Synthesis and Properties of Syndiotactic Poly(propylene)/Carbon Nanofiber and Nanotube Composites Prepared by in situ Polymerization with Metallocene/MAO Catalysts

2005 ◽  
Vol 206 (15) ◽  
pp. 1472-1478 ◽  
Author(s):  
Katharina Wiemann ◽  
Walter Kaminsky ◽  
Florian H. Gojny ◽  
Karl Schulte
Keyword(s):  
Carbon Nanofiber ◽  
In Situ Polymerization ◽  
Nanotube Composites ◽  
Poly Propylene ◽  
Propylene Carbon

Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

2011 ◽  
Vol 299-300 (1) ◽  
pp. 48-56 ◽  
Author(s):  
Larissa Stieven Montagna ◽  
Fabiana de Carvalho Fim ◽  
Griselda Barrera Galland ◽  
Nara Regina de Souza Basso
Keyword(s):  
In Situ Polymerization ◽  
Poly Propylene ◽  
Graphite Nanocomposites

scholarly journals Hollow IF-MoS2/r-GO Nanocomposite Filled Polyimide Coating with Improved Mechanical, Thermal and Tribological Properties

Coatings ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 25
Author(s):  
Jian Wu ◽  
Xiang Yin ◽  
Liwen Mu ◽  
Xin Feng ◽  
Xiaohua Lu ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Carbon Nanofiber ◽  
In Situ Polymerization ◽  
Protective Film ◽  
Inorganic Fullerene ◽  
Reduced Graphene ◽  
Polyimide Coating ◽  
Frictional Interface

Polyimide (PI) is one of the most excellent polymers for coating. However, the high friction coefficient and the high wear rate of pure PI limit its further applications. In this work, the hollow inorganic fullerene-like MoS2/reduced graphene oxide (HIF-MoS2/r-GO) nanocomposite filled PI coating is prepared by in situ polymerization. Reinforcement in mechanical strength and thermal stability is realized on the PI composite coating with incorporation of HIF-MoS2/r-GO, which performs better than carbon nanofiber (CNF). Reduced elastic modulus and hardness of HIF-MoS2/r-GO/PI coating is increased by 8.3% and 4.8%, respectively. The addition of HIF-MoS2/r-GO also results in 24% higher residual mass at 800 °C than CNF. Tribological study indicates that, HIF-MoS2/r-GO/PI achieves a wear rate reduction of 79% compared with pure PI under dry sliding condition, which is much more effective than other nanofillers including CNF, r-GO nanosheets and MoS2 nanoparticles. Under ionic liquid-lubricated condition, the presence of HIF-MoS2/r-GO in PI results in a 30% reduction in wear rate and 10% reduction in friction coefficient as compared to pure PI. It is thought that the HIF-MoS2/r-GO in PI can be slowly released to the frictional interface and form a protective film during sliding, in this way the aggregation problem is successfully solved.

Poly(propylene)/Carbon Nanofiber Nanocomposites: Ex Situ Solvent-Assisted Preparation and Analysis of Electrical and Electronic Properties

2011 ◽  
Vol 296 (5) ◽  
pp. 434-443 ◽  
Author(s):  
Xuelong Chen ◽  
Suying Wei ◽  
Atarsingh Yadav ◽  
Rahul Patil ◽  
Jiahua Zhu ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Carbon Nanofiber ◽  
Ex Situ ◽  
Poly Propylene ◽  
Propylene Carbon

Synthesis, characterization and properties of poly(propylene-1-octene)/graphite nanosheet nanocomposites obtained by in situ polymerization

Polymer ◽  
2015 ◽  
Vol 65 ◽  
pp. 134-142 ◽  
Author(s):  
Marcéo A. Milani ◽  
Darío González ◽  
Raúl Quijada ◽  
Rosario Benavente ◽  
Javier Arranz-Andrés ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Graphite Nanosheet ◽  
Poly Propylene
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