Preparation method of low-density composite material wave-absorbing plate
A composite material and wave absorbing board technology, which is applied in chemical instruments and methods, synthetic resin layered products, coatings, etc., can solve the problem that it is difficult to meet the performance requirements of new devices and electromagnetic protection environments, and there is no nickel-plated carbon nanotube plating. Nickel method description, poor mechanical properties of materials and other problems, to achieve the effect of reducing density, good absorbing performance, and improving absorbing performance
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] A method for preparing a low-density composite wave-absorbing plate, comprising the following steps:
[0049] Step 1. Preparation of layer S 1
[0050] (1) Vinyl resin, curing agent, initiator and dispersant are mixed according to the mass ratio of 100:1:0.5:1 to obtain mixture A 1 ;
[0051] (2) Mix carbon nanotubes and nickel-coated carbon nanotubes at a ratio of 2:1 to obtain wave absorber B 1 ;
[0052] (3) Disperse B1 into mixtur...
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