CN112029310B - Special new material rubber shock pad and preparation method thereof - Google Patents
Special new material rubber shock pad and preparation method thereof Download PDFInfo
- Publication number
- CN112029310B CN112029310B CN202010942873.XA CN202010942873A CN112029310B CN 112029310 B CN112029310 B CN 112029310B CN 202010942873 A CN202010942873 A CN 202010942873A CN 112029310 B CN112029310 B CN 112029310B
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- Prior art keywords
- parts
- mixture
- shock pad
- adhesive
- new material
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 97
- 239000005060 rubber Substances 0.000 title claims abstract description 97
- 230000035939 shock Effects 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 69
- 230000001070 adhesive effect Effects 0.000 claims abstract description 69
- -1 polyethylene Polymers 0.000 claims abstract description 54
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 31
- 239000004698 Polyethylene Substances 0.000 claims abstract description 31
- 229920000573 polyethylene Polymers 0.000 claims abstract description 31
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 30
- 229920000570 polyether Polymers 0.000 claims abstract description 30
- 229920005862 polyol Polymers 0.000 claims abstract description 30
- 150000003077 polyols Chemical class 0.000 claims abstract description 30
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 28
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- LMKFATMCEGPAPC-UHFFFAOYSA-N 2-[4-amino-n-(2-hydroxyethyl)-2-nitroanilino]ethanol Chemical compound NC1=CC=C(N(CCO)CCO)C([N+]([O-])=O)=C1 LMKFATMCEGPAPC-UHFFFAOYSA-N 0.000 claims abstract description 24
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 21
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- 229920000742 Cotton Polymers 0.000 claims abstract description 20
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 20
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- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229940093500 ethoxyquin Drugs 0.000 claims abstract description 13
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- 238000003756 stirring Methods 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 43
- 239000003063 flame retardant Substances 0.000 claims description 32
- 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 30
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- DROMNWUQASBTFM-UHFFFAOYSA-N dinonyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCC DROMNWUQASBTFM-UHFFFAOYSA-N 0.000 claims description 18
- 239000004014 plasticizer Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- BVFSYZFXJYAPQJ-UHFFFAOYSA-N butyl(oxo)tin Chemical compound CCCC[Sn]=O BVFSYZFXJYAPQJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- ZBBLRPRYYSJUCZ-GRHBHMESSA-L (z)-but-2-enedioate;dibutyltin(2+) Chemical compound [O-]C(=O)\C=C/C([O-])=O.CCCC[Sn+2]CCCC ZBBLRPRYYSJUCZ-GRHBHMESSA-L 0.000 claims description 4
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 4
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- 230000000694 effects Effects 0.000 abstract description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 75
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
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- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 7
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- VOWAEIGWURALJQ-UHFFFAOYSA-N Dicyclohexyl phthalate Chemical compound C=1C=CC=C(C(=O)OC2CCCCC2)C=1C(=O)OC1CCCCC1 VOWAEIGWURALJQ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
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- 239000002699 waste material Substances 0.000 description 4
- DAGCJJZWDAVKRE-UHFFFAOYSA-N 2-(4-amino-3-nitroanilino)ethanol Chemical compound NC1=CC=C(NCCO)C=C1[N+]([O-])=O DAGCJJZWDAVKRE-UHFFFAOYSA-N 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
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- 229920002857 polybutadiene Polymers 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 2
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- 239000012948 isocyanate Substances 0.000 description 2
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- 239000002052 molecular layer Substances 0.000 description 2
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- QUGODTRVZDNSRF-UHFFFAOYSA-N 4-n-(2,3-dimethylphenyl)benzene-1,4-diamine Chemical compound CC1=CC=CC(NC=2C=CC(N)=CC=2)=C1C QUGODTRVZDNSRF-UHFFFAOYSA-N 0.000 description 1
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
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- 239000004566 building material Substances 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The application relates to a special new material rubber shock pad and a preparation method thereof, wherein the special new material rubber shock pad comprises the following components in parts by mass: 25-35 parts of foamed polyethylene; 10-20 parts of polyurethane cotton; 20-30 parts of foamed ethylene propylene rubber; 25-30 parts of cork; 10-20 parts of an adhesive; the adhesive comprises the following components in parts by mass: polyphenyl polymethylene polyisocyanate 105-; 95-105 parts of polyether polyol; 55-60 parts of phenolic resin; 0.5-1.5 parts of organic tin catalyst; 100 portions and 120 portions of organic solvent; 20-30 parts of ethylene-vinyl acetate copolymer; 0.2-0.8 part of ethoxyquin; 0.1-1 part of N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine. This application has the effect that improves rubber shock pad's shock-absorbing capacity.
Description
Technical Field
The application relates to the field of building materials, in particular to a special new material rubber shock pad and a preparation method thereof.
