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DIAB Divinycell® HCP 70 Polymer Foam
Categories: Other Engineering Material; Composite Core Material; Polymer

Material Notes: Divinycell HCP grade has been developed to meet the demand for a high-performance, lightweight buoyancy material with excellent characteristics. It is widely used in pipelines, floatation units, diving bells and impact protection structures. As a result of its excellent hydraulic compressive properties and closed cell structure, it has very low buoyancy loss and water absorption under long-term loading conditions. HCP stands for Hydraulic Crush Point, indication the most important feature of this class of materials. HCP is defined as the point of pressure in Bar, where the material, when subjected to an increasing pressure of 1-2 Bar/sec, has lost 5% of its initial volume. The design of subsea buoyancy applications is complex and consideration has to be given to the required buoyancy loss and updrift over the expected lifetime and service conditions, with respect to long and short term hydraulic compressive creep, water absorption and hydraulic fatigue.

Operating temperature is -200 to 80°C. Lifetime must be taken into consideration for the very low and high temperatures. Maximum processing temperature is dependent on time, pressure and process conditions. Normally Divinycell HCP can be processed up to 90°C without dimensional changes.

Information Provided by DIAB

Vendors:
Available Properties
  • Density, ISO 845
  • Tensile Strength, Ultimate, ASTM D1623, Perpendicular to the plane
  • Elongation at Break, ASTM C273, In Shear
  • Tensile Modulus, ASTM D1621, Extensometer; Perpendicular to plane
  • Compressive Strength, ASTM D1621, Perpendicular to the plane
  • Shear Modulus, ASTM C273
  • Shear Strength, ASTM C273
  • CTE, linear
  • Maximum Service Temperature, Air, Continuous
  • Minimum Service Temperature, Air, Continuous
  
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Manufacturer Notes:
DIAB Inc.

Category Notes
Plastic

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