Features of SUMIKASUPER LCP

SUMIKASUPER LCP is a thermotropic liquid crystalline polyester that possesses the highest heat resistance among all engineering plastics.
Its basic chemical composition is shown in the diagram below. Thermotropic liquid crystalline polyester is one of the most common types of liquid crystalline polymer.

basic chemical composition of SUMIKASUPER LCP

As indicated by their name, one property of liquid crystalline polymers is that they become liquid crystalline state when they enter a molten state. This special phenomenon, unique to liquid crystal polymers, can be observed under a polarizing microscope: as the temperature of the polymer increases and it begins to melt, its light transmittance also increases significantly.

Figure 3 : Polarization Microscopic Photograph

Figure 3 : Polarization Microscopic Photograph

Figure 4 : Characteristics of Liquid Crystalline Polymer (SUMIKASUPER LCP)

Figure 4 : Characteristics of Liquid Crystalline Polymer (SUMIKASUPER LCP)
Effects of Molecular Orientation Characteristics Based on
Wholy Aromatic Compounds
Advantages Disadvantages
  • High strength and rigidity
  • Low viscosity, high moldability
  • Low shrinkage, low coefficient of linear expansion (flow direction)
  • High-speed setting, with less flash production.
  • Anisotropy (strength, shrinkage)
  • Low weld strength
  • High heat resistance (high DTUL, high heat aging resistance)
  • Soldering heat resistance
  • Flame retardance
  • Low water absorbency
  • Chemical resistance
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