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Waterborne damping coating for vehicle

A damping coating, water-based technology, applied in epoxy resin coatings, coatings, conjugated diene coatings, etc., can solve problems such as odor, poor environmental protection of vibration damping materials, and easy breakage of asphalt, to avoid toxic gases, Effects of weight reduction and low specific gravity

Inactive Publication Date: 2013-08-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, asphalt is easily broken in winter, and the vibration-damping materials for façades such as the front wall are poor in environmental protection and have an odor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 30% for styrene-acrylic emulsion 1, 10% for styrene-acrylic emulsion 3, 8% for epoxy resin emulsion, 20% for calcium carbonate, 15% for mica, 1% for heat-expandable organic hollow filling material polyacrylonitrile fiber, film-forming aid 5%, foaming agent azobisisobutyronitrile 0.1%, thickener 4%, water 6.9%, the above raw materials are mixed and dispersed in a star mixer, and then vacuum degassed. A water-based damping paint 1 for vehicles was prepared.

Embodiment 2

[0024] 20% of styrene-acrylic emulsion 2, 14% of styrene-butadiene emulsion, 12% of talc, 10% of mica, 15% of diatomaceous earth, 10% of acicular powder, 1% of heat-expandable organic hollow filling material polyester fiber, organic Foaming agent is dinitrosopentyltetramine 3%, film-forming aid 2%, thickener 3%, water is 10%, above raw material carries out mixing and dispersing 30 minutes in planetary mixer, and then Vacuum degassed, filtered. A water-based damping paint 2 for vehicles was prepared.

Embodiment 3

[0026] 25% for styrene-acrylic emulsion 2, 15% for styrene-acrylic emulsion 4, 14% for gypsum, 8% for diatomaceous earth, 15% for mica, 3% for glass microspheres, 0.5% for heat-expandable organic hollow filling material polyacrylonitrile fiber , the organic foaming agent is azobisisobutyronitrile 2%, the thickener is 3%, and the water is 14.5%. The above raw materials are mixed and dispersed in a stirring planetary mixer for 30 minutes, then vacuum degassed, and filtered. A water-based damping paint 3 for vehicles was prepared.

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Abstract

A waterborne damping coating for vehicles of the invention belongs to the fields of chemical product and coating preparation. The waterborne damping coating comprises an emulsion base material, an inorganic matter filler, a film forming additive, a thickening agent, a heating-expansible organic hollow filling material, an organic foaming agent, and water. The emulsion base material is compounded by 2-3 emulsions with different Tgs; the using amounts of the heating-expansible organic hollow filling material and the organic foaming agent respectively account for, on a weight basis, 0.3%-5% and 0.1%-5% of the total amount of the waterborne damping coating. The thick paste coating prepared in the invention has a damping value of 0.06-0.15 at 20-60 DEG C; the coating has a micropore structure,can prevent film defects such as chaps, cracks, needle eyes, expansion and the like caused by the coating, can form a film with a thickness of 3-6 mm by coating once, and is applicable to the coatingof vibration parts of various vehicles and motor products so as to inhibit vibration and reduce noise.

Description

technical field [0001] The invention belongs to the field of chemical products and paint preparation, and particularly relates to a high-build paint for coating vibration parts such as various vehicles and motor products to suppress vibration and reduce noise inside the car. Background technique [0002] At present, in the floor, front wall, trunk, roof, and door position of the car, in order to endow the steel plate with vibration damping performance, vibration damping materials such as asphalt series or their composite series plates are used. On the floor and other parts, stamping is carried out according to the shape, and the formed vibration-damping material is placed on the automobile spraying line, and the asphalt series pressure-sensitive adhesive is used for positioning. When passing through the heating and drying oven, it can be bonded to the steel plate. However, asphalt is easily broken in winter, and the vibration-damping materials for façades such as the cowl ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D109/06C09D163/00C09D7/12
Inventor 李亚鹏王静媛
Owner JILIN UNIV
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