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Low-density environment-friendly damping and denoising protective coating

A protective coating and low-density technology, applied in the direction of coating, etc., can solve the problems of easy corrosion, discomfort, cold resistance, poor elasticity and aging resistance of the bottom of the car, and achieve excellent shock absorption and noise reduction performance and good corrosion resistance. , Strong adhesion effect

Active Publication Date: 2014-02-05
三友(天津)高分子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the running of the car, the bottom of the car and the fenders of the wheels are often impacted and washed by sand, gravel and sewage, which makes the bottom of the car easily corroded and loses its protection. In addition, the engine of the car is running 1. The vibration of the wheels will resonate with the chassis at a certain frequency, which makes people feel uncomfortable. Therefore, it is necessary to paint the chassis shock-absorbing and noise-reducing protective paint on these parts
At present, most of the automotive chassis coatings used in the market are PVC-type. The products have poor cold resistance, elasticity, and aging resistance. At the same time, the density is relatively high, which is not conducive to reducing the weight of the car body, reducing fuel consumption, and improving the economy of the car. In addition, it also contains halogens and other harmful substances, which is not conducive to environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 (by mass percentage):

[0031] Polymethylmethacrylate 20%

[0032] EVA resin 15%

[0033] Dioctyl phthalate 35%

[0034] AC 1%

[0035] Zinc Oxide 0.2%

[0036] DCP 0.2%

[0037] TAIC 0.1%

[0038] Nano Calcium Carbonate 15%

[0039] Calcium Oxide 2%

[0040] Carbon black 0.5%

[0041] Light Calcium Carbonate 11%.

[0042] Weigh each component according to the mass percentage, first add polymethyl methacrylate, EVA resin, dioctyl phthalate to the high-speed disperser in turn, stir and disperse at high speed, then add AC, zinc oxide, DCP, After TAIC, calcium oxide, and carbon black are mixed and dispersed at high speed, nano-calcium carbonate and light calcium carbonate are added and dispersed at high speed, and then extruded after stirring evenly, and then further dispersed by a three-roller mill to obtain low-density environmental protection, vibration reduction and noise reduction Protective paint. The coating was cured after being placed i...

Embodiment 2

[0043] Embodiment 2 (by mass percentage):

[0044] Polymethylmethacrylate 15%

[0045] EVA resin 20%

[0046] Diisononyl Phthalate 33%

[0047] AC 1.5%

[0048] Zinc stearate 0.4%

[0049] DCP 0.4%

[0050] TAIC 0.2%

[0051] Nano Calcium Carbonate 16%

[0052] Calcium Oxide 1%

[0053] Carbon black 0.5%

[0054] Ground Calcium Carbonate 12%.

[0055] Weigh each component according to mass percentage, first add polymethyl methacrylate, EVA resin, and diisononyl phthalate to a high-speed disperser, then stir and disperse at a high speed, then add AC, zinc stearate, DCP , TAIC, calcium oxide, and carbon black are stirred and dispersed at high speed, and finally nano-calcium carbonate and heavy calcium carbonate are added to stir and disperse at high speed. After stirring evenly, extrude, and then further dispersed by a three-roll mill to obtain low-density environmental protection vibration and noise reduction Protective paint. The coating was cured after being placed...

Embodiment 3

[0056] Embodiment 3 (by mass percentage):

[0057] Polybutylmethacrylate 25%

[0058] EVA resin 10%

[0059] Dioctyl Adipate 40%

[0060] AC 0.5%

[0061] Zinc Oxide 0.2%

[0062] DCP 0.2%

[0063] TMPTMA 0.1%

[0064] Nano calcium carbonate 10%

[0065] Calcium Oxide 3%

[0066] Carbon black 0.5%

[0067] Talc 10.5%.

[0068] Weigh each component according to the mass percentage, first add polybutylmethacrylate, EVA resin, dioctyl adipate to the high-speed disperser, stir and disperse at high speed, then add AC, zinc oxide, DCP, TMPTMA, oxidation Calcium and carbon black are stirred and dispersed at high speed, and finally nano-calcium carbonate and talcum powder are added and dispersed at high speed, stirred evenly and then extruded, and then further dispersed by a three-roll mill to obtain a low-density environmental protection coating for vibration reduction and noise reduction. The coating was cured after being placed in an oven at 140°C for 30 minutes, cooled...

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PUM

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Abstract

The invention discloses a low-density environment-friendly damping and denoising protective coating. The coating comprises thermoplastic acrylic resin, an ethylene vinyl acetate copolymer, a plasticizer, a foaming agent, a foaming accelerant, a crosslinking agent, an assistant crosslinker, a thixotropic agent, a moisture proof agent, a pigment, filler and the like. The coating can be cured at the temperature of 140 DEG C for 30min; compared with the traditional PVC (Polyvinyl Chloride) vehicle bottom coating, the low-density environment-friendly damping and denoising protective coating has the advantages that a cured substance has the advantages of favorable elasticity, good corrosion resistance, low density, strong adhesive force, excellent damping and denoising performances, no halogen, environment friendliness and the like; the coating can be applied to positions such as a floor, a wheel cover, a side body and the like of a car to play roles in damping, denoising, resisting to stone impact and the like.

Description

technical field [0001] The invention relates to a chassis paint for automobiles, in particular to a low-density environmental protection shock-absorbing and noise-reducing protective paint. Background technique [0002] When the car is running, the bottom of the car and the fenders of the wheels are often impacted and washed by sand, gravel and sewage, etc., which makes the bottom of the car easily corroded and loses its protection. In addition, the engine of the car during driving 1. The vibration of the wheels will cause resonance with the chassis at a certain frequency, which will make people feel uncomfortable. Therefore, it is necessary to paint the chassis shock-absorbing and noise-reducing protective paint on these parts. At present, most of the automotive chassis coatings used in the market are PVC-type. The products have poor cold resistance, elasticity, and aging resistance. At the same time, the density is relatively high, which is not conducive to reducing the we...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D133/10C09D133/08C09D123/08C09D7/12
Inventor 吴子刚李士学王永明高之香李建武张卫军李崇唐斌
Owner 三友(天津)高分子技术有限公司
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