Preparation method of high-toughness and high-fluidity PS for 3D printing material

Abstract

The invention belongs to the field of high polymer materials for 3D printing, and discloses a preparation method of a high-toughness and high-fluidity PS for a 3D printing material; the high-toughnessand high-fluidity PS has the characteristics of high toughness, good fluidity, low cost, easiness in processing and the like, and is composed of the following components in parts by weight: 80 to 90parts of PS, 6 to 10 parts of a toughening agent, 4 to 8 parts of a compatilizer, 1 to 2 parts of a lubricating agent and 0.4 to 1 part of an antioxidant.

Description

technical field [0001] The invention relates to a preparation method of high-toughness and high-flow PS used in 3D printing materials, which belongs to PS / toughener composite material and a preparation method thereof. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, refers to the molding technology that uses physical and chemical methods to add materials layer by layer and accumulate molding. The difference from traditional molding manufacturing methods is that 3D printing technology uses rapid automatic molding systems and computer data. Models can be combined to produce prototypes with complex shapes without additional machining and mold manufacturing. In recent years, 3D printing technology has received more and more attention and has achieved rapid development. It is widely used in aerospace, jewelry, film and television, home appliances, archaeology, education and other fields. [0003] Fused deposition rapid protot...

AI Technical Summary

Problems solved by technology

[0003] Fused deposition rapid prototyping (FDM) is a process in 3D printing technology. The consumables used are generally thermoplastic polymer materials. Electric heating is used to heat the filament to a temperature higher than its melting temperature. Plane movement, coating the molten material on the worktable, and stacking it layer by layer to form a three-dimensional workpiece. PS itself has the advantages of good thermal melting, easy extrusion, stable printing process, high product strength and excellent formability. Widely used in daily necessities, engineering supplies, mechanical parts, etc., and has become the most widely used printing consumables in the FDM process, but when injection molding grade or extrusion grade PS is used in the 3D printing process, there is generally toughness in the extrusion process. Insufficient and poor fluidity problems, which lead to broken wires and poor extrusion during the FDM printing process, and poor surface accuracy, hindering the application of PS materials in the FDM field