PPO+20%GF美国RTP 1703FR
PPO改性:
未经改性的聚苯醚(PPO)树脂具有良好的力学性能、电性能、耐热性、阻燃性以及化学稳定性等,但是它的耐溶剂性差、制品容易发生应力开裂、缺口冲击强度低,另外它存在一个致命的弱点——熔体粘度高,加工成型性极差,纯PPO树脂不能采用注射方法成型,这样大大限制了它的应用。为了克服这些缺点,或赋予其新的性能,人们对PPO进行了多种改性。其方法有化学(共聚、嵌段、接枝和网化等)和物理(共混、填充、增强和微发泡等)改性两种。
美国RTP 1703FR物性表:
![[RTP Company]](http://www.rtpcompany.com/info/data/images/logo300.gif) | Product Data Sheet & General Processing Conditions
RTP 1703 FR Modified Polyphenylene Oxide (PPO) Glass Fiber Flame Retardant Halogen Free
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PROPERTIES & AVERAGE VALUES OF INJECTION MOLDED SPECIMENS | PERMANENCE | English | | SI Metric | | ASTM TEST | | | | Primary Additive | 20 % | | 20 % | | | | Specific Gravity | 1.25 | | 1.25 | | D 792 | | Molding Shrinkage | | | 1/8 in (3.2 mm) section | 0.0020 - 0.0030 in/in | | 0.20 - 0.30 % | | D 955 | | Water Absorption, 24 hrs @ 23°C | 0.080 % | | 0.080 % | | D 570 | MECHANICAL | | | | Impact Strength, Izod | | | notched 1/8 in (3.2 mm) section | 1.5 ft-lbs/in | | 80 J/m | | D 256 | | unnotched 1/8 in (3.2 mm) section | 8.0 ft-lbs/in | | 427 J/m | | D 4812 | | Tensile Strength | 11000 psi | | 76 MPa | | D 638 | | Tensile Elongation | 2.0 % | | 2.0 % | | D 638 | | Tensile Modulus | 0.95 x 10^6 psi | | 6550 MPa | | D 638 | | Flexural Strength | 16000 psi | | 110 MPa | | D 790 | | Flexural Modulus | 0.85 x 10^6 psi | | 5861 MPa | | D 790 | THERMAL | | | | Ignition Resistance* | | | Flammability** | V-0 @ 1/16 in | | V-0 @ 1.5 mm | | D 3801 |
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