18 Questions
What is the primary difference between Leuco Dyes and Liquid Crystals in terms of precision?
Leuco Dyes are less precise than Liquid Crystals
What is the primary use of Cold-activated thermochromic ink?
To create a colour change when cooled
What is the characteristic of Leuco Dyes that allows them to change colour back and forth?
They are reversible
What is the main application of High-temperature thermochromic ink?
To alert users to potential safety hazards
What is the primary use of Touch-activated thermochromic ink?
To reveal an image or another colour printed beneath
In what forms are Leuco Dyes products available?
In a wide variety of colours, temperatures and forms
What type of inks are temperature-sensitive compounds that temporarily change colour with exposure to heat?
Thermochromic inks
What is the temperature range of the SFXC LC product?
24°C to 29°C
What is the typical application of Liquid Crystals?
Forehead thermometers and medical devices
What is the primary difference between Liquid Crystals and Leuco Dyes?
Precision of temperature response
What is the construction of SFXC LC sheets?
A thin layer of liquid crystal on a black background with a polyester laminate
What type of inks are used on T-shirts as shown in Figure 9?
Photochromic inks
What type of change can some smart materials exhibit in response to external stimuli?
Change in one or more specific properties
What is a characteristic that distinguishes smart materials from modern materials?
Ability to change in response to external stimuli
What is a key feature of smart materials that sets them apart from other materials?
Change is inherent to the material
What type of stimulus can cause some smart materials to change?
Change in temperature, UV light level, or strain rate
What is a common characteristic of all smart materials?
They are all reactive
What category of materials do smart materials belong to?
Metals, polymers, ceramics, and composites
Test your understanding of thermochromic liquid crystals and leuco dyes, including their properties and applications. Learn about the differences between these two types of smart materials and how they are used in various industries.
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