1. Physical properties
Specific gravity 1.4g/cm
Flammability does not support combustion
Opacity less than 0.1
Vicat softening point 80℃
Water absorption (23℃) 0.12 (24h)
2. Mechanical properties
Tensile strength 52MPa (7.500lb /in2)
Pressure strength 66MPa (9.600lb/in2)
Impact 5.4J (4ft/lb)
Bending elastic modulus 2.750MPa (4 ×105lb/in2)
Birno hardness 12 —15
3. Electrical properties
Penetration voltage 2. 000 V/mil (at 10mil thickness)
Volume voltage 1015Ω
Surface resistance 1013 to 1014Ω
Power electronics 0.02 (106 cycles)
Constant 3.0—3.2 (106 cycles )
4. Heat transfer
Thermal linear expansion coefficient 0.07mm/m ·K
Thermal conductivity 3.5×10-4cal/s·cm·k
Specific heat 0.25cal/g·k Project standards require tensile yield strength ≥40MPa Vicat softening temperature ≥90℃ Flat test without cracking Drop weight impact test ≤10 Appearance The inner and outer walls are smooth and flat, no cracks are allowed Bubble specifications and exterior wall thickness comply with GB/T5836.1-2006. Wall thickness deviation of the same section is ≤14. Longitudinal retraction rate is ≤5. ○Patented pipe fittings - advantages of leak-proof embedded pipe connections
1. Leak-proof The grooves are embedded in the concrete when pouring the floor slab, so that no gaps will be formed, thereby avoiding water leakage;
2. The anti-seepage corners form a posture that hugs the pipe wall, which can prevent uneven application of glue from causing damage to the pipe. Water leaks outward;
3. Anti-slip nail holes can accurately fix the product at the expected position and will not move with construction collisions, thus ensuring the beauty of future pipe installations;
4. The dust cover prevents concrete from entering the direct inner wall of the pre-buried pipe, thereby avoiding difficulties in installing pipes. It can also prevent debris from entering the pipes installed first and causing pipe blockage in the future.