CN111004468B - Preparation method and application of damping shock-absorbing rubber - Google Patents
Preparation method and application of damping shock-absorbing rubber Download PDFInfo
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- CN111004468B CN111004468B CN201911183112.4A CN201911183112A CN111004468B CN 111004468 B CN111004468 B CN 111004468B CN 201911183112 A CN201911183112 A CN 201911183112A CN 111004468 B CN111004468 B CN 111004468B
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- flame retardant
- butyl rubber
- peroxide
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 45
- 238000013016 damping Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000004048 modification Effects 0.000 claims abstract description 12
- 238000012986 modification Methods 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 11
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000008096 xylene Substances 0.000 claims description 9
- YOBOXHGSEJBUPB-MTOQALJVSA-N (z)-4-hydroxypent-3-en-2-one;zirconium Chemical compound [Zr].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O YOBOXHGSEJBUPB-MTOQALJVSA-N 0.000 claims description 8
- 238000004073 vulcanization Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012934 organic peroxide initiator Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 4
- BMFMTNROJASFBW-UHFFFAOYSA-N 2-(furan-2-ylmethylsulfinyl)acetic acid Chemical compound OC(=O)CS(=O)CC1=CC=CO1 BMFMTNROJASFBW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 150000002978 peroxides Chemical group 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 8
- 125000003636 chemical group Chemical group 0.000 description 7
- REOJLIXKJWXUGB-UHFFFAOYSA-N mofebutazone Chemical group O=C1C(CCCC)C(=O)NN1C1=CC=CC=C1 REOJLIXKJWXUGB-UHFFFAOYSA-N 0.000 description 7
- ZMSQJSMSLXVTKN-UHFFFAOYSA-N 4-[2-(2-morpholin-4-ylethoxy)ethyl]morpholine Chemical compound C1COCCN1CCOCCN1CCOCC1 ZMSQJSMSLXVTKN-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 125000005474 octanoate group Chemical group 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 2
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012822 chemical development Methods 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/08—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms
- C08F255/10—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms on to butene polymers
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/04—Carbon
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a preparation method of damping shock-absorbing rubber, which relates to the technical field of rubber material processing and comprises the following preparation steps: (1) graft modification of butyl rubber; (2) preparing a filler; (3) molding the rubber; the damping vibration-damping rubber is prepared by taking the butyl rubber as a main material through graft modification of the butyl rubber and combination of the filler and the functional auxiliary agent, has good damping performance and fatigue resistance, effectively prolongs the service life of the rubber while ensuring the vibration-damping effect, and meets the use requirements of the household appliance industry on the damping vibration-damping rubber.
Description
The technical field is as follows:
the invention relates to the technical field of rubber material processing, in particular to a preparation method and application of damping rubber.
Background art:
the damping material has the functions of shock absorption and noise reduction, and is widely applied to a plurality of industries and technical fields. The damping material can ensure the normal operation of parts through damping in the household appliance industry, thereby prolonging the service life. At present, damping materials are mostly made of rubber, so that vibration and an excitation source can be effectively isolated, and vibration of a vibrating body can be alleviated.
For the shock absorption rubber, a certain amount of reinforcing agent is required to be added to obtain corresponding strength and damping property. However, in the use process of the damping rubber, under the action of repeated stretching and compressing forces, the stress relaxation generated in the material is not completed in time in a deformation cycle, so that the stress generated inside is not dispersed in time, and the cross-linking bonds among rubber molecules are broken, thereby causing the great reduction of the rubber fatigue resistance.
The invention content is as follows:
the invention aims to solve the technical problem of providing a preparation method of damping and shock-absorbing rubber, which has good damping performance and fatigue resistance and can be used as a damping and shock-absorbing material in the household appliance industry.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a preparation method of damping shock-absorbing rubber comprises the following preparation steps:
(1) Graft modification of butyl rubber: dripping xylene into a mixture of butyl rubber and 2-acrylamide-2-methylpropanesulfonic acid until the xylene is completely dissolved, adding an organic peroxide initiator, heating for reaction, and after the reaction is finished, carrying out reduced pressure distillation to recover the xylene, wherein the remainder is modified butyl rubber;
(2) Preparing the filler: mixing carbon black, white carbon black and calcined kaolin, drying the mixture to constant weight by using an oven, and preparing the mixture into micro powder by using a superfine pulverizer to obtain the filler;
(3) And (3) forming of rubber: putting the prepared modified butyl rubber into an internal mixer for mixing, and then putting the filler, the organic flame retardant, the silane coupling agent, the lubricant and the crosslinking agent for mixing to obtain a mixed rubber material; and (3) adding a vulcanization accelerator into the mixed rubber material, mixing on an open mill, thinly passing, and then discharging to obtain the rubber.
