Prix FOB
Obtenir le dernier prix( Negotiable )
|20 Kilogram Minimum Order
Pays:
China
N ° de modèle:
DS-carbomer-14
Prix FOB:
( Negotiable ) Obtenir le dernier prix
Localité:
Ezhou city,Hubei province,china
Prix de commande minimale:
-
Commande minimale:
20 Kilogram
Packaging Detail:
20kg/paper package
Heure de livraison:
4-10 days
Capacité de Fournir:
1000 Kilogram
Payment Type:
T/T, L/C
Groupe de produits :
Personne àcontacter jing zhao
Business Address:C8-2, Optics Valley United Technology City, Huarong District, Ezhou, Hubei
Carbomer
**0 overview
The English name
of Carbomer **0 is Carbomer **0. It is a white fluffy powder; it
has a characteristic slightly odor; it has strong hygroscopicity.
It is copolymerized with acrylic acid as the monomer, acrylic acid
sucrose ether or pentaerythritol allyl ether as the crosslinking
agent. The resulting polymer often exists in water in an acidic
form, and is easy to swell in water and polar organic solvents
(such as ethanol, glycerin, etc.).
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Carbomer
**0 technical indicators
Brand Capo:
**0
Appearance: loose
white powder, slightly acidic
pH value (0.5%
aqueous solution): 2.**3.5
Viscosity (in 0.5%
aqueous solution): **********0
Apparent density
:0.*1g/cm3
Residual solvent
:<0.*5
Loss on drying:
<2%
Residual acrylic
:<0.*5
Bulk density:
*1.***7.0
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Carbomer
**0 performance
1. Carbo **0 is
white and loose; it is acidic, hygroscopic and slightly smelly. It
is soluble in water, ethanol, and glycerin. The usual concentration
is 0.1%～3.0%. Since its molecule
contains a large number of carboxyl groups, the aqueous solution
should be used after neutralization with alkali to reduce the
irritation to the skin and mucous membranes. The neutralizer of
Carbo **0 can be sodium hydroxide, potassium hydroxide, potassium
bicarbonate, and borax. , Amino acids, polar organic amines such as
triethanolamine.
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2. The water
swellability of carbomer mainly depends on the cross-linking
density of the polymer. If the cross-linking density is too high,
it will cause water molecules to not smoothly diffuse into the
inside of the polymer particles, and the carbomer cannot swell
completely and cannot be uniform. If the cross-linking density is
too low, although its water swellability is excellent, it will
reduce its gel degree, resulting in a decrease in the thickening
effect.
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3. The light
transmittance of carbomer is also closely related to its water
swellability. Generally, the better its water swellability, the
higher the light transmittance. The level of cross-linking density
is generally measured by measuring the water absorption of
carbomer. Generally, the higher the water absorption, the lower the
cross-linking density. As the amount of crosslinking agent
increases, the wetting time gradually increases, the light
transmittance gradually decreases, and the water absorption rate
gradually decreases.
Application of Carbomer
**0
1. Application in
external gels: ophthalmic gels, skin gels, dental gels, oral gels,
and disposable disinfectant gels.
2. Application in
bioadhesive preparations: bioadhesive preparations for nasal
cavity, oral or oral bioadhesive preparations, bioadhesive
preparations for vagina;
3. Application in
oral protein and peptide drug delivery system;
4. Application in
sustained and controlled release preparations;
5. Application in
transdermal drug delivery formulations;
6. Application in
other preparations.
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Desheng is a
professional carbomer manufacturer. At present, the company sells
carbomer **0, carbomer **0 and other models, with sufficient supply
and an average daily mass production of about 3 tons. The delivery
is fast, the quality is guaranteed, and a professional after-sales
team will answer your questions. Now you can apply for a free
sample online for trial. Please feel free to contact us if you need
it.
| Pays: | China |
| N ° de modèle: | DS-carbomer-14 |
| Prix FOB: | ( Negotiable ) Obtenir le dernier prix |
| Localité: | Ezhou city,Hubei province,china |
| Prix de commande minimale: | - |
| Commande minimale: | 20 Kilogram |
| Packaging Detail: | 20kg/paper package |
| Heure de livraison: | 4-10 days |
| Capacité de Fournir: | 1000 Kilogram |
| Payment Type: | T/T, L/C |
| Groupe de produits : | Carbomer |
