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SMC/BMC Resin/
Overview
ALITA 1599 Isophthalic/NPG Type Unsaturated Polyester Resin (High Performance SMC/BMC)
Category：SMC/BMC ResinCode：ALITA 1599
Applications
ALITA 1599 is a high-performance unsaturated polyester resin synthesized from Isophthalic acid and Neopentyl Glycol (NPG), specifically developed for high-standard SMC/BMC processes.
- Core Features: Features high reactivity and excellent thickening characteristics. Compared to ALITA 1598, it has a lower liquid viscosity (1000-1700 mPa.s), making it easier for fiber wetting.
- Physical Advantages: Products possess very high mechanical strength, superior electrical properties, as well as outstanding heat resistance (HDT 130℃) and chemical corrosion resistance.
- Application Fields: Widely used in BMC injection molding and SMC sheet compression molding, particularly suitable for:
- High-Performance Electrical Components: Such as high-voltage insulators, circuit breaker housings.
- Industrial Equipment: Industrial parts requiring long-term contact with chemical media or operation in high-temperature environments.
Specifications
| Inspection Items | Indicator Range | Unit | Test Method |
|---|---|---|---|
| Appearance | Light yellow transparent liquid | -- | -- |
| Acid Value | 10 - 16 | mgKOH/g | GB/T 2895-2008 |
| Viscosity (25℃) | 1000 - 1700 | mPa.s | GB/T 7193-2008 |
| Solid Content | 60 - 66 | % | GB/T 7193-2008 |
| Thermal Stability (80℃) | ≥ 24 | h | GB/T 7193-2008 |
Note: SPI curing testing uses 2% Alita BPO-50F curing agent.
Properties
| Inspection Items | Typical Value | Unit | Test Method |
|---|---|---|---|
| Barcol Hardness | 50 | -- | GB/T 3854-2005 |
| HDT | 130 | ℃ | GB/T 1634-2004 |
| Elongation at Break | 2.5 | % | GB/T 2567-2008 |
| Tensile Strength | 66 | MPa | GB/T 2567-2008 |
| Tensile Modulus | 3400 | MPa | GB/T 2567-2008 |
| Flexural Strength | 118 | MPa | GB/T 2567-2008 |
| Flexural Modulus | 4000 | MPa | GB/T 2567-2008 |
Experimental Notes:
1. Casting method follows GB/T 8237.
2. Curing system: 0.6% Cobalt Naphthenate 1% + Nouryon M-50 1%.
3. Post-curing scheme: RT 24h + 60℃ 3h + 110℃ 2h.
Storage & Handling
- Personal Protection: Resin components can be harmful; avoid contact with skin and eyes. Wear necessary protective equipment and clothing during operation.
- Temperature Control: Strongly recommended to store materials in a stable environment below 25℃ (77℉).
- Environment: Keep away from direct sunlight, steam pipes, or other heat sources. Outdoor storage is strictly prohibited to prevent moisture contamination.
- Sealing Management: Keep containers sealed to prevent moisture absorption and loss of monomer (styrene) through evaporation.
- Inventory Turnover: Follow the "FIFO" principle.