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Home > Encyclopedia > Bis[3-(triethoxysilyl)propyl]tetrasulfide

Bis[3-(triethoxysilyl)propyl]tetrasulfide

Bis[3-(triethoxysilyl)propyl]tetrasulfide structure
  • CAS No:

    40372-72-3

  • Formula:

    C18H42O6S4Si2

  • Synonyms:

    TESPT;A-1289;CouplingagentG-407;Bis[3-(triethoxysily;SilanecouplerKH-858;Si-69Silanecouplingagent;3-triethoxy-silylpropyl-tetrasulfane;Bis(triethoxysilylpropyl)tetrasulfide;Bis(triethoxysililpropyl)tetrasulfane;BIS(TRIETHOXYSILYLPROPYL)TETRASULPHANE

  • China Export:

    From 2018.11 to 2019.11, total export volume of Bis[3-(triethoxysilyl)propyl]tetrasulfide from China was 126,709,447KG while total export value was $729,522,172. The biggest proportion of exporting volume in the last 12 months was 10.32% in 2018.11.

  • Categories:

    Chemical Reagents  >  Silane Reagent

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Description

Yellowish clear liquid

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Basic Attributes

  • 40372-72-3

  • C18H42O6S4Si2

  • 538.95

  • 538.140259

  • 157

  • 8.04

  • 254-896-5

  • VTHOKNTVYKTUPI-UHFFFAOYSA-N

  • 10

  • 0

  • 23

Characteristics

  • DryPowder; Liquid; OtherSolid; PelletsLargeCrystals, Liquid

  • 1.1±0.1 g/cm3

  • 250 °C

  • 91°C

  • 1.504

  • Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.

Safety Information

  • 2931900090

  • 1

  • 23-24/25

  • Xi

  • P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

  • H315

Usage

When used in rubber compounds, it produces these effects:
Coupling agent for non-black pigments;
Cure equilibrium for reversion resistance;
Curing agent for good heat aging.
Coupling Agent - With as little as 0.5 to 1.0 phr with clay fillers and 1.0 to 4.0 phr for silica pigments, BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE couples the non-black pigment and elastomers resulting in increases in modulus and increase in abrasion resistance.
Cure Equilibrium - BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE has four sulfur atoms positioned in the center. At cure temperatures, these participate with sulfur in producing polysulfidic crosslinks. The BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE replaces crosslinks broken during cure, resulting in reversion resistant, and with proper compounding, reversion free compounds. This is known as equilibrium cure. The dynamic flex characteristics, E.G., heat generation and crack growth, are dramatically improved.
Curing Agent - Removing all sulfur from the compound for NR, SBR, NBR and replacing it with BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE and certain thiuram accelerators, produces compounds with excellent heat aging characteristics in addition to the coupling effects. BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE is a silane coupling agent that has crosslinking and accelerator activity in rubber compounds. Area of rubber industry where they would be beneficial
Footwear - Abrasion resistance | Cutting and chunking resistance | Flex life improvement
Rolls - Abrasion resistance | Aging resistance | Processing | Set reduction (better load bearing) | Reduced water swell | Lower hysteresis
Mechanical Molded Goods - Increased modulus | Better heat aging | Compression set reduction | Dynamic property improvement | Reduced swell to polar liquids | Filler substitution (non-black for black)
Hose - Improved abrasion on cover | Better heat aging | Increased modulus | Lower compression set | Improved adhesion to reinforcing elements
Solid Tires - Improved abrasion | Lower hysteresis | Higher modulus | Improved processing | Possibly better adhesion
Tires - Treads for abrasion, hot tear | Carcass for adhesion and/or filler substitution | Breaker (belt) stocks for adhesion
Belts Flat Belts - Increased abrasion | Improved reversion resistance | Reduced cost with clay substitution for black | Improved cord adhesion | Increased flex life and modulus
V Belts - Increased modulus | Improved abrasion | Longer flex life | Improved adhesion to reinforcing elements

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China Bis[3-(triethoxysilyl)propyl]tetrasulfide Export Data

Data referenced from General Administration of Customs,P.R.China

2018.11-2019.11 China - America  Bis[3-(triethoxysilyl)propyl]tetrasulfide Export Data

From 2018.11 to 2019.11, total export volume of Bis[3-(triethoxysilyl)propyl]tetrasulfide from China to America was 14,649,671KG while total export value was $98,872,243. The biggest proportion of exporting volume in the last 12 months was 14.98% in 2018.11.

2018.11-2019.11 China Bis[3-(triethoxysilyl)propyl]tetrasulfide Export Data

From 2018.11 to 2019.11, total export volume of Bis[3-(triethoxysilyl)propyl]tetrasulfide from China was 126,709,447KG while total export value was $729,522,172. The biggest proportion of exporting volume in the last 12 months was 10.32% in 2018.11.

2018.11-2019.11 TOP10 Purchasing Countries' Export Data of Chinese Bis[3-(triethoxysilyl)propyl]tetrasulfide

From 2018.11 to 2019.11, China has exported Bis[3-(triethoxysilyl)propyl]tetrasulfide to 89 countries in total. Country ranks by import volume from high to low is India, America, Korea, Japan, Netherlands, Germany, Ukraine, Taiwan, Canada, United Arab Emirates. The highest export volume was China to India, accounting for 6.69% of the total volume of China.

Check Export Data for More Purchasing Countries

Purchasing Country Export Volume(KG) Export Percentage Export Value($)

India

16,541,389

6.69%

94,637,251

America

14,649,671

5.92%

98,872,243

Korea

14,131,942

5.72%

63,846,300

Japan

13,832,897

5.59%

76,424,670

Netherlands

12,974,670

5.25%

68,938,252

Germany

6,974,514

2.82%

48,746,769

Ukraine

4,852,561

1.96%

1,802,687

Taiwan

4,113,261

1.66%

25,580,537

Canada

3,454,804

1.40%

29,934,800

United Arab Emirates

3,202,710

1.30%

27,437,929

Belgium

3,057,427

1.24%

19,497,664

Brazil

2,299,220

0.93%

10,897,516

Thailand

2,275,722

0.92%

16,544,647

Malaysia

2,171,246

0.88%

12,939,259

Italy

1,993,305

0.81%

12,183,469

Vietnam

1,906,077

0.77%

10,935,269

Indonesia

1,816,243

0.73%

8,851,442

Turkey

1,590,095

0.64%

8,776,401

Mexico

1,554,697

0.63%

9,550,676

Spain

1,413,342

0.57%

6,891,138

Russia

1,335,886

0.54%

5,296,722

United Kingdom

1,230,607

0.50%

15,726,215

Latvia

1,155,688

0.47%

5,722,456

Australia

840,946

0.34%

3,341,367

Iran

775,480

0.31%

3,981,088

Singapore

750,381

0.30%

5,612,775

Israel

726,070

0.29%

3,971,073

Hongkong

590,415

0.24%

4,095,988

France

547,304

0.22%

5,296,959

Colombia

545,390

0.22%

3,387,625

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