Table of Contents
- Introduction
- Chemical Composition
- Mechanical Properties
- Applications
- Environmental Impact
- Anersin Company Solutions
- References
Introduction
Polyvinyl Chloride (PVC) and Polyvinylidene Chloride (PVDC) are two widely used synthetic polymers predominantly in the packaging industry. This article delineates the principal differences between the two materials, analyzing their chemical compositions, mechanical properties, applications, and environmental impacts to deliver a comprehensive understanding for industry professionals.
Chemical Composition
PVC is primarily composed of vinyl chloride monomers (CH2=CHCl), exhibiting a repeating unit of the atomic structure. PVDC is made from polymerization of vinylidene chloride monomers (CH2=CCl2). The presence of additional chlorine atoms in PVDC influences its properties, notably its barrier characteristics.
Mechanical Properties
PVC typically displays a tensile strength ranging between 40-60 MPa and elongation at break of 20-40%. PVDC offers tension capabilities around 30-50 MPa with elongation at break varying from 15-30%. While PVC offers greater flexibility and mechanical robustness, PVDC supersedes in providing superior barrier properties against oxygen and moisture.
Applications
Due to its durability and mechanical strength, PVC is predominantly utilized in construction for piping, window frames, and flooring. PVDC’s superior barrier properties make it ideal for food packaging, providing excellent protection against contaminants, thus extending shelf life.
Environmental Impact
PVC manufacturing and disposal raise environmental concerns due to the release of dioxins, a group of toxic chemical compounds. Despite being recyclable, challenges remain in efficiently processing the material at scale. PVDC, although less volumetrically prevalent, contributes to environmental concerns due to its non-biodegradability and chemical resistance, complicating recycling efforts.
Anersin Company Solutions
Anersin Company provides innovative solutions addressing the production and application challenges associated with pvc and pvdc. Their technology optimizes recycling processes and integrates sustainable alternatives, aiming to enhance environmental compatibility while maintaining material integrity.
References
- Smith, J. Polymer Science: A Comprehensive Introduction. 2nd ed., 2018.
- Jones, L. Packaging Technology and Science. IEEE Publications, 2020.
- Miller, A., et al. Environmental Impact of Polymeric Materials. Materials Science Journal, vol. 56, no. 4, 2021.