Rubber microwave absorbing material is a kind of material processed with rubber as the substrate that can absorb microwave energy and convert it into other forms of energy such as heat energy, with good microwave absorption performance and mechanical properties, and is widely used in electromagnetic shielding, radar stealth, communication equipment and other fields. The combination of neoprene and recycled rubber to produce microwave absorbing materials can not only ensure the performance of use, but also effectively reduce production costs.
1. Advantages of using neoprene for rubber microwave absorbing materials
Neoprene is obtained by emulsion polymerization of chloroprene, with high molecular regularity, easy crystallization, good physical and mechanical properties such as tensile strength, elongation at break, resilience, tear strength, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, and chemical resistance, which can give the material good microwave absorption performance and maintain stable performance in high temperature, low temperature and humid environment; It has a certain dielectric loss capacity and can effectively absorb high-frequency electromagnetic waves.
2. Advantages of using recycled rubber for rubber microwave absorbing materials
Recycled rubber is waste rubber through physical and chemical processes such as crushing, heating, mechanical treatment, etc., so that it can be re-vulcanized from an elastic state into plastic and viscous rubber that can be re-vulcanized, the price is much lower than that of original rubber, and it can effectively reduce the cost of raw materials for the production of microwave absorbing materialsE4LYY99. It is easier to flow after the molecular chain of reclaimed rubber is broken, and has better dispersion when blended with absorbers (such as carbon nanotubes and ferrites), which can prepare absorber coatings with uniform thickness or complex curved surface structures. It has good plasticity and is easy to mix with other raw rubber and compounding agents, which can save man-hours and reduce power consumption in the mixing process.
3. Neoprene/reclaimed rubber is used to produce microwave absorbing material vulcanization formula
100 parts of neoprene, 100 parts of recycled rubber, 5 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant 4010, 100 parts of carbon black N330, 4 parts of magnesium oxide, 10 parts of engine oil, 12 parts of dibutyl phthalate, 1 part of accelerator DM, 1 part of sulfur; Total 335 copies.
When using neoprene/reclaimed rubber and glue to prepare microwave absorbing materials, reasonable design of the formula and appropriate adjustment of the production process can further reduce the production cost, improve the durability of the microwave absorbing materials, and meet the needs of more industries.
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