CN107163595A - A kind of composite magnetic attraction damping fin and its processing method - Google Patents
A kind of composite magnetic attraction damping fin and its processing method Download PDFInfo
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- CN107163595A CN107163595A CN201710397830.6A CN201710397830A CN107163595A CN 107163595 A CN107163595 A CN 107163595A CN 201710397830 A CN201710397830 A CN 201710397830A CN 107163595 A CN107163595 A CN 107163595A
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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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- 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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Abstract
The invention discloses a kind of composite magnetic attraction damping fin and its processing method, belong to car damping technical field.The component of the dispensing of the composite magnetic attraction damping fin of the present invention includes magnetic, the calcium powder of 200~300 parts by weight, the pitch of 70~80 parts by weight, the mica powder of 65~75 parts by weight, the asphalt modifier of 30~50 parts by weight, the softening agent of 8~12 parts by weight, the fiber of 3~5 parts by weight of 300~400 parts by weight.Processing method includes：Pitch softening → stirring → fiber crushes → calcium powder is added → the step of extruding tabletting.In dispensing, the consumption of pitch only accounts for less than 10%, during using into automobile, the generation of pernicious gas greatly reduces, removed after through ventilation after a while, most residual smell is removed again, so that the application risk of damping sheet is reduced, although there are the problem of low pernicious gas of pitch class damping sheet cost is more, substitute cost is high, Acceptable life is short so as to solve in the prior art.
Description
Technical field
The present invention relates to car damping technical field, more particularly to a kind of composite magnetic attraction damping fin and its processing side
Method.
Background technology
Shock material is widely used in weakening in automobile application vibration and the sound of road noise and engine.
For damping material, viscoelastic material is preferred.The damping effect related to the energy consumed in viscoelastic material with
The increase of the Young amount of touching and the loss factor of viscoelastic material and increase.Certainly, it is also as the deformation that material is born
Increase.Some materials have high loss factor but the low Young amount of touching, and it provides metallic plate limited damping, other materials
With the high Young amount of touching but relatively low loss factor (for example, rubber), it is not equally very good as damped part.It is good
Good damping material provides the compromise between the Young amount of touching and loss factor.
At present, most of automobiles use traditional pitch damping sheet, and pitch is a kind of organic material as a form of gel of brownish black, bag
Include four kinds of bitumen, asphalt, shale tar pitch and coal tar asphalt etc..In pitch and its flue gas main component be phenols,
Main component is phenols, compound, anthracene, naphthalene, pyridine etc. to mucocutaneous tool excitant, drip in compound, pitch and its flue gas
Blue or green damping sheet has stronger carcinogenesis to people, and this can endanger the health of personnel, therefore how reduce these harmful components
Influence is the eternal problem that technical staff faces.
Through retrieval, Chinese patent application, publication number：CN105602233A, publication date：2016.05.25, one kind is disclosed
Economic and environment-friendly high damping properties damping sheet, including following raw material：Polyurethane elastomer, flyash, mica, hydrogenation C5 oil trees
Fat, glass fibre, carbon black, antiaging agent, antioxidant, its mass ratio is：200-250；410-500；400-475；40-80；
4-10；20-100；5；5, the invention, as feature damping filler, is turned waste into wealth using waste coal ash, and uses environmental protection
Polyurethane replace harmful pitch, energy-saving and emission-reduction, ecological, environmental protective, production cost is low, and the cycle is short, production technology science, makes
Convenient, product has good damping, deadening, and damped coefficient is high, and ageing resistance ability is strong.But polyurethane, which is block, to be total to
Polymers, and the adhesion such as other materials such as mica (hard section), Petropols (soft segment) are poor, easily layering and cause effectively to use
Short life.
