Polypropylene intra-autoclave alloy having carbon nanotubes, preparation method for the alloy, and applications thereof
A technology of carbon nanotubes and alloys in kettles, which is applied to the alloys in polypropylene kettles containing carbon nanotubes and its preparation and application, and can solve the problems of high performance of alloys in kettles that have not been reported.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0080] 1) Add 300g of liquid propylene into the reaction kettle, add 0.23mol cocatalyst triethylaluminum, 0.033mol methylaluminoxane and 1.0g carbon nanotube supported transition metal catalyst (triethylaluminum and catalyst The molar ratio of the transition metal element titanium is 600:1; the molar ratio of the cocatalyst methylaluminoxane to the transition metal element zirconium in the catalyst is 2000:1) and hydrogen 0.2g, the pressure is 3.1MPa, and the temperature is raised to 70°C. After reacting for 0.2 hours, 80.0 g of the intermediate product polymer was obtained, which was directly carried out to the next reaction.
[0081] 2) Empty the remaining propylene in the reaction kettle in the above step 1) and lower the temperature to 30°C, then feed a mixed gas of 20g of ethylene and 60g of propylene, and feed in 0.05g of hydrogen, the pressure is 1.0MPa, and the temperature is raised to 80°C, After reacting for 0.3 hours, 100.0 g of carbon nanotube / polypropylene alloy i...
Embodiment 2
[0105] 1) Under vacuum, fill 8.0g propylene monomer into the reaction kettle, add 100ml hexane, 3.0ml heptane solution containing 5.5mmol triethylaluminum, 0.01mol methylalumoxane and 0.1g carbon nanometer Tube-supported transition metal catalyst (the molar ratio of triethylaluminum and transition metal element titanium in carbon nanotube-supported transition metal catalyst is 150:1, and the transition metal element in methylaluminoxane and carbon nanotube-supported transition metal catalyst The mol ratio of zirconium is 2000: 1), the pressure in the kettle is constant at 0.7MPa, the reaction temperature is 70 DEG C, the polymerization reaction is 0.5 hour, stop feeding propylene monomer, obtain intermediate product 9.0g;
[0106] 2) Pass into the reaction kettle of step 1) 5.0g of mixed gas of ethylene and propylene (wherein 1.25g of ethylene, 3.75g of propylene), continue to react for 0.5 hours, the pressure in the kettle is constant at 0.5MPa, and the reaction temperature is...
Embodiment 3
[0118] 1) Put 250g of liquid propylene into the reaction kettle, add 0.16mol cocatalyst triethylaluminum, 0.066mol methylaluminoxane and 1.0g carbon nanotube supported transition metal catalyst (triethylaluminum and catalyst The molar ratio of the transition metal element titanium is 600:1; the molar ratio of methylaluminoxane to the transition metal element zirconium in the catalyst is 2000:1) and hydrogen 0.2g, the pressure is 3.0MPa, the temperature is raised to 70°C, and the reaction is 0.2 Hour, obtain intermediate product polymer 90.0g, carry out next step reaction directly.
[0119] 2) Vent the remaining propylene in the reaction kettle in the above step 1) and lower the temperature to 30°C, then pass in a mixture of 20g of ethylene and 60g of 1-butene, and pass in 0.05g of hydrogen, the pressure is 1.0MPa, and the temperature is raised to 80 ℃, reacted for 0.3 hours, and finally obtained 110.0 g of carbon nanotube / polypropylene alloy in the kettle.
[0120] The carbon...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| tensile strength at break | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More