共聚多酯/BR203/Eastman Chemical Company 物性表
共聚多酯/BR203/Eastman Chemical Company
规格用途
| 该料用途 | 个人护理; 牙刷柄 |
| 备注说明 | Eastar™ BR203 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 BR203 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR203 is specifically formulated to provide the optimal combination of chemical resistance, bristle retention, strength, stiffness, toughness, processability, clarity, colorability, and feel for toothbrushes. Under existing United States Food and Drug Administration (FDA) regulations, Eastar™ BR203 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240.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, visit www.greenguard.org. Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products. |
技术参数
| 性能项目 | 测试条件 | 测试方法 | 数值/描述 | 单位 | |
| 注射 | 干燥温度 | 쎀눐 | °C | 干燥时间 | ꙓ.눐 | hr | 加工（熔体）温度 | 뉳눐 到 덱눐 | °C | 模具温度 | ꉧ뉳 到 ꙓ눐 | °C |
| 物理性能 | 密度 / 比重 | -- | ASTM D792 | ꉧ.눐 | g/cm³ | 23°C | ISO 1183 | ꉧ.ꉧ덱 | g/cm³ | 收缩率 - 流动 | ASTM D955 | 3.20 mm | 눐.눐 到 눐.눐 | % |
| 硬度 | 洛氏硬度 | ASTM D785 | R 级, 23°C | ꉧ눐뉳 | |
| 光学性能 | 透射率 | ASTM D1003 | 总计 | 덱ꉧ.눐 | % | 常规 | 솆덱.눐 | % | 雾度 | ASTM D1003 | 눐.ꙓ눐 | % |
| 热性能 | 载荷下热变形温度 | 0.45 MPa, 未退火 | ASTM D648, ISO 75-2/B | 쎀ꙓ.눐 | °C | 1.8 MPa, 未退火 | ASTM D648 | 뉳.눐 | °C | 1.8 MPa, 未退火 | ISO 75-2/A | .눐 | °C |
| 机械性能 | 抗张强度 | 屈服, 23°C | ASTM D638 | .눐 | MPa | 屈服, 23°C | ISO 527-2 | 쎀.눐 | MPa | 断裂, 23°C | ASTM D638 | 뉳ꙓ.눐 | MPa | 断裂, 23°C | ISO 527-2 | 덱.눐 | MPa | 伸长率 | 屈服, 23°C | ASTM D638 | 뉳.눐 | % | 屈服, 23°C | ISO 527-2 | .눐 | % | 断裂, 23°C | ASTM D638 | ꙓꉧ눐 | % | 断裂, 23°C | ISO 527-2 | ꉧ눐 | % | 弯曲模量 | 23°C | ASTM D790 | ꉧ덱눐눐 | MPa | 23°C | ISO 178 | ꉧ쎀뉳눐 | MPa | 弯曲应力 | 23°C | ISO 178 | .눐 | MPa | 屈服, 23°C | ASTM D790 | 쎀.눐 | MPa |
| 冲击性能 | 悬壁梁缺口冲击强度 | -40°C | ASTM D256 | 눐 | J/m | 23°C | ASTM D256 | ꙓ쎀눐 | J/m | -40°C | ISO 180 | .ꙓ | kJ/m² | 23°C | ISO 180 | ꙓ눐 | kJ/m² | 无缺口悬臂梁冲击 | ASTM D4218 | -40°C | 无断裂 | 23°C | 无断裂 | 装有测量仪表的落镖冲击 | -40°C, Energy at Peak Load | ASTM D3763 | 솆.눐 | J | 23°C, Energy at Peak Load | ASTM D3763 | 뉳.눐 | J | -40°C, 能量到力量峰值 | ISO 6603-2 | 뉳뉳.눐 | J | 23°C, 能量到力量峰值 | ISO 6603-2 | 쎀ꉧ.눐 | J |
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