CN111944246A - High-temperature-resistant oil-resistant high-flame-retardant environment-friendly foaming adhesive mixture - Google Patents
High-temperature-resistant oil-resistant high-flame-retardant environment-friendly foaming adhesive mixture Download PDFInfo
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- CN111944246A CN111944246A CN202010857838.8A CN202010857838A CN111944246A CN 111944246 A CN111944246 A CN 111944246A CN 202010857838 A CN202010857838 A CN 202010857838A CN 111944246 A CN111944246 A CN 111944246A
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- 238000005187 foaming Methods 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 239000003063 flame retardant Substances 0.000 title claims abstract description 22
- 239000000853 adhesive Substances 0.000 title claims description 5
- 230000001070 adhesive effect Effects 0.000 title claims description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 20
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 20
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 18
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 18
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008117 stearic acid Substances 0.000 claims abstract description 18
- 239000011325 microbead Substances 0.000 claims abstract description 17
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 14
- QOKYJGZIKILTCY-UHFFFAOYSA-J hydrogen phosphate;zirconium(4+) Chemical compound [Zr+4].OP([O-])([O-])=O.OP([O-])([O-])=O QOKYJGZIKILTCY-UHFFFAOYSA-J 0.000 claims abstract description 14
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 14
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 14
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims abstract description 14
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 13
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 13
- 239000011593 sulfur Substances 0.000 claims abstract description 13
- 239000011787 zinc oxide Substances 0.000 claims abstract description 13
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 10
- 229920005555 halobutyl Polymers 0.000 claims abstract description 10
- 229920001821 foam rubber Polymers 0.000 claims abstract description 9
- 239000011256 inorganic filler Substances 0.000 claims abstract description 7
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 7
- 229920001195 polyisoprene Polymers 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 25
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 20
- 239000003963 antioxidant agent Substances 0.000 claims description 18
- 230000003078 antioxidant effect Effects 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 10
- 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 9
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 9
- 229920005557 bromobutyl Polymers 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 3
- 229920005556 chlorobutyl Polymers 0.000 claims description 2
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 239000006260 foam Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 238000004513 sizing Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000032683 aging Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/22—Expandable microspheres, e.g. Expancel®
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2323/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
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- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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Abstract
The invention provides a high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture, belonging to the technical field of foam tires. The paint comprises the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate copolymer, 0-50 parts of halogenated butyl rubber, 0-50 parts of polyisoprene rubber, 0-40 parts of ethylene propylene diene monomer, 0.2-1 part of LDPE, 3-5 parts of carbon black, 5-10 parts of zirconium hydrogen phosphate and an inorganic filler: 5-100 parts of zinc oxide, 2-5 parts of stearic acid, 1-1.5 parts of stearic acid, 2-4 parts of an anti-aging agent, 0.5-1 part of sulfur, 1-3 parts of TB710, 1-3 parts of an accelerator, 1-2 parts of a homogenizing agent and 3-5 parts of physical foaming microbeads EM. After the foaming agent is implemented, the foaming product can meet the American UL 94HB standard, and can meet the market use in the aspects of high temperature resistance and oil resistance compared with the existing market products.
Description
Technical Field
The invention belongs to the technical field of foaming tires, and particularly relates to a high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foaming rubber mixture.
Background
Most of the foamed tires in the current market still do not pay attention to the environmental protection, flame retardant and safety performance, and the high temperature resistance and oil resistance of the foamed tires are poor (the shrinkage is serious), so that the produced products have serious deformation and short service life in the use process.
Most of tires in the current market cannot solve the problems that the foamed tire is too large in deformation after being used for a period of time, and the foamed material adopting similar components is too large in compression deformation in the using process and cannot meet the use requirements. The products on the market at present have no effective available design on flame retardance, oil resistance and high temperature resistance.
