CN112625319A - Flame-retardant high-temperature-resistant rubber and preparation method and application thereof - Google Patents
Flame-retardant high-temperature-resistant rubber and preparation method and application thereof Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 63
- 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 title claims abstract description 61
- 229920001971 elastomer Polymers 0.000 title claims abstract description 53
- 239000005060 rubber Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims description 8
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 22
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 18
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 18
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 18
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006229 carbon black Substances 0.000 claims abstract description 14
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012188 paraffin wax Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 10
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims abstract description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008117 stearic acid Substances 0.000 claims abstract description 10
- 239000012190 activator Substances 0.000 claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 239000013543 active substance Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 231100000053 low toxicity Toxicity 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- 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
- C08K2003/026—Phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a flame retardantThe high-temperature resistant rubber comprises the following materials in parts by weight: 100 parts of nitrile rubber, 8.3-9.8 parts of activator and stearic acid CH3(CH2)162.6-3.5 parts of COOH, 3.0-5.1 parts of anti-aging agent, 0.15-0.22 part of paraffin, 92-110 parts of flame retardant, 1-3 parts of black paste, 26.6-37.2 parts of reinforcing agent, 16-25 parts of softener and 6.7-9.4 parts of accelerator. The flame-retardant high-temperature-resistant rubber achieves flame-retardant and high-temperature-resistant performances through interaction of magnesium hydroxide, melamine cyanurate, red phosphorus and nitrile rubber, and is better in heat insulation effect due to the fact that carbon black is not used and white carbon black is used.
Description
Technical Field
The invention belongs to the technical field of sole materials, and particularly relates to flame-retardant high-temperature-resistant rubber as well as a preparation method and application thereof.
Background
With the influence of greenhouse benefits in recent years, forest and grassland fires frequently occur. When a fire fighter faces a fire, the fire fighter needs to wear fireproof and flame-retardant protective clothing and protective shoes, so that the fire fighter can protect the safety of the fire fighter. The protective shoes need to have the fire prevention fire-retardant effect, because rubber has the heat-labile, characteristics of easily burning, when putting out a fire, the rubber of sole often causes the deformation or the burning of whole shoes because of high temperature, is difficult to satisfy the safety protection demand.
Disclosure of Invention
The invention aims to provide a flame-retardant high-temperature-resistant rubber, which overcomes the technical problems in the prior art.
The invention also aims to provide a preparation method of the flame-retardant high-temperature-resistant rubber, which is simple in process and easy to prepare.
The invention also aims to provide application of the flame-retardant high-temperature-resistant rubber, which can be suitable for soles of protective shoes.
Therefore, the technical scheme provided by the invention is as follows:
the flame-retardant high-temperature-resistant rubber comprises the following materials in parts by weight: 100 parts of nitrile rubber, 8.3-9.8 parts of activator and stearic acid CH3(CH2)162.6-3.5 parts of COOH, 3.0-5.1 parts of anti-aging agent, 0.15-0.22 part of paraffin, 92-110 parts of flame retardant, 1-3 parts of black paste, 26.6-37.2 parts of reinforcing agent, 16-25 parts of softener and 6.7-9.4 parts of accelerator.
The flame retardant consists of 76-84 parts of magnesium hydroxide, 8-14 parts of melamine cyanurate and 8-12 parts of red phosphorus.
The activator consists of 4.5 to 5.5 parts of zinc oxide and 3.8 to 4.3 parts of magnesium oxide.
The anti-aging agent consists of 0.6-1.2 parts of anti-aging agent MB, 0.8-1.5 parts of anti-aging agent 4010NA and 1.6-2.4 parts of anti-aging agent RD.
The reinforcing agent consists of 25 to 35 portions of white carbon black and 1.6 to 2.2 portions of Si-69 liquid.
The softener is dioctyl phthalate.
The accelerator consists of 1.6 to 2.2 parts of accelerator DTDM, 1.8 to 2.4 parts of accelerator TT, 1.6 to 2.3 parts of accelerator DM and 1.7 to 2.5 parts of accelerator ZDEC.
