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Pultrusion Resin/
Overview
ALITA 7017 Orthophthalic UPR (High Speed Pultrusion / High Heat Resistant Type)
Category：Pultrusion ResinCode：ALITA 7017
Applications
ALITA 7017 is an unsaturated polyester resin based on phthalic anhydride, specifically developed for high-performance pultrusion and extrusion processes.
- Process Features: Exhibits medium viscosity and high reactivity. Its superior wetting properties ensure thorough fiber impregnation, and fast curing capability significantly boosts production efficiency.
- Physical Advantages:
- Enhanced Heat Distortion Temp (HDT): Reaches 90℃, offering superior high-temperature performance compared to related products in the series.
- High Rigidity & Hardness: Features an extremely high elastic modulus and hardness, resulting in products with excellent dimensional stability.
- Balanced Mechanics: Maintains high hardness while ensuring good toughness and mechanical strength.
- Application Areas: Suitable for various structural profiles, rods, and high-performance composite components produced via high-speed pultrusion processes.
Specifications
| Inspection Items | Specification Range | Unit | Test Method |
|---|---|---|---|
| Appearance | Light yellow transparent liquid | -- | -- |
| Acid Value | 16 - 27 | mgKOH/g | GB/T 2895-2008 |
| Viscosity (25℃) | 0.5 - 0.7 | Pa·s | GB/T 7193-2008 |
| Solid Content | 60 - 65 | % | GB/T 7193-2008 |
| Thermal Stability (80℃) | ≥ 24 | h | GB/T 7193-2008 |
| SPI-GT (82.2℃) | 5 - 10 | min | GB/T 7193-2008 |
Note: SPI curing performance test uses 2% ALITA BPO-50F curing agent.
Properties
| Inspection Items | Typical Value | Unit | Test Method |
|---|---|---|---|
| Barcol Hardness | ≥ 42 | -- | GB/T 3854-2005 |
| Heat Distortion Temp (HDT) | 90 | ℃ | GB/T 1634-2004 |
| Elongation at Break | 2.97 | % | GB/T 2567-2008 |
| Tensile Strength | 62 | MPa | GB/T 2567-2008 |
| Tensile Modulus | 3400 | MPa | GB/T 2567-2008 |
| Flexural Strength | 128 | MPa | GB/T 2567-2008 |
| Flexural Modulus | 4200 | MPa | GB/T 2567-2008 |
Experimental Notes: Cast body production follows Q/320411 BES002-2014.
Reference Formulation
1. Composition: ALITA 7017 resin does not contain wax, accelerators, or thixotropic agents.
2. Recommended Curing System:
- BPO Curing Agent: 0.5 - 2.0%
- TBPB Curing Agent: 0.5 - 1.5%
- Actual ratios should be comprehensively adjusted based on production equipment, product wall thickness, mold temperature, and line speed.
3. Shrinkage Control: When manufacturing thick-walled profiles, it is recommended to add low-shrinkage additives to reduce internal stress and prevent cracking or dimensional deformation.
4. Selection Guidance:
- For better heat or seawater resistance, Isophthalic ALITA 239 is recommended.
- For extremely high levels of chemical corrosion resistance, Epoxy Vinyl Ester ALITA 901 is recommended.
Storage & Handling
- Protection Requirements: Avoid skin and eye contact; must wear protective clothing, chemical-resistant gloves, and goggles during operation.
- Environmental Control: Strongly recommended to store in a cool, dry place below 25℃. Keep away from direct sunlight, steam pipes, open flames, and all heat sources.
- Management: Outdoor storage is strictly prohibited to prevent moisture pollution; keep containers sealed to prevent styrene monomer loss and property changes. Follow the "First-In, First-Out" principle.