But a few years later, after an advertising manager heard about it, he discovered its potential as a toy, and plasticine quickly caused a sensation. It was even used in apollo 8's space capsule to prevent tools from flying around in the spaceship. Now answer the question: one of the components of plasticine is a polymer of dimethyl silicone oil, and this polymer is composed of long-chain molecules-think of spaghetti. Adding boric acid will make the molecules connect with each other at different points, transforming the liquid polymer into a solid compound.
The link of dimethyl silicone oil in plasticine is not so close, so plasticine is not fragile and will not be broken by a hammer, but it will be punctured by slight pressure. The problem is that no one can find its use. But a few years later, an advertising manager heard about this thing. He found its potential as a toy, and plasticine soon became a moving thing. It was even used in the capsule of the apollo 8 space mission to stop flying in the spacecraft.
Now to answer your question: one of the components of plasticine is a polymer of dimethyl silicone oil, and this poly-4 is composed of long-chain molecules-think of spaghetti. Adding boric acid will make the molecules connect with each other at different points, transforming the liquid polymer into a solid compound. Dimethyl silicone oil is so closely linked in plasticine that plasticine is not fragile and will not be broken by a hammer, but it will be punctured by slight pressure.