Background
At present, a rubber shock pad is generally formed by bonding a plurality of kinds of rubber or plastics through an adhesive under the conditions of high temperature and high pressure, the shock absorption principle of the rubber shock pad is similar to that of a spring, when a common floor slab is impacted, fluctuation and energy generated by the impact cannot be weakened, and sound can be directly transmitted to the downstairs to form noise.
The rubber shock pad can be laid between a floor slab and a floor surface and can also be used as an intermediate product to be adhered with a layer of surface layer material and laid on the surface of the floor, the vibration generated by impact is weakened by the rubber shock pad, and energy is absorbed and consumed, so that the influence on vibration and noise between adjacent floor surfaces is reduced, and a quiet and comfortable living or office environment is provided for people.
In view of the above-mentioned related technologies, the inventor thinks that there is a rubber shock pad generally formed by mixing environment-friendly rubber particles, foamed rubber particles and an adhesive under high temperature and high pressure, and people generally select a substance with a strong polarity as the adhesive to improve the adhesive force of the adhesive, and because the polarity of polyethylene, ethylene propylene rubber or butadiene rubber is low, the compatibility of the adhesive with polyethylene, ethylene propylene rubber and butadiene rubber is poor, and the adhesive interface is easy to be damaged, so that the adhesive force between the environment-friendly rubber particles and the foamed rubber particles and the adhesive is poor, the tearing strength of the rubber pad is low, and the service life of the rubber shock pad is shortened.
Disclosure of Invention
In order to improve the compatibility of materials with lower polarity, such as polyethylene, ethylene propylene rubber or butadiene rubber, and the like with an adhesive, the application provides a special novel material rubber shock pad and a preparation method thereof.
In a first aspect, the application provides a special new material rubber shock pad, which adopts the following technical scheme:
a special new material rubber shock pad comprises the following components in parts by weight:
25-35 parts of foamed polyethylene;
10-20 parts of polyurethane cotton;
20-30 parts of foamed ethylene propylene rubber;
25-30 parts of cork;
10-20 parts of an adhesive;
the adhesive comprises the following components in parts by mass:
polyphenyl polymethylene polyisocyanate 105-;
95-105 parts of polyether polyol;
55-60 parts of phenolic resin;
0.5-1.5 parts of organic tin catalyst;
100 parts of an organic solvent;
20-30 parts of ethylene-vinyl acetate copolymer;
0.2-0.8 part of ethoxyquin;
0.1-1 part of N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine.
By adopting the technical scheme, the energy generated by vibration is consumed through the porous structure by adding the foaming materials with the porous structures such as the foaming polyethylene, the foaming ethylene propylene rubber, the polyurethane cotton and the like, so that the damping effect of the rubber pad is better;
because the added foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton and the cork are all recycled waste materials, the waste rubber and plastic materials are better utilized, people do not easily generate pollution when reusing the waste rubber and plastic materials, and the requirement of environmental protection is met, so that waste is changed into valuable, and the development and progress of the society are facilitated;
the adhesive is prepared by adding polyphenyl polymethylene polyisocyanate, polyether polyol and phenolic resin, wherein the polyether polyol and the phenolic resin contain a large amount of hydroxyl, the phenolic resin also contains a large amount of phenyl, and the crosslinking and curing effects with the polyphenyl polymethylene polyisocyanate are good, so that the adhesive has good bonding performance with cork and polyurethane cotton, no formaldehyde is released after curing, and the requirement of green and environmental protection is met;
the organic tin catalyst is added to promote the phenolic resin to cure the polyphenyl polymethylene polyisocyanate and the polyether polyol, so that the reaction time of the polyphenyl polymethylene polyisocyanate and the polyether polyol is well controlled;
by adding the ethylene-vinyl acetate copolymer, the compatibility of the adhesive with polyethylene and foamed ethylene propylene rubber is improved, the bonding force of the adhesive with polyethylene and foamed ethylene propylene rubber is improved, the surface density of the special new material rubber shock pad is improved, the energy absorption capacity of a product is enhanced, the shock absorption and sound absorption effects of the product are better, the tear strength of the special new material rubber shock pad is higher, and the special new material rubber shock pad is not easy to damage in the construction process.
After the ethylene-vinyl acetate, the ethoxyquin, the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and the ethylene-vinyl acetate are used in a matching way, the ethylene-vinyl acetate promotes the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber to be further improved, so that the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber is better, and the damping and sound insulation effects of the product are better.
By adding the ethoxyquinoline and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, substances in the adhesive are kept stable and are not easy to migrate, so that the adhesive is not easy to yellow and has a good anti-aging effect.
Preferably, the adhesive also comprises the following components in parts by mass:
5-8 parts of a plasticizer.
Through adopting above-mentioned technical scheme, through adding the plasticizer, the toughness of adhesive can be improved to the plasticizer, improves low temperature compliance and the cold resistance after the adhesive solidification to make the low temperature compliance of product preferred, and then reduce the influence of temperature variation to the shock attenuation effect.