The content of the invention
1. the invention technical problem to be solved
For existing in the prior art, although pitch class damping sheet cost is low but pernicious gas is more, substitute cost is high, have
The problem of service life is short is imitated, the invention provides a kind of composite magnetic attraction damping fin and its processing method.It is by criticizing
Amount reduces asphalt content, optimizes other dispensing processing methods, reaches the purpose of reduction damping sheet application risk.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
A kind of composite magnetic attraction damping fin, the component of its dispensing include the magnetic of 300~400 parts by weight, 200~
The calcium powder of 300 parts by weight, the pitch of 70~80 parts by weight, the mica powder of 65~75 parts by weight, the pitch of 30~50 parts by weight change
Property agent, the softening agent of 8~12 parts by weight, the fiber of 3~5 parts by weight.In dispensing, the consumption of pitch only accounts for less than 10%, application
During into automobile, the generation of pernicious gas greatly reduces, and is removed after through ventilation after a while, then remove most
Smell is remained, so as to reduce the application risk of damping sheet.
Further technical scheme, calcium powder is the ultra-fine light calcium carbonate powder of 0.5~1 μm of particle diameter；Mica powder is 0.5~1 μm of particle diameter
Ultrafine mica powder, pitch is used cooperatively after two kinds of superfine powders and softening, can improve the bond strength with pitch (by ultra-fine
The polymerizing power of powder improves the adhesion with pitch), it is to avoid the layering after tabletting during use.
In further technical scheme, the manufacturing process of ultra-fine light calcium carbonate powder and ultrafine mica powder, pass through vacuum freeze drying
Technique is made, powder made from lyophilized technique, because its little particle and the blocks of formation can be in light crisp honeycombs
Shape structure, is that the obtained of superfine powder reduces grinding cost.
Further technical scheme, the making step of ultra-fine light calcium carbonate powder is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, filtered
Calcium carbonate coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 3: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
Further technical scheme, the making step of ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 2: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
Further technical scheme, quick freezing temperature is -38~-40 DEG C；The lyophilized process curve is：
A, temperature raising period：0 DEG C~100 DEG C of plate temperature, 5 DEG C/min of heating slope, 100 DEG C are kept for 20~30 minutes, are evacuated to
Within 100Pa；
B, soak：Plate temperature is cooled to 80~85 DEG C/min, is kept for 30~40 minutes, vacuum control is within 80Pa；
C, later stage：Plate temperature is cooled to 60~70 DEG C/min, is kept for 40~50 minutes, vacuum control is within 50Pa.
Further technical scheme, will be quick after asphalt modifier and/or the well mixed addition of softening agent in blend step
Progress is quick-frozen, and each composition is quickly positioned, it is to avoid layering.
Further technical scheme, when step 2 is mixed, the consumption that adds water is 2.5~3.0 times of coarse powder gross weight, is filled with reaching
Divide the purpose for absorbing mixing；Material spread into mould thickness be 5.0~6.0cm, improve sabot amount；In step 4 freeze-drying process,
Condenser temperature is controlled below -30 DEG C, you can reach the purpose for effectively catching water.
A kind of processing method of composite magnetic attraction damping fin, step is：
(1) pitch softens：Pitch input kneader heating softening is stirred into fluid；
(2) stir：By the input kneader stirring successively in order of asphalt modifier and softening agent；
(3) fiber is crushed：In step (2) whipping process, input kneader continues to stir after fiber is crushed；
(4) calcium powder is added：Calcium powder, magnetic, mica powder input kneader are continued to stir；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Further processing method, step (1), the mixing time of (3) are 5~10 minutes；Step (2) mixing time is 10
~20 minutes；Step (3) particle size after cracking is below 20 mesh；Step (4) mixing time 30~40 minutes.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that：
(1) in a kind of composite magnetic attraction damping fin of the invention, dispensing, the consumption of pitch only account for the 10% of gross weight with
Under, during using into automobile, in the limited space of automobile, the generation of pernicious gas greatly reduces, and passes through one section again after
The ventilation of time removes most residual smell, can substantially reduce the application risk of damping sheet in the car；
(2) a kind of composite magnetic attraction damping fin of the invention, ultrafine mica powder and ultra-fine light calcium carbonate powder, two kinds of ultrafine calciums
Pitch is used cooperatively after powder and softening, can improve with the bond strength of pitch (improved by the polymerizing power of superfine powder and
The adhesion of pitch), it is to avoid the layering during extrusion tabletting and use；
