Anna Eriksson

Technical Manager

Nynas

Personal Biography

Ms. Eriksson has a M.Sc. in Chemical Engineering with special focus on Polymer Technology from the Royal Institute of Technology in Stockholm, Sweden. She has been working at Nynas AB, Naphthenics division since 2006 in various positions covering product development, quality, customer support, research related activities and application specific education. 

She currently holds the position of Technical Manager for the Chemical Industry segment where she coordinates technical activities with the industry, customers, academia, test institutes and authorities.

Presentation Abstract

Naphthenic specialty oil for silicone sealants – An extensive study of mineral oil in silicone sealants formulation

Silicone is a polymer derived from minerals and synthetic feedstocks. It is utilized in many different end-applications whereof one is as a base for sealant materials. Sealants has the purpose to seal the gap between different construction parts, absorb mechanical impact, act as a moisture barrier and sometime as a sound dampening agent. To fulfil these purposes the sealant, must be designed to adhere to a variety of materials, have the right modulus (stiffness) combined with movement capability and resistance to degradation at exposure from UV, temperatures and chemicals.  

Some silicone sealant formulation contains mineral oil as a plasticizer and this paper show the performance of different types of oil in terms of compatibility, rheological properties and UV exposure resistance. 

An acetoxy cured silicone sealant frame formulation with a high loading of plasticizing oil has been evaluated with different types of oils; Naphthenic, Paraffinic and Biobased, of different viscosities, on several key performance properties like bleeding, adhesion and rheological behavior.

The results show that the relatively polar character of silicone polymers have a very good compatibility with Naphthenic oils which allow formulations with higher oil loading, enhances the adhesion and reduces the impact of temperature variation in a simulated end usage environment.

 

Co-author: Emma Öberg

Presentation Time

Breakout VI: Innovation in construction adhesives and sealants

Thursday, 12 September 2019, 17:00 - 17:30

FEICA Conference