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Reel-to-reel hot roller coining forming method for micro-nano structure on surface of polymer

A technology of micro-nano structure and forming method, which is applied in the field of roll-to-roll hot roller embossing processing, can solve the problems of low rolling speed and replication accuracy, unfavorable high-efficiency production, etc., to enhance process adaptability, promote discharge, and improve replication. The effect of precision

Inactive Publication Date: 2016-11-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the prior art, this invention has the advantages of reducing springback deformation and easy demoulding, but the rolling speed and copying accuracy of this invention are relatively low, which is not conducive to large-scale and efficient production

Method used

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  • Reel-to-reel hot roller coining forming method for micro-nano structure on surface of polymer
  • Reel-to-reel hot roller coining forming method for micro-nano structure on surface of polymer
  • Reel-to-reel hot roller coining forming method for micro-nano structure on surface of polymer

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Experimental program
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Effect test

Embodiment 1

[0032] In this embodiment, the polymer material used is a single-layer material, and thermoplastic polymer PC (polycarbonate) is selected for use, and its schematic diagram of the device used is as follows figure 1 As shown, the rotation of the unwinding roller 1, the preheating roller 3, the mold roller 4, the second base belt transmission wheel 7 and the winding roller 14 is driven by a motor, and they are used as the driving roller in the roll-to-roll transmission, and the second base belt transmission The rotation of the wheel 7 drives the transmission movement of the base belt 8 and the rotation of the first base belt transfer wheel 6, and the rotation of the pressure roller 5 is jointly driven by the movement of the mold roller 4 and the base belt 8; the hydraulic cylinder connected with the preheating roller 3 can promote preheating The roller 3 presses against the first base belt transmission wheel 6 , and the hydraulic cylinder connected with the pressure roller 5 can ...

Embodiment 2

[0041] In this embodiment, the polymer material used is a double-layer material, and a double-layer material composed of PET (polyethylene terephthalate) and PVC (polyvinyl chloride) is selected.

[0042] The schematic diagram of the device used is shown in image 3 As shown, the rotation of the unwinding roller 1, the mold roller 4 and the winding roller 13 is driven by a motor, as the driving roller in the roll-to-roll transmission, the rotation of the pressure roller is driven by the movement of the mold roller 4, and is connected with the pressure roller 5 The hydraulic cylinder can push the pressure roller 5 to press the mold roller 4.

[0043] The polymer material 2 is formed by bonding a PVC layer 15 (glass transition temperature 81°C, viscous flow temperature 160°C) and a PET layer 16 (glass transition temperature 69°C, viscous flow temperature 250°C), wherein the PVC layer 15 The thickness is 50 μm, which is the forming layer of the micro-nano structure, and the thic...

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Abstract

The invention relates to a reel-to-reel hot roller coining forming method for a micro-nano structure on the surface of polymer. The reel-to-reel hot roller coining forming method comprises the steps that a polymer material is conveyed to a preheat roller from an unreeling device, preheated to the attaching temperature and attached to a base band in a hot pressing mode; the polymer material attached to the base band is conveyed to the position between a mold roller and a pressure roller and heated to the coining temperature through the mold roller heated in advance, and then a mold cavity is filled with the polymer material through the action of the pressure roller; mold filling and supersonic vibration assembly starting are conducted at the same time, and the reel-to-reel hot roller coining process is completed with assistance of supersonic vibration; the polymer material is conveyed out from the position between the mold roller and the pressure roller, and then cooled and separated from the position inside the mold roller; and after demolding is completed, a polymer product is continuously cooled, separation of the polymer product and the base band is achieved, and finally reeling is conducted. According to the reel-to-reel hot roller coining forming method for the micro-nano structure on the surface of the polymer, the reel-to-reel hot roller coining process is improved through supersonic vibration, the mold filling process is accelerated, the duplication precision is improved, and the demolding force and demolding deformation are reduced; and the reel-to-reel hot roller coining forming method is advanced.

Description

technical field [0001] The invention relates to a roll-to-roll thermal roll embossing processing method, in particular to a roll-to-roll thermal roll embossing forming method with a polymer surface micronano structure. Background technique [0002] Polymer substrates with micro-nano structures on the surface have a wide range of applications in the fields of optical films, flexible electronics, and biochips. Using the roll-to-roll thermal roller embossing technology, the micro-nano structure can be formed on the surface of the polymer substrate with large area, high efficiency, low cost and high precision. The roll-to-roll hot roll embossing technology combines the roll-to-roll production method with the traditional flat hot embossing process, so that the thermoplastic polymer substrate to be imprinted is continuously rolled between the mold roll and the support roll At the same time, the temperature rises to soften and fill the mold cavity under pressure, so as to realize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C59/04
CPCB29C59/021B29C59/022B29C59/043B29C2059/023
Inventor 彭林法王晋邓宇君易培云来新民
Owner SHANGHAI JIAO TONG UNIV
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