Roll-to-roll hot rolling powder forming method and system for thin polymer film surface microstructure

A polymer film, hot rolling technology, used in household appliances, other household appliances, flat products, etc., can solve the problems of less than 20% light emitting efficiency, no way to process powdery raw materials, and less than 60% light utilization rate.

Inactive Publication Date: 2017-05-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of organic light-emitting diode (OLED) flexible display is less than 1mm, which can be bent arbitrarily, but the light is reflected on the interface due to the difference in the refractive index of the material, resulting in a light extraction efficiency of less than 20%.
Thin-film solar cells can be laid on curved surfaces, but the utilization rate of light is less than 60%
However, this patent is for processing film coils, and there is no way to directly process and shape powdered raw materials.

Method used

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  • Roll-to-roll hot rolling powder forming method and system for thin polymer film surface microstructure
  • Roll-to-roll hot rolling powder forming method and system for thin polymer film surface microstructure
  • Roll-to-roll hot rolling powder forming method and system for thin polymer film surface microstructure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Roll-to-roll hot rolling polymer film surface microstructure powder forming system, such as figure 1 As shown, the present embodiment comprises: unwinding roller 1, the first driving roller 6, the second driving roller 11, the third driving roller 18, the fourth driving roller 20 and the fifth driving roller 25, the first transmission roller 2, the second driving roller The second conveying roller 5, the third conveying roller 7, the fourth conveying roller 9, the fifth conveying roller 10, the sixth conveying roller 16, the seventh conveying roller 17, the eighth conveying roller 19, the ninth conveying roller 22 and the tenth conveying roller Roller 26, first tension roller 8 and second tension roller 21, pressure roller 12, mold roller 14, cooling roller 15, powder supply device 13, winding roller 27, first deviation correction device 3, second deviation correction device 4 , the third deviation correcting device 23 and the fourth deviation correcting device 24 .

...

Embodiment 2

[0049] Roll-to-roll hot rolling polymer film surface microstructure powder forming system, such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the powder supply device 13 is placed directly above the mold roller 14 .

[0050] First, heat the mold roller at 14 to 140°C, set the speed at 0.1m / min, put PE polymer powder through the powder inlet, start the motor to control the stirring device to stir the powder in the powder supply device 13 at a certain speed, and adjust the powder supply device The powder supply port of 13 is directly above the mold roller 14, then open the powder supply port, and evenly spread a PE polymer powder layer with a thickness of about 200um on the surface of the mold roller 14, set the pressure of the pressure roller 12 to 700N, and press the pressure roller 12 to the mold. The movement of the roller 14 drives the PET base material to press and contact with the mold roller 14. The polymer powder is pressed to fo...

Embodiment 3

[0052] Roll-to-roll hot rolling polymer film surface microstructure powder forming system, such as image 3 As shown, the present embodiment comprises: unwinding roller 1, the first driving roller 6, the second driving roller 11, the third driving roller 18, the fourth driving roller 20 and the fifth driving roller 25, the first transmission roller 2, the second driving roller The second conveying roller 5, the third conveying roller 7, the fourth conveying roller 9, the fifth conveying roller 10, the sixth conveying roller 16, the seventh conveying roller 17, the eighth conveying roller 19, the ninth conveying roller 22 and the tenth conveying roller Roller 26, first tension roller 8 and second tension roller 21, pressure roller 12, mold roller 14, cooling roller 15, powder supply device 13, winding roller 27, first deviation correction device 3, second deviation correction device 4 , the third deviation correction device 23 and the fourth deviation correction device 24, the ...

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Abstract

The invention relates to a roll-to-roll hot rolling powder forming method and system for a thin polymer film surface microstructure. The method includes the steps that a base material is sent out through an unwinding roller, and then is evenly wrapped with polymer powder through a powder feeding device; heating, forming, cooling and tensile force adjusting are carried out; and finally, winding is performed through a winding roller. The system comprises the unwinding roller, driving rollers, transfer rollers, tensioning rollers, deviation rectifying devices, a pressure roller, a mold roller, a cooling roller, the powder feeding device and the winding roller, wherein the driving rollers, the transfer rollers, the tensioning rollers and the deviation rectifying devices are arranged in the conveying process; the pressure roller, the mold roller and the cooling roller are arranged in the conveying process and are connected with one another; and the powder feeding device is arranged between the pressure roller and the mold roller or above the mold roller. By the adoption of the method and system, good mobility of the polymer powder is adopted, mold filling time is shortened, and the rolling speed is greatly increased; moreover, material deformation is small, the microstructure resilience is small after demolding, and structural precision is high; and meanwhile, ingredients of the powder can be composed of various materials, raw materials of the powder can be allocated according to the application requirements, and thus a thin polymer film with different optical characteristics can be prepared.

Description

technical field [0001] The invention relates to the field of micro-manufacturing, in particular to a roll-to-roll hot rolling polymer film surface microstructure powder forming method and system. Background technique [0002] In recent years, new energy and energy-saving technologies, new media and information technologies have developed rapidly, and optical thin films with surface microstructures have received widespread attention, and their typical representatives are flexible flat panel displays and thin-film solar cells. The organic light-emitting diode (OLED) flexible display is less than 1 mm thick and can be bent arbitrarily, but light is reflected on the interface due to the difference in the refractive index of the material, resulting in a light extraction efficiency of less than 20%. Thin-film solar cells can be laid on curved surfaces, but the utilization rate of light is less than 60%. Processing microstructures on the surface of optical films is an effective me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/28B29C43/46B29C43/52B29L7/00
CPCB29C43/28B29C43/46B29C43/52B29C2043/461B29L2007/00
Inventor 彭林法舒赟翌易培云邓宇君来新民
Owner SHANGHAI JIAO TONG UNIV
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