Preferably, the plasticizer comprises one or more of dinonyl phthalate, dicyclohexyl phthalate, dioctyl sebacate, N-ethyl o-p-toluenesulfonamide and diethyl phthalate.
By adopting the technical scheme, through adding one or more of dinonyl phthalate, dicyclohexyl phthalate, dioctyl sebacate, N-ethyl o-p-toluenesulfonamide and diethyl phthalate for compounding, the better plasticizing effect is achieved by adding dinonyl phthalate, dicyclohexyl phthalate, dioctyl sebacate, N-ethyl o-p-toluenesulfonamide and diethyl phthalate, so that the rubber has better low-temperature flexibility.
Preferably, the plasticizer further comprises the following components in parts by mass:
4-6 parts of dinonyl phthalate;
1-2 parts of N-ethyl o-p-toluenesulfonamide.
By adopting the technical scheme, the dinonyl phthalate and the N-ethyl o-p-toluenesulfonamide are compounded in a specific ratio, so that the dinonyl phthalate and the N-ethyl o-p-toluenesulfonamide are not easy to migrate in the adhesive, the bonding interface of the adhesive and an adherend is not easy to damage, and the bonding stability of the adhesive is better.
Preferably, the organic tin catalyst is one or more of dibutyltin dilaurate, dioctyltin dilaurate, monobutyltin oxide, dibutyltin maleate and stannous octoate.
By adopting the technical scheme, the adhesive has better curing effect by adding dibutyltin dilaurate, dioctyltin dilaurate, monobutyltin oxide, dibutyltin maleate and stannous octoate, and has better adhesive effect by adding dibutyltin dilaurate, dioctyltin dilaurate, monobutyltin oxide, dibutyltin maleate and stannous octoate.
Preferably, the polyether polyol is a flame retardant polyether polyol.
By adopting the technical scheme, the flame retardance of the product can be improved to a certain extent by adding the flame-retardant polyether polyol, so that the product is safer to use.
Preferably, the adhesive also comprises the following components in parts by mass:
and 25-35 parts of a flame retardant.
By adopting the technical scheme, the fire retardant is added, so that the product is not easy to burn when being used for floors or between floors, and accidents are reduced.
Preferably, the adhesive also comprises the following components in parts by mass:
6-8 parts of chloroprene rubber.
By adopting the technical scheme, the chloroprene rubber is a linear polymer, and when the isocyanate is subjected to crosslinking and curing, the chloroprene rubber and the isocyanate can form a mixed semi-interpenetrating network structure on a molecular layer surface, so that the strength of the adhesive is improved, and the chloroprene rubber has certain flame retardance, and further improves the flame retardant property of the product.
In a second aspect, the application provides a preparation method of a special new material rubber shock pad, which adopts the following technical scheme:
a preparation method of a special new material rubber shock pad comprises the following steps:
step 1), dissolving phenolic resin in 40-70% of organic solvent, adding polyether polyol into the organic solution of the phenolic resin, and uniformly stirring to obtain a first mixture;
step 2), dissolving polyphenyl polymethylene polyisocyanate and the rest of organic solvent, and uniformly stirring to obtain a second mixture;
step 3), adding the second mixture into the first mixture, uniformly stirring, and pumping out 80-90% of volatile organic solvent under the pressure of 0.2-0.5MPa to obtain a third mixture;
step 4), adding the organic tin catalyst into the third mixture, and uniformly stirring to obtain an adhesive;
and 5) respectively crushing foamed polyethylene, foamed ethylene propylene rubber, polyurethane cotton, cork and the like into particles, mixing the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton, the cork and the adhesive prepared in the step 4) according to a formula ratio, uniformly stirring, applying a pressure of 10-15MPa at a temperature of 90-100 ℃, and curing for 5-7h to obtain the special new material rubber shock pad.
By adopting the technical scheme, the phenolic resin is dissolved in 40-70% of organic solvent, polyether polyol is added into the organic solution of the phenolic resin, and the mixture is uniformly stirred, so that the mixing effect of the phenolic resin and the polyether polyol is good;
the polyphenyl polymethylene polyisocyanate is dissolved and the rest of organic solvent is dissolved, and the mixture is uniformly stirred, so that the polyphenyl polymethylene polyisocyanate and all the components are uniformly mixed, and the curing reaction effect is better;
the second mixture is added into the first mixture, is uniformly stirred, and 80-90% of volatile organic solvent is pumped out under the pressure of 0.2-0.5MPa, so that the components are uniformly mixed, the collision probability of the components is increased, and the curing reaction speed is increased;
the organic tin catalyst is added into the third mixture and stirred uniformly, so that the control on the curing reaction speed is enhanced, and the curing reaction of the adhesive is controlled better;
the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton, the cork and the adhesive prepared in the step 4) are mixed according to the formula proportion, the mixture is uniformly stirred, the pressure of 110 tons and 125 tons is applied, and the mixture is cured at room temperature for 24 hours, so that the components and the adhesive are uniformly mixed, and the bonding effect of the components and the adhesive is good.
