CN106751687B - A kind of PC/ABS alloy material of noise-reduction and preparation method thereof - Google Patents
A kind of PC/ABS alloy material of noise-reduction and preparation method thereof Download PDFInfo
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- 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
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Abstract
The present invention relates to PC/ABS alloy materials of a kind of noise-reduction and preparation method thereof, include the component of following parts by weight content: polycarbonate resin 40~75, acrylonitrile-butadiene-styrene copolymer resin 15~55, high damping silicone rubber 5~20, antioxidant 0.1~1, it 0.1~1 part of lubricant, adds raw materials into mixing and blending machine and is mixed；Then gained mixture is fed into double screw extruder by weight-loss type feeder, granulation is blended through double screw extruder and obtains noise-reduction PC/ABS alloy material.The introducing of high damping silicone rubber improves the viscous-elastic behaviour of PC/ABS alloy, when noise risk occurs for plastic part, the mechanical energy of noise causes the interior friction of polymer segment, it dissipates to convert this some mechanical to the form of thermal energy, the risk that noise occurs for plastic part is reduced, achievees the purpose that noise-reduction；High-damping rubber improves the impact flexibility of PC/ABS alloy as toughener simultaneously.
Description
Technical field
The present invention relates to the field of polymers, more particularly, to a kind of PC/ABS alloy material of noise-reduction and its preparation side
Method.
Background technique
PC/ABS is a kind of high polymer alloy for being widely used in automobile interior decoration, but its product is being assembled and had been used for a long time
Cheng Zhonghui generated due to friction " " noise.Solution common at present, which is mainly included in assembling process, coats silicon
Oil, non-woven fabrics etc., although such methods can play the role of in a short time lubricate noise reduction, its manufacturing process is cumbersome, cost compared with
Height, and the noise reduction effect in long-term use process is difficult to ensure.
In addition, having the method by reducing PC/ABS alloy surface coefficient of friction also to realize the noise reduction of PC/ABS alloy.
The method of common reduction PC/ABS alloy surface coefficient of friction.For example the lubricant of silicone oil is added in PC/ABS alloy,
Although the method reduces the coefficient of friction of material in a short time, when used for a long time, silicone oil is easily precipitated, so as to cause noise reduction failure；
For another example by addition polytetrafluoroethylene (PTFE) be used as system lubricant, reduce PC/ABS alloy friction, but polytetrafluoroethylene (PTFE) and
PC, ABS poor compatibility, extruding pelletization is difficult, and article surface defect is serious.
Damping noise-reducing is another thinking of high molecular material noise-reduction, mainly utilizes high molecular viscoelastic property,
Thermal dissipation is converted for mechanical energy by the interior friction between polymer segment by the noise that vibration generates, to reach reduction
The purpose of noise.The damped coefficient tan δ of usual silicone rubber is 0.05-0.1, cannot achieve decrease of noise functions.
Chinese patent CN105820537A discloses a kind of PC/ABS alloy material of high weld strength, by 30-65 weight
Part polycarbonate, the Acrylnitrile-Butadiene-Styrenes of 15-40 parts by weight, 10-20 parts by weight styrene-propene
Lonitrile copolymer, the high glue powder of 3-5 parts by weight, the compatilizer of 1-5 parts by weight and 0.5-1 parts by weight processing aid composition.Preparation
Obtained alloy material can be in the application in automotive upholstery (such as instrument board instrument), household electrical appliance component, but the alloy
Material can not play the effect of noise-reduction.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of PC/ of noise-reduction
ABS alloy material and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of PC/ABS alloy material of noise-reduction, the component including following parts by weight content:
Polycarbonate resin 40~75, acrylonitrile-butadiene-styrene copolymer resin 15~55, high damping silicone rubber 5
~20, antioxidant 0.1~1,0.1~1 part of lubricant.
