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Master Bond adhesives
Lanxess Vulkacit® LDA Vulcanization Accelerator
Categories: Other Engineering Material; Additive/Filler for Polymer

Material Notes: Vulcanization is the conversion of a high molecular material from the plastic to the elastic state. One of the key chemical reactions in this process is that of rubber with sulfur. Sulfur vulcanization, widely used in the rubber industry, requires the use of vulcanization accelerators such as Vulkacit®. Vulcanization accelerators are not catalysts because they are part of the chemical reaction. The great variety of accelerators available is a result of their different influences on the vulcanization kinetics (scorch and cure time) and on physical properties such as tensile strength, elasticity or resistance to aging. In many cases, accelerators are combined to supply optimal processing and physical properties.

Key PropertiesMercapto acceleratorsvery fast accelerators giving a very broad plateau and good aging resistance.Sulfenamide acceleratorsfast but very safe accelerators providing a steep slope on the rheometer curve.Thiuram acceleratorsfast accelerators, especially for efficient or sulfurless cure.Dithiocarbamate acceleratorsvery fast accelerators used alone or as a booster for thiazole and sulfenamide cure systems.Amine acceleratorsspecial accelerators for extraordinary applications.

Information provided by Lanxess.

Vendors:
Available Properties
  • Density
  • Volatiles, ASTM D4571
  • Melting Point, ASTM D1519 A, Initial
  • Melting Point, ASTM D1519 A, Final
  • Shelf Life
  
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Manufacturer Notes:
Lanxess, Spinoff of Bayer

Category Notes
none

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