CN1793211A - Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation process thereof - Google Patents
Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation process thereof Download PDFInfo
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Abstract
The invention discloses a vehicle using high molding quantity filling sound insulation damping noise reduction sheet material and the manufacture method. It has good sound insulation and noise reduction function, and has simple technology. The raw material includes polyvinyl alcohol resin, coupler, lubricant and powder material that has Moh's hardness above 6 as high molding quantity material.
Description
Technical field
The present invention relates to a kind of sound-proof damping noise reduction sheet material and preparation method thereof, more specifically to a kind of Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation method thereof.
Background technology
Development along with China's national economy, living standards of the people are more and more higher, and car will become new consumption hotspot of China, in recent years, the consumption of domestic car and turnout rate of increase have surpassed 30%, than more than ten percentage point of annual growth Senior Two of the gross national product in the same year.But the car production technology level of China is with comparing very big gap in addition abroad.It is domestic in the large-scale popularization application of novel material new technology that an importance of this gap just shows.Therefore, we should tightly aim at external car novel material new technology, reduce gap, and the car production technology level of China is stepped to a new level.
Improve the three big impellents that car comfortableness, security and car lightweight are the development of car industrial technology, external each big motor corporation competitively releases new technology and improves security and the comfortableness that car travels, and wherein crucial measure is the application of new material technology.
The vibrations noise is the major issue that influences the car comfortableness, how to take effective sound insulation and noise reduction technology, is to reduce internal car noise, the important channel of improving the car load comfortableness.Because the seriousness of noise problem, people generally are placed on the auto sound noise reduction technology crucial position in the automobile product development process, and the auto sound noise abatement is one of important symbol of weighing a national auto manufacturing technology level.Therefore attach great importance to car sound insulation and noise reduction Study on Technology and exploitation both at home and abroad.
Be used for that the sound-insulating and heat-insulating de-noising pad is the important sound insulation and noise reduction product of a class under the Car carpet, it reaches the sound insulation shock-absorbing function by composite sound-absorbing, sound insulation, damping shock absorption system that noise reducing damping sheet material and polyurethane foam are formed jointly.Wherein, damping sheets mainly plays the sound-proof damping effect, and the polyurethane foam of open-celled structure mainly plays the sound-absorbing shock absorption.Generally speaking, the acoustic loss value of noise reducing damping sheet material can be according to the quality of materials (unit: kg/m of per unit area
2) define, the quality of materials of unit surface is big more, and the sound-insulating and heat-insulating effect is good more, that is to say, and the proportion of sheet material is big more, and its sound-insulating and heat-insulating effect is just good more.Mainly contain three classes at present:
Pitch intercepts sheet material: be that a kind of pitch is a large amount of inorganics filled sheet material of continuous items.This sheet material isolation-type is good, but the strength of materials is low, can't moulding, be used for the more smooth floor of truck or car more, and this material is at present domestic main automobile-used obstruct sheet material.
The soft obstruct sheet material of PVC base: this material is that a kind of usefulness is inorganics filled and with the thermoplasticity obstruct soft sheet material of the PVC of elasticizer plasticizing, because the proportion of polyvinyl chloride resin own is bigger, can prepare hyperbaric sheet material easily, but this material exists two big defectives: one, low molecular softening agent is easy to separate out, this can reduce the mechanical property of sheet material greatly, and two kinds of materials can not effectively bond when sheet material cast flexible PU foam layer; Its two, the difficult recovery of this sheet material, not environmental protection can be emitted a large amount of deleterious hydrogen chloride gas during burning, and produces carcinogenic substance.
Inorganics filled sound insulation sheet material: this sheet material is a kind of noise reducing damping heat insulation sheet that gets with inorganics filled vinyl polymer.Chinese patent CN1583864A discloses the preparation method of a kind of car with sound-proof damping noise reduction sheet material, but the sound insulation and noise reduction effect is not outstanding.The general production technique of this sound insulation sheet material is: use earlier the parallel dual-screw extruding machine granulation, use single spiro rod plasticizing extrusion sheet again, its shortcoming is: one, because inorganic loading level is big, and general technology is: earlier use the parallel dual-screw extruding machine granulation, use single spiro rod plasticizing extrusion sheet again, because of the easy moisture absorption of particle, difficult dry, make the single screw extrusion machine place of vacuumizing easily run material, volatile matter is taken out unclean, extrude instability, product surface has the water silk; They are two years old. because inorganic loading level is big, and general production technique, single screw extrusion machine is because must be along possessing the plasticizing function, and length-to-diameter ratio is big, and material fluidity is poor, and the sheet thickness that makes is inhomogeneous, and induction-motor load is big, and equipment attrition is big, product that can not the production wide cut; Its technical process is also comparatively complicated in addition.
