供应牙刷柄专用PCTG BR203 美国伊斯曼 透明牙刷柄用PCTG
Regular Transmittance
89%
Product Data Sheet
Eastar™ Copolyester BR003, Natural
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| Application/Uses | - Oral hygiene
- Plastics for hygiene feminine products
- Toothbrushes
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| Product Description |
| Eastar™ BR003 Copolyester contains a mold release additive. It has excellent appearance and is nearly water-clear. Its most outstanding features are its chemical resistance and processing capabilities. Exposure to aromatic oils often causes crazing or actual fracture of many polymer resins, but BR003 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR003 is specifically formulated to provide the optimal combination of chemical resistance, bristle retention, strength, stiffness, processability, clarity, colorability, and feel for toothbrushes. Under existing United States Food and Drug Administration(FDA) regulations, Eastar™ BR003 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240. Migration tests on BR003 samples meet the compliance requirements of 21 CFR 177.1240(e)(1),(2) and (3). This product has been GREENGUARD INDOOR AIR QUALITY CERTIFIED®. The GREENGUARD INDOOR AIR QUALITY CERTIFIED® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute (GEI). GEI is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. The GREENGUARD Certification Program is an industry independent, third-party testing program for low-emitting products and materials for indoor environments. For more information about GEI and to obtain printable certificates for Eastman™ Copolyesters, visitwww.greenguard.org. Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products. |
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| Typical Properties |
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| Propertya | Testb Method | Typical Value, Unitsc |
| Specific Gravity | D 792 | 1.20 |
| Mold Shrinkage Parallel to Flow, 3.2-mm (0.125-in.) thickness | D 955 | 0.002-0.006 mm/mm (0.002-0.006 in./in.) |
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| Mechanical Properties |
| Tensile Stress @ Yield | D 638 | 47 MPa (6900 psi) |
| Tensile Stress @ Break | D 638 | 51 MPa (7400 psi) |
| Elongation @ Yield | D 638 | 5% |
| Elongation @ Break | D 638 | 320% |
| Flexural Modulus | D 790 | 2000 MPa (2.9 x 105 psi ) |
| Flexural Yield Strength | D 790 | 69 MPa (10000 psi) |
| Rockwell Hardness, R Scale | D 785 | 103 |
| Izod Impact Strength, Notched |
| D 256 | 80 J/m (1.5 ft·lbf/in.) |
| D 256 | 40 J/m (0.7 ft·lbf/in.) |
| Impact Strength, Unnotched |
| D 4812 | NB |
| D 4812 | NB |
| Impact Resistance (Puncture), Energy @ Max. Load |
| D 3763 | 42 J (31 ft·lbf) |
| D 3763 | 48 J (35 ft·lbf) |
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| Mechanical Properties (ISO Method) |
| Tensile Strength @ Yield | ISO 527 | 47 MPa |
| Tensile Strength @ Break | ISO 527 | 46 MPa |
| Elongation @ Yield | ISO 527 | 4% |
| Elongation @ Break | ISO 527 | 200% |
| Tensile Modulus | ISO 527 | 1800 MPa |
| Flexural Modulus | ISO 178 | 1850 MPa |
| Flexural Strength | ISO 178 | 65 MPa |
| Izod Impact Strength, Notched |
| ISO 180 | 7.8 kJ/m2 |
| ISO 180 | 4.8 kJ/m2 |
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| Thermal Properties |
| Deflection Temperature |
| D 648 | 73°C (164°F) |
| D 648 | 65°C (149°F) |
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| Optical Properties |
| Haze | D 1003 | 0.3% |
| Regular Transmittance | D 1003 | 89% |
| Total Transmittance | D 1003 | 91% |
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| Typical Processing Conditions |
| Drying Temperature | | 70°C (160°F) |
| Drying Time | | 3 hrs |
| Processing Melt Temperature | | 230-280°C (450-530°F) |
| Mold Temperature | | 15-30°C (60-80°F) |



