Low-Temperature 3D Printing Filament Composition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional 3D printing materials like ABS and PLA require high printing temperatures, making 3D printers expensive to operate and potentially hazardous for novice users, especially children, due to high power consumption and temperature requirements.
Innovation Solution
A biocompatible 3D printing filament composition based on polycaprolactone (PCL) mixed with a low melting point polymer such as ethylene-vinyl acetate (EVA) or polyethylene glycol (PEG), along with antioxidants and plasticizers, allowing for printing at very low temperatures without a heated print bed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional thermoplastic polymers (ABS, PLA) are used for 3D printing, then the mechanical strength and heat resistance of the printed product are improved, but the operating temperature and power consumption of the printer increase
Solution Approach 1:
The patent changes the fundamental parameter of printing temperature by introducing a novel polymer composition with low melting point (below 100°C), replacing conventional high-melting-point thermoplastics. This allows the extrusion process to occur at temperatures below 100°C while maintaining adequate mechanical properties through the specific polymer blend formulation.
Solution Approach 2:
The patent uses a composite material system consisting of multiple polymer components including low-melting-point polymers (wax, polyethylene, polypropylene), biodegradable polymers (PLA, PCL, PHA), and thermoplastic elastomers. This composite approach enables the material to exhibit both low processing temperature and sufficient mechanical strength simultaneously.
2Duration of action of stationary object
If conventional thermoplastic polymers (ABS, PLA) are used for 3D printing, then the durability of printed products is improved, but the power consumption of the printer increases
Solution Approach 1:
The patent fundamentally changes the temperature parameter of the printing process to below 100°C, which directly reduces the power consumption of the heating elements while maintaining product durability through the engineered polymer composition that cures or bonds at these lower temperatures.
Solution Approach 2:
The patent applies local quality by creating a material composition with specific local properties - the polymer blend is formulated to have low melting point characteristics in the extrusion zone while maintaining overall structural integrity and durability in the final printed product through the synergistic combination of polymer components.
3Reliability
If high printing temperatures are used, then the quality of layer bonding is improved, but the safety hazard to users increases
Solution Approach 1:
The patent changes the operating temperature parameter to below 100°C, which eliminates the burn hazard associated with conventional high-temperature 3D printing while maintaining reliable layer bonding through the specific low-temperature polymer composition that achieves adequate adhesion at these reduced temperatures.
4Stability of the object's composition
If a heated print bed is used to prevent warping, then the dimensional stability of printed products is improved, but the complexity and cost of the printer system increases
Solution Approach 1:
The patent changes the material properties of the filament to have low melting point and high flexibility characteristics, which inherently reduce warping tendency during printing. This eliminates the need for a heated print bed, simplifying the printer system while maintaining dimensional stability through the engineered polymer formulation rather than thermal management hardware.
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
Enables safe and cost-effective 3D printing at temperatures below 100°C, reducing power consumption and eliminating the need for a heated print bed, while maintaining the mechanical properties of the filament.
Implementation Method 1
a 3D printing filament composition based on polycaprolactone (PCL) mixed with a low melting point polymer such as ethylene-vinyl acetate (EVA) or polyethylene glycol (PEG), allowing for printing at very low temperatures without a heated print bed
Data Source
AI summary
A low printing temperature thermoplastic filament composition for fused filament fabrication 3D printing is described. The filament includes polycaprolactone in an amount from 70 to 90 wt %, at least one thermoplastic polymer having a melting temperature between approximately 60° C. and approximately 90° C. in an amount from approximately 10 to 30 wt %, at least one antioxidant, and at least one plasticizing agent. This 3D printing filament can be printed out at temperatures below 100° C. and no heated print bed is needed, which saves energy and minimizes the complexity of 3D printer. Besides the low printing temperature, this 3D printing material is bio-friendly which makes it safe for household use.