Therefore, it is imperative with Noice insulation dumping noise reducing sheet material with high modulus material and method thereof to develop the good car of a kind of sound insulation and noise reduction performance.
Summary of the invention
The invention solves above-mentioned problems of the prior art and deficiency, a kind of Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation method thereof is provided, sheet material sound insulation and noise reduction effect of the present invention is good, and the preparation method can directly extrude the noise reducing damping heat insulation sheet, does not need the granulating drying.
The present invention is achieved by the following technical solutions:
Noice insulation dumping noise reducing sheet material with high modulus material for car of the present invention, include polyethylene matrix resin, coupling agent, lubricant in its raw material, also include high modulus material in addition in the raw material, described high modulus material is that Mohs' hardness is not less than 6 powder body material, a kind of or its combination in the preferred aluminium sesquioxide of described high modulus material, reduced iron powder or the silicon carbide.The reason that increases high modulus material is: the packing material modulus is high more in the sound-proof damping noise reduction sheet material, and the effect of its reflect sound is strong more, and its soundproof effect is just good more.
Noice insulation dumping noise reducing sheet material with high modulus material for car of the present invention, each weight percentages of components is optimized in its raw material: polyethylene matrix resin 14%～65%, coupling agent 0.4%～1.5%, lubricant 0.4%～0.8%, high modulus material 10%～70%, mineral filler 0%～70%, oxidation inhibitor 0～0.5%, dilution dispersion agent 0～0.6%; Each weight percentages of components further is optimized in the described raw material: polyethylene matrix resin 15%～65%, coupling agent 0.4%～1.5%, lubricant 0.4%～0.8%, high modulus material 10%～60%, mineral filler 20%～60%, oxidation inhibitor 0.10%～0.5%, dilution dispersion agent 0.3%～0.6%.The Masterbatch or the toner 0.04%～1.0% that also can contain weight percent in the described raw material of sheet material of the present invention in addition.
A kind of, several mixtures or several blended modifier in the ethylene-vinyl acetate copolymer that described polyethylene matrix resin is an all size, new LDPE (film grade), linear low new LDPE (film grade), ethylene propylene rubber, terpolymer EP rubber, the polyolefin elastomer; Described mineral filler is one or more the mixture in the ultra-fine or nano level lime carbonate of particle diameter below 25 μ m, talcum powder, barium sulfate, glass microballon, the quartz sand; Described coupling agent is one or more the mixture in titanate coupling agent, silane coupling agent, the aluminate coupling agent; Described lubricant is one or more the mixture in stearic acid, Ployethylene Wax, calcium stearate, the Zinic stearas; Described oxidation inhibitor is one or more the mixture in the single phenolic antioxidant of alkylation, the thiobisphenol kind antioxidant; Described dilution dispersion agent is a white oil.Wherein said titanate coupling agent is preferably three different fatty acyl group isopropyl titanates, isopropyl tri (dioctylphosphato)titanate or tetra isopropyl (dioctyl phosphorous acid ester); Described silane coupling agent is preferably γ-An Bingjisanyiyangjiguiwan or vinyl three t-butylperoxy silane; The single phenolic antioxidant of described alkylation is preferably antioxidant CA, antioxidant 2246, antioxidant 1010 or antioxidant 330; Described thiobisphenol kind antioxidant is preferably antioxidant 300, oxidation inhibitor 736, antioxidant 2246-S or oxidation inhibitor 4426-S.Antioxidant CA is 1,1,3-(2-methyl-4-hydroxyl-5-tertiary butyl) butane, antioxidant 2246 are 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol), antioxidant 1010 are four [β-(3,5-di-tert-butyl-hydroxy phenyl propionic acid)] tetramethylolmethane, antioxidant 300 is 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), oxidation inhibitor 736 are 4,4 '-thiobis (2-methyl-6-tert butyl phenol), antioxidant 2246-S are 2,2 '-thiobis (4-methyl-6-tert butyl phenol).
The preparation method of above-mentioned Noice insulation dumping noise reducing sheet material with high modulus material for car of the present invention, comprise that mainly raw material mixes, extrudes, passes through T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, cutting operation, the described operation of extruding is extruded for plastifying with the promptly two single screw rod extrusion sheet units of two steps type, but does not so just need granulating and drying direct plastication and extrusion sheet.
