CN110511496A - A kind of tack gradient damping material and preparation method thereof - Google Patents
A kind of tack gradient damping material and preparation method thereof Download PDFInfo
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- CN110511496A CN110511496A CN201910881166.1A CN201910881166A CN110511496A CN 110511496 A CN110511496 A CN 110511496A CN 201910881166 A CN201910881166 A CN 201910881166A CN 110511496 A CN110511496 A CN 110511496A
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- damping material
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- tack
- magnetic
- reinforced filling
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- 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
- C08K2201/01—Magnetic additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a kind of tack gradient damping materials and preparation method thereof, it includes: 90~110 parts of butyl rubber, 50~100 parts of the first reinforced filling, 100~150 parts of liquid tackifiers and 50~150 parts of coated magnetic filler by weight, and a kind of coated magnetic filler is made of magnetic material and carboxylic styrene butadiene latex, the second reinforced filling and vulcanization aid.The present invention is by forming coated magnetic filler after magnetic material is carried out package processing, coated magnetic filler is mixed with butyl rubber again, effectively improve compatibility of the magnetic material in butyl rubber, it plays magnetic material simultaneously to be isolated with butyl rubber, improves dispersibility and uniformity of the magnetic material in butyl rubber；Cooperate the double field devices of external warm magnetic again, so that magnetic material distribution gradient, effectively increases the damping capacity of material and widened effective damping temperature range.
Description
Technical field
The present invention relates to sound insulating material technical fields, more particularly, to a kind of tack gradient damping material and its preparation side
Method.
Background technique
An important branch of the rubber damping material as polymer damping material, will towards high-damping peak value, wide temperature range,
Intelligent, industrialization direction is developed.And the traditional handicraft for making rubber damping material is using directly blending, copolymerization, filling etc.
Method, though simply to widen damping temperature domain effect unobvious for technique.
Novel damping material with wide-temperature range has inierpeneirating network structure damping material, gradient damping material.Inierpeneirating network structure
Damping material had not only been easy to get higher damping value but also had been easy to get to wider damping temperature domain, but in terms of being applied to coating mostly,
In terms of being rarely applied to structural material, and the synthesis technology of inierpeneirating network structure damping material is complicated, and solvent removal is difficult, at
This is higher.And have the damping material of more distributions or gradient distribution structure then can preferably reconcile damping capacity and material other make
With performance, gradient damping material is prepared using functional small organic molecule and damping materials, by structure and performance consecutive variations
Component organically combine in a material, be widen temperature range a kind of preferable solution.
Summary of the invention
Based on this, the purpose of the present invention is to provide a kind of tack gradient damping material and preparation method thereof, structures
It is that magnetic material through-thickness uniform gradient is allowed to be distributed, forms the change of gradient in structure and performance, there is preparation method letter
The advantages that list, at low cost, continuous industrial production, damping is good.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of tack gradient damping material,
Include: by weight including it 90~110 parts of butyl rubber, 50~100 parts of the first reinforced filling, liquid tackifiers 100~
150 parts and 50~150 parts of coated magnetic filler, the coated magnetic filler is by magnetic material and carboxylic styrene butadiene latex, the second benefit
Strong filler and vulcanization aid composition, wherein the weight ratio of magnetic material and carboxylic styrene butadiene latex is 1:1.5 ~ 2.0, the second reinforcement
Filler accounts for 2~5wt% of coated magnetic filler total weight, and vulcanization aid accounts for 1~3wt% of coated magnetic filler total weight.
