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Crosile® 75

CAS Number
40372-72-3
EC Number
254-896-5
Chemical Name
Bis[3- (triethoxysilyl) propyl] tetrasulfide
Chemical Family
Silanes

Crosile®75 (Bis(3-triethoxysilylpropyl)disulfide) TESPD is a bifunction polysulfidic organosilane and has been widely in the rubber industry. Crosile®75 TESPD is used to improve the reinforcing capability of fillers with silanol group on the their surface,and also as an integral part of curing systems to improve cross-linking network properties. Compared to the Crosile®69 (Bis(3-triethoxysilylpropyl)tetrasulfide), Crosile®75 has a higher temperature stability and therefore allows higher mixing temperatures. Crosile®75 imparts greater tensile strength, higher module, reduced compression set, increased abrasion. resistance and optimized dynamic properties.

Properties

Physical Form
Liquid

Product families

Applications

Applications
  • Consumer Goods — Footwear
Automotive & Transportation — Automotive
  • Other Automotive Applications
  • Tires
Industrial — Chemical & Industrial Manufacturing
  • Other Industrial Applications

Product Families

Elastomers — Elastomer Additives
  • Surface Modifiers

Other characteristics

Brand
Crosile
End Uses
Tires
Synonyms

3,3′-Bis(triethoxysilylpropyl) tetrasulfide, 4,4,15,15-Tetraethoxy-3,16-dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, Bis(3-(ethoxysilyl)propyl)tetrasulfide, Bis(3-triethoxisilylpropyl)tetrasulfide, Bis(3-triethoxysilylpropyl)tetrasulfane, Bis(triethoxysilylpropyl)tetrasulfane, Bis[3-(triethoxysilyl)propyl] tetrasulfide, Bis[triethoxysilylpropyl] tetrasulfide, Bis[γ-(triethoxysilyl)propyl] tetrasulfide

Functions
Coupling Agent
Markets
  • Automotive & Transportation
  • Consumer Goods
  • Industrial
Packing

25 kg /drum, it loads 16 MT/ 20 FCL with pallet; 200 kg /drum, it loads 16 MT/20 FCL with pallet; 1060 kg in plastic drum, 21.2 MT/20 FCL with pallet.

Storage

Kept in a low temperature, dry and ventilated place, avoid direct sunlight.

Properties

Crosile®75 (Bis(3-triethoxysilylpropyl)disulfide) TESPD is a bifunction polysulfidic organosilane and has been widely in the rubber industry. Crosile®75 TESPD is used to improve the reinforcing capability of fillers with silanol group on the their surface,and also as an integral part of curing systems to improve cross-linking network properties.; Compared to the polysulfidic organosilane Crosile®69(Bis(3-triethoxysilylpropyl)tetrasulfide), Crosile®75 has a higher temperature stability and therefore allows higher mixing temperatures.; Crosile®75 imparts greater tensile strength, higher module, reduced compression set, increased abrasion resistance and optimized dynamic properties.

Shelf LIfe
One year in ventilating, cool and dry area.
Technology
Elastomers
ChemicalFormula
C18H42O6S4Si2
Equivalent Grade

Silquest@A-1589,Si75, Dowcoring Z-6920,BIS(TRIETHOXYSILYLPROPYL)DISULFIDE, Bis(3-triethoxysilylpropyl)disulfane, BIS[3-(TRIETHOXYSILYL)PROPYL]-DISULFIDE , Bis[3-(triethoxysilyl)propyl] persulfide, 3,3′-Bis-(triethoxysilylpropyl) disulfide, Bis[3-(triethoxysilyl)propyl] perdisulfide, Si266,Silane TESPD

Material Features
  • Good Abrasion Resistance
  • High Tensile Strength
  • Low Compression Set
  • Low Odor
Plastics and Elastomers End Uses
Tires
Plastics and Elastomers Functions
Coupling Agent

Technical data

Table 1 of 1

7 rows
CharacteristicValueUnit
Alcohol Contentmax. 0.5wt. %
γ2 Contentmax. 3.0wt. %
Other impurity Contentmax. 1.0wt. %
Viscosity (25°C)max. 14.0Cps
Sulfur Content15.0 ± 1.0wt. %
Specific Gravity (25°C)1.080 ± 0.020—
Refractive Index (25°C)1.480 ± 0.020—

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