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Preparation method of light-cured molded product and light-cured molded product

A light-curing molding and photo-curing technology, which is applied in the preparation of photo-curing molding products and the field of photo-curing molding products, can solve the problems of limited materials and expensive 3D printing equipment, and achieve rapid curing, adjustable film thickness, and simplicity easy-to-handle effects

Active Publication Date: 2021-07-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a photocuring preparation method and a photocuring molding method in order to overcome the defects in the prior art that require 3D printing equipment and corresponding materials to correspond to lead to limited materials, and the problem that 3D printing equipment is relatively expensive. Products, this method has no restrictions on materials, and does not require 3D printing. It only needs light-curing resin and ultraviolet equipment in the corresponding band. It has the advantages of fast curing and easy operation, and the prepared light-curing molded products have excellent tensile strength. Performance and Impact Properties

Method used

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  • Preparation method of light-cured molded product and light-cured molded product
  • Preparation method of light-cured molded product and light-cured molded product
  • Preparation method of light-cured molded product and light-cured molded product

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preparation example Construction

[0023] The first aspect of the present invention provides a method for preparing a light-cured molded product, wherein the method includes the following steps:

[0024] (1) Prepare the first to nth hollow diaphragms, n≥1;

[0025] (2) Coating the hollow part of the first hollow diaphragm with a photocuring material and performing photocuring;

[0026] (3) placing the second hollow diaphragm on top of the diaphragm after step (2), and then coating the hollow part of the second hollow diaphragm with a photocurable material and performing photocuring;

[0027] (4) Step (3) is repeated, and the layers are superimposed and cured until the photo-curable material coated on the hollow part of the nth hollow diaphragm is cured.

[0028] In the present invention, the value of n is not specifically limited, and it is determined according to the size of the prepared three-dimensional object. Preferably, the larger the value of n, the thinner the thickness of the prepared hollow membrane ...

Embodiment approach

[0042] According to a preferred embodiment of the present invention, the preparation method of the light-cured molded product comprises:

[0043] (1) Prepare several hollow diaphragms according to the three-dimensional object to be prepared, that is, prepare a hollow material whose internal structure is the same as that of the three-dimensional object to be prepared, and then punch the hollow material to obtain n diaphragms , marked as the 1st hollow diaphragm, the 2nd hollow diaphragm, until the nth hollow diaphragm;

[0044] (2) Make a positioning plate, which has 4 positioning hole columns, first fix the first release film on the positioning plate, and place the first hollow diaphragm on the first release film and place it on the positioning plate. The hollow part of the first hollow diaphragm is coated with a photocurable material, or the hollow part and the solid part are coated with a photocurable material, and then the second release film is covered on the photocurable ...

Embodiment 1

[0062] This embodiment is to illustrate the light-cured molded product prepared by the preparation method of the present invention.

[0063] The schematic diagram of the light-cured molding product to be prepared in this embodiment is as follows figure 2 shown.

[0064] (1) Preparation: select a hollow material, wherein the internal structure of the hollow material is as follows: figure 2 As shown, and the material of the hollow material is PET sheet; the release film is purchased from Guangzhou Luzhuo, and the specification is transparent_10m*1.55m*0.1mm; and the light-curing material includes photosensitive resin polyacrylic resin, photoinitiator It is TPO; in addition, make a positioning plate, which has 4 positioning holes;

[0065] (2) Fix the hollow material on the punching machine, and the press cuts out the first to third diaphragms at a time, and numbers them in sequence 1, 2, and 3 to make punched sheets;

[0066] (3) First fix a release film (first release film...

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Abstract

The invention relates to the technical field of photocuring molding, and discloses a preparation method of a photocuring molding product and the photocuring molding product. Wherein, the method includes steps: (1) preparing the first to nth hollow membranes, n≥1; (2) coating the hollow part of the first hollow membrane with a photocuring material and performing photocuring; (3 ) place the second hollow diaphragm on the diaphragm after step (2), and then apply photocurable material to the hollow part of the second hollow diaphragm and carry out photocuring; (4) repeat step (3 ), stacking and curing layer by layer until the photocurable material coated on the hollow part of the nth hollow diaphragm is cured. The method of the present invention has the advantages of unlimited light-curing materials, no need for 3D printing equipment, rapid curing, and adjustable film thickness, and the prepared light-curing molded product has excellent tensile properties and impact properties.

Description

technical field [0001] The invention relates to the technical field of photocuring molding, in particular to a method for preparing a photocuring molding product and the photocuring molding product. Background technique [0002] 3D printing is an additive manufacturing method opposite to traditional subtractive manufacturing. It uses a series of cross-linking reactions triggered by free radical chain polymerization when monomers in photocurable resin encounter certain wavelengths of ultraviolet light, thus forming a A new substance with a certain structure and strength. [0003] CN107921702A discloses a method and apparatus for building a 3D object from multiple layers of pre-stripped substrates, wherein each object layer is formed by: (i) providing a substrate comprising each other A waste portion and a substrate remaining portion attached and separated from each other by a cut in the substrate; (ii) subsequently, subjecting each layer of the processed object to a peeling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B33Y10/00
CPCB33Y10/00B29C64/106
Inventor 房爱梅崔静娜张家鑫
Owner BYD CO LTD