摘要
聚丙烯长丝土工织物在土木、水利、环保等工程领域中具有防渗、隔离、增强等重要作用。但是,在实际的工程使用中,由于外界环境的侵蚀,聚丙烯长丝土工织物易发生老化降解现象,严重限制其使用性能和寿命。因此,对聚丙烯长丝土工织物的耐久性进行研究具有重要应用价值。系统地总结了聚丙烯长丝土工织物在耐热氧老化、耐光氧老化、耐酸碱性和抗冻融等方面的特性,发现,该材料存在热稳定性较差、抗紫外线能力较低等问题。虽然可通过添加抗氧化剂、光稳定剂等显著提高土工织物的耐热氧性能和耐光氧性能,但是,仍存在不了解相关作用机理、加入添加剂造成制备成本高、加工困难等问题。基于此,需进行更深入的耐久性机理研究,为材料的改进和优化提供理论指导;寻找并开发低成本、易加工的方法,制备高性能耐久型聚丙烯长丝土工织物,推动该领域的持续发展。
Polypropylene filament geotextile plays a crucial role in the civil engineering,water conservancy,environmental protection,and other engineering fields,as these materials provide essential functions such as seepage prevention,isolation,and reinforcement.However,polypropylene filament geotextile is prone to aging and degradation due to the erosion of the external environment,which seriously affects material's performance and service life.Therefore,studying the durability of polypropylene filament geotextile has greatly practical value.Through systematically summarizes of the performances of polypropylene filament geotextiles,including thermal and photo-oxygen aging,chemical corrosion,and freeze-thaw resistance,it has been found that such material exhibits poor thermal stability and low ultraviolet resistance.Although the addition of antioxidants and light stabilizers can considerably improve the thermal oxygen aging and photooxidation resistance of geotextiles,there are some unavoidable disadvantages,such as unclear protection mechanisms,high costs,and processing difficulties.Based on this,future researches will focus on in-depth mechanism study,providing theory instructions for material processing;and developing cost-effective and easy-to-process methods for the production of highperformance and durable polypropylene filament geotextiles.
作者
庄亚芳
武鹏
者东梅
ZHUANG Yafang;WU Peng;ZHE Dongmei(Sinopec(Beijing)Chemical Research Institute Co.,Ltd.,Beijing 100013,China)
出处
《塑料》
CAS
CSCD
北大核心
2023年第3期126-129,134,共5页
Plastics
关键词
聚丙烯长丝土工织物
耐久性
耐热氧老化
耐光氧老化
耐化学腐蚀
抗冻融
polypropylene filament geotextile
durability
thermal oxygen aging
photo-oxidation aging
chemical resistance
freeze-thaw resistance