The flame-retardant high-temperature-resistant rubber comprises the following materials in parts by weight: 100 parts of nitrile rubber, 9 parts of an active agent and stearic acid CH3(CH2)163 parts of COOH, 4 parts of anti-aging agent, 0.2 part of paraffin, 100 parts of flame retardant, 2 parts of black paste, 37 parts of reinforcing agent, 20 parts of softener and 8 parts of accelerator.
A preparation method of flame-retardant high-temperature-resistant rubber comprises the following steps:
step 1) adding the nitrile rubber, magnesium hydroxide and red phosphorus in a formula ratio into a kneader for mixing to obtain master batch, controlling the temperature not to exceed 60 ℃, and cooling to obtain sheets;
and 2) mixing the other materials with the formula amount with the master batch to obtain a mixed rubber.
An application of flame-retardant high-temperature-resistant rubber for protecting shoe soles.
The invention has the beneficial effects that:
the flame-retardant high-temperature-resistant rubber provided by the invention achieves the flame-retardant and high-temperature-resistant performances through the interaction of magnesium hydroxide, melamine cyanurate, red phosphorus and nitrile rubber, and has better heat insulation effect because carbon black is not used and white carbon black is used.
The magnesium hydroxide is a novel filling type flame retardant, releases bound water when heated and decomposed, absorbs a large amount of latent heat, reduces the surface temperature of a synthetic material filled with the magnesium hydroxide in flame, and has the effects of inhibiting the decomposition of a polymer and cooling generated combustible gas; the melamine cyanurate has low toxicity, high flame retardant efficiency, strong applicability, good high temperature resistance, good thermal stability, and is one of the most representative rubbers with excellent comprehensive properties such as high temperature resistance, physical and mechanical properties, and chemical resistance. In addition, the formula does not contain materials of chlorine element, the processing process is pollution-free, and the requirement of environmental protection is met.
As will be described in further detail below.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. The terminology used in the description of the exemplary embodiments is not intended to be limiting of the invention.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the embodiment provides a flame-retardant high-temperature-resistant rubber which comprises the following materials in parts by weight: 100 parts of nitrile rubber, 8.3-9.8 parts of activator and stearic acid CH3(CH2)162.6-3.5 parts of COOH, 3.0-5.1 parts of anti-aging agent, 0.15-0.22 part of paraffin, 92-110 parts of flame retardant, 1-3 parts of black paste, 26.6-37.2 parts of reinforcing agent, 16-25 parts of softener and 6.7-9.4 parts of accelerator.
The nitrile rubber adopted in the invention is oil-resistant and skid-resistant, is one of the most representative rubbers with excellent comprehensive performances such as high temperature resistance, physical and mechanical properties, chemical resistance and the like, and achieves the flame retardant and high temperature resistance by adding a flame retardant and other auxiliaries. The black paste is used for dyeing, is added according to different color requirements, replaces carbon black in the existing rubber with the black paste, and improves the heat insulation effect.
Example 2:
on the basis of embodiment 1, this embodiment provides a flame-retardant high-temperature-resistant rubber, which includes the following materials in parts by weight: 100 parts of nitrile rubber, 8.3 parts of activator and stearic acid CH3(CH2)162.6 parts of COOH, 3.0 parts of anti-aging agent, 0.15 part of paraffin, 92 parts of flame retardant, 1 part of black paste, 26.6 parts of reinforcing agent, 16 parts of softener and 6.7 parts of accelerator.
The preparation process of the flame-retardant high-temperature-resistant rubber comprises the following steps:
step 1) adding the nitrile rubber, magnesium hydroxide and red phosphorus in a formula ratio into a kneader for mixing to obtain master batch, controlling the temperature not to exceed 60 ℃, and cooling to obtain sheets;
and 2) mixing the other materials with the formula amount with the master batch to obtain a mixed rubber.
