PVC (polyvinyl chloride) is a common thermoplastic polymer for industrial and domestic applications. Lead is a toxic heavy metal that has been used in PVC yarn for many years for certain purposes, but its adverse effects on human health and the environment led to the development of PVC alternatives. In this article we will discuss the difference between PVC and lead-free PVC.
Lead-free PVC is a type of PVC that does not contain any lead. The lack of lead makes lead-free PVC safer and more environmentally friendly than traditional PVC. Lead-free PVC is usually made with calcium, zinc, or tin stabilizers rather than lead-based stabilizers. These stabilizers provide the same properties as lead stabilizers but without adverse health and environmental effects.
The main difference between PVC and lead-free PVC is the presence of lead. PVC products generally contains lead stabilizers, which can leach out of the material and cause environmental damage. Lead is a toxic heavy metal that can cause neurological and developmental problems, especially in children. Lead-free PVC eliminates the risk of lead formation.
PVC is not biodegradable and can persist for hundreds of years in the environment. When burned or improperly disposed of, PVC can release toxic chemicals into the air and water. Lead-free PVC is more environmentally friendly because it contains no lead and can be recycled.
PVC and lead-free PVC can have similar properties, but there are some differences. Lead stabilizers can improve PVC’s properties such as thermal stability, weather resistance, and processability. However, lead-free PVC can achieve similar properties by using additional stabilizers such as calcium, zinc and tin.
Due to the use of additional stabilizers, lead-free PVC can cost more than conventional PVC. However, the cost difference is not significant, and the benefits of using lead-free PVC outweigh the costs.
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