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Polycarbonate composite material for 3D printing and preparation method thereof

A polycarbonate, 3D printing technology, applied in coating and other directions, can solve the problem of high 3D printing temperature, achieve the effect of simple preparation process, easy promotion and application, and broad market prospects

Active Publication Date: 2014-12-17
TAICANG BIQI NEW MATERIAL RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high temperature of 3D printing, it cannot be used in fields that require low-temperature preparation, such as organic electronic devices.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Crush 50g of polycarbonate with a viscosity-average molecular weight of 10,000-40,000 into 100-120 mesh particles; under nitrogen atmosphere, mix 5g of N-aminoethyl-γ-aminopropyltriethoxysilane with 20g of ethyl acrylate , add 2g of cyclodextrin, stir at room temperature for 60 minutes, then add 2g of ferrocenecarboxylic acid, 21g of ethyl methacrylate, and stir for 60 minutes at room temperature, then add 50g of polycarbonate particles, heat to 60°C, and stir for 180 minutes. Cool to room temperature to obtain a polycarbonate composite material for 3D printing.

[0024] The material is 3D printed at 70°C, and the density of the material after molding is 1.22g / cm 3 , the tensile strength is 78MPa, the shrinkage rate is 0.88%, and the dielectric constant is 3.0.

Embodiment 2

[0026] Crush 40g of polycarbonate with a viscosity-average molecular weight of 10,000-40,000 into 100-120 mesh particles; mix 20g of N-aminoethyl-γ-aminopropyltriethoxysilane with 19g of ethyl acrylate in a nitrogen atmosphere , add 0.5g cyclodextrin, stir at room temperature for 30 minutes, then sequentially add 0.5g ferrocenecarboxylic acid, 20g ethyl methacrylate, stir at room temperature for 30 minutes, then add 40g polycarbonate particles, heat to 40°C, stir for 120 Minutes, cooled to room temperature, obtained polycarbonate composite material for 3D printing.

[0027] The material is 3D printed at 50°C, and the density of the material after molding is 1.20g / cm 3 , the tensile strength is 101MPa, the shrinkage rate is 0.88%, and the dielectric constant is 3.0.

Embodiment 3

[0029] Crush 40g of polycarbonate with a viscosity-average molecular weight of 10,000-40,000 into 100-120 mesh particles; under nitrogen atmosphere, mix 8g of N-aminoethyl-γ-aminopropyltriethoxysilane with 20g of ethyl acrylate , add 1g of cyclodextrin, stir at room temperature for 30 minutes, then add 1g of ferrocenecarboxylic acid, 30g of ethyl methacrylate, and stir for 40 minutes at room temperature, then add 40g of polycarbonate particles, heat to 50°C, and stir for 150 minutes. Cool to room temperature to obtain a polycarbonate composite material for 3D printing.

[0030] The material is 3D printed at 60°C, and the density of the material after molding is 1.26g / cm 3 , the tensile strength is 84MPa, the shrinkage rate is 1.08%, and the dielectric constant is 3.2.

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Abstract

The invention provides a polycarbonate composite material for 3D printing and a preparation method thereof. The preparation method of the polycarbonate composite material comprises the following steps: mixing N-aminoethyl-gamma-aminopropyl triethoxy silane with ethyl acrylate, adding ethyl methacrylate, then sequentially adding cyclodextrin and ferrocenecarboxylic acid, then adding polycarbonate particles, heating, stirring and cooling, wherein the content of polycarbonate is 40-50%, the content of N-aminoethyl-gamma-aminopropyl triethoxy silane is 5-20%, the content of ethyl acrylate is 5-20%, the content of ethyl methacrylate is 10-30%, the content of cyclodextrin is 0.5-2%, and the content of ferrocenecarboxylic acid is 0.5-2%. The preparation method of the polycarbonate composite material for 3D printing is simple in technology, and the prepared polycarbonate composite material can be used for carrying out 3D printing in a temperature range of 50-70 DEG C, can not block a nozzle of a 3D printer and can be applied to the fields of automobile manufacturing, medical devices, aviation, aerospace, electronics and the like.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a polycarbonate composite material for 3D printing and a preparation method thereof. Background technique [0002] There are a wide variety of 3D printing materials, which can be classified according to the type of material, which can be ceramics (such as alumina, zirconia, zirconium silicate, silicon carbide), metal, plastic, gypsum, starch, or composite materials. The material composition and proportion of powder materials have an important impact on the accuracy, strength, surface quality and reliability of the forming process of 3D printing. The powder composition formula is a multi-component system. In addition to the main influence of the formula material components on the performance of the part, there is also the interaction effect between various factors, which is a multi-factor and multi-level influence problem. The light-curing 3D printing equipment of Isra...

Claims

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Application Information

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IPC IPC(8): C09D4/02C08L5/16C09D4/06C08K5/544C08K5/101C08L69/00
Inventor 蓝碧健
Owner TAICANG BIQI NEW MATERIAL RES & DEV
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