Preferably, in the step 1), a flame retardant, dinonyl phthalate and N-ethyl o-p-toluenesulfonamide are added while polyether polyol is added, and the mixture is uniformly mixed to obtain a first mixture;
in the step 2), chloroprene rubber is added when the polyphenyl polymethylene polyisocyanate is added, and the mixture is uniformly mixed to obtain a second mixture.
By adopting the technical scheme, the flame retardant, the dinonyl phthalate and the N-ethyl o-p-toluenesulfonamide are also added when the polyether polyol is added, and are uniformly mixed, so that the mixing effect of the flame retardant, the dinonyl phthalate and the N-ethyl o-p-toluenesulfonamide is better, and the flame retardant effect and the low-temperature flexibility of the product are better;
when the polyphenyl polymethylene polyisocyanate is added, the chloroprene rubber is also added and uniformly mixed, so that the stability of each component is better while the better stability of each component is kept.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the ethylene-vinyl acetate, the ethoxyquin, the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and the ethylene-vinyl acetate are used in a matching way, the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber is better, and thus the damping and sound insulation effects of the product are better.
2. Through compounding dinonyl phthalate and N-ethyl o-p-toluenesulfonamide in a specific ratio, the bonding interface of the adhesive and an adherend is not easily damaged, so that the bonding stability of the adhesive is better.
3. By adding the flame retardant, the product is not easy to burn when being used for floors or between floors, thereby reducing the occurrence of accidents.
4. By adding the chloroprene rubber, a mixed semi-interpenetrating network structure of a molecular layer can be formed, so that the strength of the adhesive is improved, and the chloroprene rubber has certain flame retardance, so that the flame retardance of the product is further improved.
Detailed Description
The information on the source of each raw material component in the following examples and comparative examples is shown in Table 1
TABLE 1
Examples 1 to 4
The application discloses special new material rubber shock pad, including following component:
foamed polyethylene, polyurethane cotton, foamed ethylene propylene rubber, cork and adhesive.
The adhesive comprises the following components:
polyphenyl polymethylene polyisocyanate, polyether polyol, phenolic resin, an organic tin catalyst, an organic solvent, an ethylene-vinyl acetate copolymer, ethoxyquinoline and N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine.
The polyether polyol is flame-retardant polyether polyol;
the organic tin catalyst is the compound of dibutyltin dilaurate and monobutyl tin oxide;
the organic solvent is dichloromethane.
In examples 1-4, the amounts (in Kg) of the components of the adhesive are specified in Table 2
TABLE 2
In examples 1-4, the amounts (in Kg) of the ingredients of the new material rubber cushion are shown in Table 3
TABLE 3
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Foamed polyethylene | 20 | 23 | 27 | 30 |
| Polyurethane cotton | 10 | 12 | 16 | 20 |
| Foamed ethylene propylene rubber | 20 | 22 | 27 | 30 |
| Cork wood | 25 | 27 | 29 | 30 |
| Adhesive agent | 10 | 13 | 16 | 20 |
The preparation method of the special new material rubber shock pad comprises the following specific steps:
step 1), adding phenolic resin, an ethylene-vinyl acetate copolymer, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and 60% of dichloromethane into a first stirring kettle, adding flame-retardant polyether polyol into a dichloromethane solution of the phenolic resin, the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, stirring for 20min at a speed of 100r/min, and uniformly stirring to obtain a first mixture;
step 2), adding polyphenyl polymethylene polyisocyanate and ethoxyquin and the rest dichloromethane into a second stirring kettle, stirring for 15min at the speed of 100r/min, and uniformly stirring to obtain a second mixture;
step 3), adding the second mixture into the first mixture, stirring for 5min at the speed of 100r/min, uniformly stirring, and pumping out 85% of volatile dichloromethane under the pressure of 0.3MPa to obtain a third mixture;
and 4) adding dibutyltin dilaurate and monobutyl tin oxide into the third mixture, and uniformly stirring to obtain the adhesive.
And 5) respectively crushing foamed polyethylene, foamed ethylene propylene rubber, polyurethane cotton and cork into particles by using a crusher, then putting the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton, the cork and the adhesive prepared in the step 4) into a mould barrel according to the proportion of the formula, stirring at 800r/min for 30min, uniformly stirring, conveying the materials into a mould cavity, raising the temperature to 95 ℃, applying the pressure of 12MPa, and curing for 6h to obtain the special novel material rubber shock pad.
