FORMULATION, RHEOLOGY AND THERMAL AGING OF POLYMER GREASES

被引：0
作者：
Goncalves, David [1 ]
Campos, Armando [2 ,3 ]
Graca, Beatriz [1 ]
Seabra, Jorge
机构：
[1] Univ Porto, Fac Engn, INEGI, Rua Dr Roberto Frias S-N, P-4200465 Oporto, Portugal
[2] Inst Politecn Porto, Inst Super Engn, ISEP IPP, Oporto, Portugal
[3] Univ Porto, Fac Engn, FEUP, P-4100 Oporto, Portugal
来源：
M2D2015: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN | 2015年
关键词：
polypropylene; rheology; grease degradation; LUBRICATING GREASE; BEARING TESTS; DEGRADATION; BEHAVIOR; MICROSTRUCTURE; OXIDATION; MODEL; FLOW;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The aim of this work is to show the correlation between polymer greases' rheology and its formulation. The tested polypropylene (PP) thickened greases were evaluated regarding their thickener content and its effect on the rheological properties. An artificial aging procedure was performed by heating fresh grease samples in an oven, to study the thermal degradation. The aging evaluation was performed through rheological measurements, FT-IR spectra, oil loss, bleed-oil viscosity changes and bleed rate. The rheology measurements were performed on a rotational rheometer, emphasising on the storage and loss moduli values at the Linear Visco-Elastic (LVE) region.
引用
收藏
页码：1999 / 2012
页数：14
相关论文
共 28 条
  • [1] [Anonymous], 1988, THEORY POLYM DYNAMIC
  • [2] [Anonymous], LUBRIC ENG
  • [3] Oil-Bleeding Model for Lubricating Grease Based on Viscous Flow Through a Porous Microstructure
    Baart, Pieter
    van der Vorst, Bas
    Lugt, Piet M.
    van Ostayen, Ron A. J.
    [J]. TRIBOLOGY TRANSACTIONS, 2010, 53 (03) : 340 - 348
  • [4] The high pressure rheology of polymer-oil solutions
    Bair, S
    Qureshi, F
    [J]. TRIBOLOGY INTERNATIONAL, 2003, 36 (08) : 637 - 645
  • [5] Bill M., 1968, U.S. Patent, Patent No. [3,392,119, 3392119]
  • [6] Grease degradation in R0F bearing tests
    Cann, P. M.
    Webster, M. N.
    Doner, J. P.
    Wikstrom, V.
    Lugt, P.
    [J]. TRIBOLOGY TRANSACTIONS, 2007, 50 (02) : 187 - 197
  • [7] Grease degradation in rolling element bearings
    Cann, PM
    Doner, JP
    Webster, MN
    Wikstrom, V
    [J]. TRIBOLOGY TRANSACTIONS, 2001, 44 (03) : 399 - 404
  • [8] Canter N, GREASE ADDITIVES IMP
  • [9] CARRE DJ, 1983, ASLE TRANS, V26, P475
  • [10] OXIDATIVE-DEGRADATION OF PHOSPHATE-ESTERS
    CHO, L
    KLAUS, EE
    [J]. ASLE TRANSACTIONS, 1981, 24 (01): : 119 - 124
123