High temperature-resistant regenerated polyester fiber laminated sheet material for engine compartment and preparation method thereof

Abstract

The invention discloses a high temperature-resistant regenerated polyester fiber laminated sheet material for an engine compartment. The sheet material comprises a regenerated polyester fiber lamella layer and an aluminum foil layer, wherein the regenerated polyester fiber lamella layer comprises at least three fibrous layers, the densities of the three fibrous layers successively decrease along the thickness direction of a lamella, the three fibrous layers are a compact layer, a semi-compact layer and a fluffy layer, respectively, and the aluminum foil layer is arranged on the surface of the compact layer. The preparation method comprises the following steps: preparing the regenerated polyester fiber lamella; coating the surface of the compact layer of the regenerated polyester fiber lamella with an aluminum foil; and heating and laminating the surface of the aluminum foil to allow the regenerated polyester fiber lamella to be firmly bonded with the aluminum foil so as to prepare the high temperature-resistant regenerated polyester fiber laminated sheet material for the engine compartment. Thus, polyester cellucotton is cyclically utilized, environmental pollution is reduced, and resources and energy are saved; and noise in an automobile can be reduced, and comfortableness in driving of the automobile can be improved.

Description

technical field [0001] The invention relates to the field of sound insulation and noise reduction in an engine compartment, in particular to a high temperature-resistant regenerated polyester fiber laminated sheet for an engine compartment and a preparation method thereof. Background technique [0002] my country is a big country of automobile manufacturing and consumption. my country's automobile scrapping standards have been revised many times. In May 2013, the Ministry of Commerce issued the "Regulations on Compulsory Scrapping Standards for Motor Vehicles", which made relevant regulations on the scrapping standards and years of various motor vehicles. defined. Generally speaking, the period of scrapping a car is 10-15 years, which is basically similar to the situation abroad. According to the experience of mature foreign markets, scrapped cars account for 5-7% of the total number of cars each year. We conservatively estimate 3%-5% and 154 million cars in 2014. We estimat...

AI Technical Summary

Problems solved by technology

[0004] At present, a large number of asphalt damping pads are used in automobiles, and the sound insulation effect is poor, causing peculiar smell in the automobile, and some models have an unpleasant smell

Dizziness and discomfort after a long period of time will affect driving safety

At present, in order to reduce vibration and noise, the truck driver's cab adopts mechanical spring and air spring vibration reduction technology. The ride comfort of the car has been improved, but the noise and vibration reduction effect of the car cabin is average

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