牌号简介 About |
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Uninor PPO(聚苯醚和苯乙烯的混合物)是一种无定形热塑性塑料,具有优异的物理强度、阻燃性和优异的电气性能。与许多随着温度升高而逐渐失去强度的非晶态材料不同,Uninor PPO在温度超过200°F时保持其高刚度。此外,它的低吸湿性和低热膨胀系数使其成为可用的尺寸最稳定的材料之一。Uninor PPO在厚度为0.24“及以上时具有出色的V-0 UL-94火焰等级。对于需要提高强度和刚度的应用,可提供30%玻璃纤维填充UNINOR® Rg-30。NYTEF塑料公司的Uninor PPO材料成型机易于加工,可提供各种大规格杆、板和管状杆尺寸。产品属性230°F连续使用温度卓越的强度和刚度,即使在高温下,低吸湿性优异的电气性能额定值为ul v-0(0.240”),易于加工和制造玻璃纤维填充等级,用于提高强度和刚度工业、汽车飞机和航空航天设备制造。在电气和电子制造微波通信应用中,管汇电绝缘体、电连接器和元件、飞机仪表、商业设备外壳 UNINOR PPO (blend of polyphenylene oxide and styrene) is an amorphous thermoplastic that offers a superior blend of physical strength, flame resistance, and outstanding electrical properties. Unlike many amorphous materials that tend to steadily lose strength as temperatures increase, UNINOR PPO maintains its high stiffness to temperatures in excess of 200°F. In addition, it's low moisture absorption and low coefficient of thermal expansion contribute to it being one of the most dimensionally stable materials available. UNINOR PPO has an excellent V-0 UL-94 flame rating at thicknesses of 0.24" and over. For applications that require improved strength and stiffness, 30% glass fiber filled UNINOR Rg-30 is available. Nytef Plastics' UNINOR PPO stock shapes machine easily and are available in a full range of heavy gauge rod, plate and tubular bar sizes. PRODUCT ATTRIBUTES 230°F continuous use temperature Excellent strength and rigidity, even at elevated temperatures Low moisture absorption Superior electrical properties Rated UL V-0 (0.240") Easily machined and fabricated Glass fiber filled grades for improved strength and stiffness INDUSTRIES Automotive Aircraft and aerospace Appliance manufacturing Electrical and electronics manufacturing Microwave communications APPLICATIONS Manifolds Electrical insulators Electrical connectors and components Aircraft instrumentation Business equipment housings |
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 |
1.28 | g/cm³ | ASTM D792 |
吸水率 Water absorption rate |
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24hr 24hr |
0.060 | % | ASTM D570 |
冲击性能 IMPACT |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
悬臂梁缺口冲击强度 Impact strength of cantilever beam notch |
120 | J/m | ASTM D256 |
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 |
138 | ℃ | ASTM D648 |
连续使用温度 Continuous use temperature |
110 | ℃ | UL 746 |
熔融峰值温度 Melting peak temperature |
℃ | ASTM D3418 | |
线性热膨胀系数 Linear coefficient of thermal expansion |
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MD MD |
1/℃ | ASTM D696 | |
电气性能 Electrical performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
体积电阻率 Volume resistivity |
ohms·cm | ASTM D257 | |
介电强度 Dielectric strength 2 |
kV/mm | ASTM D149 | |
介电常数 Dielectric constant |
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60 Hz 60 Hz |
ASTM D150 | ||
耗散因数 Dissipation factor |
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60 Hz 60 Hz |
ASTM D150 | ||
阻燃性能 FLAME CHARACTERISTICS |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
阻燃等级 Flame retardant level |
UL 94 | ||
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
洛氏硬度 Rockwell hardness |
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L 级 Level L |
ASTM D785 | ||
拉伸强度 tensile strength |
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屈服 yield |
MPa | ASTM D638 | |
拉伸应变 Tensile strain |
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断裂 fracture |
% | ASTM D638 | |
弯曲模量 Bending modulus |
MPa | ASTM D790 | |
弯曲强度 bending strength |
MPa | ASTM D790 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 方法A(短时间) |
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禾大逾9亿欧元出售大部分性能技术和工业化学品业务
2021-12-24 搜料网资讯: 12月22日,嘉吉(Cargill)已与英国特种化学品公司禾大国际(Croda)达成协议,以9.15亿欧元(10.3亿美元)的价格,收购后者大部分性能技术和工业化学品业务。 此次被出售的业务占 |
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