BIOCOMPATIBLE Mg-P COATING ON SURFACE OF ZINC-BASED BIOMEDICAL MATERIAL, AND PREPARATION METHOD AND USE THEREOF
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United States of America
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Jan 27, 2022
app pub date -
Jun 28, 2020
filing date -
Jun 28, 2020
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Abstract
A biocompatible Mg—P coating on the surface of a zinc-based biomedical material, and a preparation method and use thereof are disclosed. In the method, zinc and a zinc alloy are first subjected to surface pretreatment and then soaked in a phosphate solution at a constant temperature to form the Mg—P coating through chemical liquid deposition (CLD). The control on the composition, thickness and surface morphology of the coating is realized by using the CLD method. The biocompatible Mg—P coating has a thickness of 0.5 μm to 50 μm, is dense and uniform, and comprises a main component of zinc-magnesium-phosphate and a small amount of zinc phosphate.
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