widely used germany chemical rubber accelerator detu
widely used germany chemical rubber accelerator detu
widely used germany chemical rubber accelerator detu
widely used germany chemical rubber accelerator detu
widely used germany chemical rubber accelerator detu
  • What vulcanizing agent is used in rubber?
  • Elemental sulfur is the predominant vulcanizing agent for general-purpose rubbers. It is used in combination with one or more accelerators and an activator system comprising zinc oxide and a fatty acid (normally stearic acid). The most popular accelerators are delayed-action sulfenamides, thiazoles, thiuram sulfides, dithocarbamates and guanidines.
  • Can thiurams be used as vulcanization accelerators in rubber glove production?
  • Even though the use of thiurams as vulcanization accelerators in rubber glove production has been reduced and dithiocarbamates and mercaptobenzothiazole derivatives are now more commonly used [24, 34], positive patch test reactions to thiurams have been found more common than positive reactions to dithiocarbamates [12, 23].
  • Why are accelerators used in vulcanizing elastomers?
  • Accelerators are added in small amounts to speed up the curing of adhesives by reducing the cure time and temperature of elastomers, particularly latex systems. The selection of an accelerator will depend on the specific vulcanizing system and curing properties.
  • Do thiourea accelerators decompose to give isothiocyanates?
  • Thiourea accelerators may decompose to give isothiocyanates . The only two guanidines that are used on a commercial scale are diphenyl guanidine (DPG) and N,N′ -diorthotolyl guanidine (DOTG). Both guanidines by themselves have a rather slow cure rate and require the use of zinc oxide for activation.