The mass ratio of the butyl rubber, 2-acrylamide-2-methylpropanesulfonic acid, organic peroxide initiator, carbon black, white carbon black, calcined kaolin, organic flame retardant, silane coupling agent, lubricant, crosslinking agent and vulcanization accelerator is (50-100).
The organic peroxide initiator is benzoyl peroxide, benzoyl tert-butyl peroxide or methyl ethyl ketone peroxide.
The organic flame retardant is organic phosphate flame retardant, preferably FR-680 flame retardant.
The cross-linking agent consists of dicumyl peroxide and zinc methacrylate, and the mass ratio is 0.5-3.
The vulcanization accelerator is a peroxide vulcanizing agent, preferably a vulcanizing agent BIBP.
The mixing is carried out at 100-200 ℃.
The lubricant is selected from industrial white oil, dimorpholinyl diethyl ether or zirconium acetylacetonate.
The industrial white oil has the advantages of low cost and good lubricating property, but has little effect of enhancing the damping performance and the fatigue resistance of rubber, so the inventor tries to replace the industrial white oil with the dimorpholinodiethylether or the zirconium acetylacetonate as the lubricant in the test process, and the test result shows that the dimorpholinodiethylether and the zirconium acetylacetonate not only can exert good lubricating property but also can obviously enhance the damping performance and the fatigue resistance of the rubber, and the dimorpholinodiethylether and the zirconium acetylacetonate do not belong to the known lubricant for rubber products.
In order to further enhance the damping performance and the fatigue resistance of the rubber, the invention also carries out bulking treatment on the filler component white carbon black, and the concrete operations are as follows: adding water to wet white carbon black, adding the wet white carbon black into a high-pressure reaction kettle, heating the mixture to 110-120 ℃, preserving heat and stirring the mixture, pressurizing the mixture to 5-10MPa, preserving heat and maintaining pressure, adding the monobutyl triisooctanoic acid tin, continuously preserving heat and maintaining pressure at the temperature of 110-120 ℃ and the pressure of 5-10MPa while stirring, naturally cooling the mixture to below 60 ℃ after pressure relief, and discharging the product.
The mass ratio of the white carbon black to the water to the monobutyl triisooctanoic acid tin is 20-15.
The monobutyl triisotin octoate is usually used as an organotin catalyst for esterification, and the action mechanism of adding the monobutyl triisotin octoate in the bulking treatment of the invention is as follows: under the conditions of high temperature and high pressure, the monobutyl triisotin octoate permeates into the inner pore canal of the expanded silicon dioxide, and the filling performance of the white carbon black serving as a filler is improved through the formation of a composite staggered structure of the monobutyl triisotin octoate and the silicon dioxide, so that the damping performance and the fatigue resistance of the rubber are optimized.
The damping and shock-absorbing rubber is applied to shock absorption and damping in the household appliance industry. The prepared rubber is applied to damping of household appliances, and can obtain good damping effect.
The beneficial effects of the invention are: the damping vibration-damping rubber is prepared by taking the butyl rubber as a main material through graft modification of the butyl rubber and combination of the filler and the functional auxiliary agent, has good damping performance and fatigue resistance, effectively prolongs the service life of the rubber while ensuring the vibration-damping effect, and meets the use requirements of the household appliance industry on the damping vibration-damping rubber.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The butyl rubber 1751 in the following examples and comparative examples was from Yanshan petrochemical, 2-acrylamido-2-methylpropanesulfonic acid was from Shandong alliance chemical group, benzoyl peroxide was from Togyo Haiyin chemical group, carbon black N550 was from Longxing chemical group, white carbon 255 was from Nanji chemical group, calcined kaolin was from Yangzhou blue chemical raw material, flame retardant FR-680 was from Huaian excellence rubber, silane coupling agent SI-69 was from Shanghai Kemaoji chemical group, industrial white oil P500 was from Shanghai lubricating oil, dimorpholinodiethyl ether was from Shanghai Xinjiang UK, zirconium acetylacetonate was from Shanghai Cartesian biological science group, dicumyl peroxide was from Zhengjiang BaoHeneng chemical group, zinc methacrylate Sunday Tiantian wing fine chemical development, BIBP was from Kunzan Hill chemical group.
