TR-902 is an ortho benzene type unsaturated polyester resin with high reactivity, medium viscosity, and good thickening stability. Its products have good heat resistance and excellent comprehensive mechanical properties. Used for producing SMC/BMC products such as electrical, industrial equipment, and automotive components.
2.Technical specifications of liquid resin (25 ℃)
Item
Test method
Performance index
Result
Apperance
GB/T 8237 2005
Yellow transparent liquid
Yellow transparent liquid
Acid value (mgKOH/g)
GB/T 2895 2008
15.0-20.0
15.7
Viscosity (CP · S)
GB/T 7193 2008
1200-1800
1500
SPI-GT (min)
GT/T 7193 2008
6.0-10.0
6.6
SPI-CT (min)
GT/T 7193 2008
7.5-12.5
8.2
SPI-PET (℃)
GB/T 7193 2008
220.0-245.0
229.5
Solid content (%)
GB/T 7193 2008
63.5-66.5
66.4
Color number
GB/T 605
≤140
70
Conclusion
PASS
3.Physical properties of the casting body (for reference only)
Item
Unit
Measured value
Test method
Tensile strength
MPa
65
GB/T 2568
Tensile modulus of elasticity
Mpa
3000
GB/T 2568
Elongation
%
2.5
GB/T 2568
Bending strength
MPa
110
GB/T 2570
Flexural modulus
MPa
3300
GB/T 2570
Heat distortion temperature
℃
122
GB/T 1634
Barcol hardness
---
47
GB/T 3854
Note:
1) The production method of the casting body shall be in accordance with GB/T 8237, and the curing system shall be 0.6% Co Naph1% AKZOM-501%;
2) Post treatment of casting body: room temperature x24 hours 60Cx3 hours+110Cx2 hours.
4、 Precautions
During transportation, it should comply with the safety regulations for the transportation of hazardous chemicals in Chapter 5 of the State Council's Regulations on the Safety Management of Hazardous Chemicals. The product should be stored in a cool place below 25C, avoiding ignition, isolating heat sources, and sealed to prevent moisture intrusion and monomer evaporation. The shelf life for storage below 25C is 3 months.
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