The high damping silicone rubber is by 85~95 parts of silicon rubber, and 2~5 parts of damping agents and 3~10 parts of white carbon blacks are close
The rubber that mixing is prepared is carried out in mill, control smelting temperature is 100~180 DEG C, and revolving speed is 30~100r/min, mixing
Time is 8~30min.
The rubber structure unit of the silicon rubber are as follows:
R1=-OH ,-CN,
Wherein n1=2~10, n2=1~5.
Siloxanes segment is soft segment, R2Segment is rigid chain segment, the R of substituent group1For high rigidity group, soft and hard segments
Structure design can guarantee silicon rubber damped coefficient with higher.
The damping agent be more alkoxy silanes, more butanone oximino silanes, more acetoxylsilanes, polyamines base silane,
One kind of multiamide base silane, polyisocyanate isopropenoxysilane, containing hydrogen silicone oil.
As preferred embodiment, high damping silicone rubber particle size is 100~1000nm, and weight average molecular weight is
100000-20000, rubber damping coefficient are 0.3~2.5.
Particularly preferred high damping silicone rubber partial size 200-700nm, weight average molecular weight 120000-180000, rubber resistance
Buddhist nun's coefficient is 0.5~2.5, and further preferred purpose is the PC/ABS items physical property in order to balance prepared noise-reduction.
If the excessive too small impact property for being unfavorable for improving PC/ABS of rubber size；Damped coefficient is too small, noise-reduction it is ineffective,
It is difficult to be embodied in practical applications, the excessive technology that will increase of damped coefficient realizes difficulty.
The molecular weight of the polycarbonate resin is 18000~32000, and glass transition temperature is 140~150 DEG C.
The relative molecular weight of the acrylonitrile-butadiene-styrene copolymer resin is 90000~185000, wherein
Butadiene weight percent content is 15~30%, and acrylonitrile weight percent content is 20~40%, styrene weight percent
It is 30~65% than content.
The antioxidant is 2,6 di tert butyl 4 methyl phenol, β-(3,5- di-t-butyl -4- hydroxy-pheny) third
Sour octadecyl ester, dilauryl thiodipropionate, distearyl thiodipropionate, three (2,4- di-tert-butyl-phenyl) phosphorous acid
One of ester, bis- (2,4- di-t-butyl) season tetrol diphosphites or pentaerythritol bis-phosphite two (octadecyl alcolol) ester or
It is several.
The lubricant is silane polymer, fatty acid salt, fatty acid amide, stearic acid, butyl stearate, oleoyl
The one or more of amine, ethylene bis stearamide or polyolefin-wax.
The preparation method of the PC/ABS alloy material of noise-reduction, using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder,
Noise-reduction PC/ABS alloy material particle is prepared.
The barrel temperature of the double screw extruder is 220~270 DEG C, and screw speed is 300~700rpm.
Addition has high-damping rubber with PC/ABS, improves the viscoelastic property of PC/ABS alloy, improves the damped coefficient of material,
And then achieve the purpose that plastics noise-reduction, on the other hand, high damping silicone rubber can also be used as the toughener of PC/ABS system, and
And high damping silicone rubber has the temperature region of wider glass transition, to make the PC/ABS obtained in wide temperature range
The impact flexibility of interior acquisition more temperature.
Compared with prior art, the thinking of PC/ABS system noise-reduction common at present is by reducing rubbing for material surface
Coefficient is wiped to realize, the common methods for reducing material surface coefficient of friction include adding the material of the lubricities such as silicone oil or PTFE
Material, but the disadvantages of technique is difficult to stability contorting, and article surface effect is poor after machine-shaping in these method manufacturing processes.This
The noise-reduction of PC/ABS alloy is realized in invention by addition high damping silicone rubber, and process for producing is simple, final plastics
The appearance of product is good, while the impact flexibility of PC/ABS alloy is improved.
