We support you in the form of
comprehensive advice,
state-of-the-art technology
quality testing
The Laser Application Center supports you in choosing materials for all relevant laser processes.
You’re welcome to try out the following laser applications at the Center:
Laser-marking (2D and 3D)
Laser-welding
Laser-sintering
Laser-structuring
In our testing and analytical laboratories, we can perform a wide range of tests on lasered and unlasered materials to check and safeguard our high quality standards. These include
transmission measurements
Haze
scanning electron microscopy (SEM)
transmission electron microscopy (TEM)
light microscopy
tensile testing
as well as many other physical and chemical tests.
In general, long-chain semicrystalline polyamides absorb little water, are resistant to polar and nonpolar solvents, have a low tendency to creep and high impact strength, and can be used over a wide temperature range between extremly cold and high temperature. Hardly any other polymer material in this price category offers such an excellent property profile.
VESTAMID® has proven its worth in a number of application fields over many years and its many variants are used mainly for durable and technically sophisticated applications. Evonik's specialty polyamides include the following:
VESTAMID® L series: Polyamides 12 (PA 12) based on laurolactam
VESTAMID® D series: Polyamides 612 (PA 612) based on hexamethylendiamine and decanedioic acid
VESTAMID® E series: Polyamides 12 elastomers (PEBA) based on laurolactam and polyether diols ((polyether block amides)
VESTAMID® Terra: Polyamides based on renewable raw materials
VESTAMID® Care: Polyamides for medical applications
VESTAMID® NRG: Polyamides for oil and gas applications
VESTAMID® tubing at Ford, 1973
In 1963
at the K´63 plastics trade show, the former Chemische Werke Hüls AG unveils VESTAMID®, a polyamide 12 produced on the pilot-plant scale by a process developed in-house. Nobody could have imagined that the polymer specialty, regarded internally with some skepticism, would lay the foundation for high performance polymers from Evonik
The steps involved in the process are:
trimerization of butadiene
hydrogenation of cyclodecatriene to cyclododecane
oxidation of cyclododecane to cyclododecanone
reaction of cyclododecanone with hydroxylamine, to yield cyclododecanone oxime
production of laurolactam by Beckmann rearrangement, using Ziegler catalysts
1966:
The first reactor, with an output of 1,200 metric tons of polyamide 12 per year, goes into operation. Under the brand name VESTAMID®, the product is processed into compounds, coating powders, and copolyamide hot-melt adhesives.
The names VESTOSINT® for the polyamide 12 powders and VESTAMELT® for the copolyamide hot-melt adhesives are used for the first time at the K´86 plastics trade show.
The development of polyamide 612 also starts in the mid-1960s.
1970:
Chemische Werke Hüls AG and Daicel Ltd., Tokyo, establish a 50:50 joint venture, Daicel-Hüls Ltd.—now Daicel-Evonik—in Osaka, Japan, for the manufacture of polyamide 12 and its sale under the name DAIAMID in East Asia.
1977:
Start of plant-scale trials for production of polyamide 12 elastomers. These will be marketed in the following years under the name VESTAMID® E.
2000:
Following construction of a pilot plant, a commercial plant is commissioned for continuous production of polyamide 12. The process was developed by Evonik (former Hüls) in 1993.
2008:
At the FAKUMA trade show in Friedrichshafen, Evonik unveils VESTAMID® HTplus, a high-temperature-stable semicrystalline material based on polyphthalamide, to the general public
2009:
With VESTAMID® Terra, Evonik launches polyamides of biogenic origin for the first time on the market.
激光平台-大数据-云平台-品质保证-重构激光
扫一扫在手机上阅读本文章