Kedu ihe bụ ọdịdị nke Hydroxyethyl Methyl Cellulose?

Hydroxyethyl Methyl Cellulose (HEMC) bụ ether ether cellulose, nke yiri Hydroxypropyl Methylcellulose (HPMC), nwere ihe pụrụ iche sitere na nhazi kemịkal ya. Nke a bụ nkọwa nke ọdịdị nke Hydroxyethyl Methyl Cellulose:

1. Ọdịdị kemịkalụ:

A na-emepụta HEMC site n'ịgbanwe cellulose site na mmeghachi omume kemịkal, kpọmkwem site na iwebata ma hydroxyethyl (-CH2CH2OH) na methyl (-CH3) otu n'ime ọkpụkpụ cellulose. Usoro kemịkalụ a na-enye HEMC njirimara ya na arụ ọrụ ya.

2. Ọdịdị Hydrophilic:

Dị ka cellulose ethers ndị ọzọ, HEMC bụ hydrophilic, nke pụtara na ọ nwere njikọ maka mmiri. Mgbe a gbasasịrị n'ime mmiri, ụmụ irighiri HEMC na-eme ka mmiri dị ọcha ma na-emepụta ngwọta viscous, na-enye aka n'ịba ụba na njide. Ụdị hydrophilic a na-enye ohere ka HEMC na-amịkọrọ ma na-ejigide mmiri, na-eme ka arụmọrụ ya dị iche iche dị iche iche.

3. Solubility:

HEMC na-agbaze na mmiri, na-emepụta ngwọta doro anya, viscous. Ogo nke solubility na-adabere n'ihe ndị dị ka ịdị arọ molekụla, ogo nke nnọchi, na okpomọkụ. Ihe ngwọta HEMC nwere ike ịmalite nkewa nke oge ma ọ bụ gelation n'okpuru ọnọdụ ụfọdụ, nke enwere ike ịchịkwa site na ịhazi usoro nhazi.

4. Àgwà gbasara ọmụmụ:

HEMC na-egosipụta omume pseudoplastic, nke pụtara viscosity ya na-ebelata n'okpuru nrụgide siri ike. Ngwongwo a na-enye ohere ka ihe ngwọta HEMC na-agba ọsọ ngwa ngwa n'oge ngwa mana ọ na-adaba n'elu ma ọ bụ na-ezu ike. Enwere ike ịhazi njirimara rheological nke HEMC site n'ịgbanwe ihe ndị dị ka itinye uche, ịdị arọ molecular, na ogo nke nnọchi.

5. Ime ihe nkiri:

HEMC nwere ihe na-emepụta ihe nkiri, na-enye ya ohere ịmepụta ihe nkiri na-agbanwe agbanwe na nke jikọrọ ọnụ mgbe ihicha. Ihe nkiri ndị a na-enye ihe mgbochi, adhesion, na nchebe na ihe ndị dị na ngwa dị iche iche. Ikike imepụta ihe nkiri nke HEMC na-enye aka n'iji ya eme ihe na mkpuchi, adhesives na usoro ndị ọzọ.

6. Thermal kwụsie ike:

HEMC na-egosipụta nkwụsi ike nke okpomọkụ dị mma, na-eguzogide okpomọkụ dị elu n'oge nhazi na nchekwa. Ọ naghị eweda ma ọ bụ tufuo njirimara arụrụ ya n'okpuru ọnọdụ nrụpụta ụdị. Nkwụsi ike a na-ekpo ọkụ na-enye ohere iji HEMC mee ihe na nhazi nke na-eme ka ikpo ọkụ ma ọ bụ usoro ọgwụgwọ.

7. ndakọrịta:

HEMC dakọtara na ọtụtụ ihe ndị ọzọ, gụnyere organic solvents, surfactants, na polymers. Enwere ike itinye ya n'ime usoro nwere ihe mgbakwunye dị iche iche na-enweghị nnukwu mmekọrịta. Ndakọrịta a na-enye ohere iji HEMC na ngwa dị iche iche gafee ụlọ ọrụ dị iche iche.

Mmechi:

Hydroxyethyl Methyl Cellulose (HEMC) bụ ether cellulose dị iche iche nwere ihe pụrụ iche nke na-eme ka ọ baa uru na ụlọ ọrụ dị iche iche. Ọdịdị ya hydrophilic, solubility, rheological properties, ikike imepụta ihe nkiri, nkwụsi ike nke okpomọkụ, na ndakọrịta na-enye aka na irè ya na ngwa ndị dị ka mkpuchi, adhesives, ihe owuwu, ngwaahịa nlekọta onwe onye, ​​​​na ọgwụ. Site n'ịghọta ọdịdị HEMC, ndị na-emepụta ihe nwere ike ịkwalite ojiji ya na nhazi iji nweta njirimara arụmọrụ achọrọ na arụ ọrụ ngwaahịa.