The introducing of high damping silicone rubber improves the viscous-elastic behaviour of PC/ABS alloy, when noise risk occurs for plastic part
When, the mechanical energy of noise causes the interior friction of polymer segment, so that the form that this some mechanical can be converted into thermal energy is dissipated,
The risk that noise occurs for plastic part is reduced, achievees the purpose that noise-reduction；High-damping rubber is improved as toughener simultaneously
The impact flexibility of PC/ABS alloy.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Examples 1 to 5
The PC/ABS alloy material of Examples 1 to 5 noise-reduction, each component and content which includes
As shown in table 1；Wherein, it is 140 DEG C that the weight average molecular weight of PC resin, which is 22000g/mol glass transition temperature,；ABS resin is relatively heavy
Average molecular weight is 125,000g/mol, and wherein butadiene weight percent content is 25%, and acrylonitrile weight percent content is
25%, styrene weight percent content is 50%；The weight average molecular weight of high damping silicone rubber is 140000g/mol, rubber granule
Diameter is 400-500nm, damped coefficient 1.4；Antioxidant is the Irganox 168 of Ciba company；Lubricant is commercially available N, N-
Ethylene bis stearic acid amide.
High damping silicone rubber is to set silicon rubber, the more butanone oximino silanes of damping agent, white carbon black for 95:2:3 by weight
In mixer, control smelting temperature is 100 DEG C, revolving speed 100r/min, the rubber that mixing 30min is obtained,
The rubber structure unit of silicon rubber are as follows:
Wherein, Rl=-OH
n1=5, n2=2.
Siloxanes segment is soft segment, R2Segment is rigid chain segment, the R of substituent group1For high rigidity group, soft and hard segments
Structure design can guarantee silicon rubber damped coefficient with higher.
1 component of table and parts by weight
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| PC | 75 | 65 | 65 | 55 | 40 |
| ABS | 20 | 15 | 20 | 35 | 55 |
| High damping silicone rubber | 5 | 20 | 15 | 10 | 5 |
| Antioxidant | 0.2 | 0.2 | 0.3 | 0.5 | 0.1 |
| Lubricant | 0.3 | 0.3 | 0.4 | 0.5 | 0.2 |
The preparation method is as follows:
A. corresponding raw material is weighed according to 1 component of table and weight；
B. it and then first will be carried out in PC resin, ABS resin, high damping silicone rubber, antioxidant and mix lubricant blender
Mixing；
C. the mixture again obtained step b is blended by double screw extruder and is granulated, and noise-reduction PC/ABS is made and closes
Gold particle, the barrel temperature of extruder are 220~270 DEG C, and screw speed is 300~700rpm.
Embodiment 6
The present embodiment is related to a kind of noise-reduction PC/ABS alloy material, and preparation method is as follows:
A, corresponding raw material is weighed by following components and weight:
B, PC resin, ABS resin, high damping silicone rubber, antioxidant and lubricant are carried out in mixing and blending machine first
Mixing；
C, then mixture is blended by double screw extruder and is granulated, noise-reduction PC/ABS alloy particle is made, squeezed
The barrel temperature of machine is 220~270 DEG C out, and screw speed is 300~700rpm.
The relative molecular weight of PC resin is 18000g/mol, and glass transition temperature is 140 DEG C, for the PC of ester-interchange method synthesis
Resin；
ABS resin relative molecular weight is 120000g/mol, and wherein butadiene weight percent content is 20%, acrylonitrile
Weight percent content is 26%, and styrene weight percent content is 54%；
High damping silicone rubber molecular weight is 180000g/mol, and rubber size is 600~700nm, and damped coefficient 1.8 is high
It is that 85:5:10 is placed in mixer that damping silicon rubber is by silicon rubber, the more alkoxy silanes of damping agent, white carbon black by weight,
Controlling smelting temperature is 180 DEG C, revolving speed 30r/min, the rubber that mixing 8min is obtained,
The rubber structure unit of silicon rubber are as follows:
Wherein,
Rl=-CN,
n1=10, n2=5；
The Irganox 1010 of antioxidant Ciba company；
Lubricant is commercially available pentaerythrite stearic acid.
