CN109021486A - Dampening composition and its preparation method and application - Google Patents
Dampening composition and its preparation method and application Download PDFInfo
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- CN109021486A CN109021486A CN201810598461.1A CN201810598461A CN109021486A CN 109021486 A CN109021486 A CN 109021486A CN 201810598461 A CN201810598461 A CN 201810598461A CN 109021486 A CN109021486 A CN 109021486A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses dampening compositions and its preparation method and application, wherein dampening composition includes: the ABS resin of 55-80 parts by weight；The neoprene of 5-30 parts by weight；The inorganic filler of 5-15 parts by weight；The compatilizer of 1-15 parts by weight；The antioxidant of 0.1-1 parts by weight；The lubricating oil of 0.1-3 parts by weight；The coupling agent of 0.1-1 parts by weight.Thus the dampening composition of the embodiment of the present invention has good damping, the plastic chassis of air conditioner indoor unit is prepared using the dampening composition, its damped coefficient can achieve 0.5 or more in -10 degrees Celsius to 30 degree Celsius temperature ranges, and abnormal sound of expanding with heat and contract with cold number reduces by 30% or more.
Description
Technical field
The invention belongs to field of air conditioning, specifically, the present invention relates to dampening compositions and its preparation method and application.
Background technique
The noise problem that mechanical oscillation generate produces great influence in all trades and professions, or even is just threaten people's
Physiological health is especially placed in indoor product, such as air-conditioning, refrigerator, dust catcher household appliances, although these products are convenient
The clothing, food, lodging and transportion -- basic necessities of life of people, but its slightly larger noise annoyings people always, slight person's insomnia, serious person's neurasthenia, very
To other health diseases are caused, become the problem of people have a headache.
Air conditioner indoor unit product is mostly using plastic housing as decorating structure at present, but air-conditioning can be because of plastic part when opening
Generation is expanded with heat and contract with cold, to generate abnormal sound, which has become logical problem of industry, in order to eliminate or reduce its generation
Noise mounts the substances such as sponge, foam inside it, but produces little effect.
Although can partially alleviate noise from foaming acoustic control angle, this mode is merely resting on stifled mode,
It is not to accomplish to dredge from source and solve, certain occasion noise reduction effects are not significant, paste sponge pair especially for air conditioner indoor unit
Abnormal sound problem of expanding with heat and contract with cold is unable to improve；Moreover the mode lost labor of this patch sponge, leads to cost increase, the processing of sponge
By foaming agent, environment, not environmentally is polluted.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of dampening composition, which and then made by being modified acquisition to ABS resin
Obtaining the dampening composition can effectively reduce, even be eliminated abnormal sound.Air conditioner indoor unit is prepared especially with the dampening composition
Plastic chassis can solve noise problem from source.
According to an aspect of the present invention, the invention proposes dampening compositions, according to an embodiment of the invention, the damping
Composition includes: the ABS resin of 55-80 parts by weight；The neoprene of 5-30 parts by weight；The inorganic filler of 5-15 parts by weight；1-
The compatilizer of 15 parts by weight；The antioxidant of 0.1-1 parts by weight；The lubricating oil of 0.1-3 parts by weight；The coupling agent of 0.1-1 parts by weight.
The plastic chassis of air conditioner indoor unit is prepared using the dampening composition, damped coefficient is at -10 degrees Celsius to 30 degree celsius temperatures
It can achieve 0.5 or more in range, abnormal sound of expanding with heat and contract with cold number reduces by 30% or more.
In addition, dampening composition according to the above embodiment of the present invention can also have the following additional technical features:
In some embodiments of the invention, the content of the neoprene is 8-20%.It is possible thereby to further increase
The damping capacity of dampening composition.
In some embodiments of the invention, the compatilizer is ABS resin grafted maleic anhydride compound.It is possible thereby to
Further increase the compatibility of neoprene and ABS resin.
