A kind of preparation method of polyimide thick plate
A polyimide thick plate, polyimide technology, used in chemical instruments and methods, synthetic resin layered products, coatings, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] A kind of preparation method of polyimide thick plate provided by the present embodiment comprises the following steps:
[0022] Step 1. To prepare a thermosetting polyimide film, first put the diamine into the reaction kettle, dissolve it with a polar solvent, then put the modified nano powder, and finally add the dianhydride into the reaction kettle in batches, stir, and finally Add a polar solvent to adjust and control the viscosity of the final reaction product to 90000±5000 cP, and then defoam and cast a film to obtain a thermosetting polyimide film; the modified nano-powder includes 20 parts by weight of silicon tetrafluoride , 10 parts of aluminum oxide, 30 parts of silicon oxide, 1 part of titanium oxide, 0.1 part of hafnium oxide;
[0023] Step 2, coating thermoplastic polyimide, coating one deck thermoplastic polyimide on the thermosetting polyimide film obtained above, coating thickness is at 3-7 micron, concrete step is to pass dianhydride and dihydrogen Th...
Embodiment 2
[0036] A kind of preparation method of polyimide thick plate provided by the present embodiment comprises the following steps:
[0037] Step 1. To prepare a thermosetting polyimide film, first put the diamine into the reaction kettle, dissolve it with a polar solvent, then put the modified nano powder, and finally add the dianhydride into the reaction kettle in batches, stir, and finally Add a polar solvent to adjust and control the viscosity of the final reaction product to 90000±5000 cP, and then defoam and cast a film to obtain a thermosetting polyimide film; the modified nano-powder includes 30 parts by weight of silicon tetrafluoride , 15 parts of aluminum oxide, 40 parts of silicon oxide, 5 parts of titanium oxide, 0.3 part of hafnium oxide;
[0038] Step 2, coating thermoplastic polyimide, coating one deck thermoplastic polyimide on the thermosetting polyimide film obtained above, coating thickness is at 3-7 micron, concrete step is to pass dianhydride and dihydrogen T...
Embodiment 3
[0041] A kind of preparation method of polyimide thick plate provided by the present embodiment comprises the following steps:
[0042] Step 1. To prepare a thermosetting polyimide film, first put the diamine into the reaction kettle, dissolve it with a polar solvent, then put the modified nano powder, and finally add the dianhydride into the reaction kettle in batches, stir, and finally Add a polar solvent to adjust and control the viscosity of the final reaction product to 90,000±5,000 cP, and then defoam and cast a film to obtain a thermosetting polyimide film; the modified nano-powder includes 25 parts by weight of silicon tetrafluoride , 12 parts of alumina, 35 parts of silicon oxide, 3 parts of titanium oxide, 0.2 parts of hafnium oxide;
[0043] Step 2, coating thermoplastic polyimide, coating one deck thermoplastic polyimide on the thermosetting polyimide film obtained above, coating thickness is at 3-7 micron, concrete step is to pass dianhydride and dihydrogen The p...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More