Eastar? BR203
共聚多酯
产品说明：
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.
Eastar? BR203 物性表
| 基本信息 |
|
| 添加剂 |
|
| 特性 |
刚性，良好 可加工性，良好 良好的强度 良好的着色性 耐化学性良好 清晰度，高 韧性良好 食品接触的合规性 脱模性能良好 外观良好 |
| 用途 |
|
| 机构评级 |
|
| 外观 |
|
| 形式 |
|
| 加工方法 |
|
| 物理性能 |
额定值 |
单位制 |
测试方法 |
| 比重 |
|
|
|
| -- |
1.20 |
g/cm3 |
ASTM D792 |
| 23°C |
1.19 |
g/cm3 |
ISO 1183 |
| 收缩率 - 流动(3.20 mm) |
0.20 到 0.60 |
% |
ASTM D955 |
| 硬度 |
额定值 |
单位制 |
测试方法 |
| 洛氏硬度(R 级, 23°C) |
105 |
|
ASTM D785 |
| 机械性能 |
额定值 |
单位制 |
测试方法 |
| 抗张强度 |
|
|
|
| 屈服, 23°C |
46.0 |
MPa |
ASTM D638 |
| 屈服, 23°C |
47.0 |
MPa |
ISO 527-2 |
| 断裂, 23°C |
53.0 |
MPa |
ASTM D638 |
| 断裂, 23°C |
49.0 |
MPa |
ISO 527-2 |
| 伸长率 |
|
|
|
| 屈服, 23°C |
5.0 |
% |
ASTM D638 |
| 屈服, 23°C |
4.0 |
% |
ISO 527-2 |
| 断裂, 23°C |
310 |
% |
ASTM D638 |
| 断裂, 23°C |
210 |
% |
ISO 527-2 |
| 弯曲模量 |
|
|
|
| 23°C |
1900 |
MPa |
ASTM D790 |
| 23°C |
1750 |
MPa |
ISO 178 |
| 弯曲应力 |
|
|
|
| 23°C |
64.0 |
MPa |
ISO 178 |
| 屈服, 23°C |
67.0 |
MPa |
ASTM D790 |
| 冲击性能 |
额定值 |
单位制 |
测试方法 |
| 悬壁梁缺口冲击强度 |
|
|
|
| -40°C |
60 |
J/m |
ASTM D256 |
| 23°C |
370 |
J/m |
ASTM D256 |
| -40°C |
6.3 |
kJ/m2 |
ISO 180 |
| 23°C |
30 |
kJ/m2 |
ISO 180 |
| 无缺口悬臂梁冲击 |
|
|
ASTM D4218 |
| -40°C |
无断裂 |
|
ASTM D4218 |
| 23°C |
无断裂 |
|
ASTM D4218 |
| 装有测量仪表的落镖冲击 |
|
|
|
| -40°C, Energy at Peak Load |
48.0 |
J |
ASTM D3763 |
| 23°C, Energy at Peak Load |
45.0 |
J |
ASTM D3763 |
| -40°C, 能量到力量峰值 |
55.0 |
J |
ISO 6603-2 |
| 23°C, 能量到力量峰值 |
71.0 |
J |
ISO 6603-2 |
| 热性能 |
额定值 |
单位制 |
测试方法 |
| 载荷下热变形温度 |
|
|
|
| 0.45 MPa, 未退火 |
73.0 |
°C |
ASTM D648, ISO 75-2/B |
| 1.8 MPa, 未退火 |
65.0 |
°C |
ASTM D648 |
| 1.8 MPa, 未退火 |
66.0 |
°C |
ISO 75-2/A |
| 光学性能 |
额定值 |
单位制 |
测试方法 |
| 透射率 |
|
|
ASTM D1003 |
| 常规 |
89.0 |
% |
ASTM D1003 |
| 总计 |
91.0 |
% |
ASTM D1003 |
| 雾度 |
0.30 |
% |
ASTM D1003 |
| 注射 |
额定值 |
单位制 |
|
| 干燥温度 |
70.0 |
°C |
|
| 干燥时间 |
3.0 |
hr |
|
| 加工（熔体）温度 |
250 到 290 |
°C |
|
| 模具温度 |
15.0 到 30.0 |
°C |
|