(3) a kind of composite magnetic attraction damping fin of the invention, powder made from lyophilized technique, due to its little particle and
The blocks of formation can be in light crisp alveolate texture, then when grinding to form super fine, easily grinding, its cost drops significantly
It is low；
(4) in a kind of composite magnetic attraction damping fin of the invention, ultrafine mica powder preparation process, due to main addition
Be Free water, it is less with reference to water, so, freeze-drying process is lyophilized compared to food and medicine, and its lyophilized cost is relatively small, from
Its yield rate is, it is apparent that the yield rate of frozen dried food is general below 10%, and ultrafine mica powder, light calcium carbonate powder is lyophilized
Prepare and may be up to more than 50%, or even 80%；
(5) a kind of composite magnetic attraction damping fin of the invention, in the lyophilized making of ultra-fine light calcium carbonate powder, can use city
Sell light calcium carbonate powder and carry out secondary lyophilized processing, its cost is at most doubled, it is therefore, ultra-fine light again below the cost of general pitch
Calcium powder substitutes part pitch, and one is reduction manufacturing cost, and two be that can reduce the generation of pernicious gas, and three are matched somebody with somebody with ultrafine mica powder
Close, improve the bond strength with pitch (to reach effective combination of organic matter and inorganic matter)；
(6) a kind of composite magnetic attraction damping fin of the invention, -38~-40 DEG C and quick freezing temperature are inventor's combinations
Calcium powder, the property of mica powder determine that when too high, ice crystal is poor to the piercing ability of particle, and the micropore produced after freezing is shallow and few；
When too low, although micropore depth and quantity can be improved, but production cost can be greatly improved；The setting of freeze-drying curve, is inventor
The targetedly design carried out with reference to the more attribute of Free water, 2 hours of whole freeze-drying process or so, freeze cost low；
(7) by the mixing of asphalt modifier and/or softening agent in composite magnetic attraction damping fin of the invention, step 2
Add, asphalt modifier and/or softening agent can be freezed positioning around micro mist, to improve in later stage whipping process and pitch
Combination, facilitate their effect rapid deployment, reduce the time of whole processing technology, it is to avoid aging of the pitch in stirring；
(8) processing method of a kind of composite magnetic attraction damping fin of the invention, mixing time is compared to conventional production
Method is greatly decreased, so as to reduce production cost, improves production efficiency.
Brief description of the drawings
Fig. 1 is the particle surface morphology analysis figure of obtained ultra-fine light calcium carbonate powder in the embodiment of the present invention 6；
Fig. 2 is schematic diagram after Fig. 1 again 2 times of amplifications；
Fig. 3 is the particle and pitch bonding state figure of the ultra-fine light calcium carbonate powder of the present invention.
Embodiment
To further appreciate that present disclosure, with reference to accompanying drawing, the present invention is described in detail.
Embodiment 1
The composite magnetic attraction damping fin of the present embodiment, the component of its dispensing include 300 kilograms magnetic, 300 kilograms
Calcium powder, 70 kilograms of mica powder, 80 kilograms of pitch, 30 kilograms of asphalt modifier (such as SBS styrene, EVA ethene-vinegar
Vinyl acetate copolymer), 8 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), 5 kilograms of fiber (such as flaxen fiber,
Aramid fiber).
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-80 pitches input kneader is warming up to 100 DEG C or so softenings, fluid is stirred into；
(2) stir：By SBS and vegetable oil, input kneader is stirred 10 minutes successively in order；
(3) fiber is crushed：In step (2) whipping process, flaxen fiber is crushed to after 16 mesh and puts into kneader continuation stirring
20 minutes；
(4) calcium powder is added：Calcium powder, magnetic, mica powder input kneader are continued to stir；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
In the present embodiment composite magnetic attraction damping fin dispensing, the consumption of pitch only accounts for 10% or so, using to automobile
When middle, the generation of pernicious gas greatly reduces, and is removed after through ventilation after a while, then remove most residue gas
Taste, so as to reduce the application risk of damping sheet.
Embodiment 2
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 1 is different and the improvement is that：
The component of its dispensing include 400 kilograms magnetic, the ultra-fine light calcium carbonate powder of 200 kilograms of 0.5~1 μm of particle diameters, 70 kilograms of particle diameters 0.5~
1 μm of ultrafine mica powder, 70 kilograms of pitch, 40 kilograms of asphalt modifier (such as SBS styrene, EVA ethene-vinyl acetates
Ester copolymer), 12 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), 3 kilograms of fiber (such as flaxen fiber, fragrant human relations
Fiber).
