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Sulfur Silanes SCA-S69X

Chemical Name 

Bis[3-(triethoxysilyl)propyl]tetrasulfide

 

CAS No 

40372-72-3

 

EINECS:

254-896-5

 

Molecular Structure

 

 

SCA-S69X

Molecular Formula

C18H42O6S4Si2

 

Molecular Weight

538.94

 

Equivalents

Product

Supplier

Silquest® A-1289

Momentive (formerly OSi Specialties)

Z-6940

Dow Corning

Si-69

Evonik (formerly Degussa)

KBE-846

Shin-Etsu

B2494

UCT (United Chemical Technologies, Inc)

 

Typical Properties:

Index

Value

Appearance

Yellowy, transparent liquid

Sulfur Content, %

≥ 22

Specific Gravity (ρ20), g/cm3

1.069

Refractive Index( )

1.493

Flash Point, ℃

100

 

Abstract

SCA-S69X is a sulfur-containing organofunctional silane used in the rubber industry in combination with fillers that carry silanol groups.

 

Applications and Performance

SCA-S69X reacts with fillers containing silanol groups during mixing and with the polymer during the vulcanization process under formation of covalent chemical bonds. This imparts better tensile strength, higher module, reduced compression set, increased abrasion resistance and optimized dynamic properties. SCA-S69X is used in many applications where white fillers containing silanol groups are involved and optimum technical properties are required.
1. Tires: An excellent reinforcing agent in tires to reduce heat built-up, reduce rolling resistance and improve the tires´ wet grip. 
2. Shoe Soles: Generally applicable silane for improving abrasion resistance of sole compounds containing precipitated silica.
3. Mechanical Rubber Goods: General use silane for achieving good dynamic properties, low compression set and high abrasion resistance in mixtures containing white fillers.
4. Adhesives and sealants: An excellent adhesion promoter to glass, aluminum, steel and other inorganic surface in polysulfide, nitrile and other rubber adhesives, sealants and coatings.

 

Packing

The regular packing of this product is 25kg plastic pail, 200L steel drums and 1000L immediate bulk container.

PACKING

Storage and Shelf Life

Should be stored in dry, cool, ventilated room; keep away from water, moisture, high temperature and fire. This product has a shelf life of at least 12 months if stored in tightly closed original container at room temperature. 

If this product is kept beyond the shelf life recommend on the product label, it is not necessarily unusable, but a quality control should be performed on the properties relevant to the application.

 

产品说明书TDS(Technical Date Sheet)下载附件

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