【 WhatsApp】
+86-21-6420 0566
| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
Features
High transparency, high gloss, moisture resistance, white resistance, water resistance, good color stability, moderate hardness, good flexibility
Applications:
Seamstress.
Epoxy curing agents are essential components that react with epoxy resins to form cross-linked, thermosetting polymers. The choice of curing agent significantly impacts the final properties of the cured material, including mechanical strength, thermal stability, and chemical resistance.
| Type | Examples | Reaction Mechanism | Curing Temp. | Key Characteristics |
|---|---|---|---|---|
| Amines | DETA, TETA, IPDA, Anhydrous amines | Nucleophilic addition | RT – 120°C | Fast cure, high strength, but brittle |
| Polyamides | Versamid, Ancamide | Polycondensation | RT – 100°C | Flexible, good adhesion, low toxicity |
| Anhydrides | Phthalic, Hexahydrophthalic | Ring-opening polymerization | 100 – 200°C | High Tg, low exotherm, long pot life |
| Phenolics | Novolacs, Resoles | Condensation | 150 – 200°C | High thermal/chemical resistance |
| Catalytic | BF3. Imidazoles | Homopolymerization | 50 – 150°C | Latent curing, controlled reactions |
| Factor | Considerations |
|---|---|
| Curing Temperature | Room temp (amines) vs. elevated temp (anhydrides) for optimal crosslinking. |
| Pot Life | Amines (short) vs. anhydrides (long) – affects processing time. |
| Mechanical Props. | Amines (rigid) vs. polyamides (flexible) – choose based on application needs. |
| Chemical Resistance | Phenolics/anhydrides excel in harsh environments (acids, solvents). |
| Toxicity | Amines (irritating) vs. polyamides (safer) – impacts handling safety. |
| Curing Agent | Typical Applications |
|---|---|
| Aliphatic Amines | Fast-curing adhesives, coatings, and small castings (RT cure). |
| Aromatic Amines | Aerospace composites, high-Tg electrical encapsulants (elevated temp cure). |
| Anhydrides | LED encapsulation, PCB laminates, and high-performance composites. |
| Polyamides | Marine coatings, corrosion-resistant paints, and flexible adhesives. |
| Dicyandiamide (DICY) | Powder coatings, one-component adhesives (latent curing at >150°C). |
| Curing Agent | Advantages | Limitations |
|---|---|---|
| Amines | Fast cure, high strength | Brittleness, moisture sensitivity |
| Anhydrides | Low exotherm, high Tg | Requires heat, slow cure |
| Polyamides | Toughness, good adhesion | Lower chemical resistance |
| Phenolics | Extreme thermal stability | Dark color, high cure temp |
| Catalytic | Precise control, latent curing | Limited to specific formulations |
| Parameter | Amines | Anhydrides | Polyamides |
|---|---|---|---|
| Skin Irritation | High (wear PPE) | Moderate | Low |
| VOC Emissions | Low to moderate | Low | Low |
| Storage | Dry, cool, sealed | Dry (hydrolysis risk) | Stable at RT |
| Property | Amines | Anhydrides | Polyamides |
|---|---|---|---|
| Cure Speed | Fast | Slow | Moderate |
| Flexibility | Low | Medium | High |
| Max. Service Temp. | 120°C | 200°C | 150°C |
| Cost | Low | Medium | High |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
For help with solutions customized to your business needs, contact Export Director now.
With 30+ years of experience and We firmly believe that product quality is the basis of cooperation.
Chat Now
TEl
+86-21-6420 0566