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-90 pitches input kneader is warming up to 110 DEG C or so softenings, fluid is stirred into；
(2) stir：By EVA and rubber oil, input kneader is stirred 10 minutes successively in order；
(3) fiber is crushed：In step (2) whipping process, flaxen fiber is crushed to after 20 mesh and puts into kneader continuation stirring
20 minutes；
(4) calcium powder is added：Magnetic, ultrafine mica powder and ultra-fine light calcium carbonate powder input kneader are continued to stir；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Pitch is used cooperatively after the present embodiment composite magnetic attraction damping fin, two kinds of ultra-fine calcium powders and softening, Ke Yiti
The bond strength (adhesion with pitch is improved by the polymerizing power of superfine powder) of high and pitch, it is to avoid used after tabletting
Layering in journey.But the grinding cost of two kinds of ultra-fine calcium powders is higher, causes the lifting of production cost.
Embodiment 3
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 1 is different and the improvement is that：
The component of its dispensing includes 350 kilograms of magnetic, the ultra-fine light calcium carbonate powder of 250 kilograms of 0.5~1 μm of particle diameters；70 kilograms of particle diameters 0.5~
1 μm of ultrafine mica powder, 70 kilograms of pitch, 30 kilograms of asphalt modifier (such as SBS styrene or EVA ethene-vinyl acetates
Ester copolymer), 8 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), (such as flaxen fiber, fragrant human relations are fine for 4 kilograms of fiber
Dimension), wherein：The procedure of processing of ultra-fine light calcium carbonate powder or ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder or light calcium carbonate powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 2: quick-frozen：Lyophilized presoma is tiled insert after mould -38~-40 DEG C or so quick freezing repository it is quick-frozen into
It is block；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultrafine mica powder or light calcium carbonate powder.
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-90 pitches input kneader is warming up to 110 DEG C or so softenings, fluid is stirred into；
(2) stir：By EVA and rubber oil, input kneader is stirred 10 minutes successively in order；
(3) fiber is crushed：In step (2) whipping process, flaxen fiber is crushed to after 20 mesh and puts into kneader continuation stirring
20 minutes；
(4) calcium powder is added：Obtained ultrafine mica powder will be freezed and ultra-fine light calcium carbonate powder, magnetic input kneader continue to stir
10 minutes；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Composite magnetic attraction damping fin made from the present embodiment, it is therein it is lyophilized after grind obtained ultra-fine light calcium carbonate powder and
Ultrafine mica powder has a micropore or micro- hole due to its surface, and the combination of pitch, softening agent and modifying agent fluid is even closer, big
On the premise of width reduction asphalt content, bond strength is greatly improved, and its damped coefficient is also correspondingly improved, and is subtracted with good
Shake, sound insulation and heat insulation effect.
Embodiment 4
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 1 is different and the improvement is that：
The component of its dispensing includes 300 kilograms of magnetic；The ultra-fine light calcium carbonate powder of 200 kilograms of 0.5~1 μm of particle diameters；65 kilograms of particle diameters 0.5~
1 μm of ultrafine mica powder, 75 kilograms of pitch, 30 kilograms of asphalt modifier (such as SBS styrene or EVA ethene-vinyl acetates
Ester copolymer), 12 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), 5 kilograms of fiber (such as flaxen fiber, fragrant human relations
Fiber), wherein：The procedure of processing of ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 2: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultrafine mica powder.
The making step of ultra-fine light calcium carbonate powder is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, filtered
Calcium carbonate coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 3: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-90 pitches input kneader is warming up to 110 DEG C or so softenings, fluid is stirred into；
(2) stir：By EVA and rubber oil, input kneader is stirred 10 minutes successively in order；
(3) fiber is crushed：In step (2) whipping process, flaxen fiber is crushed to after 20 mesh and puts into kneader continuation stirring
20 minutes；
(4) calcium powder is added：Magnetic, lyophilized obtained ultrafine mica powder and ultra-fine light calcium carbonate powder input kneader are continued to stir
10 minutes；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Composite magnetic attraction damping fin made from the present embodiment, ultra-fine light calcium carbonate powder is produced from raw material, and production cost can enter
One step is reduced.
