PA6 BKV40---为了提高 PA6 的机械特性,经常加入各种各样的改性剂。玻璃就是***常见的添加剂,有时 为了提高抗冲击性还加入合成橡胶,如 EPDM 和 SBR 等。对于没有添加剂的产品,PA6 的收缩率在 1%到 1.5% 之间。加入玻璃纤维添加剂可以使收缩率降低到 0.3%(但和流程相垂直的方向还要稍高一些)。成型组装的收缩率主要受材料结晶度和吸湿性影响。
Unit system test method for physical properties after drying and adjustment
proportion
-- 1.46 -- g/cm³ ASTM D792
23°C 1.46 -- g/cm³ ISO 1183
Shrinkage: ISO 2577
Vertical flow direction: 280 ° C, 3.00 mm 1 0.85 --% ISO 2577
Vertical flow direction: 120 ° C, 4 hours, 3.00 mm2 0.070 --% ISO 2577
Flow direction: 280 ° C, 3.00 mm3 0.16 --% ISO 2577
Flow direction: 120 ° C, 4 hours, 3.00 mm 4 0.030 --% ISO 2577
Water absorption ISO 62
Saturated, 23 ° C 6.0 --% ISO 62
Balanced, 23 ° C, 50% RH 1.8 --% ISO 62
Mechanical properties - unit system test method after drying and adjustment
Tensile modulus
23°C 5 11800 7400 MPa ASTM D638
23°C 11900 7800 MPa ISO 527-2/1
Tensile strength
Fracture, 23 ° C 200 120 MPa ASTM D638
Fracture, 23 ° C 195 130 MPa ISO 527-2 / 5
elongation
Fracture, 23 ° C 3.0% 4.0% ASTM D638
Fracture, 23 ° C 3.0 6.0% ISO 527-2 / 5
Bending modulus
23°C 10800 6800 MPa ASTM D790
23°C 6 11200 7300 MPa ISO 178/A
bending strength
23°C 330 200 MPa ASTM D790
3.5% strain, 23 ° C 305 170 MPa ISO 178 / A
23°C 7 310 200 MPa ISO 178/A
Flexural Strain at Flexural Strength 8(23°C) 4.0 5.0 % ISO 178/A