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A kind of 3D printing mud and preparation method thereof

A technology of 3D printing mud and polysiloxane, applied in the direction of additive processing, etc., can solve the problems of products becoming dry and hard, unable to be used again, and achieve the effect of soft hand feeling, safe use and lower specific gravity

Active Publication Date: 2022-03-04
ZHEJIANG XINAN CHEM INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solvent in the product is used to maintain the plasticity and moisture of the plasticine, but with the increase of time and frequency of use, the solvent in the product will gradually volatilize, making the product dry and hard, so that it cannot be used again

Method used

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  • A kind of 3D printing mud and preparation method thereof
  • A kind of 3D printing mud and preparation method thereof
  • A kind of 3D printing mud and preparation method thereof

Examples

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preparation example Construction

[0026] An embodiment of the present invention provides a method for preparing 3D printing mud, comprising: mixing filler, polysiloxane, coupling agent, and activator according to a certain ratio; heating and reacting to form 3D printing mud.

[0027] Wherein, the polysiloxane is a polysiloxane containing active groups, which can react with the coupling agent and the filler to enhance the adhesion between the matrix and the filler and prevent the thixotropy of the product. The powder dropping phenomenon of fillers; then by adding an activator, the break and repair of the chemical bond between the coupling agent and polysiloxane can be adjusted, the movement of the molecular segment can be strengthened, and the plasticity of the product can be improved. The printing paste prepared by this method is smooth Slippery and easy to shape, soft, non-sticky, non-sticky, no slag, and long service life, effectively inhibiting bacteria and mold and other excellent characteristics. It is al...

Embodiment 1

[0051] With 40 parts by weight of silica hollow nanospheres (density is 0.2g / cm 3 , particle size is 2μm), 20 parts by weight of (dynamic viscosity is 50mPa s), 10 parts by weight of methyl orthosilicate, and 0.5 parts by weight of citric acid are dropped into the kneader, and the stirring is started to make it fully mixed;

[0052] Raise the temperature of the kneader to 100°C, react for 240 minutes, and then lower the temperature to 50°C to obtain 3D printing paste.

[0053] The 3D printing mud obtained in this embodiment was tested, and its parameters are shown in Table 1 and Table 2.

[0054] The parts by weight in this embodiment can be g, kg, etc., and it is g here, and the following examples and comparative examples are also g.

Embodiment 2

[0056] 70 weight parts of hollow glass microspheres (density of 0.6g / cm 3 , particle size is 150μm), 35 parts by weight of (dynamic viscosity is 20000mPa s), the aluminum methoxide of 20 weight parts, the palmitic acid of 8 weight parts drop in the kneader, start stirring, make it fully mix;

[0057] Raise the temperature of the kneader to 300°C, react for 30 minutes, and then lower the temperature to 40°C to obtain 3D printing paste.

[0058] The 3D printing mud obtained in this embodiment was tested, and its parameters are shown in Table 1 and Table 2.

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Abstract

The invention relates to a 3D printing mud and a preparation method thereof, comprising: mixing a filler, a polysiloxane, a coupling agent and an activator according to a certain proportion; heating and reacting to form a 3D printing mud. This method utilizes the reaction between the coupling agent and the reactive polysiloxane to increase the viscosity between the printing paste and the paste, and then adjusts the relationship between the coupling agent and the polysiloxane by adding an activator. The breaking and repairing of the chemical bonds of the hollow ions greatly reduces its specific gravity through the introduction of hollow ions, so that it is light in weight, smooth and easy to shape, lubricated and soft, non-slippery, non-sticky, non-slagging, and has a long service life. Effectively inhibit bacteria and mold and other excellent properties.

Description

technical field [0001] The invention relates to the technical field of handicraft production, and more specifically, to a 3D printing mud and a preparation method thereof. Background technique [0002] Plasticine and printing clay toys currently on the market are usually prepared with water and humectants supplemented with resins and light fillers. After a period of playing, the products tend to harden, dry and crack, making them The original soft feel cannot be reproduced, the plasticity is reduced, and it cannot be reused. [0003] CN102939624A discloses a method for preparing plasticine for manual use. The inorganic compound with excellent transparency is used as the only component of the product, and it is made of siloxane and polysiloxane—dimethyl, methyl vinyl, vinyl end capping— - the gel-type polysiloxane body that accounts for 60-80% of the total weight of the plasticine that is mixed and formed; the plasticity regulator that contains powdered silicon dioxide for a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L25/06C08K13/04C08K7/26C08K7/28C08K7/24C08K5/092C08K5/5415C08K5/09C08K5/55C08K3/38B33Y70/10
CPCC08L83/04C08K13/04C08K7/26C08K7/28C08K7/24C08K5/092C08K5/5415C08K5/09C08K5/55B33Y70/10C08K2201/011C08L2205/20C08K2003/387C08K2201/014C08L25/06C08K3/38C08K5/10
Inventor 李遵陕吴翠刘继李庆邵月刚杨旭徐亚卿余声
Owner ZHEJIANG XINAN CHEM INDAL GROUP
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