Embodiment 5
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 4 is different and the improvement is that：
The component of its dispensing includes 400 kilograms of magnetic；The ultra-fine light calcium carbonate powder of 240 kilograms of 0.5~1 μm of particle diameters；70 kilograms of particle diameters 0.5~
1 μm of ultrafine mica powder, 70 kilograms of pitch, 30 kilograms of asphalt modifier (such as SBS styrene or EVA ethene-vinyl acetates
Ester copolymer), 10 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), 5 kilograms of fiber (such as flaxen fiber, fragrant human relations
Fiber), wherein：The procedure of processing of ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder, 10 kilograms of EVA, 3 kilograms of friction oil and water are sufficiently mixed as jelly
Dry presoma (during mixing, can also be mixed with homogenizer, effect is more preferable, but cost is high)；
Step 2: quick-frozen：Lyophilized presoma is tiled insert after mould -38 DEG C or so quick freezing repository it is quick-frozen into bulk,
Pu Pan Baidu is 5cm；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultrafine mica powder.
The making step of ultra-fine light calcium carbonate powder is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, filtered
Calcium carbonate coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, remaining EVA, friction oil and water are sufficiently mixed as lyophilized presoma；
Step 3: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert -38 DEG C or so quick freezing repositories after mould；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-90 pitches input kneader is warming up to 110 DEG C or so softenings, fluid is stirred into；
(2) fiber is crushed：In step (1) whipping process, flaxen fiber is crushed to after 10 mesh and puts into kneader continuation stirring
20 minutes；
(3) calcium powder is added：Magnetic, lyophilized obtained ultrafine mica powder and ultra-fine light calcium carbonate powder input kneader are continued to stir
5 minutes or so；
(4) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
By the mixed of asphalt modifier and softening agent in composite magnetic attraction damping fin, blend step made from the present embodiment
Close and add, asphalt modifier and/or softening agent can be freezed positioning around mica or fine particle calcium carbonate micro mist, to improve later stage stirring
During and pitch combination, facilitate their effect rapid deployment, reduce the time of whole processing technology, it is to avoid pitch is being stirred
Aging in mixing.
Embodiment 6
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 5 is different and the improvement is that：
The component of its dispensing includes the magnetic of 350 parts by weight；The ultra-fine light calcium carbonate powder of 280 kilograms of 0.5~1 μm of particle diameters；75 kilograms of particle diameters 0.5
~1 μm of ultrafine mica powder, 75 kilograms of pitch, 50 kilograms of asphalt modifier (such as SBS styrene or EVA ethyl vinyl acetate second
Enoate copolymer), 10 kilograms of softening agent (such as vegetable oil, rubber oil, friction oil), 5 kilograms of fiber (such as flaxen fiber, virtue
Human relations fiber), wherein：The procedure of processing of ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder, 10 kilograms of EVA and water are sufficiently mixed as lyophilized presoma (mixing
When, it can also be mixed with homogenizer, effect is more preferable, but cost is high)；
Step 2: quick-frozen：Lyophilized presoma is tiled insert after mould -38 DEG C or so quick freezing repository it is quick-frozen into bulk；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Lyophilized process curve is：
A, temperature raising period：0 DEG C~100 DEG C of plate temperature, 5 DEG C/min of heating slope, 100 DEG C are kept for 20~30 minutes, are evacuated to
Within 100Pa；
B, soak：Plate temperature is cooled to 85 DEG C/min, is kept for 30 minutes, vacuum control is within 80Pa；
C, later stage：Plate temperature is cooled to 70 DEG C/min, is kept for 40 minutes, vacuum control is within 50Pa.
D, export are made and are lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultrafine mica powder.
The making step of ultra-fine light calcium carbonate powder is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, filtered
Calcium carbonate coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, remaining EVA, friction oil and water are sufficiently mixed as lyophilized presoma；
Step 3: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert -40 DEG C or so quick freezing repositories after mould；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；The same mica of lyophilized technique
Powder；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder, swept using Flied emission
Face microscope carries out pattern and constituent analysis to powder body material, as illustrated in fig. 1 and 2, of obtained ultra-fine light calcium carbonate powder after grinding
The more or less deep or shallow micropore in grain surface.
