K-Resin KR03
K-Resin® KR03 process very well in injection molding, providing good cycle times and design flexibility. K-Resin® KR03 alone or in blends, can be extruded into sheet and thermoformed on conventional equipment at high output rates. The favorable economics of K-Resin® SBC, along with high productivity, have made possible tough clear disposable drinking cups, lids and other packaging applications. K-Resin® KR03 will process on most conventional equipment, allowing the molder to run a crystal clear bottle without expensive machine modifications, special molds, different screws, or dryers. K-Resin® KR03 can be blow molded in a broad range of sizes and shapes, from small pill bottles and medical drainage units, to very tall display bottles. They can also be injection blow molded into extremely high impact bottles with glass-like clarity.
Key Features
- Excellent Clarity
- Good Stiffness
- Good Formability
- Good Toughness
- High Surface Gloss
Applications
- Toys
- Clam Packaging
- Displays
- Container, Cups and Lids
- Extruded Sheets
- Blow Bottles
Industries
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Grade Version
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Properties
属性
无色产品在摄氏 23 度时的典型值 测试方法 单位 数值 流变性能 Melt Flow Rate, 200 °C/5 kg ASTM D 1238 g/10 min 7.5 机械性能 Instrumented Dart Impact (total energy) ASTM D 3763 in-lbs 354 Tensile Modulus ASTM D 638 psi x 10³ 220 Tensile Stress at Yield, 23 °C ASTM D 638 psi 3800 Tensile Strain at Break, 23 °C ASTM D 638 % 230 Flexural Modulus, 23 °C ASTM D 790 psi x 10³ 260 Flexural Strength, 23 °C ASTM D 790 psi 5400 Hardness, Shore D ASTM D 2240 - 63 Nominal Strain at Break, 23 °C - % 170 热性能 Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °F 185 DTUL @ 264 psi - Annealed ASTM D 648 °F 144 其他属性 Light Transmission at 550 nm ASTM D 1003 % 92 Gardner Gloss (mold temperature 100°F) ASTM D2457 % 162 Haze ASTM D 1003 % 1 Other Properties Density (ASTM ) ASTM D 792 g/cm³ 1.01 Moisture Absorption ASTM D570 % < 0.09 The nominal properties herein are typical of the product but do not reflect normal testing variance and therefore should not be used for specification purposes. Values are rounded.
[Tensile Yield Strength/Tensile Elongation @ Break] = Type 1 @ 2 in/min (50 mm/min)
[Flexural Modulus/Flexural Yield Strength] = 0.125 in (3.2 mm) specimen @ 0.5 in/sec (1.27 cm/min)
[Instrumented Impact Total Energy] = 0.125 in (3.2 mm) specimen @ 150 in/sec (381 cm/sec) impact rate -
Processing
处理
流动特性
在1 mm至2 mm的厚度下进行螺旋试验，其结果显示，流动长度与熔体温度几乎线性相关（图1）。如壁厚小于1 mm，流动性可能极差，因为随着壁厚的降低，流动阻力不成比例地增加。 熔体温度大于250°C [482°F]则会导致材料发生交联，使流动性进一步降低。
材料出现浑浊和泛黄迹象，也表明了材料内部出现交联。
图1：螺旋流动长度试验中Styrolux®的流动性；注射压力 = 1500 bar。
收缩
Styrolux®的收缩率在0.3%至1%左右。与熔体流向平行的部位收缩率最低，浇口附近与熔体流向相垂直的部位收缩率稍高些，离浇口最远的区域收缩率最高（图2）。调节熔体温度会对收缩率和收缩差产生影响。 熔体温度高，会使收缩率降低，浇口近端和远端之间的收缩差也会变小。
模具表面温度和注射速度对收缩率不起决定性作用。
图2： Styrolux® 656 C的收缩性
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Safety Data Sheet