CN109251427B - Wide-temperature-range environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material and preparation method thereof - Google Patents
Wide-temperature-range environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a wide temperature range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material and a preparation method thereof. Adding the modified filler into a rubber matrix material containing the environment-friendly reclaimed rubber, and adding an anti-aging agent, a softening plasticizer, a vulcanizing agent and the like to prepare a mixed rubber material. And adding a plasticizer, a heat stabilizer and the like into the chlorinated polyethylene and polyvinyl chloride mixed material, premixing the mixture with the rubber compound obtained in the experiment according to a certain proportion, and then carrying out dynamic vulcanization and magnetization at high temperature to obtain the environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material.
Description
Technical Field
The invention belongs to the technical field of damping materials, and particularly relates to a damping material and a preparation method thereof.
Background
One kind of damping material is a functional material which can convert vibration energy and sound energy into heat energy to be dissipated, and the magnetic force generated by the magnetic damping material lags the damping and can convert mechanical vibration into heat energy to be dissipated, so that the damping effect is achieved. The magnetic damping material can effectively inhibit the propagation of noise sources, plays a positive role in reducing noise pollution, and is a damping material with great development prospect. But the common magnetic rubber at present has narrow damping temperature range and is difficult to recycle. The wide-temperature-range (the damping temperature range is more than 60 ℃), high-damping (the loss factor tg delta is more than 0.3) environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material has good mechanical property, weather resistance and dimensional stability, is easy to process and recycle, and can meet the performance requirements of various industries on the damping material.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material which is low in manufacturing cost, has good damping performance in a wider temperature range, is easy to process and recycle. Specifically, the modified filler is obtained by blending the magnetic filler with other fillers capable of improving the damping performance of the material and adding a modifier and a compatibilizer into the mixture. Adding the modified filler into a rubber matrix material containing the environment-friendly reclaimed rubber, and adding an anti-aging agent, a softening plasticizer, a vulcanizing agent and the like to prepare a mixed rubber material. And adding a plasticizer, a heat stabilizer and the like into the chlorinated polyethylene and polyvinyl chloride mixed material, premixing the mixture with the rubber compound obtained in the experiment according to a certain proportion, and then carrying out dynamic vulcanization and magnetization at high temperature to obtain the environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material.
The invention is realized by the following technical scheme that the wide-temperature-range environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material consists of two parts, namely a rubber component and a plastic component;
a first part: the rubber component comprises the following raw materials in parts by weight:
20-50 parts of butyl rubber, 10 parts of chlorosulfonated polyethylene and 10-40 parts of environment-friendly reclaimed rubber; 80-180 parts of modified filler; 2.1-3.5 parts of zinc oxide; 0.7-2.1 parts of stearic acid; 0.7-1.05 parts of accelerator PZ; 0.7-1.05 parts of sulfur; 201 resin, 2.1-3.5 shares; 3.5-10.5 parts of rosin pentaerythritol ester; 1.05-1.75 parts of anti-aging agent RD;
the modified filler comprises the following raw materials in parts by weight: 40-120 parts of magnetic filler; 10-21.5 parts of diatomite; 5-10.5 parts of attapulgite; 15-24.5 parts of ammonium polyphosphate and melamine are used in combination, and the mass ratio of the ammonium polyphosphate to the melamine is as follows: melamine is 4: 1; 3.5-10 parts of expanded graphite; 1.2-2.7 parts of coupling agent Si-69 and coupling agent A171 in a mass ratio of 1: 1-2; PEG20000 and 0.8-3.6 parts; pentaerythritol: 2-4 parts; 4-10 parts of TOP plasticizer; 1.76 to 10.8 portions of rosin pentaerythritol ester; 0.96-7.2 parts of naphthenic oil or epoxidized soybean oil; 1.28-9 parts of styrene-ethylene-propylene-styrene copolymer (SEPS); 1010 portions of antioxidant, 0.4 to 0.9 portion;
the preparation method of the modified filler comprises the following steps: respectively placing magnetic filler, diatomite, attapulgite, ammonium polyphosphate, melamine and expanded graphite at 100 ℃ for drying for 4-6 hours, cooling, adding into a high-speed mixer, adding coupling agent Si-69, coupling agent A171 and PEG20000, stirring at main shaft speed of 450 rpm, slowly heating while stirring, stirring at constant temperature of 80-90 deg.C for 2 hr, adding pentaerythritol, trioctyl phosphate (TOP) and naphthenic oil or epoxidized soybean oil, continuously mixing for 10 minutes at the same rotating speed, then adding rosin pentaerythritol ester and antioxidant 1010, slowly heating to 120 ℃ at the temperature of 100-;
a second part: the plastic comprises the following raw materials in parts by weight:
polyvinyl chloride (PVC) 10-15 parts; chlorinated Polyethylene (CPE) 15-20 parts; styrene-ethylene-propylene-styrene copolymer (SEPS) or acetic acid-vinyl acetate polymer (EVA), 10-20 parts; 2-4 parts of rosin pentaerythritol ester, and 3-4 parts of plasticizer TOP; 0.45-0.9 part of liquid calcium-zinc heat stabilizer; 1010 and 0.3 to 0.6 portion of antioxidant.
