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A method for preparing a hydrophilic lubricating coating on the surface of a material

A kind of lubricating coating, hydrophilic technology, applied in coating, surgery, medical science and other directions, can solve the problems of wettability and water lubricating modification difficulty, continuous lubricating modified modified substrate is difficult to recycle, etc. Simple steps, wide application range, energy saving effect

Active Publication Date: 2020-07-21
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to endow the surface of the material with excellent hydrophilicity and low friction performance, solve the problem of difficult surface wettability and water lubrication modification of traditional engineering and medical materials, and solve the problem of continuous lubrication modification and modification of the material surface. The problem of difficult recycling of permanent substrates

Method used

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  • A method for preparing a hydrophilic lubricating coating on the surface of a material
  • A method for preparing a hydrophilic lubricating coating on the surface of a material
  • A method for preparing a hydrophilic lubricating coating on the surface of a material

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Embodiment 1

[0027] Embodiment 1: polymer material surface grafting single network hydrogel film

[0028] (1) a. Preparation of iron-based ultra-high molecular weight polyethylene material: Weigh 10 g of ultra-high molecular weight polyethylene powder, add 2.0 g of iron powder for ball milling and mixing, the ball milling rate is 2000 rpm, and the ball milling time is 12 minutes; The mixed powder was put into a 25 mm×10 mm×10 mm stainless steel mold, and a pressure of 6 MPa was applied; the heating program was set: within 40 minutes, the room temperature was raised to 170°C, and within 20 minutes, the temperature was raised from 170°C to 200°C. After cooling for 60 min, the iron-based ultra-high molecular weight polyethylene composite material (UHMWPE@Fe) was obtained by demoulding.

[0029] b. In situ growth of single network hydrogel film on the surface of iron-based ultra-high molecular weight polyethylene material: Weigh 5 g of hydroxyethyl methacrylate (HEMA), 0.1 g of N,N'-methyleneb...

Embodiment 2

[0032] Example 2: Polymer material surface continuously modified multi-network hydrogel composite film

[0033] a. The preparation of the polymer composite material containing the metal catalyst is the same as in Example 1, and will not be repeated here.

[0034] b. Configuration of the hydrogel monomer solution. Solution a: Weigh 6.78 g of N-isopropylacrylamide, 0.86 g of acrylic acid, 0.01 g of ethylene glycol diacrylate, and 0.02 g of ammonium persulfate, add deionized water to dilute to 40 mL, and sonicate until all solid particles are dissolved. A hydrogel monomer solution a is prepared. Solution b: Weigh 0.6 g of acrylic acid, 4.3 g of acrylamide, 0.005 g of ethylene glycol diacrylate, and 0.01 g of ammonium persulfate, add deionized water to dilute to 30 mL, sonicate until all solid particles are dissolved, and prepare a hydrogel Monomer solution b. Solution c: 6.5 g of hydroxyethyl methacrylate, 0.05 g of N, N'-methylenebisacrylamide, 0.01 g of ammonium persulfate, ...

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Abstract

The invention discloses a method for preparing a hydrophilic lubricating coating on the surface of a material. The method comprises the following steps: adding a metal catalyst into a polymer material, a ceramic material or an alloy material to prepare a composite material containing the metal catalyst by means of a thermosetting or hot-pressing forming method; and immersing the composite materialin a hydrogel monomer solution to be polymerized to obtain the composite material, wherein a hydrogel lubricating film grows on the surface in situ. The modification method disclosed by the inventionis internationally original, the reaction condition is mild and the modification speed is high, and the method can be used for carrying out wetting and water lubricating modification on nearly all materials, so that the method particularly solves the problems of hard water lubricating modification of the surface of the medical low surface energy polymer material and recycling of a modified substrate for multiple times, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of surface and interface chemical modification, in particular to a method for preparing a hydrophilic lubricating coating on the surface of a material. Background technique [0002] With the development of the field of medical devices, artificially synthesized medical polymer materials, ceramics and alloy materials have shown great application prospects and become one of the main development directions of future biomaterials. According to different use requirements, medical polymer materials can be divided into two categories: the first type is implantable medical polymer materials, that is, polymer materials are implanted in the body as artificial replacement organs for a long time, such as artificial blood vessels and artificial joints , artificial bones, etc. The polymer materials used mainly include ultra-high molecular weight polyethylene, silicone rubber, fluoropolymers and alloy materials, etc.; the second type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/16C08L23/06C08L61/16C08K3/08A61L31/10A61L31/02A61L31/04A61L31/14
CPCA61L31/022A61L31/048A61L31/10A61L31/145A61L2420/02A61L2420/08C08J7/16C08J2323/06C08J2361/16C08K3/08C08K2003/0856C08K2003/0893C08L2207/068C08L23/08C08L61/16
Inventor 周峰麻拴红王晓龙
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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