A kind of preparation method of tack gradient damping material comprising following steps,
Prepare raw material: the magnetic fillers that weight ratio is 1:1.5~2.0 being mixed into composition mixture with carboxylic styrene butadiene latex, by weight
Amount percentage weighs the mixture of 92 ~ 97wt %, the first reinforced filling of 2~5wt% and the vulcanization aid of 1~3wt% respectively, standby
With；
Mixed fillers: the mixture got ready, the first reinforced filling and vulcanization aid are sequentially added to ultrasonic emulsification disperser
It is interior, and uniformly mixed in ultrasonic emulsification disperser, form the coprecipitated material that is demulsified；
Prepare coated magnetic filler: the coprecipitated material that will be demulsified, which is placed in baking oven, to be heated, so that the coprecipitated material that is demulsified cures in baking oven,
Finally the coprecipitated material of demulsification after vulcanization is placed in ball mill and carries out ball-milling treatment, forms coated magnetic filler；
Be kneaded: weigh by weight 90~110 parts of butyl rubber, 50~100 parts of the first reinforced filling, liquid tackifiers 100~
150 parts and 50~150 parts of coated magnetic filler, butyl rubber, the first reinforced filling, liquid thickening are sequentially added in kneader
Agent and coated magnetic filler are kneaded to form rubber compound；
Magnetize: it is semi-finished product tack gradient damping material that rubber compound, which is placed in extrusion molding in extruder, and certainly by semi-finished product
Velocity gradient damping material is placed in magnet charger；
Finished product: semi-finished product tack gradient damping material is placed in the double field devices of warm magnetic, the damping of finished self-adhesive gradient is obtained
Material.
In conclusion a kind of tack gradient damping material of the present invention and preparation method thereof is by wrapping magnetic material
Coated magnetic filler is formed after wrapping up in processing, then coated magnetic filler is mixed with butyl rubber, magnetic material is effectively improved and exists
Compatibility in butyl rubber, while playing magnetic material and being isolated with butyl rubber, magnetic material is improved in butyl rubber
Interior dispersibility and uniformity；Cooperate the double field devices of external warm magnetic again, so that thickness direction of the magnetic material along butyl rubber
Distribution gradient effectively increases the damping capacity of tack gradient damping material and has widened effective damping temperature range.
Detailed description of the invention
Fig. 1 is the structure principle chart of the double field devices of the warm magnetic of the present invention.
Specific embodiment
To further understand the features of the present invention, technological means and specific purposes achieved, function, below with reference to
Present invention is further described in detail for specific embodiment.
A kind of tack gradient damping material of the present invention includes: 90~110 parts of butyl rubber, the first benefit by weight
Strong 50~100 parts of filler, 100~150 parts of liquid tackifiers and 50~150 parts of coated magnetic filler, the coated magnetic filler
It is made of magnetic material and carboxylic styrene butadiene latex, the second reinforced filling and vulcanization aid, wherein magnetic material and carboxy styrene-butadiene rubber
The weight ratio of cream is 1:1.5 ~ 2.0, and the second reinforced filling accounts for 2~5wt% of coated magnetic filler total weight, and vulcanization aid accounts for packet
Wrap up in 1~3wt% of magnetic fillers total weight.
The coated magnetic filler carries out ball-milling treatment by ball mill in one of the embodiments, and coated magnetic is filled out
The partial size of material is greater than 400 mesh.
The liquid tackifiers are the polyisobutene that average molecular weight is 800 ~ 30000, are used for so that this product damps material
Material achievees the effect that tack, and first reinforced filling and the second reinforced filling are in light calcium, barium sulfate, carbon black or white carbon black
It is one or more, for being wrapped in damping material, to improve the intensity of damping material mechanics；The magnetic material is iron
One of powder, metallic cerium powder, samarium sesquioxide powder or Nd-Fe-B powder etc., the vulcanization aid include vulcanizing agent and promotion
Agent, wherein the weight ratio of vulcanizing agent and promotor is 1.0:1.0 ~ 2.5, and vulcanizing agent is sulphur, the choice of accelerator accelerant CZ or
One of rubber accelerator DM.
A kind of tack gradient damping material of the present invention is by mixing magnetic material with carboxylic styrene butadiene latex, to magnetic
Property material carries out package processing, improves compatibility of the magnetic material in butyl rubber, while by magnetic material and butyl rubber
Glue is directly isolated, to improve dispersibility and uniformity of the magnetic material in butyl rubber.
According to a kind of tack gradient damping material of aforementioned present invention, the present invention provides a kind of tack gradient damping material
Preparation method, tack gradient damping material involved in this method can be with above-mentioned tack gradient damping material embodiment
The technical characteristic of elaboration is identical, and can generate identical technical effect.The preparation method of tack gradient damping material of the present invention
By the way that magnetic material is carried out to form coated magnetic filler after package processing by carboxylic styrene butadiene latex, then by coated magnetic filler
It is mixed with butyl rubber, effectively improves compatibility of the magnetic material in butyl rubber, while playing magnetic material and butyl
Rubber is isolated, and dispersibility and uniformity of the magnetic material in butyl rubber are improved；The double fields of external warm magnetic are cooperated to set again
It is standby, so that thickness direction distribution gradient of the magnetic material along butyl rubber, effectively increases tack gradient damping material
Damping capacity and effective damping temperature range is widened.