Example 5
The embodiment of the application discloses an adhesive:
compared with example 2, the difference is only that:
step 1), adding phenolic resin, an ethylene-vinyl acetate copolymer, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and 40% of dichloromethane into a first stirring kettle, adding flame-retardant polyether polyol into a dichloromethane solution of the phenolic resin, the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, stirring for 15min at a speed of 100r/min, and uniformly stirring to obtain a first mixture;
step 2), adding polyphenyl polymethylene polyisocyanate and ethoxyquin and the rest dichloromethane into a second stirring kettle, stirring for 10min at the speed of 100r/min, and uniformly stirring to obtain a second mixture;
step 3), adding the second mixture into the first mixture, stirring for 4min at the speed of 100r/min, and pumping out 80% of volatile dichloromethane under the pressure of 0.2MPa to obtain a third mixture;
and 5) respectively crushing foamed polyethylene, foamed ethylene propylene rubber, polyurethane cotton and cork into particles by using a crusher, then putting the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton, the cork and the adhesive prepared in the step 4) into a mould barrel according to the proportion of the formula, stirring at 800r/min for 20min, uniformly stirring, conveying the materials into a mould cavity, raising the temperature to 90 ℃, applying the pressure of 10MPa, and curing for 7h to obtain the special novel material rubber shock pad.
Example 6
The embodiment of the application discloses an adhesive:
compared with example 2, the difference is only that:
step 1), adding phenolic resin, an ethylene-vinyl acetate copolymer, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and 70% of dichloromethane into a first stirring kettle, adding flame-retardant polyether polyol into a dichloromethane solution of the phenolic resin, the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, stirring for 25min at a speed of 100r/min, and uniformly stirring to obtain a first mixture;
step 2), adding polyphenyl polymethylene polyisocyanate and ethoxyquin and the rest dichloromethane into a second stirring kettle, stirring for 20min at the speed of 100r/min, and uniformly stirring to obtain a second mixture;
step 3), adding the second mixture into the first mixture, stirring for 7min at the speed of 100r/min, and pumping out 90% of volatile dichloromethane under the pressure of 0.2MPa to obtain a third mixture;
and 5) respectively crushing foamed polyethylene, foamed ethylene propylene rubber, polyurethane cotton and cork into particles by using a crusher, then putting the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton, the cork and the adhesive prepared in the step 4) into a mould barrel according to the proportion of the formula, stirring at 800r/min for 35min, uniformly stirring, conveying the materials into a mould cavity, raising the temperature to 100 ℃, applying the pressure of 15MPa, and curing for 5h to obtain the special novel material rubber shock pad.
Examples 7 to 13
The application discloses special new material rubber shock pad.
The only difference from example 2 is:
the special new material rubber shock pad still includes:
and (3) a plasticizer.
The plasticizer is one or two of dinonyl phthalate, dicyclohexyl phthalate and N-ethyl o-p-toluenesulfonamide.
In examples 7 to 13, the amounts (in Kg) of the plasticizer components added are specified in Table 4
TABLE 4
Selecting dinonyl phthalate, dicyclohexyl phthalate and N-ethyl o-p-toluenesulfonamide according to a formula, adding the dinonyl phthalate, the dicyclohexyl phthalate and the N-ethyl o-p-toluenesulfonamide in the step 1) and the flame-retardant polyether polyol into a first stirring kettle, and uniformly stirring.
Examples 14 to 17
The application discloses special new material rubber shock pad.
The only difference from example 2 is:
the special new material rubber shock pad still includes:
and (3) a flame retardant.
The flame retardant is aluminum hydroxide.
In examples 14 to 17, the amounts (in Kg) of the flame retardants added are specified in Table 5
TABLE 5
| Example 14 | Example 15 | Example 16 | Example 17 | |
| Aluminum hydroxide | 25 | 28 | 32 | 35 |
Adding the aluminum hydroxide and the flame-retardant polyether polyol into the first stirring kettle in the step 1), and uniformly stirring.
Examples 18 to 21
The application discloses special new material rubber shock pad.
The only difference from example 2 is:
the special new material rubber shock pad still includes:
neoprene rubber.
In examples 18 to 21, the amount (in Kg) of chloroprene rubber added is shown in Table 6
TABLE 6
| Example 18 | Example 19 | Example 20 | Example 21 | |
| Neoprene | 6 | 6.6 | 7.3 | 8 |
And (3) adding the chloroprene rubber and the polyphenyl polymethylene polyisocyanate into a second stirring kettle in the step 2), and uniformly stirring.
Examples 22 to 25
The application discloses special new material rubber shock pad.
The only difference from example 2 is:
the special new material rubber shock pad still includes:
plasticizer, aluminum hydroxide and chloroprene rubber.
The plasticizer is the compound of dinonyl phthalate and N-ethyl o-p-toluenesulfonamide.
