To better understand the ramifications of high-viscosity mixing, let’s first review a much simpler case — that of turbulent flow in low-viscosity mixing.
During the pre-check of a new electronic control system, flight engineers of the U.S. Air Force Worldwide Airborne Command detected a cable-connector loosening problem.
Poly bd resins are used in adhesives, sealants, castable elastomers, caulks, membranes, foams, coatings, propellant binders, potting and encapsulating compounds, as well as other rubber-fabricated materials.
June 1, 2000
Poly bd resins, from Elf Atochem North America Inc., Philadelphia, are liquid, hydroxyl-terminated homopolymers of butadiene. The facile reaction of Poly bd resins with curing agents such as conventional di- and polyisocyanates provides an economical route to the preparation of general-purpose elastomers. The unique structure of these resins provides properties that surpass conventional polyether and polyester urethane systems, as well as conventional, general-purpose rubbers.
James C. Myers has received a 1999 American Society for Testing and Materials (ASTM) Award of Merit from ASTM Committee C24 on Building Seals and Sealants.
A leading contract manufacturer of electronic control, display and sensor products has reduced labor and material costs through the use of an innovative potting compound-dispensing system.
We initiated a program to evaluate the release performance of today’s emerging developmental ultraviolet pressure sensitive adhesive (UV-PSA) products against representative silicone-release coating systems available from Rhodia Inc.
This article investigates the effect on adhesive performance of blending a fully hydrogenated hydrocarbon resin with different grades and amounts of pure monomer aromatic hydrocarbon resins.