产品·日本东丽推出新一代Torayca®预浸料ET40
本文摘要：（由ai生成）
TORAYCA® Prepreg ET40是一种创新预浸料，结合高机械性能和卓越成型性。通过在单向预浸料上精确开缝，ET40形成了一种特殊单向SMC材料，纤维束规则排列，确保模压过程中均匀流动，实现复杂形状成型，如肋条和深拉，同时保持均质层压结构。ET40具备与单向预浸料相当的表面外观、模量和80%以上的强度，显著缩短生产周期，提升大批量应用的效率，适用于汽车部件等领域。
TORAYCA® Prepreg ET40 is an innovative prepreg which simultaneously provides high mechanical properties and excellent formability. ET stands for Extensible and Transformable by 40%. The superior levels of formability can achieve complex shaping by compression molding with equivalent mechanical properties to conventional UD prepreg. Those features enable to drastically reduce cycle time and improve proactivity for a large volume applications such as automotive parts.
Processing Technology
ET40 is made by introducing slits into UD prepreg in a controlled manner, creating a type of unidirectional SMC material in which fiber bundles are regularly arrayed in the same direction. This method allows for the consistent and regular flow of the bundles during the molding process and therefore results in the ability to be shaped into complex shapes, such as rib and deep-drawing, while maintaining a homogenous laminate structure due to its extensible and transformable nature. As a result of specific slitting patterns, ET40 is able to achieve the equivalent surface appearance, modulus and over 80% of the strength of UD prepreg.
Special slit pattern to be installed onto UD prepreg.
Homogeneous Laminate structure
Solutions
ET40 is made by introducing slits into UD prepreg in a controlled manner, creating a type of unidirectional SMC material in which fiber bundles are regularly arrayed in the same direction. This method allows for the consistent and regular flow of the bundles during the molding process and therefore results in the ability to be shaped into complex shapes, such as rib and deep-drawing, while maintaining a homogenous laminate structure due to its extensible and transformable nature. As a result of specific slitting patterns, ET40 is able to achieve the equivalent surface appearance, modulus and over 80% of the strength of UD prepreg.
3D shaping by compression molding
Reinforcement for metal structure
Mechanical Propertied sfter stretch mold (Isotropic flow)
In quasi-isotropic stacking sequence, ET40 has no declining in tensil modulus, in spite of the slits introduced into each ply.
Decreases of tensile strength and impact strength of ET40 are only 20% approximately.
Applicable Prepreg
Any type of UD prepreg and resin system can be applicable for ET40.
3 types of rapid cure resin system are available for compression molding with ET40.
来源：日本东丽官网，碳纤维生产技术整理。
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