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Coupling Agent

This product is almost applicable to all the thermoset plastics and thermoplastics, with good adhesion resistant and antistatic performance. It improves dispersibility of plastics and fillers. It can improve the melting fluidity of resins,efficiency and glossiness of products when it is used in the processing of the plastic.

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Silane coupling agent

1.Description of Silane coupling agent 

Chemical Name: Bis [3-(triethoxysilyl) propyl] tetrasulfide

Chemical Formula :(C2H5O)3SiCH2CH2CH2-S4-CH2CH2CH2Si(OC2H5)3

CAS NO: 40372-72-3


2.Specification of Silane coupling agent

Properties

Units

Target Values(Spec,Limits)

Alcohol content

%(wt)

≤0.5%

CLPTES Content

%(Wt)

≤3.0%

Other impurity content

%(Wt)

≤1.0%

Viscosity 25°C (cps)

Cps

≤14.0

Sulfur Content

%(wt)

22.5(21.7-23.3)

Average chain Length


3.70(3.55-3.85)

S2 content

%(rel.wt)

18.0(15.0-21.0)

S3 content

%(rel.wt)

30.0(27.0-33.0)

S4 content

%(rel.wt)

24.0(21.0-27.0)

S5 to S8 content

%(rel.wt)

27.0(24.0-30.0)

Volatility (100°C /10min.)


≤ 1.0%

Specific Gravity (25°C)


1.080 ± 0.020

Refractive Index (25°C)


1.480 ± 0.020

 

3.Application of Silane coupling agent

Silane coupling agent 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.

 

Cable _副本.jpg 

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