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Pultrusion/
Overview
ALITA 9900 Aramid Core Pultrusion Resin
Category：PultrusionCode：ALITA 9900
Overview
ALITA 9900(/G) is a bisphenol-A epoxy vinyl ester resin tailored precisely for fast pultrusion molding. With moderate viscosity and high reactivity, it significantly boosts pultrusion line speed, improves FRP surface gloss, limits shrinkage, and minimizes internal micro-cracks. The resulting pultruded products offer a dual advantage of excellent corrosion resistance, mechanical properties, and electrical performance.
- Aramid Fiber Specialization: This customized grade is specifically formulated and highly suitable for fast pultrusion of aramid fiber core materials.
- High Heat Resistance: The heat distortion temperature (HDT) of the neat resin casting reaches over 130°C.
- (/G) Variant: Grades with 'G' are opaque and designed to provide an even smoother surface on pultruded products.
Specifications
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Appearance | -- | Yellow transparent liquid | GB/T 7193.6.1.1 |
| Viscosity (25°C) | mPa·s | 250 - 450 | GB/T 7193.4.1 |
| Gel Time (25°C) | min | 10.0 - 20.0 | GB/T 7193.4.6 |
| Acid Value | mgKOH/g | 8.0 - 20.0 | GB/T 2895 |
Note: Gel time tested with: Promoter Nap-Co (Co:6%) at 0.5%; Curing agent AKZO LPT at 1.5%.
Properties
| Property | Unit | Value | Test Method |
|---|---|---|---|
| Tensile Strength | MPa | 72.0 | GB/T 2567.5.1 |
| Tensile Modulus | MPa | 3500 | GB/T 2567.5.1 |
| Elongation at Break | % | 2.0 - 4.0 | GB/T 2567.5.1 |
| Flexural Strength | MPa | 130 | GB/T 2567.5.3 |
| Flexural Modulus | MPa | 3600 | GB/T 2567.5.3 |
| Impact Toughness | KJ/m² | 8.8 | GB/T 2567.5.4 |
| HDT | °C | 135 | GB/T 1634 |
| Barcol Hardness | -- | 40 | GB/T 3854 |
Note: 1) Casting preparation per GB/T 8237-2005. Formulation: Promoter Nap-Co (Co:6%) 0.5%; AKZO LPT 1.5%. 2) Post-cure schedule: RT×24h + 120°C×2h.
Usage Instructions
| Season | Ratio (Resin / PERKADOX CH-50 / TRIGONOX C) |
|---|---|
| Summer | 100 / 0.5–1.0 / 1.0–2.0 |
| Winter | 100 / 1.0–2.0 / 1.0–2.0 |
Advice: Pultrusion curing agents rely mostly on medium/high-temperature compound systems, combined with BPO and TBPB. Formulations must be adjusted on-site according to mold temperature, pultrusion speed, product thickness/diameter, and seasonal temperatures.
Storage & Handling
- Packaging: Clean 20kg/200kg drums or 1000kg IBCs.
- Storage: Cool, dry, ventilated environment below 25°C. Shelf life is 9 months. Periodically opening the lid and stirring can suitably extend shelf life. Promoters and initiators must be stored separately.
- Transport: Must comply with hazardous chemical regulations. Cold chain recommended from May to October.
Derivative Grades & Versatility
The optical cable core FRP pultrusion series corresponds to various diameters, fiber types, and special requirement scenarios:
- ALITA 8600(/G)
- ALITA 8700(/G)
- ALITA 8800(/G)
- ALITA 8900(/G)
- ALITA 9900(/G) (Customized grade tailored specifically for aramid fibers)
For TDS and MSDS of specific grades, please contact us to request.