Novel nylon material and preparation method thereof, and application of novel nylon material in 3D printing

Abstract

The invention provides a novel nylon material and a preparation method thereof, and application of the novel nylon material in 3D printing. The preparation method of the nylon material comprises the following steps: 1) polymerizing an olefine acid ester monomer and a functionalized olefin monomer under an anaerobic condition to prepare a polymer a; 2) reacting a polyamide hard segment with amino or carboxyl groups in the polymer a to prepare a polymer b; 3) dissolving the polymer b, and adding a base catalyst to hydrolyze an ester group of the polymer b so as to generate carboxyl groups, thereby preparing a polymer c; and 4) adding an esterification catalyst to enable carboxyl groups generated by hydrolysis of the polymer c to react with hydroxyl groups in a polyether polyol soft segment,thereby obtaining the nylon material. According to a nylon molecule prepared by the method disclosed by the invention, a polyolefine acid ester chain segment is used as a main chain, and the polyamidehard segment and the polyether polyol soft segment are used as side chains, so the problem that a product is easy to warp when a nylon material is used for 3D printing can be solved.

Description

technical field

[0001] The invention relates to a nylon material, in particular to a novel nylon material, a preparation method and its application in 3D printing. Background technique

[0002] 3D printing technology, also known as rapid prototyping technology, plays a significant role in product innovation because it can realize rapid printing of single-piece or small-batch products. According to different molding methods, 3D printing technology can be divided into three molding methods: stereolithography (SLA), fused deposition modeling (FDM), and selective laser sintering (SLS). Nylon, also known as polyamide, is an indispensable material in the injection molding industry and one of the most important 3D printing materials.

[0003] Nylon 12 (PA12) is a commonly used nylon material. Due to its excellent impact resistance and fatigue resistance, it occupies a large market in the field of FDM technology as a crystalline plastic. However, materials such as nylon 12 have lo...

Images