Disclosure of Invention
In order to solve the problem that products in the current market have no effective available design in flame retardance, oil resistance and high temperature resistance, the invention adopts the following technical scheme:
a high-flame-retardant environment-friendly foaming adhesive mixture resistant to high temperature and oil comprises the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate copolymer (EVM), 0-50 parts of halogenated butyl rubber (BIIR), 0-50 parts of polyisoprene rubber (NR), 0-40 parts of Ethylene Propylene Diene Monomer (EPDM), 0.2-1 part of LDPE, 3-5 parts of carbon black, 5-10 parts of zirconium hydrogen phosphate and an inorganic filler: 5-100 parts of zinc oxide, 2-5 parts of stearic acid, 1-1.5 parts of stearic acid, 2-4 parts of an anti-aging agent, 0.5-1 part of sulfur, 1-3 parts of TB710, 1-3 parts of an accelerator, 1-2 parts of a homogenizing agent and 3-5 parts of physical foaming microbeads EM.
The more preferable technical scheme is that the high-flame-retardant environment-friendly foaming glue mixture with high temperature resistance and oil resistance comprises the following components in parts by weight: 20-30 parts of ethylene-vinyl acetate copolymer, 40-50 parts of halogenated butyl rubber, 40-50 parts of polyisoprene rubber, 20-40 parts of ethylene propylene diene monomer, 0.5-1 part of LDPE, 3-5 parts of carbon black, 5-10 parts of zirconium hydrogen phosphate and an inorganic filler: 5-100 parts of zinc oxide, 2-5 parts of stearic acid, 1-1.5 parts of stearic acid, 2-4 parts of an anti-aging agent, 0.5-1 part of sulfur, 1-3 parts of TB710, 1-3 parts of an accelerator, 1-2 parts of a homogenizing agent and 3-5 parts of physical foaming microbeads EM.
Further, the halogenated butyl rubber is chlorinated butyl rubber or brominated butyl rubber.
Further, the inorganic filler is a mixture of light calcium carbonate and diatomite.
Furthermore, the antioxidant is a mixture of any two or three of antioxidant AFS, antioxidant BHT and antioxidant SP.
Further, the accelerator is a mixture of any two or three of accelerator EM33, accelerator TS and accelerator D.
Further, the homogenizing agent is RH150 or AD 1401.
The invention also provides a preparation method of the high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture, which comprises the following steps:
starting an internal mixer, adding halogenated butyl rubber and ethylene propylene diene monomer rubber into an internal mixing chamber, then pressing an upper plug downwards, adding diatomite, pressing the upper plug downwards until the temperature rises to 120 ℃, then lifting the upper plug for purging, re-lifting the upper plug downwards until the temperature reaches 145 ℃, and discharging to obtain rubber A;
starting an internal mixer, adding polyisoprene rubber and an ethylene-vinyl acetate copolymer into an internal mixing chamber, then pressing down by using an upper plug, adding carbon black and calcium carbonate, pressing down by using the upper plug until the temperature rises to 110 ℃, then lifting the upper plug for purging, pressing down by using the upper plug again until the temperature reaches 135 ℃, and discharging to obtain rubber B;
starting an internal mixer, putting the rubber A and the rubber B into an internal mixing chamber, pressing down the upper plug for 20 seconds, adding zirconium hydrogen phosphate, zinc oxide, stearic acid, an anti-aging agent and a homogenizing agent, pressing down the upper plug until the temperature rises to 110 ℃, then lifting up the upper plug for purging, pressing down the upper plug again until the temperature reaches 145 ℃, discharging the upper plug, turning over the upper plug for about 150 seconds on a belt type open mill with a roller filled with cooling water, cooling to 90-95 ℃, closing the cooling water, adding LDPE, sulfur and an accelerator into the rubber material, continuing turning over for 120 seconds, opening the cooling water, adding physical foaming microbeads, turning over for 3 minutes, and discharging to obtain the required mixed rubber.