The preparation method of above-mentioned sheet material, its step is as follows:
A) the various raw materials that will prepare in proportion earlier carry out high-speed mixing and are warming up to 40-70 ℃;
B) entering the promptly two single screw rod sheet extruder group production lines of two steps type then extrudes;
C) then by T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, shearing, preparation sound-insulating and heat-insulating noise reduction sheet material.
The preparation method of Noice insulation dumping noise reducing sheet material with high modulus material for car of the present invention, its step further optimize as follows:
A) mineral filler that will prepare in proportion earlier and high modulus material and coupling agent, lubricant, oxidation inhibitor, dilution dispersion agent carry out being cooled to normal temperature after high-speed mixing is warming up to 40-70 ℃;
B), enter the promptly two single screw rod sheet extruder group production lines of two steps type and extrude again with after itself and macromolecule matrix resin and other subsidiary material high-speed mixing;
C) then by T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, shearing, preparation sound-insulating and heat-insulating noise reduction sheet material.
Among the preparation method of above-mentioned Noice insulation dumping noise reducing sheet material with high modulus material for car, its raw material enters two steps type sheet extruder group when extruding, processing parameter is as follows: the twin screw barrel temperature: the 1st section 110～165 ℃, the 2nd section 120～185 ℃, the 3rd section 130～200 ℃, the 4th section 130～200 ℃, the 5th section 130～200 ℃, the 6th section 130～200 ℃; Transition zone temperature: 130～200 ℃; Single screw cylinder temperature: the 1st section 130～200 ℃, the 2nd section 130～200 ℃; Barrier temperature: 130～200 ℃; Connect district's temperature: 130～200 ℃; Twin screw rotating speed: 150～450 rev/mins; 5～45 rev/mins of single screw speeds.
Beneficial effect of the present invention is as follows:
Noice insulation dumping noise reducing sheet material with high modulus material for car of the present invention has increased high modulus material in formula system improve a lot the sound insulation and noise reduction performance of sheet material, sheet material vacuum forming thermoforming performance of the present invention is good, with flexible PU foam the advantages of good caking property energy is arranged, under-40 ℃-40 ℃ condition, store and do not come off in six months, carry out the sound attenuating test, sound attenuating can reach 58.2%.
In the production technique of the present invention, the high two steps type of filling the sheet material extruding production line of two steps type (two single screw rod) is extruded in the unit, the parallel dual-screw extruding machine length-to-diameter ratio is bigger, effect is plasticizing, can make material heat, that plasticizing is good directly enter single screw extrusion machine, do not need the granulating drying, directly extrude the noise reducing damping heat insulation sheet.Production technique is simple simultaneously, extrudes to produce and stablizes, and sheet thickness is even, and dynamo-electric load and equipment attrition are little, and cost is low, and good economic benefits is arranged, and the product of production wide cut as required.
Description of drawings
Fig. 1 is a selection process flow process synoptic diagram of the present invention
Fig. 2 is a process flow diagram of the present invention
Embodiment
Below by specific embodiment explanation the present invention, but the present invention not merely is defined in these embodiment, the acoustic loss value of noise reducing damping sheet material can be according to the quality of materials (unit: kg/m of per unit area
2) define, the quality of materials of unit surface is big more, and the sound-insulating and heat-insulating effect is good more, that is to say, and the proportion of sheet material is big more, and its sound-insulating and heat-insulating effect is just good more; Employed raw material product and production unit see Table 2 among the embodiment, and processing unit sees Table 1.
Embodiment 1
It is stand-by accurately to take by weighing each raw material by each material component in the following table 3 respectively, earlier with mineral filler, high modulus material, lubricant, coupling agent, oxidation inhibitor and dilution dispersion agent be added to high-speed mixer (model is SHR-100A) high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature, again with after itself and the polyethylene matrix resin high-speed mixing, extrude with STJ80/180 two steps type (two single screw rod) extrusion sheet unit, its processing parameter is as follows: the twin screw barrel temperature: the 1st section 115 ℃, the 2nd section 125 ℃, the 3rd section 135 ℃, the 4th section 140 ℃, the 5th section 150 ℃, the 6th section 160 ℃; Transition zone temperature: 160 ℃; Single screw cylinder temperature: the 1st section 160 ℃, the 2nd section 160 ℃; Barrier temperature: 160 ℃; Connect district's temperature: 160 ℃; Twin screw rotating speed: 300 rev/mins; 20 rev/mins of single screw speeds.Then by T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, shearing, preparation sound-insulating and heat-insulating noise reduction sheet material, sheets of sizes is 1500*1000*1.5, and unit: mm. learns after testing: the angle tear strength of this sheet material is 25N/mm, and density is 1.28g/cm
3Vacuum forming thermoforming performance is good, with flexible PU foam the advantages of good caking property energy is arranged, and under-40 ℃-40 ℃ condition, stores and does not come off in six months, carries out the sound attenuating test, sound attenuating 32.8%.
