TY - GEN
T1 - Tribological and mechanical properties of polyimide composites filled with OTS self-assembled monolayers treated potassium titanate whiskers
AU - Zhu, Jiahua
AU - Shi, Yijun
AU - Feng, Xin
AU - Wang, Huaiyuan
AU - Lu, Xiaohua
PY - 2008
Y1 - 2008
N2 - The effect of surface modification of potassium titanate whisker (PTW) on tribological and mechanical properties of PTW/polyimide (PI) composites was studied. Three different agents were used to change the nature of the surface of the PTW. (i) n-octadecyltrichlorosilane (OTS); (ii) Silane coupling agent (KH-560); (iii) Fluoric surfactant (FSK). Tribological and mechanical behaviors of neat PI, PTW (untreated)/PI, PTW (OTS)/PI, PTW (KH-560)/PI and PTW (FSK)/PI were comparatively investigated. Results show that both the mechanical strength (tensile strength, elongation-to-break, impact strength) and the anti-wear performance of PTW/PI composites were remarkably improved after OTS treatment. In comparison with the mechanical properties of PTW (untreated)/PI composites, the tensile strength, elongation-to-break and impact strength of PTW (OTS)/PI composite increased by 16%, 37% and 107%, respectively. Also, wear volume loss of PTW (OTS)/PI composite decreased by 35% over PTW (untreatedyPI composite. In addition, the lowest stable friction coefficient and the shortest running-in time were observed for OTS treated composite. Scanning electron microscopy showed that composites reinforced with OTS and FSK treated PTW were favorable for forming smooth and continuous transfer films. Thermogravimetric analysis revealed that degradation temperature (TD) of PTW (OTS)/PI and PTW (FSK)/PI improved by 7.6 °C and 9.7°C, respectively, when comparing to PTW (untreated)/PI composite.
AB - The effect of surface modification of potassium titanate whisker (PTW) on tribological and mechanical properties of PTW/polyimide (PI) composites was studied. Three different agents were used to change the nature of the surface of the PTW. (i) n-octadecyltrichlorosilane (OTS); (ii) Silane coupling agent (KH-560); (iii) Fluoric surfactant (FSK). Tribological and mechanical behaviors of neat PI, PTW (untreated)/PI, PTW (OTS)/PI, PTW (KH-560)/PI and PTW (FSK)/PI were comparatively investigated. Results show that both the mechanical strength (tensile strength, elongation-to-break, impact strength) and the anti-wear performance of PTW/PI composites were remarkably improved after OTS treatment. In comparison with the mechanical properties of PTW (untreated)/PI composites, the tensile strength, elongation-to-break and impact strength of PTW (OTS)/PI composite increased by 16%, 37% and 107%, respectively. Also, wear volume loss of PTW (OTS)/PI composite decreased by 35% over PTW (untreatedyPI composite. In addition, the lowest stable friction coefficient and the shortest running-in time were observed for OTS treated composite. Scanning electron microscopy showed that composites reinforced with OTS and FSK treated PTW were favorable for forming smooth and continuous transfer films. Thermogravimetric analysis revealed that degradation temperature (TD) of PTW (OTS)/PI and PTW (FSK)/PI improved by 7.6 °C and 9.7°C, respectively, when comparing to PTW (untreated)/PI composite.
KW - Mechanical properties
KW - N-octadecyltrichlorosilane
KW - Polyimide
KW - Potassium titanate whisker
KW - Tribological properties
UR - http://www.scopus.com/inward/record.url?scp=84887560581&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84887560581
SN - 9784901381321
T3 - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
SP - 123
EP - 126
BT - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
T2 - 6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008
Y2 - 23 September 2008 through 26 September 2008
ER -