Compared with the prior art, the invention has the beneficial effects that:
the product produced by using the mixture of the invention has a dimensional change of 3-5% after aging cooling to normal temperature at 150 ℃ for 30 min. The foaming product can meet the US UL 94HB standard, and can be improved to meet the market use in the aspects of high temperature resistance and oil resistance compared with the existing market products. The environment protection can pass the requirement of European Union standard, and the flame retardance can reach the requirement of American standard.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1:
EVM: 20 parts, BIIR 2222: 40 parts, NR 5: 20 parts, EPDM 4045: 20 parts of LDPE: 0.5 part of carbon black: 5 parts of zirconium hydrogen phosphate: 10 parts of calcium carbonate: 30 parts of diatomite: 45 parts of zinc oxide: 2 parts and stearic acid: 1 part of an antioxidant AFS: 1.5 parts of an antioxidant BHT: 1.5 parts, sulfur: 0.5 part, 1.9 parts of TB710, an accelerator EM 33: 1.2 parts, accelerator TS: 0.8 part of homogenizing agent RH 150: 2 parts of physical foaming micro-beads EM: 4.5 parts.
Starting the internal mixer, starting at the rotation speed of 55RPM, putting BIIR and EPDM into the internal mixing chamber, pressing the upper plug for 20 seconds, adding diatomite, pressing the upper plug until the temperature rises to 120 ℃, then lifting the upper plug to purge (purge all powder falling on the upper plug into the internal mixing chamber), pressing the upper plug again until the temperature reaches 145 ℃, and discharging to obtain the glue A.
Starting the internal mixer, starting at the rotation speed of 55RPM, putting NR and EVM into the internal mixing chamber, then pressing the upper ram for 20 seconds, adding carbon black and calcium carbonate, pressing the upper ram until the temperature rises to 110 ℃, then lifting the upper ram to purge (purge all powder falling on the upper ram into the internal mixing chamber), pressing the upper ram again until the temperature reaches 135 ℃, and discharging to obtain the B rubber.
Starting an internal mixer, starting the internal mixer at the rotation speed of 55RPM, putting glue A and glue B into the internal mixing chamber, pressing down the upper ram for 20 seconds, adding zirconium hydrogen phosphate, zinc oxide, stearic acid, an anti-aging agent and a homogenizing agent, pressing down the upper ram until the temperature rises to 110 ℃, then lifting up the upper ram to purge (purge all powder falling on the upper ram into the internal mixing chamber), pressing down the upper ram again until the temperature reaches 145 ℃, discharging the upper ram, turning over the upper ram on a belt-type open mill with a roller filled with cooling water for about 150 seconds (see equipment), cooling to 90-95 ℃, closing the cooling water, adding LDPE, sulfur and the accelerator into the rubber material, continuing to turn over for 120 seconds, starting the cooling water, adding physical foaming microbeads, turning over for 3 minutes, and discharging to obtain the required mixed rubber.
When the sizing material prepared by the formula is tested by a thermal dynamic analyzer, the total amount of 15PAHS is only 7PPM (German AFPS GS 2019: 01PAK requires less than 50 PPM), and the sizing material meets the standard. The combustion test data of the SGS mechanism is 36mm/min (the U.S. UL 94-2013 requires less than 40 mm/min), and the standard is met. After aging and cooling to normal temperature at 150 ℃ for 30min, the size change is 3.37% (the OE manufacturer control standard is below 12%), and the standard is met. Thermal dynamic analysis DMA test, tan (heat generation common to evaluation materials) at 80 ℃ of 0.045(OE plant control standard below 0.10), meets the standard.
Example 2:
EVM: 30 parts, BIIR 2222: 50 parts, EPDM 4045: 20 parts of LDPE: 0.2 part of carbon black: 5 parts of zirconium hydrogen phosphate: 6 parts of calcium carbonate: 30 parts of diatomite: 45 parts of zinc oxide: 2 parts and stearic acid: 1 part of an antioxidant AFS: 2 parts of an antioxidant BHT: 1 part and sulfur: 0.5 part, 2.2 parts of TB710, an accelerator EM 33: 1.2 parts, accelerator TS: 1.0 part of homogenizing agent RH 150: 2.5 parts of physical foaming micro-bead EM: 5 parts of the raw materials.
