Method of manufacturing Composite reinforced UHMWPE by modificationUhmwpe is an impact-resistant, wear-resistant, self-lubricating, and cryogenic engineering plastic, but we are always looking for ways to produce Composite reinforced UHMWPE with higher strength, here are three of the more established approaches:

1. Self-reinforcing modification

By adding UHMWPE fiber into UHMWPE resin, composites with excellent mechanical properties can be obtained because the matrix resin and fiber have the same chemical characteristics. The tensile strength, elastic modulus, impact strength, and creep resistance of UHMWPE can be greatly improved by adding UHMWPE fiber. This Composite reinforced UHMWPE is especially suitable for biomedical load-bearing components, artificial joint replacement, etc. . Its volume wear rate is very small, which can improve its service life.

2. In situ chemical synthesis

In-situ chemical synthesis is a method of chemically treating the surface of polymer matrix materials to make them active, composite reinforced UHMWPE is then prepared by inducing inorganic ion deposition in solution to transform into solid inorganic particles on the substrate surface. Compared with solid-phase mechanical mixing, melt blending, solution stirring, and gas flow dispersion, in-situ chemical synthesis has the advantages of a good dispersion effect and strong interface binding.

3. Radiation cross-linking

At room temperature and in air, oxygen-containing polar groups such as carbonyl groups can be introduced into the molecular chain of UHMWPE by γ-ray irradiation, and after γ-ray irradiation, the molecular chain of UHMWPE is degraded and the molecular weight of UHMWPE is reduced, the tensile yield strength and elongation at break of Uhmwpe were increased and notch impact strength was decreased by γ-ray irradiation within a certain range of irradiation dose, get a higher strength of Composite reinforced UHMWPE.