IP Library Granted Patent US 9,243,204
Granted Patent B2
US 9,243,204 · App. 14/511,853 · Granted Jan 26, 2016

Wear resistant lubricious composite

Inventors: Wallace Gregory Sawyer (Gainesville, FL); Ben Peter Boesi (Gainesville, FL); Nicole Lee McCook (Gainesville, FL); David L. Burris (Gainesville, FL)
Assignee: University of Florida Research Foundation, Inc.
C10M169/044F16C33/201C10M2201/061C10M2201/062C10M2201/065C10M2201/066C10M2209/1045C10M2213/02C10M2213/062C10N2210/02C10N2210/06C10N2220/082C10N2230/06C10N2250/18Y10T428/31678
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Quick Facts
Patent No.
US 9,243,204
App. No.
14/511,853
Granted
Jan 26, 2016
Kind
B2
Abstract

A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.

Claims (17)

1. A wear resistant lubricious composite, comprising:

a continuous phase synthetic resin binder, wherein the continuous phase resin binder does not include a photo-initiator;

a plurality of transfer film forming particles; and

a plurality of hard nanoparticles,

wherein the transfer film forming particles and the hard nanoparticles are distributed in the continuous phase synthetic resin binder.

2. The composition of claim 1 , wherein the transfer film forming particles comprise PTFE.

3. The composition of claim 2 , wherein the PTFE particles comprise PTFE nanoparticles.

4. The composite of claim 1 , wherein the continuous phase synthetic resin is an epoxy resin, and the hard nanoparticles comprise zinc oxide nanoparticles.

5. The composite of claim 4 , wherein the transfer film forming particles comprise PTFE and the composite comprises 60 and 85 volume % epoxy resin, 12 to 17 vol. % PTFE and 0.8 to 5 volume % zinc oxide nanoparticles.

6. The composition of claim 1 , wherein a wear rate of the composite is <1×10 −6 mm 3 /Nm and a friction coefficient of the composite is <0.2.

7. The composition of claim 1 , further comprising a base metal article, wherein the composition is disposed on the base metal article.

8. The composition of claim 1 , wherein the hard nanoparticles are selected from the group consisting of a metal oxide nanoparticle, a metal carbide nanoparticle and a metal nitride nanoparticle.

9. The composition of claim 8 , wherein the continuous phase synthetic resin binder is 80-99 volume % of the composition; wherein the plurality of transfer film forming particles is 1-18 volume % of the composition; the plurality of hard nanoparticles is 0.5-10 volume % of the composition.

10. The composition of claim 1 , wherein the transfer film forming particles are selected from the group consisting of a PTFE particle, a WS 2 nanoparticle, a MoS 2 nanoparticle, a boron nitride nanoparticle, and a fluorinated ethylene propylene nanoparticle.

11. The composition of claim 10 , wherein the continuous phase synthetic resin binder is 80-99 volume % of the composition; wherein the plurality of transfer film forming particles is 1-18 volume % of the composition; the plurality of hard nanoparticles is 0.5-10 volume % of the composition.

12. The composition of claim 1 , wherein the continuous phase synthetic resin binder is 80-99 volume % of the composition; wherein the plurality of transfer film forming particles is 1-18 volume % of the composition; the plurality of hard nanoparticles is 0.5-10 volume % of the composition.

13. The composition of claim 1 , wherein the continuous phase synthetic resin binder is selected from the group consisting of: a polyamide resin, a polyamide-imide resin, polybenzimidazole resin, an epoxy resin, and a phenolic resin.

Assignments (2)
CONFIRMATORY LICENSE Recorded Mar 30, 2016
From: UNIVERSITY OF FLORIDA
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 038299/0543 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2015
From: SAWYER, WALLACE GREGORY; BOESL, BENJAMIN PETER; MCCOOK, NICOLE LEE; BURRIS, DAVID L.
To: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
Reel/Frame 036688/0921 →
Continuity (3)
Continuation 13017570 · Jan 31, 2011
Continuation 11385062 · Mar 21, 2006
Related Publication 20150051122A1 · Feb 19, 2015