ADHVM010 Rubber Dissolving（抗利尿激素 vm 010橡胶溶解）.pdf

application data ADH-VM-010 ROSS VERSAMIX EXCELS AT RUBBER DISSOLVING FOR A VARIETY OF APPLICATIONS • Industry: Rubber Adhesives • End Product: Rubber Solutions • Machine: VersaMix BACKGROUND The dissolution of natural and synthetic rubber to produce a solvent-based rubber solution is a requirement for a variety of industrial applications such as: • Rubber-based adhesives and sealants. • Printing blankets. • Automotive air bags. Many types of elastomers are used including: • Neoprene • Butyl Rubber • Nitrile Rubber • Styrene- Butadiene Rubber • Polyurethane • Natural Rubber • Silicone Rubber Solvents used to dissolve these rubber types include: • Toluene • Methyl Ethyl Ketone • Acetone • Hexane 300 Gallon VersaMix used for rubber dissolving. • Methyl isobutyl Ketone (continued on next page) ADH-VM-010 (Page 2) PROBLEM In the past, the equipment used to dissolve rub- ber into solvent was based on low speed propeller or turbine-type agitators in vessels (known as churns). These devices, although effective, yielded batch cycle times from 8 to 24 hours. Shear-Bar mixers (Ross Model #361)aided in fur- ther reducing cycle times by providing a method to cut the rubber while in process. This relatively old design combines a centrally located vertical shaft with several rows of horizontal bars staggered