In examples 22 to 25, the amounts (in Kg) of plasticizer, aluminum hydroxide and chloroprene rubber added are shown in Table 7, Table 7
Adding dinonyl phthalate, N-ethyl o-p-toluenesulfonamide and aluminum hydroxide in the step 1) and the flame-retardant polyether polyol into a first stirring kettle, and uniformly stirring.
And (3) adding the chloroprene rubber and the polyphenyl polymethylene polyisocyanate into a second stirring kettle in the step 2), and uniformly stirring.
Comparative example 1
In contrast to example 2, the only difference is:
in the step 1), the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine are replaced by the same amount of dichloromethane.
In the step 2), dichloromethane is equivalently used to replace ethoxyquinoline.
Comparative example 2
In contrast to example 2, the only difference is:
in the step 1), dichloromethane is adopted to replace N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine equivalently.
In the step 2), dichloromethane is equivalently used to replace ethoxyquinoline.
Comparative example 3
In contrast to example 2, the only difference is:
in step 1), ethylene-vinyl acetate copolymer is replaced with equal amount of dichloromethane.
In the step 2), dichloromethane is equivalently used to replace ethoxyquinoline.
Comparative example 4
In contrast to example 2, the only difference is:
in the step 1), the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine are replaced by the same amount of dichloromethane.
Comparative example 5
In contrast to example 2, the only difference is:
in step 1), ethylene-vinyl acetate copolymer is replaced with equal amount of dichloromethane.
Comparative example 6
In contrast to example 2, the only difference is:
in the step 1), dichloromethane is adopted to replace N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine equivalently.
Comparative example 7
In contrast to example 2, the only difference is:
in the step 2), dichloromethane is equivalently used to replace ethoxyquinoline.
Comparative example 8
In contrast to example 2, the only difference is:
in the step 1), the ethylene-vinyl acetate copolymer and the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine are replaced by the same amount of dichloromethane.
In the step 2), dichloromethane is equivalently used to replace ethoxyquinoline.
In the step 5), the foamed polyethylene and the foamed ethylene propylene rubber are replaced by the same amount of polyurethane cotton.
Comparative example 9
In contrast to example 2, the only difference is:
in the step 5), N' -xylyl-p-phenylenediamine is used for replacing ethoxyquinoline in an equivalent manner.
Comparative example 10
In contrast to example 2, the only difference is:
in the step 5), N' -ditolyl-p-phenylenediamine is used to replace N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine in equal amount.
Comparative example 11
In contrast to example 2, the only difference is:
in the step 5), polyether polyol is used to replace flame-retardant polyether polyol in equal amount.
Experiment 1
The benzene, toluene and xylene contents (g/kg) of the special new material rubber shock absorption pad prepared in each example and each comparative example are detected according to GB 18583-.
Experiment 2
The total volatile organic compound and formaldehyde content (mg/m) of the special new material rubber shock absorption pad prepared in each example and comparative example is detected according to GB 18587-2·h)。
Experiment 3
The combustion performance grade of the special new material rubber shock absorption pad prepared in each embodiment and comparative example is detected according to GB/T8624-2012 'construction material and product combustion performance grade'.
Experiment 4
The tear strength (kN/m) of the special new material rubber shock-absorbing pad prepared in each example and comparative example was tested according to ASTM D624 Standard test method for tear Strength of conventional vulcanized rubber and thermoplastic Elastomers.
Experiment 5
The stress (MPa) of the special new material rubber shock pad prepared in each example and each comparative example when the compression rate reaches 50% is detected according to the method of HG/T3843-2008 & ltvulcanized rubber short-time static compression test method'.
Experiment 6
The normalized impact sound pressure level of the special new material rubber shock pad prepared in each embodiment and comparative example under different impact frequencies of 100Hz, 200Hz, 400Hz, 800Hz and 1600Hz is detected according to GB/T50121-2005 'building sound insulation evaluation Standard' which weighs the normalized impact sound pressure level of 78dB on the standard floor slab, and the impact sound pressure level improvement quantity Delta L represents the normalized impact sound pressure level improvement quantity (Hz), and the thickness of the sample is 1.5 mm.
The assay data for experiments 1-3 are detailed in Table 8.
The assay data for experiments 4-6 are detailed in Table 9.
TABLE 8
TABLE 9
According to the data in table 8, the amounts of benzene, toluene, xylene, total volatile organic compounds and formaldehyde in the novel special material rubber shock pads prepared in the examples and the comparative examples all meet the standard.