Example 1
(1) Graft modification of butyl rubber: adding xylene dropwise into a mixture of 1751 g of butyl rubber and 25g of 2-acrylamide-2-methylpropanesulfonic acid until the xylene is completely dissolved, adding 3g of benzoyl peroxide, heating to 80 ℃, reacting for 8 hours, and after the reaction is finished, carrying out reduced pressure distillation to recover the xylene, wherein the remainder is modified butyl rubber;
(2) Preparing the filler: mixing 25g of carbon black N550, 15g of white carbon black 255 and 10g of calcined kaolin, drying the mixture to constant weight by using a 110 ℃ drying oven, and preparing the mixture into 80-mesh micro powder by using a superfine pulverizer to obtain a filler;
(3) And (3) molding of the rubber: the modified butyl rubber prepared in the method is put into an internal mixer to be mixed for 15min, and then the filler, 50g of flame retardant FR-680, 5g of silane coupling agent SI-69, 12g of industrial white oil P500, 0.5g of dicumyl peroxide and 2.5g of zinc methacrylate are put into the internal mixer to be mixed for 25min, wherein the mixing temperature is controlled at 115 ℃, and a mixed rubber material is obtained; and 3g of vulcanization accelerator BIBP is added into the mixed rubber material, mixed on an open mill, thinly passed for 3 times, and then taken out to obtain the rubber.
Example 2
The procedure of example 1 was repeated except that the lubricant used in example 1 was changed from technical white oil P500 to dimorpholinyldiethylether.
Example 3
The procedure of example 1 was repeated except that the lubricant used in example 1 was changed from technical white oil P500 to zirconium acetylacetonate.
Example 4
The white carbon black in the embodiment 1 is subjected to puffing treatment, and the specific operation is as follows: wetting 20g of white carbon black with 10g of water, adding the mixture into a high-pressure reaction kettle, heating the mixture to 110 ℃, carrying out heat preservation and stirring, pressurizing the mixture to 8MPa, carrying out heat preservation and pressure maintaining treatment for 15min, adding 4g of monobutyl triisooctanoic acid tin, carrying out heat preservation and pressure maintaining treatment for 30min at the temperature of 110 ℃ and the pressure of 8MPa under stirring, carrying out pressure relief, naturally cooling the mixture to 58 ℃, and discharging the product; the rest of the procedure was the same as in example 1.
Comparative example 1
The procedure of example 1 was repeated except that the modifier for graft modification of butyl rubber in example 1 was changed from 2-acrylamido-2-methylpropanesulfonic acid to maleic anhydride, which is a butyl rubber graft modifier commonly used in the art.
Comparative example 2
The technical scheme of the graft modification treatment of the butyl rubber in the example 1 is deleted, and the rest of the operation is the same as the example 1.
The damping vibration-reducing rubber is prepared by respectively utilizing the embodiments and the comparative examples, and a damping performance test is carried out by utilizing a rubber processing analyzer RPA, wherein the damping performance test conditions are as follows: the frequency is 1Hz, the temperature is 25 ℃, and the strain range is 50-100%; the fatigue life is determined by reference to GB/T15584-1995, namely determination of temperature rise and fatigue resistance of vulcanized rubber in a flexing test.
TABLE 1 damping property and fatigue resistance of damping and shock-absorbing rubber of the invention
As can be seen from Table 1, the invention can effectively improve the loss factor tan delta and the fatigue life of the rubber by using dimorpholinodiethyl ether or zirconium acetylacetonate instead of industrial white oil as a lubricant and performing graft modification treatment on the butyl rubber, and the larger the values of the loss factor tan delta and the fatigue life are, the better the damping performance and the fatigue resistance of the rubber are. In addition, the grafting modification effect of the 2-acrylamide-2-methylpropanesulfonic acid on butyl rubber is obviously better than that of maleic anhydride.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The preparation method of the damping shock-absorbing rubber is characterized by comprising the following preparation steps of:
(1) Graft modification of butyl rubber: dripping xylene into a mixture of butyl rubber and 2-acrylamide-2-methylpropanesulfonic acid until the xylene is completely dissolved, adding an organic peroxide initiator, heating for reaction, and after the reaction is finished, carrying out reduced pressure distillation to recover the xylene, wherein the remainder is modified butyl rubber;
(2) Preparation of the filler: mixing carbon black, white carbon black and calcined kaolin, drying the mixture to constant weight by using an oven, and preparing the mixture into micro powder by using a superfine pulverizer to obtain the filler;
(3) And (3) forming of rubber: the prepared modified butyl rubber is put into an internal mixer for mixing, and then the filler, the organic flame retardant, the silane coupling agent, the lubricant and the crosslinking agent are put into the internal mixer for mixing to obtain a mixed rubber material; and (3) adding a vulcanization accelerator into the mixed rubber material, mixing on an open mill, thinly passing, and then discharging to obtain the rubber.
