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) Requirements

Appearance and Physical Form

HPMC appears as a white or beige, free-flowing powder. It has no obvious odor and really feels great to the touch. The powder liquifies conveniently in cold water yet does not liquify in warm water, alcohol, or many organic solvents.

Chemical Properties

Chemical Name: Hydroxypropyl Methyl Cellulose
CAS Number: 9004-65-3
Molecular Formula: C₈H₁₅O₇R (differs by substitution).
HPMC is a semi-synthetic polymer made from cellulose. It contains both methoxy and hydroxypropyl teams. These groups provide HPMC its special water solubility and thermal gelation habits.

Key Efficiency Indicators

Viscosity: Varies from 5 mPa · s to 100,000 mPa · s (determined at 2% service, 20 ° C). Thickness depends on the quality selected.
Methoxy Content: Usually in between 19% and 30%.
Hydroxypropyl Material: Normally from 4% to 32%.
pH Value: A 2% aqueous solution reveals a pH of 4.0 to 8.0.
Dampness Material: Not more than 5% by weight.
Ash Material: Listed below 5%, showing high purity.

Product packaging and Storage space

HPMC is packed in multi-layer paper bags with an inner polyethylene liner. Each bag holds 20 kg or 25 kg. Shop the item in an amazing, dry location. Keep it away from dampness and straight sunshine. Appropriately secured containers help preserve security and performance with time.

Safety and Handling

HPMC is safe and generally identified as secure for usage in food, pharmaceuticals, and building and construction products. Wear common safety gear like gloves and safety glasses throughout handling. Stay clear of creating dust. If breathed in or contacted with eyes, rinse completely with water. Always adhere to neighborhood safety regulations.

Applications of Hydroxypropyl Methyl Cellulose HPMC

Applications of Hydroxypropyl Methyl Cellulose (HPMC)

Building Products

HPMC plays an essential role in structure items like tile adhesives, self-leveling compounds, and cement-based provides. It helps control water retention so the cement can treat correctly. This brings about stronger bonds and less fractures. Employees also find blends simpler to spread out since HPMC boosts workability and keeps the material smooth.

Pharmaceuticals

In medicine, HPMC is utilized as a binder, coating agent, or controlled-release active ingredient in tablet computers. It dissolves gradually in the body, which helps provide medicines at a steady price. The material is risk-free, non-toxic, and extensively accepted by wellness regulatory authorities. Several common tablets count on HPMC to work as planned.

Food Market

HPMC works as a thickener, stabilizer, or emulsifier in various foods. You can locate it in sauces, baked items, and low-fat items. It provides structure without changing taste. Since it’s plant-based and approved for intake, food manufacturers use it to boost uniformity and shelf life.

Personal Treatment Products

Tooth paste, shampoos, lotions, and makeup commonly include HPMC. It assists keep active ingredients mixed and provides a smooth feeling throughout usage. The substance likewise adds viscosity so items stay steady in television or bottle. Customers see far better performance and convenience many thanks to this simple additive.

Agriculture and Other Utilizes

Farmers usage HPMC in seed finishes and pesticide solutions. It assists energetic components stick to plants and release slowly. Past that, HPMC shows up in paints, porcelains, and even welding rods. Its capacity to handle wetness, bind bits, and form movies makes it helpful throughout lots of areas.

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.

The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

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

Frequently Asked 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 cosmetics to improve texture and stability.

Is HPMC safe?

Yes, HPMC is considered safe. Regulatory agencies around the world have approved its use. In food, it carries the E number E464. In medicines, it often appears in tablet coatings or eye drops. It does not get absorbed by the body and passes through without causing harm.

How does HPMC work in building materials?

In construction, HPMC helps retain water in cement-based mixes. This gives workers more time to work with the material before it sets. It also improves adhesion and reduces sagging on vertical surfaces. The result is a smoother application and stronger final product.

Can HPMC dissolve in cold water?

Yes, most grades of HPMC dissolve easily in cold water. They do not need heat to mix in. Once added to water, they swell and form a clear, viscous solution. This makes them convenient for use in room-temperature processes.

Does HPMC affect the drying time of products?

HPMC can slow down drying slightly because it holds onto water. This is useful in applications like wall putty or mortar, where you need extra working time. However, the effect is controlled and does not stop the product from drying fully over time.