The preparation method is the same as that of example 1, and the high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture is obtained.
When the sizing material prepared by the formula is tested by a thermal dynamic analyzer, the total amount of 15PAHS is only 7.3PPM (German AFPS GS 2019: 01PAK requires less than 50 PPM), and the sizing material meets the standard. The combustion test data of the SGS mechanism is 34mm/min (the U.S. UL 94-2013 requires less than 40 mm/min), and the standard is met. After aging and cooling to normal temperature at 150 ℃ for 30min, the size change is 3.22% (the OE manufacturer control standard is below 12%), and the standard is met. The thermal dynamic analysis DMA test, 80 ℃ tan (common for evaluating the heat generation of materials) is 0.053(OE factory control standard is below 0.10), meets the standard.
Example 3:
EVM: 30 parts, NR 5: 50 parts, EPDM 4045: 20 parts of LDPE: 1 part of carbon black: 5 parts of zirconium hydrogen phosphate: 10 parts of calcium carbonate: 30 parts of diatomite: 60 parts of zinc oxide: 3 parts of stearic acid: 0.8 part of an antioxidant AFS: 2 parts of an antioxidant BHT: 2 parts of sulfur: 1 part, 1.0 part of TB710, 1.0 part of accelerator EM 33: 1.2 parts, accelerator TS: 1.4 parts of homogenizing agent RH 150: 3 parts of physical foaming micro-beads EM: 3.5 parts.
The preparation method is the same as that of example 1, and the high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture is obtained.
When the sizing material prepared by the formula is tested by a thermal dynamic analyzer, the total amount of 15PAHS is only 8PPM (German AFPS GS 2019: 01PAK requires less than 50 PPM), and the sizing material meets the standard. The combustion test data of the SGS mechanism is 38mm/min (the U.S. UL 94-2013 requires less than 40 mm/min), and the standard is met. After aging and cooling to normal temperature at 150 ℃ for 30min, the size change is 4.52% (the OE manufacturer control standard is below 12%), and the standard is met. The thermal dynamic analysis DMA test shows that the temperature of 80 ℃ tan (commonly used for evaluating the heat generation of materials) is 0.066 (the OE factory control standard is below 0.10), and the standard is met.
Example 4:
EVM: 30 parts, NR 5: 40 parts, BIIR 2222: 40 parts of LDPE: 0.6 part of carbon black: 5 parts of zirconium hydrogen phosphate: 10 parts of calcium carbonate: 40 parts of diatomite: 60 parts of zinc oxide: 2.5 parts, stearic acid: 1 part of an antioxidant AFS: 2 parts of an antioxidant BHT: 1.5 parts, sulfur: 1 part, 1.0 part of TB710, 1.0 part of accelerator EM 33: 1.2 parts, accelerator TS: 1.4 parts of accelerator D: 1 part of homogenizing agent RH 150: 3 parts of physical foaming micro-beads EM: 3.5 parts.
The preparation method is the same as that of example 1, and the high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture is obtained.
When the sizing material prepared by the formula is tested by a thermal dynamic analyzer, the total amount of 15PAHS is only 7.8PPM (German AFPS GS 2019: 01PAK requires less than 50 PPM), and the sizing material meets the standard. The combustion test data of the SGS mechanism is 33mm/min (the U.S. UL 94-2013 requires less than 40 mm/min), and the standard is met. After aging and cooling to normal temperature at 150 ℃ for 30min, the size change is 3.95% (the OE manufacturer control standard is below 12%), and the standard is met. The thermal dynamic analysis DMA test, 80 ℃ tan (common for evaluating the heat generation of materials) at 0.057(OE plant control standard below 0.10), meets the standard.
