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Modified asphalt hot-melt damping material for vehicles and preparation method and construction method thereof

A technology of modified asphalt and damping materials, which can be used in vehicle parts, building insulation materials, transportation and packaging, etc. It can solve the problems of unsatisfactory vibration and noise reduction, achieve excellent vibration and noise reduction performance, and improve damping performance , The effect of comprehensive performance improvement

Active Publication Date: 2010-02-24
BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent (Patent No. ZL85104749.1) discloses a wide temperature range high-damping hot-melt damping material for the automotive industry, but the shrinkage rate of the above-mentioned damping material is 5%, and the damping loss factor is only about 0.3, so the reduction Vibration and noise reduction effect is not very ideal
Chinese patent (patent No. 200410035402.1) discloses another SBS modified asphalt hot-melt damping material used in the automobile industry and its preparation method. The hot-melt shrinkage rate of this material is only 1%, and the damping loss factor is only Around 0.4, the effect of vibration reduction and noise reduction is not very ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Add 30 kg of linear SBS and 100 kg of 10# asphalt into the modification furnace at a temperature of 190°C, stir until the SBS is completely dissolved; then mix 20 kg of EPDM rubber with 50 kg of 60 mesh mica powder Mix evenly on the machine; add 130 kg of the above-mentioned modified asphalt and 70 kg of mixed rubber into a kneader at a temperature of 70 ° C, and add 50 kg of C9 petroleum resin, 200 kg of calcium carbonate, and 300 kg of 60-mesh mica powder, and mix well After uniformity, it is extruded and calendered in an extruder.

example 2

[0023] Add 15kg of EVA and 100kg of 40# asphalt into the modification furnace at a temperature of 160°C, stir until the EVA is completely dissolved; then mix 40kg of butyl rubber and 50kg of 60-mesh mica powder on a mixer to make them even Add 115 kg of the above-mentioned modified asphalt and 90 kg of mixed rubber into a kneader at a temperature of 70°C, add 50 kg of terpene resin, 200 kg of calcium carbonate, and 300 kg of 60-mesh mica powder, mix well and then extrude Extrusion and calendering in the machine.

example 3

[0025] Put 10kg of linear SBS, 5kg of EVA and 100kg of 40# asphalt into the modification furnace at a temperature of 190°C, stir until the SBS and EVA are completely dissolved; then add 40kg of butyl rubber and 50kg of 60-mesh mica Mix the powder evenly on a mixer; add 115 kg of the above-mentioned modified asphalt and 90 kg of mixed rubber into a kneader at a temperature of 70 ° C, and add 100 kg of C9 petroleum resin, 200 kg of calcium carbonate, and 300 kg of 60-mesh mica powder Kilogram, mixed thoroughly and then extruded and calendered in an extruder.

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Abstract

The invention relates to a modified asphalt hot-melt damping material for vehicles. Modified asphalt and rubber are blended; tackifying resin is added for strengthening the adhesive property of the damping material; the damping material comprises the following components in portion by weight: 100 to 200 portions of the modified asphalt, 5 to 60 portions of the rubber, 50 to 200 portions of the resin, and 250 to 800 portions of filler; and the materials are subjected to modification, rubber refining, kneading, extrusion and tabletting molding to produce the modified asphalt hot-melt damping material for the vehicles. When the modified asphalt hot-melt damping material is used on a vehicle, the modified asphalt hot-melt damping material for the vehicles is paved on a vehicle body to achievethermal lamination by only directly using the enamel paint heating process of the vehicle body. The damping material is an excellent vibration-damping noise-reduction material and has the characteristics of wide temperature range and high damping, and the damping loss factor can reach 0.8 at a temperature of between 20 and 40 DEG C.

Description

technical field [0001] The invention relates to a damping, vibration-reduction and noise-reduction material used inside a vehicle and a preparation and construction method thereof, in particular to a modified asphalt hot-melt damping material used for a vehicle and a preparation and construction method thereof. The damping material has the characteristics of high damping and wide temperature range, and can be hot-melt bonded inside the vehicle to reduce noise, suppress vibration, and improve vehicle ride comfort. Background technique [0002] With the rapid development of the rail transit industry and the automobile industry, in order to create a comfortable sports space, polymer damping materials for vibration and noise reduction have been increasingly used in the body and floor of vehicles, trains and other vehicles. Polymer damping materials mainly use the viscoelasticity of polymer materials to convert kinetic energy into heat energy due to the internal friction betw...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L7/00C08L23/22C08L23/28C08L23/16C08L9/02C08L83/04C08K3/22C08K3/30C08K3/26C08K3/34B60R13/08B29B7/00B29C47/00B29C43/24
Inventor 罗仡科谭亮红贺才春
Owner BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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