Foam plastic "a little bit", hidden nanotechnology to help you solve

Nanotechnology is the creation and use of materials, devices and systems through the manipulation of nanoscale materials. Recently, researchers at the National Institute of Standards and Technology (NIST) have developed a uniform multi-walled carbon nanotube based. Fire retardant coatings reduce the flammability of commonly used foam interiors. A nanocarbon material refers to a carbon material having a dimension of at least one dimension of less than 100 nanometers. Nano-carbon materials mainly include four types: nano-carbon spheres, carbon nanotubes, graphene and carbyne. Among them, carbon nanotubes and graphene are hot research topics in recent years due to their excellent properties. The combustibility of the carbon nanotube coated polyurethane foam was reduced by 35% compared to the untreated foam.
The elastic modulus of carbon nanotubes is substantially the same as that of diamond. The strength of carbon nanotubes is about 200 times higher than that of other fibers, and can withstand pressure of about 1 million atmospheres without breaking. Carbon nanotubes exhibit good electrical conductivity. In a certain direction, the conductivity is up to 10,000 times that of copper. The thermal conductivity of carbon nanotubes is higher than that of natural diamond and graphite atoms.
The researchers uniformly distributed and attached the modified carbon nanotubes to the upper and lower surfaces of the polymer layer. The resulting coating takes full advantage of the rapid heat dissipation of the carbon nanotubes and achieves greater ignition and combustion resistance than the brominated flame retardants commonly used for soft decoration.

Jiuzhi Plastics Network


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In granite mines, only injection-molded and rubber-injected diamond beaded ropes with or without springs can be used. Diamond beads can be sintered or electroplated, but sintered is mainly used. Generally, there are 32-40 diamond beads per meter. It is suitable for secondary cutting at the initial stage of mining and any angle, but not for block shaping. The largest cutting side reaches 20-500㎡, rarely 300-450㎡, the average production capacity is 1.5㎡/hour-8㎡/hour, the life of diamond beaded rope is 2.5㎡/meter-12㎡/meter on average, diamond The linear speed of the beaded rope is 16-26m/s.


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