申请人:TORAY INDUSTRIES, INC.
公开号:EP0432997A2
公开(公告)日:1991-06-19
A fiber-reinforced foamed material comprises a foamed body of a resin having a flexural elasticity modulus not smaller than 150 kg/mm², reinforcement fibers, and a bonding component through which the reinforcement fibers are integrated with the foamed body so as to reinforce the foamed body.
A method for producing a fiber-reinforced foamed material comprises the steps of: providing a material having a potential foamability; providing a composite fibrous material in the form of composite fibers and/or composite yarns each having a first component and a second component; and allowing the foamable material to foam together with the composite fibers or composite yarns at a temperature 10°C or more higher than the thermal deformation temperature or melting temperature of the first component and 20°C or more lower than the thermal deformation temperature or melting temperature of the second component, whereby the first component is thermally deformed or melted to serve as a bonding component, while the second component remains as a fibrous reinforcement component, the fibrous reinforcement component being integrated with the foamed body through the bonding component so as to reinforce the foamed body.
一种纤维增强发泡材料包括由树脂制成的发泡体(其弯曲弹性模量不小于 150 kg/mm²)、增强纤维和粘合部件,通过粘合部件,增强纤维与发泡体结合,从而增强发泡体。
生产纤维增强发泡材料的方法包括以下步骤提供一种具有潜在发泡性的材料; 提供一种复合纤维材料,其形式为复合纤维和/或复合纱线,每种纤维都具有第一组分和第二组分;使可发泡材料与复合纤维或复合纱线一起在高于第一组分的热变形温度或熔化温度 10°C 或更高,以及低于第二组分的热变形温度或熔化温度 20°C 或更高的温度下发泡,其中第一组分被热变形或熔化以作为粘合组分,而第二组分仍作为纤维增强组分,纤维增强组分通过粘合组分与发泡体结合以增强发泡体。