| 厂家(产地)：伊斯曼化学 | 牌号：A***4 | 销售方式：品牌经销 |
| 类型：标准料 | 加工级别：注塑级 | 特性级别：透明级、 抗化学性 |
| 用途级别：食品级 |
| Product Data Sheet Eastar? Copolyester A***4, Natural | |||||||
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| Product Description | |||||||
Eastar? A***4 copolyester is a high flow product that contains a mold release. Eastar? A***4 flow lengths are increased 20-40% relative to Eastar? AN004 as shown by spiral flow testing. Other outstanding features of Eastar? are easily maintained such as excellent appearance and clarity, good physical properties, chemical resistance, and easy processing. This high flow product is especially suited for those applications utilizing thin-walled intricate tools. Under existing United States Food and Drug Administration (FDA) regulations, Eastar? A***4 may be used in food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240. | |||||||
| Propertya | Testb Method | Typical Value, Unitsc | ||
| General Properties | ||||
| Specific Gravity | D 792 | 1.19 | ||
| Mold Shrinkage | D 955 | 0.003 mm/mm (0.003 in./in.) | ||
| Water Absorption, 24 h immersion | D 570 | 0.15% | ||
| Mechanical Properties | ||||
| Tensile Stress @ Yield | D 638 | 50 MPa (7200 psi) | ||
| Tensile Stress @ Break | D 638 | 43 MPa (6300 psi) | ||
| Elongation @ Yield | D 638 | 5% | ||
| Elongation @ Break | D 638 | 270% | ||
| Flexural Yield Strength | D 790 | 68 MPa (9800 psi) | ||
| Flexural Modulus | D 790 | 1900 MPa (2.7 x 105 psi ) | ||
| Rockwell Hardness, R Scale | D 785 | 107 | ||
| Izod Impact Strength, Notched | ||||
| D 256 | 80 J/m (1.5 ft·lbf/in.) | ||
| D 256 | 44 J/m (0.8 ft·lbf/in.) | ||
| Impact Strength, Unnotched | ||||
| D 4812 | NB | ||
| D 4812 | NB | ||
| Impact Resistance (Puncture), Energy @ Max. Load | ||||
| D 3763 | 40 J (30 ft·lbf) | ||
| D 3763 | 38 J (28 ft·lbf) | ||
| Thermal Properties | ||||
| Deflection Temperature | ||||
| D 648 | 73°C (163°F) | ||
| D 648 | 66°C (150°F) | ||
| Vicat Softening Temperature @ 1 kg load | D 1525 | 86°C (186°F) | ||
| Optical Properties | ||||
| Total Transmittance | D 1003 | 92% | ||
| Haze | D 1003 | < 1% | ||
| Typical Processing Conditions | ||||
| Drying Temperature | 70°C (160°F) | |||
| Drying Time | 4 hrs | |||
| Processing Melt Temperature | 230-280°C (450-530°F) | |||
| Mold Temperature | 15-30°C (60-80°F) | |||
| a Unless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity. b Unless noted otherwise, the test method is ASTM. c Units are in SI or US customary units. | ||||
| Comments Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given. | ||||
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