A kind of preparation method of tack gradient damping material of the present invention, includes the following steps:
Prepare raw material: the magnetic fillers that weight ratio is 1:1.5~2.0 being mixed into composition mixture with carboxylic styrene butadiene latex, by weight
Amount percentage weighs the mixture of 92 ~ 97wt %, the first reinforced filling of 2~5wt% and the vulcanization aid of 1~3wt% respectively, standby
With；Wherein, the first reinforced filling is one of light calcium, barium sulfate, carbon black or white carbon black or a variety of；
Mixed fillers: the mixture got ready, the first reinforced filling and vulcanization aid are sequentially added to ultrasonic emulsification disperser
It is interior, and 10 ~ 20min is uniformly mixed in ultrasonic emulsification disperser under 20k ~ 28kHz frequency, form the coprecipitated material that is demulsified；
It prepares coated magnetic filler: the coprecipitated material that is demulsified being placed in the baking oven that operating temperature is 150~170 DEG C, heating 5 ~
The coprecipitated material of demulsification after vulcanization is finally placed in by 20min so that curing under hot-air environment of the coprecipitated material in baking oven that be demulsified
Ball-milling treatment is carried out in ball mill, forms coated magnetic filler；
Be kneaded: weigh by weight 90~110 parts of butyl rubber, 50~100 parts of the first reinforced filling, liquid tackifiers 100~
150 parts and 50~150 parts of coated magnetic filler, butyl rubber, the first reinforced filling, liquid thickening are sequentially added in kneader
Agent and coated magnetic filler are kneaded 20 ~ 30min and form rubber compound；Wherein, the milling work temperature of kneader is 100 ~ 120 DEG C；
Magnetize: it is semi-finished product tack gradient damping material that rubber compound, which is placed in extrusion molding in extruder, and certainly by semi-finished product
Velocity gradient damping material is placed in 3 ~ 5s in magnet charger, so that coated magnetic filler obtains magnetic effect；Wherein, extruder is crowded
Forming temperature is 120 ~ 150 DEG C out, and magnet charger is the model ME-10400 of door lattice magnetoelectricity science and technology (Shanghai) Co., Ltd. production
Magnet charger；
Finished product: semi-finished product tack gradient damping material is placed in the double field devices of warm magnetic, the damping of finished self-adhesive gradient is obtained
Material；Wherein, as shown in Figure 1, the double field devices of the temperature magnetic include cabinet 10, heating chamber 11, institute are provided in the cabinet 10
The temperature for stating heating chamber 11 is 100 ~ 150 DEG C, is cured or hardened to avoid semi-finished product tack gradient damping material and influences to wrap
Wrap up in the mobility of magnetic fillers inside it；It is provided with magnet 20 in the heating chamber 11, to provide magnetic field, so that coated magnetic
Filler under the magneticaction of magnet 20 along the thickness direction of semi-finished product tack gradient damping material from top to bottom, it is more by few change
Distribution gradient effectively increases the damping capacity of finished self-adhesive gradient damping material 30 and has widened effective damping temperature range.
Hot air apparatus is provided in the heating chamber 11 in one of the embodiments, the hot air apparatus includes heating
Device and exhaust fan, the heater control the temperature in heating chamber 11 at 100 ~ 150 DEG C, and the exhaust fan heats heater
Air be sent in heating chamber 11.
