Wear and friction properties of engineering thermoplastics with ultra-high molecular weight polyethylene
View Patent ↗Disclosed herein are compositions comprising a polymer comprising polyetherimide, polyetheretherketone, polyamide, polyoxyalkylene, or polyalkylene terephthalate, or a mixture thereof, and ultra-high molecular weight polyethylene, wherein the ultra-high molecular weight polyethylene comprises a surface modifier. Also disclosed are articles comprising one or more of the described compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
1. A composition, comprising:
(a) from about 30% by weight to about 97% by weight of polymer, wherein the polymer comprises polyetherimide, polyetheretherketone, polyamide, polyoxyalkylene, polyalkylene terephthalate, or a mixture thereof; and
(b) from about 3% by weight to about 30% by weight ultra-high molecular weight polyethylene, wherein the ultra-high molecular weight polyethylene comprises above 0% by weight to about 10% by weight of a surface modifier, wherein the surface modifier comprises a halogen.
2. The composition of claim 1 , wherein the composition further comprises from about 10% by weight to about 60% by weight reinforcement agent.
3. The composition of claim 1 , wherein the reinforcement agent comprises glass or carbon fiber.
4. The composition of claim 1 , wherein the halogen is fluorine or chlorine.
5. The composition of claim 1 , wherein the surface modifier further comprises a carboxyl, hydroxyl, or carbonyl moiety, or a combination thereof.
6. The composition of claim 1 , wherein the ultra-high molecular weight polyethylene comprises from about 0.01% by weight to 0.5% by weight of the surface modifier.
7. The composition of claim 1 , wherein the polymer is polyetherimide.
8. The composition of claim 1 , wherein the polymer is polyetheretherketone.
9. The composition of claim 1 , wherein the polymer is a polyalkylene terephthalate.
10. The composition of claim 1 , wherein the polymer is a polyoxyalkylene.
11. The composition of claim 1 , wherein the composition comprises from about 10% by weight to about 20% by weight ultra-high molecular weight polyethylene.
12. The composition of claim 1 , wherein the composition comprises from about 10% by weight to about 60% by weight reinforcement agent, from about 10% by weight to about 20% by weight ultra-high molecular weight polyethylene, and from about 30% by weight to about 80% by weight of the polymer comprising polyetherimide, polyetheretherketone, polyamide, polyoxyalkylene, or polyalkylene terephthalate, or a mixture thereof.
13. The composition of claim 1 , wherein the composition has a wear factor of less than about 50 as determined by a test according to ASTM D3702 at about 120 psi and about 100 ft/min.
14. The composition of claim 1 , wherein the composition has a pressure-velocity at failure of between about 150,000 PV and about 300,000 PV using the General Motors Powertrain limiting pressure-velocity test protocol, sequence B.
15. A composition comprising:
(a) from about 30% by weight to about 97% by weight of polymer, wherein the polymer comprises polyetherimide, polyetheretherketone, polyoxyalkylene, polyalkylene terephthalate, or a mixture thereof; and
(b) from about 3% by weight to about 30% by weight ultra-high molecular weight polyethylene, wherein the ultra-high molecular weight polyethylene comprises above 0% by weight to about 10% by weight of a surface modifier.
16. The composition of claim 15 , wherein the composition further comprises from about 10% by weight to about 60% by weight reinforcement agent.
17. The composition of claim 15 , wherein the reinforcement agent comprises carbon fiber or glass fiber.
18. The composition of claim 15 , wherein the surface modifier comprises fluorine or chlorine.
19. The composition of claim 15 , wherein the surface modifier further comprises a carboxyl, hydroxyl, or carbonyl moiety, or a combination thereof.
20. The composition of claim 15 , wherein the ultra-high molecular weight polyethylene comprises from about 0.01% by weight to 0.5% by weight of the surface modifier.
21. The composition of claim 15 , wherein the polymer is polyetherimide.
22. The composition of claim 15 , wherein the polymer is polyetheretherketone.
23. The composition of claim 15 , wherein the polymer is a polyalkylene terephthalate.
24. The composition of claim 15 , wherein the polymer is a polyoxyalkylene.
25. The composition of claim 15 , wherein the composition comprises from about 10% by weight to about 20% by weight ultra-high molecular weight polyethylene.
26. The composition of claim 15 , wherein the composition comprises from about 10% by weight to about 60% by weight reinforcement agent, from about 10% by weight to about 20% by weight ultra-high molecular weight polyethylene, and from about 30% by weight to about 80% by weight of the polymer comprising polyetherimide, polyetheretherketone, polyamide, polyoxyalkylene, or polyalkylene terephthalate, or a mixture thereof.
27. The composition of claim 15 , wherein the composition has a wear factor of less than about 50 as determined by a test according to ASTM D3702 at about 120 psi and about 100 ft/min.
28. The composition of claim 15 , wherein the composition has a pressure-velocity at failure of between about 150,000 PV and about 300,000 PV using the General Motors Powertrain limiting pressure-velocity test protocol, sequence B.