Focus on Cellulose ethers

Kedu ihe dị iche n'etiti cellulose ether na cellulose?

Kedu ihe dị iche n'etiti cellulose ether na cellulose?

Cellulose na cellulose ether sitere na cellulose, polymer eke dị na mgbidi cell nke osisi.Agbanyeghị, ha nwere ọdịiche dị iche na nhazi kemịkalụ na akụrụngwa ha:

  1. Ọdịdị kemịkalụ: Cellulose bụ polysaccharide linear nke mejupụtara nkeji glucose ugboro ugboro jikọtara ọnụ site na β(1→4) glycosidic bonds.Ọ bụ polymer yinye kwụ ọtọ nke nwere ogo kristal dị elu.
  2. Hydrophilicity: Cellulose bụ hydrophilic sitere na ya, nke pụtara na ọ nwere njikọ siri ike maka mmiri ma nwee ike ịmịkọrọ mmiri dị ukwuu.Ihe onwunwe a na-emetụta omume ya na ngwa dị iche iche, gụnyere mmekọrịta ya na usoro mmiri dị ka ngwakọta ciment.
  3. Solubility: cellulose dị ọcha bụ ihe a na-adịghị ahụkebe na mmiri na ọtụtụ ihe mgbaze organic n'ihi nhazi ya nke ukwuu na nnukwu njikọ hydrogen n'etiti ụdọ polymer.
  4. Mwepu: Cellulose ether bụ ụdị cellulose emezigharịrị enwetara site na mwepu kemịkalụ.Usoro a gụnyere iwebata otu ndị na-arụ ọrụ, dị ka hydroxyethyl, hydroxypropyl, methyl, ma ọ bụ otu carboxymethyl, n'elu ọkpụkpụ azụ cellulose.Mgbanwe ndị a na-agbanwe ihe onwunwe nke cellulose, gụnyere solubility ya, omume rheological, na mmekọrịta ya na ihe ndị ọzọ.
  5. Solubility na Mmiri: Cellulose ethers na-abụkarị soluble ma ọ bụ na-ekesa na mmiri, dabere na ụdị na ogo nke nnọchi.Solubility a na-eme ka ha baa uru nke ukwuu na ụlọ ọrụ dị iche iche, gụnyere ọgwụ, nri, ihe ịchọ mma, na ihe owuwu.
  6. Ngwa: Cellulose ethers na-achọta ngwa zuru ebe niile dị ka ndị na-eme ka ndị na-emekọ ihe, ndị na-edozi ihe, ndị na-ekekọta ihe na ihe nkiri na-emepụta ihe na ngwaahịa na usoro dị iche iche.N'ime ihe owuwu, a na-ejikarị ha eme ihe dị ka ihe mgbakwunye na ihe ndị sitere na ciment iji meziwanye ọrụ, njide mmiri, nrapado, na ihe ndị ọzọ.

Na nchịkọta, mgbe cellulose na cellulose ether na-ekere òkè a nkịtị si malite, cellulose ether bụ chemically gbanwetụrụ iwebata kpọmkwem Njirimara na-eme ka ọ soluble ma ọ bụ dispersible na mmiri na adabara dị iche iche ngwa ebe ịchịkwa rheological omume na mmekọrịta na ndị ọzọ bekee chọrọ.


Oge nzipu: Mar-18-2024
Mkparịta ụka WhatsApp n'ịntanetị!