The magnetic field strength that the magnet 20 generates in one of the embodiments, is 2 ~ 10A/m2。
In conclusion a kind of tack gradient damping material of the present invention and preparation method thereof is by wrapping magnetic material
Coated magnetic filler is formed after wrapping up in processing, then coated magnetic filler is mixed with butyl rubber, magnetic material is effectively improved and exists
Compatibility in butyl rubber, while playing magnetic material and being isolated with butyl rubber, magnetic material is improved in butyl rubber
Interior dispersibility and uniformity；Cooperate the double field devices of external warm magnetic again, so that thickness direction of the magnetic material along butyl rubber
Distribution gradient effectively increases the damping capacity of tack gradient damping material and has widened effective damping temperature range.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitation of the scope of the invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of tack gradient damping material, which is characterized in that it includes: 90~110 parts of butyl rubber, by weight
One 50~100 parts of reinforced filling, 100~150 parts of liquid tackifiers and 50~150 parts of coated magnetic filler, the coated magnetic
Filler is made of magnetic material and carboxylic styrene butadiene latex, the second reinforced filling and vulcanization aid, wherein magnetic material and carboxyl fourth
The weight ratio of benzene latex is 1:1.5 ~ 2.0, and the second reinforced filling accounts for 2~5wt% of coated magnetic filler total weight, vulcanization aid
Account for 1~3wt% of coated magnetic filler total weight.
2. a kind of tack gradient damping material according to claim 1, it is characterised in that: the liquid tackifiers are flat
The polyisobutene that average molecular weight is 800 ~ 30000.
3. a kind of tack gradient damping material according to claim 1, it is characterised in that: first reinforced filling and
Second reinforced filling is one of light calcium, barium sulfate, carbon black or white carbon black or a variety of.
4. a kind of tack gradient damping material according to claim 1, it is characterised in that: the magnetic material is iron
One of powder, metallic cerium powder, samarium sesquioxide powder or Nd-Fe-B powder.
5. a kind of preparation method of tack gradient damping material, which is characterized in that include the following steps,
Prepare raw material: the magnetic fillers that weight ratio is 1:1.5~2.0 being mixed into composition mixture with carboxylic styrene butadiene latex, by weight
Amount percentage weighs the mixture of 92 ~ 97wt %, the first reinforced filling of 2~5wt% and the vulcanization aid of 1~3wt% respectively, standby
With；
Mixed fillers: the mixture got ready, the first reinforced filling and vulcanization aid are sequentially added to ultrasonic emulsification disperser
It is interior, and uniformly mixed in ultrasonic emulsification disperser, form the coprecipitated material that is demulsified；
Prepare coated magnetic filler: the coprecipitated material that will be demulsified, which is placed in baking oven, to be heated, so that the coprecipitated material that is demulsified cures in baking oven,
Finally the coprecipitated material of demulsification after vulcanization is placed in ball mill and carries out ball-milling treatment, forms coated magnetic filler；
Be kneaded: weigh by weight 90~110 parts of butyl rubber, 50~100 parts of the first reinforced filling, liquid tackifiers 100~
150 parts and 50~150 parts of coated magnetic filler, butyl rubber, the first reinforced filling, liquid thickening are sequentially added in kneader
Agent and coated magnetic filler are kneaded to form rubber compound；
Magnetize: it is semi-finished product tack gradient damping material that rubber compound, which is placed in extrusion molding in extruder, and certainly by semi-finished product
Velocity gradient damping material is placed in magnet charger；
Finished product: semi-finished product tack gradient damping material is placed in the double field devices of warm magnetic, the damping of finished self-adhesive gradient is obtained
Material.
6. a kind of preparation method of tack gradient damping material according to claim 5, it is characterised in that: the temperature magnetic
Double field devices include cabinet, and heating chamber is provided in the cabinet, is provided with magnet in the heating chamber.
7. a kind of preparation method of tack gradient damping material according to claim 5, it is characterised in that: the baking oven
Operating temperature be 150~170 DEG C, the heating time that coprecipitated material is placed in baking oven of being demulsified is 5 ~ 20min.
8. a kind of preparation method of tack gradient damping material according to claim 5, it is characterised in that: the extrusion
The extrusion molding temperature of machine is 120 ~ 150 DEG C.
9. a kind of preparation method of tack gradient damping material according to claim 5, it is characterised in that: the kneading
The milling work temperature of machine is 100 ~ 120 DEG C.
10. a kind of preparation method of tack gradient damping material according to claim 5, it is characterised in that: described to add
The temperature of hot chamber is 100 ~ 150 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115975219B (en) * | 2022-12-27 | 2024-04-16 | 山东京博中聚新材料有限公司 | Butyl latex, butyl latex product and preparation method thereof |
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