Embodiment 7
The present embodiment is related to a kind of noise-reduction PC/ABS alloy material, and preparation method is the same as embodiment 6, institute's difference
It is:
It stocks up according to following components and parts by weight:
The relative molecular weight of PC resin is 32000g/mol, and glass transition temperature is 150 DEG C, for the PC tree of phosgenation synthesis
Rouge；
ABS resin is the graft copolymer of acrylonitrile-butadiene-styrene (ABS) composition, relative molecular weight 185000g/
Mol, wherein butadiene weight percent content is 30%, and acrylonitrile weight percent content is 25%, styrene weight percent
It is 45% than content；
High damping silicone rubber molecular weight is 200000g/mol, rubber size 800-1000nm, damped coefficient 0.8, system
Preparation Method is same as Example 7；
Antioxidant is that the Irganox 1076 and Irganox 168 of antioxidant Ciba company are compounded, ratio 1:1；
Lubricant is methylene bis stearic amide and N, and N- ethylene bis stearic acid amide presses the mixture of 1:1.
Embodiment 8
Implementation result
For the noise reduction effect of the prepared noise reduction PC/ABS alloy plastic particle of cooperation evaluation, tried by plastic part noise
Machine is tested to evaluate the noise reduction effect of gained PC/ABS alloy, cardinal principle is that two pieces of plastic plates are respectively placed in testing machine or more
In two planes, wherein lower plane is stationary plane, and upper plane can do reciprocating friction movement, while upper plane can be with additional certain
Load, load counterweight is respectively 100g, 200g, 400g, 800g and 1600g, is equipped with sonic sensor in testing machine fixed bit.
It needs to carry out sound wave collection to the testing machine of dry run before test, and removes this acoustic wave segment in actual test.Final evaluation knot
Fruit is indicated with noise plague grade: without obvious noise under 1600g load, being then chosen as 1 grade；If 1600g load has obvious noise,
800g load is then evaluated as 2 without obvious noise；If 800g load has obvious noise, 400g load is then evaluated as without obvious noise
3；If 400g load has obvious noise, 200g load is then evaluated as 4 without obvious noise；If 200g load has obvious noise, 100g
Load is then evaluated as 5 without obvious noise；No rank is chosen as if having obvious noise under 100g load.
Noise reduction PC/ABS alloy material prepared by above embodiments 1~7 is molded into the bloom of 100mm*100mm*4mm
Then plate is graded by plastic part sound testing machine.In addition, referring to ISO527, ISO179, ISO178 standard testing
The physical property of PC/ABS alloy particle.
Test result is as shown in table 2:
The product coarsening time and test result of 2 Examples 1 to 7 of table
As shown in Table 2, after increasing damping silicon rubber, be prepared PC/ABS alloy generation noise risk at it is lower,
PC/ABS alloy has excellent physical property simultaneously.
Comparative example 1
The purpose of this comparative example is the dosage for studying high damping silicone rubber to noise-reduction PC/ABS alloy of the invention
The influence of material property；This comparative example is that the dosage of adjustment high damping silicone rubber on the basis of embodiment 4 is respectively 0,2,5,
10,20,25 parts by weight, and PC/ABS alloy material obtained is tested for the property using the method for embodiment 8, it is as a result as follows
Table 3:
Table 3
As shown in Table 3, high damping silicone rubber can play good toughening effect to noise-reduction PC/ABS alloy, especially
It is to have larger enhancing for the low-temperature flexibility of material.The optimum content range of high damping silicone rubber is 5-20 parts, works as high-damping
When the content of silicon rubber is lower than 5 parts, plastic part that PC/ABS alloy particle is prepared occur noise risk be it is larger, reach
Less than the effect of noise-reduction.When high damping silicone rubber content rises to 25 parts, the rigidity decline of material is obvious, whole invisible
It is bad.Therefore to ensure that material reaches ideal noise-reduction effect, material property, preferred high damping silicone rubber are combined
Parts by weight between 5-20.