According to the comparison of the data of comparative example 2 and comparative example 1 in Table 9, the tear strength of the rubber shock pad made of the special new material is obviously improved by adding the ethylene-vinyl acetate copolymer, because the ethylene-vinyl acetate copolymer is added, the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene-propylene rubber is improved, the bonding strength of the adhesive with the foamed polyethylene and the foamed ethylene-propylene rubber is improved, thereby improving the tearing strength of the special new material rubber shock pad, increasing the stress required by the deformation of the special new material rubber shock pad when the compression ratio reaches 50 percent, the force required by the compression deformation of the special new material rubber shock pad is improved, the compressive strength of the special new material rubber shock pad is improved, the impact sound pressure level improvement is increased, and the damping and sound insulation performance of the special new material rubber shock pad is proved to be enhanced.
According to the comparison of the data of comparative examples 3 and 4 and comparative example 1 in Table 9, the tear strength, stress at 50% compression and impact sound level improvement of the new special material rubber shock pad are not greatly changed by adding N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine or ethoxyquinoline, which proves that the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine or ethoxyquinoline has little influence on the adhesion between the adhesive and the rubber in the new special material rubber shock pad and the shock-absorbing and sound-insulating functions of the new special material rubber shock pad.
According to the comparison of the data of comparative example 5, comparative example 3 and comparative example 4 in table 9, the tear strength, stress when reaching 50% compression ratio and impact sound pressure level improvement of the new special material rubber shock pad are not greatly changed by adding N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and ethoxyquin, which proves that the combination of N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine and ethoxyquin has little influence on the adhesive force between the adhesive and the rubber in the new special material rubber shock pad and the shock absorption and sound insulation function of the new special material rubber shock pad.
According to the comparison of the data of comparative example 6 and comparative example 2 in table 9, by adding ethoxyquin and ethylene-vinyl acetate, the tear strength, the stress when reaching 50% of compression ratio and the impact sound pressure level improvement of the special new material rubber shock pad are improved to a certain extent, and because the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber in the special new material rubber shock pad is further improved, the adhesion of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber is further improved, so that the tear strength of the special new material rubber shock pad is improved, and the shock absorption and sound insulation performance is improved to a certain extent.
According to the comparison of the data of comparative example 7 and comparative example 2 in table 9, the tear strength, stress when reaching 50% compression ratio and impact sound level improvement of the new special material rubber shock pad are not greatly changed by adding N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine to the ethylene-vinyl acetate, which proves that the impact absorption and sound insulation function of the new special material rubber shock pad and the adhesive force between the adhesive and the rubber in the new special material rubber shock pad are not greatly affected by the N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine to the ethylene-vinyl acetate.
As shown by comparing the data of example 2 with those of comparative examples 5, 6 and 7 in Table 9, the tearing strength of the special new material rubber shock pad is further improved by adding N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, ethoxyquin and ethylene-vinyl acetate for matching, because the compatibility of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber is further improved, the bonding strength of the adhesive with the foamed polyethylene and the foamed ethylene propylene rubber is further improved, thereby further enhancing the tearing strength of the special new material rubber shock pad, further improving the stress and impact sound pressure level improvement amount when the special new material rubber shock pad reaches the compression ratio of 50 percent, the compression strength of the special new material rubber shock pad is further improved, and the shock absorption and sound insulation performance of the special new material rubber shock pad is further improved.
According to the comparison of the data of examples 10 to 13 and examples 7 to 9 in Table 9, dinonyl phthalate and N-ethyl o-p-toluenesulfonamide were only mixed in a specific ratio to further improve the impact sound pressure level, and the impact sound pressure level of the new special material rubber cushion could not be improved by changing either component or ratio.
According to the comparison of the data of the examples 14 to 17 and the example 2 in tables 8 and 9, the tearing strength of the special new material rubber shock pad is not greatly changed by adding the aluminum hydroxide, and the influence on the bonding strength of the adhesive, the foamed polyethylene and the foamed ethylene propylene rubber after adding the aluminum hydride in a specific proportion is proved to be small, the combustion performance grade of the special new material rubber shock pad is reduced, the flame retardant property of the rubber is proved to be improved, and the use safety of the special new material rubber shock pad is improved.
According to the comparison of the data of comparative example 11 and example 2 in tables 8 and 9, the flame retardant performance grade effect of the special new material rubber shock pad is improved by adding the flame retardant polyoxyethylene ether, so that the flame retardant effect of the special new material rubber shock pad is improved.
