Composition used for 3D printing, 3D printing material containing composition, preparation method and applications of 3D printing material as well as 3D printing equipment

A 3D printing and composition technology, applied in the field of 3D printing materials, can solve the problems of not developing functional directions, and achieve the effects of low cost, high safety and fast forming speed

Active Publication Date: 2016-06-29
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent only considers how to improve the mechanical

Method used

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  • Composition used for 3D printing, 3D printing material containing composition, preparation method and applications of 3D printing material as well as 3D printing equipment
  • Composition used for 3D printing, 3D printing material containing composition, preparation method and applications of 3D printing material as well as 3D printing equipment
  • Composition used for 3D printing, 3D printing material containing composition, preparation method and applications of 3D printing material as well as 3D printing equipment

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preparation example Construction

[0073] The present invention also provides a method for preparing materials for 3D printing, comprising the following steps:

[0074] 1) mixing the components in the composition; preferably fully mixing by a high-speed mixer for 5 to 30 minutes;

[0075] 2) The mixture obtained in step 1) is melted and plasticized by a twin-screw extruder, and pelletized by a pelletizer; preferably, the melt-plasticized temperature of the twin-screw extruder is 60-150°C.

[0076] Further preferably, the preparation method also includes the following steps:

[0077] 3) drawing the pellets obtained in step 2) to obtain filaments; preferably drawing through a screw extruder; more preferably drawing through a single-screw extruder. The preparation method has simple process, low cost and high safety. The obtained filaments have a diameter of 0.5-5 mm, more preferably 1.5-3.5 mm, for example 1.75 mm or 3 mm.

[0078] According to the present invention, before mixing the thermoplastic resin in the...

Embodiment 1

[0091] 1. According to the following proportions by weight:

[0092] Perstorp Capa TM 6400 (the number average molecular weight is 37000) 40 parts;

[0093] SM 2 Fe 17 N 3 46 parts of powder;

[0094] Toughener DowPOE84115 parts;

[0095] Tackifier C 9 Petroleum resin (provided by Puyang Hengfeng Petrochemical Co., Ltd.) 8 parts;

[0096] German BASF antioxidant 1680.5 parts;

[0097] Nanjing United Silicon Chemical KH5700.5 copies.

[0098] 2. Preparation method

[0099] 1) The raw materials are weighed in proportion;

[0100] 2) Ball mill the PCL pellets in a liquid nitrogen environment for 1 hour to obtain a powder with a particle size of about 200 μm; at the same time, disperse the silane coupling agent KH570 in the Sm 2 Fe 17 N 3 in powder;

[0101] 3) Put the above components into a high-speed mixer and stir for 10 minutes at high speed, and mix thoroughly;

[0102] 4) Put the mixture obtained after fully mixing in step 3) into a HAAKE twin-screw extruder ...

Embodiment 2

[0109] 1. According to the following proportions by weight:

[0110] Perstorp Capa TM 6500 (the number average molecular weight is 50000) 28 parts;

[0111] Nd 2 Fe 14 62 parts of B powder;

[0112] Toughening agent DupontEVA2603 parts;

[0113] C 5 Petroleum resin (provided by Puyang Hengfeng Petrochemical Co., Ltd.) 6.2 parts;

[0114] BASF antioxidant 1680.5 parts;

[0115] Nanjing United Silicon Chemical KH5600.3 parts

[0116] 2. Preparation method

[0117] 1) Weigh the raw materials in proportion;

[0118] 2) Ball mill the PCL pellets in a liquid nitrogen environment for 1 hour to obtain a powder with a particle size of about 200 μm; at the same time, disperse the silane coupling agent KH560 in the Nd 2 Fe 14 In B powder;

[0119] 3) Put the above components into a high-speed mixer and stir at high speed for 10 minutes, and mix thoroughly;

[0120] 4) Put the mixture obtained after fully mixing in step 3) into a HAAKE twin-screw extruder for plasticizing and...

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Abstract

The invention discloses composition used for 3D printing, a 3D printing material containing the composition, a preparation method and applications of the 3D printing material as well as 3D printing equipment. The rare earth element doped composition for 3D printing is prepared from components as follows: 20-60 parts by weight of thermoplastic resin and 40-80 parts by weight of alloy powder containing rare earth elements. The composition for 3D printing is doped with the rare earth magnetic elements, so that the 3D printing material prepared from the composition can form a permanent magnet after being magnetized and has multiple potential applications. The preparation method is simple, low in cost and high in safety. The 3D printing material prepared with the method can be filaments which can be directly used for fused deposition modeling 3D printing, and the modeling speed is high. A part in a preset shape can be formed through 3D printing and is magnetized after printing, the permanent magnet in a complicated shape is obtained finally, application requirements in certain special occasions are met, and the market blank is filled.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, and in particular, relates to a composition for 3D printing, a 3D printing material containing the same, a preparation method, application and 3D printing equipment. Background technique [0002] Rapid Prototype (RP) technology is an advanced manufacturing technology developed rapidly in the 1990s, and it is a key technology serving the development of new products in the manufacturing industry. It plays a positive role in promoting product innovation of enterprises, shortening the cycle of new product development, and improving product competitiveness. Since the technology came out, it has gradually been widely used in the manufacturing industry of various countries in the world, and thus gave birth to a new technical field. As an emerging rapid prototyping technology, 3D printing technology is mainly used in the fields of product prototype, mold manufacturing, artistic creation, j...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L23/08C08L57/02C08K9/06C08K3/28C08K3/38C08K3/08D01F8/14D01F1/10D01F6/92B29C67/00B33Y30/00B33Y70/00
CPCB33Y30/00B33Y70/00C08K3/08C08K2201/01C08L67/04C08L2203/12C08L2205/03D01F1/10D01F6/92D01F8/14C08L23/0815C08L57/02C08K9/06C08K3/28C08L23/0853C08K3/38
Inventor 吴立新王剑磊
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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