Origin and significance of the project.The milk protein casein (one is casein) which are substances used in industry to do glue. Paint and plastic something.When adding organic acids such as กรดแอซิติก (CH3COOH) in vinegar into milk casein are separated, which is plastic. The plastic may put, print or use to mold the desired forms. Then put the shelves behind 1-2 days to make plastic dry.Instead of pouring นมหมดอายุ away. We used to make plastic thumb. Plastic and this can use a lot. Forming or do what we want, such as do put key chain, beads, buttons, jewelry, we design the strange, which may be combined with other materials. Toys of simple to design, including the repair the damage.
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