As an optimized scheme of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, the butyl rubber is chlorinated butyl rubber or brominated butyl rubber.
As an optimized scheme of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, the environment-friendly reclaimed rubber is bottle stopper type environment-friendly reclaimed rubber taking chlorinated butyl rubber or brominated butyl rubber as a main component.
As an optimized scheme of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, the magnetic filler consists of strontium ferrite and neodymium iron boron magnet, wherein the consumption of the neodymium iron boron magnet accounts for 10-20% of the mass of the magnetic filler; and epoxy resin is sprayed on the surface of the neodymium iron boron magnet.
As an optimized scheme of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, the 201 resin is brominated p-tert-octyl phenolic vulcanized resin.
As an optimized scheme of the wide temperature range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, the total amount of the butyl rubber, the chlorosulfonated polyethylene in the rubber component, the polyvinyl chloride and the chlorinated polyethylene in the environment-friendly reclaimed rubber and the plastic component is 100 parts.
The preparation method of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material comprises the following steps:
step 1) preparation of rubber compound: mixing by using an open rubber mixing mill or a closed rubber mixing mill, wherein the charging sequence is as follows in sequence: butyl rubber, chlorosulfonated polyethylene → environment-friendly reclaimed rubber → rosin pentaerythritol ester and antioxidant RD → zinc oxide, stearic acid → modified filler → accelerator PZ, sulfur and 201 resin; standing the rubber material at room temperature for more than 12 hours to obtain rubber compound for later use;
step 2) preparing the thermoplastic elastomer damping material: mixing the rubber compound prepared in the step 1), polyvinyl chloride, chlorinated polyethylene, styrene-ethylene-propylene-styrene copolymer or acetic acid-vinyl acetate polymer, rosin pentaerythritol ester, a plasticizer TOP, a liquid calcium-zinc heat stabilizer and an antioxidant 1010; premixing in a blender, and adding the premix into a charging barrel of a double-screw extruder; the process conditions of the extruder are as follows: the first section is 130 ℃, the second section is 135 ℃, the third section is 140 ℃, the fourth section is 145 ℃, the fifth section is 150 ℃, the sixth section is 165 ℃, the die head is 165 ℃, and the rotating speed of the screw is 30-35 r/min; under the shearing action of the screw, rubber is sheared into small-size dispersed phases while being dynamically vulcanized, and plastic becomes continuous phases to finish the dynamic vulcanization process; extruding and granulating to obtain the thermoplastic elastomer damping material;
and 3) magnetizing the thermoplastic elastomer obtained in the step 3) to obtain the magnetic damping material.
The invention relates to an optimization scheme of a preparation method of a wide temperature range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material, which comprises the following steps: the magnetizing conditions are as follows: and (3) placing the thermoplastic elastomer at 1-2T, and magnetizing for 10-30 minutes.
Drawings
Damping performance of examples 1-3 of figure 1 (tensile mode, 10 Hz).
The invention has the beneficial technical effects that:
1. the addition of a certain amount of environment-friendly reclaimed rubber is beneficial to improving the cost performance of the damping material and realizing the recycling of waste raw materials.
2. The magnetic damping material with wide temperature range (the damping temperature range is more than 60 ℃), high damping (the loss factor tg delta is more than 0.3), flame retardance, easy processing and easy recycling can be prepared.
Detailed Description
The present invention is further illustrated by the following examples, which should be clear to a person skilled in the art, are intended to be illustrative and explanatory of the invention and should not be construed as limiting the scope of protection.
