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Modified Aluminum Hydroxide Overview - Guangdong Hico New Materials
KEY INDICATORS
Product Key Indicators
A glance at the key performance parameters of Modified Aluminum Hydroxide
≥99
Aluminum Hydroxide Content (%)
High-purity flame retardant filler
30+
Featured Models
Covering multiple application scenarios
Low
Oil Absorption Value
Reduced processing viscosity
High
Dispersibility & Compatibility
Compatibility with organic matrices
PRODUCT ADVANTAGES
Product Core Advantages
Eco-Friendly Halogen-Free Flame Retardancy · Excellent Dispersibility & Compatibility · Enhanced Overall Performance
01
🔥
High-Efficiency Halogen-Free Flame Retardancy
ATH content ≥99%. Endothermic decomposition releases water vapor to dilute combustible gases with excellent smoke suppression. Compliant with RoHS / REACH environmental standards.
02
⚡
Low Oil Absorption Value
Surface modification significantly reduces oil absorption, effectively lowering the formulation viscosity during processing, improving production efficiency and saving raw material costs.
03
🔬
Excellent Dispersibility
An organic coating is formed on the particle surface after modification, effectively preventing particle agglomeration and delivering significantly improved dispersibility for uniform distribution in organic matrices.
04
🔗
Excellent Compatibility
Significantly reduced surface polarity and dramatically improved compatibility with non-polar organic systems. Reduces interface defects caused by polarity differences without compromising mechanical performance.
05
🌿
Eco-Friendly & Safe
Halogen-free, low smoke, non-toxic. Combustion products are aluminum oxide and water with no corrosive gases. Meets the environmental requirements of high-end fields such as electronics and new energy vehicles.
06
🎯
Customized Modification
Multiple surface modification options are available, including vinyl, stearic acid, alkyl, isocyanate and epoxy. Customized development is available based on customer matrix systems and processing needs.
SURFACE MODIFICATION
Post-Modification Advantages
Comprehensive performance enhancement brought by surface modification

🧪 Why is Surface Modification Needed?

Raw aluminum hydroxide has abundant active hydroxyl groups on its particle surface and strong polarity, making it difficult to disperse uniformly in organic polymer matrices and prone to agglomeration, high oil absorption, and poor compatibility with the matrix. Through surface organic coating modification, processing performance and application results in organic systems can be significantly improved.

🧲
Significantly Reduced Polarity
Surface organic coating masks active hydroxyl groups, dramatically lowering the surface polarity.
🌊
Greatly Improved Dispersibility
Effectively prevents particle agglomeration for uniform distribution in organic matrices.
💧
Lower Oil Absorption Value
Reduces processing viscosity for higher production efficiency.
🤝
Excellent Compatibility
Greatly improves compatibility with organic matrices for tighter interface bonding.
💪
No Compromise on Mechanical Properties
Does not degrade substrate mechanical performance; prevents material embrittlement.
PRODUCT SERIES
Product Series
Multiple surface modification options for different application requirements

🧪 Modified Aluminum Hydroxide Product System

Hico Modified Aluminum Hydroxide uses high-purity aluminum hydroxide as the base material and applies surface treatment technologies such as vinyl, stearic acid, alkyl, isocyanate and epoxy to achieve organic surface modification of the particles. Widely applied in wires & cables, electronics & electricals, composite materials, coatings & inks and other fields, providing customers with efficient, eco-friendly and customized flame retardant solutions.

