CN103555116B - A kind of Low-density environmentally-friefloor damping noise reduction protective cover - Google Patents
A kind of Low-density environmentally-friefloor damping noise reduction protective cover Download PDFInfo
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- CN103555116B CN103555116B CN201310582576.9A CN201310582576A CN103555116B CN 103555116 B CN103555116 B CN 103555116B CN 201310582576 A CN201310582576 A CN 201310582576A CN 103555116 B CN103555116 B CN 103555116B
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Abstract
The invention discloses a kind of Low-density environmentally-friefloor damping noise reduction protective cover, this coating is made up of thermoplastic acrylic resin, ethylene-vinyl acetate copolymer, softening agent, whipping agent, foamed promoter, linking agent, additional crosslinker, thixotropic agent, non-blushing thinner, pigment, filler etc.This coating can solidify by 30min at 140 DEG C, contrast conventional P VC type car base paint, cured article has that good elasticity, good corrosion resistance, density are low, strong adhesion, damping noise reduction excellent performance, simultaneously not halogen-containing, the advantages such as environmental protection, this coating can be applied in the positions such as car floor, wheel cover, gusset, plays damping, the effect such as noise reduction, anti-stone hit.
Description
Technical field
The present invention relates to a kind of automobile chassis paint, particularly a kind of Low-density environmentally-friefloor damping noise reduction protective cover.
Background technology
Automobile in the process of moving; at the bottom of car and the place such as mudguard for vehicle wheel often will be subject to the impact of silt, rubble and sewage etc. and wash away; thus car sole is caused easily to be lost protective capability by corrosion; in addition; in running car, the vibrations of engine, wheel can cause empathizing with chassis in a certain frequency; make people produce uncomfortable sensation, therefore need at these position brushing chassis damping noise reduction protective covers.The automobile chassis paint used in the market is mostly PVC type, the winter hardiness of product, elasticity, ageing resistance are poor, density is larger simultaneously, be unfavorable for reducing car body deadweight, reduce fuel oil consumption, improve the economy of automobile, in addition containing harmful materials such as halogens, be unfavorable for environmental protection.
Summary of the invention
In order to solve the deficiency of above-mentioned currently available products, the invention provides a kind of Low-density environmentally-friefloor damping noise reduction protective cover.This coating is in triturating, first consider that the feature of environmental protection will be had, coating adopts pulverous thermoplastic acrylic resin to be matrix resin, softening agent is coordinated to use, there is good plasticizing function at 140 DEG C, not containing halogen, in baking and incineration course, there will not be dehydrochlorination reaction, friendly to environment.It is secondary has lower density, adopts Powdered EVA resin to coordinate whipping agent, blowing promotor, linking agent, additional crosslinker to form foaming system, utilizes abscesses numerous in matrix to play the effect reducing coating density.When spraying same thickness, reducing the usage quantity of coating, indirectly reducing vehicle weight, reduce fuel oil consumption, to reach the object of economy.Finally to reach effect of vibration and noise reduction good, because thermoplastic acrylic resin, EVA resin all have good elasticity, shock absorption can be played to the vibrations produced during automobilism, noise, coating has numerous abscess simultaneously, and abscess is open cell type, effectively can absorb sound wave, play the effect of damping, sound absorption, noise reduction.
To achieve these goals, the technical scheme that the present invention takes is: a kind of Low-density environmentally-friefloor damping noise reduction protective cover, is characterized in that, is made up of following component by weight percentage:
Thermoplastic acrylic resin 15 ~ 25%
EVA resin 10 ~ 20%
Softening agent 25 ~ 40%
Whipping agent 0.5 ~ 2%
Blowing promotor 0.1 ~ 0.5%
Linking agent 0.1 ~ 0.5%
Additional crosslinker 0.1 ~ 0.3%
Thixotropic agent 10 ~ 20%
Non-blushing thinner 1 ~ 3%
Pigment 0.1 ~ 0.5%
Filler 10 ~ 20%.
