What are liquid crystals write its classification and applications?
Liquid crystals are classified in many ways, molecules within the mesophases (mesogens) can be calamitic (rod-like), discotic (disc-like), amphiphilic, nonamphiphilic, metal containing, non-metal containing and low molecular weight or polymeric. Liquid crystals either show thermotropic behaviour or lyotropic behaviour.
What are the properties of LCP?
8.7. 2 LCPs Properties
| Property | Unit | LCP 1 |
|---|---|---|
| HDT at 1.8 MPa or 264 psi | °C | 105–187 |
| Melting point | °C | 212–280 |
| Tensile strength | MPa | 140–182 |
| Tensile elongation at break | % | 1.7–3.4 |
Which material is used for manufacturing LCP?
LCPs – liquid crystal polymers – are thermoplastic resins which exhibit unique properties. These materials have many unique and desirable traits including exceptional mechanical strength, heat tolerance for autoclaving, and chemical inertness.
Which is not an application of conducting polymers?
Which of the following is not an application of conducting polymers? Explanation: Rechargeable batteries, analytical sensors, electronics are some of the applications of conducting polymers. 11. Emeraldine base form of polyaniline is used as a resist for lithography.
What are the applications of liquid crystals?
Liquid crystals are everywhere. They are used in all kinds of display devices including computer monitors and laptop screens, TVs, clocks, visors, and navigation systems. Each pixel in a monitor is an assembly of liquid crystals controlled by its own electromagnetic field.
What are the applications of liquid crystal in pharmaceutical industry?
Liquid crystal formulations have been used in cosmetics and pharmaceutical controlled release dosage forms. These formulations get enhanced penetration of biologically active materials like vitamin A) through the skin.
What is crystalline polymer used for?
1 INTRODUCTION. Crystalline polymers constitute a class of important engineering plastic materials in industrial applications and human daily lives. Some of the largest quantities produced each year in polymer industries are polyethylene and copolymers, polypropylene, polyesters and nylons.
Is LCP amorphous?
LCPs are highly crystalline, inherently flame retardant, thermotropic (melt-orienting) thermoplastics. They are similar to semicrystalline polymers, but have distinctive attributes.
What are the properties and application of liquid crystal polymers?
LCP offers benefits for applications requiring high strength, vibration damping, low moisture absorption and low CTE. LCP is a high modulus thermoplastic matrix fiber for applications requiring high impermeability, excellent property retention over a borad temperature range and low moisture absoption.
What is liquid crystal polymer used for?
Liquid crystal polymer (LCP) exhibits a highly ordered structure in both the melt and solid states. LCP can replace such materials as ceramics, metals, composites and other plastics because of its outstanding strength at extreme temperatures and resistance to virtually all chemicals, weathering, radiation and burning.
What are the types of liquid crystal polymers (LCPS)?
T wo categories of liquid crystal polymers (LCPs) should be distinguished. On the one hand we have side-chain LCPs, where the mesogenic groups are attached to a polymer backbone, and on the other hand we have main-chain LCPs where the polymer chain itself contains the mesogenic groups. In the latter case we may
What kind of control systems do you have for liquid crystal?
TEMPERATURE CONTROL SYSTEMS Designed specifically for Liquid Crystal Serving the Liquid Crystal community research since 1984 HS1 MICROSCOPE HOT STAGE Large sample volume Low thermal gradients
What is the use of LCP in liquid crystal?
can be used as passive components in liquid crystal displays for improvement of the viewing angle and the contrast. Also, there are developments to use uniformly oriented LCP layers
What are the best optical systems for liquid crystal?
CONTROL SYSTEMS Designed specifically for Liquid Crystal Serving the Liquid Crystal community research since 1984 HS1 MICROSCOPE HOT STAGE Large sample volume Low thermal gradients Precision sample positioning Large area optical access RTC1 REMOTE TEMPERATURE CONTROLLER Combines the best features of our mK1