How Do Various Nonwoven Medical Gowns Compare as Barriers Against UV Radiation

by | Nov 4, 2022 | Biology, Experiments

Introduction

In this experiment, we will see how do various nonwoven medical gowns compare as barriers against UV radiation and we will be determining the effect of non-woven medical gowns acting as the barrier of ultraviolet radiation.

We will also be determining if this gown acts as bacterial resistance or not. The success of this experiment will help us in making ultraviolet protective fabrics.

Aim

To determine the effect of the nonwoven medical gown on ultraviolet radiation.

Theory

1. Non-Woven medical fabrics are important in the medical, thermal insulation industry and surgery.

2. These are used in bandages, surgical clothing, adhesive tapes, wound dressing etc.

3. Nonwoven fabrics can be made naturally and synthetically.

4. They are used widely because of the low cost and give 100% performance.

Requirements

1. 17 non-woven medical gown fabrics

2. Spectronic 20+ spectrophotometer

3. Electron microscope

4. Notebook

5. Homemade frames

6. UV light

Procedure

Step1: Take 17 non-woven medical gown fabrics.

Step 2: Using a Spectronic 20+ spectrophotometer, test the absorption and transmission of UV rays through the fabrics.

Step 3: Take a homemade frame and sandwich a sample of the non-woven medical gown into this frame.

Step 4: Use an empty frame as a controller.

Step 5: Place this sample inside of a testing chamber and penetrate the UV light through it.

Step 6: To determine the characteristics of the sample, scan it through an electron microscope.

Step 7: Record your observations.

Observation

1. By scanning the sample through an electron microscope, we find that the non-woven fabrics are made up of threads.

2. The higher ranked fabrics were composed of lots of threads for creating a closer entanglement. For instance, 55/45 polyester of wood pulp, the best performer

3. The lower-ranked fibres were the ones that had large holes and loose weaves. For instance, light 100% polyester fabrics are the worst performers.

Result

1. We saw that the performance of thinner and lighter fabrics was lower than the thicker and heavier fabrics.

2. The area of air space helps the most in determining the better fabrics.

3. The presence of small holes in a piece of the fabric means less transmission of UV radiation and higher performance.

4. The presence of large holes in nonwoven fabrics means the large transmission of UV radiation and lower performance.

Precaution

1. Take help from a lab assistant.

2. Record your observation cautiously.

3. Make sure fabrics are not torn.

Conclusion

In this experiment, we tested the performance of non-woven medical gowns when it comes into contact with UV radiation.

Viva Questions with Answers

Q.1 What was the aim of your experiment?

ANS. We aimed to determine the effect of the non-woven medical gown on ultraviolet radiation.

Q.2 Which kind of fabric does not allow the ultraviolet radiation to pass through it?

ANS. The fabrics that have small holes and are thick and heavy do not allow the UV radiation to pass through them?

Q.3 Which kind of fabric allowed the UV light to pass through it?

ANS. The fabrics that have large holes and are thin and light allow the UV light to pass through them.

 

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