What is PVC Compound?
A compound is defined as a substance formed when two or more elements are chemically bonded together. Polyvinyl chloride, or PVC, could be the third most widely used polymer in the global world, falling behind only polyethylene and polypropylene in terms of high amount usage. A highly versatile and cost-effective material, it has distinguished itself internationally as a durable and proven synthetic material utilizing the range that is the widest of applications of any plastic.
But how do you know about the way that PVC resin transform to vinyl compounds?
A variety of these special additives are combined with the original polymer base before PVC can be made into a specific product. These additives can consist of lubricants, stabilizers, fillers, pigments, and other people. The selected ingredients are blended with the polymer in a procedure called compounding, which may be accomplished through various practices that incorporate blending and/or melting. The 2 main types of the product are rigid and flexible PVC compounds.
The difference between flexible and rigid PVC compounds is rather straightforward.
Rigid PVC compounds sometimes listed as rPVC or uPVC (unplasticized) – have high hardness, excellent mechanical properties, and high melt point. These work well in some applications, such as deck and rail or for pipe fittings, but there are other applications that call for a less rigid, more malleable material.
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Flexible PVC compounds are formulated to meet performance requirements for applications such as medical tubing, electrical wiring, automotive body side molding, and garden hose just to mention a few. They are also formulated with our customer’s processability needs in mind. Flexible PVC compounds contain plasticizers, softening agents which help give them “rubber-like” properties.
Market needs, scientific advancements, regulatory guidelines and raw material economics compel R&D technicians and formulation engineers to push the envelope, looking for more versatile and cost-effective materials to use in their custom compound formulations. Due to their inherent versatility, vinyl compounds have proven to be very cost-effective materials across many markets and applications.