用于增材制造的糊料组合物

By using a paste composition with high concentration of material of interest particles and shear-thinned binder, the problems of flowability and uniformity of paste compositions with high solids content in additive manufacturing were solved, and high-density, high-mechanical-strength three-dimensional molded products were realized.

CN114555265BActive Publication Date: 2026-07-17VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV (VITO)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV (VITO)
Filing Date
2020-07-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing additive manufacturing technologies, paste compositions with high solid content are difficult to maintain uniformity and flowability, leading to nozzle clogging and poor print quality. Furthermore, excessive organic material content affects mechanical properties.

Method used

A paste composition containing high concentrations of material of interest particles (70-99.8%), shear-thinning binders, and additives is used to control viscosity through shear-thinning properties, prevent phase separation, and ensure fiber uniformity and high mechanical strength.

Benefits of technology

This study achieves stability and uniformity of high-solids paste compositions during nozzle extrusion, reduces the risk of nozzle clogging, and improves the density and mechanical strength of three-dimensional molded products.

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Abstract

一种用于制造感兴趣材料三维成型制品的增材制造糊料组合物,所述糊料组合物包含:‑相对于组合物的重量,70‑99.8重量%的感兴趣材料颗粒,所述感兴趣材料是选自下组的一种或多种化合物:金属和金属合金及其混合物,‑至少一种粘合剂组分,‑至少一种添加剂组分,所述添加剂组分是润滑剂,‑一种或多种溶剂,所述溶剂彼此可混溶,其中,相对于糊料组合物的重量,至少一种添加剂组分和至少一种粘合剂的浓度之和为0.06重量%至10.0重量%,并且添加剂组分和粘合剂组分中的至少一种或它们的混合物是剪切稀化的。
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