牌号简介 About |
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LGF9621是一种聚丙烯均聚物,以60%重量的长玻璃纤维增强。(PP-LGF60,长玻璃纤维颗粒)该PP-LGF60是一种“浓缩物”,必须用“纯”聚丙烯和/或矿物填充的PP基化合物进行稀释。“稀释”通常通过注射成型机上的重量计量装置作为颗粒的干燥混合物进行。LGF 9621.00和LGF 8100 PP共聚物的1:2的重量比将导致具有20重量%玻璃纤维的复合系统。LGF 9621经过特别设计,以满足某些汽车“内部”应用(如仪表板托架或集成车门模块)所需的长期耐热老化性(LTHA)。在140°C下ltha>1000 h和/或在150°C下ltha>400 h将在用‘纯’-pp(lgf 8000或lgf 8100)稀释至20%gf含量后得到。“长”玻璃纤维(11毫米长)提供了高刚度,强度和注塑件的抗冲击性。以下所示的性能已在标准化的“狗骨”形试样(ISO 3167)上进行了测量。注:在“真实”注塑件中出现的机械性能可能不同-取决于纤维方向和纤维长度分布曲线-它们本身是由硬件配置和加工参数(如螺钉和混合元件的类型、喷嘴的直径和半径)造成的热流道和热流道,浇口的数量和尺寸,充模过程中的注射速度和给料循环中的反压力)。 LGF 9621 is a polypropylene homopolymer reinforced with 60% by weight of long glass fibers. (PP-LGF60, Long Glass fiber Granulate).. This PP-LGF60 is a ‘concentrate' which has to de diluted with either 'neat'-polypropylene and/or mineral filled PP based compounds. The 'dilution' is typically done as a dry blend of granulates by means of gravimetric dosing devices at the injection-molding machine. A weight ratio of 1 : 2 of LGF 9621.00 and i.e. LGF 8100 PP-copolymer will result in a composite-system having 20% by weight of glass fibers. LGF 9621 has been especially formulated to meet the long term heat ageing resistance (LTHA) required for use in some automotive 'interior' applications i.e. instrument panel carrier or integrated door-modules. LTHA> 1000 h @140°C and/or LTHA > 400 h @150°C will be achieved after dilution to 20% GF-content with ‘neat'-PP (LGF 8000 or LGF 8100). The 'long' glass fibers (11 mm length) provide high stiffness, strength and impact-resistance of the injection molded parts. The properties shown below have been measured on standardized ‘dog bone'-shape specimens (ISO 3167). Note: The mechanical properties which will be present in 'real' injection-molded parts may be different - depending on the fiber-orientation and the fiber-length distribution profile - which themselves are resulting from hardware configuration and processing parameters (such as i.e. the type of screw and mixing elements, diameter and radii of nozzle and hot-runners, number and size of gates, injection speed during mold filling and backpressure during dosing cycle). |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
1.12 | g/cm³ | ISO 1183 |
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸模量 Tensile modulus |
6500 | MPa | ISO 527-2/5 |
拉伸强度 tensile strength |
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断裂 fracture |
105 | MPa | ISO 527-2/50 |
拉伸应变 Tensile strain |
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断裂 fracture |
2.3 | % | ISO 527-2/50 |
弯曲模量 Bending modulus 2 |
6500 | MPa | ISO 178 |
弯曲强度 bending strength 2 |
MPa | ISO 178 | |
断裂弯曲应变 Fracture bending strain |
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外“纤维”应变 External "fiber" strain |
% | ISO 178 | |
冲击性能 IMPACT |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
简支梁无缺口冲击强度 Charpy Unnotch Impact strength |
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23℃ 23℃ |
kJ/m² | ISO 179/1eU | |
23℃ 23℃ |
kJ/m² | ISO 179/1fU | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
热变形温度 Hot deformation temperature |
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1.8 MPa,未退火 1.8 MPa, unannealed |
℃ | ISO 75-2/A |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 3 点弯曲 |
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