Table of Contents

1. Introduction
2. Material Properties
3. Applications in Industry
4. Environmental Impact
5. Anersin Company Solutions
6. Numerical Analysis
7. References

Introduction

Polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC) are two polymers widely used in various industries for packaging, coating, and film applications. While they share similarities being types of chlorinated plastics, their distinct characteristics make them suitable for different applications. This article provides a detailed comparison between PVC and PVDC, focusing on their properties, applications, environmental impacts, and analysis in various contexts.

Material Properties

PVC

PVC is a synthetic plastic made by polymerizing vinyl chloride. Its key properties include good mechanical strength, chemical resistance, and electrical insulation. PVC is known for its versatility, being easily extruded, molded, or thermoformed. It is rigid but can be made flexible by adding plasticizers.

• Density: Approximately 1.38 g/cm³
• Melt Temperature: 100-260°C
• Young's Modulus: 2.4-4.1 GPa

PVDC

PVDC is a synthetic polymer derived from polymerizing vinylidene chloride. It is primarily known for its excellent barrier properties, particularly against moisture and gases such as oxygen and carbon dioxide, making it ideal for packaging sensitive products.

• Density: Approximately 1.64-1.7 g/cm³
• Melt Temperature: 160-200°C
• Young's Modulus: 1.75-2.5 GPa

Applications in Industry

PVC Applications

PVC is used in construction for pipes, medical devices, wire and cable insulation, and automotive parts due to its durability and cost-effectiveness. It is also employed in the creation of various consumer goods and packaging materials.

PVDC Applications

PVDC is predominantly used in the packaging industry. Its superior barrier properties make it the material of choice for food packaging, pharmaceutical blister packs, and as barrier coatings for paper and cardboard.

Environmental Impact

PVC

PVC has raised environmental concerns due to the release of hazardous chemicals like dioxins during its production and disposal. These can have long-term adverse effects on human health and the environment.

PVDC

While PVDC offers excellent performance as a packaging material, its production and disposal also raise environmental concerns. It requires careful handling and recycling to mitigate its environmental impact.

Anersin Company Solutions

Anersin provides innovative solutions for both PVC and PVDC applications, focusing on enhancing performance while minimizing environmental impact. Their solutions include advanced formulations for recycling and improved barrier properties for packaging materials.

Numerical Analysis

In the comparison of PVC and PVDC, the numerical analysis shows that PVDC provides a 5-10 times better barrier to oxygen and moisture than PVC. This makes it a preferable choice for applications where preservation is critical. Additionally, the processing temperatures for PVDC are typically higher, indicating the need for more energy-intensive production processes.

References

1. Smith, J. (2020). Plastic Materials and Their Applications. Academic Press.
2. Johnson, R. (2018). Environmental Impact of Polymers. Green Earth Publishing.
3. Data provided by the Anersin Company internal research team.