According to the comparison of the data of the examples 18 to 21 and the example 2 in tables 8 and 9, the flame retardant performance of the special new material rubber shock pad is further improved in an equal grade manner by adding the chloroprene rubber, so that the flame retardant effect of the special new material rubber shock pad is better, the tear strength of the special new material rubber shock pad is improved with the stress when the compression ratio reaches 50%, and the strength of the special new material rubber shock pad is improved because the chloroprene rubber is a linear polymer and a semi-interpenetrating network structure is formed when the adhesive is cured.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (3)
1. A special new material rubber shock pad which is characterized in that: the paint comprises the following components in parts by mass:
25-35 parts of foamed polyethylene;
10-20 parts of polyurethane cotton;
20-30 parts of foamed ethylene propylene rubber;
25-30 parts of cork;
10-20 parts of an adhesive;
the adhesive comprises the following components in parts by mass:
polyphenyl polymethylene polyisocyanate 105-;
95-105 parts of polyether polyol;
55-60 parts of phenolic resin;
0.5-1.5 parts of organic tin catalyst;
100 parts of an organic solvent;
20-30 parts of ethylene-vinyl acetate copolymer;
0.2-0.8 part of ethoxyquin;
0.1-1 part of N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine;
6-8 parts of chloroprene rubber;
5-8 parts of a plasticizer;
25-35 parts of a flame retardant;
the polyether polyol is flame-retardant polyether polyol;
the plasticizer comprises the following components in parts by weight:
4-6 parts of dinonyl phthalate;
1-2 parts of N-ethyl o-p-toluenesulfonamide.
2. The special new material rubber shock pad of claim 1, wherein: the organic tin catalyst is one or more of dibutyltin dilaurate, dioctyltin dilaurate, monobutyltin oxide, dibutyltin maleate and stannous octoate.
3. The method for preparing the special new material rubber shock pad of claim 1, comprising the following steps:
step 1), dissolving phenolic resin, ethylene-vinyl acetate copolymer and N, N-bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine in 40-70% of organic solvent, adding flame-retardant polyether polyol into the organic solution of the phenolic resin, and uniformly stirring to obtain a first mixture;
step 2), dissolving polyphenyl polymethylene polyisocyanate and ethoxyquin with the rest of organic solvent, and uniformly stirring to obtain a second mixture;
step 3), adding the second mixture into the first mixture, uniformly stirring, and pumping out 80-90% of volatile organic solvent under the pressure of 0.2-0.5MPa to obtain a third mixture;
step 4), adding the organic tin catalyst into the third mixture, and uniformly stirring to obtain an adhesive;
step 5), respectively crushing foamed polyethylene, foamed ethylene propylene rubber, polyurethane cotton and cork into particles, mixing the foamed polyethylene, the foamed ethylene propylene rubber, the polyurethane cotton and the cork with the adhesive prepared in the step 4) according to a formula ratio, uniformly stirring, applying a pressure of 10-15MPa at a temperature of 90-100 ℃, and curing at room temperature for 5-7 hours to obtain the special new material rubber shock pad;
in the step 1), a flame retardant, dinonyl phthalate and N-ethyl o-p-toluenesulfonamide are added when the flame-retardant polyether polyol is added, and the mixture is uniformly mixed to obtain a first mixture; in the step 2), chloroprene rubber is added when the polyphenyl polymethylene polyisocyanate is added, and the mixture is uniformly mixed to obtain a second mixture.
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| CN1201805A (en) * | 1997-11-28 | 1998-12-16 | 许助生 | Manufacture of foamed body of cork and ethylene-vinyl acetate copolymer |
| CN102718940A (en) * | 2012-06-28 | 2012-10-10 | 广州高金技术产业集团有限公司 | High-bonding-strength and high-temperature-resisting phenolic resin modified polyurethane adhesive and preparation method thereof |
| CN103756165A (en) * | 2014-01-15 | 2014-04-30 | 涂秀琼 | Preparation method of rubber softwood material |
| CN107542249A (en) * | 2017-10-09 | 2018-01-05 | 常州莱尚纺织品有限公司 | A kind of cork-rubber composite floor board |
| CN109135596A (en) * | 2018-08-02 | 2019-01-04 | 广州市匠源橡塑新材料有限公司 | A kind of shockproof soundproof rubber pad and the method with the rubber pad laying floor |
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2020
- 2020-09-09 CN CN202010942873.XA patent/CN112029310B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1201805A (en) * | 1997-11-28 | 1998-12-16 | 许助生 | Manufacture of foamed body of cork and ethylene-vinyl acetate copolymer |
| CN102718940A (en) * | 2012-06-28 | 2012-10-10 | 广州高金技术产业集团有限公司 | High-bonding-strength and high-temperature-resisting phenolic resin modified polyurethane adhesive and preparation method thereof |
| CN103756165A (en) * | 2014-01-15 | 2014-04-30 | 涂秀琼 | Preparation method of rubber softwood material |
| CN107542249A (en) * | 2017-10-09 | 2018-01-05 | 常州莱尚纺织品有限公司 | A kind of cork-rubber composite floor board |
| CN109135596A (en) * | 2018-08-02 | 2019-01-04 | 广州市匠源橡塑新材料有限公司 | A kind of shockproof soundproof rubber pad and the method with the rubber pad laying floor |
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| 木材-橡胶复合材料及其在静音地板中的应用研究;孙伟圣;《中国优秀博硕士学位论文全文数据库(博士)工程科技Ⅰ辑》;20100115(第1期);第32-85页 * |
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