Thermoplastic acrylic resin of the present invention is any one or a few in pulverous polymethylmethacrylate, polymethyl acrylate, poly-n-butyl methacrylate, butyl polyacrylate.
EVA resin of the present invention is Powdered, and its VA content is 6 ~ 28%, and melting index is in 1 ~ 50 scope.
Softening agent of the present invention is any one or a few in dibutyl phthalate (DBP), o-phthalic acid dibutyl ester, diisononyl phthalate, butyl benzyl phthalate, Di Iso Decyl Phthalate, Octyl adipate, dioctyl sebacate.
Whipping agent of the present invention is Cellmic C 121 (AC).
Blowing promotor of the present invention is any one or two kinds in zinc oxide, Zinic stearas.
Linking agent of the present invention is dicumyl peroxide (DCP).
Additional crosslinker of the present invention is any one or two kinds in cyanacrylate (TAIC), trimethylolpropane trimethacrylate (TMPTMA).
Thixotropic agent of the present invention is nano-calcium carbonate.
Non-blushing thinner of the present invention is calcium oxide.
Pigment of the present invention is carbon black.
Filler of the present invention be in water-ground limestone, light calcium carbonate, talcum powder any one or multiple.
The preparation method of Low-density environmentally-friefloor vibration and noise reducing protective cover adopts following explained hereafter: take each component by mass percentage; after first thermoplastic acrylic resin, EVA resin, softening agent being joined successively high speed dispersor, high-speed stirring is disperseed; after adding whipping agent, blowing promotor, linking agent, additional crosslinker part, non-blushing thinner, pigment more successively, high-speed stirring is disperseed; finally add thixotropic agent, the dispersion of filler high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.
The beneficial effect that the present invention produces is: this coating can solidify by 30min at 140 DEG C, contrast conventional P VC type car base paint, cured article has that good elasticity, good corrosion resistance, density are low, strong adhesion, damping noise reduction excellent performance, simultaneously not halogen-containing, the advantages such as environmental protection, this coating can be applied in the positions such as car floor, wheel cover, gusset, plays damping, the effect such as noise reduction, anti-stone hit.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment 1(is by mass percentage):
Polymethylmethacrylate 20%
EVA resin 15%
O-phthalic acid dibutyl ester 35%
AC1%
Zinc oxide 0.2%
DCP0.2%
TAIC0.1%
Nano-calcium carbonate 15%
Calcium oxide 2%
Carbon black 0.5%
Light calcium carbonate 11%.
Take each component respectively by mass percentage; after first polymethylmethacrylate, EVA resin, o-phthalic acid dibutyl ester being joined successively high speed dispersor, high-speed stirring is disperseed; after adding AC, zinc oxide, DCP, TAIC, calcium oxide, carbon black more successively, high-speed stirring is disperseed; finally add nano-calcium carbonate, the dispersion of light calcium carbonate high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.This coating places 30 minutes after fixing at 140 DEG C in baking oven, is cooled to room temperature, places and carry out performance test after 24 hours.
Embodiment 2(is by mass percentage):
Polymethylmethacrylate 15%
EVA resin 20%
Diisononyl phthalate 33%
AC1.5%
Zinic stearas 0.4%
DCP0.4%
TAIC0.2%
Nano-calcium carbonate 16%
Calcium oxide 1%
Carbon black 0.5%
Water-ground limestone 12%.
Take each component respectively by mass percentage; after first polymethylmethacrylate, EVA resin, diisononyl phthalate being joined high speed dispersor, high-speed stirring is disperseed; add AC, Zinic stearas, DCP, TAIC, calcium oxide, the dispersion of carbon black high-speed stirring again; finally add nano-calcium carbonate, the dispersion of water-ground limestone high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.This coating places 30 minutes after fixing at 140 DEG C in baking oven, is cooled to room temperature, places and carry out performance test after 24 hours.
Embodiment 3(is by mass percentage):
Poly-n-butyl methacrylate 25%
EVA resin 10%
Octyl adipate 40%
AC0.5%
Zinc oxide 0.2%
DCP0.2%
TMPTMA0.1%
Nano-calcium carbonate 10%
Calcium oxide 3%
Carbon black 0.5%
Talcum powder 10.5%.