Example 5:
EVM: 35 parts, NR 5: 45 parts, BIIR 2222: 30 parts and LDPE: 0.6 part of carbon black: 5 parts of zirconium hydrogen phosphate: 8 parts of calcium carbonate: 40 parts of diatomite: 55 parts and zinc oxide: 2.5 parts, stearic acid: 1 part of an antioxidant AFS: 2 parts of an antioxidant BHT: 1.5 parts of an anti-aging agent SP: 0.5 part, sulfur: 1 part, 1.0 part of TB710, 1.0 part of accelerator EM 33: 1.2 parts, accelerator TS: 1.4 parts of homogenizing agent RH 150: 2 parts of physical foaming micro-beads EM: 3.5 parts.
The preparation method is the same as that of example 1, and the high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foam rubber mixture is obtained.
When the sizing material prepared by the formula is tested by a thermal dynamic analyzer, the total amount of 15PAHS is only 7.6PPM (German AFPS GS 2019: 01PAK requires less than 50 PPM), and the sizing material meets the standard. The combustion test data of the SGS mechanism is 33mm/min (the U.S. UL 94-2013 requires less than 40 mm/min), and the standard is met. After aging and cooling to normal temperature at 150 ℃ for 30min, the size change is 3.86% (the OE manufacturer control standard is below 12%), and the standard is met. The thermal dynamic analysis DMA test, 80 ℃ tan (commonly used to evaluate the heat generation of materials) is 0.073(OE plant control standard is below 0.10), meeting the standard.
The invention selects the ethylene-vinyl acetate copolymer (EVM), which is a novel environment-friendly material with the content of 40-45 percent different from the EVA raw material with the vinyl acetate. (similar to the synthesis of EVA, only part of the monomers come from plants, but not petroleum extracts), so that the produced product is more environment-friendly and has a certain flame retardant effect, and a certain amount of zirconium hydrogen phosphate is added as a flame retardant; physical hydrocarbon foaming micro-beads are selected as a main foaming agent, so that the production environment pollution caused by VOCS (volatile organic Compounds) caused by the use of a chemical foaming agent is avoided; the inorganic matter is selected to be large in quantity to fill and support the bearing capacity of the foaming body.
The physical hydrocarbon foaming micro-beads are 15-40 mu m substance aggregates which can be gasified and expanded under heating (rubber vulcanization temperature), and the micro-beads can be softened and expanded by about four times (specific multiplying power can be controlled according to the using amount, the vulcanization temperature and the time) to form a hollow sphere; when the micro beads are uniformly mixed in the rubber, the three-dimensional network state molecular distance after the rubber is vulcanized can be expanded, so that the foamed rubber product which can be compressed in a large proportion and has high resilience is formed.
After the conventional EVA and NR foamed products are subjected to high temperature, the thermal aging deformation is very serious, the deformation can reach 50 percent, and when a proper amount of halogenated butyl rubber or ethylene propylene diene monomer rubber (both belong to saturated rubber with a single main chain) is added, the thermal aging resistance and the oil resistance of the conventional EVA and NR foamed products can be in the required standard range.
Because the recovery capability of the foamed rubber product is greatly reduced after the foamed rubber product is compressed at a certain frequency at a high temperature, and an anti-aging agent with pollution property cannot be added in the formula to ensure the environmental protection characteristic of the product, a proper amount of LDPE (thermoplastic material) is added in the formula to improve the extrusion recovery property of the product.
After the foaming agent is implemented, the foaming product can meet the American UL 94HB standard, and can meet the market use in the aspects of high temperature resistance and oil resistance compared with the existing market products.
Although the invention has been described herein with reference to illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (8)
1. The high-flame-retardant environment-friendly foaming adhesive mixture with high temperature resistance and oil resistance is characterized by comprising the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate copolymer, 0-50 parts of halogenated butyl rubber, 0-50 parts of polyisoprene rubber, 0-40 parts of ethylene propylene diene monomer, 0.2-1 part of LDPE, 3-5 parts of carbon black, 5-10 parts of zirconium hydrogen phosphate and an inorganic filler: 5-100 parts of zinc oxide, 2-5 parts of stearic acid, 1-1.5 parts of stearic acid, 2-4 parts of an anti-aging agent, 0.5-1 part of sulfur, 1-3 parts of TB710, 1-3 parts of an accelerator, 1-2 parts of a homogenizing agent and 3-5 parts of physical foaming microbeads EM.
