Low-cost black FDM printing filament prepared by utilizing recycled tobacco film masterbatch as well as preparation method and application of printing filament

Abstract

The invention discloses a low-cost black FDM printing filament prepared by utilizing recycled tobacco film masterbatch as well as a preparation method and application of the printing filament. The black FDM printing filament is prepared from the following raw materials, in parts by weight: 5-40 parts of the recycled tobacco film masterbatch, 60-95 parts of polylactic acid, 0.2-3 parts of a compatibilizer, 0.5-1 part of a toughening agent, 0.5-1.5 parts of an auxiliary agent, and 0.5-1 part of white oil. The preparation method comprises the following steps: weighing each raw material accordingto one corresponding formula ratio, adding the weighed materials into a high-speed mixing machine, and performing stirring to obtain a material a; and performing extrusion by a twin-screw extruder, performing cutting to obtain a material b, and performing extrusion through a die opening of a twin-screw extruder to obtain the target product. According to the method provided by the invention, the recycled tobacco film masterbatch low-density polyethylene (PE) in a Yunnan region and polylactic acid (PLA) are mixed to prepare the polymer filament suitable for black 3D printing, the method can finda cheap substitute for 3D printing PLA filament coloring black masterbatch, the printing filament provided by the invention has a good, uniform and non-color-cast coloring effect, and the method broadens an application range of the recycled tobacco film masterbatch, realizes green recycling of PE-based polymer materials, and provides the novel 3D printing filament.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a low-cost black FDM printing wire material prepared by using recycled cigarette film masterbatch, a preparation method and application thereof. Background technique [0002] The tobacco planting area in Yunnan Province ranks first in the country. The tobacco industry is an important economic pillar industry in Yunnan Province and has an important impact on economic growth. In order to prevent weeds and increase the ground temperature, tobacco farmers need a large amount of mulching film during the tobacco cultivation process. The average life cycle of tobacco film is 1 to 3 years, so there is a large amount of waste tobacco film in Yunnan Province every year. At present, there are many waste cigarette film recycling enterprises in Yunnan that can produce and produce more than 30,000 tons of recycled cigarette film materials each year. Compared with ordinary househo...

AI Technical Summary

Problems solved by technology

However, PLA-type 3D printing materials are still relatively expensive, and the cost of printing is high, making it difficult to popularize

In addition, the PLA masterbatch is white. In the process of use, different color masterbatches, dispersants, compatibilizers and other additives need to be added for coloring according to different market demands. In this way, not only additional processing links are required, but also greatly increased. Generate time and cost

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