3D Printing Ductility Agent Pore-Generating Compound
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Solution Overview
Problem
Existing 3D digital printing technologies face limitations in producing functional parts with desired properties such as mechanical strength and visual appearance due to the restricted range of materials used.
Innovation Solution
The use of multi-fluid kits and three-dimensional printing kits that include a ductility agent, comprising a fusing agent and a ductility agent with a pore-generating compound and a plasticizer, to enhance the ductility of 3D printed materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional 3D printing materials are used, then the printing process is simple, but the mechanical strength and ductility of the printed parts are insufficient
Solution Approach 1:
The patent uses composite materials by combining pore-generating compounds (such as starch, cellulose, or synthetic polymers) with plasticizers (such as glycerol, sorbitol, or polyethylene glycol) to create a ductility agent. This composite formulation allows the printed parts to achieve enhanced mechanical strength and ductility while maintaining a relatively simple printing process using existing 3D printing equipment.
Solution Approach 2:
The patent applies parameter changes by modifying the material properties through the ductility agent. The pore-generating compound creates a porous structure that increases surface area and interlocking, while the plasticizer modifies the polymer chain mobility and intermolecular forces. These parameter changes in material structure and composition enable improved mechanical strength and ductility without requiring changes to the printing device itself.
2Adaptability or versatility
If conventional printing materials are used, then the process is straightforward, but the ductility and flexibility of printed parts are limited
Solution Approach 1:
The patent employs porous materials by incorporating pore-generating compounds that decompose during or after printing to create controlled porosity in the printed parts. The pores increase the surface area and create interlocking structures that enhance ductility and flexibility. Common pore-generating compounds include starch, cellulose, or synthetic polymers that decompose at printing temperatures to leave behind a porous network structure.
Solution Approach 2:
The patent uses an intermediary approach by introducing a ductility agent that acts as a mediator between the base printing material and the desired mechanical properties. The ductility agent, consisting of pore-generating compounds and plasticizers, is mixed with or applied to the printing material to modify its properties. This intermediary formulation allows conventional 3D printers to produce parts with enhanced ductility without requiring modifications to the printing process itself.
3Reliability
If standard printing materials are used, then equipment requirements are minimal, but the functional properties of printed parts are insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the material composition with specific ratios of pore-generating compounds and plasticizers. The plasticizer content is typically controlled at 5-50 wt% of the total ductility agent formulation to optimize ductility without compromising structural integrity. The pore-generating compound concentration is adjusted to create the desired porosity level, typically 10-50% volume fraction, which enhances functional properties while maintaining manageable material quantities.
Solution Approach 2:
The patent uses composite materials by formulating a ductility agent that combines pore-generating compounds with plasticizers in specific ratios. This composite formulation is then integrated with the base printing material (such as nylon, polyester, or photopolymer resins) to create a multi-component system that delivers enhanced functional properties. The composite approach allows standard equipment to produce reliable functional parts with improved mechanical performance.
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 combination of the pore-generating compound and the plasticizer in the ductility agent significantly increases the ductility of 3D printed objects, providing a synergistic effect that exceeds the ductility achieved by either component alone.
Implementation Method 1
a water-soluble pore-generating compound that chemically reacts at an elevated temperature to generate a gas
Implementation Method 2
a plasticizer having: a formula (I): wherein n is an integer ranging from 3 to 8; or a formula (II)
Implementation Method 3
The electromagnetic radiation absorber absorbs radiation energy and converts the radiation energy to heat
Implementation Method 4
selectively fuse the polymer particles in contact with the radiation absorber to form a fused polymer matrix
Data Source
AI summary
The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of three-dimensional printing. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a ductility agent. The fusing agent can include water and electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ductility agent can include water, a water-soluble pore-generating compound that chemically reacts at an elevated temperature to generate a gas, and a plasticizer. The plasticizer can have formula (I) wherein n is an integer ranging from 3 to 8; or formula (II) wherein m is an integer ranging from 3 to 8.