Address: No.1, Yu Xing Road, Yong’an zhou Town, Gaogang District, Taizhou City
Service phone:0523-86925111
Emergency Call：4001165689 Fax:0523-86925988
Website：www.tztrchem.cn
E-mail:trtuhongyuan@tztrchem.cn.
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Product classification
TR－885 Unsaturated polyester resins
TR－885 Unsaturated polyester resins
Features and main purposes:
TR－885 is a kind of unsaturated polyester resin synthesized with main materials of phthalic anhydride and standard diatomic alcohol, having dissolved in styrene.It features medium viscosity and moderate reactivity. With excellent mechanical properties.Applicable for injection molding crafts, especially for imitation granite/marble and handicrafts, with features of excellent strength, toughness, water-resistance and weathering-resistance.
Specification of liquid resin：(25℃)：
| Items |
Unit |
Testing result |
Test Method |
|
Appearance |
--- |
Transparent water-white with blue light |
GB/T8237.6.1.1 |
|
Viscosity |
Pa·s |
0.7-1.3 |
GB/T 7193-2008 |
|
Acid Value |
mgKOH/g |
15-26 |
GB/T 2895-2008 |
|
Geltime |
Min（25℃） |
5.5-10.5 |
GB/T 7193-2008 |
|
Shelf life |
H（80℃） |
≥24 |
GB/T 7193-2008 |
Note: 25°C water bath, adding 2ml methyl ethyl ketone peroxide solution and 2ml RCA promoter solution into 100g resin
Casting matrix(typical valu)：
| Items |
Unit |
Test performance |
Test Method |
|
Casting matrix |
|||
|
Tensile strength |
MPa |
≥60 |
GB/T2567-2008 |
|
Tensile Modulus |
MPa |
≥3000 |
GB/T2567-2008 |
|
Break elongation rate |
% |
≥3.0 |
GB/T2567-2008 |
|
Flexible strength |
MPa |
≥100 |
GB/T2567-2008 |
|
Flexible Modulus |
MPa |
≥3500 |
GB/T2567-2008 |
|
Heat Distortion Temp |
℃ |
≥55 |
GB/T1634-2004 |
|
Barcol hardness |
--- |
≥40 |
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;