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SiSiB® PC7970 Propyltriacetoxysilane
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CAS No. |
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EINECS No.: |
241-816-9 |
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Formula |
C9H16O6Si |
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Molecular Weight |
248.31 |
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Boiling Point |
236°C [760mmHg] |
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Flash Point |
81°C |
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Color and Appearance |
Colorless or yellowish clear liquid |
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Density 25/25°C |
1.112 |
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Refractive Index [20°C] |
1.43 |
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Active Content |
98.00% |
Application
SiSiB® PC7970 propyltriacetoxysilane, PTAS silane, is used as a raw material (crosslinker) for acetoxy crosslinking RTV-1 sealants.
Acetoxy silanes are more reactive than alkoxy silanes. Acetoxy silanes are frequently used as one-component mixtures to make RTV-1 silicone sealants. These mixtures have an excess of multi-functional acetoxy silane added to silanol-terminated PDMS, which results in a PDMS chain with acetoxy groups at the ends.
When this compound is exposed to moisture some acetoxy groups are hydrolyzed and self-condense or react with other acetoxy and rapid crosslinking takes place. Acetic acid formation is one of the driving forces of this reaction.
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324004 Raw materialsReport abuse
Saturday, July 15, 2023
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- 324004 - No.20 Huayin North Road, High-tech Industrial Park, Quzhou, Zhejiang,China
- 05708598517
324004 VehiclesReport abuse
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Silane coupling agent, also known as silane treatment agent and primer, is a kind of low molecular organic silicon compound with special structure. The speciality of silane coupling agent lies in the two types of reactive groups with different chemical properties contained in it....
Zhongtian East Fluorine Silicon Material Co., Ltd
- 324004 - No.20 Huayin North Road, High-tech Industrial Park, Quzhou, Zhejiang,China
- 05708598517