In some embodiments of the invention, the inorganic filler be in calcium carbonate, talcum powder and barium sulfate extremely
Few one kind, the partial size of the inorganic filler are -3000 mesh of 1500 mesh.ABS can be reduced from there through above-mentioned inorganic filler is added
The cost of resin, while also playing the role of increasing intensity.
In some embodiments of the invention, the antioxidant is selected from Hinered phenols antioxidant and phosphorous acid esters antioxygen
At least one of agent, wherein the Hinered phenols antioxidant is selected from bis- (the 4- methyl-6-tert butyl benzene of 2,2- methylene-
Phenol), 4,4 '-thiobis (6- tert-butyl -3- methylphenol), N, N- [3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl] six
At least one of methylene diamines, the phosphite ester antioxidant be selected from three [2,4- di-tert-butyl-phenyl] phosphite esters,
At least one of diphosphorous acid pentaerythrite distearyl alcohol ester, the different certain herbaceous plants with big flowers ester of pentaerythritol diphosphite two.It is possible thereby into
The anti-aging performance of one step raising dampening composition.
In some embodiments of the invention, the lubricating oil is selected from paraffine base crude oil, naphthenic oil and dimethicone
At least one of.It is possible thereby to have the function that lubricate between dampening composition particle and metal surface of processing equipment, thus
Further increase its processing performance.
In some embodiments of the invention, the coupling agent be selected from 3-aminopropyltriethoxysilane, γ-(2,
The third oxygen of 3- epoxy) at least one of propyl trimethoxy silicane and isopropyl triisostearoyltitanate.Thus, it is possible to effective
Improve the interface performance between ABS resin and inorganic filler, and then significantly improves the intensity of dampening composition.
According to the second aspect of the invention, the invention proposes the method for the dampening composition for preparing preceding embodiment, roots
According to the embodiment of the present invention, this method comprises:
(1) inorganic filler is performed under heating conditions high-speed stirred with coupling agent to mix, so as to what is be surface-treated
Inorganic filler；
(2) by the antioxidant of the ABS resin of a part and neoprene, compatilizer and a part under organic solvent system
It carries out heating stirring and mixes the predetermined time, and distill out the organic solvent, to obtain pre-composition；
(3) pre-composition that obtains the inorganic filler for the surface treatment that step (1) obtains, step (2), another
The antioxidant progress high-speed stirred mixing of the ABS resin, lubricant and another part in portion, to obtain mixture；
(4) it in the mixture investment double screw extruder obtained step (3), is kneaded in the molten state,
Then it squeezes out, water cooling, heated-air drying, pelletizing, packaging, to obtain the dampening composition.
The method for preparing dampening composition of the above embodiment of the present invention as a result, first with coupling agent to inorganic filler
It is handled, and then the interface binding power of inorganic filler and ABS resin can be significantly improved；Secondly, inventor's selection is by one
The ABS resin divided is blended under organic solvent system with the antioxidant of neoprene compatilizer and a part, can be significant
It improves and effect is blended, neoprene is preferably blended with ABS resin, compatilizer is added in Blending Processes can be into one
Step improves neoprene and ABS resin compatibility, and antioxidant, which is added, can be effectively prevented the oxidation of each component under high temperature；Then,
The inorganic filler of surface treatment, neoprene are mixed with the mixture of ABS resin and another part ABS resin, mixed
Suitable lubricant is added during closing, and then obtains mixture；The mixture is finally subjected to extruding pelletization and obtains damping group
Close object.
In some embodiments of the invention, in step (1), high-speed stirring is carried out under the conditions of 60-80 degrees Celsius of temperature
Mix mixing 15 minutes.It is possible thereby to which effectively inorganic filler and coupling agent are sufficiently mixed.
