Hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) bụ ọcha ma ọ bụ ìhè edo edo, enweghị isi, fibrous na-adịghị egbu egbu ma ọ bụ powdery siri ike kwadebere site na etherification 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 nchebe colloid, a na-eji ya eme ihe n'ọtụtụ ebe na nchọpụta mmanụ, mkpuchi, ihe owuwu, ọgwụ na nri, textiles, papermaking and polymers. Polymerization na mpaghara ndị ọzọ. Hydroxyethyl cellulose anaghị eguzosi ike na okpomọkụ na nrụgide nkịtị, na-ezere iru mmiri, okpomọkụ, na oke okpomọkụ, ma nwee ezigbo nnu solubility maka dielectrics. A na-ahapụ ngwọta mmiri ya ka ọ nwee nnukwu nnu nke nnu ma kwụsie ike.

Ntuziaka
Soro ozugbo na mmepụta

1. Tinye mmiri dị ọcha na nnukwu ịwụ nke nwere nnukwu blender.

2. Malite na-akpali akpali na-aga n'ihu na obere ọsọ ma jiri nwayọọ nwayọọ gbanye hydroxyethyl cellulose n'ime ngwọta nke ọma.

3. Gaa n'ihu na-akpali akpali ruo mgbe etinyere ihe niile.

4. Mgbe ahụ gbakwunye ndị na-ahụ maka ọgwụ nje, ihe mgbakwunye alkaline dị ka pigmenti, ihe enyemaka na-agbasa, mmiri amonia.

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 ibu ụzọ kwadebe mmanya na-egbu nne nke nwere nnukwu uche, 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, ma e wezụga na mkpali dị elu adịghị mkpa ka ọ gbazee kpamkpam n'ime ngwọta viscous.

Jiri nlezianya mee ihe
Ebe ọ bụ na hydroxyethyl cellulose a na-eme n'elu bụ ntụ ntụ ma ọ bụ cellulose siri ike, ọ dị mfe ijikwa na igbari n'ime mmiri ma ọ bụrụhaala na achọpụtara ihe ndị a.

1. Tupu na mgbe ịgbakwunye hydroxyethyl cellulose, ọ ga-anọgide na-akpali ruo mgbe ngwọta bụ kpamkpam transperent na doro anya.

2. A ghaghị ịgbanye ya n'ime gbọmgbọm agwakọta nwayọọ nwayọọ. E tinyekwala cellulose hydroxyethyl ozugbo ka ọ bụrụ akpụkpọ ma ọ bụ bọọlụ n'ime gbọmgbọm agwakọta n'ọtụtụ ma ọ bụ ozugbo.

3. Mmiri okpomọkụ na pH uru nke mmiri nwere mmekọrịta dị ịrịba ama na mgbasa nke hydroxyethyl cellulose, n'ihi ya, e kwesịrị ilebara ya anya pụrụ iche.

4. Ọ dịghị mgbe ị na-etinye ihe ụfọdụ alkaline na ngwakọta tupu hydroxyethyl cellulose ntụ ntụ na-ekpo ọkụ site na mmiri. Ịwelite uru PH mgbe ikpo ọkụ na-enyere aka maka mgbasa.

5. Dị ka o kwere mee, tinye onye na-ahụ maka antifungal ozugbo enwere ike.

6. Mgbe ị na-eji hydroxyethyl cellulose viscosity dị elu, ntinye nke mmanya nne ekwesịghị ịdị elu karịa 2.5-3%, ma ọ bụghị na nne mmanya na-esiri ike ịrụ ọrụ. Hydroxyethyl cellulose a gwọchara ya na-adịkarịghị adị mfe ịmepụta lumps ma ọ bụ spheres, ọ gaghị etolite colloid sppherical nke na-adịghị ahụkebe ma gbakwunyere mmiri.