Dongguan Chenyu Rubber Products Co., Ltd.

Rubber band is a general term for highly elastic polymer compounds. Because it has superior high elasticity, good flexibility and fatigue resistance in a wide temperature range above and below room temperature, wear resistance, electrical insulation, water resistance, and good medium resistance, corrosion resistance, high and low temperature resistance, etc. The performance is unmatched by any other product. Therefore, rubber bands, also known as elastomers, have high elasticity: they have particularly large elastic deformation and can be stretched to % or even more. After deformation, the external force is removed and the original shape can be quickly restored permanently. The deformation is very low and the hydroelastic modulus is extremely low. That is to say, a small force will cause a large deformation of the rubber band. The high elastic deformation comes from the fact that the bonds in the molecular chain of its macromolecule are relatively easy to rotate under the action of external force. The whole macromolecule is easy to deform because the rotation barrier of its bonds is relatively low, so the modulus is low. After the external force is removed, the thermal movement of the molecules is easy. It will automatically restore its original deformation, that is, change in the direction of entropy increase. The entropy value of the stretched system of the rubber band will decrease and become hotter. So the modulus is high and the stretch becomes cool.
To what extent does high elastic deformation reach and at what speed it returns to what range after external force is removed. It is defined in D as follows: The material of the rubber band is rubber, and rubber is a material that can quickly and powerfully recover its deformation under large deformation and can be modified. Modified rubber is essentially insoluble (but can tolerate Rubber modified in boiling acetoethyl ketone and other solvents is stretched to times of its original length at room temperature (-degree) and held there. After external force is removed, it can return to its original length inside
Uses: They Can be used to tie lunch boxes, stationery, books, packages, etc. Children can also use it as a decoration and carry it on their hands. They can also learn about different shapes of animals, fruits, cartoon characters, etc. It is the best gift for children.
Silicone rubber bands are a popular jewelry at home and abroad. They are simple, generous, good quality, environmentally friendly, versatile, novel, non-toxic, tasteless, non-deformable, resistant to high temperatures, cold, waterproof, transparent and anti-aging. The hair is not tangled, the hair is elastic and does not break, and is especially loved by children, students and ladies.
_