In some embodiments of the invention, in step (2), described be stirred is in confined conditions, to take the photograph in 60-80
It carries out completing for 4-5 hours under family name's degree, the organic solvent is n,N-Dimethylformamide, tetrahydrofuran, N-Methyl pyrrolidone
Or ethylene glycol monobutyl ether.Thus it is imitated using the mixing that blending in organic solvent can significantly improve neoprene and ABS resin
Rate and the mixed uniformity, therefore only need to mix 4-5 hours under above-mentioned blending condition and can be completed, and reach uniformly mixed
It closes and requires.
According to the third aspect of the invention we, the invention proposes plastic chassis, according to an embodiment of the invention, the plastics
Chassis is prepared by the dampening composition that the dampening composition of preceding embodiment or the method for preceding embodiment are prepared.
According to the fourth aspect of the invention, the invention proposes air conditioner indoor unit, according to an embodiment of the invention, the sky
Adjust indoor unit that there is the plastic chassis of preceding embodiment.
According to the fifth aspect of the invention, the invention proposes air-conditionings, according to an embodiment of the invention, the air-conditioning has
The air conditioner indoor unit of preceding embodiment.
Detailed description of the invention
Fig. 1 is the flow chart of the method according to an embodiment of the invention for preparing dampening composition.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiments described below is exemplary, it is intended to for explaining this
Invention, and be not considered as limiting the invention.
According to an aspect of the present invention, the invention proposes dampening compositions, according to an embodiment of the invention, the damping
Composition includes: the ABS resin of 55-80 parts by weight；The neoprene of 5-30 parts by weight；The inorganic filler of 5-15 parts by weight；1-
The compatilizer of 15 parts by weight；The antioxidant of 0.1-1 parts by weight；The lubricating oil of 0.1-3 parts by weight；The coupling agent of 0.1-1 parts by weight.
The dampening composition of the embodiment of the present invention in ABS resin by adding suitable neoprene, compatilizer as a result,
Deng so that obtaining composition has good damping.Specifically, air conditioner indoor unit is prepared using the dampening composition
Plastic chassis, damped coefficient can achieve 0.5 or more in -10 degrees Celsius to 30 degree Celsius temperature ranges, and heat expansion is cold
Contracting abnormal sound number reduces by 30% or more.Therefore, which can be used in various household appliances, such as be used to prepare sky
The plastic chassis for adjusting indoor unit, noise problem can be solved from source, at high temperature can to solve conventional plastic material
The technical difficulty that generates abnormal sound due to expanding with heat and contract with cold and can not thoroughly eliminate.
In addition, damping capacity of the inventor for modified ABS resin, necessarily can achieve well by adding neoprene
Effect, but simultaneously be still to keep ABS resin itself characteristic, also to solve the consistency problem of neoprene.For this purpose, hair
Bright people optimizes to have obtained the ABS resin of 55-80 parts by weight；The neoprene of 5-30 parts by weight；The inorganic filler of 5-15 parts by weight；
The compatilizer of 1-15 parts by weight；The antioxidant of 0.1-1 parts by weight；The lubricating oil of 0.1-3 parts by weight；The coupling of 0.1-1 parts by weight
Agent.Compatilizer formula.Therefore, the additional amount of above-mentioned neoprene and appropriate compatilizer, antioxidant, lubricating oil and coupling
The addition of agent effectively improves the damping capacity of ABS resin.
According to a particular embodiment of the invention, the optimum content of neoprene is 8-20% in above-mentioned dampening composition.By
This still retains the performances such as the intensity of ABS resin while being effectively improved ABS resin damping capacity.Neoprene content is lower than
8% damping is poor, and content is higher than 20%, and chassis appearance is coarse, sense organ decline, while chassis intensity declines, and size is not
Stablize.
According to a particular embodiment of the invention, the compatilizer used in above-mentioned formula can be ABS resin grafted maleic
Acid anhydride compound.Due to the poor compatibility of neoprene and ABS resin, it is necessary to make rubber and ABS resin compatibility using compatilizer
It improves, and inventors have found that the problem of ABS resin grafted maleic anhydride compound can effectively solve the problem that the two compatibility, makes
Product is not stratified, and performance is more stable.
