The present invention provides a laminated expanded sheet excellent in strength and formability. More specifically, the present invention relates to a laminated expanded sheet comprising a laminate of a resin expanded layer and a resin non-expanded layer, wherein the resin expanded layer is provided as an outermost layer, the laminated expanded sheet has a bending strength of 5 MPa or more, and an arithmetic average roughness of a surface formed of the resin expanded layer is 3 µm or more and 10 µm or less.
本发明提供了一种强度和成型性极佳的层压膨胀板。更具体地说,本发明涉及一种由
树脂膨胀层和
树脂非膨胀层层压而成的层压膨胀板,其中
树脂膨胀层作为最外层,层压膨胀板的弯曲强度为 5 兆帕或以上,
树脂膨胀层形成的表面的算术平均粗糙度为 3 微米或以上、10 微米或以下。