CN104610668A - No-coloring low-peculiar-smell flame-retardant ethylene-propylene rubber material and preparation method thereof - Google Patents
No-coloring low-peculiar-smell flame-retardant ethylene-propylene rubber material and preparation method thereof Download PDFInfo
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- CN104610668A CN104610668A CN201510066882.6A CN201510066882A CN104610668A CN 104610668 A CN104610668 A CN 104610668A CN 201510066882 A CN201510066882 A CN 201510066882A CN 104610668 A CN104610668 A CN 104610668A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a no-coloring low-peculiar-smell flame-retardant ethylene-propylene rubber material which is prepared from the following raw materials in parts by weight: 100 parts of ethylene-propylene rubber, 3-5 parts of fast-extruded carbon black, 10-30 parts of precipitation-process white carbon black, 30-50 parts of fine talcum powder, 40-60 parts of aluminum hydroxide, 20-50 parts of decabromodiphenylethane, 10-30 parts of environment-friendly antimony trioxide, 10-30 parts of zinc borate, 5-15 parts of paraffin oil, 3-8 parts of indirect-process zinc oxide, 0.5-1.5 parts of stearic acid, 2.5-4.5 parts of polyethyleneglycol, 2.5-4.5 parts of lubricant, 1-3 parts of coupling agent, 0.5-1 part of sulfur and 2-4 parts of environment-friendly accelerator. The invention also discloses a preparation method of the no-coloring low-peculiar-smell flame-retardant ethylene-propylene rubber material. The prepared rubber material has the advantages of no coloring, low peculiar smell and favorable flame retardancy.
Description
Technical field
The present invention relates to rubber parts technical field, particularly relate to a kind of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material and preparation method thereof.
Background technology
Ethylene-propylene rubber(EPR) is that consumption is only second to the third-largest synthetic rubber of styrene-butadiene rubber(SBR) and cis-1,4-polybutadiene rubber in the world, there is the valuable performances such as remarkable weathering resistance, resistance to ozone, electrical insulating property, low compression set, high strength and high elongation rate, so be widely used in automotive industry, building trade, the electronics and electrical sector.
But along with the progress of science and technology and the development of society, the concern of human consumer to commodity not only rests on using function, and the problem such as comfortable, safe, attractive in appearance of product has become the important standards of grading of human consumer.The many disadvantages that ethylene-propylene rubber(EPR) goods were not once concerned is disclosed out by human consumer one by one, on the one hand, the ethylene-propylene rubber(EPR) that ethene, propylene and Third monomer aggregate under the effect of catalyzer is when sulfuration, residual monomer and catalyzer can produce some by products makes it with pungent smell, on the other hand, the oxygen index (OI) of ethylene-propylene rubber(EPR) is only about 20%, belong to inflammableness rubber, in many application such as electric wire, material of construction, household electrical appliance, be faced with huge potential safety hazard.Therefore design a kind of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material to be necessary very much.
Summary of the invention
The present invention proposes a kind of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material and preparation method thereof, the elastomeric material non-coloring of preparation, low peculiar smell, flame retardant properties are good.
The present invention proposes a kind of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 3 ~ 5 parts, precipitated silica 10 ~ 30 parts, 30 ~ 50 parts, micronized talc powder, 40 ~ 60 parts, aluminium hydroxide, TDE 20 ~ 50 parts, environment-friendly type antimonous oxide 10 ~ 30 parts, zinc borate 10 ~ 30 parts, paraffin oil 5 ~ 15 parts, indirect process zinc oxide 3 ~ 8 parts, stearic acid 0.5 ~ 1.5 part, polyoxyethylene glycol 2.5 ~ 4.5 parts, lubricant 2.5 ~ 4.5 parts, coupling agent 1 ~ 3 part, 0.5 ~ 1 part, sulphur, environment-friendly type promotor 2 ~ 4 parts.
Preferably, in its raw material, extrude soon carbon black, precipitated silica, micronized talc powder weight ratio be 3.8 ~ 4.5:18 ~ 26:38 ~ 45.
Preferably, in its raw material, the weight ratio of aluminium hydroxide, TDE, environment-friendly type antimonous oxide, zinc borate is 45 ~ 55:32 ~ 43:16 ~ 23:18 ~ 25.
Preferably, in its raw material, the weight ratio of indirect process zinc oxide, stearic acid, sulphur, environment-friendly type promotor is 4.2 ~ 6:0.8 ~ 1.3:0.7 ~ 1:2.6 ~ 3.4.
Preferably, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4 ~ 4.3 parts, precipitated silica 20 ~ 24 parts, 40 ~ 43 parts, micronized talc powder, 48 ~ 53 parts, aluminium hydroxide, TDE 35 ~ 40 parts, environment-friendly type antimonous oxide 18 ~ 21 parts, zinc borate 20 ~ 23 parts, paraffin oil 8 ~ 12 parts, indirect process zinc oxide 4.8 ~ 5.6 parts, stearic acid 1 ~ 1.2 part, polyoxyethylene glycol 3 ~ 4.2 parts, lubricant 3.2 ~ 4.0 parts, coupling agent 1.6 ~ 2.3 parts, 0.8 ~ 0.86 part, sulphur, environment-friendly type promotor 3 ~ 3.3 parts.
