Overview
SN-238 is a versatile mercaptan-modified polychloroprene rubber characterized by medium rate of crystallization. Compounds formulated with SN-238 demonstrate robust resistance to oil, chemicals, ozone, aging, sunlight, fire, and possess commendable electrical properties.
Order(MOQ) :
Flexible MOQ to suit your needsPayment :
Flexible payment optionsColor :
White or light grey chipsShipping Port :
Shipping to major ports globallyLead Time :
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Tailored solutions for your projectsSafety :
International safety compliant with detailed MSDS/SDSGeneral properties
Chemical Name: 2-CHLORO-1,3-BUTADIENE POLYMERS
Grade：SN-238
CAS NO.: 9010-98-4
Molecular formula: (C4H5Cl)n
Technical Data:
|
Items |
Index |
|
Appearance |
White or light grey chips |
|
Molecular Weight |
100,000～600,000 |
|
Density |
1.23 |
|
Softening Temperature (℃) |
80 |
|
Tg(℃) |
-38～-40 |
|
Specific Heat (KJ/kg•℃) |
2.18 |
|
Volume Resistance (Ω•cm) |
109 ～1012 |
|
Crystallization Rate |
Medium |
|
Mooney Viscosity ML(1+4) 100℃ |
90-110 |
|
Mooney Scorch MS t5 (min) |
≥12 |
|
Module at 500% Elongation（MPa） |
4-8 |
|
Tensile Strength（MPa） |
≥13 |
|
Ultimate Elongation（%） |
≥650 |
|
Volatiles(wt.%) |
≤0.8 |
|
Ash(wt.%) |
≤1.0 |
Applications:
1. The primary use of SN-238 lies in its application for heavily filled composites or in modifying the viscosity of adhesive formulations. It is commonly extruded in hose forms and is especially suited for the production of more rigid wire and cable sheaths.
2. SN-238 is utilized in the formulation of adhesives, notably in the creation of adhesive plasters.
Package:
Packed in 25kg kraft-plastic bag.
Storage:
Keep the item in a cool, well-ventilated area, ensuring it is shielded from direct sunlight. It is advisable to maintain a temperature below 25℃.
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Overview SN-238 is a versatile mercaptan-modified polychloroprene rubber characterized by medium rate of crystallization. Compounds formulated with SN-238 demonstrate robust resistance to oil, chemicals, ozone, aging, sunlight, fire, and possess commendable electrical properties.
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