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sales@landu-china.com +86 150 693 53616
🧪 Premium HEC Solution
LANDU Hydroxyethyl Cellulose (HEC)

High‑Performance Thickener & Stabilizer for Emulsion Polymerization

In emulsion polymerization, rheology control and colloidal stability define production success.

As a trusted cellulose‑ether manufacturer, LANDU delivers high‑purity Hydroxyethyl Cellulose (HEC) engineered specifically for emulsion‑polymer systems.

Our HEC ensures stable emulsions, smooth polymerization, and consistent final‑product quality — meeting the demanding standards of VAE, acrylic, styrene‑acrylic, and other water‑borne polymer emulsions worldwide.

⚗️
Rheology Control
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Colloidal Stabilitás
✓
High Tisztaság
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Water-Borne Systems
VAE Emulsion Acrylic Polymer Styrene-Acrylic Water-Borne Polymer
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Industrial Grade Emulsion Systems
⭐
Prémium Quality HEC
⚗️ Technical Functions

Role of HEC in Emulsion Polymerization

During polymerization, HEC serves as both a protective colloid and a dynamic rheology modifier, enabling controlled particle growth and improved processing stability.

1
🛡️

Protective Colloid Function

• Forms a thin, uniform colloidal film around monomer droplets.
• Prevents particle agglomeration and reduces coagulum formation.
• Promotes narrow, controlled particle size distribution.
2
💧

Thickening & Viscosity Control

• Provides balanced viscosity throughout polymerization.
• Enhances dispersion of monomers and additives for smooth mix flow.
• Maintains homogeneous reaction conditions.
3
🔬

Emulsion Stabilization

• Improves long‑term storage stability of finished emulsions.
• Minimizes sedimentation and syneresis.
• Strengthens freeze–thaw and handling resistance.
4
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Improved Film‑Forming Behavior

• Enhances coating flow and leveling in downstream applications.
• Contributes to film smoothness and optical clarity in VAE and acrylic formulations.
⭐ Product Benefits

Advantages of LANDU® HEC for Polymer Manufacturers

✔

High Biological Stability

Resists microbial degradation during processing and storage.

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cURL Too many subrequests.		 Részecskeméret Fő jellemzők
⭐ HE30
cURL Too many subrequests. mPa·s 6% 5% 98 % pass
80 háló 		Stable viscosity profile and excellent protective colloid function
💰 HE60
2,500 – 3,500 mPa·s 6% 5% 98 % pass
80 háló 		Strong suspension capacity and cost‑effective performance
💪 HE100BE
3,500 – 5,000 mPa·s 6% 5% 98 % pass
80 háló 		High thickening grade offering maximum viscosity and stability
📌 Custom viscosity grades and surface‑treated options available upon request.
🎯 Application Areas

Applications of LANDU HEC in Emulsion Polymerization

🧪

VAE Emulsions

Vinyl Acetate‑Ethylene systems for adhesives and coatings

🎨

Pure Acrylic Emulsions

Architectural binders and high-performance coatings

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Styrene‑Acrylic Systems

Vinyl‑acrylic formulations for diverse applications

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Construction Binders

Adhesives and emulsion binders for building materials

💧

Waterborne Latex

Resin emulsions for eco-friendly formulations

✓

Compatible with both batch és semi‑continuous polymerization processes.

🏆 Why Partner With Us

Why Choose LANDU as Your HEC Partner

⭐

REACH & ISO Certified Manufacturing

Guaranteed compliance and safety for global distribution.

⭐

Advanced Process Control & Quality Assurance

Strict viscosity and purity monitoring for consistent batch results.

⭐

Szakértői műszaki támogatás

Formulation assistance for VAE, acrylic, and styrene‑acrylic polymerization systems.

⭐

Reliable Global Supply

Efficient logistics via FedEx / DHL with fast delivery and documentation.

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🎁
Ingyenes Sample Kit
📦 Free Testing Program

Request Free Sample & Technical Documentation

Experience the performance yourself — request a free sample kit including:

• HEC sample (200–600 g per grade)
• Technical Data Sheet (TDS) and Certificate of Analysis (COA)
• Formulation guidelines for VAE or acrylic systems
📩 Contact Us Now → Optimize Your Emulsion Polymerization with LANDU HEC
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LANDU cURL Too many subrequests.

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❓ GYIK

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cURL Too many subrequests. Agitate slowly while sprinkling HEC powder.
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This method ensures lump‑free dispersion and stable viscosity development.

Q3.

Is LANDU HEC compatible with common initiators and surfactants?

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A:

Igen. HEC is a nonionic polymer and shows excellent compatibility with standard water‑soluble initiators such as ammonium persulfate (APS), sodium bisulfite, and redox systems, as well as with most anionic, cationic, and nonionic surfactants.

It does not interfere with free‑radical polymerization or emulsion stability.

Q4.

What is the pH and temperature stability of LANDU HEC during polymerization?

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A:

LANDU HEC maintains stable viscosity and protective colloid function across pH 2 – 12 and temperatures up to 90 °C under normal reaction conditions.

It remains chemically inert and does not alter the polymer backbone or initiator efficiency.

Q5.

Does HEC influence the final emulsion particle size or film properties?

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A:

Yes — positively. HEC reduces particle agglomeration, leading to narrower particle size distribution and smoother film formation.

In downstream coating applications, this results in better flow, leveling, and film clarity without affecting gloss or adhesion.

Q6.

What precautions are recommended to prevent microbial growth in HEC solutions?

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A:

Although LANDU HEC has high biological stability and enzyme resistance, we recommend adding 0.05–0.2 % biocide or preservative to the aqueous solution if it will be stored for several days before use.

Maintain a closed tank and avoid extended exposure to warm, humid conditions.

Q7.

How should HEC powder be stored to retain quality?

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A:

Store in the original sealed bag under dry, cool conditions (≤ 35 °C, RH < 60 %). Keep away from moisture and direct sunlight.

When stored properly, LANDU HEC retains full performance for 24 months. After opening, reseal immediately to prevent moisture absorption.

Q8.

Can LANDU provide customized HEC grades for specific polymerization systems?

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A:

Abszolút. We develop tailor‑made HEC grades with modified viscosity, particle size, or surface treatment to suit high‑shear reactors, fast‑feed emulsion processes, or low‑temperature polymerizations.

Our R&D lab offers pilot‑testing and rheology simulation support for custom projects.

Q9.

Are free samples and technical documents available for evaluation?

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A:

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