A kind of preparation method of coating material and substrate

A coating and coating technology, applied in the field of materials, can solve the problems of increasing product cost, increasing the complexity of components, reducing the scope of stents and balloons, etc., to achieve the effect of increasing the coefficient of friction, reducing the risk of unloading, and increasing the coefficient of friction

Active Publication Date: 2021-01-29
MICROPORT SINICA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, it is often only possible to choose a material with a high friction coefficient to prepare a stent or a balloon simply through the replacement of materials, or to prevent the two from falling off by adding some connectors, but these methods are not There are great limitations, greatly reducing the range of materials that can be selected for stents and balloons, or increasing the complexity of components and increasing the cost of products

Method used

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  • A kind of preparation method of coating material and substrate
  • A kind of preparation method of coating material and substrate
  • A kind of preparation method of coating material and substrate

Examples

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preparation example Construction

[0044] A method of preparing a matrix, such as figure 1 shown, including the following steps:

[0045] S1: The reactive polymer and photoinitiator are dissolved in the dispersion medium in proportion to obtain the coating; in addition, when the coating contains surfactant, the reactive polymer, photoinitiator and surfactant are The ratio is dissolved in the dispersion medium to obtain the coating paint. Wherein, the reactive polymer can be any one of the polymers described above or below, and the photoinitiator can also be any one of the photoinitiators described above or below.

[0046] S2: Apply the coating paint evenly to the surface of the substrate by spraying or dipping, and then the coating is cured, and the substrate is obtained after the coating is cured. The irradiation time is more than 1 min, and the thickness of the coating is 0.1-50 μm in the prepared matrix.

[0047]In order to further understand the present invention, the preferred solutions of the present i...

Embodiment 1

[0049] In this embodiment, the coating paint comprises a reactive polymer, a photoinitiator, a surfactant and a dispersion medium, wherein the reactive polymer is selected from polyethylene glycol diacrylate, and the photoinitiator is benzophenone, and the surface The active agent is Tween80, and the dispersant is isopropanol. The specific proportion of the coating paint is shown in Table 1 below.

[0050] Table 1 Components and proportioning of coating paint

[0051] reactive polymer Norrish-type photoinitiator Surfactant dispersion medium polyethylene glycol diacrylate Benzophenone Tween80 Isopropanol 3.00wt% 0.1wt% 0.1wt% 96.8wt%

[0052] The matrix provided in this embodiment uses nylon as the base material, and the preparation method of the matrix is ​​as follows:

[0053] The coating paint was prepared according to the ratio in Table 1, and then the coating paint was coated on the surface of the nylon substrate, irradiated with...

Embodiment 2

[0058] In this embodiment, the coating paint includes a reactive polymer, a photoinitiator, a surfactant and a dispersion medium, wherein the reactive polymer is selected from unsaturated polyamides, the photoinitiator is a diacylphosphine oxide, and the surfactant is Sodium dodecylbenzenesulfonate, ethyl acetate is used as dispersant. The specific proportion of the coating paint is shown in Table 3 below.

[0059] Table 3 Components and ratios of coatings

[0060] reactive polymer Norrish-type photoinitiator Surfactant dispersion medium Unsaturated polyamide Diacylphosphine oxide Sodium dodecyl benzene sulfonate ethyl acetate 5.00wt% 0.15wt% 0.15wt% 94.7wt%

[0061] The substrate provided in this embodiment uses 304 stainless steel as the substrate, and the preparation method of the substrate is as follows:

[0062] The coating paint was prepared according to the ratio in Table 3, and then the coating paint was coated on the surface...

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Abstract

The invention provides a method for preparing a coating material and a substrate. The coating material is applied to the surface of a substrate to improve the friction coefficient of the surface of the substrate, and includes a reactive polymer, a photoinitiator and a dispersion medium. The reactive polymerization The compound is selected from polymerizable compounds with a functionality of 2 or more, and the functional group of the reactive polymer is selected from one or more combinations of olefins, amino groups, amido groups, mercapto groups, unsaturated amides and unsaturated ethers. In the preparation method of a kind of coating paint and substrate provided by the present invention, after this coating paint is coated on the substrate surface, can significantly improve the friction coefficient of substrate surface, make substrate and The coefficient of friction between two objects in contact with the substrate is increased, and can be widely used in any field where the coefficient of friction between two contact surfaces needs to be increased.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a method for preparing a coating and a substrate. Background technique [0002] In the field of industrial production, it often involves relative motion between two objects in contact with each other, and sometimes the coefficient of friction between the two objects needs to be as small as possible in order to reduce the resistance of relative motion. But there are also many times when the coefficient of friction between the two objects needs to be as large as possible to avoid relative movement between the two. For example, in the field of medical equipment, some brackets are generally set in the balloon, and The space between the balloon and the stent is not fixedly connected. In order to reduce the risk of unloading of the stent, we hope that there will be no relative movement between the balloon and the stent as much as possible. In the prior art, it is often only possible to choose a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D171/02C09D177/00C09D175/14C09D7/63C08J7/04A61L31/10C08L77/00C08L75/04C08L67/02C08L23/12C08L23/06C08L33/12C08L27/06C08L27/18C08L69/00
CPCA61L31/10C08J2323/06C08J2323/12C08J2327/06C08J2327/18C08J2333/12C08J2367/02C08J2369/00C08J2375/04C08J2377/00C08J2471/02C08J2475/14C08J2477/00C09D171/02C09D175/14C09D177/00C08J7/0427C08L75/14C08L71/02C08L77/00
Inventor 王婷胡燕陈陆李俊菲
Owner MICROPORT SINICA CO LTD
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