Example 1
Weighing 36 parts of strontium ferrite, 4 parts of neodymium iron boron magnet, 15 parts of diatomite, 5 parts of attapulgite, and 20 parts of ammonium polyphosphate and melamine, wherein the ammonium polyphosphate is prepared by the following components in parts by mass: the melamine is 4: 1; baking 10 parts of expanded graphite for 4 hours at 100 ℃, cooling, then putting into a high-speed mixer, adding 1.35 parts of coupling agent Si-69 and coupling agent A-171, and mixing the coupling agent Si-69 and the coupling agent A171 in a mass ratio of 1: 1; and stirring and mixing 0.9 part of PEG20000, stirring and slowly heating at the main shaft speed of 450 revolutions per minute, stirring and slowly heating up, stirring at the constant temperature of 90 ℃ for 2 hours, adding 2 parts of pentaerythritol, 4 parts of TOP and 3 parts of naphthenic oil, continuously mixing at the same speed for 10 minutes, then adding 2.7 parts of rosin pentaerythritol ester and 0.45 part of antioxidant 1010, slowly heating to 100 ℃, stirring at the constant temperature for 30 minutes, finally adding SEPS and 3.6 parts of antioxidant, continuously stirring at the same temperature for 10 minutes, discharging, cooling to room temperature, and sealing and storing to obtain the modified filler.
Mixing by using an open rubber mixing mill, adding 30 parts of chlorinated butyl rubber, 10 parts of chlorosulfonated polyethylene and 30 parts of environment-friendly chlorinated butyl reclaimed rubber, uniformly mixing, and sequentially adding 3.5 parts of rosin pentaerythritol ester, 1.05 parts of anti-aging agent RD, 2.1 parts of zinc oxide, 0.7 part of stearic acid, 90 parts of modified filler, 0.7 part of accelerator PZ, 0.7 part of sulfur and 3 parts of 201 resin; the rubber compound is kept for more than 12 hours at room temperature for standby.
171.75 parts of the rubber compound, 10 parts of PVC, 20 parts of CPE, 20 parts of EVA, 20 parts of rosin pentaerythritol ester, 2.5 parts of TOP, 4 parts of liquid calcium zinc heat stabilizer, 0.8 part of antioxidant 1010 and 0.5 part of the liquid calcium zinc heat stabilizer are premixed in a mixer, and then the premix is added into a charging barrel of a double-screw extruder. The process conditions of the extruder are as follows: the first section is 130 ℃, the second section is 135 ℃, the third section is 140 ℃, the fourth section is 145 ℃, the fifth section is 150 ℃, the sixth section is 165 ℃, the die head is 165 ℃, and the rotating speed of the screw is 35 r/min; under the shearing action of the screw, rubber is sheared into small-size dispersed phases while being dynamically vulcanized, and plastic becomes continuous phases to finish the dynamic vulcanization process; and extruding and granulating to obtain the environment-friendly regenerated rubber-based thermoplastic elastomer damping material. Magnetizing the prepared environment-friendly regenerated rubber-based thermoplastic elastomer for 10 minutes with the magnetic field intensity of 1T.
Example 2
Weighing 51 parts of strontium ferrite, 9 parts of neodymium iron boron magnet, 20 parts of diatomite, 5 parts of attapulgite, and 20 parts of ammonium polyphosphate and melamine, wherein the ammonium polyphosphate is prepared by the following components in parts by mass: the melamine is 4: 1; baking 5 parts of expanded graphite for 6 hours at 100 ℃, cooling, then putting into a high-speed mixer, adding 1.65 parts of coupling agent Si-69 and coupling agent A-171, and proportioning the coupling agent Si-69 and the coupling agent A171 by mass into the mixer in a ratio of 1: 1; PEG20000 and 2.2 parts are stirred and mixed, the rotating speed of a main shaft is 450 r/min, the temperature is slowly increased while stirring, 3 parts of pentaerythritol, 3 parts of TOP, 6 parts of naphthenic oil and 5 parts of naphthenic oil are added after the temperature of the materials is raised to 90 ℃ and stirring is carried out at constant temperature for 2 hours, 5 parts of rosin pentaerythritol ester and 0.5 part of antioxidant 1010 are added after mixing is continuously carried out for 10 minutes at the same rotating speed, the mixture is slowly heated to 120 ℃, stirring is carried out at constant temperature for 30 minutes, SEPS and 5 parts of the mixture are added finally and stirring is continuously carried out for 10 minutes at the same temperature, discharging is carried out, and the modified filler is.
