Vulcanized vegetable oil

Other processing aids utilized in tires are vegetable oils (fatty acids, fatty acid esters/alcohols, and metal salts of these oils), naturally occurring resins such as pine tar, hydrocarbon resins from petroleum stUlbottoms, and vulcanized vegetable oils (WOs). WOs were utilized heavily in the early 1900s, but are no longer used extensively in tires. 

Chem. Descrip. Sulfur-vulcanized vegetable oil Uses Processing aid for rubber compounding and syn. polymers, rollers used in coatings industry, and printers blankets and rolls Features High resist, to oil andsoivs. 

Aromatic mineral oil plasticizers are highly compatible with nitrile rabber, NBR, naphthenic oils are only partially compatible, and paraffinic mineral oil plasticizers are incompatible with nitrile rabber.Dibenzyl ether, phthalates, and poly glycol ether are the most freqnently nsed plasticizers in NBR. Also, synthetic or fatty acid esters, vulcanized vegetable oils (factice), " chloroparaffins, and phosphate plasticizers are infrequent use. 

Elemental sulfur is commonly used to manufacture brown vulcanized vegetable oil (WO), which is commonly used as a rubber compounding ingredient. 

Sulfur reacts with chlorine to form sulfur monochloride (SjClj), which is used to synthesize DTDM (sulfur donor for efficient cures), alkyl phenol disulfide (accelerator), and vulcanized vegetable oil (WO), which is used as a processing aid for rubber. 

The petroleum oils are used primarily with nonpolar elastomers and are either naphthenic, paraffinic, or aromatic, depending upon elastomer compatibility, volatility, and expected product service conditions. Vegetable oils are typically from castor or tall oils. Vulcanized vegetable oil products have the unique ability to promote flow imder shear but to resist high... 

Unsaturated, low-pH, and sulfur-bearing materials such as resins, acidic light-colored fillers, and vulcanized vegetable oils should be avoided because of the presence of peroxides. 

Plasticizers, Process Oils, Vulcanized Vegetable Oils... 

The field of synthetic esters itself comprises literally thousands of products. Refined petroleum process oils for the rubber industry number in the hundreds because of the varieties of crude oil available around the world. Similarly, with the dozens of vegetable oils available for the production of vulcanized vegetable oils, we are baffled by the variety of seemingly similar but surprisingly different factices offered throughout the world rubber industry. 

VULCANIZED VEGETABLE OIL (WO)—FACTICE 12.6.1 Typical Vegetable Oils in Factice... 

The choice of vulcanizing agents has been much the same for the past 150 years with the exception of the use of an isocyanate cross-linker added during the last 50-60 years. Elemental sulfur (brown factice), sulfur chloride (white factice), hydrogen sulfide (light yeUow/translucent factice), isocyanate, and peroxide (very white/hard/translucent factice) comprise the main types employed for vulcanizing vegetable oils. 

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