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Hydroxypropyl Methylcellulose (HPMC)

Hydroxypropyl Methylcellulose

Comprehensive Guide to Hydroxypropyl Methylcellulose (HPMC) by Ningbo Wanhong Ruiquan Technology Co., Ltd.

Introduction

Hydroxypropyl Methylcellulose (HPMC) is a non-ionic cellulose ether used in a wide range of industries including construction, pharmaceutical, personal care and food production. Ningbo Wanhong Ruiquan Technology Co., Ltd. specializes in producing high quality HPMC that meets stringent international standards. in this article, we delve into the molecular structure, properties and applications of HPMC to show why we are a trusted global supplier.

What is Hydroxypropyl Methylcellulose (HPMC)?

Hydroxypropyl Methylcellulose (HPMC)is a chemically modified derivative of natural cellulose. It is produced by replacing the hydroxyl groups on the cellulose backbone with methoxy (-OCH₃) and hydroxypropyl (-CH2CHOHCH₃). This modification enhances its solubility, thermogelability and functional diversity.

Molecular Formula:

The molecular formula of Hydroxypropyl Methylcellulose (HPMC) varies depending on the degree of substitution (DS) and molar substitution (MS). Its general structure is represented as:

[C₆H₇O₂(OR₁)(OR₂)(OR₃)]_n[C₆H₇O2(OR₁)(OR2)(OR₃)]_n

  • R₁, R₂, R₃ represent hydrogen (-H), methoxy (-CH₃), or hydroxypropyl (-CH₂CHOHCH₃) groups.
  • n is the degree of polymerization.

Key Specifications:

  • Methoxy Content: 19–30%
  • Hydroxypropyl Content: 4–12%
  • Viscosity: 5–200,000 mPa·s (as per customer requirement)
  • Solubility: Soluble in cold water, forming a clear or slightly turbid solution.

Properties of HPMC

1.Water Retention:

Exceptional water retention makes Hydroxypropyl Methylcellulose (HPMC) ideal for cement-based and gypsum-based products, enhancing workability and hydration.

2.Thermal Gelation:

Forms a reversible gel upon heating, suitable for specific applications like coatings and adhesives.

3.pH Stability:

Stable across a broad pH range (3–11), allowing its use in various formulations.

4.Non-Ionic Nature:

Compatible with ionic and non-ionic additives, ensuring versatility in formulations.

5.Film-Forming Capability:

Creates flexible, durable films for coatings, tablets, and packaging applications.

Applications of HPMC

1.Construction Industry

Hydroxypropyl Methylcellulose (HPMC) improves the performance of construction materials by:

  • Enhancing workability and adhesion in cement-based mortars and tile adhesives.
  • Ensuring uniform water retention in self-leveling compounds and plasters.
  • Stabilizing external insulation and finish systems (EIFS/ETICS).

2.Pharmaceutical Industry

  • Binder: Improves tablet cohesion and hardness.
  • Film Coating Agent: Provides controlled release and protection against environmental factors.
  • Excipient: Used in drug delivery systems for precise dosage release.

3.Personal Care Products

  • Stabilizes emulsions in creams, lotions, and gels.
  • Provides a smooth texture and viscosity control in shampoos and conditioners.

4.Food Industry

  • Functions as a thickener, stabilizer, and emulsifier in sauces and dressings.
  • Enhances the texture and stability of gluten-free baked goods.

Why Choose Ningbo Wanhong Ruiquan Technology Co., Ltd. for HPMC?

1.Cutting-Edge Technology

We employ state-of-the-art equipment and strict quality control to ensure high-purity HPMC.

2.Customization Expertise

Tailored solutions for specific applications, whether in construction, pharmaceuticals, or food.

3.Reliable Supply Chain

Efficient production lines and logistics guarantee timely delivery worldwide.

4.Sustainability Focus

Our eco-friendly production processes align with global environmental standards.

For high-quality Hydroxypropyl Methylcellulose backed by expertise and reliability, choose Ningbo Wanhong Ruiquan Technology Co., Ltd

Sales Managers

Ada

Hi everyone, I am the author of this article and I have been working in this field for more than 8 years. If you want to wholesale cellulose and latex powder and other related products, please feel free to ask me any questions.

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