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SN231

Addtime:2013-2-18

SURPREN 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

l  Good properties of physical mechanics and plastication

l  Superior in processability and can be mixed without mastication, the surface of sheet is flat and smooth and non-stick to the mill rolls;

l  Can be used in the form of a blend with many types of chloroprene rubber, has very lower compression set and excellent elasticity;

l  Has the same processability as Dupont WM-1 of the United States;

l  Good resistance to oil, chemical, sunlight and abrasion, good flame retardant;

l  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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