Views: 12043 Author: Site Editor Publish Time: 2006-06-29 Origin: Site
As a wharf fender, ultra-high molecular weight polyethylene fender board can prevent damage caused by the collision between ships and wharves. It has good impact resistance and replaces traditional steel fenders. It is widely used in major ports and wharves.
Cold resistance:
When the molecular weight of high-density polyethylene exceeds 500,000, the embrittlement temperature drops to -140°C. And ultra-high molecular weight polyethylene (1.5 million-7.2 million molecular weight) can even work under liquid nitrogen or liquid helium, and its service temperature can reach -269°C, and it still has certain mechanical strength. So that it will not crack when soaked in seawater all the year round.
Water absorption:
The water absorption rate of ultra-high molecular weight polyethylene board is extremely low (<0.01%), and its physical and mechanical properties have nothing to do with the temperature factor in the working conditions of use.
Excellent chemical resistance:
Ultra-high molecular weight polyethylene has high chemical stability, and can resist the action of various corrosive media (acid, alkali, salt) and organic solvents such as acid, alkali, and salt within a certain temperature and concentration range.
It has excellent high impact resistance, good toughness, and good environmental stress crack resistance.
Anti-ultraviolet, long service life.