Modified Aluminum Hydroxide Microstructure
Vinyl Type Vinyl Series
Strong Interface Bonding · Excellent Dispersibility · Reactive
ATH-1 ATH-2 ATH-2A ATH-5B ATH-08C ATH-10
Strong Interface Bonding
Excellent Dispersibility
Reactive
Halogen-Free & Eco-Friendly
Stearic Acid Type Stearic Acid Series
Good Processability · Low Cost · High Loading
ATH-3
Good Processability
Low Cost
High Loading
Cost-Effective
Alkyl Type Alkyl Series
Strong Hydrophobicity · Moisture & Heat Resistant · Low Oil Absorption
ATH-10B ATH-10J ATH-MS1
Strong Hydrophobicity
Moisture & Heat Resistant
Low Oil Absorption
Good Weatherability
Isocyanate Type Isocyanate Series
High Reactivity · Chemical Bonding · High-end Applications
ATH-6
High Reactivity
Chemical Bonding
High-end Applications
Customizable
Epoxy Type Epoxy Series
Strong Interface Bonding · High-end Applications · Customizable
ATH-5A ATH-10C
Strong Interface Bonding
High-end Applications
Customizable
Chemical Bonding
💡
Selection Guide: For wires & cables and composite materials requiring strong interface bonding and excellent dispersibility, the Vinyl Modification Series is preferred. For general-purpose filled modified plastics sensitive to cost, the Stearic Acid Modification Series is recommended. For outdoor products requiring moisture & heat resistance and low oil absorption, the Alkyl Modification Series is ideal. For high-end applications requiring chemical bonding with the matrix, choose the Isocyanate or Epoxy Modification Series. Actual specifications are subject to the test reports issued with each batch.
TECHNICAL PARAMETERS
Product Technical Parameters
Complete technical parameters of Modified / Unmodified full series
📊 Modified Aluminum Hydroxide (Grouped by Modification Type)
Model No. Whiteness D50
(μm)		 D90
(μm)		 Oil Absorption
(g/100g)		 Moisture
(%)
Vinyl Type
ATH-1≥970.8-2.03.0-5.018-35≤0.5
ATH-2≥970.8-2.03.0-5.018-35≤0.5
ATH-2A≥970.8-2.53.0-5.018-35≤0.5
ATH-5B≥934.5-6.511.5-15.515-30≤0.5
ATH-08C≥965.00-8.5018.50-25.5010-20≤0.5
ATH-10White≤13.50≤28.5010-20≤0.5
Stearic Acid Type
ATH-3≥970.9-3.82.8-4.815-30≤0.5
Alkyl Type
ATH-10B≥93≤13.5≤28.55-15≤0.5
ATH-10J≥93≤13.50≤28.50≤29≤0.5
ATH-MS1White1.25-2.753.25-5.0028-38≤0.5
Isocyanate Type
ATH-6≥93≤13.5≤28.55-15≤0.5
Epoxy Type
ATH-5A≥934.50-6.5012.00-16.0015-30≤0.5
ATH-10C≥93≤13.50≤28.5010-18≤0.5
📋 Covering five surface modification types (vinyl, stearic acid, alkyl, isocyanate, epoxy) with 13 featured models. Actual specifications are subject to the test reports issued with each batch.
📊 Aluminum Hydroxide (Unmodified)
Model No. Whiteness D50
(μm)		 D90
(μm)		 Oil Absorption
(g/100g)		 Moisture
(%)
HY-AH-3≥973.0-4.010.0-13.033-45≤0.5
HY-AH-5≥974.0-5.013.0-15.030-42≤0.5
HY-AH-10≥978.0-9.027.0-30.025-35≤0.5
HY-AH-25≥9020.0-28.0/23-32≤0.5
HY-AH-50≥8046.0-54.0/20-30≤0.5
📋 Unmodified aluminum hydroxide raw powder, suitable for general-purpose flame retardant filling applications without special surface treatment requirements. Actual specifications are subject to the test reports issued with each batch.
Product Warehouse
Product Testing
PRODUCT INTRODUCTION
Product Introduction
Modified Aluminum Hydroxide · Eco-Friendly Halogen-Free Flame Retardant Filler

Aluminum Hydroxide (Al(OH)₃) is an important inorganic eco-friendly flame retardant filler with multiple functions including flame retardancy, smoke suppression and filling. Hico Modified Aluminum Hydroxide adopts advanced surface modification technology that maintains the original flame retardant performance of ATH while significantly improving its dispersibility, compatibility and processability in organic polymer matrices.

The product uses surface organic coating treatment, effectively reducing particle surface polarity, decreasing oil absorption value, lowering formulation viscosity and increasing filler loading. At the same time it improves interface bonding with organic matrices, prevents material embrittlement and enhances the overall mechanical and electrical performance of finished products. Widely used in flame retardant modification of wires & cables, electronics & electricals, automotive interiors and building materials.

Hico provides multiple surface modification options (vinyl, stearic acid, alkyl, isocyanate, epoxy, etc.) and a wide range of particle size specifications. Customized development is available based on the specific application requirements of each customer, delivering professional flame retardant solutions for different industries and scenarios.

Al(OH)₃ Halogen-Free Flame Retardant Smoke Suppression Eco-Friendly Surface Modification Low Oil Absorption High Dispersibility
✓
Eco-Friendly & Halogen-Free
Compliant with RoHS / REACH; combustion products are non-toxic and harmless.
✓
High-Efficiency Flame Retardancy & Smoke Suppression
Endothermic decomposition dilutes oxygen; significantly reduces smoke density.
✓
Excellent Processability
Low oil absorption, low viscosity, high loading, and easy processing.
✓
Mechanical Properties Preserved
No compromise on substrate mechanical performance; prevents embrittlement.
✓
Excellent Electrical Insulation
Suitable for insulation materials in wires & cables and electronics.
✓
Customization Services
Multiple modification options and particle sizes are available and customizable.
APPLICATION AREAS
Four Major Application Areas
Covering flame retardancy, insulation, cables, plastics and other core industrial fields
Flame Retardant Silicone Rubber Application
Application 01
Flame Retardant Silicone Rubber
As a halogen-free flame retardant filler, modified aluminum hydroxide effectively enhances the flame retardancy of silicone rubber while maintaining excellent mechanical and processing properties. Widely applied in electronics & electricals, automotive components and other fields.
Composite Insulators Application
Application 02
Composite Insulators
Adding modified aluminum hydroxide to the shed material of composite insulators significantly improves arc resistance and flame retardant grade, ensuring safe and stable operation of high-voltage transmission lines.
Wires & Cables Application
Application 03
Wires & Cables
Used for flame retardant modification of cable sheaths and insulation layers, meeting halogen-free low-smoke flame retardant standards. Widely applied in building wiring, rail transit, new energy and other high-end fields.
Modified Plastics Application
Application 04
Modified Plastics
Used as a flame retardant filler in PP, PE, EVA and other plastic matrices. The modified aluminum hydroxide disperses uniformly, significantly improving the flame retardant grade and mechanical properties of plastics.
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