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A kind of organosilicon material for 3D printer resin tank and preparation method thereof

A 3D printer and resin tank technology, applied in the field of chemical materials for stereolithography rapid prototyping, can solve the problems of low light transmittance of the bottom layer of the resin tank, low light transmittance of the transparent soft layer, and reduced curing rate of the photosensitive resin. Excellent processing performance, good light stability, no decrease in light transmittance

Active Publication Date: 2019-07-09
GUANGDONG HENGDA NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the transparent soft layer commonly used in 3D printer resin tanks has problems such as low light transmittance and poor mold release.
The low light transmittance at the bottom of the resin tank will affect the laser beam, which may cause the curing rate of the photosensitive resin to decrease and fall off from the workbench; in addition, the high surface tension at the bottom of the resin tank may cause excessive tension when the parts and the resin tank are separated Causes parts to fall off the bench, or damage to the resin tank surface after prolonged use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a transparent soft layer silicone material for a 3D printer resin tank, which is prepared by a preparation method comprising the following steps:

[0029] Step a: Preparation of component A base glue: Add 99.4 parts of methyl vinyl silicone oil with a viscosity of 5000 mPa·s and a mass fraction of vinyl of 2% in the reaction vessel, 0.6 parts of platinum catalyst, Under the condition of stirring, the materials in the reaction container are mixed evenly to obtain the A-component base glue;

[0030] Step b: Preparation of B-component base glue: Add 70.9 parts of methyl vinyl silicone oil with a viscosity of 7000 mPa s and a mass fraction of vinyl of 2% in the reaction vessel, with a viscosity of 1000 mPa s and a mass fraction of hydrogen atoms 25 parts of 0.8% crosslinking agent methyl hydrogen silicone oil, 0.1 part of inhibitor methyl vinyl cyclosiloxane, 4 parts of excipient γ-glycidyl etheroxypropyl trimethoxysilane, at a temperature of 25 ℃ ...

Embodiment 2

[0033]This embodiment provides a transparent soft layer silicone material for a 3D printer resin tank, which is prepared by a preparation method comprising the following steps:

[0034] Step a: Preparation of component A base glue: Add 99.4 parts of a mixture of methyl vinyl silicone oil and methyl vinyl MQ silicone resin with a total viscosity of 7000 mPa s and a total vinyl mass fraction of 1% in the reaction vessel , 0.6 parts of platinum catalyst, stirred at a temperature of 25° C., so that the materials in the reaction vessel were evenly mixed to obtain component A base glue;

[0035] Step b: Preparation of component B base glue: Add 65.9 parts of methyl vinyl silicone oil with a viscosity of 3000 mPa s and a mass fraction of vinyl of 1% in the reaction vessel, with a viscosity of 500 mPa s and a mass fraction of hydrogen atoms 0.3% crosslinking agent methyl hydrogen silicone oil 30 parts, inhibitor methyl vinyl cyclosiloxane 0.1 part, excipient γ-glycidyl etheroxypropyl ...

Embodiment 3

[0038] This embodiment provides a transparent soft layer silicone material for a 3D printer resin tank, which is prepared by a preparation method comprising the following steps:

[0039] Step a: Preparation of component A base glue: Add 99.6 parts of a mixture of methyl vinyl silicone oil and methyl vinyl MQ silicone resin with a total viscosity of 7000 mPa s and a total vinyl mass fraction of 2% in the reaction vessel , 0.4 parts of platinum catalyst, stirred at a temperature of 25° C., so that the materials in the reaction vessel were evenly mixed to obtain component A base glue;

[0040] Step b: Preparation of component B base glue: Add 74.9 parts of a mixture of methyl vinyl silicone oil and methyl vinyl MQ silicone resin with a total viscosity of 5000 mPa s and a total vinyl mass fraction of 1% in the reaction vessel , 20 parts of crosslinking agent methyl hydrogen silicone oil with a viscosity of 1000mPa·s and a hydrogen atomic mass fraction of 0.7%, 0.1 part of inhibito...

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Abstract

The invention relates to an organic silicon material of a transparent soft layer for a resin tank of a 3D (three-dimensional) printer. The organic silicon material is high in light transmittance and easy for demoulding and prepared from a component A base rubber and a component B base rubber in a mass ratio of 1:(1+ / -0.2). The component A base rubber is prepared from, by weight, 99.4-99.9 parts of vinyl methylpolysilicone and 0.1-0.6 part of a platinum catalyst. The component B base rubber is prepared from, by weight, 55-85 parts of vinyl methylpolysilicone, 10-40 parts of a crosslinking agent, 0.01-0.1 part of an inhibitor and 1-5 parts of auxiliary materials. The invention further discloses a preparation method of the organic silicon material of the transparent soft layer for the resin tank of the 3D printer. The preparation method is simple in process and has no special requirements on equipment, and the prepared organic silicon material of the transparent soft layer for the resin tank of the 3D printer is high in photostability.

Description

technical field [0001] The invention relates to the technical field of chemical materials for stereolithography rapid prototyping, in particular to a transparent soft layer organic silicon material for a 3D printer resin tank and a preparation method thereof. Background technique [0002] 3D printing is also called additive manufacturing technology. In the late 1980s, 3D Systems in the United States first launched a commercial 3D printer. This molding machine can fully automatically manufacture complex three-dimensional objects that are difficult to produce by various processing methods. , which makes the manufacture of complex parts simple and fast, and has epoch-making significance in the field of processing technology. At present, the more mature 3D printing processes mainly include fused filament deposition rapid prototyping, paper laminate rapid prototyping, selective laser sintering rapid prototyping and stereolithography rapid prototyping. The basic working principle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08K5/5435
CPCC08L83/04C08L2201/08C08L2201/10C08L2205/025C08L2205/03C08L2205/035C08K5/5435
Inventor 郑铮何金文杨伟胜关怀龙正宇周为民
Owner GUANGDONG HENGDA NEW MATERIALS TECH
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