Xinhua Xu rubber O-ring is formed aging reasons

[Xinhua] Xu oxygen occur in the rubber O-ring in the radical chain reaction with the rubber molecules, the molecular chain cracking or excessive cross-linking, resulting rubber O-ring function changes. Oxidation is one of the important reasons for the aging of the rubber O-ring.

[Xinhua] Xu advance temperature can cause thermal cracking or thermally crosslinked rubber O-rings. But the foundation is still the action of heat activation. Forward speed and activated oxygen lax oxidation reaction, and then accelerate rubber oxidation reaction rate, which is a common aging appearance - thermal aging.

[Xinhua] Xu chemical activity ozone is much higher than that of oxygen, more damaging, it is also the rubber O-ring molecular chain cracking, but the effects of ozone on the case of the rubber O-ring with the rubber without deformation or not same. As for the deformation of the rubber O-rings (mostly unsaturated rubber) occurs when the stress direction straight crack, so-called "ozone cracking"; the role of the deformation of the rubber, only the oxide film formed on the surface without turtle crack.

[Xinhua] Xu under repeated mechanical stress effects, will make the rubber O-ring molecular chain crack to form a free Tsuen, triggering oxidation chain reaction to form a force chemical process. Machinery and mechanical activation crack molecular chain oxidation process. How could a dominant, depending on local conditions may be. Moreover, under stress resulting in schematic ozone cracking.

[Xinhua] Xu light shorter, the greater the energy. Rubber O-ring damage from the effects of higher energy ultraviolet light. In addition to direct ultraviolet rays cause cracking rubber molecule chains and crosslinked, the rubber occurs due to absorption of light energy radicals initiate and accelerate the oxidation chain reaction process. After heating the outside light plays role. Another feature of the role of its director light (and heat effect is not the same) is that it primarily into raw rubber surface. Gum containing sample rate, and net cracks will appear on both sides of the so-called "outer light crack."

[Xinhua] Xu in the use of the process of long-term exposure assumptions and oil medium, the oil can penetrate into the rubber O-ring inside to make it swell, resulting in strength and other mechanical rubber function decline. Oil makes rubber swell is due to the oil into the rubber O-ring after the occurrence of the molecules to one another slack, so that the network structure of vulcanized rubber changes.

[Xinhua] Xu role water has two aspects: the rubber O-ring in the humid air to rain or immersed in water, the simple damage, which is due to the rubber O-rings in the water-soluble substance and a hydrophilic group and other ingredients dissolved water extraction, hydrolysis or other reasons resulting in the absorption. Especially in the role of replacement water immersion and atmospheric exposure, it will accelerate the damage the rubber O-ring. But in some cases it can not afford to water damage effect on the rubber, and even postpone the effects of aging.

[Xinhua] Xu effect on the rubber O-ring chemical elements as well as the media, variable valence metal ions, high-energy radiation, electrical and biological.

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Shenzhen XinhuaXu Rubber Products Co., Ltd

Greeting Tin Sum Shenzhen Jintian Road community after No. 350

Shenzhen Xu Xinhua Rubber Products Co., Ltd.

Shenzhen XinhuaXu Rubber Products Co., Ltd

Greeting Tin Sum Shenzhen Jintian Road community after No. 350