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-80 pitches input kneader is warming up to 100 DEG C or so softenings, fluid is stirred into；
(2) fiber is crushed：In step (1) whipping process, flaxen fiber is crushed to after 10 mesh and puts into kneader continuation stirring
20 minutes；
(3) calcium powder is added：Magnetic, lyophilized obtained ultrafine mica powder and ultra-fine light calcium carbonate powder input kneader are continued to stir
5 minutes or so, experiment is diluted with water in the fluid after stirring, as shown in figure 3, taking precipitate carries out microscope to powder again
Material carries out pattern and constituent analysis, it is found that around particle in more or less pitch infiltration into microporous；Also indicate that pitch and
The combination degree of particle is improved；
(4) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Composite magnetic attraction damping fin made from the present embodiment, whole lyophilized technique process only 2 hours or so, production
Cost will not improve how much, moreover, after pitch infiltration into microporous, match the smell of the mica powder greatly improved, light calcium carbonate powder to pitch
Also there is a kind of slow releasing function, it is to avoid batch produces and produces harm to human body in the pernicious gas short time.
Embodiment 7
The composite magnetic attraction damping fin of the present embodiment, solvent and step be the same as Example 6, different and improvements
It is：Asphalt modifier and/or softening agent can be added respectively in blend step and step (2), to play it as far as possible
Effect, it is to avoid after all being applied in certain step, its decreased effectiveness.
Embodiment 8
The composite magnetic attraction damping fin of the present embodiment, basic ingredients be the same as Example 5 is different and the improvement is that：
The procedure of processing of ultrafine mica powder is：
Step 1: mixing：Commercially available mica powder, 14 kilograms of EVA and water are sufficiently mixed as lyophilized presoma (mixing
When, it can also be mixed with homogenizer, effect is more preferable, but cost is high)；The consumption that adds water is 2.5 times of coarse powder gross weight；
Step 2: quick-frozen：Lyophilized presoma is tiled insert after mould -38 DEG C or so quick freezing repository it is quick-frozen into bulk,
Balance thickness 6cm；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Lyophilized process curve is：
A, temperature raising period：0 DEG C~100 DEG C of plate temperature, 5 DEG C/min of heating slope, 100 DEG C are kept for 20 minutes, are evacuated to 100Pa
Within；
B, soak：Plate temperature is cooled to 80 DEG C/min, is kept for 40 minutes, vacuum control is within 80Pa；
C, later stage：Plate temperature is cooled to 60 DEG C/min, is kept for 50 minutes, vacuum control is within 50Pa.
D, export are made and are lyophilized into cellular block of material；
The condenser temperature of each step of freeze drying is controlled below -30 DEG C above；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultrafine mica powder.
The making step of ultra-fine light calcium carbonate powder is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, filtered
Calcium carbonate coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, friction oil and water are sufficiently mixed as lyophilized presoma；The consumption that adds water is
3 times of coarse powder gross weight；
Step 3: quick-frozen：Lyophilized presoma is tiled into mould, thickness is 5.0cm, insert -40 DEG C or so quick freezing repository speed
It is frozen into bulk；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；The same mica of lyophilized technique
Powder；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
The processing method of the present embodiment composite magnetic attraction damping fin, step is：
(1) pitch softens：AH-80 pitches input kneader is warming up to 100 DEG C or so softenings, fluid is stirred into；
(2) stir：By remaining EVA input kneader stirrings；
(3) fiber is crushed：In step (1) whipping process, flaxen fiber is crushed to after 10 mesh and puts into kneader continuation stirring
20 minutes；
(4) calcium powder is added：Magnetic, lyophilized obtained ultrafine mica powder and ultra-fine light calcium carbonate powder input kneader are continued to stir
5 minutes or so；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
Composite magnetic attraction damping fin made from the present embodiment, whole lyophilized technique process only 2 hours or so, production
Cost will not improve how much, moreover, after pitch infiltration into microporous, match the smell of the mica powder greatly improved, light calcium carbonate powder to pitch
Also there is a kind of slow releasing function, it is to avoid batch produces and produces harm to human body in the pernicious gas short time.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of composite magnetic attraction damping fin, it is characterised in that the component of its dispensing includes the magnetic of 300~400 parts by weight
Powder, the calcium powder of 200~300 parts by weight, the pitch of 70~80 parts by weight, the mica powder of 65~75 parts by weight, 30~50 parts by weight
Asphalt modifier, the softening agent of 8~12 parts by weight, the fiber of 3~5 parts by weight.
