Unlock instant, AI-driven research and patent intelligence for your innovation.
Method for preparing bionic adhesive material based on micro-nano additive
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A bionic adhesive and micro-nano technology, applied in the field of bionic adhesive materials, can solve the problems of high cost and time consumption, and achieve the effects of reducing preparation costs, solving adhesion, and reducing difficulty
Active Publication Date: 2021-04-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF31 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] In summary, various research institutions have adopted different methods such as machining, photolithography mold, and chemical vapor deposition to develop biomimetic adhesive materials. Although the above methods have achieved good results, these preparation methods are costly and time-consuming. lack of
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
[0038] Add PVC powder, plasticizer (DBA), organic solvent (THF) into the conical flask at a mass ratio of 1:1.75:15, place it on a magnetic stirrer and stir at 500r / min for 5 minutes, then add PVC to the conical flask, Place on a magnetic stirrer and stir at 1500r / min for 24 hours to obtain a PVC gel solution;
[0039] Step 2, a mold inversion:
[0040] Place the additively manufactured micro-nano mold in a glass petri dish, pour the mold with PVC solution, and place it in a vacuum box after the solution is naturally leveled, remove air bubbles by vacuuming, and allow the PVC gel solution to fully penetrate into the mold...
[0046] Dibutyl adipate (DBA) and tetrahydrofuran (THF) are selected as the plasticizer and organic solvent in this embodiment, and other types of plasticizers and organic solvents have similar functions and effects.
[0047] Step 1, PVC gel solution configuration:
[0048] Add PVC powder, plasticizer (DBA), organic solvent (THF) into the conical flask at a mass ratio of 1:1.75:15, place it on a magnetic stirrer and stir at 500r / min for 5 minutes, then add PVC to the conical flask, Place on a magnetic stirrer and stir at 1500r / min for 24 hours to obtain a PVC gel solution;
[0049] Step 2, a mold inversion:
[0050] Place the additively manufactured micro-nano mold in a glass petri dish, pour the mold with PVC solution, and place it in a vacuum box after the solution is naturally leveled, remove air bubbles by vacuuming, and allow the PVC gel solution to fully penetrate into...
Embodiment 3
[0055] Preparation of epoxy resin-based biomimetic adhesive materials:
[0056] Step 1, PVC gel solution configuration:
[0057] Add PVC powder, plasticizer (DBA), organic solvent (THF) into the conical flask at a mass ratio of 1:1.75:15, place it on a magnetic stirrer and stir at 500r / min for 5 minutes, then add PVC to the conical flask, Place on a magnetic stirrer and stir at 1500r / min for 24 hours to obtain a PVC gel solution;
[0058] Step 2, a mold inversion:
[0059] Select dibutyl adipate (DBA), tetrahydrofuran (THF) as the plasticizer and organic solvent of this example, and other types of plasticizers and organic solvents have similar functions and effects.
[0060] Place the additively manufactured micro-nano mold in a glass petri dish, pour the mold with PVC solution, and place it in a vacuum box after the solution is naturally leveled, remove air bubbles by vacuuming, and allow the PVC gel solution to fully penetrate into the mold ; Put the beaker into a glass a...
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
Property
Measurement
Unit
diameter
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a method for preparing a bionic adhesive material based on a micro-nano additive. The method comprises the following steps that a plasticizer and an organic solvent are mixed,and polyvinyl chloridepowder is added, so that a polyvinyl chloride gel solution is obtained; a micro-nano mold for micro-nano additive manufacturing is put into a container, the polyvinyl chloride gel solution is poured, and vacuumizing is conducted to remove bubbles in the polyvinyl chloride gel solution; the container is put into a glass sealing tank, the glass sealing tank is put into a vacuum drying oven, heating is conducted to volatilize the organic solvent, then the mold is taken out, and demolding is conducted to obtain a polyvinyl chloride female mold of the micro-nano mold; the polyvinyl chloride female mold is put into the container, a secondary reverse mold material is poured, and vacuumizing is conducted to remove bubbles; and after the secondary reverse mold material is cured, the female mold is taken out, and the secondary reverse mold material is separated from the polyvinyl chloride female mold to obtain the bionic adhesive material. The bionic adhesive material prepared through two-time reverse mold method has good adhesion performance, high elasticity modulus and reusability, the invention discloses the preparation method of the bionic adhesive material, and the method is suitable for preparing bionic adhesive materials of various micro-nano structures.
Description
technical field [0001] The invention relates to a method for preparing bionic adhesive materials based on micro-nano additives, and belongs to the technical field of bionic adhesive materials. Background technique [0002] As a representative animal with excellent crawling ability in nature—the gecko, it can crawl freely on the vertical wall and ceiling, even on the smooth glass window. The protruding structure is in close contact with the surface, generating weak van der Waals force and converging into a macroscopic adhesion force, which makes the gecko adhesion system have excellent properties such as high-strength adhesion, easy detachment, and repeatable adhesion, which has attracted great attention from scientists and engineers in many fields. . A lot of work has been done in the development of gecko-like adhesive arrays at home and abroad, and great progress has been made. Cutkosky et al. from Stanford University in the United States started from optimizing the morph...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More