A kind of preparation method of heat-insulating sound-insulating shock-absorbing fiber felt

Abstract

The invention discloses a preparation method of fiber felt achieving thermal insulation, sound insulation and shock absorption. The fiber felt achieving thermal insulation, sound insulation and shock absorption comprises an XPE layer, a cooling fin layer, a composite layer and damping sound insulation felt; the composite layer is processed and prepared from textile fragments, non-woven fabric fragments, a flame retardant, polyisoprene rubber, ethylene-vinyl acetate rubber, a coupling agent, polyester fibers, glass wool and asbestos fibers. The preparation method comprises the steps that 1, aluminum alloy cooling fins are machined through aluminum injection molding and mould pressing; 2, XPE layer coating is conducted; 3, the composite layer is prepared; 4, the composite layer and the damping sound insulation felt are bonded; 5, the four structural layers are composited into a whole through a moulding press. The product prepared through the method is small in weight, good in sound absorption, thermal insulation and shock absorption effect, low in cost, economical and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of automobile interior trim parts, in particular to a preparation method of a heat-insulating, sound-insulating and shock-absorbing fiber felt. Background technique [0002] With the rapid development of the world economy and the continuous improvement of people's living standards, the automobile industry has developed rapidly. People's requirements for automobiles are not only beautiful appearance, comfort and functionality of interior decoration, but also new requirements for environmental protection performance and noise resistance performance of vehicle interior decoration. However, at present, phenolic resin cotton is generally used as the material of automobile sound insulation pads and some interior parts. Due to the synthesis mechanism of phenolic resin cotton and its special properties, it contains harmful substances and pungent odors, and it has been placed in the interior of the car for a long tim...

AI Technical Summary

Problems solved by technology

However, at present, phenolic resin cotton is generally used as the material of automobile sound insulation pads and some interior parts. Due to the synthesis mechanism of phenolic resin cotton and its special properties, it contains harmful substances and pungent odors, and it has been placed in the interior of the car for a long time. It will bring some pollution to the environment inside the car, and at the same time, it will also cause certain harm to the human body.

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