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Carbon fiber/ABS composite material for 3D printing and preparation method thereof

A composite material and 3D printing technology, applied in the direction of additive processing, etc., can solve problems such as large shrinkage rate and warpage of parts, achieve the effect of improving bonding ability, ensuring processing performance and mechanical properties, and preventing bending

Inactive Publication Date: 2019-03-08
JILIN INST OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ABS resin has good processability and durability, and its price advantage is significantly lower than that of PLA. It should be widely used in FDM technology. However, its shrinkage rate during cooling is large, which often makes the prepared parts warped. Quotation problem, thus limited by

Method used

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  • Carbon fiber/ABS composite material for 3D printing and preparation method thereof
  • Carbon fiber/ABS composite material for 3D printing and preparation method thereof
  • Carbon fiber/ABS composite material for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0022] Carbon fiber / ABS composite material for 3D printing, each component and its mass parts are: 0.3 part of magnesium stearate, 0.5 part of ethylene butyl acrylate, 0.15 part of distearyl pentaerythritol diphosphite, 0.15 part of distearyl pentaerythritol diphosphite, dipropionate disulfide 0.05 parts of stearyl ester, 21 parts of butadiene-styrene-acrylonitrile graft copolymer, and 77 parts of styrene-acrylonitrile copolymer. The mass ratio of butadiene, styrene and acrylonitrile is: 64:26:10; the melt index of styrene-acrylonitrile copolymer is 31.23g / 10min at 220°C and 10kg, and the N content is 7.2%. The bonded acrylonitrile content is 25%, and the number average molecular weight is 68000.

[0023] 210g high-impact butadiene-styrene-acrylonitrile terpolymer, 770g high-flow styrene-acrylonitrile binary copolymer, 3g magnesium stearate, 5g ethylene butyl acrylate, 1.5g distearyl After pentaerythritol diphosphite and 0.5g dioctadecyl dipropionate were fully mixed in a hig...

Embodiment 2

[0026] Carbon fiber / ABS composite material for 3D printing, each component and its mass parts are: 0.3 parts of magnesium stearate, 0.45 parts of ethylene butyl acrylate, 0.2 parts of distearyl pentaerythritol diphosphite, 0.2 parts of dipropionate disulfide 0.05 parts of stearyl ester, 32 parts of butadiene-styrene-acrylonitrile graft copolymer, and 62 parts of styrene-acrylonitrile copolymer. Among them, the mass ratio of butadiene, styrene and acrylonitrile is: 55:28:17; the melt index of styrene-acrylonitrile copolymer is 33.23g / 10min under the condition of 220°C and 10kg, and the N content is 6.8%. The bonded acrylonitrile content was 27%, and the number average molecular weight was 70,000.

[0027]320g high-impact butadiene-styrene-acrylonitrile terpolymer, 620g high-flow styrene-acrylonitrile binary copolymer, 3g magnesium stearate, 4.5g ethylene butyl acrylate, 2g distearyl After pentaerythritol diphosphite and 0.5g dioctadecyl dipropionate were fully mixed in a high-...

Embodiment 3

[0030] 3D printing carbon fiber / ABS material, its components and their mass parts are: 0.3 parts of magnesium stearate, 0.5 parts of ethylene butyl acrylate, 0.15 parts of distearyl pentaerythritol diphosphite, 0.15 parts of distearyl pentaerythritol diphosphite, dipropionate disulfide 0.05 parts of stearyl ester, 26 parts of butadiene-styrene-acrylonitrile graft copolymer, 69 parts of styrene-acrylonitrile copolymer, and 4 parts of surface-modified carbon fiber. Among them, the mass ratio of butadiene, styrene and acrylonitrile is 57:28:15; the melt index of styrene-acrylonitrile copolymer is 32.05g / 10min under the condition of 220°C and 10kg, and the N content is 7.0%. The content of acrylonitrile is 23%, and the number average molecular weight is 70000.

[0031] 260g high-impact butadiene-styrene-acrylonitrile terpolymer, 690g high-flow styrene-acrylonitrile binary copolymer, 3g magnesium stearate, 5g ethylene butyl acrylate, 1.5g distearyl After pentaerythritol diphosphit...

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Abstract

Disclosed are a carbon fiber / ABS composite material for 3D printing and a preparation method thereof. The carbon fiber / ABS composite material for 3D printing, with good processing performance, low volume shrinkage, light weight and high strength, is prepared by the aid of the advantages of high strength, high modulus, light weight and the like of carbon fibers. The mass percentage of the carbon fibers in the carbon fiber / ABS composite is regulated, the carbon fibers are compounded with high-impact-resistant butadiene-styrene-acrylonitrile ternary copolymer powder and high-flow styrene-acrylonitrile binary copolymers, the thermal property and processability of the carbon fiber / ABS composite material are regulated, and accordingly, the carbon fiber / ABS composite material is suitable for the3D printing technology. By the carbon fiber / ABS composite material for 3D printing, a group of wrenches, different in thickness, length, aperture and shape, are designed and printed through adjustmentof the printing temperature, the printing layer thickness and the filling mode of a printer. The 3D-printed wrenches made from the carbon fiber / ABS composite material are lightweight and are 1 / 6 of an ordinary iron wrench; the preparation method is simple, efficient, flexible and controllable; the wrenches have high safety performance and are especially provided for operators working aloft, thereby having positive application significance.

Description

technical field [0001] The invention belongs to the field of new chemical materials or polymer materials, and in particular relates to a carbon fiber / ABS composite material for 3D printing and a preparation method thereof. Background technique [0002] Due to its advantages of high strength, high modulus, and light weight, carbon fiber materials have gradually expanded from high-precision aerospace, wind power, and military industries to civilian, sports, entertainment, and other aspects of life. Combining carbon fiber with high fluidity ABS resin can obtain a carbon fiber composite material with good processability, low volume shrinkage, light weight and high strength. By adjusting the ratio of carbon fiber to ABS resin, adding lubricant, and optimizing carbon fiber sizing agent, a high-performance composite material suitable for 3D printing performance can be obtained. [0003] 3D printing technology is a rapid prototyping technology developed and promoted in the 1980s. I...

Claims

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Application Information

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IPC IPC(8): C08L25/12C08L55/02C08K13/06C08K9/04C08K7/06C08K5/098C08K5/372C08K5/524B33Y70/00
CPCB33Y70/00C08L25/12C08L55/02C08K13/06C08K9/04C08K7/06C08K5/098C08K5/372C08K5/524
Inventor 马晓坤赵金德陆书来
Owner JILIN INST OF CHEM TECH
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