Hydroxypropyl Methylcellulose (HPMC)

Hydroxypropyl Methylcellulose (HPMC)

Product Overview

Hydroxypropyl Methylcellulose, commonly abbreviated as HPMC and also known as Hypromellose, Methocel, or Methylhydroxypropylcellulose, is a high-performance water-soluble polymer with CAS number 9004-65-3 and molecular formula (C10H18O6)n. Presented as a white or off-white powder, it serves primarily as a thickening agent, while also functioning as a reliable film-former and stabilizer across a diverse range of industries. This versatile polymer meets the strict standards of GB/T 34263, and holds ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and Halal certifications, ensuring quality, environmental responsibility, occupational safety, and compliance with dietary requirements. With a shelf life of 24 months when stored properly, it offers consistent performance for long-term use in various formulations.

Key Technical Specifications

1. Chemical Composition: Hydroxypropyl content 7.5-12.0%; Methoxy content 28.0-30.0%
2. pH Value: 5.0-8.5 (measured in 1% aqueous solution)
3. Packaging: 25KG woven bags
4. Storage Conditions: Tight-closed containers; stored in dry, ventilated, cool place; away from direct sunlight and water
5. Recommended Dosage: 0.1%-10.0% (typically 0.1%-0.3% when used as viscosity enhancer)
6. Certifications: ISO 9001:2015 Quality Management System, ISO 14001:2015 Environmental Management System, ISO 45001:2018 Occupational Health and Safety Management System, HAHAL Halal Certification

Core Performance Features

As a high-performance water-soluble polymer, HPMC boasts a range of exceptional properties that make it a preferred choice in multiple industrial applications. First and foremost, it offers excellent thickening efficiency, enabling it to adjust the viscosity of formulations with minimal dosage. Unlike many alternative thickeners, it maintains stable viscosity across wide pH and temperature ranges, ensuring consistent product performance even under varying processing and usage conditions. Its superior film-forming properties allow it to create transparent, flexible, and durable films, which are valuable in applications like pharmaceutical coatings and personal care product barriers.
Furthermore, HPMC is non-toxic and non-ionic, making it safe for use in products that come into direct contact with the human body, including baby care items and pharmaceutical preparations. Its non-ionic nature also means it is compatible with a wide range of other ingredients, such as surfactants, active pharmaceutical ingredients, and construction additives, without causing unwanted reactions or instability. In detergent and personal care formulations, it effectively controls product viscosity, stabilizes surfactant systems, enhances texture, and improves overall user experience.

Industry Applications

The versatility of HPMC makes it suitable for a broad spectrum of industries, each leveraging its unique properties to enhance product quality and performance:
- Detergent Industry: In laundry detergent liquids and dishwashing liquids, HPMC acts as a viscosity control agent, ensuring the product maintains a consistent, desirable texture that is easy to pour and use. It also stabilizes surfactant systems, preventing ingredient separation and extending product shelf life.
- Personal Care Industry: Shampoos, body washes, lotions, and creams benefit from HPMC's thickening and stabilizing properties. It helps create a smooth, luxurious texture, improves product spreadability, and prevents the separation of oils and aqueous components, ensuring a consistent user experience with every use.
- Pharmaceutical Industry: HPMC serves as a binder in pharmaceutical tablet formulations, holding active ingredients together to ensure uniform dosage and structural integrity. It can also be used as a film-coating agent, providing a protective layer that masks unpleasant tastes, improves tablet stability, and enhances swallowability.
- Construction Industry: As a construction material additive, HPMC improves the workability of mortar and concrete, increases water retention to prevent premature drying, and enhances the adhesion of coatings and renders. Its thickening properties also help control the flow of construction materials, ensuring precise application.
- Paint and Coating Industry: In paint and coating formulations, HPMC acts as a thickener and stabilizer, preventing pigment settling, improving application properties, and ensuring a smooth, even finish.

Key Advantages Over Alternatives

Compared to other thickening agents and polymers, HPMC offers several distinct advantages that set it apart in the market. Its ability to maintain stable viscosity across wide pH and temperature ranges ensures reliable performance in challenging formulations and environments, eliminating the need for frequent adjustments or alternative additives. Its non-toxic, non-ionic composition makes it safe for use in sensitive applications, such as baby products and pharmaceuticals, where safety is paramount.
Additionally, HPMC's superior film-forming properties provide added value in applications where protective or functional films are required, such as pharmaceutical coatings and personal care product barriers. Its compatibility with a wide range of ingredients reduces formulation complexity and the risk of ingredient incompatibility, simplifying the product development process. The fact that it holds multiple international certifications, including ISO and Halal, also makes it a trusted choice for businesses operating in global markets, ensuring compliance with diverse regulatory and cultural requirements.

Target Customer Groups

HPMC caters to a wide range of professional customers across various industries, including: detergent manufacturers, personal care product formulators, pharmaceutical companies, construction material producers, paint and coating manufacturers, chemical raw material wholesalers, and OEM/ODM chemical suppliers. These customers rely on HPMC's consistent quality, versatile performance, and compliance with international standards to enhance their own products and meet the demands of their end-users.

Storage and Handling Guidelines

To ensure the long-term stability and performance of HPMC, proper storage and handling are essential. The product should be stored in tight-closed containers, in a dry, ventilated, and cool place, away from direct sunlight and water. Exposure to moisture or high temperatures can compromise its thickening efficiency and overall performance. When handling HPMC, it is recommended to wear appropriate personal protective equipment, such as gloves and a dust mask, to avoid inhalation of powder or skin contact. Following these guidelines will help maintain the product's quality and extend its shelf life up to the full 24 months.

Common Questions (FAQ)

Q1: What is the recommended dosage of HPMC as a viscosity enhancer?
A: The typical dosage ranges from 0.1% to 0.3%, depending on the specific formulation and desired viscosity level. For other applications, such as film-forming or stabilization, the dosage can be adjusted between 0.1% and 10.0% based on product requirements.
Q2: Is HPMC safe for use in personal care products for babies?
A: Yes, HPMC is non-toxic and non-ionic, making it safe for use in baby care products. Its gentle nature ensures it does not cause irritation to sensitive skin, making it a popular choice in formulations for infants and young children.
Q3: Does HPMC comply with international quality and safety standards?
A: Yes, HPMC holds ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and Halal certifications, demonstrating compliance with strict international standards for quality, environmental management, occupational health and safety, and dietary requirements.
Q4: How does HPMC perform in high-temperature environments?
A: HPMC maintains stable viscosity across wide temperature ranges, ensuring consistent performance even in high-temperature processing or usage conditions. This makes it suitable for applications where heat resistance is a key requirement.
Q5: Can HPMC be used in both aqueous and non-aqueous formulations?
A: HPMC is a water-soluble polymer, so it is primarily used in aqueous formulations. However, it can also be dispersed in certain organic solvents, depending on the specific grade and formulation requirements.