba. na viscosity ga-ebelata n'oge a. Ọ nwekwara ike ịkpata nkewa na oxidizing agents, karịsịa na ngwọta alkaline.

Kedu ihe bụ isi mmetụta nke carboxymethyl cellulose (CMC) na gypsum?

Azịza: Carboxymethyl cellulose (CMC) na-arụkarị ọrụ nke ndina na nrapado, na mmetụta njide mmiri abụghị ihe doro anya. Ọ bụrụ na ejikọtara ya na onye na-ejigide mmiri, ọ nwere ike ịgbatị ma mee ka gypsum slurry dịkwuo mma ma melite arụmọrụ ụlọ, ma carboxymethyl cellulose The base cellulose ga-akwụsị ntọala nke gypsum, ma ọ bụ ọbụna ghara ịkwado ya, ike ga-adaba nke ọma. , yabụ, a ga-achịkwa oke ego eji eme ya.