In this example, the active agent consisted of 4.5 parts zinc oxide and 3.8 parts magnesium oxide; the flame retardant is prepared from 76 parts of magnesium hydroxide and 8 parts of melamine cyanurate (MCA, formula C)5H3Cl3O3) And 8 parts of red phosphorus; the anti-aging agent comprises 0.6 part of anti-aging agent MB and 0.8 part of anti-aging agent 4010NA (molecular formula C)15H18N2) And 1.6 parts of an anti-aging agent RD; the reinforcing agent consists of 25 parts of white carbon black and 1.6 parts of Si-69 liquid; the softener is dioctyl phthalate (DOP, molecular formula C)24H38O4) (ii) a The accelerator consists of 1.6 parts of accelerator DTDM, 1.8 parts of accelerator TT, 1.6 parts of accelerator DM and 1.7 parts of accelerator ZDEC.
The melamine cyanurate has low toxicity, high fire retarding efficiency, high adaptability, high heat resistance and high heat stability, and magnesium hydroxide is one kind of new stuffing type fire retardant capable of releasing combined water to absorb great amount of latent heat to lower the surface temperature of the filled synthetic material in the flame and has the functions of inhibiting polymer decomposition and cooling the produced combustible gas.
The zinc oxide and the magnesium oxide are used as the active agents, so that the crosslinking density of the rubber material can be improved, the strength of the rubber is enhanced, the elongation at break and the anti-scratching strength are improved, and the heat-resistant aging performance of the rubber is greatly improved. The paraffin is used as a protective agent, so that the aging resistance of the rubber compound can be improved, and the flexibility of the rubber compound can be increased; the paraffin does not participate in the reaction in the vulcanization process, is only dissolved in the rubber, is in a supersaturated state after being vulcanized and cooled, and slowly migrates to the surface of the vulcanized rubber to form a layer of protective film to isolate the erosion of oxygen and ozone in the air, thereby playing the role of anti-aging. White carbon black is used as a reinforcing agent, and the antiskid performance can be improved.
The flame-retardant high-temperature-resistant rubber is environment-friendly, low in toxicity, high-temperature-resistant and excellent in flame-retardant property.
Example 3:
on the basis of embodiment 1, this embodiment provides a flame-retardant high-temperature-resistant rubber, which includes the following materials in parts by weight: 100 parts of nitrile rubber, 9.8 parts of activator and stearic acid CH3(CH2)163.5 parts of COOH, 5.1 parts of anti-aging agent, 0.22 part of paraffin, 110 parts of flame retardant, 3 parts of black paste, 37.2 parts of reinforcing agent, 25 parts of softener and 9.4 parts of accelerator.
In this example, the active agent consisted of 5.5 parts zinc oxide and 4.3 parts magnesium oxide; the flame retardant consists of 84 parts of magnesium hydroxide and 14 parts of melamine cyanurate (MCA, formula C)5H3Cl3O3) And 12 parts of red phosphorus; the anti-aging agent comprises 1.2 parts of anti-aging agent MB and 1.5 parts of anti-aging agent 4010NA (molecular formula C)15H18N2) And 2.4 parts of an anti-aging agent RD; the reinforcing agent consists of 35 parts of white carbon black and 2.2 parts of Si-69 liquid; the softener is dioctyl phthalate (DOP, molecular formula C)24H38O4) (ii) a The accelerator consists of 2.2 parts of accelerator DTDM, 2.4 parts of accelerator TT, 2.3 parts of accelerator DM and 2.5 parts of accelerator ZDEC.
The procedure was as in example 2.
Example 4:
on the basis of embodiment 1, the present embodiment provides a methodThe flame-retardant high-temperature-resistant rubber comprises the following materials in parts by weight: 100 parts of nitrile rubber, 8.3 parts of activator and stearic acid CH3(CH2)162.6 parts of COOH, 3.0 parts of anti-aging agent, 0.15 part of paraffin, 110 parts of flame retardant, 3 parts of black paste, 37.2 parts of reinforcing agent, 25 parts of softener and 9.4 parts of accelerator.
