Silane Coupling agent Crosile75 Bis [3-(triethoxysilyl) propyl] disulfide

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.


  • Item NO.:

    Crosile®75
  • Payment:

    TT or LC
  • Chemical Name:

    Bis(3-triethoxysilylpropyl)disulfane
  • Chemical Formula:

    C18H42O6S4Si2
  • CAS No.:

    56706-10-6
  • EINECS No:

    260-350-7
  • Properties:

    Crosile®75 is a pale yellow clear liquid with light odor of ethyl alcohol and soluble easily in ethyl alcohol, acetone, benzene, toluene etc. It is unsoluble in water.


Silane Coupling agent Crosile75 Bis [3-(triethoxysilyl) propyl] disulfide


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.


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


Specifications

Properties

Units

Target Values

(Spec,Limits)

Alcohol content

%(wt)

≤0.5%

γ2 Content

%(wt)

≤3.0%

Other impurity content

%(wt)

≤1.0%

Viscosity 25°C (cps)

Cps

≤14.0

Sulfur Content

%(wt)

15.0 ± 1.0

Specific Gravity (25°C)


1.080 ± 0.020

Refractive Index (25°C)


1.480 ± 0.020


Application

Crosile®75 is a kind of multifunctional silane coupling agent that has been used successfully in the rubber industry. It is used to improve physical and mechanical properties of vulcanizates.

Crosile®75 is able to markedly improve tensile strength, tearing strength and abrasive resistance and reduce compression set of vulcanizates. In addition, it can reduce the viscosity and improve the process ability of rubber products.

Crosile®75 is especially suitable to improve the reinforcing properties of fillers that contain hydroxyl groups in all unsaturated polymers having double bonds or their blends.

Silica, talc powder, mica powder and clay can be used in combination with Crosile®75 in polymers such as NR, IR, SBR, BR, NBR and EPDM.  Recommend dosage 2.0-8.0PHR

Silane Coupling agent Crosile75 Bis [3-(triethoxysilyl) propyl] disulfide


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.


Shelf life:

One year in ventilating, cool and dry area.


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