Comparative example 2
This comparative example is that the damped coefficient of high damping silicone rubber is further studied on the Research foundation of comparative example 1 to this hair
The influence of bright noise-reduction PC/ABS alloy material performance；For the component and preparation method of this comparative example with embodiment 4, institute is different
Place is that the damped coefficient of the high damping silicone rubber of use is respectively 0.05,0.1,0.8,1.8,2.5 equally using embodiment
8 method is tested for the property PC/ABS alloy material obtained, as a result such as the following table 4:
Table 4
As shown in Table 4, the damped coefficient of selected silicon rubber significantly affects the noise reduction effect of PC/ABS alloy, when
When damped coefficient is lower (0.05,0.01), prepared PC/ABS alloy particle there are apparent noise occurrence risks, therefore
The damped coefficient of preferred high-damping rubber is 0.5-2.5.
Comparative example 3
This comparative example is that purpose is to study ABS resin butadiene content to the noise-reduction PC/ABS alloy physical property of preparation
Influence, the component and preparation method of this comparative example with embodiment 4, institute the difference is that, the butadiene ratios used for
15% and 55%, it is same that PC/ABS alloy material obtained is tested for the property using the method for embodiment 8, as a result such as following table
5:
Table 5
As shown in Table 5, when the butadiene content of selected ABS resin excessively high (55%), prepared noise-reduction PC/
The rigidity of ABS alloy material is insufficient, is in particular in that the tensile strength of alloy material and bending modulus are too low, considers actual use
In needs, preferred butadiene content be 15-30%.
In conclusion method of the invention is simple and easy, high damping silicone rubber is added to PC/ABS alloy by selecting
In, the viscous-elastic behaviour of PC/ABS alloy material can be effectively increased, the vibration mechanical energy that noise generates causes in PC/ABS system
The interior friction of polymer segment is changed into thermal dissipation, reduces the risk that noise occurs.The wherein damping system of high damping silicone rubber
Several and dosage significantly affects the noise reduction effect of noise-reduction PC/ABS, and on the other hand, high damping silicone rubber is also PC/
Effective toughener of ABS alloy can obtain the preferable noise-reduction PC/ABS of impact property under room temperature and low temperature (- 40 DEG C)
Alloy.
Embodiment 9
A kind of PC/ABS alloy material of noise-reduction, the component including following parts by weight content:
Polycarbonate resin 40, acrylonitrile-butadiene-styrene copolymer resin 55, high damping silicone rubber 5, antioxidant
0.1, lubricant 0.1.
High damping silicone rubber be silicon rubber, damping agent methyl tributanoximo silane, white carbon black are placed in by 92:3:5 it is close
In mill, control smelting temperature is 120 DEG C, revolving speed 50r/min, and mixing 12min mixing obtains.Wherein, the rubber knot of silicon rubber
Structure unit are as follows:
Wherein,
R1=-OH,
n1=2, n2=1.
Siloxanes segment is soft segment, R2Segment is rigid chain segment, the R of substituent group1For high rigidity group, soft and hard segments
Structure design can guarantee silicon rubber damped coefficient with higher.
High damping silicone rubber particle size is 100nm, and weight average molecular weight 100000, rubber damping coefficient is 0.3.Poly- carbon
The molecular weight of acid ester resin is 18000, and glass transition temperature is 140 DEG C.The phase of acrylonitrile-butadiene-styrene copolymer resin
It is 90000 to molecular weight, wherein butadiene weight percent content is 15%, and acrylonitrile weight percent content is 20%, benzene
Weight ethylene degree is 65%.
Antioxidant is 2,6 di tert butyl 4 methyl phenol, β-(3,5- di-t-butyl -4- hydroxy-pheny) propionic acid 18
Ester, lubricant are fatty acid amide.
