PBS (poly butylenes succinate)/halloysite nanotubes composite wire for 3D printing and preparation method of PBS/halloysite nanotubes composite wire

Abstract

The invention discloses a preparation method of a PBS (poly butylenes succinate)/halloysite nanotubes composite wire for 3D printing. The technical scheme is that the halloysite nanotubes composite wire is prepared from the following raw materials by weight percent: 70-95 percent of PBS, 0.1-20 percent of halloysite nanotubes, 0.1-10 percent of a coupling agent, 0.1-2 percent of a nucleating agent, 0.1-1 percent of a chain extendor, 0.1-1 percent of a cross-linking agent, 0.2-1 percent of an anti-oxidant and 0.2-1.2 percent of a lubricant. The preparation method comprises the following steps: (1) drying, (2) material weighing, (3) high-speed kneading, (4) melt extrusion, (5) cooling and drawing, and (6) winding and bundling. According to the preparation method, the two completely biodegradable materials, PBS and the halloysite nanotubes, are adopted to prepare a polymer material suitable for 3D printing, and compared with a traditional polylactic acid (PLA) wire, the PBS/halloysite nanotubes composite wire is relatively low in printing temperature and relatively good in tensile strength and flexibility.

Description

technical field [0001] The invention belongs to a PBS / halloysite nanotube composite wire used for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, that is, additive manufacturing technology, together with robotics and artificial intelligence technology, is known as the key technology to promote the third industrial revolution. 3D printing technology is a rapid additive manufacturing technology that generates three-dimensional entities by adding materials layer by layer. Compared with traditional subtractive manufacturing technology, it has the characteristics of low loss, intelligent, precise and efficient product manufacturing. Especially in the field of high-end manufacturing involving complex shapes, 3D printing technology has shown great advantages. [0003] According to the principle of printing technology and the different materials used, 3D printing technology can be divided into laser cladding forming technology (LC...

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Problems solved by technology

[0007] Cao Xianwu et al. (Plastics, Volume 42, No. 2, 2013) studied the preparation and performance of PBS/Hallosite nanotube composites, but this article did not perform coupling treatment on the surface of Halloysite nanotubes, so adding 10 pa