1. Oxygen: Oxygen reacts with rubber molecules in the free radical chain reaction, and the molecular chain is broken or over-crosslinked, resulting in changes in rubber properties. Oxidation is one of the important reasons for rubber aging.

2. Ozone: Ozone is much more chemically active and destructive than oxygen. It also breaks molecular chains, but the effect of ozone in rubber depends on whether the rubber is deformed. When used for deforming rubber (mainly unsaturated rubber), cracks in the direction of stress will appear, that is, the so-called "ozone cracking"; When used for deforming rubber, only the surface forms a non-cracking oxide film.

3. Heat: Increasing the temperature will lead to the pyrolysis or thermal crosslinking of the rubber. But the basic function of heat is activation. Thermal oxygen aging is a common aging phenomenon, its purpose is to increase the oxygen diffusion rate of rubber, activate the oxidation reaction of rubber, and thus accelerate the oxidation reaction rate of rubber.

4. Mechanical stress: Under the action of repeated mechanical stress, the rubber molecular chain breaks to form a free chain, resulting in an oxidative chain reaction, forming a mechanical-chemical process. Mechanical fracture and mechanical activation and oxidation of molecular chains. Where it dominates depends on the conditions on which it depends. In addition, it is easy to cause ozone cracking under the action of stress.

5. Moisturizing: The role of water has two aspects: rubber in wet air rain or long-term immersion in water, easy to break, because the water-soluble substances in rubber and hydrophilic groups and other components are extracted with water, caused by hydrolysis or absorption. Especially under the alternating action of water immersion and atmospheric exposure, rubber damage will accelerate. However, in some cases, moisture has no destructive effect on rubber, and even has the effect of delaying aging.

6. Oil: In the process of use, in contact with the oil medium for a long time, the oil will penetrate into the rubber and cause expansion, resulting in a decline in the strength of the rubber and other mechanical properties. Oil can make the rubber expand, because the oil seeps into the rubber, resulting in molecular diffusion, so that the network structure of the vulcanized rubber changes.

Other factors that affect rubber include chemical media, variable metal ions, high-energy radiation, electricity, and biology.