In this example, the active agent consisted of 4.5 parts zinc oxide and 3.8 parts magnesium oxide; the flame retardant consists of 84 parts of magnesium hydroxide and 14 parts of melamine cyanurate (MCA, formula C)5H3Cl3O3) And 12 parts of red phosphorus; the anti-aging agent comprises 0.6 part of anti-aging agent MB and 0.8 part of anti-aging agent 4010NA (molecular formula C)15H18N2) And 1.6 parts of an anti-aging agent RD; the reinforcing agent consists of 35 parts of white carbon black and 2.2 parts of Si-69 liquid; the softener is dioctyl phthalate (DOP, molecular formula C)24H38O4) (ii) a The accelerator consists of 2.2 parts of accelerator DTDM, 2.4 parts of accelerator TT, 2.3 parts of accelerator DM and 2.5 parts of accelerator ZDEC.
The procedure was as in example 2.
Example 5:
on the basis of embodiment 1, this embodiment provides a flame-retardant high-temperature-resistant rubber, which includes the following materials in parts by weight: 100 parts of nitrile rubber, 9 parts of an active agent and stearic acid CH3(CH2)163 parts of COOH, 4 parts of anti-aging agent, 0.2 part of paraffin, 100 parts of flame retardant, 2 parts of black paste, 37 parts of reinforcing agent, 20 parts of softener and 8 parts of accelerator.
In this example, the active agent consists of 5 parts zinc oxide and 4 parts magnesium oxide; the flame retardant is prepared from 80 parts of magnesium hydroxide and 10 parts of melamine cyanurate (MCA, formula C)5H3Cl3O3) And 10 parts of red phosphorus; the anti-aging agent comprises 1 part of anti-aging agent MB and 1 part of anti-aging agent 4010NA (molecular formula C)15H18N2) And 2 parts of an anti-aging agent RD; the reinforcing agent consists of 35 parts of white carbon black and 2 parts of Si-69 liquid; the softener is dioctyl phthalate (DOP, molecular formula C)24H38O4) (ii) a The accelerant consists of 2 parts of accelerant DTDM, 2 parts of accelerant TT, 2 parts of accelerant DM and 2 parts of accelerant ZDAnd (4) EC composition.
Example 6:
the embodiment provides a preparation method of flame-retardant high-temperature-resistant rubber, which comprises the following steps:
step 1) adding the nitrile rubber, magnesium hydroxide and red phosphorus in a formula ratio into a kneader for mixing to obtain master batch, controlling the temperature not to exceed 60 ℃, and cooling to obtain sheets;
and 2) mixing the other materials with the formula amount with the master batch to obtain a mixed rubber.
Because the red phosphorus has low burning point, the red phosphorus is not more than 60 ℃ during mixing; the melamine cyanurate is easy to volatilize, and after the master batch is obtained, the master batch is mixed with other materials to obtain the rubber compound.
The performance of the flame-retardant and high-temperature-resistant rubber prepared by the formulation of example 5 is tested, and the results are shown in table 1.
TABLE 1 flame-retardant high-temperature-resistant rubber test results
The damage length of each test point after the test is not more than 100mm, the self-extinguishing time from the fire is not more than 2s, and the phenomena of melting, dripping or peeling and the like are not generated.
Example 7:
the embodiment provides application of flame-retardant high-temperature-resistant rubber to soles of protective shoes.
The obtained mixed rubber material is filled into a sole mold, an oil press is used for applying pressure, vulcanization is carried out at high temperature, and the sole is obtained after pressing.
In conclusion, the flame-retardant high-temperature-resistant rubber provided by the invention achieves the flame-retardant and high-temperature-resistant performances through the interaction of the magnesium hydroxide, the melamine cyanurate, the red phosphorus and the nitrile rubber, and has better heat insulation effect due to the use of the white carbon black instead of the carbon black.
