Evaluation of the use of processing aids in silicone elastomers and cellular silicones

Technical Report · Sun May 23 00:00:00 EDT 1982

DOI:https://doi.org/10.2172/6540195· OSTI ID:6540195

Cady, W E; Jessop, E S; McKinley, B M

We evaluated two processing aids, UCC's Y1587 and GE's SE4210, in GE's SE54, type 97, and type 60 silicone gums. We tested uncured L1668 reinforced gums, cured L3219 elastomers, and L3223 and L3260 cellular silicones. In the new type 97KVB and type 60VB silicone gums, Y1587 produces a softer cushion than SE4210. The type of processing aid has no significant effect on uncured L1668 and has no effect on the compression set of the higher density L3223. For lower density L3260 cushions, Y1587 produces a significantly lower compression set than SE4210. If compression set is not a big consideration, or if cushion density is high, the choice of a processing aid can be used to control cushion stiffness along with the amount of reinforcing SiO/sub 2/, vinyl content, and porosity. Y1587 is preferred for all silicone gums, and it is important that it be used in the 97KVB and 60KVB gums. 55 tables.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6540195
• Report Number(s): UCRL-53299; ON: DE83006503
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
COLLOIDS
CURING
DATA
DEFORMATION
DENSITY
DISPERSIONS
ELASTOMERS
EXPERIMENTAL DATA
FOAMS
GUMS
HARDNESS
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL DATA
PHYSICAL PROPERTIES
POLYMERS
POROUS MATERIALS
PROCESSING
PRODUCTION
SILICONES
SILOXANES
SWELLING
TENSILE PROPERTIES