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Pultrusion Resin/
Overview
ALITA 210 Orthophthalic UPR (Pultrusion Process Special)
Category：Pultrusion ResinCode：ALITA 210
Applications
ALITA 210 is an unsaturated polyester resin based on phthalic acid, featuring low viscosity and medium reactivity.
- Process Characteristics: Features low viscosity, good wetting property, and fast curing, making it highly suitable for pultrusion molding processes.
- Physical Advantages: Products reinforced with glass fiber exhibit good mechanical strength and high elongation.
- Versatility: This resin is highly versatile and is an ideal choice for manufacturing various pultruded FRP products.
Specifications
| Inspection Items | Specification Range | Unit | Test Method |
|---|---|---|---|
| Appearance | Light yellow to yellow transparent liquid | -- | -- |
| Acid Value | 16 - 27 | mgKOH/g | GB/T 2895-2008 |
| Viscosity (25℃) | 0.5 - 0.6 | Pa·s | GB/T 7193-2008 |
| Solid Content | 60 - 65 | % | GB/T 7193-2008 |
| SPI-GT (82.2℃) | 5.0 - 10.0 | min | ALITA-D-DB001 |
Note: SPI curing performance test uses 2% Enox BPO-50F curing agent.
Properties
| Inspection Items | Typical Value | Unit | Test Method |
|---|---|---|---|
| Barcol Hardness | ≥ 45 | -- | GB/T 3854-2005 |
| Heat Distortion Temp (HDT) | 75 | ℃ | GB/T 1634-2004 |
| Elongation at Break | 2.5 | % | GB/T 2567-2008 |
| Tensile Strength | 68 | MPa | GB/T 2567-2008 |
| Tensile Modulus | 3150 | MPa | GB/T 2567-2008 |
| Flexural Strength | 125 | MPa | GB/T 2567-2008 |
| Flexural Modulus | 3750 | MPa | GB/T 2567-2008 |
Experimental Notes:
1. Casting method follows GB/T 8237-2005.
2. Curing system: 0.6% Cobalt Naphthenate accelerator 1.0% + Enox BPO-50F curing agent 1.0%.
3. Post-treatment: Room temp 24h + 60℃ 3h + 110℃ 2h.
Usage Instructions
1. Composition: ALITA 210 resin does not contain wax, accelerators, or thixotropic agents.
2. Recommended Pultrusion Formulation: Suggest using BPO curing agent (0.5-2.0%) or TBPB curing agent (0.5-1.5%). The actual ratio should be dynamically adjusted based on equipment, product specifications, process temperature, and pultrusion speed.
3. Shrinkage Control: When manufacturing thick-walled products, it is recommended to add low-shrinkage additives to prevent cracking.
4. Selection Guidance:
- For higher heat and seawater resistance, ALITA 239 (Isophthalic) is recommended.
- For superior corrosion resistance, ALITA 901 (Epoxy Vinyl Ester) is recommended.
Storage & Handling
- Safety: Avoid contact with skin and eyes; wear necessary personal protective equipment during operation.
- Storage: Strongly recommended to store below 25℃. Outdoor storage is strictly prohibited; keep away from direct sunlight and heat sources (e.g., steam pipes).
- Management: Keep sealed to prevent moisture ingress and styrene monomer loss. Follow the "First-In, First-Out" (FIFO) principle.