离岸价格
获取最新报价1 ~ 50 / Kilogram ( Negotiable )
|Minimum Order
位置:
CHINA
最小订单价格:
最小订单:
200 Kilogram
包装细节:
200kg/steel drum
交货时间:
30days
供应能力:
5000 Metric Ton per Year
付款方式:
T/T, L/C
联系人 elvis-couplingagent
jingui mansion,no.387,gudun road,hangzhou, Hangzhou, Zhejiang
Silane coupling Agent KH***1
Chemical name:
Vinyltrimethoxysiane
Synonyms:(Trimethoxysilyl)ethylene;
Ethenyltrimethoxysilane; Trimethoxy(vinyl)silane
Molecular Formula:
C5H*2O3Si
Molecular
Weight:**8.*3
CAS
No.:********7
Equivalents:
Momentive Silquest A***1
Dow Corning Z****0/SZ
***0
ShinEtsu KBM****3
EVONIK Degussa Dynasylan
VTMO
Wacker GENIOSIL XL *0
Chisso Sila-Ace S**0
Introduction:
KH***1 silane, vinyltrimethoxysiane, 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:
| Appearance | Colorless transparent liquid |
| Boiling Point<**0mmHg> | **2 oC |
| Flash Point | *8 oC |
| Density<*5oC> | 0.****0.**0g/cm3 |
| Refractive Index<*5 oC > | 1.***5+0.***5 |
| Min. Purity | *8.0% |
Applications:
1. Polymer Modification: KH***1 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 vinyltimethoxysilane, 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.
Package & Storage:
1. Package: **0L/drum or to order
2. Storage: kept in cool, dry & ventilated place, far away from water, moisture & kindling materials.
