Function Of Stearic Acid In Rubber Compounding

This acid is insoluble in water and soluble in ethanol.

Function of stearic acid in rubber compounding.

Akrochem stearic acid tp mixture of stearic and palmitic acids akrochem corp. High purity triple pressed tp stearic acid used in rubber compounding as an activator. 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. In doing so they react with active sites in the rubber to form crosslinks between the chains.

Plasticizer process aid. Together they form rubber soluble complexes with the accelerators making them better able to react with sulphur to develop cross links. The iupac name is octadecanoic acid it is a waxy solid and its chemical formula is c 17 h 35 co 2 h. Stearic acid is the common name for octadecanoic acid which is a saturated fatty acid stearic acid for rubber vulcanization accelerator.

The result obtained is an indication that stearic acid has varying degree of influence on the physical properties of natural rubber vulcanisates. Rubber grade stearic acid offered by us is sourced from reputed organizations. Obtained as a result of the variation of stearic acid level from 0 00 to 6 00 pphr. The stearic acid is involved in almost all rubber compounds.

It is used in relatively low amounts up to 3 0 phr but has a multifunctional effect on their properties and processing. Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. Excellent color low iodine. 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.

The copper substrate should be cleaned pickled and soaked in 10 volume hno 3 for oxide elimination. 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. Dispersing agent and accelerator activator in rubber compounds. First activate the entire curing system.

The rubber grade stearic has a lower c18 content than the other stearics we offer ranging between 20 and 55. As part of the activating system stearic acid in conjunction with. If you need a higher stearic content check out our 70 stearic acid or our 90 stearic acid. Its primary uses are in more industrial type applications.