2. The method of claim 1, wherein: the mass ratio of the butyl rubber, 2-acrylamide-2-methylpropanesulfonic acid, organic peroxide initiator, carbon black, white carbon black, calcined kaolin, organic flame retardant, silane coupling agent, lubricant, crosslinking agent and vulcanization accelerator is 50-100.
3. The method of claim 1, wherein: the organic peroxide initiator is benzoyl peroxide, benzoyl tert-butyl peroxide or methyl ethyl ketone peroxide.
4. The production method according to claim 1, characterized in that: the organic flame retardant is organic phosphate flame retardant.
5. The method of claim 4, wherein: the organic flame retardant is preferably a flame retardant FR-680.
6. The method of claim 1, wherein: the cross-linking agent consists of dicumyl peroxide and zinc methacrylate, and the mass ratio is 0.5-3.
7. The production method according to claim 1, characterized in that: the vulcanization accelerator is a peroxide vulcanizing agent.
8. The method of claim 7, wherein: the vulcanization accelerator is preferably a vulcanizing agent BIBP.
9. The method of claim 1, wherein: the mixing is carried out at 100-200 ℃.
10. The method of claim 1, wherein: the lubricant is selected from industrial white oil, dimorpholinyl diethyl ether or zirconium acetylacetonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183112.4A CN111004468B (en) | 2019-11-27 | 2019-11-27 | Preparation method and application of damping shock-absorbing rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183112.4A CN111004468B (en) | 2019-11-27 | 2019-11-27 | Preparation method and application of damping shock-absorbing rubber |
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| Publication Number | Publication Date |
|---|---|
| CN111004468A CN111004468A (en) | 2020-04-14 |
| CN111004468B true CN111004468B (en) | 2023-03-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553522A (en) * | 2006-10-25 | 2009-10-07 | Jsr株式会社 | Process for producing modified polymer, modified polymer obtained by the process, and rubber composition containing the same |
| CN103627014A (en) * | 2013-11-29 | 2014-03-12 | 内蒙古科技大学 | Method for preparing modified polyvinylidene fluoride one-step grafted 2-acrylyl amino-2-methyl-1-proplate sulfonic acid proton exchange membrane |
| JP2014231543A (en) * | 2013-05-28 | 2014-12-11 | 住友ゴム工業株式会社 | Bonding method and surface-modified elastic body |
| CN106810774A (en) * | 2015-12-01 | 2017-06-09 | 杭州顺豪橡胶工程有限公司 | Without pressure heat cure adhesion type high-performance rubber damping fin material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4122033B2 (en) * | 2005-10-21 | 2008-07-23 | 横浜ゴム株式会社 | Modified butyl rubber composition |
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|---|---|---|---|---|
| CN101553522A (en) * | 2006-10-25 | 2009-10-07 | Jsr株式会社 | Process for producing modified polymer, modified polymer obtained by the process, and rubber composition containing the same |
| JP2014231543A (en) * | 2013-05-28 | 2014-12-11 | 住友ゴム工業株式会社 | Bonding method and surface-modified elastic body |
| CN103627014A (en) * | 2013-11-29 | 2014-03-12 | 内蒙古科技大学 | Method for preparing modified polyvinylidene fluoride one-step grafted 2-acrylyl amino-2-methyl-1-proplate sulfonic acid proton exchange membrane |
| CN106810774A (en) * | 2015-12-01 | 2017-06-09 | 杭州顺豪橡胶工程有限公司 | Without pressure heat cure adhesion type high-performance rubber damping fin material |
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| Gamma irradiation induced effects of butyl rubber based damping material;Chen Hong-Bing等;《RADIATION PHYSICS AND CHEMISTRY》;第145卷;第202-206页 * |
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Denomination of invention: Preparation method and application of a damping and shock-absorbing rubber Effective date of registration: 20230727 Granted publication date: 20230328 Pledgee: Bank of China Limited Xuancheng Branch Pledgor: Anhui Xinding polymer material Co.,Ltd. Registration number: Y2023980049974 |
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Denomination of invention: Preparation method and application of a damping and shock-absorbing rubber Granted publication date: 20230328 Pledgee: Bank of China Limited Xuancheng Branch Pledgor: Anhui Xinding polymer material Co.,Ltd. Registration number: Y2024980029414 |