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ABS RTP 662
PROPERTIES AVERAGE VALUES OF INJECTION MOLDED SPECIMENS | |||||
PERMANENCE |
English | SI Metric | ASTM TEST |
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Primary Additive | 15% | 15% | |||
Specific Gravity | 1.17 | 1.17 | D 792 | ||
Molding Shrinkage | |||||
1/8 in (3.2 mm) section | 0.0040 - 0.0060in/in | 0.40 - 0.60% | D 955 | ||
MECHANICAL |
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Impact Strength, Izod | |||||
notched 1/8 in (3.2 mm) section | 1.0ft-lbs/in | 53J/m | D 256 | ||
unnotched 1/8 in (3.2 mm) section | 3.0ft-lbs/in | 160J/m | D 4812 | ||
Tensile Strength | 5000psi | 34MPa | D 638 | ||
Tensile Elongation | 2.0 - 4.0% | 2.0 - 4.0% | D 638 | ||
Tensile Modulus | 0.35x 10^6 psi | 2413MPa | D 638 | ||
Flexural Strength | 9000psi | 62MPa | D 790 | ||
Flexural Modulus | 0.35x 10^6 psi | 2413MPa | D 790 | ||
ELECTRICAL |
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Volume Resistivity | 1ohm.cm | 1ohm.cm | D 257 | ||
Surface Resistivity | 1E4ohm/sq | 1E4ohm/sq | D 257 ESD STM11.11 |
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Surface Resistance | 1E3ohm | 1E3ohm | ESD STM11.11 | ||
Static Decay | |||||
MIL-PRF-81705D, 5kV to 50 V, 12% RH | 2.00s | 2.00s | FTMS101C 4046.1 |
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PROPERTY NOTES | |||||
Data herein is typical and not to be construed as specifications. Unless otherwise specified, all data listed is for natural or black colored materials. Pigments can affect properties. |
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GENERAL PROCESSING FOR INJECTION MOLDING |
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English | SI Metric | ||||
Injection Pressure | 10000 - 15000psi | 69 - 103MPa | |||
Melt Temperature | 400 - 475°F | 204 - 246°C | |||
Mold Temperature | 150 - 180°F | 66 - 82°C | |||
Drying | 2 hrs @ 180°F | 2 hrs @ 82°C | |||
Moisture Content | 0.10% | 0.10% | |||
Dew Point | 0°F | -18°C |
ABS RTP 662
成型性能
无定形材料,流动性中等,吸湿大,必须充分干燥,表面要求光泽的塑件须长时间预热干燥80-90度,3小时;
宜取高料温,高模温,但料温过高易分解(分解温度为270度).对精度较高的塑件,模温宜取50-60度,对高光泽.耐热塑件,模温宜取60-80度;
如需解决夹水纹,需提高材料的流动性,采取高料温、高模温,或者改变入水位等方法;
如成形耐热级或阻燃级材料,生产3-7天后模具表面会残存塑料分解物,导致模具表面发亮,需对模具及时进行清理,同时模具表面需增加排气位置;
冷却速度快,模具浇注系统应以粗,短为原则,宜设冷料穴,浇口宜取大,如:直接浇口,圆盘浇口或扇形浇口等,但应防止内应力增大,必要时可采用调整式浇口。模具宜加热,应选用耐磨钢;
料温对塑件质量影响较大,料温过低会造成缺料,表面无光泽,银丝紊乱料温过高易溢边,出现银丝暗条,塑件变色起泡;
用途
ABS树脂的最大应用领域是汽车、电子电器和建材。汽车领域的使用包括汽车仪表板、车身外板、内装饰板、方向盘、隔音板、门锁、保险杠、通风管等很多部件。在电器方面则广泛应用于电冰箱、电视机、洗衣机、空调器、计算机、复印机等电子电器中。建材方面,ABS管材、ABS卫生洁具、ABS装饰板广泛应用于建材工业。此外ABS还广泛的应用于包装、家具、体育和娱乐用品、机械和仪表工业中。