Methyl Nadic Anhydride (MNA) Manufacturer & Supplier
Methyl Nadic Anhydride (MNA) (CAS No. 25134-21-8) is a liquid cycloaliphatic anhydride curing agent engineered for high-performance epoxy resin systems. The broader anhydride product portfolio also includes MTHPA, MHHPA, HHPA, and THPA, alongside complementary liquid epoxy resins and accelerators.
Formulators, insulation manufacturers, and material processors are supported with verified technical data, batch-specific Certificates of Analysis (COA), and stable export supply.
Technical Specifications
|
Parameter |
Procurement Consideration & Testing Scope |
|
Product Name |
Methyl Nadic Anhydride (MNA) |
|
CAS Number |
25134-21-8 |
|
Appearance |
Clear liquid (Confirm visual clarity and colour limits) |
|
Purity (%) |
Verify specified minimum and gas chromatography (GC) test method |
|
Viscosity (mPa·s) |
Confirm value and test temperature (typically at 25°C) |
|
Free Acid / Acid Value |
Verify titration method and maximum allowable limits |
|
Density / Specific Gravity |
Reference temperature verification for volumetric conversion |
|
Anhydride Equivalent Weight |
Essential for stoichiometric ratio calculations in formulation |
|
Storage & Shelf Life |
Follow guidelines in SDS to prevent moisture absorption and crystallisation |
Core Product Characteristics
Rigid Bicyclic Molecular Architecture:
The bridged-ring structure imparts exceptional crosslink density, elevated glass transition temperature, and superior retention of mechanical rigidity at elevated operating temperatures.
Low Initial Viscosity:
Maintains favorable fluid dynamics at processing temperatures, enabling high inorganic filler loading (such as silica or alumina) without compromising mold flow or fiber impregnation.
Controlled Exothermic Profile:
Designed to provide a balanced reactivity window, reducing peak exotherm risks during the casting of thick-section electrical components and large composite parts.
Exceptional Dielectric Retention:
Contributes to low dielectric constants and minimal dissipation factors, preserving electrical insulation integrity under continuous thermal and electrical stress.
Integrated Chemical Synthesis & Production: Complete manufacturing oversight from raw material processing to final liquid anhydride refining ensures consistent batch-to-batch reproducibility.
Rigorous Analytical Quality Control: Every production lot is verified using advanced instrumentation, including gas chromatography (GC) for purity, automatic titration for free acid value, and calibrated viscometry.
Complete Batch Traceability: Comprehensive retention samples and batch-specific testing protocols allow full backward and forward tracking from finished packaging to raw chemical inputs.
Global Export Logistics & Compliance: Experienced in hazardous chemical handling, secure industrial packaging (drums, IBC tanks, or specialized containers), and international shipping documentation compliance (SDS, transport classifications, and customs clearances).
Dedicated Technical Support: Access to experienced formulation and application specialists who assist with stoichiometric calculations, cure cycle optimization, and troubleshooting complex epoxy systems.
Core Application Areas
Electrical Insulation and Epoxy Casting
MNA-cured epoxy systems are utilized in electrical components requiring strict dielectric performance, high glass transition temperature, and thermal stability.
• Target Uses: High-voltage insulators, switchgear components, transformers, and electrical castings.
• Evaluation Focus: Dielectric strength, volume resistivity, thermal ageing, moisture resistance, and dimensional stability under operational heat.
Epoxy Potting and Encapsulation
Used in protective potting compounds for sensitive electronic and electrical assemblies.
• Processing Factors: Viscosity, working time, filler loading compatibility, and exothermic heat management during mass curing. Component geometry and cure profiles should be assessed to prevent thermal stress or cracking in thick sections.
Advanced Composites and Lamination
Selected for epoxy composite matrices, filament winding, and high-temperature laminates.
• Performance Factors: Resin viscosity, fibre wet-out kinetics, gel time, and mechanical retention at elevated service temperatures.
Speciality Resin Intermediates
Acts as a reactive building block in specific alkyd and polyester resin modifications.
Anhydride curing agents are hygroscopic. Improper storage can lead to atmospheric moisture absorption, causing the anhydride to hydrolyze into free dicarboxylic acid, which alters stoichiometry, increases acid value, and impacts cure kinetics.
Container Integrity: Keep containers tightly sealed with inert gas blanketing if necessary when stored for extended periods.
Environmental Control: Store in a cool, dry, well-ventilated area away from direct sunlight, moisture, and incompatible bases or amines.
Handling Precautions: Use appropriate personal protective equipment (PPE) to avoid skin contact and inhalation of vapors. Review the Safety Data Sheet (SDS) for detailed handling and emergency protocols.
FAQ
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