Chloroprene rubber SN231
Blue Star TM SN231
Introduction
Chloroprene rubber SN231 is a general purpose, it is obtained by mercaptan modified and Chloroprene
monomer by emulsion polymerization with medium rate of crystallization, for using a Nairit recipe and
process technology. It can be seen as an equivalent to Dupont WM-1 of the United States.
Characteristics Good properties of physical mechanics and plastication
Superior in processability and can be mixed without mastication, the surface of sheet is flat and
smooth and non-stick to the mill rolls;
Can be used in the form of a blend with many types of chloroprene rubber, has very lower
compression set and excellent elasticity;
Has the same processability as Dupont WM-1 of the United States;
Good resistance to oil, chemical, sunlight and abrasion, good flame retardant;
Good storage stability
Appearance
White or grey chips, with talcum as a release agent, no mechanical impurities.
Typical property
Item SN231
Mooney viscosity ML (1+4) 100 ºC 34 - 41
Mooney scorch, MSt5 (min) ≥ 12
Module at 500% elongation, MPa 2 - 5
Tensile strength, MPa ≥ 13
Ultimate elongation, % ≥ 700
Mass fraction of volatiles, wt. % ≤ 0.8
Mass fraction of ash, wt. % ≤ 1.0
Comparable grades
DuPont, American: WM-1
Denka, Japan: M-30
Lanxess, Germany: 211
Application
SN231, which is mainly suitable for production goods of highly loading, is used in the form of a blend with
the grades of adhesive to preparing adhesive cements. Production things of extruded bars, a variety of
hoses, tapes, rubber seals, as well as hard goods and wire and cable jackets, etc.
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