Kedu ihe dị iche n'etiti hydroxyethyl cellulose na hydroxypropyl cellulose?

Hydroxyethylcellulose (HEC) na hydroxypropylcellulose (HPC) bụ ihe abụọ sitere na cellulose, polymer eke dị na mgbidi cell osisi. A na-eji ihe mmepụta cellulose ndị a eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche n'ihi ihe ha pụrụ iche.

Ọdịdị kemịkal:

Hydroxyethylcellulose (HEC):

A na-emepụta HEC site na ịmeghachi cellulose na ethylene oxide.
N'ime usoro kemịkalụ nke HEC, a na-ewebata ìgwè hydroxyethyl n'ime ọkpụkpụ cellulose.
Ogo nke nnọchi (DS) na-anọchi anya nkezi ọnụọgụ hydroxyethyl otu glucose n'ime yinye cellulose.

Hydroxypropylcellulose (HPC):

A na-emepụta HPC site n'ịgwọ cellulose na propylene oxide.
N'oge usoro njikọ, a na-agbakwunye otu hydroxypropyl na nhazi cellulose.
N'otu aka ahụ HEC, a na-eji ogo nnọchi anya iji chọpụta oke ngbanwe hydroxypropyl na molekul cellulose.

njirimara:

Hydroxyethylcellulose (HEC):

A maara HEC maka ikike njigide mmiri ya dị mma, na-eme ka ọ bụrụ ihe na-emekarị n'ụdị dị iche iche na-agbakọ na gelling.
Ọ na-etolite ngwọta doro anya na mmiri ma gosipụta omume pseudoplastic, nke pụtara na ọ na-aghọ obere viscous n'okpuru nrụgide shear.
A na-ejikarị HEC eme ihe n'ichepụta ngwaahịa nlekọta onwe onye, ​​ọgwụ na-emepụta ọgwụ, na dị ka ihe na-ekpuchi mmiri na mmiri.

Hydroxypropylcellulose (HPC):

HPC nwekwara ezigbo mmiri solubility na ihe na-emepụta ihe nkiri.
Ọ nwere oke ndakọrịta na ihe mgbaze dị iche iche karịa HEC.
A na-ejikarị HPC eme ihe dị ka ihe nkedo na usoro ọgwụ, ngwaahịa nlekọta ọnụ, na mmepụta mbadamba.

ngwa:

Hydroxyethylcellulose (HEC):

A na-eji ya eme ihe n'ọtụtụ ebe na ịchọ mma na ụlọ ọrụ nlekọta onwe onye dị ka thickener na shampoos, lotions na creams.
Ejiri ya dị ka stabilizer na viscosity regulator n'ụdị ọgwụ.
Ejiri ya mee ihe na-emepụta agba na mkpuchi mmiri.

Hydroxypropylcellulose (HPC):

A na-ejikarị ngwa ọgwụ eme ihe, ọkachasị dị ka ihe eji emepụta mbadamba ihe.
A na-eji ya na ngwaahịa nlekọta ọnụ dị ka ntacha eze maka ihe na-eme ka ọ sie ike.
Enwere ike iji ya na sistemụ nnyefe ọgwụ na-achịkwa.

Ọ bụ ezie na hydroxyethyl cellulose (HEC) na hydroxypropyl cellulose (HPC) na-ekerịta ụfọdụ myirịta n'ihi mmalite cellulose ha, ha dị iche na nhazi kemịkal, ihe onwunwe, na ngwa. HEC na-enwekarị mmasị na nlekọta onwe ya na mkpuchi mkpuchi maka njide mmiri ya na ike ịgbasa, ebe a na-ejikarị HPC na ụlọ ọrụ ọgwụ, karịsịa n'ichepụta mbadamba nkume na usoro nnyefe ọgwụ na-achịkwa. Ịghọta ọdịiche ndị a dị oke mkpa maka ịhọrọ usoro cellulose kwesịrị ekwesị maka ngwa mmepụta ihe.