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Foam plastic composite material with wave absorbing property and preparation method thereof

A technology of foam plastics and composite materials, which is applied in the field of composite plastics, can solve the problems of poor softness, easy deformation, and non-environmental protection of composite materials, and achieve the effect of avoiding air pollution

Inactive Publication Date: 2017-09-12
卢路平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the problems of poor softness, easy deformation and environmental protection of composite materials in the prior art

Method used

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  • Foam plastic composite material with wave absorbing property and preparation method thereof
  • Foam plastic composite material with wave absorbing property and preparation method thereof
  • Foam plastic composite material with wave absorbing property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example 1-4

[0030] According to the formulas of Examples 1-3 and Comparative Examples 1-2 listed in Table 1 below ("parts" in the table refer to weight fractions, the same below) polyether polyols and polyisocyanates are placed in a vacuum oven at 50°C Vacuum dry for 12 hours, remove moisture, put the wheat straw granules into a drying oven and dry at 80°C, when the moisture content of the wheat straw granules is 7% using a moisture content tester, stop drying, take out the wheat straw granules and put them in the oven. put into a pulverizer, pulverize to a particle size of 50 meshes, and obtain wheat straw powder; after incinerating the wheat straw into ashes, obtain wheat straw ash powder;

[0031] Pour the polyether polyol, montmorillonite, wheat straw powder and wheat straw ashes into a blender, and stir evenly, then add water, vibrate in an ultrasonic wave at 55°C for 2 hours, and obtain the first mixture;

[0032] Put the first mixture into a mixer, then add a catalyst and a foam st...

Embodiment 4-6

[0039] According to the formula of Examples 4-6 listed in the table below ("parts" in the table refer to weight fractions, the same below), put polyether polyol and polyisocyanate into a 60°C vacuum drying oven for 12h to remove moisture, The wheat straw granules are put into a drying oven and dried under the condition of 90° C., and when the moisture content of the wheat straw granules is measured by a moisture content tester to be 10%, the drying is stopped, and the wheat straw granules are taken out and put into a pulverizer, and pulverized to The particle size is 60 mesh, and the wheat straw powder is obtained, and the wheat straw ash powder is obtained after the wheat straw is incinerated into ashes;

[0040] Pour the polyether polyol, montmorillonite, wheat straw powder and wheat straw ashes into a blender, and stir evenly, then add water, vibrate in an ultrasonic wave at 60°C for 2.5 hours, and obtain the first mixture;

[0041] Put the first mixture into a mixer, then ...

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Abstract

The invention relates to a foam plastic composite material with wave absorbing property. The foam plastic composite material is prepared from the following raw materials of polyether polyol, polyisocyanate, a foam stabilizer, plant powder, a crosslinking agent, a catalyst, graphite, montmorillonite and the balance of water. The invention also relates to a preparation method of the foam plastic composite material with wave absorbing property. The foam plastic composite material has the advantages that by adding the graphite, the plant powder, the montmorillonite and the like, the wave absorbing property and the sticking degree can be greatly improved; the easiness in breaking is avoided; the thermoplastic property is strong, the anti-impact strength is good, and the environment-friendly effect is realized.

Description

technical field [0001] The invention belongs to the technical field of composite plastics, and relates to a foam plastic composite material with wave-absorbing properties and a manufacturing method thereof. Background technique [0002] In recent years, due to the deterioration of the electromagnetic wave environment, in order to conduct electronic simulation and other tests, it is urgent to build an echo-free anechoic chamber that is not interfered by electromagnetic waves. Electromagnetic performance measurement in an echo-free anechoic chamber can not only eliminate the interference of other electromagnetic waves, but also can To avoid the influence of the unfavorable factor of climate, the measurement work is carried out in a close to ideal electromagnetic environment, which ensures the accuracy and reliability of the measurement results. In addition, the measurement in the anechoic chamber can also prevent unauthorized observation and satellite reconnaissance, which is ...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L97/02C08L83/04C08K3/04C08K3/34C08G18/48C08J9/08C08G101/00
CPCC08L75/08C08G18/48C08G2101/00C08J9/04C08J9/08C08J2203/04C08J2203/18C08J2375/08C08L2201/02C08L2201/08C08L2203/14C08L2205/025C08L2205/035C08L97/02C08L83/04C08K3/04C08K3/346
Inventor 卢路平
Owner 卢路平
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