The preparation method of the PC/ABS alloy material of noise-reduction, using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder,
The barrel temperature for controlling double screw extruder is 220 DEG C, screw speed 300rpm, and noise-reduction PC/ABS alloy is prepared
Material particles.
Embodiment 10
A kind of PC/ABS alloy material of noise-reduction, the component including following parts by weight content:
Polycarbonate resin 50, acrylonitrile-butadiene-styrene copolymer resin 35, high damping silicone rubber 10, antioxidant
0.5, lubricant 0.5.
It is 90 that high damping silicone rubber is by silicon rubber, damping agent tert-butyl triacetoxysilane, white carbon black by weight:
3:7 mixing is placed in mixer, and control smelting temperature is 150 DEG C, banbury rotating speed 60r/min, the rubber that mixing 15min is obtained
Glue.
The structure of silicon rubber is as follows,
Rl=-CN,
n1=10, n2=5.
The high damping silicone rubber particle size being prepared is 1000nm, weight average molecular weight 200000, rubber damping system
Number is 2.5.The molecular weight of polycarbonate resin is 32000, and glass transition temperature is 150 DEG C.Acrylonitrile-styrene-butadiene is total
The relative molecular weight of copolymer resin is 185000, and wherein butadiene weight percent content is 30%, acrylonitrile weight percent
Content is 40%, and styrene weight percent content is 30%.Antioxidant is dilauryl thiodipropionate, and lubricant is oleoyl
Amine.
The preparation method of the PC/ABS alloy material of noise-reduction, using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder,
The barrel temperature of double screw extruder is 270 DEG C, screw speed 700rpm, and noise-reduction PC/ABS alloy material is prepared
Particle.
Embodiment 11
A kind of PC/ABS alloy material of noise-reduction, the component including following parts by weight content:
Polycarbonate resin 65, acrylonitrile-butadiene-styrene copolymer resin 25, high damping silicone rubber 8, antioxidant
0.8, lubricant 0.8.
High damping silicone rubber is that the silicon rubber in embodiment 9 is carried out mixing system with damping agent and white carbon black on mixer
Standby to obtain, partial size 200nm, weight average molecular weight 120000, rubber damping coefficient is 0.5, and the molecular weight of polycarbonate resin is
18000, glass transition temperature is 140 DEG C.The relative molecular weight of acrylonitrile-butadiene-styrene copolymer resin is 100000,
Middle butadiene weight percent content is 15%, and acrylonitrile weight percent content is 40%, styrene weight percent content
It is 45%.Antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters, bis- (2,4- di-t-butyl) season tetrol diphosphites
Mixture.Lubricant is the mixture of oleamide, ethylene bis stearamide.
The preparation method of the PC/ABS alloy material of noise-reduction, using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder,
The barrel temperature for controlling double screw extruder is 240 DEG C, screw speed 400rpm, and noise-reduction PC/ABS alloy is prepared
Material particles.
Embodiment 12
A kind of PC/ABS alloy material of noise-reduction, the component including following parts by weight content:
Polycarbonate resin 75, acrylonitrile-butadiene-styrene copolymer resin 15, high damping silicone rubber 20, antioxidant
1,1 part of lubricant.
High damping silicone rubber is that the silicon rubber in embodiment 10 is carried out mixing with damping agent and white carbon black on mixer
It is prepared, partial size 700nm, weight average molecular weight 180000, rubber damping coefficient is 2.5, the molecular weight of polycarbonate resin
It is 32000, glass transition temperature is 150 DEG C.The relative molecular weight of acrylonitrile-butadiene-styrene copolymer resin is 100000,
Wherein butadiene weight percent content is 15%, and acrylonitrile weight percent content is 40%, and styrene weight percent contains
Amount is 45%.Antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters, bis- (2,4- di-t-butyl) season tetrol diphosphorous acids
The mixture of ester.Lubricant is the mixture of oleamide, polyolefin-wax.