Take each component respectively by mass percentage; after first poly-n-butyl methacrylate, EVA resin, Octyl adipate being joined high speed dispersor, high-speed stirring is disperseed; add AC, zinc oxide, DCP, TMPTMA, calcium oxide, the dispersion of carbon black high-speed stirring again; finally add nano-calcium carbonate, the dispersion of talcum powder high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.This coating places 30 minutes after fixing at 140 DEG C in baking oven, is cooled to room temperature, places and carry out performance test after 24 hours.
Embodiment 4(is by mass percentage):
Polymethyl acrylate 25%
EVA resin 15%
Butyl benzyl phthalate 30%
AC0.5%
Zinic stearas 0.1%
DCP0.1%
TAIC0.1%
Nano-calcium carbonate 16%
Calcium oxide 1%
Carbon black 0.2%
Water-ground limestone 12%.
Take each component respectively by mass percentage; after first polymethyl acrylate, EVA resin, butyl benzyl phthalate being joined high speed dispersor, high-speed stirring is disperseed; add AC, Zinic stearas, DCP, TAIC, calcium oxide, the dispersion of carbon black high-speed stirring again; finally add nano-calcium carbonate, the dispersion of water-ground limestone high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.This coating places 30 minutes after fixing at 140 DEG C in baking oven, is cooled to room temperature, places and carry out performance test after 24 hours.
Embodiment 5(is by mass percentage):
Butyl polyacrylate 23
EVA resin 12
Dioctyl sebacate 32
AC0.6
Zinc oxide 0.1
DCP0.2
TMPTMA0.1
Nano-calcium carbonate 18
Calcium oxide 2
Carbon black 0.5
Light calcium carbonate 11.5
Take each component respectively by mass percentage; after first butyl polyacrylate, EVA resin, dioctyl sebacate being joined high speed dispersor, high-speed stirring is disperseed; add AC, zinc oxide, DCP, TMPTMA, calcium oxide, the dispersion of carbon black high-speed stirring again; finally add nano-calcium carbonate, the dispersion of light calcium carbonate high-speed stirring; extrude after stirring; disperse further through three-roll grinder again, namely obtain Low-density environmentally-friefloor vibration and noise reducing protective cover.This coating places 30 minutes after fixing at 140 DEG C in baking oven, is cooled to room temperature, places and carry out performance test after 24 hours.
The performance test results of the Low-density environmentally-friefloor vibration and noise reducing protective cover that above-mentioned five embodiments are made respectively is as shown in table 1:
Table 1
Consider the performance before and after above-described embodiment solidification; the product viscosity of embodiment 1 is suitable, hardness after solidification, shearing resistance, tensile strength and unit elongation, shock-resistance etc. all better; for optimum embodiment; the Low-density environmentally-friefloor damping noise reduction protective cover obtained according to it, can produce the automobile protective cover that energy-conserving and environment-protective more, damping noise reduction effect are better.
Claims (4)
1. a Low-density environmentally-friefloor damping noise reduction protective cover, is characterized in that, is made up of following component by mass percentage:
Thermoplastic acrylic resin 15 ~ 25%
EVA resin 10 ~ 20%
Softening agent 25 ~ 40%
Whipping agent 0.5 ~ 2%
Blowing promotor 0.1 ~ 0.5%
Linking agent 0.1 ~ 0.5%
Additional crosslinker 0.1 ~ 0.3%
Thixotropic agent 10 ~ 20%
Non-blushing thinner 1 ~ 3%
Pigment 0.1 ~ 0.5%
Filler 10 ~ 20%;
Described thermoplastic acrylic resin is any one or a few in pulverous polymethylmethacrylate, polymethyl acrylate, poly-n-butyl methacrylate, butyl polyacrylate;
Described EVA resin is Powdered, and its VA content is 6 ~ 28%, and melting index is in 1 ~ 50 scope;
Described softening agent is any one or a few in dibutyl phthalate (DBP), o-phthalic acid dibutyl ester, diisononyl phthalate, butyl benzyl phthalate, Di Iso Decyl Phthalate, Octyl adipate, dioctyl sebacate;
Described whipping agent is Cellmic C 121;
Described blowing promotor is any one or two kinds in zinc oxide, Zinic stearas;
Described filler be in water-ground limestone, light calcium carbonate, talcum powder any one or multiple.