According to a particular embodiment of the invention, above-mentioned inorganic filler be in calcium carbonate, talcum powder and barium sulfate extremely
Few one kind.The cost of ABS resin can be reduced from there through above-mentioned inorganic filler is added, while also playing the role of increasing intensity.
According to a particular embodiment of the invention, the partial size of above-mentioned inorganic filler can be -3000 mesh of 1500 mesh.Inorganic filler partial size is less than
The appearance of 1500 mesh, the air conditioner indoor unit plastic chassis of dampening composition preparation is coarse, sense organ decline；And partial size is greater than 3000
The viscosity of mesh, dampening composition is excessive, has defect using the plastic chassis product of its preparation.Specifically, inorganic filler contains
Amount can be 5-15 weight %.Therefore suitable inorganic filler can not only reduce the cost of ABS resin, while can also reach increasing
The effect of reinforcement degree.
According to a particular embodiment of the invention, inorganic filler is preferably barium sulfate.Thus can significantly be increased using barium sulfate
Add the intensity and glossiness of dampening composition.Selected filler is barium sulfate, and barium sulfate is a kind of filling out for promotion chassis surface bloom
Material, and cost is relatively low, can further decrease surface frame cost.
According to a particular embodiment of the invention, above-mentioned antioxidant is selected from Hinered phenols antioxidant and phosphorous acid esters antioxygen
At least one of agent, wherein above-mentioned Hinered phenols antioxidant is selected from bis- (the 4- methyl-6-tert butyl benzene of 2,2- methylene-
Phenol), 4,4 '-thiobis (6- tert-butyl -3- methylphenol), N, N- [3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl] six
At least one of methylene diamines, above-mentioned phosphite ester antioxidant be selected from three [2,4- di-tert-butyl-phenyl] phosphite esters,
At least one of diphosphorous acid pentaerythrite distearyl alcohol ester, the different certain herbaceous plants with big flowers ester of pentaerythritol diphosphite two.Therefore, antioxidant
Addition can effectively improve the anti-aging performance of dampening composition.In addition, being needed in the preparation process of dampening composition
It is blended in hot conditions, and antioxidant appropriate is added, the oxidation of each component in preparation process can be effectively prevented.Specifically, on
The content for stating antioxidant can be 0.1-1 weight %, and then can achieve good antioxidation.
According to a particular embodiment of the invention, the preferred Hinered phenols antioxidant of the antioxidant and phosphite ester antioxidant
Combination antioxidant, wherein the Hinered phenols antioxidant be selected from 2,2- methylene-it is bis- (4- methyl-6-tert-butylphenol),
The phosphite ester antioxidant is three [2,4- di-tert-butyl-phenyl] phosphite esters.Inventors have found that 2,2- methylene-are bis-
The combination antioxidant of (4- methyl-6-tert-butylphenol) and described three [2,4- di-tert-butyl-phenyl] phosphite esters has stronger
Inoxidizability.Therefore, the ageing resistance of damping compound can be significantly proposed by using the combination antioxidant, and can be significant
Raising prepares the inoxidizability of each component in dampening composition preparation process.
According to a particular embodiment of the invention, bis- (the 4- methyl-6-terts of 2,2- methylene-described in the combination antioxidant
Butylphenol) it with the mass ratio of described three [2,4- di-tert-butyl-phenyl] phosphite esters is 1:1.It is possible thereby to further increase group
The antioxygenic property of antioxidant is closed, and then improves the ageing resistance of dampening composition.
According to a particular embodiment of the invention, above-mentioned lubricating oil can be for selected from paraffine base crude oil, naphthenic oil and dimethyl
At least one of silicone oil.It can achieve lubrication damping combination by the way that suitable lubricating oil is added in dampening composition as a result,
Effect between object particle and metal surface of processing equipment, to further increase its processing performance.Specifically, above-mentioned lubricating oil
Content can be with 0.1-3 weight %.And then it can achieve effective lubricant effect.If additive amount excessively if can be in chassis product table
Face is precipitated, and influences presentation quality.