Mixing by using an open rubber mixing mill, adding 40 parts of chlorinated butyl rubber, 10 parts of chlorosulfonated polyethylene and 20 parts of environment-friendly chlorinated butyl reclaimed rubber, uniformly mixing, and sequentially adding 5 parts of rosin pentaerythritol ester, 1.4 parts of antioxidant RD, 2.8 parts of zinc oxide, 0.8 part of stearic acid, 110 parts of modified filler, 0.8 part of accelerator PZ, 0.8 part of sulfur, 201 resin and 3 parts of resin; the rubber compound is kept for more than 12 hours at room temperature for standby.
194.6 parts of the rubber compound, 10 parts of PVC, 20 parts of CPE, 20 parts of EVA, 20 parts of rosin pentaerythritol ester, 3 parts of TOP, 4 parts of liquid calcium zinc heat stabilizer, 0.9 part of antioxidant 1010 and 0.5 part of the liquid calcium zinc heat stabilizer are premixed in a mixer, and then the premix is added into a charging barrel of a double-screw extruder. The process conditions of the extruder are as follows: one section is 130 ℃, the second section is 135 ℃, the third section is 140 ℃, the fourth section is 145 ℃, the fifth section is 150 ℃, the sixth section is 165 ℃, the die head is 165 ℃, and the rotating speed of the screw is 35 r/min. Under the shearing action of the screw, the rubber is sheared into small size and becomes dispersed phase while being dynamically vulcanized, and the plastic becomes continuous phase, so that the dynamic vulcanization process is completed. And extruding and granulating to obtain the environment-friendly regenerated rubber-based thermoplastic elastomer damping material. Magnetizing the prepared environment-friendly regenerated rubber-based thermoplastic elastomer for 15 minutes with the magnetic field intensity of 1T.
Example 3
Weighing 63 parts of strontium ferrite, 7 parts of neodymium iron boron magnet, 15 parts of diatomite, 10 parts of attapulgite, and 20 parts of ammonium polyphosphate and melamine, wherein the ammonium polyphosphate is prepared by the following components in parts by mass: the melamine is 4: 1; baking 5 parts of expanded graphite for 6 hours at 100 ℃, cooling, then putting into a high-speed mixer, adding 1.8 parts of coupling agent Si-69 and coupling agent A-171, and proportioning the coupling agent Si-69 and the coupling agent A171 by mass into the mixer in a ratio of 1: 2; PEG20000 and 2.4 parts are stirred and mixed, the rotating speed of a main shaft is 450 r/min, the temperature is slowly increased while stirring, 3 parts of pentaerythritol, 3 parts of TOP, 5 parts of naphthenic oil and 5 parts of naphthenic oil are added after the temperature of the materials is raised to 90 ℃ and stirring is carried out at constant temperature for 2 hours, 8 parts of rosin pentaerythritol ester and 0.8 part of antioxidant 1010 are added after continuously mixing for 10 minutes at the same rotating speed, the mixture is slowly heated to 120 ℃, stirring is carried out at constant temperature for 30 minutes, SEPS and 8 parts of the mixture are added finally and stirring is carried out continuously for 10 minutes at the same temperature, discharging is carried out, and the modified filler is obtained after cooling.
Mixing by using an open rubber mixing mill, adding 20 parts of chlorinated butyl rubber, 10 parts of chlorosulfonated polyethylene and 40 parts of environment-friendly chlorinated butyl reclaimed rubber, uniformly mixing, and sequentially adding 5 parts of rosin pentaerythritol ester, 1.5 parts of antioxidant RD, 3 parts of zinc oxide, 1 part of stearic acid, 120 parts of modified filler, 1 part of accelerator PZ, 1 part of sulfur, 1 part of 201 resin and 3 parts of resin; the rubber compound is kept for more than 12 hours at room temperature for standby.