2. composite magnetic attraction damping fin according to claim 1, it is characterised in that：The calcium powder is particle diameter 0.5~1
μm ultra-fine light calcium carbonate powder；Mica powder is the ultrafine mica powder of 0.5~1 μm of particle diameter.
3. composite magnetic attraction damping fin according to claim 2, it is characterised in that：The ultra-fine light calcium carbonate powder and ultra-fine
In the manufacturing process of mica powder, it is made by vacuum freeze-drying technique.
4. composite magnetic attraction damping fin according to claim 3, it is characterised in that：The making of the ultra-fine light calcium carbonate powder
Step is：
Step 1: reactant is generated：Sodium carbonate and calcium chloride are subjected to metathesis reaction generation precipitation of calcium carbonate, carbonic acid is filtered to obtain
Calcium coarse powder；
Step 2: mixing：Calcium carbonate coarse powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 3: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 4: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 5: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
5. composite magnetic attraction damping fin according to claim 3, it is characterised in that：The making of the ultrafine mica powder
Step is：
Step 1: mixing：Commercially available mica powder, dispersant and water are sufficiently mixed as lyophilized presoma；
Step 2: quick-frozen：Lyophilized presoma is tiled, and it is quick-frozen into bulk to insert quick freezing repository after mould；
Step 3: lyophilized：Lump material push-in dry storehouse is carried out being lyophilized into cellular block of material；
Step 4: fine grinding：Cellular block of material is sent into grinder to carry out being finely ground to ultra-fine light calcium carbonate powder.
6. the composite magnetic attraction damping fin according to claim 4 or 5, it is characterised in that：The quick freezing temperature is -38
~-40 DEG C；The lyophilized process curve is：
A, temperature raising period：0 DEG C~100 DEG C of plate temperature, 5 DEG C/min of heating slope, 100 DEG C are kept for 20~30 minutes, are evacuated to 100Pa
Within；
B, soak：Plate temperature is cooled to 80~85 DEG C/min, is kept for 30~40 minutes, vacuum control is within 80Pa；
C, later stage：Plate temperature is cooled to 60~70 DEG C/min, is kept for 40~60 minutes, vacuum control is within 50Pa.
7. composite magnetic attraction damping fin according to claim 6, it is characterised in that：Pitch is changed in blend step
Property agent and/or softening agent is well mixed add after quickly carry out it is quick-frozen.
8. composite magnetic attraction damping fin according to claim 6, it is characterised in that：In the step of mixing, add water use
Measure as 2.5~3.0 times of coarse powder gross weight；Material spread into mould thickness be 5.0~6.0cm；In step 4 freeze-drying process, cold-trap
Temperature control is below -30 DEG C.
9. a kind of processing method according to any described composite magnetic attraction damping fin of claim 1 to 8, its feature exists
In：Step is：
(1) pitch softens：Pitch input kneader heating softening is stirred into fluid；
(2) stir：By the input kneader stirring successively in order of asphalt modifier and softening agent；
(3) fiber is crushed：In step (2) whipping process, input kneader continues to stir after fiber is crushed；
(4) calcium powder is added：Calcium powder, magnetic, mica powder input kneader are continued to stir；
(5) extrude：After stirring terminates, it is transferred to extruder extrusion and generates damping fin with to roll tablet.
10. the processing method of composite magnetic attraction damping fin according to claim 9, it is characterised in that：Step (1),
(3) mixing time is 5~10 minutes；Step (2) mixing time is 10~20 minutes；Step (3) particle size after cracking be 20 mesh with
Under；Step (4) mixing time 30~40 minutes.
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| CN105366702A (en) * | 2015-12-08 | 2016-03-02 | 四川亿欣新材料有限公司 | Production method of pharmaceutical-grade calcium carbonate |
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Application publication date: 20170915 |