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Choose the right basic resin
Usually ultra-high molecular weight polyethylene (PE-UHWM) is one of the most wear-resistant plastics, and choosing PE-U·HWM can simply improve the material wear resistance. In addition, plastic with high crystallization, high regularity is more wear-resistant than that with high hardness. In polypropylene (PP) modification, #pp pelletizing machine polyolefin elastomer (POE), ethylene propylene terene rubber (EPDM), thermoplastic dynamic vulcanized rubber (TPV) (such as dynamic vulcanized PP/EPDM) is usually used to toughen PP, and the addition of elastomers generally leads to a decline in scratch resistance, so it is very important to choose the appropriate elastomer. The order of scratch resistance is as follows: TPV > EPDM > POE. #pp granules making machine.
Use good wear resistance filler
(1) Molybdenum disulfide
Molybdenum disulfide, a wear-resistant additive ,is mainly used in nylon plastics. Molybdenum disulfide acts as a crystallizing agent to increase the crystallinity of nylon, so the nylon material produces a harder and more wear-resistant surface. Molybdenum disulfide has a high affinity for metal, once adsorbed on the metal surface, molybdenum disulfide molecules will fill the metal surface with microscopic pores, and make the metal surface more smooth, which makes molybdenum disulfide an ideal wear-resistant additive for nylon and metal friction occasions.
(2) Graphite
The structure of graphite is the crystal structure of mineral graphite, hexagonal layer, this unique chemical structure makes graphite molecules easily slide each other when subjected to little friction, this wear resistance is particularly important in the environment with water, so graphite as an ideal wear-resistant additive used in many parts placed in water, such as water shell, blade and seal. #pp building template board machine #xpe foamed sheet making machine
(3) Fiberglass
Glass fiber can form a strong mechanical bond between polymers, so glass fiber can improve the integrity of thermoplastic structures and improve wear resistance. Glass fiber provides reinforcement and can improve the thermal conductivity and thermal deformation of plastics, significantly improving the load resistance and wear resistance of plastics.
(4) carbon fiber
Similar to the case of glass fiber, carbon fiber can greatly improve the integrity of the material structure, load resistance and wear resistance. Unlike glass fiber, carbon fiber is a softer and less scratchy fiber, and carbon fiber will not scratch the friction surface of iron or steel against which it is rubbed.
Add suitable wear-resisting additives
(1) Polytetrafluoroethylene (PTFE)
Polytetrafluoroethylene (PTFE) has a very low coefficient of friction, and PTFE molecules form a lubricating film on the surface of the part during friction. PTFE has good lubricity and wear resistance under friction, and is the best wear resistant additive in high load applications. These high-load applications include hydraulic piston ring seals and thrust washers. The PTFE content in amorphous plastics is generally 15%, and in crystalline plastics is generally 20%.
With nearly 20 years in the intelligent extrusion equipment industry, he has held key roles at Jwell Machinery, including General Manager and Rotating Chairman. Since 2024, he has managed multiple subsidiaries, driving business expansion and industrial upgrades, while leading innovation in intelligent manufacturing and global growth.
