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3D printing mud and preparation method thereof

A 3D printing mud and polysiloxane technology, applied in the direction of additive processing, etc., can solve the problems of being unable to be used again, the product becomes dry and hard, and achieves the effect of safe use, soft hand feeling and light texture

Active Publication Date: 2021-02-26
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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  • 3D printing mud and preparation method thereof
  • 3D printing mud and preparation method thereof
  • 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 3D printing mud and a preparation method thereof. The preparation method comprises the steps that a filler, polysiloxane, a coupling agent and an activating agent are mixed according to a certain proportion; and heating is conducted for reaction to form the 3D printing mud. According to the method, the viscosity among printing mud, mud and mud is increased by utilizing thereaction between the coupling agent and polysiloxane with reaction activity, then the fracture and repair of chemical bonds between the coupling agent and polysiloxane are adjusted by adding the activating agent, and the specific gravity of the printing mud is greatly reduced by introducing hollow ions, so that the printing mud has the characteristics of light weight, smoothness, easiness in molding and the like. The 3D printing mud has the advantages of being smooth, soft, non-greasy, non-sticky, free of slag falling, long in service life, capable of effectively inhibiting bacteria and mouldand the like.

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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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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