Polyvinyl chloride (PVC) film is known for its excellent chemical resistance to a wide range of substances. This chemical resistance is one of the key properties that make PVC a popular choice for various industrial and commercial applications. Here is an overview of the chemical resistance of PVC film to different types of chemicals:

1.Acids:

PVC is generally resistant to many acids, including dilute acids like hydrochloric acid (HCl) and sulfuric acid (H2SO4). However, concentrated or highly corrosive acids can degrade PVC over time.

2.Bases:

PVC is resistant to most bases, including alkaline solutions like sodium hydroxide (NaOH) and potassium hydroxide (KOH).

3.Solvents:

PVC exhibits resistance to a wide range of organic solvents, including aliphatic hydrocarbons (e.g., gasoline), aromatic hydrocarbons (e.g., toluene), and chlorinated solvents (e.g., chloroform). It is often used for chemical storage tanks and pipes.

4.Alcohols:

PVC is resistant to many alcohols, such as ethanol and isopropanol. However, it may not be suitable for extended exposure to some ketones or esters, which are more aggressive chemicals.

5.Oxidizing Agents:

PVC is generally resistant to oxidizing agents, such as hydrogen peroxide (H2O2) and chlorine gas (Cl2). It can be used in applications involving chlorine-based water treatment.

6.Hydrocarbons:

PVC film is typically resistant to hydrocarbons, both aliphatic and aromatic. It can be used in environments where exposure to fuels or oils is a concern.

7.Salts:

PVC is resistant to a wide range of salts, including common salts like sodium chloride (table salt) and calcium chloride.

8.Water and Moisture:

PVC is inherently moisture-resistant, making it suitable for applications exposed to water and high humidity. It is used in plumbing and outdoor applications where exposure to moisture is common.

It's important to note that while PVC demonstrates good chemical resistance in many situations, its performance can be influenced by factors such as temperature, concentration of the chemical, and exposure duration. Additionally, PVC can be vulnerable to certain chemicals, such as some concentrated acids and strong bases, which may cause degradation or corrosion over time. In such cases, alternative materials like thermoplastics or thermosetting plastics with higher chemical resistance may be preferred.

When using PVC in applications where chemical exposure is a concern, it's crucial to consult material compatibility charts and conduct compatibility tests to ensure that the specific PVC formulation is suitable for the intended chemical environment.