摘要
通过熔融共混制备了热塑性聚氨酯(TPU)/尼龙6(PA6)复合材料,利用摩擦实验研究了PA6及其复合材料的高载荷磨损性能。结果表明,纯PA6在摩擦过程中不能形成转移膜,短时间内被磨穿,TPU/PA6复合材料由于形成稳定的转移膜,大幅度提高了其在高载荷下的耐磨性。材料磨损面的扫描电子显微镜(SEM)分析结果表明,纯PA6在高载荷下的磨损机理以疲劳磨损和粘着磨损为主,TPU/PA6复合材料的磨损机理主要表现为粘着磨损、疲劳磨损及氧化磨损。
Thermoplastic polyurethane（TPU）/polyamide6（PA6） composites were prepared via melt blending.Wear properties of neat PA6 and TPU/PA6 composites under high-loads were investigated by wear tester.Results show that neat PA6 is worn out easily due to the absence of transfer film,while the wear resistance of TPU/PA6 composites is greatly improved owing to the formation of transfer film.Moreover,worn surfaces of PA6 and TPU/PA6 composite were studied using scanning electron microscope（SEM）.Results indicate that the wear mechanism of neat PA6 is mainly fatigue wear and adhesion wear,while TPU/PA6 composite is mainly characterized with adhesion wear,fatigue wear and oxidation wear.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2011年第4期92-94,98,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50673030)
福建省自然科学基金资助项目(2009J05131)
