热膨胀系数(Coefficient of ThermalExpansion,简称CTE)是指材料在温度变化时,单位温度变化时的长度、面积或体积的变化量与初始长度、面积或体积的比值。它描述了材料的热膨胀性质,是工程设计中必须考虑的重要参数之一。 第二步:TPU材料的基本特性 在讨论TPU材料的热膨胀系数之前,我们先了解一下TPU材料的基本特性。TPU材...
The dispersed polysiloxane TPU rubbers not only effectively reduce the stress of cured epoxy resins, by reducing flexural modulus and the coefficient of thermal expansion, but also increase the glass transition temperature because of the rigid oxazolidone structure formation. Electronic devices ...
线性热膨胀系数(Coefficient of Linear Thermal Expansion,简称CLTE线胀系数): α=ΔL/(L*ΔT) 和体积热膨胀系数: γ=1/V。(ξV/ξT)p 大多数情况之下,此系数为正值。也就是说温度升高体积扩大。也有例外,当水在0到4摄氏度之间,会出现反膨胀。而一些陶瓷材料在温度升高情况下,几乎不发生几何特性变化,其...
The composition provides a broader range of mechanical and thermal properties for TPU formulations, including improvements in hardness, higher elasticity modulus, and improved softening temperature and coefficient of thermal expansion, in addition to improved clarity....
热性能(热性能(Thermal properties)) 值(Value) 单位(Unit) 测试标准(Test Standard) ASTM数据(ASTM Data) 热膨胀系数(Coefficient of Thermal Expansion) (MD) 165 E-6/K ASTM D 696 Glass Transition 温度(Temperature) -47 °C ASTM E 1356 Vicat 温度(Temperature) 81.7 °C ASTM D 1525CharacteristicsFe...
[44] In R1, the size increase of the soft domain is larger than that of the hard domain, which may be due to the larger expansion coefficient of the soft domain and ongoing phase separation during heating. During the melting in R2, the size of both hard and soft domain increase. ...
400 μm (nozzle diameter) and goes through conformational changes caused by the coefficient of thermal expansion during cooling process, which can lead to uncontrolled topology. Thus, we consider that height changes observed (<500 nm) in the regions analyzed are acceptable considering printing ...
Frictional coefficientASTM D1894 泰伯耐磨性(1000 周期,1000 g,H-18 转轮) Taber AbrasionmgASTM D1044 邵氏硬度(邵氏 D) Shore hardnessASTM D2240 弹性体 ELASTOMERChronoFlex® AL 75DBionate® 75D单位 UNIT测试方法 TEST METHOD 撕裂强度 tear strengthkN/mASTM D624 ...
Frictional coefficientASTM D1894 泰伯耐磨性(1000 周期,1000 g,H-18 转轮) Taber AbrasionmgASTM D1044 邵氏硬度(邵氏 A) Shore hardnessASTM D2240 电气性能 ELECTRICALCarboSil™ 20 90ABionate® 80A单位 UNIT测试方法 TEST METHOD 介电常数(60 Hz) ...
Die C lbf/in ASTM D624 775 Thermal properties Glass transition temperature DMA=Dynamic Mechanical Analysis °F DMA -4.0 Vicat softening temperature Rate A; 1 kg; 50 °C/h °F ASTM D1525 239 Coefficient of linear thermal expansion, flow/cross-flow in/in/°F ASTM D696 7.0 E-05 Other pr...