3D Printing Fluids for Stable High-Density Nanoparticle Dispersion

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Solution Overview

Problem

Existing 3D printing technologies face limitations in using high density nanoparticles due to agglomeration and settling issues, which affect the dispersion and incorporation of these nanoparticles, thereby restricting the ability to impart desired properties such as mechanical strength, visual appearance, and functional capabilities to 3D printed articles.

Innovation Solution

The use of multi-fluid kits and three-dimensional printing kits that include a nanoparticle-containing agent with terpineol or ethyl cellulose suspension compounds to suspend high density nanoparticles, allowing for their effective dispersion and incorporation into 3D printed articles, thereby imparting properties like color, conductivity, and magnetic properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If high density nanoparticles are used in 3D printing, then mechanical strength and functional properties are improved, but agglomeration and settling issues occur that worsen dispersion and incorporation

Engineering Contradiction:

Improvemechanical strengthVSAvoiddispersion stability

Core Design Contradiction:

StrengthVSStability of the object's composition

Solution Approach 1:

The patent uses a nanoparticle suspension compound as an intermediary substance to mediate between the high density nanoparticles and the liquid vehicle. This compound prevents agglomeration and settling of nanoparticles while maintaining their dispersion in the printing material, thus resolving the contradiction between achieving mechanical strength enhancement and maintaining compositional stability during the printing process.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the physical and chemical parameters of the printing material by incorporating nanoparticle suspension compounds that change the rheological properties and surface characteristics of the liquid vehicle. These parameter changes enable stable suspension of high density nanoparticles, preventing settling while maintaining the desired mechanical properties in the final printed article.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If high density nanoparticles are incorporated into 3D printed articles, then functional properties such as conductivity and magnetic properties are enhanced, but costly functionalization processes are required

Engineering Contradiction:

Improvefunctional capabilitiesVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent changes the formulation parameters of the printing material by incorporating nanoparticle suspension compounds that enable direct use of high density nanoparticles without requiring additional functionalization steps. This approach maintains functional capabilities while simplifying the manufacturing process and reducing costs associated with complex surface modification procedures.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If conventional 3D printing materials are used, then printing process is simple, but the range of materials and capabilities is limited

Engineering Contradiction:

Improveprinting capabilityVSAvoidrange of materials

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent creates composite printing materials by combining high density nanoparticles with liquid vehicles and nanoparticle suspension compounds. This composite approach expands the range of available materials and functional capabilities while maintaining compatibility with existing 3D printing processes, thus resolving the contradiction between printing simplicity and material versatility.

Inventive Principle:

Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The described methods enable the stable jetting and incorporation of high density nanoparticles into 3D printed articles, enhancing their mechanical and functional properties without the need for costly functionalization processes, thus expanding the range of materials and capabilities in 3D printing.

Implementation Method 1

The nanoparticle-containing agent can include a liquid vehicle, high density nanoparticles, and a nanoparticle suspension compound selected from the group consisting of terpineol, ethyl cellulose, and a combination thereof

Methodology Applied

Scientific EffectSuspension: Suspension

Implementation Method 2

The fusing agent can include water and a radiation absorber, wherein the radiation absorber absorbs radiation energy and converts the radiation energy to heat

Methodology Applied

Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Implementation Method 3

Based on a three-dimensional object model, selectively applying a nanoparticle-containing agent onto the individual build material layers

Methodology Applied

Scientific EffectDeposition (physical): Deposition (physical)

Data Source

PatentUS20250340012A1Three-dimensional printing with high density nanoparticles

Publication Date: 2025.11.06 PERIDOT PRINT LLC

AI summary

A multi-fluid kit for three-dimensional printing can include a fusing agent and a nanoparticle-containing agent. The fusing agent can include water and a radiation absorber, where the radiation absorber absorbs radiation energy and converts the radiation energy to heat. The nanoparticle-containing agent can include a liquid vehicle, high density nanoparticles, and a nanoparticle suspension compound selected from the group consisting of terpineol, ethyl cellulose, and a combination thereof.