The preparation method of the PC/ABS alloy material of noise-reduction, using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder,
The barrel temperature for controlling double screw extruder is 260 DEG C, screw speed 600rpm, and noise-reduction PC/ABS alloy is prepared
Material particles.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (11)
1. a kind of PC/ABS alloy material of noise-reduction, which is characterized in that the component including following parts by weight content:
Polycarbonate resin 40~75, acrylonitrile-butadiene-styrene copolymer resin 15~55, high damping silicone rubber 5~
20, antioxidant 0.1~1, lubricant 0.1~1；
It is that 85~95:2~5:3~10 is mixed that the high damping silicone rubber is by silicon rubber, damping agent, white carbon black by weight
It is placed in mixer, control smelting temperature is 100~180 DEG C, and banbury rotating speed is 30~100r/min, and 8~30min of mixing is obtained
The rubber arrived, the rubber structure unit of the silicon rubber are as follows:
Wherein n1=2~10, n2=1~5.
2. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the damping agent
For more alkoxy silanes, more butanone oximino silanes, more acetoxylsilanes, polyamines base silane, multiamide base silane, polyisocyanate propylene
Oxysilane, the one type of containing hydrogen silicone oil.
3. a kind of PC/ABS alloy material of noise-reduction described in any one of -2 according to claim 1, which is characterized in that institute
The particle size for the high damping silicone rubber stated is 100~1000nm, weight average molecular weight 100000-200000, rubber damping system
Number is 0.3~2.5.
4. a kind of PC/ABS alloy material of noise-reduction described in any one of -2 according to claim 1, which is characterized in that institute
The particle size for the high damping silicone rubber stated is 200~700nm, weight average molecular weight 120000-180000, rubber damping coefficient
It is 0.5~2.5.
5. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the poly- carbonic acid
The molecular weight of ester resin is 18000~32000, and glass transition temperature is 140~150 DEG C.
6. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the propylene
Nitrile-styrene-butadiene copolymer resin relative molecular weight is 90000~185000, and wherein butadiene weight percent contains
Amount is 15~30%, and acrylonitrile weight percent content is 20~40%, and styrene weight percent content is 30~65%.
7. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the antioxidant
For 2,6 di tert butyl 4 methyl phenol, β-(3,5- di-t-butyl -4- hydroxy-pheny) propionic acid octadecyl ester, thio-2 acid two
Lauryl, distearyl thiodipropionate, three (2,4- di-tert-butyl-phenyl) phosphite esters, bis- (2,4- di-t-butyl) Ji Si
One or more of alcohol diphosphites or pentaerythritol bis-phosphite two (octadecyl alcolol) ester.
8. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the lubricant
For the one or more of silane polymer, fatty acid salt, fatty acid amide, stearic acid, butyl stearate or polyolefin-wax.
9. a kind of PC/ABS alloy material of noise-reduction according to claim 1, which is characterized in that the lubricant
It is one or two kinds of in oleamide or ethylene bis stearamide.
10. the preparation method of the PC/ABS alloy material of noise-reduction as described in claim 1, which is characterized in that this method
Using following steps:
A, raw material is added in mixing and blending machine by formula and is mixed；
B, gained mixture is fed into extruder by weight-loss type feeder, is blended and is granulated using double screw extruder, preparation
Obtain noise-reduction PC/ABS alloy material particle.
11. a kind of preparation method of the PC/ABS alloy material of noise-reduction according to claim 10, which is characterized in that
The barrel temperature of the double screw extruder is 220~270 DEG C, and screw speed is 300~700rpm.
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| WO2020162494A1 (en) * | 2019-02-07 | 2020-08-13 | 日油株式会社 | Resin composition, thermoplastic resin composition, and thermoplastic resin molding |
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| CN111253734B (en) * | 2020-01-23 | 2022-08-05 | 上海锦湖日丽塑料有限公司 | High-damping heat-aging-resistant polyamide composition and preparation method thereof |
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