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Preparation method for rapidly-formed light-cured resin

A light-curing resin and fast technology, which is applied in the field of rapid prototyping light-curing resin preparation, can solve the problems of inability to promote industrialization, affect the development of new technologies, complicated processes, etc., and achieve the effects of saving preparation costs, being easy to operate, and simplifying the preparation method.

Inactive Publication Date: 2018-03-09
SHAANXI SHENGMAI PETROLEUM
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  • Abstract
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Problems solved by technology

Most of its preparation process still uses the experimental method of the laboratory, the process is relatively complicated, and it cannot be industrialized on a large scale, which affects the development of new technologies in related industries

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] A kind of photocurable resin preparation method of rapid prototyping is characterized in that comprising the steps:

[0013] (1) Pour the epoxy resin into a flask equipped with a stirrer and temperature control facilities, and pass in nitrogen for protection, heat up, add hydroquinone inhibitor, and stir evenly;

[0014] (2) Weigh acrylic acid according to the ratio of epoxy resin to acrylic acid substance 1:2, add tetrabutylammonium bromide, stir until it is completely dissolved, pour it into a constant pressure dropping funnel, and start adding the mixed solution dropwise. About 2s per drop, slowly warming up;

[0015] (3) After the reaction is stable, take samples at intervals and measure the acid value, stop heating until the acid value is less than 5mg / g KOH, and the product is the resin produced.

[0016] In the method for preparing a rapid prototyping photocurable resin according to the present invention, the heating temperature in step (1) is 60-80°C. The heat...

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Abstract

The invention discloses a preparation method for a rapidly-formed light-cured resin, and belongs to the field of the material preparation. The preparation method comprises the following steps: pouringan epoxy resin into a flask with a stirrer and a temperature control device, and feeding nitrogen for protection, heating, adding a hydroquinone polymerization inhibitor, and uniformly stirring; weighing an acrylic acid according to the molar weight of the epoxy resin, adding tetrabutylammonium bromide, and stirring until all are completely dissolved, pouring into a constant pressure dropping funnel, dropwise adding mixed solution, wherein each drop is about 2 s, and slowly warming; and interval-sampling after the reaction is stable, and measuring an acid value, stopping heating while the acid value is less than 5 mg / g KOH, to obtain a product which is the prepared resin. Through the effective improvement of a technology, the preparation method for the light-cured resin is simplified, andthe prepared resin has the low viscosity, so the resin can be rapidly leveled. The operation is easy, the curing rate is high, the forming speed is improved, the preparation process is simplified, and the preparation cost is saved. The preparation method is suitable for popularization and application in the related field.

Description

technical field [0001] The invention belongs to the field of material preparation, in particular to a method for preparing a rapid prototyping photocurable resin. Background technique [0002] With the rapid development of science and technology, rapid prototyping photocuring technology is a new green and environmentally friendly technology developed in the 1980s. It is a new technology that fundamentally changes the traditional manufacturing method and promotes the rapid development of the modern manufacturing industry. In the rapid prototyping photocuring technology, the photocurable resin directly affects the precision of the manufactured product and the performance of the product. Most of its preparation process still uses the experimental method of the laboratory, the process is relatively complicated, and it cannot be industrialized on a large scale, which affects the development of new technologies in related industries. Contents of the invention [0003] The pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/14
CPCC08G59/1477
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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