According to a particular embodiment of the invention, above-mentioned lubricating oil preferred paraffinic oils.It is possible thereby to reduce cost, use simultaneously
Paraffin oil can be further improved the lubricating action between dampening composition particle and metal surface of processing equipment, thus further
Improve its processing performance.
According to a particular embodiment of the invention, above-mentioned coupling agent be selected from 3-aminopropyltriethoxysilane, γ-(2,
The third oxygen of 3- epoxy) at least one of propyl trimethoxy silicane and isopropyl triisostearoyltitanate.As a result, using above-mentioned
Several coupling agents, the interface performance that can be effectively improved between ABS resin and inorganic filler, and then significantly improve dampening composition
Intensity.
Specifically, the content of above-mentioned coupling agent can be 0.1-1 weight %.The coupling agent of the content cooperates 5-15 as a result,
The inorganic filler of weight %, can significantly improve the interface binding power of inorganic filler and ABS resin, and then significantly improve damping group
Close the intensity of object.According to a particular embodiment of the invention, the preferred 3-aminopropyltriethoxysilane of above-mentioned coupling agent, using this
Coupling agent makes the strength enhancing of dampening composition maximum.
According to the second aspect of the invention, the invention proposes the method for the dampening composition for preparing preceding embodiment, under
Face refers to the method for preparing dampening composition of Fig. 1 the present invention is described in detail specific embodiment.According to an embodiment of the invention, should
Method includes:
S100: being performed under heating conditions high-speed stirred with coupling agent for inorganic filler and mix, to be surface-treated
Inorganic filler；
S200: by the antioxidant of the ABS resin of a part and neoprene, compatilizer and a part in organic solvent system
Lower progress heating stirring mixes the predetermined time, and distills out organic solvent, to obtain pre-composition；
S300: pre-composition that the inorganic filler of the obtained surface treatment of step S100, step S200 are obtained, another portion
The antioxidant of ABS resin, lubricant and another part carries out high-speed stirred mixing, to obtain mixture；
S400: it in the mixture investment double screw extruder that step S300 is obtained, is kneaded in the molten state, so
It squeezes out afterwards, water cooling, heated-air drying, pelletizing, packaging, to obtain dampening composition.
The method for preparing dampening composition of the above embodiment of the present invention as a result, first with coupling agent to inorganic filler
It is handled, and then the interface binding power of inorganic filler and ABS resin can be significantly improved；Secondly, inventor's selection is by one
The ABS resin divided is blended under organic solvent system with the antioxidant of neoprene compatilizer and a part, can be significant
It improves and effect is blended, neoprene is preferably blended with ABS resin, compatilizer is added in Blending Processes can be into one
Step improves neoprene and ABS resin compatibility, and antioxidant, which is added, can be effectively prevented the oxidation of each component under high temperature；Then,
The inorganic filler of surface treatment, neoprene are mixed with the mixture of ABS resin and another part ABS resin, mixed
Suitable lubricant is added during closing, and then obtains mixture；The mixture is finally subjected to extruding pelletization and obtains damping group
Close object.
In addition, the content of each component is the ABS resin of 55-80 parts by weight in the dampening composition of above method preparation；5-
The neoprene of 30 parts by weight；The inorganic filler of 5-15 parts by weight；The compatilizer of 1-15 parts by weight；The antioxygen of 0.1-1 parts by weight
Agent；The lubricating oil of 0.1-3 parts by weight；The coupling agent of 0.1-1 parts by weight.Damping combination as a result, with said components and content
Damped coefficient of the object in -10 degrees Celsius to 30 degree Celsius temperature ranges is greater than 0.5.Therefore, which can be used for
In various household appliances, such as it is used to prepare the plastic chassis of air conditioner indoor unit, noise problem can be solved from source, thus
Solves the technical difficulty that conventional plastic material can generate abnormal sound and can not thoroughly eliminate due to expanding with heat and contract with cold at high temperature.
