Preparation of Water Resistant Glue from Milk Plastic: An Experimental Study

In this method of extracting Milk Plastic Water Resistant Glue from Casein, three types of milk have been used: soya milk, fresh cow milk, and pastured milk. While the milk was heating, casein was extracted and vinegar was added. Casein was separated and left to dry for two to three days. The obtained milk plastic was heated with distilled water. 1N of NaOH is added and cooked for a short while after a pinch of papain has been heated for 4 hours. The glue was produced by centrifuging the acquired sample at a speed of 12000 rpm. At -200C, the glue is kept safe. To test the water resistance, 2 pieces of card board were adhered together with this glue and submerged in water. After being stable for roughly 10 minutes, it was then loosened. When made with pure milk, it is slightly more expensive than other glues; but, if made with waste milk products, the price will be lower.