These 7 materials can improve the wear resistance of plastics

Some plastics already have good abrasion resistance and can be improved by adding various abrasion-resistant additives. These additives like PTFE, molybdenum disulfide, graphite, silicone oil, glass fiber, carbon fiber, and aromatic polyamide fiber additives make plastic composites that are self-lubricating and can reduce the pressure on mating parts, thereby improving the wear resistance of the material.

Here is a look at the materials that can improve the wear resistance of materials.
 

1. Polytetrafluoroethylene (PTFE, Teflon)

PTFE has the lowest coefficient of abrasion of all additive-resistant materials. PTFE molecules ground out during the friction process will form a lubricious film on the surface of the part. PTFE has excellent lubricity and wear resistance under frictional shear, and is the best wear-resistant additive in high-load applications. These high load applications include hydraulic piston ring seals. Thrust washers. The most appropriate PTFE content is 15% PTFE for non-crystalline and 20% PTFE for crystalline plastics.
 

2. Molybdenum disulfide

Another common name for molybdenum disulfide is "Moly", a wear-resistant additive used primarily in nylon plastics. Molybdenum disulfide acts as a crystallizing agent to increase the crystallinity of nylon, resulting in a harder and more abrasion-resistant surface. Molybdenum disulfide has a very high affinity for metals. Once adsorbed on a metal surface, the molecules of molybdenum disulfide fill the capillaries on the metal surface that can only be seen through a microscope and make the metal surface more slippery. This makes molybdenum disulfide an ideal wear additive for applications where nylon and metal rub against each other.
 

3. Graphite

The chemical structure of graphite is a unique lattice-like structure. This unique chemical structure allows the graphite molecules to slide easily against each other with little frictional force. This abrasion resistance property is especially important in environments where water is present. This property makes graphite an ideal abrasion-resistant additive for many applications where water is used, such as water pavement enclosures. Impellers and Valueseals. 4.
 

4. Polysiloxanes

Polysiloxane liquid is a wear additive that migrates. When added to thermoplastics, the additive slowly migrates to the surface of the part and forms a continuous film. Polysiloxanes are available in a wide range of viscosities, measured in centistokes. Polysiloxanes with lower viscosities become more fluid and move quickly to the surface of the part providing wear resistance properties. If the viscosity of polysiloxane is too low, it is more volatile and will quickly migrate out of the part.
 

5. Glass fiber

Glass fibers are hard and scratchy fibers, so it is often incorrectly assumed that the addition of glass fibers to a plastic will destroy the plastic's wear resistance. Glass fibers provide a strong mechanical bond between polymers, so glass fibers can add structural integrity to thermoplastics and improve wear resistance. Glass fibers provide reinforcement that increases the plastic's resistance to subduction, thermal conductivity, and thermal deformation, thus significantly improving the plastic's ability to resist loading and abrasion.
 

6. carbon fiber

As in the case of glass fibers, carbon fibers can significantly improve structural integrity. Abrasion resistance and the ability to resist loads and abrasion rates. Unlike glass fiber, carbon fiber is a softer and less scratchy fiber. Carbon fibers do not scratch the steel or ferrous surfaces they rub against. Thermoplastics with more than 10% of carbon fiber will have the function of eliminating static electricity, and can therefore overcome the static electricity problem caused by.
 

7. Aromatic polyamide fiber

Aromatic polyamide fiber is also one of the wear-resistant additives. Unlike glass fiber and carbon fiber, it is the softest and most scratch-free fiber. This property is the main advantage of aromatic polyamide fibers in wear-resistant applications, especially on the surface of mating parts to scratching fibers.