申请人:Stora Enso OYJ
公开号:US11370894B2
公开(公告)日:2022-06-28
The present invention relates to a method of making a foamed cellulosic fiber-thermoplastic composite article. The method includes the steps of providing a copolymer composition, combining the copolymer composition and cellulosic fibers, applying heat, mixing energy and pressure to form a foamable mixture, and forming the foamable article in a molding or extruding operation. The method is characterized in that at least 10% of the cellulosic fibers have been thermally modified prior to being combined with the copolymer composition.
本发明涉及一种发泡纤维素纤维-热塑性复合材料制品的制造方法。该方法包括以下步骤:提供共聚物组合物,将共聚物组合物与纤维素纤维结合,加热、混合能量和压力以形成可发泡混合物,以及在成型或挤压操作中形成可发泡制品。该方法的特征在于,至少有 10%的纤维素纤维在与共聚物组合物结合之前已经过热改性。