PREBOARD AND MOLDING AS WELL AS METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a molding with a better mechanical characteristic， a preboard producing the molding， and a method for producing the same. SOLUTION: A molding 20 comprises reinforcement fibers 21， inflatable material 22 filled therebetween， and binding resin 23 binding them. A central part 250 thereof has an area 155 in which a binding resin ratio in total of the reinforcement fibers and the binding resin is higher than that of a front surface part 251 and a rear surface part 252， and the inflatable material 22 is condensed more in the central part 250 rather than the other parts. A preboard comprises reinforcement fibers， heat-inflatable capsules enclosed therebetween， and binding resin binding them. A central part thereof has an area in which a binding resin ratio in total of the reinforcement fibers and the binding resin is higher than that of a front surface part and a rear surface part， and the heat-inflatable capsules are aggregated more in the central part rather than the other parts. A method producing the molding comprises an inflating step of inflating the inflatable capsules enclosed in the preboard and a molding step of producing the molding. SELECTED DRAWING: Figure 1

所要解决的技术问题：提供一种力学性能更优异的成型体（molding）、用于制备该成型体的预成型板（preboard），及其制备方法。
技术方案：本技术方案中的成型体20由增强纤维（reinforcement fibers）、填充于纤维间隙间的可膨胀材料（inflatable material）以及用于粘结各组分的粘结树脂（binding resin）构成。该成型体的中部250设有区域155，其中粘结树脂在增强纤维与粘结树脂总质量中的占比高于其前部251与后部252的占比，且可膨胀材料22在中部250的分布密度高于其余部位。
本技术方案中的预成型板（preboard）由增强纤维（reinforcement fibers）、封装于纤维间隙间的热可膨胀胶囊（heat-inflatable capsules）以及用于粘结各组分的粘结树脂（binding resin）构成。该预成型板的中部设有区域，其中粘结树脂在增强纤维与粘结树脂总质量中的占比高于其前部与后部的占比，且热可膨胀胶囊在中部的聚集程度高于其余部位。
该成型体的制备方法包含两道工序：一是发泡工序，对封装于预成型板内的热可膨胀胶囊进行发泡膨胀；二是成型工序，用于制备目标成型体。
附图说明：图1