Porous polyether-ether-ketone-based coating material and preparation method thereof

A technology of polyether ether ketone and coating materials, which is applied in the fields of coating, medical science, tissue regeneration, etc. It can solve the problems of low bonding strength between coating and substrate, difficult preparation process, poor stability, etc., and avoid thermal degradation , The preparation process is simple and practical, and the effect of low cost

Pending Publication Date: 2021-08-27
THE SECOND AFFILIATED HOSPITAL OF XIAN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a porous polyetheretherketone-based coating material and its preparation method to solve the problems encountered in the prior art when modifying polyetheretherketone with a surface coating. The bonding strength between the layer and the substrate is low, the stability is poor, and the technical problems of the preparation process are relatively difficult

Method used

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  • Porous polyether-ether-ketone-based coating material and preparation method thereof
  • Porous polyether-ether-ketone-based coating material and preparation method thereof
  • Porous polyether-ether-ketone-based coating material and preparation method thereof

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preparation example Construction

[0035] as attached figure 1 Shown, the present invention provides a kind of preparation method of porous polyetheretherketone based coating material, comprises the following steps:

[0036] Step 1. Treating the surface of the polyetheretherketone to form a porous structure on the surface of the polyetheretherketone to obtain polyetheretherketone with a porous surface.

[0037] Among them, the process of treating the surface of polyetheretherketone is specifically:

[0038] Soak polyether ether ketone in concentrated sulfuric acid for 4-6 minutes, then take out the soaked polyether ether ketone, rinse to remove residual sulfuric acid, and dry to obtain polyether ether ketone with a porous surface; When washing polyetheretherketone, first use distilled water to wash repeatedly 3-5 times; then use acetone to wash in an ultrasonic vibration environment to remove residual sulfuric acid; use distilled water to wash repeatedly to remove residual acetone.

[0039] Step 2. Using cold...

Embodiment 1

[0047] Embodiment 1 provides a porous polyether ether ketone-based coating material and a preparation method thereof, comprising the following steps:

[0048] Step 1. Place polyether ether ketone in concentrated sulfuric acid, magnetic stirring and soaking for 5 minutes; then take out the soaked polyether ether ketone, and rinse the soaked polyether ether ketone; washing process: first use distilled water to rinse repeatedly for 3- 5 times; then in an ultrasonic vibration environment, use acetone to rinse for 10 minutes to remove residual sulfuric acid; use distilled water to rinse repeatedly for 3-5 times, each time for 10 minutes to remove residual acetone; after drying, obtain polyetherether with a porous structure surface ketone.

[0049] Step 2. Using vacuum cold spraying technology, the degradable material powder is deposited on the surface of the porous structure of polyetheretherketone to obtain the porous polyether ether ketone-based coating material; wherein the degr...

Embodiment 2

[0053] Embodiment 2 provides a porous polyetheretherketone-based coating material and a preparation method thereof, comprising the following steps:

[0054] Step 1. Place polyetheretherketone in concentrated sulfuric acid, magnetically stir and soak for 4 minutes; then take out the soaked polyether ether ketone, and rinse the soaked polyetheretherketone; first, rinse repeatedly with distilled water for 3-5 times; Then, in an ultrasonic vibration environment, wash with acetone for 10 minutes to remove residual sulfuric acid; wash with distilled water repeatedly for 3-5 times, each time for 10 minutes, to remove residual acetone; after drying, polyether ether ketone with a porous surface is obtained.

[0055] Step 2. Using vacuum cold spraying technology, the degradable material powder is deposited on the surface of the porous structure of polyetheretherketone to obtain the porous polyether ether ketone-based coating material; wherein the degradable material powder is calcium sil...

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Abstract

The invention discloses a porous polyether-ether-ketone-based coating material and a preparation method thereof. The surface of polyether-ether-ketone is treated, a porous structure is formed on the surface of polyether-ether-ketone, degradable material powder is deposited on the surface of the porous structure of polyether-ether-ketone by adopting a cold spraying technology or a vacuum cold spraying technology, and the porous polyether-ether-ketone-based composite material is obtained. The degradable material powder is one or more of hydroxyapatite, calcium silicate and beta-tricalcium phosphate. The surface of the polyether-ether-ketone is treated to be of a porous structure, the contact area of the coating and a polyether-ether-ketone base material is effectively increased, cold spraying or vacuum cold spraying is adopted, it can be ensured that a degradable material enters the porous structure, and the bonding strength of the coating and the polyether-ether-ketone base material is effectively improved. The coating is made of a degradable material, can guide or induce new bone tissues to grow into the porous structure, and can greatly enhance the osseointegration and stability of a bone / implant interface.

Description

technical field [0001] The invention belongs to the technical field of coating materials, in particular to a porous polyetheretherketone-based coating material and a preparation method thereof. Background technique [0002] Orthopedic clinics commonly use implants to restore the integrity of joints and bones. The commonly used implant materials are metal materials, whose elastic modulus is much higher than that of normal bone tissue, and are prone to stress shielding effects that lead to implant failure; polyether ether ketone ( PEEK) is a thermoplastic whose elastic modulus is close to that of human bone tissue, and has stable chemical properties, good biocompatibility, and strong processability. ; However, PEEK lacks biological activity, and the osseointegration efficiency is low after implantation in vivo; therefore, PEEK needs to be modified to improve its bioactivity and osseointegration. [0003] In the prior art, the methods commonly used for PEEK modification includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/18A61L27/32A61L27/30A61L27/50A61L27/54A61L27/56A61L27/58
CPCA61L27/18A61L27/32A61L27/306A61L27/50A61L27/54A61L27/56A61L27/58A61L2420/02A61L2430/02A61L2300/112A61L2300/216C08L61/16
Inventor 马瑞李成新马凯
Owner THE SECOND AFFILIATED HOSPITAL OF XIAN JIAOTONG UNIV
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