The magnesium hydroxide is a novel filling type flame retardant, releases bound water when heated and decomposed, absorbs a large amount of latent heat, reduces the surface temperature of a synthetic material filled with the magnesium hydroxide in flame, and has the effects of inhibiting the decomposition of a polymer and cooling generated combustible gas; the melamine cyanurate has low toxicity, high flame retardant efficiency, strong applicability, good high temperature resistance, good thermal stability, and is one of the most representative rubbers with excellent comprehensive properties such as high temperature resistance, physical and mechanical properties, and chemical resistance. In addition, the formula does not contain materials of chlorine element, the processing process is pollution-free, and the requirement of environmental protection is met.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (10)
1. The flame-retardant high-temperature-resistant rubber is characterized in that: the material comprises the following materials in parts by weight: 100 parts of nitrile rubber, 8.3-9.8 parts of activator and stearic acid CH3(CH2)162.6-3.5 parts of COOH, 3.0-5.1 parts of anti-aging agent, 0.15-0.22 part of paraffin, 92-110 parts of flame retardant, 1-3 parts of black paste, 26.6-37.2 parts of reinforcing agent, 16-25 parts of softener and 6.7-9.4 parts of accelerator.
2. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the flame retardant consists of 76-84 parts of magnesium hydroxide, 8-14 parts of melamine cyanurate and 8-12 parts of red phosphorus.
3. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the activator consists of 4.5 to 5.5 parts of zinc oxide and 3.8 to 4.3 parts of magnesium oxide.
4. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the anti-aging agent consists of 0.6-1.2 parts of anti-aging agent MB, 0.8-1.5 parts of anti-aging agent 4010NA and 1.6-2.4 parts of anti-aging agent RD.
5. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the reinforcing agent consists of 25 to 35 portions of white carbon black and 1.6 to 2.2 portions of Si-69 liquid.
6. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the softener is dioctyl phthalate.
7. The flame-retardant high-temperature-resistant rubber according to claim 1, wherein: the accelerator consists of 1.6 to 2.2 parts of accelerator DTDM, 1.8 to 2.4 parts of accelerator TT, 1.6 to 2.3 parts of accelerator DM and 1.7 to 2.5 parts of accelerator ZDEC.
8. A flame retardant high temperature resistant rubber according to any one of claims 1 to 7, wherein: the material comprises the following materials in parts by weight: 100 parts of nitrile rubber, 9 parts of an active agent and stearic acid CH3(CH2)163 parts of COOH, 4 parts of anti-aging agent, 0.2 part of paraffin, 100 parts of flame retardant, 2 parts of black paste, 37 parts of reinforcing agent, 20 parts of softener and 8 parts of accelerator.
9. The preparation method of the flame-retardant high-temperature-resistant rubber according to claim 2, characterized by comprising the following steps:
step 1) adding the nitrile rubber, magnesium hydroxide and red phosphorus in a formula ratio into a kneader for mixing to obtain master batch, controlling the temperature not to exceed 60 ℃, and cooling to obtain sheets;
and 2) mixing the other materials with the formula amount with the master batch to obtain a mixed rubber.
10. Use of a flame retardant high temperature resistant rubber according to any one of claims 1 to 7, wherein: used for protecting the sole of a shoe.
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| US5340867A (en) * | 1991-11-07 | 1994-08-23 | Bridgestone Corporation | Flame-retardant rubber compositions |
| CN101973445A (en) * | 2010-07-29 | 2011-02-16 | 安徽中意胶带有限责任公司 | Whole-core antiflaming conveyer belt with transition layer and production method thereof |
| CN104592605A (en) * | 2015-01-09 | 2015-05-06 | 安徽中意胶带有限责任公司 | Heat and oil resistant flame retardant thermoplastic elastomer and preparation method thereof |
| CN106750641A (en) * | 2016-11-29 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of fire-retardant nitrile rubber formula |
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2020
- 2020-12-23 CN CN202011533000.XA patent/CN112625319A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5340867A (en) * | 1991-11-07 | 1994-08-23 | Bridgestone Corporation | Flame-retardant rubber compositions |
| CN101973445A (en) * | 2010-07-29 | 2011-02-16 | 安徽中意胶带有限责任公司 | Whole-core antiflaming conveyer belt with transition layer and production method thereof |
| CN104592605A (en) * | 2015-01-09 | 2015-05-06 | 安徽中意胶带有限责任公司 | Heat and oil resistant flame retardant thermoplastic elastomer and preparation method thereof |
| CN106750641A (en) * | 2016-11-29 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of fire-retardant nitrile rubber formula |
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