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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 silane, stearic acid, titanate, vinyl 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 silane, stearic acid and titanate 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
Silane Type Silane Modification Series
Strong Interface Bonding · Excellent Dispersibility · Good Mechanical Properties
HY-ATH-S1 HY-ATH-S2 HY-ATH-S3
High Dispersibility
Strong Interface Bonding
Low Volatiles
Moisture & Heat Resistant
Stearic Acid Type Stearic Acid Modification Series
Good Processability · Low Cost · High Loading
HY-ATH-H1 HY-ATH-H2 HY-ATH-H3
Good Processability
Low Oil Absorption
High Cost-Performance
High Loading
Specialty Type Specialty Modification Series
Vinyl / Epoxy · Reactive · High-end Customization
HY-ATH-V1 HY-ATH-E1 Customized
Reactive
Chemical Bonding
High-end Applications
Customizable
💡
Selection Guide: For wires & cables and composite materials where dispersibility and mechanical properties are required, the Silane Modification Series is preferred. For cost-sensitive general-purpose filled modified plastics, the Stearic Acid Modification Series is recommended. For high-end applications that require chemical bonding with the matrix, the Specialty Modification Series is the ideal choice. Actual specifications are subject to the test reports issued with each batch.
TECHNICAL PARAMETERS
Product Technical Parameters
Main specifications of Modified Aluminum Hydroxide (Examples)
📊 Silane Modification Series
Model No. Al(OH)₃ Content
(%)		 D50
(μm)		 Specific Surface Area
(m²/g)		 Oil Absorption Value
(g/100g)		 Moisture
(%)		 pH Value
HY-ATH-S1 ≥99.5 1.5±0.3 3.0~4.5 28~35 ≤0.3 7.5~9.0
HY-ATH-S2 ≥99.5 2.5±0.5 2.5~3.5 25~32 ≤0.3 7.5~9.0
HY-ATH-S3 ≥99.0 4.0±1.0 1.8~2.8 22~30 ≤0.3 7.5~9.0
📋 The Silane Modification Series delivers excellent dispersibility and strong interface bonding, suitable for applications requiring high mechanical and electrical performance. Actual specifications are subject to the test reports issued with each batch.
📊 Stearic Acid Modification Series
Model No. Al(OH)₃ Content
(%)		 D50
(μm)		 Specific Surface Area
(m²/g)		 Oil Absorption Value
(g/100g)		 Moisture
(%)		 pH Value
HY-ATH-H1 ≥99.0 2.0±0.4 2.5~4.0 25~30 ≤0.3 7.5~9.0
HY-ATH-H2 ≥99.0 3.5±0.8 1.8~3.0 22~28 ≤0.3 7.5~9.0
📋 The Stearic Acid Modification Series offers good processability and clear cost advantages, ideal for large-scale filled modified plastic products. 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 (silane, stearic acid, titanate, vinyl, 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
Five Major Application Areas
Covering wires & cables, electronics, composites, coatings & inks, building materials and other core fields
Wires & Cables Application
Application 01
Wires & Cables
Used for flame retardant modification of PVC, PE, XLPE and other cable compounds, providing cables with excellent flame retardant, smoke suppression and low toxicity performance. Meets safety standards for construction, telecommunications and power fields.
Electronics & Electricals Application
Application 02
Electronics & Electricals
Applied in flame retardant reinforcement of electronic housings, connectors and circuit boards. Provides good electrical insulation and heat resistance; meets electronic product safety standards.
Composite Materials Application
Application 03
Composite Materials
Used for flame retardant filling of thermoset and thermoplastic composites. Improves resin matrix processing flow and enhances product dimensional stability and flame retardant grade.
Coatings & Inks Application
Application 04
Coatings & Inks
As a functional filler in flame retardant coatings and inks, the product improves coating flame retardancy, weatherability and mechanical strength; also enhances dispersion and leveling performance.
Building Materials Application
Application 05
Building Materials
Used for flame retardant modification of aluminum-plastic panels, insulation materials and decorative boards. Improves fire safety grade and eco-performance of building materials.
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