Hydroxypropyl starch ether (HPS) is a modified starch that is commonly used as a thickener, stabilizer, and emulsifier in a variety of cement or gypsum based mortar applications. It is produced by reacting natural starch, typically derived from corn or potato, with propylene oxide in the presence of an alkali catalyst.

The resulting hydroxypropyl starch ether has improved properties compared to natural starch, including increased solubility, stability, and viscosity. 

In the construction industry, hydroxypropyl starch ether (HPS) is commonly used as a cement additive to improve the workability, strength, and durability of cement-based materials. It is particularly useful in applications where high-performance concrete is required.

When added to cement, HPS acts as a water reducer, which reduces the amount of water required to maintain a workable consistency, while also increasing the strength and durability of the final product. This is because HPS acts as a binder between the cement particles, which improves the cohesion and adhesion of the cement paste.

HPS can also be used as a thickening agent in cement-based mortars and grouts, improving their adhesion and preventing sagging or slumping during application. Additionally, it can be used as a dispersant to reduce the viscosity of cement slurries, which can improve the pumping and placing of concrete.

Key Properties of Hydroxypropyl Starch Ether CAS 9049 76 7

Solubility:

Hydroxypropyl starch ether (HPS) is soluble in water and forms a clear and stable solution with water. The solubility of HPS depends on the degree of substitution and the molecular weight of the polymer.

Viscosity:

HPS has good thickening and stabilizing properties due to its high viscosity. The viscosity of HPS is also dependent on the degree of substitution and the molecular weight of the polymer.

Film-forming ability:

HPS has a good film-forming ability, which makes it suitable for use in coatings and films.

Compatibility:

HPS is compatible with other polymers and can be used in combination with other materials to improve their properties.

Water retention:

HPS has good moisture retention properties and can help to improve the shelf life of cement products.

Adhesion:

HPS has good adhesion properties and can be used as an adhesive in various applications.

As one of hydroxypropyl cellulose suppliers, we will do our best to meet all the needs of customers.

KimaCell® HPMC-P HP55 Hypromellose phthalate can be used as enteric coating materials and sustained-release matrix materials for tablets and granules, enteric capsule binders and microcapsule matrices, implants, gradient release systems, taste-masking agents, microspheres, oral For the preparation of membranes, solid dispersions, etc., the release rate is related to the pH value. Enteric coating material Hydroxypropyl Methylcellulose phthalate, established HPMCP viscosity and group quantitative method, made a preliminary investigation on the physical and chemical properties and stability of HPMCP, studied HPMCP The properties of the free film, and indomethacin and pantoprazole sodium as model drugs, the coating study was carried out. HPMCP was synthesized with hypromellose (HPMC) as the main raw material.

Where to buy Cas 9050-31-1

Specification of HPMC-P HP55

Application of HPMC-P HP55

KimaCell® HPMC-P HP55 is mainly used in enteric coating.

HP-55 is a commonly used model for enteric coating.

Compared with HP55, HP-55S has higher solution viscosity due to its higher polymerization, and the coating film has higher mechanical strength and higher ability to resist gastric acid. These features can effectively reduce the amount of coating solution used, and at the same time, it can effectively prevent the coating film from breaking when it is applied to brittle tablets and granules.

HP-55 can be dissolved in a lower pH environment, so it can be used in pharmaceutical preparations intended to be released in the upper small intestine.

As one of cellulose ether manufacturers, we will do our best to meet all the needs of customers.

Hydroxypropyl methyl cellulose phthalate (HPMC P) , also known as Hypromellose phthalate, is a type of cellulose derivative that is commonly used in pharmaceuticals as a coating agent for solid oral dosage forms such as tablets, capsules, and granules. It is a water-insoluble polymer that is derived from cellulose by esterification of the hydroxyl groups with methyl chloride and propylene oxide, followed by phthalic anhydride.

HPMCP is used as a pH-sensitive polymer, meaning that it is insoluble at low pH (e.g. in the acidic environment of the stomach) but becomes soluble at higher pH (e.g. in the more alkaline environment of the small intestine). This property makes HPMCP an effective enteric coating agent that can protect the drug from acidic degradation in the stomach and deliver it to the intestine, where it can be absorbed more effectively.

In addition to its enteric coating properties, HPMCP is also used as a matrix-forming agent and binder in sustained-release formulations. It has excellent film-forming properties, making it an effective coating agent for tablets, and it can be used to control the release of drugs from solid dosage forms.

HPMCP is an important polymer in pharmaceutical applications, especially in the development of solid oral dosage forms. Its pH-sensitive and film-forming properties make it an effective enteric coating agent and a versatile matrix-forming agent for sustained-release formulations.

What's The Structure of Hydroxypropyl Methyl Cellulose Phthalate?

Hydroxypropyl methyl cellulose phthalate (HPMCP) is a complex polymer with a chemical structure that includes several repeating units. The structure of hpmc phthalate hp 55 is derived from the cellulose molecule, which is modified with the addition of methyl and hydroxypropyl groups, as well as phthalic acid groups.

The basic structure of HPMCP consists of a cellulose backbone with multiple methyl and hydroxypropyl groups attached to the hydroxyl (-OH) groups of the glucose units. These side chains alter the physical and chemical properties of the cellulose backbone, making it more soluble in certain solvents and more resistant to degradation.

In addition to the methyl and hydroxypropyl groups, HPMCP also contains phthalic acid groups that are esterified to the hydroxyl groups of the cellulose backbone. These phthalic acid groups provide HPMCP with its pH-sensitive properties, causing it to become soluble in alkaline environments and insoluble in acidic environments.

The specific structure of HPMCP can vary depending on the degree of substitution of the methyl and hydroxypropyl groups, as well as the degree of phthalation. The degree of substitution refers to the number of methyl and hydroxypropyl groups that are attached to the cellulose backbone, while the degree of phthalation refers to the number of phthalic acid groups that are esterified to the cellulose backbone. The degree of substitution and phthalation can be controlled during the synthesis of HPMCP, allowing for the production of polymers with varying physical and chemical properties.

If you want to know more about hpmc phthalate uses, please visit our website.

As one of cellulose ether suppliers, we will do our best to meet all the needs of customers.

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HPMC MP100MS is Daily chemical hydroxypropyl methylcellulose in shampoo which is a white or slightly yellowish powder, and it is odorless, tasteless and non-toxic. It can be dissolved in cold water and mixed solvent of organic matter to form a transparent viscous solution. The water liquid has surface activity, high transparency, strong stability, and is not affected by pH when dissolved in water. It has thickening and antifreeze effects in shampoos and shower gels, and has water retention and good film-forming properties for hair and skin. With the sharp rise of basic raw materials, the use of cellulose (antifreeze thickener) in shampoo and shower gel can greatly reduce the cost and achieve the desired effect.

Application of HPMC MP100MS

KimaCell® HPMC MP100MS is mainly used as an emulsion stabilizer and thickener in daily chemical products, with a risk factor of 1, which is relatively safe, and generally has no effect on pregnant women, and has no acne-causing properties. It can be used in skin care products to improve skin feel and adjust viscosity; it can be used in shampoo and shower gel to thicken, increase foam, and antifreeze, and it also has water retention and good film-forming properties for hair and skin. With the sharp increase of basic raw materials, the use of HPMC can greatly reduce the cost and achieve the desired effect, so it is very popular. HPMC is also a frequent visitor in toothpaste formula, which can effectively improve the fluidity of the paste.

As a cellulose ether factory, we can provide kinds of related products for sale, anything you need, please contact us.