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

A polysiloxane-based, photosensitive resin technology, used in photosensitive materials for optomechanical devices, optomechanical devices, optics, 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 free radical 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

[0024] In a 5000 ml glass three-neck flask equipped with a stirrer and a condenser tube, add 1700 g of double-ended acrylate-based polysiloxane (molecular weight is about 1000), polyacryloxypropyl modified polysiloxane (molecular weight: 50000 or so) 420.0g, diluent bis(acryloxypropyl)tetramethyldisiloxane 60g and lauryl acrylate 600g, methyl benzoylformate and 2-hydroxy-2-methyl-1-[4 40 g each of -(2-hydroxyethoxy)phenyl]-1-propanone. Heat and stir until it becomes a transparent light yellow homogeneous liquid, which is a prepared photosensitive resin.

Embodiment 2

[0026] In a 5000 ml glass three-neck flask equipped with a stirrer and a condenser tube, add 1000 grams of double-ended acrylate-based polysiloxane (molecular weight is about 50,000), polyacryloxypropyl modified polysiloxane (molecular weight about 300) 300 grams, 500 grams of diluent bis(methacryloxypropyl) hexamethyltrisiloxane and 500 grams of 1,6-hexanediol diacrylate, 2-isopropylthia Anthrone 40g and methyl phthaloylbenzoate 40g. Heat and stir until it becomes a transparent light yellow homogeneous liquid, which is a prepared photosensitive resin.

Embodiment 3

[0028] In a 5000 ml glass three-neck flask equipped with a stirrer and a condenser tube, add 1000 grams of double-ended acrylate-based polysiloxane (molecular weight is about 22000), polyacryloxypropyl modified polysiloxane (molecular weight 24000 or so) 300 grams, diluent two (acryloxypropyl) octamethyltetrasiloxane 1000 grams and pentaerythritol tri (meth) acrylate 1000 grams, polytetramethylene glycol 250 two - (2- carboxymethyl Oxythioxanthone) ester 60g and 2,2-dimethoxy-1,2-benzophenone 60g. Heat and stir until it becomes a transparent light yellow homogeneous 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 polysiloxane photosensitive resin composition and its preparation method and application. The stereo-lithography rapid-prototyping polysiloxane photosensitive resin composition mainly comprises the following raw materials (by weight): 10-85% of double-side acrylate polysiloxane, 3-21% of polyacrylate polysiloxane, 10-60% of an acrylate polysiloxane diluent, 10-60% of an acrylate diluents and 1.0-4.0% of a radical 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 composition 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 high 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 free radical polysiloxane-based photosensitive resin composition and a preparation method thereof. Background technique [0002] 3D printing technology is based on the computer three-dimensional design model, through the software layered discrete and numerical control forming system, using laser beams, hot-melt nozzles, etc. to accumulate metal powder, ceramic powder, plastic, cell tissue and other special materials layer by layer Bonding, and finally overlaying and molding to create a solid product. Unlike the traditional manufacturing industry, which shapes and cuts raw materials through mechanical processing methods such as moulds, turning and milling to finally produce finished products, 3D printing transforms a three-dimensional entity into several two-dimensional planes. The complexity of...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/027
Inventor 马凤国魏燕彦林润雄
Owner QINGDAO UNIV OF SCI & TECH
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