US 2024/0067787 A1 · IMPROVED SURFACE MODIFICATION OF MATERIALS

Abstract

The present disclosure provides for improved material surface modification. In one aspect, the present disclosure provides a method of surface modifying a material, the method comprising the steps of (1) oxidizing the material such that the oxidation level of the surface of the material is in a specific numerical range when measured by X-ray photoelectron spectroscopy (XPS), (2) (A) grafting the oxidized material and/or (B) coating the oxidized material with a hydrophilic polymer. In one aspect, the present disclosure provides a method of producing a fiber composite material in which the fiber material is contained within the second material, the method comprising the steps of (1) oxidizing at least one of the fiber material and the second material, (2) interface adhering or bonding the fiber material and the second material after the oxidizing step (3) melting the second material to obtain the fiber composite material.

Claims21

Dependent claims

A method for surface modifying a material, comprising,

(1) the step of oxidizing said material, and
(2) the step of surface coating said oxidation treated material;
the method, wherein said oxidation treatment includes the steps of,
(i) the oxidation treatment is performed such that the (C—O bonds)/(total carbon bonds) % within a depth of 10 nm of the surface of said material as measured by X-ray photoelectron spectroscopy (XPS) increases by about 1 to 20% from before the oxidation treatment, or
(ii) the oxidation treatment is performed so that the percentage of (C—O bonds)/(total carbon bonds) within a depth of 10 nm of the surface of said material, as measured by X-ray photoelectron spectroscopy (XPS), is about 5-15%,
(iii) the method is performed such that the O/C atomic number ratio within a depth of 10 nm of the surface of said material as measured by X-ray photoelectron spectroscopy (XPS) is about 0.03 to 0.2,
wherein the step of surface coating comprises subjecting the oxidation treated material to
(a) grafting a hydrophilic vinyl monomer,
(b) grafting a hydrophilic monomer and applying a hydrophilic polymer, or
(c) grafting the vinyl ester monomer and subjecting to hydrolysis.

7 more elements

Dependencies are inferred from the claim text.

Improved surface modification of materials

Life of this patent

Improved surface modification of materials

Life of this patent

Abstract

Claims21