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

Preparation method for high-resolution thermoplastic polymer patterns by using room temperature reverse-imprinting technique

A thermoplastic polymer, high-resolution technology, applied in coatings and other directions, can solve the problems of long time, expensive equipment, high temperature and high pressure, etc., to achieve the effect of short time consumption, avoiding high temperature and high pressure energy consumption, and improving patterning efficiency

Active Publication Date: 2017-05-31
JIANGNAN UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for efficiently preparing high-resolution thermoplastic polymer patterns at room temperature in order to overcome the shortcomings of high temperature and high pressure, time-consuming and expensive equipment in the traditional process of preparing high-resolution thermoplastic polymer patterns

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 method for high-resolution thermoplastic polymer patterns by using room temperature reverse-imprinting technique
  • Preparation method for high-resolution thermoplastic polymer patterns by using room temperature reverse-imprinting technique
  • Preparation method for high-resolution thermoplastic polymer patterns by using room temperature reverse-imprinting technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Dissolution of thermoplastic polymer

[0025] Solid polymethyl methacrylate (PMMA) was heated and dissolved in acetone solution by ultrasonic heating to prepare a PMMA solution with a mass concentration of 0.5%.

[0026] Step 2: Preparation of soft template

[0027] Weigh the prepolymer of polydimethylsiloxane (PDMS) and initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a strip width of 3 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0028] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0029] Under the conditions of rotation speed of 4000rpm and rotation time of 30s, the PMMA solution was spin-coated on the surface of the PDMS soft template, and PMMA did not completely fill the depression of the soft template structure.

[0030] Step 4: Hydrophilicization of the thermoplastic polymer...

Embodiment 2

[0037] Step 1: Dissolution of thermoplastic polymer

[0038] Solid polystyrene (PS) was heated and dissolved in acetone solution by ultrasonic heating, and a PS solution with a mass concentration of 1% was prepared.

[0039] Step 2: Preparation of soft template

[0040] Weigh the prepolymer of polydimethylsiloxane (PDMS) and initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a strip width of 1 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0041] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0042] Under the conditions of rotation speed of 6000rpm and rotation time of 60s, the PS solution was spin-coated on the surface of the PDMS soft template, and the PS did not completely fill the depression of the soft template structure.

[0043] Step 4: Hydrophilicization of the thermoplastic polymer on the sur...

Embodiment 3

[0050] Step 1: Dissolution of thermoplastic polymer

[0051] Solid polymethyl methacrylate (PMMA) was heated and dissolved in acetone solution by ultrasonic heating to prepare a PMMA solution with a mass concentration of 1%.

[0052] Step 2: Preparation of soft template

[0053] Weigh the prepolymer of polydimethylsiloxane (PDMS) and the initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a grid width of 1 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0054] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0055] Under the conditions of rotation speed of 6000rpm and rotation time of 60s, the PMMA solution was spin-coated on the surface of the PDMS soft template, and PMMA did not completely fill the depression of the soft template structure.

[0056] Step 4: Hydrophilicization of the thermoplastic polyme...

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 relates to a preparation method for high-resolution thermoplastic polymer patterns by using a room temperature reverse-imprinting technique. The preparation method comprises the following steps: (1) firstly, dissolving thermoplastic polymer solids in a solvent; (2) then carrying out spin coating of a thermoplastic polymer solution to a soft template of which the surface has a convex-concave structure, and ensuring that the concave structure of the soft template is not fully filled; (3) making the surface of a thermoplastic polymer on the soft template in the step (2) hydrophilic; (4) finally, making the soft template obtained in the step (3) in contact with a hydrophilic substrate for 5 to 600s at room temperature, then stripping the soft template, and transferring the polymer on the side wall surface of the concave structure of the soft template to the surface of the substrate so as to obtain the thermoplastic polymer patterns of which the resolutions are much higher than that of the soft template structure. The room temperature reverse-imprinting technique related in the invention can be used for quickly preparing the high-resolution thermoplastic polymer patterns at the room temperature and normal pressure, and further can realize imprinting on a curve surface.

Description

technical field [0001] The invention relates to the technical field of micro-nano processing of materials, in particular to a method for preparing a high-resolution thermoplastic polymer pattern by using a room temperature reverse embossing technology. Background technique [0002] Functional materials with high-resolution ordered patterns have attracted extensive attention for their increasing applications in electronics, optics, bionics, medicine, energy, and other fields. There are currently two types of methods for fabricating high-resolution patterns: top-down and bottom-up. CN102627028A reports a method for preparing high-resolution patterns based on the spontaneous dewetting of ink droplets, using the dispersant in the ink droplets to spontaneously dewet during the evaporation process, resulting in the shrinkage of the volume of the ink droplets on the substrate, and the deposition The area is reduced, and after the dispersant in the ink drop evaporates, it finally s...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08J7/04C08L83/04C08L33/12C08L25/06
CPCC08J7/0427C08J7/123C08J2325/06C08J2333/12C08J2383/04C08J2425/06C08J2433/12
Inventor 石刚车友新李赢王大伟倪才华桑欣欣王利魁
Owner JIANGNAN UNIV