Wear resistant lubricious composite

Patent metadata

Field	Value
Publication number	US-9243204-B2
Application number	US-201414511853-A
Country	US
Kind code	B2
Filing date	Oct 10, 2014
Priority date	Mar 21, 2006
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

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.

First claim

Therefore, at least the following is claimed:

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.

Assignees

• Univ Florida

Inventors

• Sawyer Wallace Gregory
• Boesi Ben Peter
• Mccook Nicole Lee
• Burris David L

Classifications

• Y10T428/31678

  Of metal · CPC title

• C10M2201/065

  Sulfides; Selenides; Tellurides · CPC title

• C10M2201/062

  Oxides; Hydroxides; Carbonates or bicarbonates · CPC title

• C10M2201/066

  Molybdenum sulfide · CPC title

• C10N2030/06

  Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title