合成纤维

2022, v.51;No.405(11) 74

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东丽完成熔喷非织造材料扩能
Influence of Rice Husk Ash and Assorted Fibers on Ultra High Performance Concrete

钱伯章
WANG Xiao-long

摘要(Abstract):

<正>2022年9月26日,东丽宣布旗下子公司——东丽纺织中欧公司(TTCE)和东丽先进材料韩国公司(TAK)已完成位于捷克普罗斯特霍夫新工厂项目建设,这将扩大该集团在欧洲的Airlite汽车内饰隔音材料业务。东丽表示,Airlite产品是一种熔喷法非织造吸音材料,由轻质聚丙烯和聚酯制成。这种材料通过抑制来自驾驶、振动和外部车辆的噪音来提高乘客的舒适度。TTCE位于捷克的新工厂于2022年10月投产,年产能为1 200 t。新设施将补充TTCE的安全气囊织物业务,有助于扩大汽车材料业务。
Ultra high performance concrete(UHPC) has excellent mechanical properties and durability, and can reduce the dead weight of the structure and reduce the amount of materials used, so it has a broad application prospect. However, a lot of materials are used in UHPC such as ultra-fine silica fume and steel fiber,and the cost is high. The rice husk ask is selected to replace an appropriate amount of silica fume, and thepolypropylene fiber, basalt fiber and steel fiber are selected to mix. The influence of rice husk ash and assorted fibers on UHPC is analyzed by testing the fluidity, compressive strength, flexural strength, crack initiation strength, crack initiation deflection and chloride ion diffusion coefficient of UHPC. The results show that rice husk ash is a cheap mineral admixture with excellent performance, the appropriate proportion of which instead of silica fume can improve the fluidity of UHPC to a certain extent, increase its mechanical strength and dynamic elastic modulus, and improve the crack initiation strength and durability. Assorted fibers failed to make UHPC achieve the expected mechanical strength and durability, but improved the crack resistance of UHPC.

关键词(KeyWords):
ultra-high performance concrete;rice husk ash;polypropylene fiber;basalt fiber■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 钱伯章
WANG Xiao-long

DOI: 10.16090/j.cnki.hcxw.2022.11.021

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