Liquid-crystal polymer
Class of extremely unreactive, inert and fire-resistant polymers / From Wikipedia, the free encyclopedia
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Liquid crystal polymers (LCPs) are polymers with the property of liquid crystal, usually containing aromatic rings as mesogens. Despite uncrosslinked LCPs, polymeric materials like liquid crystal elastomers (LCEs)[1] and liquid crystal networks (LCNs) can exhibit liquid crystallinity as well. They are both crosslinked LCPs but have different cross link density.[2] They are widely used in the digital display market.[3] In addition, LCPs have unique properties like thermal actuation, anisotropic swelling, and soft elasticity. Therefore, they can be good actuators and sensors.[4] One of the most famous and classical applications for LCPs is Kevlar, a strong but light fiber with wide applications, notably bulletproof vests.
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Solid LCP | |
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Specific Gravity | 1.38 to 1.95 |
Elasticity modulus (E) | 8530 to 17200 MPa |
Tensile strength (σt) | 52.8 to 185 MPa |
Tensile Elongation (%) | 0.26 to 6.2 |
Notched Izod Impact | 21.0 to 82.5 kJ/m2 |