Tianrun TR-501-T70 is an unsaturated polyester resin (modified) synthesized from phthalic anhydride as the main raw material, which has been dissolved in styrene and added with an accelerator. It has the characteristics of good and fast infiltration of glass fiber, low heat release, fast curing, and good defoaming performance. The product has good transparency, low shrinkage, and good toughness. This resin is recommended for vacuum induction or vacuum assisted RTM processes, especially suitable for automotive components, cabin covers, transparent carbon fiber products, etc. There are many gel time options.
2、 Technical specifications of liquid resin (25 ℃):
Item
Unit
Test indicators
Test method
Apperance
---
Transparent reddish liquid
GB/T8237.6.1.1
Viscosity
Pa·s
0.15-0.20
GB/T 7193-2008
Acid value
mgKOH/g
15-25
GB/T 2895-2008
Gel time
Min（25℃）
65-75
GB/T 7193-2008
Stability
H（80℃）
≥24
GB/T 7193-2008
Note: 25 ℃ water bath, add 1.5gM50 to 100g resin
3、 Physical properties of the casting body (for reference only):
Item
Unit
Test performance
Test method
Casting body
Tensile strength
MPa
≥70
GB/T2567-2008
Tensile modulus of elasticity
MPa
≥3500
GB/T2567-2008
Elongation at break
%
≥2.4
GB/T2567-2008
Bending strength
MPa
≥160
GB/T2567-2008
Flexural modulus
MPa
≥3800
GB/T2567-2008
Heat distortion temperature
℃
≥70
GB/T1634-2004
Barcol hardness
---
≥45
GB/T3854-2005
Note:
1) The casting sample preparation method shall be executed according to GB/T8237-2005; Temperature 25 ℃, curing system: curing agent M-50 1.5%.
2) Post casting curing treatment: room temperature × 24 hours+60 ℃ × 3 hours+80 ℃ × 2 hours;
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