And (2) premixing 205.5 parts of the rubber compound, 10 parts of PVC, 20 parts of CPE, 20 parts of SEPS, 10 parts of rosin pentaerythritol ester, 3 parts of TOP, 0.9 part of liquid calcium-zinc heat stabilizer and 0.6 part of antioxidant in a mixer, and adding the premix into a charging barrel of a double-screw extruder. The process conditions of the extruder are as follows: one section is 130 ℃, the second section is 135 ℃, the third section is 140 ℃, the fourth section is 145 ℃, the fifth section is 150 ℃, the sixth section is 165 ℃, the die head is 165 ℃, and the rotating speed of the screw is 35 r/min. Under the shearing action of the screw, the rubber is sheared into small size and becomes dispersed phase while being dynamically vulcanized, and the plastic becomes continuous phase, so that the dynamic vulcanization process is completed. And extruding and granulating to obtain the environment-friendly regenerated rubber-based thermoplastic elastomer damping material. Magnetizing the prepared environment-friendly regenerated rubber-based thermoplastic elastomer for 20 minutes with the magnetic field intensity of 1T.
Examples 1-3 thermoplastic elastomers were tested for their relevant properties according to GB/T528-; the results of testing the damping performance (tensile mode, 10 Hz) of examples 1-3 are shown in FIG. 1.
TABLE 1
Claims (3)
1. A wide temperature range environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material is characterized in that: the rubber component and the plastic component are combined;
a first part: the rubber component comprises the following raw materials in parts by weight:
20-50 parts of butyl rubber; 10 parts of chlorosulfonated polyethylene; 10-40 parts of environment-friendly reclaimed rubber; 80-180 parts of modified filler; 2.1-3.5 parts of zinc oxide; 0.7-2.1 parts of stearic acid; 0.7-1.05 parts of accelerator PZ; 0.7-1.05 parts of sulfur; 201 resin, 2.1-3.5 shares; 3.5-10.5 parts of rosin pentaerythritol ester; 1.05-1.75 parts of anti-aging agent RD;
the modified filler comprises the following raw materials in parts by weight: 40-120 parts of magnetic filler; 10-21.5 parts of diatomite; 5-10.5 parts of attapulgite; 15-24.5 parts of ammonium polyphosphate and melamine are used in combination, and the mass ratio of the ammonium polyphosphate to the melamine is as follows: melamine is 4: 1; 3.5-10 parts of expanded graphite; 1.2-2.7 parts of coupling agent Si-69 and coupling agent A171 in a mass ratio of 1: 1-2; PEG20000 and 0.8-3.6 parts; pentaerythritol and 2-4 parts; 4-10 parts of TOP plasticizer; 1.76 to 10.8 portions of rosin pentaerythritol ester; 0.96-7.2 parts of naphthenic oil or epoxidized soybean oil; 1.28-9 parts of styrene-ethylene-propylene-styrene copolymer; 1010 portions of antioxidant, 0.4 to 0.9 portion;
the preparation method of the modified filler comprises the following steps: respectively placing magnetic filler, diatomite, attapulgite, ammonium polyphosphate, melamine and expanded graphite at 100 ℃ for drying for 4-6 hours, cooling, adding into a high-speed mixer, adding coupling agent Si-69, coupling agent A171 and PEG20000, stirring at main shaft speed of 450 rpm, slowly heating while stirring, stirring at constant temperature of 80-90 deg.C for 2 hr, adding pentaerythritol, trioctyl phosphate and naphthenic oil or epoxidized soybean oil, continuously mixing for 10 minutes at the same rotating speed, then adding rosin pentaerythritol ester and antioxidant 1010, slowly heating to 120 ℃ at the temperature of 100-;
a second part: the plastic comprises the following raw materials in parts by weight:
10-15 parts of polyvinyl chloride; 15-20 parts of chlorinated polyethylene; 10-20 parts of styrene-ethylene-propylene-styrene copolymer or ethylene-vinyl acetate polymer; 2-4 parts of rosin pentaerythritol ester, and 3-4 parts of plasticizer TOP; 0.45-0.9 part of liquid calcium-zinc heat stabilizer; 0.3-0.6 part of antioxidant 1010;
the butyl rubber is chlorinated butyl rubber or brominated butyl rubber;
the environment-friendly reclaimed rubber is bottle stopper type environment-friendly reclaimed rubber taking chlorinated butyl rubber or brominated butyl rubber as a main component;
the magnetic filler consists of strontium ferrite and neodymium iron boron magnets, wherein the dosage of the neodymium iron boron magnets accounts for 10-20% of the mass of the magnetic filler; epoxy resin is sprayed on the surface of the neodymium iron boron magnet;
the 201 resin is brominated p-tert-octyl phenolic vulcanized resin;
the rubber component comprises 100 parts of butyl rubber, chlorosulfonated polyethylene, environment-friendly reclaimed rubber and 100 parts of polyvinyl chloride and chlorinated polyethylene in the plastic component.
