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Stereo-lithography rapid-prototyping cationic polysiloxane photosensitive resin composition and preparation method and application thereof

A polysiloxane-based, cationic technology, applied in the direction of photomechanical equipment, optics, pattern surface photoplate making process, etc.

Inactive Publication Date: 2016-01-27
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specific to stereolithography rapid prototyping cationic polysiloxane-based photosensitive resin and its preparation have not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the 5000 ml glass three-neck flask equipped with stirrer and condenser tube, add double-end glycidoxypropyl polysiloxane (molecular weight is 50000) 2210.0g, polyglycidoxypropyl polysiloxane ( The molecular weight is 2000) 546.0g, bis(glycidoxypropyl)tetramethyldisiloxane 380.0g, glycidyl neodecanoate 450.g, triaryl sulfonium hexafluorophosphate 46.0g. Heat and stir until it becomes a transparent light yellow homogeneous liquid, which is a prepared photosensitive resin. Using the prepared photosensitive resin as a material, 3D printing works can be produced by using an ultraviolet 3D printer.

Embodiment 2

[0028] In a 5000 ml glass three-necked flask equipped with a stirrer and a condenser tube, add double-ended glycidoxypropyl polysiloxane (molecular weight is 2000) 400.0g, polyglycidoxypropyl polysiloxane ( The molecular weight is 50000) 120.0g, tetrakis (glycidoxypropyl) tetramethylcyclotetrasiloxane 2100.0g, cresyl glycidyl ether 560.0g, 10-(4-biphenyl)-2-isopropylthio Xanthone hexafluorophosphate 40.0 g. Heat and stir until it becomes a transparent light yellow uniform liquid, which is a prepared photosensitive resin.

Embodiment 3

[0030] In the 5000 ml glass three-neck flask equipped with stirrer and condenser tube, add double-end glycidoxypropyl polysiloxane (molecular weight is 20000) 1500.0g, polyglycidoxypropyl polysiloxane ( The molecular weight is 25000) 310.0g, bis(glycidoxyethyl) hexamethyltrisiloxane 930.0g, trimethylolpropane triglycidyl ether 450.0g, bis 2,6-difluoro-3-pyrrole benzene Base titanocene 60.0g. Heat and stir until it becomes a transparent light yellow uniform liquid, which is a prepared photosensitive resin.

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PUM

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Abstract

The invention relates to a stereo-lithography rapid-prototyping cationic polysiloxane photosensitive resin composition and its preparation method and application. The stereo-lithography rapid-prototyping cationic polysiloxane photosensitive resin composition mainly comprises the following raw materials (by weight): 10-85% of double-side polysiloxane containing an epoxide group, 3-21% of polyepoxy polysiloxane, 10-60% of a polysiloxane diluents containing an epoxy group and 1.0-4.0% of a cationic initiator. The raw materials are mixed according to the above ratio and the mixed raw materials are stirred and heated to obtain a transparent liquid, namely the stereo-lithography rapid-prototyping polysiloxane photosensitive resin. After stereo-lithography prototyping, the stereo-lithography rapid-prototyping polysiloxane photosensitive resin has rapid-prototyping characteristic of photosensitive resin and also has polysiloxane characteristic of high and low temperature resistance. A component molded by the use of the photosensitive resin has advantages of low shrinkage, high product precision, good heat resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of 3D printing rapid prototyping manufacturing, and in particular relates to a stereolithography rapid prototyping cationic polysiloxane-based photosensitive resin composition and a preparation method thereof. Background technique [0002] 3D printing rapid prototyping manufacturing technology is computer-designed 3D graphics, based on the principle of discrete accumulation, and according to the three-dimensional computer digital model, the method of layer-by-layer accumulation is used to form parts. The process has no model point, and has unparalleled advantages in the small batch trial production stage of new product development. [0003] Stereolithography rapid prototyping technology uses light of a specific wavelength and intensity to focus on the surface of the photocurable material, making it sequentially solidified from point to line, from line to surface, and completing the drawing operation of one l...

Claims

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Application Information

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IPC IPC(8): G03F7/075
Inventor 马凤国魏燕彦林润雄
Owner QINGDAO UNIV OF SCI & TECH
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