PA6 BASF B3S Resin
PA6 BASF B3S Resin
Material Introduction: PA6 BASF B3S is a widely‑used general‑purpose PA6 resin. It features high crystallinity, good flowability and short molding cycle, together with favorable thermal performance, excellent electrical properties and good chemical resistance. It is highly suitable for injection molding of thin‑wall articles.
Main Applications
Thin‑wall components: Housings, accessories, handles, small parts and fastener clips.
Electronic & electrical: Electrical insulating parts.
Automotive parts: Bearings and other components.
Film products: Nylon films.
Performance Parameters
| Performance Category | Test Condition | Unit | Value (Dry / Conditioned) | Remarks & Interpretation |
|---|---|---|---|---|
| Physical Properties | ||||
| Density | 23℃ | g/cm³ | 1.13 | General‑purpose unreinforced PA6 |
| Saturated Water Absorption (23℃) | ‑ | % | 9.0‑10.0 | ‑ |
| Equilibrium Water Absorption (23℃,50%RH) | ‑ | % | 2.6‑3.4 | ‑ |
| Molding Shrinkage‑Flow Direction | ‑ | % | 0.87 | ‑ |
| Molding Shrinkage‑Cross Direction | ‑ | % | 1.0 | ‑ |
| Mechanical Properties | ||||
| Tensile Modulus | ‑ | MPa | 3500 / 1200 | Dry / conditioned state |
| Tensile Stress (Yield) | ‑ | MPa | 90.0 / 45.0 | Dry / conditioned state |
| Tensile Strain (Yield) | ‑ | % | 4.0 / 20 | Dry / conditioned state |
| Flexural Modulus | ‑ | MPa | 3000 | ‑ |
| Charpy Notched Impact Strength | 23℃ | kJ/m² | 4.0 / 50 | Dry / conditioned state |
| Ball Pressure Hardness | ‑ | MPa | 160 / 70 | Dry / conditioned state |
| Thermal Properties | ||||
| Melting Point | ‑ | ℃ | 220 | ‑ |
| HDT (1.8 MPa, un‑annealed) | ‑ | ℃ | 65.0 | ‑ |
| HDT (0.45 MPa, un‑annealed) | ‑ | ℃ | 180 | ‑ |
| Coefficient of Linear Thermal Expansion‑Flow (23‑80℃) | ‑ | cm/cm/℃ | 7.0E‑5 ~ 1.0E‑4 | ‑ |
| Electrical Properties | ||||
| Volume Resistivity | ‑ | ohm·cm | 1.0E+15 / 1.0E+12 | Dry / conditioned state |
| Relative Permittivity (1 MHz) | ‑ | ‑ | 3.30 / 7.00 | Dry / conditioned state |
| CTI (Solution A) | ‑ | V | 600 | ‑ |
| Flammability | ||||
| UL94 Rating (1.60 mm) | ‑ | ‑ | V‑2 | ‑ |
Injection Molding Parameters
| Processing Item | Recommended Range / Condition | Notes & Explanations |
|---|---|---|
| Drying Treatment | Hot‑air drying at 80.0℃ for at least 4.0 h; if exposed to air＞8 h, vacuum‑dry at 105℃ for ≥8 h. | Critical operation. Keep moisture ≤0.15% to avoid hydrolysis, bubbles, silver streaks and mechanical‑property loss. Use immediately after drying or seal properly for heat preservation. |
| Melt Temperature | 250‑270℃ (melt temperature); barrel temp reference: rear 240℃ / middle 250℃ / front 260℃ / nozzle 260℃. | Avoid temperature＞300℃ and long‑time residence to prevent material degradation. |
| Mold Temperature | 40.0‑60.0℃; 80‑90℃ may be adopted for structural parts or high‑crystallinity requirements. | Mold temperature greatly affects crystallinity and mechanical performance. Higher mold temperature improves crystallinity, stiffness and strength yet may reduce toughness. |
| Injection Pressure | 750‑1250 bar (depends on product & mold design). | Adjust according to product and mold structure. |
| Injection Speed | High speed. | Fast filling benefits thin‑wall part molding. |
| Runner & Gate | PA6 solidifies rapidly, gate location is critical. Gate bore ≥0.5*t (t = wall thickness of molded part). For hot‑runner system, gate dimension shall be smaller than conventional runner. Minimum diameter for submarine gate ≥0.75 mm. | Gate design is vital for cavity filling. |
| Screw Speed | ＜300 mm/sec. | Avoid excessive shear force. |
| Back Pressure | ‑ | ‑ |
| Shutdown Notice | Purge barrel with PE / PP of good thermal stability after production or shutdown to prevent carbonized nylon residue. Turn off heating system for long‑term shutdown. | ‑ |
Disclaimer: All above data is for reference only.
