牌号简介 About |
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Task® 21是一种聚氨酯产品,。 它可以通过浇铸进行加工,在亚太地区、北美洲、拉丁美洲、欧洲或非洲和中东有供货。 典型应用领域为:样机研究。 TASK® 21 is a performance urethane casting resin that has been described by many as having similar performance and mechanical characteristics to ABS plastic, with high compressive and flexural strength. TASK® 21 has no odor and is easy to process. Mix ratio is 2A:1B by weight or volume. Pot life is 6 minutes and handling strength is reached in 60 minutes at room temperature (depending on mass and configuration). TASK® 21 features a low mixed viscosity of 500 cps and readily de-airs itself when cast into molds. SO-Strong® or IGNITE® colorants can be added for color and a variety of powder fillers can be added to alter performance or appearance characteristics. Applications for TASK® 21 include rapid prototyping, casting strong and highly detailed models, making holding / assembly fixtures, figurines and decorative castings. IMPORTANT - TASK® 21 can not be cast into platinum-cure silicone molds. We recommend casting TASK® 21 into tin-cure silicone or urethane rubber molds (using a release agent). |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
1.07 | g/cm³ | ASTM D1475 |
特定体积 Specific volume |
0.936 | cm³/g | ASTM D792 |
收缩率 Shrinkage rate |
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MD MD |
0.58 | % | ASTM D2566 |
热固性混合粘度 Thermosetting mixed viscosity |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
脱模时间 stripping time |
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23℃ 23℃ |
60 | min | |
补充信息 Supplementary information |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
混合比 Mixing ratio |
2A:1B by volume | ||
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
邵氏硬度 Shore hardness |
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邵氏 D Shaw's D |
ASTM D2240 | ||
拉伸模量 Tensile modulus |
MPa | ASTM D638 | |
拉伸强度 tensile strength |
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断裂 fracture |
MPa | ASTM D638 | |
拉伸应变 Tensile strain |
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断裂 fracture |
% | ASTM D638 | |
弯曲模量 Bending modulus |
MPa | ASTM D790 | |
弯曲强度 bending strength |
MPa | ASTM D790 | |
压缩模量 Compression modulus |
MPa | ASTM D695 | |
压缩强度 compressive strength |
MPa | ASTM D695 | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
热变形温度 Hot deformation temperature |
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1.8 MPa,未退火 1.8 MPa, unannealed |
℃ | ASTM D648 | |
储存稳定性 storage stability |
min | ASTM D2471 |
备注 |
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1 一般属性:这些不能被视为规格。 |
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