1. What is Density of Plastic?

Definition: Density is the mass per unit volume of a material, measured in kilograms per cubic meter (kg/m³) for plastics.

Range: Plastic density typically ranges from ~900–1400 kg/m³ depending on the type of plastic.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: The mass of the plastic is divided by its volume to determine its density.

3. Importance of Plastic Density

Details: Knowing plastic density helps in material selection, quality control, and manufacturing processes.

4. Using the Calculator

Tips: Enter the mass in kilograms and volume in cubic meters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the density range for common plastics?
A: PET ~1370-1450 kg/m³, HDPE ~940-970 kg/m³, LDPE ~910-930 kg/m³, PP ~900-910 kg/m³.

Q2: How does density affect plastic properties?
A: Higher density plastics are generally stronger but less flexible than lower density ones.

Q3: Why measure in kg/m³?
A: kg/m³ is the standard SI unit for density, making it universally comparable.

Q4: How accurate is this calculation?
A: Accuracy depends on precise measurement of mass and volume. Temperature can also affect density.

Q5: Can this calculator be used for other materials?
A: Yes, the density formula applies to all materials, though the input ranges may differ.