Carbon fiber heat preservation and sound absorption cotton and preparation method and application thereof

Abstract

The invention relates to carbon fiber heat preservation and sound absorption cotton and a preparation method and application thereof. The cotton is prepared from, by weight, 60-95 parts of carbon fiber and 5-40 parts of polyester fiber. The carbon fiber heat preservation and sound absorption cotton can effectively lower noise, the advantages that the carbon fiber has no melting point and is not burnt are sufficiently utilized, the physical property that the polyester fiber has a melting point is sufficiently utilized, the ratio of the cotton to the polyester fiber is adjusted, the cotton and the polyester fiber are organically combined, the carbon fiber heat preservation and sound absorption cotton is manufactured through a series of physical changing processes, and the carbon fiber heat preservation and sound absorption cotton is environmentally friendly, comfortable and good in heat preservation and sound absorption effects and is of great guiding significance in follow-up traffic noise abatement work.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a carbon fiber thermal insulation and sound-absorbing cotton and its preparation method and application. Background technique [0002] Car noise directly affects people's physical and mental health and the improvement of quality of life. Long-term exposure to noise can cause hearing loss and even induce some diseases. Tests have shown that: 80 decibels will reduce the driver's attention by 10%, and 20% at 90 decibels. To stay away from noise, all we can do is sound absorption and sound insulation. The sound-absorbing cotton can convert the medium and high-frequency noise vibration energy generated by the vibration of the car body into the kinetic energy of the fine denier fibers inside the sound-absorbing cotton, and convert it into heat energy and dissipate it to achieve the function of sound absorption and noise reduction. [0003] The existing product...

AI Technical Summary

Problems solved by technology

Due to the limited penetration of thermal radiation, the existing preparation methods limit the thickness of the finished thermal insulation and sound-absorbing cotton, and because the material has thermal insulation properties, the heat conduction is slow, and the power consumption during processing is large. At the same time, the production speed is also very fast. slow, low productivity