Thermochromic PBS composite wire for 3D printing

Abstract

The invention discloses a thermochromic PBS composite wire for 3D printing. The thermochromic PBS composite wire is prepared from the following raw materials in parts by weight: 75 to 85 parts of PBS, 0 to 2 parts of PHA, 0 to 5 parts of a compatilizer, 0.1 to 0.5 part of a chain extender, 0.1 to 0.5 part of a crosslinking agent, 0.1 to 2 parts of a nucleating agent, 0.2 to 1 part of an antioxidant, 0.2 to 2 parts of a lubricating agent, 0.5 to 2 parts of multi-wall carbon nano tube / ZnO composite powder and 0.5 to 2 parts of multi-wall carbon nano tube / vanadium dioxide. According to the thermochromic PBS composite wire for 3D printing, a multi-wall carbon nano tube is treated in advance, and then vanadium dioxide is adsorbed to the multi-wall carbon nano tube to form composite powder; a scientific proportion can be obtained by tests for multiple times; the composite powder is combined with PBS and PHA to prepare the composite wire for a 3D printing machine; compared with the conventional wire, the composite wire has the advantages that the color of the composite wire can be changed after the composite wire is heated and is mellow and full; the color change uniformity is higher; furthermore, the composite wire needs lower printing temperature, is higher in tensile strength and flexibility, has low shrinkage rate, can solve the problem of after-printing warping, is applicable to various 3D molding technologies, and has a wide application prospect in the field of 3D printing.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a thermochromic PBS composite wire for 3D printing. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is actually an emerging technology in the field of rapid prototyping. A technique for constructing objects in a manner. The basic principle is additive manufacturing, the technique of adding material layer by layer to generate a three-dimensional solid. At present, 3D printing technology is mainly used in product prototyping, mold manufacturing, art creation, jewelry making and other fields, replacing these traditional fine processing techniques. In addition, 3D printing technology is gradually applied in fields such as medicine, bioengineering, architecture, clothing, aviation, etc., opening up a broad space for innovation. [0003] Polybutylene succinate (PBS), also known as polybutylene succinate or polybutylene succina...

AI Technical Summary

Problems solved by technology

At present, it can be applied to catering utensils, daily necessities, agricultural materials, biomedical polymer materials, food and drug packaging materials, etc., but there is a problem of heat shrinkage when pure PBS is directly applied to 3D printing, and its toughness and tensile strength are also low. to be further improved

At present, the products produced by the 3D plastic line consumables factory are only ordinary colored products, and there are few reports of composite materials for 3D printing that can be thermochromic.

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