Adhesive tape strength
The materials required for this science fair project:
- A roll of cellophane tape
- A roll of duct tape
- A roll of scotch tape
- A roll of electrical tape
- A roll of masking tape
- 2 chairs or stools
- A metal steel plate (approximately 50mm x 500mm x 5mm)
- 5 pieces of string, each approximately 500mm long
- Weights – 50grams x 2 pieces, 100grams x 10 pieces, 1kg x 3 pieces
- A ruler
1. For this science fair project, the independent variable is the type of adhesive tape used i.e. cellophane tape, duct tape, scotch tape, electrical tape and masking tape. The dependent variable is the adhesive strength of the tape. This is determined by hanging weights at the end of a piece of string, which is held in place on a steel plate by the tape. It is then observed as to how long it takes for the adhesion of the tape to give way. The constants (control variables) are the size of the tape, the steel surface, the room temperature and the type of weights used.
2. Place the 2 stools about 400mm apart. Clean the surface of the metal steel plate . It is then placed onto the 2 stools.
3. Cut a piece of cellophane tape about 200mm long. Take a piece of string and stick the middle of the string to the bottom center of the steel plate using the cellophane tape. The surface of cellophane tape is pressed down so that it is properly adhered to the surface of the steel plate.
4. A knot is tied at one end of the string and weights are gradually added to the end of the string until the adhesion of the tape gives way and the weights drop onto the floor. The amount of weight required to counter the adhesiveness of the tape is calculated and the results are recorded in the table below.
5. Procedures 2, 3 and 4 are repeated with the duct tape, scotch tape, electrical tape and masking tape. The results are recorded in the table below.