Precautions for using natural dental adhesives
Analysis of dental glue is used to meet the needs of baby teeth itch
The advantages and disadvantages of environmentally friendly natural rubber toys
Natural rubber has a series of excellent physical and mechanical properties, is the best comprehensive performance of rubber. Natural rubber has both advantages and disadvantages. The following is a brief introduction of the advantages and disadvantages of natural rubber and its application.
What is the main material of natural latex?
Latex is a natural material taken from rubber tree SAP
Structural Formula of Natural Rubber Physical properties of natural rubber:
Generally, it is a flake solid with a relative density of 0.94, refractive index of 1.522, and elastic film content of 2 ~ 4MPa. It softenes at 130 ~ 140℃,
The difference between synthetic rubber and 100% natural rubber
Synthetic rubber is a highly elastic polymer made by artificial synthesis. Also known as synthetic elastomers
The significance of toys for children's growth is as follows:
1, first of all, toys can stimulate children's interest, so that they can easily learn knowledge in the process of playing. Now there are a lot of educational toys on the market, these toys contain a wealth of common sense of life, as well as some simple humanistic knowledge.