PA66 Huafeng EP158 Resin
PA66 Huafeng EP158 Resin
Material Introduction: PA66 Huafeng EP158 (Zhejiang Huafeng) is an unreinforced general‑purpose injection‑molding PA66 resin. Its core advantages include favorable mechanical strength, excellent toughness and impact resistance, wear resistance, self‑lubricating property and low‑temperature performance, with UL94 V‑2 flame‑retardant rating. Its inherent water‑absorption characteristic affects dimensional stability and partial properties; strict drying is required prior to processing.
Main Applications
Electronic‑electrical industry: Electronic‑electrical components, coil bobbins, switch housings and other parts.
Automotive industry: Automotive inner parts and structural components.
Mechanical parts / Industrial fittings: Machinery parts, instrument components, railway fittings, home‑appliance parts, communication‑device components, oil pipes, oil tanks and precision engineering articles.
Film & packaging: Packaging‑purpose film products.
Other fields: Medical‑device parts, sports goods, daily‑use articles, monofilament and short‑fiber spinning.
Performance Parameters
| Performance Category | Test Condition / Standard | Unit | Typical Value | Remarks & Interpretation |
|---|---|---|---|---|
| Physical Properties | ||||
| Density | ISO 1183 | g/cm³ | 1.13 | Unreinforced PA66 grade |
| Relative Viscosity | GB | ‑ | 2.68 ± 0.05 | Medium‑viscosity grade |
| Melt Flow Rate (MFR) | 275℃/2.16 kg, ISO 1133 | g/10min | 10.5 | ‑ |
| Mechanical Properties | ||||
| Tensile Strength | ISO 527‑2 | MPa | 71.8 | ‑ |
| Elongation at Break | ISO 527‑2 | % | 70.3 | High‑toughness feature |
| Flexural Strength | ISO 178 | MPa | 81.4 | ‑ |
| Flexural Modulus | ISO 178 | MPa | 1424 | ‑ |
| Izod Un‑notched Impact Strength | ISO 180 | kJ/m² | No Break | ‑ |
| Izod Notched Impact Strength | ISO 180 | kJ/m² | 4.6 | ‑ |
| Thermal Properties | ||||
| HDT @1.8 MPa | ISO 75‑2/A | °C | 64.5 | ‑ |
| Flammability | ||||
| UL94 Rating | ‑ | ‑ | V‑2 | ‑ |
Injection Molding Parameters
| Processing Item | Recommended Range / Condition | Notes & Explanations |
|---|---|---|
| Drying Treatment | Hot‑air drying:80‑85 ℃ for 4‑6 h; extend drying time or adopt vacuum drying under high‑humidity conditions; target moisture content＜0.2% | Critical operation. PA66 readily absorbs moisture. Excess moisture triggers hydrolysis during processing, bringing bubbles, silver streaks and severe mechanical‑property deterioration. Use immediately after drying or seal and keep warm properly. |
| Melt Temperature | 260‑290 ℃ | Fine‑tune according to equipment and part geometry. Avoid temperature＞300 ℃ or long residence‑time to prevent degradation and discoloration. |
| Mold Temperature | 60‑80 ℃ | Proper mold temperature delivers good crystallinity, surface gloss and mechanical performance. |
| Injection Pressure | 60‑100 MPa, adjust per product & mold design | Adjust according to product structure and wall thickness. |
| Injection Speed | Medium‑high speed | Relatively fast speed facilitates filling and avoids short‑shot or weld‑line defects caused by rapid cooling. |
| Back Pressure | 0.5‑1.0 MPa (5‑10 kgf/cm²) | Moderate back‑pressure homogenizes melt and improves venting; excessive back‑pressure reduces plasticizing efficiency and may induce overheating. |
| Screw Speed | Medium speed (50‑120 rpm) | Avoid excessive shear‑heat generation. |
| Runner & Gate | Runner and gate shall not be undersized | Nylon solidifies rapidly; sufficiently large gate dimension guarantees smooth filling. |
Disclaimer: All above data is for reference only.
