Microcapsule with infrared and radar stealth functions, and preparation method and application thereof
A radar stealth and microcapsule technology, applied in the field of material engineering, can solve the problems of complex preparation process and single final product forming method, and achieve the effects of reduced preparation process, good electromagnetic wave absorption performance, and convenient use.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] A microcapsule with both infrared and radar stealth, comprising the following raw materials in parts by weight: 8-10 parts of polyacrylonitrile, polyurethane or a mixture of both, 27 parts of dimethylformamide, 3-6 parts of paraffin, 0.5-2.5 Parts of electromagnetic wave absorber, 0.1 part of hydroxycellulose, 10 parts of deionized water.
[0037] The above-mentioned electromagnetic wave absorber is one or more of nanoscale few-layer graphene oxide, ferric oxide, and ferric oxide intercalated graphene.
[0038] A method for preparing microcapsules with both infrared and radar stealth, the specific steps are as follows:
[0039] (1) Dissolve 10 g of polyurethane into 15 g of dimethylformamide solvent to prepare solution S1.
[0040] (2) Add 3 g of paraffin, 0.5 g of few-layer graphene oxide, 2 g of ferric oxide, and 0.1 g of hydroxycellulose into 10 g of dimethylformamide solvent, stir and emulsify fully at 50° C. to prepare solution S2.
[0041] (3) Add 5 mL of S2 sol...
Embodiment 2
[0046] A method for preparing microcapsules with both infrared and radar stealth, the specific steps are as follows:
[0047] (1) Dissolve 8g of polyacrylonitrile into 15g of dimethylformamide solvent to prepare solution S1.
[0048] (2) 5 g of paraffin, 0.5 g of ferric oxide intercalated graphene oxide, and 0.1 g of hydroxycellulose were added to 10 g of dimethylformamide solvent, and fully stirred and emulsified at 60° C. to prepare solution S2.
[0049] (3) Add 5 mL of S2 solution into 5 mL of S1 solution, and stir thoroughly at 70° C. to obtain a mixed solution S3.
[0050] (4) Dissolve 2 g of dimethylformamide into 10 g of deionized water to prepare solution S4.
[0051] (5) Spray S3 into the S4 solution at 30° C. through a high-pressure, high-temperature sprayer at 80° C. to obtain microcapsule particles.
[0052] After testing, the microcapsule material prepared in this example has a phase change enthalpy as high as 102.1 J / g, and has ultra-low infrared transmittance ...
Embodiment 3
[0054] A method for preparing microcapsules with both infrared and radar stealth, the specific steps are as follows:
[0055] (1) Dissolve 10 g of polyurethane into 15 g of dimethylformamide solvent to prepare solution S1.
[0056] (2) Add 6 g of paraffin, 1 g of ferric oxide intercalated graphene oxide, and 0.1 g of hydroxycellulose into 10 g of dimethylformamide solvent, and fully stir and emulsify at 70° C. to prepare solution S2.
[0057] (3) Add 5 mL of S2 solution into 5 mL of S1 solution, and stir thoroughly at 70° C. to obtain a mixed solution S3.
[0058] (4) Dissolve 2 g of dimethylformamide into 10 g of deionized water to prepare solution S4.
[0059] (5) Spray S3 into the S4 solution at 30° C. through a high-pressure, high-temperature sprayer at 80° C. to obtain microcapsule particles.
[0060] After testing, the microcapsule material prepared in this example has a phase change enthalpy as high as 105.1 J / g, and has ultra-low infrared transmittance in the 3-15 μm...
PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| phase transition enthalpy | aaaaa | aaaaa |
| phase transition enthalpy | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More