According to a particular embodiment of the invention, in step S100, inorganic filler and the mixing of coupling agent are Celsius in 60-80
It carries out under the conditions of the temperature of degree, and is carried out high-speed stirred 15 minutes using high-speed mixer.It is possible thereby to effectively will be inorganic
Filler is sufficiently mixed with coupling agent.
According to a particular embodiment of the invention, in step S200, the mixing of ABS resin and neoprene is taken the photograph in 60-80
It is carried out in organic solvent under family name's degree, it is therefore desirable to keep the closed of mixed process, to avoid the volatilization of organic solvent, cause
Environmental pollution and waste of solvent.Inventor is by organic solvent and heating and being blended ABS resin with neoprene, Ke Yixian
It writes and improves mixing efficiency and the mixed uniformity, only needing to mix 4-5 hours under above-mentioned blending condition can be completed, and reach
It is required to uniform mixing.
According to a particular embodiment of the invention, the organic solvent used can for n,N-Dimethylformamide, tetrahydrofuran,
N-Methyl pyrrolidone or ethylene glycol monobutyl ether.Since above-mentioned organic solvent can be to ABS resin and neoprene carry out portion
Divide dissolution, and then effectively improves the mixing efficiency of the two.In addition, can also be returned to above-mentioned organic solvent after the completion of mixing
It receives, reduces cost.
According to a particular embodiment of the invention, it in the mixed process of step S200 and step S300, is separately added into appropriate
Antioxidant it is possible to prevente effectively from the oxidation of each component at high temperature, while the anti-aging of final dampening composition can also be improved
Performance.It is successively mixed with neoprene in addition, ABS resin is divided into two parts, the mixing effect of neoprene can be improved
Rate.ABS resin can be specifically divided into two parts of equal portions.
According to the third aspect of the invention we, the invention proposes plastic chassis, according to an embodiment of the invention, the plastic bottom
Disk is prepared by the dampening composition that the dampening composition of preceding embodiment or the method for preceding embodiment are prepared.Tool
Body, which can directly be molded acquisition by dampening composition.
There is good damping and amortization using the plastic chassis that above-mentioned dampening composition is prepared as a result,.Specifically, the modeling
Expect that damped coefficient of the chassis in -10 degrees Celsius to 30 degree Celsius temperature ranges reaches 0.5 or more, abnormal sound of expanding with heat and contract with cold number drop
Low 30% or more.
Therefore, which can be used in various household appliances, such as be used to prepare the plastic bottom of air conditioner indoor unit
Disk can solve noise problem from source, so that the chassis for solving conventional plastic material at high temperature can be since heat expansion be cold
The technical difficulty for contracting and generating abnormal sound and can not thoroughly eliminating.
According to the fourth aspect of the invention, the invention proposes air conditioner indoor unit, according to an embodiment of the invention, the air-conditioning
Indoor unit has the plastic chassis of preceding embodiment.Since the plastic chassis is in -10 degrees Celsius to 30 degree Celsius temperature ranges
Damped coefficient reach 0.5 or more, abnormal sound of expanding with heat and contract with cold number reduce by 30% or more.
Therefore, the air conditioner indoor unit with the plastic chassis can solve noise problem from source, thoroughly eliminate tradition
The chassis of plastic material can generate abnormal sound due to expanding with heat and contract with cold at high temperature.Therefore, the air conditioner indoor unit of the embodiment of the present invention
Noise reduction is carried out without pasting sponge and foam, and then eliminates fee of material and manually installed expense, thereby reduce cost while also mentioning
The production efficiency of high air conditioner indoor unit.In addition, without using foaming agent required for production sponge, manufacture link is more environmentally friendly.
