Focus on Cellulose ethers

Kedu ihe bụ Njirimara Chemical nke Hypromellose?

Kedu ihe bụ Njirimara Chemical nke Hypromellose?

Hydroxypropyl Methylcellulose (HPMC), makwaara dị ka Hypromellose, bụ polymer sịntetik nke sitere na cellulose. Njirimara kemịkal ya gụnyere:

  1. Solubility: HPMC bụ soluble na mmiri na-emepụta ihe ngwọta doro anya mgbe agwakọta ya na mmiri. Solubility nke HPMC dabere na ogo nnọchi ya (DS) na ọkwa viscosity.
  2. Viscosity: HPMC dị na ọkwa viscosity dị iche iche, sitere na obere viscosity dị elu. Viscosity nke HPMC na-adabere n'ịdị arọ molekụla ya, ogo nke nnọchi, na itinye uche ya.
  3. Nkwụsi ike: HPMC kwụsiri ike n'okpuru ọnọdụ ọnọdụ okpomọkụ na pH. Ọ na-eguzogide mmebi microbial na ọ naghị erekwa ngwa ngwa.
  4. Njirimara okpomọkụ: HPMC nwere ezigbo nkwụsi ike nke okpomọkụ ma nwee ike iguzogide okpomọkụ ruo 200 Celsius na-enweghị ire ere.
  5. Ọrụ elu: HPMC nwere ọrụ elu n'ihi ọdịdị polar ya, nke na-eme ka ọ baa uru dị ka onye na-ekesa na emulsifier na ngwa dị iche iche.
  6. Hygroscopicity: HPMC bụ hygroscopic, nke pụtara na ọ nwere ọchịchọ ịmịkọrọ mmiri sitere na gburugburu ebe obibi. Ihe onwunwe a na-eme ka ọ baa uru dị ka onye na-ejigide mmiri na ngwa dị iche iche.
  7. Mmeghachi omume kemịkalụ: HPMC enweghị kemịkalụ na ọ naghị emeghachi omume na kemịkalụ ndị ọzọ. Otú ọ dị, ọ nwere ike ịmepụta njikọ nke hydrogen na ihe ndị ọzọ polar molecules, nke na-eme ka ọ baa uru dị ka ihe na-egbuke egbuke, ihe nkedo, na onye na-eme ihe nkiri na ngwa dị iche iche.

Na nchịkọta,HPMCnwere ọtụtụ ihe ndị na-eme ka ọ bụrụ polymer bara uru na ụlọ ọrụ dị iche iche, gụnyere ọgwụ, nri, ihe ịchọ mma, na ihe owuwu. Ya solubility, viscosity, nkwụsi ike, thermal Njirimara, elu ọrụ, hygroscopicity, na chemical reactivity na-eme ka ọ dabara maka ọtụtụ ngwa.


Oge nzipu: Mar-17-2023
Mkparịta ụka WhatsApp n'ịntanetị!