Focus on Cellulose ethers

Kedu ka esi etinye hydroxyethyl cellulose na mkpuchi?

Kedu ka esi etinye hydroxyethyl cellulose na mkpuchi?

Hydroxyethyl cellulose (HEC) bụ ihe na-eme ka ihe na-eme ka ọ dịkwuo mma na rheology modifier nke a na-eji mee ihe n'ụdị mkpuchi dị iche iche, gụnyere agba, adhesives, na sealants.Mgbe ị na-agbakwunye HEC na mkpuchi, ọ dị mkpa ịgbaso usoro igodo ole na ole iji hụ na a na-agbasasị ya na mmiri mmiri nke ọma.Nke a bụ usoro izugbe iji tinye HEC na mkpuchi:

  1. Kwadebe HEC mgbasa ozi HEC na-enyekarị dị ka ntụ ntụ akọrọ nke a ga-achụsasị na mmiri tupu e tinye ya na mkpuchi.Iji kwadebe mgbasa ozi HEC, tinye ego achọrọ nke ntụ ntụ HEC na mmiri mgbe ọ na-akpali akpali.Ntinye uche nke HEC na-atụ aro na mgbasa na-adabere na ngwa a kapịrị ọnụ na viscosity chọrọ nke mkpuchi.
  2. Gwakọta mgbasa ozi HEC na mkpuchi ozugbo a na-ekpochapụ mgbasa nke HEC na ihe ndị ahụ HEC na-agbasasị, jiri nwayọọ nwayọọ tinye ya na mkpuchi mgbe ị na-agwakọta na-aga n'ihu.Ọ dị mkpa ịgbakwunye mgbasa ozi HEC nwayọọ nwayọọ iji gbochie nkwụsịtụ ma hụ na a na-ekesa ya nke ọma na mkpuchi.Ekwesịrị idobe ọsọ nke ịgwakọta n'ogo dị oke ala iji gbochie ọnyà ikuku.
  3. Gbanwee pH nke mkpuchi HEC na-enwe mmetụta na pH ma na-arụ ọrụ kacha mma na pH nke 6-8.Ya mere, ọ dị mkpa iji dozie pH nke mkpuchi na nke a tupu ị gbakwunye mgbasa ozi HEC.Enwere ike ime nke a site n'ịgbakwunye obere ihe na-edozi pH, dị ka amonia ma ọ bụ sodium hydroxide, na mkpuchi mgbe ị na-enyocha pH.
  4. Kwe ka mkpuchi ahụ zuru ike na tozuru okè Mgbe agbakwunyere mgbasa ozi HEC na mkpuchi ahụ, a na-atụ aro ka ngwakọta ahụ zuo ike ma ọ dịkarịa ala 30 nkeji iji mee ka HEC zuru ezu hydrate ma mee ka mkpuchi ahụ sie ike.Ọ dị mkpa ịkwanye ngwakọta ahụ kwa oge n'oge a iji gbochie idozi ma hụ na a na-ekesa HEC nke ọma.Ekwesịrị ikwe ka mkpuchi ahụ tozuo ma ọ dịkarịa ala awa 24 tupu ejiri ya mee ihe iji hụ na HEC ejirila mkpuchi kpuchie ya kpamkpam.

N'ozuzu, ịgbakwunye HEC na mkpuchi na-agụnye ịkwado mgbasa ozi HEC, jiri nwayọọ nwayọọ na-agbakwunye ya na mkpuchi mgbe ọ na-ejikọta ya na-aga n'ihu, na-edozi pH nke mkpuchi ahụ, na ikwe ka ngwakọta ahụ zuru ike ma tozuo tupu eji ya.Ịgbaso usoro ndị a nwere ike inyere aka hụ na HEC na-agbasasị kpamkpam na mmiri mmiri, na-eme ka mkpuchi dị mma nke ọma na ihe ndị a chọrọ rheological.


Oge nzipu: Eprel-22-2023
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