2. a kind of Low-density environmentally-friefloor damping noise reduction protective cover according to claim 1, is characterized in that: described linking agent is dicumyl peroxide.
3. a kind of Low-density environmentally-friefloor damping noise reduction protective cover according to claim 1, is characterized in that: described additional crosslinker is any one or two kinds in cyanacrylate, trimethylolpropane trimethacrylate.
4. a kind of Low-density environmentally-friefloor damping noise reduction protective cover according to claim 1, it is characterized in that: described thixotropic agent is nano-calcium carbonate, described non-blushing thinner is calcium oxide, and described pigment is carbon black.
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| CN103937349A (en) * | 2014-03-21 | 2014-07-23 | 安徽蓝柯复合材料有限公司 | Anti-fungus and anti-mildew paint and preparation method |
| CN105086691A (en) * | 2015-09-07 | 2015-11-25 | 无锡市嘉邦电力管道厂 | Shock-absorbing and lubricating coating for buildings and preparation method and applying method of shock-absorbing and lubricating coating |
| CN105199410A (en) * | 2015-11-12 | 2015-12-30 | 三友（天津）高分子技术有限公司 | Soundproof wax for automobile |
| CN106978060A (en) * | 2017-03-31 | 2017-07-25 | 苏州海歌电器科技有限公司 | Body case of cleaner with dust-proof vibration absorbing performance |
| CN108296475A (en) * | 2017-09-03 | 2018-07-20 | 安徽天裕汽车零部件制造有限公司 | A kind of automobile chassis composite material and preparation method that soundproof effect is good |
| CN108706912A (en) * | 2018-03-19 | 2018-10-26 | 重庆大学 | A kind of poly- sand sound absorber and preparation method thereof |
| CN108441715A (en) * | 2018-04-13 | 2018-08-24 | 合肥市旺友门窗有限公司 | A kind of aluminium alloy door window section and preparation method thereof |
| CN112409854A (en) * | 2020-11-16 | 2021-02-26 | 三友（天津）高分子技术有限公司 | Stone-impact-resistant coating for low-density aluminum substrate |
| CN116218295B (en) * | 2023-03-01 | 2024-05-07 | 博尔泰(上海)化工科技发展有限公司 | Low-density high-damping PVC (polyvinyl chloride) coating and preparation method thereof |
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| US5985435A (en) * | 1996-01-23 | 1999-11-16 | L & L Products, Inc. | Magnetized hot melt adhesive articles |
| KR100367888B1 (en) * | 1996-05-10 | 2003-02-20 | 씨씨아이 가부시키가이샤 | Energy conversion composition |
| US6706802B2 (en) * | 2001-08-31 | 2004-03-16 | L & L Products, Inc. | Sealants |
| US7199165B2 (en) * | 2003-06-26 | 2007-04-03 | L & L Products, Inc. | Expandable material |
| US20050159531A1 (en) * | 2004-01-20 | 2005-07-21 | L&L Products, Inc. | Adhesive material and use therefor |
| CN102181091B (en) * | 2011-04-19 | 2013-05-01 | 三友（天津）高分子技术有限公司 | Adhesive and modified EVA (ethylene vinyl acetute) foaming composite for automobiles |
| CN102181241B (en) * | 2011-04-19 | 2012-08-22 | 三友（天津）高分子技术有限公司 | Thermal expansion banded adhesive special for automobiles and preparation method thereof |
| CN103122094A (en) * | 2012-12-13 | 2013-05-29 | 德尔惠(中国)有限公司 | Odorless environment-friendly EVA (ethylene-vinyl acetate) foaming material |
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