کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
618830 | 1455050 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Friction and wear behaviour of electron beam modified PTFE filled EPDM compounds
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The friction and wear of non-modified and electron beam modified polytetrafluoroethylene (PTFE) filled ethylene-propylene-diene-monomer (EPDM) rubber investigated with the help of pin on disk tribometer showed different behaviour during the sliding contact with hard spherical steel-ball. The friction coefficient (μ) and specific wear rate (k) of modified PTFE filled EPDM increased with an absorbed dose of PTFE powder while non-modified PTFE filled EPDM showed the lowest μ and k values. This variation in friction and wear behaviour of PTFE filled EPDM compounds is caused by the influence of radiation induced chemical changes in PTFE powder on the radical initiated peroxide crosslinking. It results from the lower crosslinking efficiency and consequently in the deterioration of the bulk properties. The electron modification of PTFE powder reduces the hardness (modulus) and increases the energy dissipation (tan delta) of compounds. Beside other factors, these variations in bulk properties have been shown to have deleterious effects on the friction and wear properties of electron beam modified PTFE filled EPDM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 266, Issues 1â2, 5 January 2009, Pages 175-183
Journal: Wear - Volume 266, Issues 1â2, 5 January 2009, Pages 175-183
نویسندگان
M. Sohail Khan, R. Franke, U. Gohs, D. Lehmann, G. Heinrich,