Taizhou Tianrun Synthetic Chemical Co., Ltd 苏ICP备18051636号-1 Powered By: www.300.cn
TR－638 Unsaturated polyester resins
Features and main purposes:
TR－638 is a kind of unsaturated polyester resin synthesized with main materials of phthalic anhydride and standard diatomic alcohol, It has dissolved in styrene with addition of high active flame retardant, featuring low viscosity, high reactivity, flame retardant and excellent weathering-resistance. After curing, it shows high mechanical properties and hardness, especially applicable for FRP products that have high demand for flame retardant and weathering-resistance.
Specification of liquid resin：(25℃)：
| Items |
Unit |
Testing result |
Test Method |
|
Appearance |
--- |
Transparent water-white liquid |
GB/T8237.6.1.1 |
|
Viscosity |
Pa·s |
0.18-0.38 |
GB/T 7193-2008 |
|
Acid Value |
mgKOH/g |
14-25 |
GB/T 2895-2008 |
|
Geltime |
Min（25℃） |
6.40-10.60 |
GB/T 7193-2008 |
|
Shelf life |
H（80℃） |
≥24 |
GB/T 7193-2008 |
Note：25°C water bath, adding 2ml peroxide methyl ethyl ketone solution and 4ml iso-octanoic acid cobalt solution into 100g resin
三．Casting matrix(typical valu)：
| Items |
Unit |
Test performance |
Test Method |
|
Casting matrix |
|||
|
Tensile strength |
MPa |
≥65 |
GB/T2567-2008 |
|
Tensile Modulus |
MPa |
≥3500 |
GB/T2567-2008 |
|
Break elongation rate |
% |
≥2.0 |
GB/T2567-2008 |
|
Flexible strength |
MPa |
≥110 |
GB/T2567-2008 |
|
Flexible Modulus |
MPa |
≥4000 |
GB/T2567-2008 |
|
Heat Distortion Temp |
℃ |
≥80 |
GB/T1634-2004 |
|
Barcol hardness |
--- |
≥45 |
GB/T3854-2005 |
Note: (1) Casting matrix sample is made according to GB/T8237-2005; with temperature of 25°C, curing system: promoter RCA 1.0%, Curing agent M-50 1.5%.
(2) Post-curing treatment of casting matrix: room temperature×24 Hours+60°C×3 Hours+80°C×2 Hours;