Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation, preparation method and application of isotactic polypropylene/polyurethane superhydrophobic film

An isotactic, polypropylene technology, used in polyurea/polyurethane coatings, coatings, etc., which can solve problems such as loss of mechanical properties and achieve good biocompatibility

Inactive Publication Date: 2011-08-31
NANJING NORMAL UNIVERSITY
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The H.Y.Erbil research group (A.L.Demirel, Y.Avci, O.Mert) published a research article in the journal Science in 2003 (Volume 299, pages 1377-1379). They found that the use of 1,4-xylene and methyl ethyl ketone Mixed solvents can produce isotactic polypropylene (water contact angle of 156o) powdery objects with good superhydrophobic properties, but it is a powdery object made of nanoparticles aggregated, and its mechanical properties are completely lost ( figure 1 )

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation, preparation method and application of isotactic polypropylene/polyurethane superhydrophobic film
  • Preparation, preparation method and application of isotactic polypropylene/polyurethane superhydrophobic film
  • Preparation, preparation method and application of isotactic polypropylene/polyurethane superhydrophobic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, the preparation of isotactic polypropylene / polyurethane superhydrophobic film

[0024] The isotactic polypropylene / polyurethane superhydrophobic film was prepared by the solution method, using xylene as the solvent (155°C, stirring), adding isotactic polypropylene particles and biomedical grade polyurethane particles successively (the mass ratio of the two was 95 :5), after the two dissolve into a homogeneous phase, pour out the fast volatile solvent to form a film. The scanning electron microscope images of the surface morphology of the prepared films are shown in figure 2 Shown, the water contact angle is 158o. Figure 3-5 Infrared images of isotactic polypropylene particles, polyurethane particles and isotactic polypropylene / polyurethane superhydrophobic films. The infrared spectrum of the isotactic polypropylene / polyurethane composite film contains the respective characteristic peaks of the two components of isotactic polypropylene and polyurethane...

Embodiment 2

[0025] Example 2. Isotactic polypropylene / polyurethane superhydrophobic film prevents blood cell adhesion

[0026] The isotactic polypropylene / polyurethane superhydrophobic film was prepared by the solution method, using xylene as the solvent (110°C, stirring), adding isotactic polypropylene particles and biomedical grade polyurethane particles successively (the mass ratio of the two was 50 :50), after the two dissolved into a homogeneous phase, the fast volatile solvent was poured out to form a film. Soak the isotactic polypropylene / polyurethane superhydrophobic film in fresh human blood at 37°C for 30 minutes, rinse the sample with normal saline for 3 times, soak it in 2.5% glutaraldehyde solution for 24 hours, and fix and adhere to the sample. The blood cells on the surface were taken out, soaked in 55%, 70%, 80%, 90%, 95%, and 100% ethanol solutions in volume fractions for 30 minutes, and dehydrated step by step. Observed by scanning electron microscope, there is no blood...

Embodiment 3

[0028] Example 3, isotactic polypropylene / polyurethane superhydrophobic film prevents platelet adhesion

[0029] The isotactic polypropylene / polyurethane superhydrophobic film was prepared by the solution method, using xylene as the solvent (130°C, stirring), adding isotactic polypropylene particles and biomedical grade polyurethane particles successively (the mass ratio of the two was 75 :25), after the two are dissolved into a homogeneous phase, the fast volatile solvent is poured out to form a film. Soak the isotactic polypropylene / polyurethane superhydrophobic film in platelet-rich plasma at 37°C for 3 hours, rinse the sample with saline for 3 times, soak in 2.5% glutaraldehyde solution for 24 hours, and fix and adhere to the The platelets on the sample were taken out, soaked in 55%, 70%, 80%, 90%, 95%, and 100% ethanol solutions with volume fractions in turn for 30 minutes, and dehydrated step by step. Observed by scanning electron microscope, there is no platelet adhesi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses preparation, a preparation method and application of an isotactic polypropylene / polyurethane superhydrophobic film. The isotactic polypropylene / polyurethane superhydrophobic film is prepared by dissolving and blending polyurethane and isotactic polypropylene in dimethylbenzene to form a film. The process is simple; energy consumption is low; a new idea is provided for preparation of a polypropylene superhydrophobic material; and a road is widened for developing and utilizing a polypropylene material. The isotactic polypropylene / polyurethane superhydrophobic film has excellent biocompatibility. When the film is used for performing a contact test on blood cells and soterocyte, no adhesion phenomenon occurs, so the film can be used as a biological medical material.

Description

technical field [0001] The invention relates to providing an isotactic polypropylene / polyurethane superhydrophobic film and a preparation method thereof. Preparation of isotactic polypropylene / polyurethane superhydrophobic film by solution method and its use in the field of biomedical materials. technical background [0002] The H.Y.Erbil research group (A.L.Demirel, Y.Avci, O.Mert) published a research article in the journal Science in 2003 (Volume 299, pages 1377-1379). They found that using 1,4-xylene and methyl ethyl ketone Mixed solvents can produce isotactic polypropylene (water contact angle of 156o) powdery objects with good superhydrophobic properties, but it is a powdery object formed by the aggregation of nanoparticles, and its mechanical properties are completely lost ( figure 1 ). In order to expand the application scope of the superhydrophobic properties exhibited by isotactic polypropylene, we have tried many methods to improve the mechanical properties of i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/12C08L75/04C08J5/18C09D123/12C09D175/04
Inventor 毛春王晓波佟凤宇朱钦舒孙冲沈健黄晓华
Owner NANJING NORMAL UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com