2. The preparation method of the wide-temperature-range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material as claimed in claim 1, characterized by comprising the following steps:
step 1) preparation of rubber compound: mixing by using an open rubber mixing mill or a closed rubber mixing mill, wherein the charging sequence is as follows in sequence: butyl rubber, chlorosulfonated polyethylene → environment-friendly reclaimed rubber → rosin pentaerythritol ester and antioxidant RD → zinc oxide, stearic acid → modified filler → accelerator PZ, sulfur and 201 resin; standing the rubber material at room temperature for more than 12 hours to obtain rubber compound for later use;
step 2) preparing the thermoplastic elastomer damping material: mixing the rubber compound prepared in the step 1), polyvinyl chloride, chlorinated polyethylene, styrene-ethylene-propylene-styrene copolymer or ethylene-vinyl acetate polymer, rosin pentaerythritol ester, a plasticizer TOP, a liquid calcium-zinc heat stabilizer and an antioxidant 1010; premixing in a blender, and adding the premix into a charging barrel of a double-screw extruder; the process conditions of the extruder are as follows: the first section is 130 ℃, the second section is 135 ℃, the third section is 140 ℃, the fourth section is 145 ℃, the fifth section is 150 ℃, the sixth section is 165 ℃, the die head is 165 ℃, and the rotating speed of the screw is 30-35 r/min; under the shearing action of the screw, rubber is sheared into small-size dispersed phases while being dynamically vulcanized, and plastic becomes continuous phases to finish the dynamic vulcanization process; extruding and granulating to obtain the thermoplastic elastomer damping material;
and 3) magnetizing the thermoplastic elastomer obtained in the step 3) to obtain the magnetic damping material.
3. The preparation method of the wide temperature range environment-friendly reclaimed rubber-based thermoplastic elastomer magnetic damping material according to claim 2, characterized in that: the magnetizing conditions are as follows: and (3) placing the thermoplastic elastomer at 1-2T, and magnetizing for 10-30 minutes.
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| CN201810343843.XA CN108440854A (en) | 2018-04-17 | 2018-04-17 | Environmental friendly regenerated matrix thermoplastic elastomer (TPE) magnetically damped material of a kind of width temperature range and preparation method thereof |
| CN201810343843X | 2018-04-17 |
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| CN201811056671.4A Active CN109251427B (en) | 2018-04-17 | 2018-09-11 | Wide-temperature-range environment-friendly regenerated rubber-based thermoplastic elastomer magnetic damping material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000036022A1 (en) * | 1998-12-11 | 2000-06-22 | Shishiai-Kabushikigaisha | Energy converting compound |
| EP2065456A4 (en) * | 2006-08-30 | 2010-11-10 | Koatsu Gas Kogyo | Resin composition for damping material and damping material |
| CN102875909A (en) * | 2012-10-26 | 2013-01-16 | 浙江大学 | Method for enhancing damping capacity of rubber by adding neodymium-iron-boron magnetic powder |
| CN102924832A (en) * | 2012-10-22 | 2013-02-13 | 广德天运无纺有限公司 | Resonance damping material produced by using waste rubber |
| CN103865130A (en) * | 2014-03-31 | 2014-06-18 | 青岛四方车辆研究所有限公司 | High-damping rubber support base and manufacturing method thereof |
-
2018
- 2018-04-17 CN CN201810343843.XA patent/CN108440854A/en active Pending
- 2018-09-11 CN CN201811056671.4A patent/CN109251427B/en active Active
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| WO2000036022A1 (en) * | 1998-12-11 | 2000-06-22 | Shishiai-Kabushikigaisha | Energy converting compound |
| EP2065456A4 (en) * | 2006-08-30 | 2010-11-10 | Koatsu Gas Kogyo | Resin composition for damping material and damping material |
| CN102924832A (en) * | 2012-10-22 | 2013-02-13 | 广德天运无纺有限公司 | Resonance damping material produced by using waste rubber |
| CN102875909A (en) * | 2012-10-26 | 2013-01-16 | 浙江大学 | Method for enhancing damping capacity of rubber by adding neodymium-iron-boron magnetic powder |
| CN103865130A (en) * | 2014-03-31 | 2014-06-18 | 青岛四方车辆研究所有限公司 | High-damping rubber support base and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN109251427A (en) | 2019-01-22 |
| CN108440854A (en) | 2018-08-24 |
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