Preparation and Action Mechanism of Inclusion Complex of β-Cyclodextrin and Dibutyl Phosphite as Additives in Solution of Polyethylene Glycol-600

Zhong Ya Li; Shui Quan Huang; Ji Ju Guan; Xue Feng Xu

doi:10.4028/www.scientific.net/AMM.757.19

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 757Preparation and Action Mechanism of Inclusion...

Preparation and Action Mechanism of Inclusion Complex of β-Cyclodextrin and Dibutyl Phosphite as Additives in Solution of Polyethylene Glycol-600

Abstract:

The inclusion complex of β-cyclodextrin (β-CD) and dibutyl phosphite (T304) was prepared by trituration. The tribological properties of the complex with different concentrations were investigated by a four-ball tester in the solution of polyethylene glycol-600 (PEG-600). The tribological test results showed that the complex exhibited better anti-friction and anti-wear properties than β-CD under different loads, and it was noted that the tribo-system showed the least friction coefficient when the concentration of the complex was 0.9%. It was proposed that the complex was decomposed into various molecular fragments and the T304 molecules were released under the friction condition. The XPS analytical results on the worn surfaces revealed that phosphide film formed by the released T304 played a major role and the iron alkoxide and carbon deposition films formed by the β-CD fragments had better anti-friction effect on the phosphide film surface. The interactions of different films resulted in the formation of a mixed boundary lubrication film.

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Periodical:

Applied Mechanics and Materials (Volume 757)

Pages:

19-24

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.757.19

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Online since:

April 2015

Authors:

Zhong Ya Li*, Shui Quan Huang, Ji Ju Guan, Xue Feng Xu

Keywords:

Action Mechanism, Complex, Sulfurized Isobutylene, Tribological Properties, β-Cyclodextrin

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