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Silane Coupling Agent (RT-69)

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Basic Info

Model No.:  RT-69

Product Description

Model NO.: RT-69 Appearance: Liquid Classification: Chemical Additives Color: Colorless Silane Coupling Agent (RT-69)


Silane Coupling Agent (RT-69)

Chemical Name Bis [3-(triethoxysilyl) propyl] tetrasulfide
 
 Formula (C2H5O)3SiCH2CH2CH2-S4-CH2CH2CH2Si(OC2H5)3

Physical Properties A pale yellow clear liquid with light odor of ethyl alcohol and soluble easily in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.

Specifications  
Alcohol content 0.5%
γ2 Content 3.0%
Other impurity content 1.0%
Viscosity 25ºC (cps)  17.0
Sulfur Content 22% ± 1%
Volatility (100°C /10min.)  1.0%
Specific Gravity (25ºC) 1.080 ± 0.020
Refractive Index (25ºC) 1.480 ± 0.020
 
 γ2: γ-chloropropyltriethoxy silane.
 It mainly contains some silane impurities.  
 Application Range  
RT-69 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. It 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 processability of rubber products.
RT-69 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 RT-69 in polymers such as NR, IR, SBR, BR, NBR and EPDM.
Recommend dosage 1.0-4.0 PHR
 
 Package and storage  25 or 200, 1000 kg in plastic drum.  Sealed storing.  Shelf life: Longer than two years in normal storing conditions.


 

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