2. The high-temperature-resistant oil-resistant high-flame-retardant environment-friendly foaming adhesive mixture as claimed in claim 1, which is characterized by comprising the following components in parts by weight: 20-30 parts of ethylene-vinyl acetate copolymer, 40-50 parts of halogenated butyl rubber, 40-50 parts of polyisoprene rubber, 20-40 parts of ethylene propylene diene monomer, 0.5-1 part of LDPE, 3-5 parts of carbon black, 5-10 parts of zirconium hydrogen phosphate and an inorganic filler: 5-100 parts of zinc oxide, 2-5 parts of stearic acid, 1-1.5 parts of stearic acid, 2-4 parts of an anti-aging agent, 0.5-1 part of sulfur, 1-3 parts of TB710, 1-3 parts of an accelerator, 1-2 parts of a homogenizing agent and 3-5 parts of physical foaming microbeads EM.
3. The high flame retardant environmental friendly foam rubber mixture with high temperature and oil resistance as claimed in claim 1, wherein the halogenated butyl rubber is chlorinated butyl rubber or brominated butyl rubber.
4. The high flame retardant environmental friendly foaming glue mixture with high temperature and oil resistance as claimed in claim 1, wherein the inorganic filler is a mixture of light calcium carbonate and diatomite.
5. The high flame retardant environment friendly foam rubber mixture with high temperature and oil resistance as claimed in claim 1, wherein the antioxidant is a mixture of any two or three of antioxidant AFS, antioxidant BHT and antioxidant SP.
6. The high flame retardant environmental friendly foam rubber mixture with high temperature and oil resistance as claimed in claim 1, wherein the accelerator is a mixture of any two or three of accelerator EM33, accelerator TS and accelerator D.
7. The high flame retardant environmental friendly foaming glue mixture with high temperature and oil resistance as claimed in claim 1, wherein the homogenizing agent is RH150 or AD 1401.
8. The preparation method of the high flame-retardant environment-friendly foaming glue mixture with high temperature resistance and oil resistance as claimed in any one of claims 1 to 7 is characterized by comprising the following steps:
starting an internal mixer, adding halogenated butyl rubber and ethylene propylene diene monomer rubber into an internal mixing chamber, then pressing an upper plug downwards, adding diatomite, pressing the upper plug downwards until the temperature rises to 120 ℃, then lifting the upper plug for purging, re-lifting the upper plug downwards until the temperature reaches 145 ℃, and discharging to obtain rubber A;
starting an internal mixer, adding polyisoprene rubber and an ethylene-vinyl acetate copolymer into an internal mixing chamber, then pressing down by using an upper plug, adding carbon black and calcium carbonate, pressing down by using the upper plug until the temperature rises to 110 ℃, then lifting the upper plug for purging, pressing down by using the upper plug again until the temperature reaches 135 ℃, and discharging to obtain rubber B;
starting an internal mixer, putting the rubber A and the rubber B into an internal mixing chamber, pressing down the upper plug for 20 seconds, adding zirconium hydrogen phosphate, zinc oxide, stearic acid, an anti-aging agent and a homogenizing agent, pressing down the upper plug until the temperature rises to 110 ℃, then lifting up the upper plug for purging, pressing down the upper plug again until the temperature reaches 145 ℃, discharging the upper plug, turning over the upper plug for about 150 seconds on a belt type open mill with a roller filled with cooling water, cooling to 90-95 ℃, closing the cooling water, adding LDPE, sulfur and an accelerator into the rubber material, continuing turning over for 120 seconds, opening the cooling water, adding physical foaming microbeads, turning over for 3 minutes, and discharging to obtain the required mixed rubber.
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