Introduction to Hydroxypropyl Methyl Cellulose HPMC

Hydroxypropyl Methylcellulose (HPMC), whose Chinese name is hydroxypropyl methylcellulose, is a semi-synthetic, non-ionic cellulose ether obtained by chemically modifying natural cellulose. This white powder can form a transparent viscous solution after dissolving in water. It has excellent thickening, water retention, stability and film-forming properties. It is an indispensable multifunctional additive in many fields such as construction.

Characteristics and advantages of Hydroxypropyl Methyl Cellulose HPMC

Excellent water solubility: It can be quickly dissolved in cold water to form a clear and stable solution.

Efficient thickening and water retention ability: Increase the viscosity of the material, effectively reduce water evaporation, and improve work efficiency.

Good stability: It has good stability to acids, alkalis, and salts, and is suitable for a wide range of pH values.

Film-forming and protective effects: After drying, it forms a tough and transparent film to protect the substrate and prevent water penetration and evaporation.

Non-toxic and non-irritating: It has good biocompatibility and is suitable for the fields of medicine and food.

Adjustability: By changing the degree of substitution and molecular weight, its performance can be adjusted to meet different application requirements.

Specifications of Hydroxypropyl Methyl Cellulose HPMC

Hydroxypropyl Methyl Cellulose (HPMC)– Product Specifications

Chemical Identity

Hydroxypropyl Methyl Cellulose (HPMC) is a semi-synthetic, water-soluble polymer made from cellulose. It appears as a white to beige powder. The material has no odor and is non-toxic. HPMC satisfies food, pharmaceutical, and industrial grade standards.

Physical Residences

The powder flows easily and dissolves conveniently in cool water. It forms a clear to slightly over cast thick remedy. HPMC does not liquify in warm water above 70 ° C but will gel when heated up. As soon as cooled, it redissolves. Its thickness ranges from 5 mPa · s to over 100,000 mPa · s, relying on the quality.

Pureness and Structure

Regular HPMC consists of:
– Methoxy groups: 19%– 30%.
– Hydroxypropoxy groups: 4%– 32%.
– Wetness content: ≤ 5%.
– Ash web content: ≤ 1.5%.
– pH (2% solution): 4.0– 8.0.

Hefty metals and microbial limits comply with pertinent pharmacopeial demands (e.g., USP/NF, EP, JP).

Functional Performance

HPMC works well as a thickener, binder, movie previous, and water-retention agent. In construction products like floor tile adhesives and provides, it aids maintain water in the mix much longer, enhancing workability and attachment. In drugs, it controls drug launch and functions as a tablet binder. In food, it stabilizes solutions and enhances appearance.

Storage and Handling

Store HPMC in an amazing, dry place away from moisture. Maintain containers securely shut. The service life is generally 24 months when saved correctly. Avoid call with strong oxidizing representatives. Use common industrial health practices throughout handling.

Applications of Hydroxypropyl Methyl Cellulose HPMC

Applications of Hydroxypropyl Methyl Cellulose (HPMC)

Construction Materials

HPMC is widely made use of in building items like ceramic tile adhesives, cement plasters, and self-leveling substances. It assists control water retention so cement can heal properly. This enhances workability and minimizes splitting. Contractors depend on HPMC to make mixes smoother and easier to spread out.

Drugs

In medicine, HPMC acts as a binder, layer representative, or controlled-release component. It is secure for human usage and liquifies slowly in the body. Medication manufacturers include it to tablet computers to assist them hold form or launch medicine in time. Eye decreases likewise make use of HPMC to keep wetness on the eye surface area.

Food Market

HPMC jobs as a thickener, stabilizer, or emulsifier in numerous foods. You can find it in sauces, dairy products alternatives, and baked items. It aids maintain textures consistent and avoids active ingredients from dividing. Because it is plant-based and non-digestible, it matches vegan and low-calorie diet regimens.

Personal Treatment Products

Toothpaste, shampoos, and creams usually consist of HPMC. It gives these products a smooth feeling and assists them remain combined. In toothpaste, it holds water and maintains the paste from drying out. In lotions, it develops a light movie that locks in dampness.

Agriculture

Farmers usage HPMC in seed finishes and pesticide formulas. It aids active ingredients adhere to plants and release gradually. This increases performance and cuts down on waste. Seed treatments with HPMC likewise sustain much better germination in dry conditions.

Paints and Coatings

Paint manufacturers include HPMC to enhance structure and application. It quits pigments from settling and makes paint circulation uniformly. Wall surfaces obtain an uniform finish without drips or brush marks. The additive also assists paint withstand splashing during use.

Company Profile

We are the global leader in lightweight concrete and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012’s.

We can supply high-quality concrete admixture and foam concrete related products all over the world.

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If you are interested, please feel free and contact us.

Payment

T/T, Western Union, Paypal, Credit Card etc.

Shipment

By air, by sea, by express, as customers request.

5 FAQs of Hydroxypropyl Methyl Cellulose HPMC

Common Questions About Hydroxypropyl Methyl Cellulose (HPMC)

What is HPMC used for?

HPMC is a common additive in many products. It works as a thickener, binder, and film-former. You will find it in construction materials like tile adhesives and plasters. It is also used in food, pharmaceuticals, and personal care items such as toothpaste and lotions.

Is HPMC safe to use?

Yes, HPMC is considered safe. Regulatory agencies around the world have approved it for use in food and medicines. It does not get absorbed by the body when taken orally. In building products, it poses no health risk when handled properly.

How does HPMC improve construction materials?

HPMC helps control water retention in cement-based products. This allows cement to hydrate fully, which strengthens the final material. It also improves workability, making mixtures easier to spread and shape. Plus, it reduces sagging on vertical surfaces.

Can HPMC dissolve in cold water?

Yes, most grades of HPMC dissolve well in cold water. They do not need heat to mix in. However, you must add the powder slowly while stirring to avoid clumping. Some special types are designed for hot-water dispersion, but cold-water-soluble versions are more common.

Does HPMC affect product shelf life?

HPMC itself is stable and does not spoil. In dry form, it can last for years if stored in a cool, dry place. In liquid products, it may support microbial growth if no preservatives are added. So, manufacturers often include preservatives when using HPMC in water-based formulas.