How good is the high elasticity of the rubber sheet

Although the rubber sheet has outstanding high elasticity, relying solely on it cannot produce rubber products suitable for national defense, national economy and people's living needs.

For example, natural rubber is only in the temperature range of 5-35 ° C has elasticity is high. If the temperature is too high, it will become soft, and if the temperature is too low, it will become hard. No matter the temperature is too high or too low, the elasticity of natural rubber will be reduced or even disappeared. At the same time, its strength will be reduced, its abrasion resistance, acid and alkali resistance and solvent performance will be worse.

Therefore, manufacturers will add some specific chemicals in rubber raw materials, that is, rubber compounding agents. These chemicals change the structural characteristics and performance of rubber, so that it can make products that meet the practical application and improve rubber performance. According to the role and properties of chemical additives, it can be divided into the following types:

1.Vulcanizing agent. Adding a certain amount of vulcanizing agent to the rubber raw material can promote the cross-linking of rubber molecules to form a network structure, thereby improving the elasticity and abrasion resistance of rubber products. We call this reaction vulcanization. The most common vulcanizing agent is sulfur. Other vulcanizing machines include sulfur organic compounds, peroxides, metal oxides, etc.

Some of the above vulcanizing agents are only suitable for certain types of rubber, and some are general-purpose and suitable for a variety of rubbers.

2. Vulcanizing propellant. The vulcanization propellant can be decomposed into active molecules when heated, so that sulfur and rubber molecules can be quickly crosslinked at a lower temperature. Therefore, it can advance the vulcanization speed of rubber, shorten the vulcanization time, and improve the physical and mechanical functions of rubber. Commonly used vulcanized propellants include inorganic propellants such as calcium oxide and magnesium oxide, organic propellants such as propellant M, propellant D, propellant DM (diphenyl disulfide), and T M, T, D agent. The effectiveness of organic propellants is high. Since the advent of organic propellants, the status of inorganic propellants has gradually declined. Of course, the strength of various types of organic propellants on rubber vulcanization are different.