Nyheter och event

  1. Produkter
  2. Nyheter och event
  3. Referensobjekt
  4. Knowledge tank
  5. Vårt erbjudande
  6. Säkerhet
  7. Vår industri
Bitumen för Vägbeläggning

2017-04-12 11:52

Understanding performance differences

Knowledge on bitumen chemistry and structures is of fundamental importance to understand performance differences of asphalt materials.

Recently, Nynas bitumen research team has published an article entitled “Structural and Chemical Analysis of Bitumen Using Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)” in Fuel, a leading journal for publishing primary research work in this field.

It has been shown that the structures formed on the bitumen surface are closely related to the wax content and that these structures, as well as the surface in general, are enriched in wax-related compounds. For the wax-free bitumen, the surface is characterized by a homogeneous distribution without chemical variations or phase structures and by a stronger signal intensity from aromatic compounds. When adding wax to the wax-free bitumen, extensive wax segregation occurs, but differently from the natural waxy bitumen, no bee structures are observed. Furthermore, fracture surfaces of all the wax-containing samples reveal circular structures, which are distinctly different from those observed on the original surfaces. The obtained chemical knowledge on bitumen surfaces and phase structures is of fundamental importance to understand performance differences of this type of materials.

This research work was carried out in collaboration with SP Technical Research Institute of Sweden.

Read full paper via the web-link:
 http://www.sciencedirect.com/science/article/pii/S0016236117302429

Läs mer

Nynas avslutar rekonstruktionen framgångsrikt

Södertörns tingsrätt beslutade idag att Nynas företagsrekonstruktion är slutförd efter ett borgenärsmöte där det tidigare inlämnade ackordsförslaget godkändes.

Läs mer om Nynas avslutar rekonstruktionen framgångsrikt

Come and join our webinar!

Nynas process oil properties in chemical applications.

Läs mer om Come and join our webinar!

Welcome to our virtual booth at GCC Power 2020 E-conference

We would like you to join us in our virtual booth where some of the world's leading experts on transformer oil will share valuable insights. The dates are November 25-26 and the venue is GCC Power 2020 E-conference.

Läs mer om Welcome to our virtual booth at GCC Power 2020 E-conference