Processing and flexural properties of surface reinforced flat pressed WPC panels
Processing and flexural properties of surface reinforced flat pressed WPC panels
复制标题
表面增强平压木塑板的加工和弯曲性能
DOI：
10.1007/s00107-013-0719-y
复制
发表时间：
2013
影响因子：
2.6
通讯作者：
H. Thoemen
中科院分区：
文献类型：
--
作者：
H. Schmidt;J. Benthien;H. Thoemen
虽然挤出成型和注塑成型是生产木塑复合材料（WPC）的常用技术，但压制可能是一种替代方法，特别是在追求扁平产品时。在这项研究中，平压WPC板表面增强两种不同类型的热塑性面层，以提高弯曲性能。所应用的两种表面材料是由玻璃和聚丙烯长丝制成的混合织物（TWINTEX®）和玻璃织物增强聚丙烯层压材料（S-TEX®）。面层和WPC面板的结合是在单级和两级平压工艺中实现的。除了研究增强材料和工艺阶段数的影响外，还确定了对增强板弯曲性能的影响。对未增强的WPC板进行了测试以进行比较。增强的WPC板表现出极大改善的弯曲性能，其中莫伊（莫尔）值高达近10，000 N/mm²（90 N/mm²）。
While extrusion and injection molding are the common technologies to produce wood-plastic composites (WPC), pressing may be an alternative, particularly when flat products are striven for. In this study, flat pressed WPC panels were surface-reinforced by two different types of thermoplastic face layers to improve flexural properties. The two face materials applied were a commingled fabric made of glass and polypropylene filaments (TWINTEX®) and a glass fabric reinforced polypropylene laminate (S-TEX®). Combination of face layers and WPC panels was achieved in a single and a two stage flat pressing process. Besides studying the effects of reinforcing material and number of process stages, the influence on flexural properties of the reinforced panels was identified. Unreinforced WPC panels were tested for comparison. The reinforced WPC panels exhibited greatly improved flexural properties, with MOE (MOR) values up to nearly 10,000 N/mm² (90 N/mm²).