PC HN-1064I---The creep resistance of PC is better than that of nylon and POM. This is an important sign of its good dimensional stability. Stress cracking: (PC products are prone to stress cracking) the internal stress of plastics is mainly caused by the interaction between macromolecular chains forced to orientation. Residual stress and stress cracking of PC products are prominent problems. When the flexural strength of PC is flexed and placed for a certain time, the micro tearing will occur when the flexural stress exceeds its limit value. When the molecular weight of PC is more than 24000, the stress is 35 MPa, and when the molecular weight is 22000, it is about 20 MPa.
Hn-1064i physical property table
Test method of physical performance rating unit
Specific gravity: 1.20 g / cm ASTM D792
Melt flow rate (250 ℃ / 10.0kg) 20 g / 10min ASTM d1238
Rockwell hardness (r scale) 120 ASTM d785
Mechanical properties - rating units - Test methods
Tensile strength: 58.6 MPa ASTM D638
Bending modulus 2070 MPa ASTM D790
Bending strength: 84.1 MPa ASTM D790
Impact strength of notched beam (d2683.56m)
Thermal performance rating unit test method
Hot deformation temperature (1.8MPa, UN annealed) 131 ℃ ASTM D648
Vicat softening temperature 144 ℃ ISO 306 / b
Flammability rating unit test method
UL flame retardant grade (0.750mm) V-2 UL94
UL94
(1.50mm) V-0
(3.00mm) V-0