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  • Jiangsu Zobon Conveyor Belt Co.,Limited

  •  [Jiangsu,China]
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Jiangsu Zobon Conveyor Belt Co.,Limited
Home > News > Which factors can influence the adhesive property and effect of Teflon tape
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Which factors can influence the adhesive property and effect of Teflon tape

The adhesive performance of Teflon tape isinfluenced by factors like temperature, humidity, chemical medium andultraviolet ray, especially high temperature, high humidity and ultravioletray. When adhesive is exposed in the high temperature environment, certaindegradation will happen and mechanics performance will reduced after hightemperature test; mechanics performance will reduced after thermal aging, thusinfluences adhesive performance. Being shone by ultraviolet ray for a long timewill lead color fading, embrittlement and even chemical decomposition of tapeand also influence the adhesive performance and usage effect.

The adhesivestrength of the adhesive will decrease in humid environment because some chemicalbonds in the adhesive can easily be hydrolyzed. The chemical structure ofadhesive base stock, type and dosage of catalyst and the flexibility ofadhesive will affect the speed of hydrolysis. Only when you choose adequatelythe dosing of base stock and catalyst, can adhesive intensity be improved.

In order toavoid the influence of environmental factors, if the adhesive is used undersevere environment, we should make the simulation test of environment, and atthe same time, we should also ensure adhesive-bonded joint can bear the effectof external force.

Both thesurface roughness and surface profile of covering-and-coating products willexert an influence on the adhesive strength of Teflon tape. During the coveringand coating period, time, temperature, pressure and the pollution level ofsurface all could affect the adhesive property and effect.

For example,low temperature could make the tape become hard and brittle, and aggravatestress concentration. What's more, under low temperature, the tape is easy todeform and can not obtain relatively stable mechanical properties; the tapewill be easier to be softened under high temperature, which will reduce theshearing strength.

When youintend to improve the adhesive performance and effect of Teflon Tape and increase itsservice life, you should reasonably avoid the negative factors in the usingprocess.

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