Tianrun TR-128APT is an unsaturated polyester resin (modified) mainly composed of phthalic anhydride and standard diols, which has been dissolved in styrene. Made by adding white carbon black, dispersant, defoamer, metal cobalt, etc. through high-speed dispersion and deep processing, it has low viscosity, high thixotropy, no flow in the vertical plane, and excellent mechanical properties. Fiberglass products suitable for spray forming processes.
2、 Technical specifications of liquid resin (25 ℃):
Item
Unit
Test indicators
Test method
Appearance
---
Tiny red band thixotropic liquid
GB/T8237.6.1.1
Viscosity
CPa·s
350-650
GB/T 7193-2008
Acid value
mgKOH/g
14-24
GB/T 2895-2008
Gel time
Min（25℃）
18-25
GB/T 7193-2008
Stability
H（80℃）
≥24
GB/T 7193-2008
THIXOTROPIC INDEX
2-4
Note: In a 25 ℃ water bath, add 1ml of methyl ethyl ketone peroxide solution and 1ml of colorless accelerator T-8A solution to 100g of resin
3、 Physical properties of the casting body (for reference only):
Item
Unit
Test performance
Test method
Casting body
Tensile strength
MPa
≥55
GB/T2567-2008
Tensile modulus of elasticity
MPa
≥3100
GB/T2567-2008
Elongation at break
%
≥2.5
GB/T2567-2008
Bending strength
MPa
≥100
GB/T2567-2008
Flexural modulus
MPa
≥3500
GB/T2567-2008
Heat distortion temperature
℃
≥75
GB/T1634-2004
Barcol hardness
---
≥45
GB/T3854-2005
Note: (1) The casting method shall be executed according to GB/T8237-2005; Temperature 25 ℃, curing system: accelerator RCA 1.0%, curing agent M-50 1.5%.
(2) Post casting curing treatment: room temperature × 24 hours+60 ℃ × 3 hours+80 ℃ × 2 hours;
4、 Precautions:
1. Before use, please stir evenly in the packaging bucket, or pour out all the resin in the packaging bucket and stir evenly before use.
2. During transportation, it should comply with Chapter 5 of the State Council's "Regulations on the Safety Management of Chemical Dangerous Goods" regarding the transportation and loading and unloading of chemical dangerous goods. The product should be stored in a cool place below 25 ℃, avoiding ignition and isolating heat sources. The shelf life for storage below 25 ℃ is 3 months.
5、 Regarding Product Safety Data (MSDS):
Before using this product, please read the MSDS carefully.
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