Embodiment 2
By the method for each set of dispense of specified raw material in the following table 3, and in table 3, listed the result than repetition embodiment 1.
Embodiment 3
By each set of dispense of specified raw material in the following table 3 than the method that repeats embodiment 1, but its when extruding processing parameter as follows: the twin screw barrel temperature: the 1st section 125 ℃, the 2nd section 135 ℃, the 3rd section 140 ℃, the 4th section 150 ℃, the 5th section 155 ℃, the 6th section 165 ℃; Transition zone temperature: 165 ℃; Single screw cylinder temperature: the 1st section 165 ℃, the 2nd section 170 ℃; Barrier temperature: 170 ℃; Connect district's temperature: 170 ℃; Twin screw rotating speed: 250 rev/mins; 25 rev/mins of single screw speeds, and in table 3, listed the result.
Embodiment 4
, increased the subsidiary material colour batch in the raw material, and in table 3, listed the result than the method that repeats embodiment 3 by each set of dispense of specified raw material in the following table 3.
Embodiment 5
Press each set of dispense ratio of embodiment 2 raw materials, repeat to implement 2 method, different is when raw material mixes with all raw materials be added to together high-speed mixer (model is SHR-100A) high speed mix be warming up to 69 ℃ after, directly use STJ80/180 two steps type (two single screw rod) extrusion sheet unit to extrude then.Test result sound attenuating 34.1%.
Comparative Examples 1
Replace aluminium sesquioxide with 1250 purpose barium sulfate, other is with embodiment 1, and the test result sound attenuating is 23.8%, and effect obviously is worse than car Noice insulation dumping noise reducing sheet material with high modulus material of the present invention.
Table 1
| Sequence number | Device name | Specifications and models | Manufacturing enterprise |
| 1 | High-speed mixer | SHR-100A | Zhangjagang City's third contact of a total solar or lunar eclipse degraded |
| 2 | Two steps type extrusion sheet unit | STJ80/180 | Inferior plastics machinery company limited of Nanjing section |
| 3 | T shape die head | 2400 | Absolute sincerity mould company limited |
| 4 | Three-roll press-polishing, deflector roll cooling, side cut, traction, shearing | Wide by 2400 | Yongming, Changzhou plastics machinery company limited |
Table 2
| Sequence number | Name of material | Specifications and models | Production unit |
| 1 | Terpolymer EP rubber EPDM | 3722 | Dupont |
| 2 | Terpolymer EP rubber EPDM | 3640 | Dupont |
| 3 | Ethylene propylene rubber EPR | CO 034 | Italy ENI company |
| 3 | Polyolefin elastomer | POE8999 | DOW PUDONT company |
| 4 | Talcum powder | 1200 orders | Changxing county strong sound plasticizing filler company limited |
| 5 | Low density polyethylene | 2102TN00 | Qilu Petrochemical company |
| 6 | Linear low density polyethylene LLDPE | 7042 | Raise sub-petro-chemical corporation |
| 7 | Ethylene and vinyl acetate copolymer EVA | 7350M | Platform is moulded alkene company |
| 8 | Ethylene and vinyl acetate copolymer EVA | 18/3 | Beijing Organic Chemical Plant |
| 9 | Ethylene and vinyl acetate copolymer EVA | VA800 | The Hyundai oil company |
| 10 | Talcum powder | 1250 orders | Changxing county strong sound plasticizing filler company limited |
| 11 | Light calcium carbonate | 800 orders | Changzhou lime carbonate factory |
| 12 | Water-ground limestone | 800 orders | Changzhou lime carbonate factory |
| 13 | Barium sulfate | The 800-1250 order | Yuncheng Salt Chemistry Bureau, Shanxi Prov. |
| 14 | Silane coupling agent | KH-550 | Danyang morning twilight coupling agent company limited |
| 15 | Oxidation inhibitor | 1010 | Exhibition chemical industry company limited in the Nanjing |
