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SEBS composite material used for 3D printing and preparation method thereof

A composite material and 3D printing technology, which is applied in the field of SEBS composite material and its preparation, to achieve the effects of compression deformation resistance mechanical properties, excellent mechanical properties, and low hardness

Inactive Publication Date: 2017-04-05
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the consumables used in 3D printing are basically hard consumables, and many SEBS composite materials are needed in industry and life, such as tire models, etc. Hard materials such as ABS and PLA cannot meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method that is applicable to the SEBS composite material of 3D printing, adopts the following steps:

[0029] (1) 27 parts (weight ratio, the same below) of polypropylene T30S, 30 parts of thermoplastic elastomer SEBS YH503, 10 parts of polystyrene Zhenjiang Chimei PG-33, 30 parts of #70 white oil, 2 parts of antioxidant Agent 1024, 1 part of phenylethyl bromide.

[0030] (2) Weigh each material according to the ratio in (1), and mix it in a high-speed kneader for 1-10 minutes to obtain a premix;

[0031] (3) Put the premix obtained in (2) into a twin-screw extruder for extrusion and drawing. The temperature of the twin-screw extruder is set as follows: 190-230°C, 190-230°C, 190-230°C, 190°C -230°C, 190-230°C, 190-230°C, 190-230°C, die head temperature 190-230°C, screw aspect ratio greater than 32, screw rotation speed 150-180r / min, feeding speed 10- 15r / min.

[0032] The obtained material has a Shore hardness (A) of 45, a tensile strength at break of...

Embodiment 2

[0034] The preparation method of the modified polylactic acid composite material applicable to 3D printing adopts the following steps:

[0035] (1) 20 parts (weight ratio, the same below) of polypropylene T30S, 20 parts of thermoplastic elastomer SEBS YH503, 20 parts of polystyrene Zhenjiang Chimei PG-33, 35 parts of #100 white oil, 3 parts of antioxidant agent DSTP, 2 parts of decabromodiphenyl ether.

[0036] (2) Weigh each material according to the ratio in (1), and mix it in a high-speed kneader for 1-10 minutes to obtain a premix;

[0037] (3) Put the premix obtained in (2) into a twin-screw extruder for extrusion and drawing. The temperature of the twin-screw extruder is set as follows: 190-230°C, 190-230°C, 190-230°C, 190°C -230°C, 190-230°C, 190-230°C, 190-230°C, die head temperature 190-230°C, screw aspect ratio greater than 32, screw rotation speed 150-180r / min, feeding speed 10- 15r / min.

[0038] The obtained material has a Shore hardness (A) of 85, a tensile str...

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Abstract

The invention relates to a SEBS composite material used for 3D printing and a preparation method thereof. The SEBS composite material comprises the following raw materials by mass percentage: 20-30 parts of polypropylene, 10-30 parts of a thermoplastic elastomer SEBS, 10-20 parts of polystyrene, 10-40 parts of mineral oil, 0-3 parts of an anti-oxidant, and 0-3 parts of a fire retardant. The above raw materials are mixed through a high-speed kneader, a double screw extruder is used for extrusion and wire drawing. Compared with the prior, the material has the characteristic of low hardness, the weatherability and hear resistance of the material are improved, and the material is excellent on fluency and bonding property between material layers.

Description

technical field [0001] The invention belongs to the field of polymer materials and is suitable for 3D printing materials, in particular to a SEBS composite material suitable for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, a type of rapid prototyping technology, is a technology based on digital model files, using bondable materials such as metal or plastic, to construct objects by slicing and printing layer by layer. It has been widely developed in the fields of mold design, industrial machinery parts manufacturing, automobiles, aviation, medicine and medicine. 3D printing technology mainly includes stereolithography, laser sintering, fusion lamination, etc. Among them, fusion lamination printing (FDM) is an extremely important one, and its application range is also extremely wide. [0003] The main principle of Fused Deposition Printing Technology (FDM) is to heat the thermoplastic material at a temperature slightly hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L25/06C08L91/00C08K5/03C08K5/06
Inventor 李健成李文岩林航
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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