Ịdị ọcha dị elu 99% PVP/Polyvinylpyrrolidone
Nkọwa ngwaahịa
PVP (polyvinylpyrrolidone) bụ polymer soluble mmiri nwere ihe na-emepụta ihe nkiri. A na-eji ya n'ọtụtụ ebe na ọgwụ (dịka ọmụmaatụ ụda olu plasma ma ọ bụ lenses kọntaktị). Arọ molekụla bụ K-90 (111.14 g/mol)
Uru
- Ihe na-emepụta ihe na-eme ka ọ dị mma na ihe nkiri mbụ maka gels ntutu, ntutu ntutu na nrapado ntụ ntụ na gels
- Ọkwa ojiji ka amachiri naanị site na viscosity
- Ezigbo pH kwụsiri ike, enweghị ionic na enweghị agba
- Kachasị mma mgbe ejikọtara ya na carbomer ma ọ bụ ihe ndị ọzọ na-agba agba iji nye ike na gels ntutu
- Ọ na-arụkwa ọrụ dị ka onye na-ekesa maka titanium dioxide na pigmenti organic
Jiri
A na-ejikarị ọkwa 1-40%, ihe dịka 4-7% na gels ntutu. Tinye na usoro mmiri nke usoro, hydrate & wee gwakọta nke ọma. Maka ojiji mpụga naanị.
Ngwa
Ngwaahịa na-elekọta ntutu isi, ihe nkiri nrapado na-akpụ gels, ihe ịchọ mma agba.
Dee ozi gị ebe a ziga anyị ya
