NiTi Wire Composite Anti-Icing Material
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Solution Overview
Problem
Existing anti-icing methods consume significant energy and can cause damage to equipment, as they either require high heat or involve materials with short service lives, making them inefficient and inconvenient for use.
Innovation Solution
An intelligent anti-icing material comprising a hydrophobic resin and a nickel-titanium alloy wire embedded within, which undergoes thermoelastic martensitic transformation to reduce ice adhesion without the need for additional heat sources, utilizing hydroxylated nickel-titanium alloy wires and a binder for bonding with the resin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal deicing or heating methods are used to prevent icing, then the surface temperature can be maintained above the freezing point, but large amounts of energy are consumed
Solution Approach 1:
The nickel-titanium alloy wire serves itself by utilizing the phase transformation phenomenon to generate expansion force automatically when temperature drops, without requiring external energy input. The material's inherent properties enable it to prevent ice adhesion through self-driven mechanical expansion
Solution Approach 2:
The nickel-titanium alloy wire exploits the martensite-austenite phase transformation to achieve volume expansion upon cooling. This phase transition occurs at specific temperatures and generates the mechanical force needed to prevent ice adhesion, converting thermal energy directly into mechanical work
2Reliability
If mechanical deicing means such as beating is used, then ice can be removed from the surface, but damages are likely to occur to the equipment and the surface
Solution Approach 1:
The patent replaces aggressive mechanical deicing methods with a passive mechanical expansion mechanism. The nickel-titanium alloy wire expands through phase transformation to create separation between the ice and surface, achieving ice removal without direct mechanical contact or impact forces that could damage the equipment
3Reliability
If hydrophobic coating materials with rubber as matrix resin are used, then anti-icing effect is achieved, but the rubber is easy to age during low-temperature service and has short service life
Solution Approach 1:
The patent creates a composite material system combining hydrophobic resin with nickel-titanium alloy wire. This composite approach leverages the hydrophobic properties to prevent ice adhesion while the metal alloy provides structural stability and phase transformation capability, avoiding the aging issues of rubber-based materials
Solution Approach 2:
The invention replaces short-lived rubber-based materials with a durable metal alloy system that does not age. The nickel-titanium alloy maintains its functional properties over extended periods, eliminating the need for frequent replacement
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 material effectively reduces ice adhesion and accelerates ice shedding without energy consumption, demonstrating a 18.2-24.2% reduction in ice layer adhesion at -20°C compared to self-reinforced PP materials, offering a convenient, energy-efficient, and durable anti-icing solution.
Implementation Method 1
the nickel-titanium alloy wire featured by thermoelastic martensitic transformation undergoes phase transformation and expands
Implementation Method 2
the nickel-titanium alloy wire has a martensite transformation point temperature of −30 to −10° C.
Implementation Method 3
when the surrounding temperature decreases, the hydrophobic resin comprised in the intelligent anti-icing material according to the present disclosure shrinks
Implementation Method 4
coating the hydroxylated nickel-titanium alloy wire obtained in step (1) with a binder, to obtain a nickel-titanium alloy wire to be bonded
Data Source
AI summary
An intelligent anti-icing material and a preparation method and use thereof are disclosed. The intelligent anti-icing material includes a hydrophobic resin and a nickel-titanium alloy wire embedded in the hydrophobic resin. When the surrounding temperature decreases, the hydrophobic resin in the intelligent anti-icing material shrinks, and the nickel-titanium alloy wire featured by thermoelastic martensitic transformation undergoes phase transformation and expands, which changes the direction of the expansion force inside the ice layer, and thus tiny cracks occur at the interface between the ice layer and the surface of the material, thereby reducing the adhesion of the ice layer to the surface of the material, accelerating the spontaneous shedding of the ice layer, without heating, and achieving an excellent anti-icing effect.