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Home > Products >  Vinyltrimethoxysilane ATPN-171

Vinyltrimethoxysilane ATPN-171

  • Min.Order: 500 Kilogram
  • Payment Terms: L/C,T/T
  • Product Details

Keywords

  • Vinyltrimethoxysilane
  • CAS No.2768-2-7
  • ATPN-171

Quick Details

  • ProName: Vinyltrimethoxysilane ATPN-171
  • Molecular Formula: C5H12O3Si
  • Application: Vinyltrimethoxysilane(ATPN-171) is use...
  • PackAge: 25Kg/drum
  • Port: TianJin,CHINA
  • ProductionCapacity: Metric Ton/Day
  • Purity: 98%
  • Transportation: by sea/by air
  • LimitNum: 500 Kilogram

Superiority

 

Advantages of Silane Crosslinking over Radiation or Peroxide Crosslinking

 

1. Low capital investment

2. Low operating (energy) costs

3. Higher productivity

4. Processing versatility

5. Thick, thin, or variable thicknesses possible

6. Complex shaps possible

7. Wilder processing latitude (control of premature crosslinking)

8. Useful with filled composites

9. Applicable to all polyethylene densities and copolymers.

Details

 

Introduction

 

Vinyltrimethoxysilane(ATPN-171) is used as a polymer modifier via grafting reactions. The resulting pendant trimethoxysilyl groups can function as moisture-activated crosslinking sites. The Silane grafted polymer is processed as a thermoplastic and crosslinking occurs after fabrication of the finished article upon exposure to moisture.

 

Typical Physical Properties

 

Chemical Name

Vinyltrimethoxysilane

Formula

C5H12O3Si

Molecular Weight

148.2

Color and Appearance

Colorless transparent liquid

Density 25/25℃

0.960-0.970

Boiling Point

122【760mmHg】

Refractive Index

1.3905 +/- 0.0005【25℃】

Flash Point

28

CAS No.

2768-2-7

EINECS No.

220-449-8

Purity

Min 98.0%

 

Application

 

1.Polymer Modification

ATPN-171 is used to modify polyethylene and other polymers by grafting its vinyl group to the polymer backbone using a radical initiator, such as peroxide. This provides a polymer with pendant trimethoxysilyl groups that may be used as moisture-activated crosslinking sites via hydrolysis of the alkoxy groups followed by condensation of the resulting silanols.

2.Crosslinking of Silane-Grafted Polymers.

The reaction of Silane-grafted polyethylene to form a crosslinked or vulcanized polyethylene uses water to form the crosslinks. This technology is widely used around the world for commercial applications in wire and cable insulation, tubing, and other similar uses.

The basic reaction sequence is as follows: polyethylene is reacted (grafted) with vinyltrimethoxysilane, using a peroxide initiator, in an extruder. The grafted polyethylene is then formed into a finished product, such as cable jacketing, wire insulation, or pipe. The forming step is usually done by a second extrusion, during which a catalyst for the moisture-cure step is added. Finally, the formed article is exposed to moisture or hot water to cause hydrolysis of the Silane and condensation to form crosslinks via Si-O-Si bond formation.

 

Advantages of Silane Crosslinking over Radiation or Peroxide Crosslinking

 

1. Low capital investment

2. Low operating (energy) costs

3. Higher productivity

4. Processing versatility

5. Thick, thin, or variable thicknesses possible

6. Complex shaps possible

7. Wilder processing latitude (control of premature crosslinking)

8. Useful with filled composites

9. Applicable to all polyethylene densities and copolymers.

 

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