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3D printing raw material based on PLA reclaimed material, 3D printing material and preparation method thereof

A technology of 3D printing and recycled materials, applied in the field of 3D printing, can solve the problems of difficult secondary utilization of PLA waste, achieve the effects of saving social and natural resources, simple and easy preparation methods, and protecting the environment

Pending Publication Date: 2021-05-07
ISUN3D TECH SHNZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present invention provides a 3D printing raw material based on PLA reclaimed materials, a 3D printing material and a preparation method of the 3D printing material, so as to solve the problem that PLA waste with different degradation degrees is difficult to recycle in the field of 3D printing. problem of use

Method used

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  • 3D printing raw material based on PLA reclaimed material, 3D printing material and preparation method thereof
  • 3D printing raw material based on PLA reclaimed material, 3D printing material and preparation method thereof
  • 3D printing raw material based on PLA reclaimed material, 3D printing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]Take 85 parts of pre-dried PLA recycled material, 0.5 part of plasticizer PCL, 0.5 part of crosslinking agent BPO, 5 parts of chain extender ADR, 3 parts of toughening agent PLA-TPU, lubricant stearic acid 1840 and polyethylene wax 0.25 parts each of 3316, 0.25 parts each of antioxidants 1010 and 168, 5 parts of talc powder SD-4000 treated with silane coupling agent, put into a high-speed mixer and mix for 15 minutes, after mixing evenly, melt and blend through a twin-screw extruder Extruded, water-cooled and pelletized, the working temperature is 175°C, and the working pressure is 4.2MPa. The obtained blended modified particles were dried in a vacuum oven at 65°C for 4 hours, and the moisture content was measured to be less than 0.2%, taken out, poured into the hopper of a single-screw extruder, and melted and extruded to form filaments with a diameter of 1.75mm , the working temperature is 210°C, the working pressure is 3.8MPa, the filament is wound up with a special 3...

Embodiment 2

[0051] Take 90 parts of pre-dried PLA recycled material, 1 part of plasticizer ATBC, 0.5 part of crosslinking agent DCP, 2 parts of chain extender HDI, 2.5 parts of toughening agent FM40, lubricant silicone powder KJ-B118 and polyethylene wax 0.25 parts of 3316, 0.25 parts of antioxidant 1010 and AS4500, 0.25 parts of calcium carbonate HX-8164 treated with silane coupling agent, put into high-speed mixer and mix for 15 minutes, after mixing evenly, melt and blend through twin-screw extruder Extruded, water-cooled and pelletized, the working temperature is about 180°C, and the working pressure is 3.25MPa. The obtained blended modified particles were dried in a vacuum oven at 65°C for 4 hours, and the moisture content was measured to be less than 0.2%, taken out, poured into the hopper of a single-screw extruder, and melted and extruded to form filaments with a diameter of 1.75mm , the working temperature is 210°C, the working pressure is 3.0MPa, the filament is wound up with a ...

Embodiment 3

[0054] Take 85 parts of pre-dried PLA recycled materials, 0.5 parts of plasticizer PPG, 0.2 parts of crosslinking agent BIPB, 4.5 parts of chain extender phosphite, 3 parts of toughening agent POE, lubricant silicone powder KJ-B118 and paraffin wax 0.5 parts of 56# each, 0.4 parts of each of antioxidant 168 and AS4500, 5 parts of TH106 wollastonite treated with silane coupling agent, put into a high-speed mixer and mix for 15 minutes. Mixed extrusion, water-cooled pelletizing, working temperature is 170°C, working pressure is 2.8MPa. The obtained blended modified particles were dried in a vacuum oven at 65°C for 4 hours, and the moisture content was measured to be less than 0.2%, taken out, poured into the hopper of a single-screw extruder, and melted and extruded to form filaments with a diameter of 1.75mm , the working temperature is 220°C, the working pressure is 2.5MP, the filament is wound up with a special 3D printing reel, and the FDM 3D printing test is carried out on ...

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Abstract

The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing raw material based on a PLA reclaimed material, a 3D printing material and a preparation method thereof. The 3D printing raw material based on the PLA reclaimed material comprises the following components in parts by weight: 60-100 parts of the PLA reclaimed material, 0.2-1 part of a plasticizer, 0.2-1 part of a cross-linking agent, 1-10 parts of a chain extender, 1-5 parts of a flexibilizer, 0.2-1 part of a lubricant, 0.2-1 part of an antioxidant and 5-20 parts of an inorganic filler. The problem that PLA waste materials with different degradation degrees are difficult to reutilize in the field of 3D printing is solved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a 3D printing raw material based on recycled PLA, a 3D printing material and a preparation method of the 3D printing material. Background technique [0002] PLA is a completely biodegradable green polymer material. Because of its excellent printing performance, it plays an increasingly important role in 3D printing consumables. With the continuous expansion of the 3D printing field, its market share is also increasing year by year. Increase, according to incomplete statistics, by 2020 its use in the 3D field will reach 2W tons. With the explosive growth of PLA consumption, the waste products generated during its application are also increasing exponentially, so how to recycle and reuse PLA waste products to save society and natural resources to the greatest extent will be a forward-looking sexual issues. [0003] CN107825702A discloses a 3D printer consumables A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04B33Y70/10
CPCC08L67/04B33Y70/10
Inventor 杨义浒吴泽陈锐刘浦胡泽波李伟胡浩孙宏胤钟启培
Owner ISUN3D TECH SHNZHEN CO LTD
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