| 16 | Calcium stearate | Calcium contents is not less than 6% | Rich welfare factory of Changzhou Su Global Suntech |
| 17 | Titanate coupling agent | CT-114 | Changzhou Tianrui commerce and trade company limited |
| 18 | Zinic stearas | Zinc content 10-11% | Rich welfare factory of Changzhou Su Global Suntech |
| 19 | Polyethylene wax | TL-4 | Chengdu is with devote every effort to help agent company limited |
| 20 | White oil | 15# | Yangzhong City damp daily use chemicals of silver company limited |
| 21 | Aluminium sesquioxide | The 200-300 order | Guizhou Aluminum Factory |
| 22 | Reduced iron powder | The 200-300 order | Laiwu novel material company limited |
| 23 | Silicon carbide | The 100-200 order | The new source of Donghai County mineral products company limited |
Table 3
| Raw material each component proportioning and sheet properties | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative Examples |
| Polyethylene matrix resin | 64.5% wherein: EVA (trade mark is 18/3) 15kg, LLDPE (trade mark is 7042) 17.25kg | 42.4% wherein: EVA (trade mark is 7350M) 10kg, EPDM (trade mark is 3722) 11.2kg | 18.6% wherein: EVA (trade mark is 1 8/3) 5kg, EPR, 4.3kg | 15% wherein: LDPE 2.5kg EPR 2.5kg EPDM (trade mark is 3640) 2.5kg | 64.5% wherein: EVA (trade mark is 1 8/3) 15kg, LLDP E (trade mark is 7042) 17.25kg |
| Mineral filler | 21% wherein: talcum powder 5kg, light calcium carbonate 5.5kg | 25% wherein: talcum powder 5kg, water-ground limestone 7.5kg | 20% wherein: talcum powder 5kg, barium sulfate 5kg | 60% wherein: talcum powder 15kg, light calcium carbonate 15kg | 33.5% wherein: talcum powder 5kg, light calcium carbonate 5.5kg, barium sulfate 6.25kg |
| High modulus material | 12.5% wherein: aluminium sesquioxide 6.25kg | 30% wherein: aluminium sesquioxide 5kg, silicon carbide 10kg | 60% wherein: aluminium sesquioxide 20kg, reduced iron powder 10kg | 22% wherein: aluminium sesquioxide 11kg | |
| Coupling agent | 0.7% wherein: titanate coupling agent 350g | 1.0% wherein: silane coupling agent 200g, titanate coupling agent 300g | 0.4% wherein: titanate coupling agent 200g | 1.4% wherein: titanate coupling agent 700g | 0.7% wherein: titanate coupling agent 350g |
| Lubricant | 0.5% wherein: polyethylene wax 250g | 0.8% wherein: Zinic stearas 400g | 0.6% wherein: calcium stearate 150g Zinic stearas 150g | 0.4% wherein: polyethylene wax 200g | 0.5% wherein: polyethylene wax 250g |
| Oxidation inhibitor | 0.4% wherein: antioxidant 1010,200g | 0.2% wherein: antioxidant 1010,100g | 0.1% wherein: antioxidant 1010,50g | 0.5% wherein: antioxidant 1010,250g | 0.4% wherein: antioxidant 1010,200g |
| The dilution dispersion agent | 0.4% wherein: white oil 200g | 0.6% wherein: white oil 300g | 0.3% wherein: white oil 150g | 0.4% wherein: white oil 200g | 0.4% wherein: white oil 200g |
| Masterbatch | 0.3％150g | ||||
| Sheet material proportion (g/cm 3) | 1.28 | 1.32 | 1.72 | 1.75 | 1.29 |
| Sound attenuating | 32.8％ | 41.7％ | 58.2％ | 47.4％ | 23.8％ |
| Angle tear strength (N/mm) | 25 | 21 | 17 | 16.5 | 24.5 |
Claims (11)
1, a kind of Noice insulation dumping noise reducing sheet material with high modulus material for car, include polyethylene matrix resin, coupling agent, lubricant in its raw material, it is characterized in that also including in the raw material high modulus material, described high modulus material is that Mohs' hardness is not less than 6 powder body material.
2, Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 1 is characterized in that described high modulus material is a kind of or its combination in aluminium sesquioxide, reduced iron powder or the silicon carbide.
3, Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 2, it is characterized in that each weight percentages of components is in the raw material: polyethylene matrix resin 14%～65%, coupling agent 0.4%～1.5%, lubricant 0.4%～0.8%, high modulus material 10%～70%, mineral filler 0%～70%, oxidation inhibitor 0～0.5%, dilution dispersion agent 0～0.6%.
4, Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 3, it is characterized in that each weight percentages of components is in the described raw material: polyethylene matrix resin 15%～65%, coupling agent 0.4%～1.5%, lubricant 0.4%～0.8%, high modulus material 10%～60%, mineral filler 20%～60%, oxidation inhibitor 0.10%～0.5%, dilution dispersion agent 0.3%～0.6%.
5, Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 4 is characterized in that also can containing in the described raw material Masterbatch or the toner 0.04%～1.0% of weight percent.
6,, it is characterized in that described polyethylene matrix resin is a kind of, several mixtures or several blended modifier in the ethylene-vinyl acetate copolymer of all size, new LDPE (film grade), linear low new LDPE (film grade), ethylene propylene rubber, terpolymer EP rubber, the polyolefin elastomer according to claim 3 or 4 described Noice insulation dumping noise reducing sheet material with high modulus material for car; Described mineral filler is one or more the mixture in the ultra-fine or nano level lime carbonate of particle diameter below 25 μ m, talcum powder, barium sulfate, glass microballon, the quartz sand; Described coupling agent is one or more the mixture in titanate coupling agent, silane coupling agent, the aluminate coupling agent; Described lubricant is one or more the mixture in stearic acid, Ployethylene Wax, calcium stearate, the Zinic stearas; Described oxidation inhibitor is one or more the mixture in the single phenolic antioxidant of alkylation, the thiobisphenol kind antioxidant; Described dilution dispersion agent is a white oil.
7, Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 6 is characterized in that described titanate coupling agent is three different fatty acyl group isopropyl titanates, isopropyl tri (dioctylphosphato)titanate or tetra isopropyl (dioctyl phosphorous acid ester); Described silane coupling agent is γ-An Bingjisanyiyangjiguiwan or vinyl three t-butylperoxy silane; The single phenolic antioxidant of described alkylation is antioxidant CA, antioxidant 2246, antioxidant 1010 or antioxidant 330; Described thiobisphenol kind antioxidant is antioxidant 300, oxidation inhibitor 736, antioxidant 2246-S or oxidation inhibitor 4426-S.
8, the preparation method of Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 1, comprise that mainly raw material mixes, extrudes, passes through T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, cutting operation, it is characterized in that the described operation of extruding is to plastify with the promptly two single screw rod extrusion sheet units of two steps type to extrude.
9, the preparation method of Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 8 is characterized in that step is as follows:
A) the various raw materials that will prepare in proportion earlier carry out high-speed mixing and are warming up to 40-70 ℃;
B) entering the promptly two single screw rod sheet extruder group production lines of two steps type then extrudes;
C) then by T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, shearing, preparation sound-insulating and heat-insulating noise reduction sheet material.
10, the preparation method of Noice insulation dumping noise reducing sheet material with high modulus material for car according to claim 9 is characterized in that step is as follows:
A) mineral filler that will prepare in proportion earlier and high modulus material and coupling agent, lubricant, oxidation inhibitor, dilution dispersion agent carry out being cooled to normal temperature after high-speed mixing is warming up to 40-70 ℃;
B), enter the promptly two single screw rod sheet extruder group production lines of two steps type and extrude again with after itself and macromolecule matrix resin and other subsidiary material high-speed mixing;
C) then by T shape die head, three-roll press-polishing, deflector roll cooling, side cut, traction, shearing, preparation sound-insulating and heat-insulating noise reduction sheet material.
11, according to the preparation method of claim 9 or 10 described Noice insulation dumping noise reducing sheet material with high modulus material for car, it is characterized in that raw material enters two steps type sheet extruder group when extruding, its processing parameter is as follows: the twin screw barrel temperature: the 1st section 110～165 ℃, the 2nd section 120～185 ℃, the 3rd section 130～200 ℃, the 4th section 130～200 ℃, the 5th section 130～200 ℃, the 6th section 130～200 ℃; Transition zone temperature: 130～200 ℃; Single screw cylinder temperature: the 1st section 130～200 ℃, the 2nd section 130～200 ℃; Barrier temperature: 130～200 ℃; Connect district's temperature: 130～200 ℃; Twin screw rotating speed: 150～450 rev/mins; 5～45 rev/mins of single screw speeds.
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