VINYLTRIISOPROPOXYSILANE
Vinyltriisopropoxysilane
CAS: 18023-33-1
Molecular Formula: C11H24O3Si
VINYLTRIISOPROPOXYSILANE - Names and Identifiers
| Name | Vinyltriisopropoxysilane |
| Synonyms | NISTC18023331 Vinyltriisoprooxysilane VINYLTRISOPROPOXYSILANE VINYLTRIISOPROPOXYSILANE Vinyltriisopropoxysilane Triisopropoxy-vinylsilane Tri(isopropoxy)vinylsilane ethenyltris(1-methylethoxy)-silan ethenyltris(1-methylethoxy)-Silane ethenyl[tris(propan-2-yloxy)]silane Silane, ethenyltris(1-methylethoxy)- 1,2,2-tri(propan-2-yloxy)ethenylsilicon |
| CAS | 18023-33-1 |
| EINECS | 241-931-4 |
| InChI | InChI=1/C11H24O3Si/c1-8-15(12-9(2)3,13-10(4)5)14-11(6)7/h8-11H,1H2,2-7H3 |
VINYLTRIISOPROPOXYSILANE - Physico-chemical Properties
| Molecular Formula | C11H24O3Si |
| Molar Mass | 232.39 |
| Density | 0.866 |
| Boling Point | 180 °C |
| Flash Point | 51°C |
| Water Solubility | 130mg/L at 20℃ |
| Vapor Presure | 64Pa at 25℃ |
| Appearance | clear liquid |
| Specific Gravity | 0.866 |
| Color | Colorless to Almost colorless |
| Storage Condition | Room Temprature |
| Sensitive | 7: reacts slowly with moisture/water |
| Refractive Index | n20/D 1.399 |
VINYLTRIISOPROPOXYSILANE - Risk and Safety
| Risk Codes | 10 - Flammable |
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
VINYLTRIISOPROPOXYSILANE - Reference Information
| LogP | 3.8 at 20℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | a wear-resistant coating: its raw materials include: 20-30 parts of vinyl triisopropoxysilane, 3-5 parts of silica aerogel, 15-20 parts of trioxane, 5-9 parts of water, 3-7 parts of acetic anhydride, 10-15 parts of acetylcholine, 0.1-0.3 parts of polyoxyethylene sorbitan monoglyceride, 10-15 parts of crystalline silicon oxide, 7-13 parts of graphite powder; Among them, the porosity of silica aerogel is 75-79%, and the weight ratio of silica aerogel to vinyl triisopropoxysilane is 1 :( 5-7). A large amount of SiOH is formed after hydrolysis by adding vinyl triisopropoxy silane, and then dehydrated to form a highly cross-linked hard network similar to silica, which has good wear resistance and is directly connected by Si The existence of organic groups can significantly increase the flexibility of the coating, reduce stress cracking, and improve the bonding strength of the coating and the substrate, by adding silica aerogel and reasonably controlling its porosity, on the one hand, the viscosity of the coating can be increased, so that a thicker film layer can be obtained. On the other hand, because the added sol is an inorganic substance, the wear resistance of the film layer can be increased. Loss, through reasonable control of the ratio of silica aerogel and vinyl triisopropoxysilane within a certain range, can significantly increase the friction resistance of the paint, using trioxane as a solvent can not only increase the leveling and surface uniformity of the coating, but also form an intermixed layer with the surface of the substrate to increase the adhesion to the substrate. By adding water and mixing with trioxane, it can reduce the amount of trioxane and reduce the cost. Using acetic anhydride as the hydrolysis catalyst can better ensure that the pH of the entire paint system is weakly acidic, acetylcholine can effectively reduce the curing temperature of the coating, and can meet the use requirements of optical plastics with lower thermal deformation temperature. By controlling the ratio of acetic anhydride and acetylcholine, the curing time of the paint can be shortened, and the curing energy consumption and cost can be reduced. Improve the cross-linking degree of the coating, improve the scratch resistance of the coating, use polyoxyethylene dehydrated sorbitan monoglyceride as a leveling agent, and have the effect of lubricant. I reduce the friction coefficient of the coating, significantly increase the scratch resistance of the coating, crystalline silicon oxide and graphite powder have better friction resistance. By controlling the ratio of the two, the friction resistance of the paint is greatly increased. |
Last Update：2024-04-09 15:16:48
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