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首页> 外文期刊>Composite Structures >Thermoplastic polyester elastomer composites containing two types of filler particles with different dimensions: Structure design and mechanical property control
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Thermoplastic polyester elastomer composites containing two types of filler particles with different dimensions: Structure design and mechanical property control

机译：包含两种尺寸不同的填料颗粒的热塑性聚酯弹性体复合材料：结构设计和机械性能控制

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摘要

Particle reinforcement is a common approach to improve mechanical properties of thermoplastic polyester elastomer (TPEE). The improvement of strength is commonly accompanied by an evident increase of Young's modulus, which is against the usage of TPEE as the elastomer material, however. The high-strength TPEE composites with low modulus are preferred. A composite particle technology was developed here to modify TPEE. Two-dimensional graphene nanoplatelets (GNP) and three-dimensional slag particles were bonded by pretreatment, and then mixed with TPEE. In this case, the Young's modulus decreased by about 20% relative to the composite containing simply mixed particles. On the other hand, the former showed an evident increase of yielding strength by about 40% relative to TPEE, while the latter only by about 10%. The mechanism was then proposed in terms of alteration of closely packed structure of particles. This work opens a new door for structure and property design of polymer composites.
机译：颗粒增强是改善热塑性聚酯弹性体（TPEE）机械性能的常用方法。强度的提高通常伴随着杨氏模量的明显增加，这与使用TPEE作为弹性体材料相反。具有低模量的高强度TPEE复合材料是优选的。在此开发了一种复合粒子技术来修改TPEE。通过预处理将二维石墨烯纳米片（GNP）和三维渣颗粒结合在一起，然后与TPEE混合。在这种情况下，相对于仅包含混合颗粒的复合材料，杨氏模量下降了约20％。另一方面，前者相对于TPEE表现出明显的屈服强度增加约40％，而后者仅增加约10％。然后就改变紧密堆积的颗粒结构提出了机理。这项工作为聚合物复合材料的结构和性能设计打开了新的大门。

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