Function Of Stearic Acid In Rubber Compounding

The iupac name is octadecanoic acid it is a waxy solid and its chemical formula is c 17 h 35 co 2 h.

Function of stearic acid in rubber compounding.

Stearic acid ˈ s t ɪər ɪ k steer ik s t i ˈ ær ɪ k stee arr ik is a saturated fatty acid with an 18 carbon chain. It is used in relatively low amounts up to 3 0 phr but has a multifunctional effect on their properties and processing. First activate the entire curing system. These rubber grade stearic acid are used as an activator dispersing agent plasticize and lubricant in rubber compound processing.

Plasticizer process aid. The copper substrate should be cleaned pickled and soaked in 10 volume hno 3 for oxide elimination. If you need a higher stearic content check out our 70 stearic acid or our 90 stearic acid. Stearic acid is the common name for octadecanoic acid which is a saturated fatty acid stearic acid for rubber vulcanization accelerator.

Excellent color low iodine. Together they form rubber soluble complexes with the accelerators making them better able to react with sulphur to develop cross links. Rubber grade stearic acid offered by us is sourced from reputed organizations. As part of the activating system stearic acid in conjunction with.

Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. The rubber grade stearic has a lower c18 content than the other stearics we offer ranging between 20 and 55. The result obtained is an indication that stearic acid has varying degree of influence on the physical properties of natural rubber vulcanisates. Akrochem stearic acid tp mixture of stearic and palmitic acids akrochem corp.

Dispersing agent and accelerator activator in rubber compounds. Its name comes from the greek word στέαρ stéar which means tallow the salts and esters of stearic acid are called stearates as its ester stearic acid is. Zinc oxide and stearic acid together form zinc soap improve the solubility of zinc oxide in the compound and with the accelerator to form a complex this complex is particularly lively it reacts with sulfur to produce a very strong vulcanizing agent. Activators in rubber formulation are typically metal oxides zinc oxide and fatty acids stearic acid.

The stearic acid is involved in almost all rubber compounds. Obtained as a result of the variation of stearic acid level from 0 00 to 6 00 pphr. This acid is insoluble in water and soluble in ethanol. In doing so they react with active sites in the rubber to form crosslinks between the chains.