According to the fifth aspect of the invention, the invention proposes air-conditionings, according to an embodiment of the invention, before the air-conditioning has
The air conditioner indoor unit of face embodiment.Since above-mentioned air conditioner indoor unit has many advantages, such as low noise, at low cost, high production efficiency,
It is possible thereby to further increase the quality of air-conditioning, the comfortable use feeling of user is promoted.
Embodiment 1
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 4 hours under 80 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Embodiment 2
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 4 hours under 80 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Embodiment 3
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 4 hours under 80 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Embodiment 4
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 5 hours under 60 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Comparative example 1 (neoprene content is very few)
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 5 hours under 60 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Comparative example 2 (neoprene content is excessive)
(1) dampening composition:
(2) dampening composition is prepared:
1) inorganic filler is placed in high-speed mixer, doses coupling agent, stirred 15 minutes under the conditions of 60 degree, rewinding is standby
With the inorganic filler being surface-treated；
2) ABS is divided into two parts, a copy of it and neoprene, compatilizer, the antioxidant solution system in reaction kettle
Stirring 5 hours under 60 degree, solution use n,N-Dimethylformamide, and the slurry of premixing is distilled, and N, N- diformazan are recycled in evaporation
Base formamide solvent, obtains pre-composition；
3) pre-composition, the antioxygen for obtaining the inorganic filler of step 1) surface treatment and remaining ABS resin, step 2)
Agent, lubricant are added in high-speed mixer together according to the ratio, mix 5 minutes；
4) it by the mixture investment double screw extruder of step 3), is kneaded, is then squeezed out, water in the molten state
Cooling, heated-air drying, pelletizing are packed to get dampening composition is arrived.
(3) plastic chassis of air conditioner indoor unit is prepared:
Directly injection molding is carried out using above-mentioned dampening composition and obtains the plastic chassis of air conditioner indoor unit.
Evaluation method:
Respectively to the damped coefficient of the plastic chassis of embodiment 1-4 and comparative example the 1-2 air conditioner indoor unit being prepared,
Abnormal sound of expanding with heat and contract with cold number and tensile strength performance are measured:
Damped coefficient measurement: " GBT 18258-2000 damping material damping capacity test method " carries out according to national standards
Test
Abnormal sound of expanding with heat and contract with cold number test: by surface frame installation with air conditioner indoor unit on, in 7 degree of conditions of operating condition room environmental temperature
Under, booting waits 1 hour, then shuts down, the larger and medium abnormal sound number summation that record generates when shutting down.
As a result: being shown in Table 1
Table 1
Conclusion:
From upper 1 data of table as it can be seen that the damped coefficient of embodiment 1-4 is all larger than 0.5, abnormal sound of expanding with heat and contract with cold number is had dropped
30% or more (ABS resin chassis expand with heat and contract with cold abnormal sound number 32 times), comprehensive performance is improved.1 damped coefficient of comparative example is small
In 0.5, abnormal sound number is higher；The damped coefficient of comparative example 2 is up to 0.67, and abnormal sound of expanding with heat and contract with cold number is 13 times, but stretches strong
Degree drops to 23MPa, is unsatisfactory for product requirement.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (13)
1. a kind of dampening composition, characterized by comprising:
The ABS resin of 55-80 parts by weight；
The neoprene of 5-30 parts by weight；
The inorganic filler of 5-15 parts by weight；
The compatilizer of 1-15 parts by weight；
The antioxidant of 0.1-1 parts by weight；
The lubricating oil of 0.1-3 parts by weight；
The coupling agent of 0.1-1 parts by weight.
2. dampening composition according to claim 1, which is characterized in that the content of the neoprene is 15-25 weight
Part.
3. dampening composition according to claim 1, which is characterized in that the compatilizer is ABS resin grafted maleic
Acid anhydride compound.
4. dampening composition according to claim 1 or 3, which is characterized in that the inorganic filler is selected from calcium carbonate, cunning
At least one of mountain flour and barium sulfate, the partial size of the inorganic filler are -3000 mesh of 1500 mesh.
