Focus on Cellulose ethers

Njirimara Hydroxypropyl methylcellulose (HPMC).

Njirimara Hydroxypropyl methylcellulose (HPMC).

Ngwaahịa a na-ejikọta ọtụtụ ihe anụ ahụ na kemịkal ka ọ bụrụ ngwaahịa pụrụ iche nwere ọtụtụ ojiji, yana njirimara dị iche iche bụ ndị a:

(1) Njide mmiri: Ọ nwere ike ijide mmiri n'elu ebe ndị na-adịghị mma dịka mbadamba ciment na brik.

(2) Nhazi ihe nkiri: Ọ nwere ike ịmepụta ihe nkiri na-egbuke egbuke, siri ike na nke dị nro na mmanu mmanu mmanu.

(3) Ihe na-edozi ahụ: Ngwaahịa a bụ soluble na ụfọdụ ihe mgbaze organic, dị ka ethanol / mmiri, propanol / mmiri, dichloroethane, na ihe mgbaze nke mejupụtara abụọ ihe mgbaze organic.

(4) Thermal gelation: Mgbe mmiri mmiri ngwọta nke ngwaahịa na-ekpo ọkụ, ọ ga-etolite a gel, na kpụrụ gel ga-aghọ ihe ngwọta ọzọ mgbe jụrụ.

(5) Ọrụ elu: Nye ọrụ elu na ngwọta iji nweta emulsification chọrọ na colloid nchebe, yana nkwụsị nke oge.

(6) nkwusioru: Ọ nwere ike igbochi mmiri ozuzo nke ihe siri ike, si otú a na-egbochi nhazi nke sedimenti.

(7) Colloid nchebe: ọ nwere ike igbochi ụmụ irighiri mmiri na ụmụ irighiri mmiri ka ọ ghara ịchịkọta ma ọ bụ ịgbakọta.

(8) Adhesiveness: Eji ya mee ihe maka pigmenti, ngwaahịa ụtaba, na ngwaahịa akwụkwọ, ọ na-arụ ọrụ dị mma.

(9) Mmiri solubility: Enwere ike ịgbaze ngwaahịa ahụ na mmiri dị iche iche, na njedebe kachasị elu bụ nanị viscosity.

(10) Inertness na-abụghị ionic: Ngwaahịa a bụ cellulose ether na-abụghị ionic, nke anaghị ejikọta ya na nnu ígwè ma ọ bụ ion ndị ọzọ na-emepụta ihe na-adịghị edozi.

(11) Acid-base kwụsie ike: adabara maka ojiji n'ime nso nke PH3.0-11.0.

(12) Enweghị ụtọ na enweghị isi, ọ naghị emetụta metabolism; eji dị ka nri na ọgwụ mgbakwunye, ha agaghị metabolized na nri na ha agaghị enye calorie.


Oge nzipu: Mee-19-2023
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