Mechanical properties of potassium titanate whiskers reinforced poly(ether ether ketone) composites using different compounding processes

Zhuang, Guoqing; Sui, Guoxin; Meng, Haiming; Sun, Zhizeng; Yang, Rui

doi:10.1016/j.compscitech.2006.05.011

Cited by 64 publications

(30 citation statements)

References 22 publications

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“…It is seen that the stiffness and strength of the PEEK composites were significantly enhanced by the incorporation of the PTW. It is believed that the PTW was efficient reinforcement for PEEK [21]. However, the tensile ductility and impact toughness of the composites decreased with the PTW content increasing.…”

Section: Mechanical and Crystallization Behaviorsmentioning

confidence: 88%

The Effect of Applied Load on Tribological Behaviors of Potassium Titanate Whiskers Reinforced PEEK Composites Under Water Lubricated Condition

2010

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The tribological behavior of potassium titanate whiskers (PTW) reinforced polyetheretherketone (PEEK) composite has been investigated using the pin-on-disk configuration at different applied loads under water lubricated condition. It was found that the incorporation of the PTW into PEEK would achieve high wear resistance and low friction coefficient at low load. When the applied load increased up to 4 MPa, only the composite filled with 5 wt% PTW showed a significant improvement in the frictional reduction and wear resistance; on the contrary, a rapid increasing of the friction coefficient was observed for the composites of high PTW content. In the meantime, the severe wear loss occurred along with the sharply increasing temperature. This sudden deterioration of the wear resistance should be attributed to the change of the wear mechanism. The main wear mechanism of mild fatigue for the neat PEEK and mild abrasive wear for the 5 wt% PTW filled composite did not alter with the rising of the load. In this case, no transfer film could be detected on the counterpart surface. However, for the high PTW filled composites, the wear mechanism changed from the mild abrasive wear at low applied load to the severe fatigue wear at high load. Large amounts of wear debris were generated by the fatigue-delamination of the composite surface. And then, the debris served as third-body abrasives during the subsequent sliding process and the wear mechanism changed to severe abrasive wear. And unexpectedly, a thick and lumpy transfer film was formed on the counterface.

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Section: Mechanical and Crystallization Behaviorsmentioning

confidence: 88%

The Effect of Applied Load on Tribological Behaviors of Potassium Titanate Whiskers Reinforced PEEK Composites Under Water Lubricated Condition

2010

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“…[1][2][3][4][5] When the polymer matrix must withstand high mechanical and tribological load, it is usually reinforced with various fillers, such as clay, [6] carbon nanotubes (CNTs), [7] mesoporous silica, [8] grapheme, [9] fibers, [10] or inorganic nanoparticles. [11,12] Among these reinforcing elements, fiberbased fabrics are very unique and outstanding because of their high structure ordering and tightness.…”

Section: Introductionmentioning

confidence: 99%

The friction and wear properties of carbon nanotubes/graphite/carbon fabric reinforced phenolic polymer composites

Zhang

Pei

Wang

et al. 2014

Advanced Composite Materials

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In this paper, either graphite (Gr) or carbon nanotubes (CNTs), or both of them were incorporated into carbon fabric reinforced phenolic (CFRP) composites, preparing by a dip-coating and heat molding process, the tribological properties of the resulting composites were investigated using a block-on-ring arrangement. The worn surfaces were observed by scanning electron microscope to understand the mechanism. Experimental results showed that the optimal Gr was more beneficial than CNTs in improving the tribological properties of the CFRP composites when they were singly incorporated. It is well worth noting that the friction and wear behavior of the CNTs-filled CFRP composites were improved further when Gr was added, indicating that there is a synergistic effect between them. Tribological tests under different sliding conditions revealed that the Gr and CNTs-filled CFRP composites seemed to be the most suitable for tribological applications under higher sliding speed and load, and oil lubrication.

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“…Tensile and bend strength tests were carried out according to ASTM D 5938-96 and ASTM D 5943-96 on a T-20A universal testing machine (Shenzhen, China) with crosshead speeds of 5 and 2 mm/min, respectively [16][17][18]. Izod impact tests were carried out on a XJC-5 notched impact tester (Chengde, China) according to ASTM D 5942-96.…”

Section: Mechanical Property Testsmentioning

confidence: 99%

Flame retardation and thermal degradation of intumescent flame‐retarded polypropylene composites containing spirophosphoryldicyandiamide and ammonium polyphosphate

Xiang

Sun

Jiang

et al. 2010

Vinyl Additive Technology

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A novel halogen-free intumescent flame retardant, spirophosphoryldicyandiamide (SPDC), was synthesized and combined with ammonium polyphosphate (APP) to produce a compound intumescent flame retardant (IFR). This material was used in polypropylene (PP) to obtain IFR-PP systems whose flammability and thermal behavior were studied by the limiting oxygen index (LOI) test, UL-94, thermogravimetric analysis, and cone calorimetry. In addition, the mechanical properties of the systems were investigated. The results indicated that the compound intumescent flame retardant showed both excellent flame retardancy and antidripping ability for PP when the two main components of the IFR coexisted in appropriate proportions. The optimum flame retardant formulation was SPDC:APP ¼ 3:1, which gave an LOI value of 38.5 and a UL-94 V-0 rating. Moreover, the heat release rate, production of CO, smoke production rate, and mass loss rate of the IFR-PP with the optimum formulation decreased significantly relative to those of pure PP, according to the cone calorimeter analysis. The char residues from the cone calorimetry experiments were observed by scanning electron microscopy, which showed that a homogeneous and compact intumescent char layer was formed.

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Mechanical properties of potassium titanate whiskers reinforced poly(ether ether ketone) composites using different compounding processes

Cited by 64 publications

References 22 publications

The Effect of Applied Load on Tribological Behaviors of Potassium Titanate Whiskers Reinforced PEEK Composites Under Water Lubricated Condition

The Effect of Applied Load on Tribological Behaviors of Potassium Titanate Whiskers Reinforced PEEK Composites Under Water Lubricated Condition

The friction and wear properties of carbon nanotubes/graphite/carbon fabric reinforced phenolic polymer composites

Flame retardation and thermal degradation of intumescent flame‐retarded polypropylene composites containing spirophosphoryldicyandiamide and ammonium polyphosphate

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