5. dampening composition according to claim 1 or 4, which is characterized in that the antioxidant is anti-selected from Hinered phenols
At least one of oxygen agent and phosphite ester antioxidant,
Wherein, the Hinered phenols antioxidant is selected from 2,2- methylene-bis- (4- methyl-6-tert-butylphenols), 4, and 4 '-is thio
Bis- (6- tert-butyl -3- methylphenols), N, in N- [3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl] hexamethylene diamine extremely
Few one kind,
The phosphite ester antioxidant is selected from three [2,4- di-tert-butyl-phenyl] phosphite esters, diphosphorous acid pentaerythrite two
At least one of stearic alcohol ester, the different certain herbaceous plants with big flowers ester of pentaerythritol diphosphite two.
6. dampening composition according to claim 1 or 5, which is characterized in that the lubricating oil is selected from paraffine base crude oil, ring
At least one of alkane oil and dimethicone.
7. dampening composition according to claim 1 or 6, which is characterized in that the coupling agent is selected from 3- aminopropyl
In triethoxysilane, γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicane and isopropyl triisostearoyltitanate extremely
Few one kind.
8. a kind of method for preparing any one of claim 1-7 dampening composition characterized by comprising
(1) inorganic filler high-speed stirred is performed under heating conditions with coupling agent to mix, it is inorganic so as to what is be surface-treated
Filler；
(2) antioxidant of the ABS resin of a part and neoprene, compatilizer and a part is carried out under organic solvent system
Heating stirring mixes the predetermined time, and distills out the organic solvent, to obtain pre-composition；
(3) pre-composition that obtains the inorganic filler for the surface treatment that step (1) obtains, step (2), another portion
The antioxidant of ABS resin, lubricant and another part carries out high-speed stirred mixing, to obtain mixture；
(4) it in the mixture investment double screw extruder obtained step (3), is kneaded in the molten state, then
It squeezes out, water cooling, heated-air drying, pelletizing, packaging, to obtain the dampening composition.
9. according to the method described in claim 8, it is characterized in that, in step (1), under the conditions of 60-80 degrees Celsius of temperature
High-speed stirred is carried out to mix 15 minutes.
10. according to the method described in claim 8, it is characterized in that, described be stirred is in confined condition in step (2)
Under, it carries out completing for 4-5 hours under 60-80 degrees Celsius, the organic solvent is n,N-Dimethylformamide, tetrahydrofuran, N-
Methyl pyrrolidone or ethylene glycol monobutyl ether.
11. a kind of plastic chassis, which is characterized in that the plastic chassis is combined by the described in any item dampings of claim 1-7
The dampening composition that any one of object or claim 8-10 the method are prepared is prepared.
12. a kind of air conditioner indoor unit, which is characterized in that the air conditioner indoor unit has plastic chassis described in claim 11.
13. a kind of air-conditioning, which is characterized in that the air-conditioning has air conditioner indoor unit described in claim 12.
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| CN201810598461.1A CN109021486A (en) | 2018-06-12 | 2018-06-12 | Dampening composition and its preparation method and application |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5246991A (en) * | 1989-05-23 | 1993-09-21 | Sumitomo Chemical Company, Limited | Polyvinyl chloride resin composition |
| CN106633604A (en) * | 2016-12-25 | 2017-05-10 | 合肥会通新材料有限公司 | Low-shrinkage ABS composite for solving problem of abnormal sound and preparation method thereof |
-
2018
- 2018-06-12 CN CN201810598461.1A patent/CN109021486A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5246991A (en) * | 1989-05-23 | 1993-09-21 | Sumitomo Chemical Company, Limited | Polyvinyl chloride resin composition |
| CN106633604A (en) * | 2016-12-25 | 2017-05-10 | 合肥会通新材料有限公司 | Low-shrinkage ABS composite for solving problem of abnormal sound and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄素逸等编著: "《采暖空调制冷手册》", 31 December 1996 * |
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