Preferably, the median size of described micronized talc powder is 7-9 micron.
Preferably, described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 15-45:5-25:15-40; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 20-40:13-20:25-32; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 35:18:32.
The invention allows for the preparation method of a kind of described non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 60-70 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 170 ~ 190Kgf/cm
2, the temperature of a sulfuration is 170 ~ 180 DEG C, and the time of a sulfuration is 300 ~ 480 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 140-160 DEG C, and the time of post cure is 1-2h.
Preferably, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 65-70 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 175 ~ 185Kgf/cm
2, the temperature of a sulfuration is 172 ~ 178 DEG C, and the time of a sulfuration is 350 ~ 430 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 145-155 DEG C, and the time of post cure is 1.2-1.8h.
Preferably, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 68 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 180Kgf/cm
2, the temperature of a sulfuration is 175 DEG C, and the time of a sulfuration is 400 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 148 DEG C, and the time of post cure is 1.5h.
Preferably, in S2, synthetic rubber being detected elastomeric hardness, intensity and elongation by also comprising before mill, filtering after detecting, wherein, hardness is 70 ± 5 degree, intensity >=8MPa, and the synthetic rubber of elongation >=250% is qualified synthetic rubber; In S3, before post cure, also comprise the rubber after by a sulfuration carry out deburring; In S3, also comprise the rubber after to post cure test.
In the present invention, aluminium hydroxide and zinc borate can remove crystal water and absorb a large amount of heat thus the temperature reducing elastomeric material, TDE is decomposed into non-combustible bromize hydrogen gas and catches the HO living radical in combustion reactions, TDE and aluminium hydroxide and zinc borate and with after, there is synergy, improve the flame retardant resistance of elastomeric material; The fast extrusion carbon black of 3-5 part is used for dyeing, the precipitated silica of 10-30 part and the micronized talc powder of 30-50 part are with the use of as reinforced filling, fast extrusion carbon black, precipitated silica and micronized talc powder with the use of, while reaching reinforcement, avoid the marking producing black when elastomeric material and other component contact rub; The environment-friendly type promotor of selecting joins in elastomeric material, coordinates with indirect process zinc oxide and stearic acid, and the volatile matter produced while improving vulcanization rate is few, and peculiar smell is little.
Coordinate according to formula of the present invention the elastomeric material that preparation method of the present invention makes, its smell is little, with other metallic paint parts rub without the marking, burn fast from putting out.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
In a particular embodiment, non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, in its raw material, the weight part of ethylene-propylene rubber(EPR) is 100 parts, the weight part of fast extrusion carbon black can be 3, 3.3, 3.5, 3.8, 4, 4.2, 4.5, 4.6, 4.78, 4.8, 4.85, 4.9, 4.93, 5 parts, the weight part of precipitated silica can be 10, 12, 13, 14.5, 16, 18, 19, 21, 23, 24, 25.6, 27, 28, 29.4, 30 parts, the weight part of micronized talc powder can be 30, 32, 35, 37, 38.5, 39, 42, 45, 46, 48, 49.4, 50 parts, the weight part of aluminium hydroxide can be 40, 42, 43, 45, 46, 48, 48.5, 49, 49.3, 51, 52, 53, 54.6, 57, 58, 59.3, 60 parts, the weight part of TDE can be 20, 23, 24, 25, 26.3, 28, 29, 29.3, 31, 32, 35, 36, 37.5, 38, 39, 39.4, 43, 45, 46, 48.3, 49, 49.4, 50 parts, the weight part of environment-friendly type antimonous oxide can be 10, 12, 13, 14.5, 15, 16, 16.3, 17, 17.4, 18, 18.5, 19, 19.3, 22, 23, 24, 25.6, 27, 28, 28.6, 29, 29.3, 30 parts, the weight part of zinc borate can be 10, 12, 13, 15, 16, 18, 19.4, 21, 23, 24.5, 26, 26.3, 27, 28, 28.5, 29, 29.3, 30 parts, the weight part of paraffin oil can be 5, 5.8, 6, 6.3, 7, 7.5, 8, 8.3, 9, 9.4, 10, 10.5, 11, 13, 14.5, 15 parts, the weight part of indirect process zinc oxide can be 3, 3.5, 3.8, 4, 5, 6, 6.3, 7, 7.5, 8 parts, stearic weight part can be 0.5, 0.8, 0.9, 0.93, 1, 1.1, 1.2, 1.34, 1.4, 1.46, 1.5 parts, the weight part of polyoxyethylene glycol can be 2.5, 2.8, 2.9, 3, 3.4, 3.7, 3.8, 4, 4.2, 4.3, 4.4, 4.5 parts, the weight part of lubricant can be 2.5, 2.8, 3, 3.4, 3.7, 3.8, 4, 4.2, 4.3, 4.38, 4.5 parts, the weight part of coupling agent can be 1, 1.2, 1.6, 1.8, 1.93, 2, 2.3, 2.4, 2.6, 2.8, 2.94, 3 parts, the weight part of sulphur can be 0.5, 0.6, 0.67, 0.8, 0.83, 0.9, 1 part, the weight part of environment-friendly type promotor can be 2, 2.3, 2.4, 2.5, 2.8, 2.9, 3, 3.4, 3.5, 3.7, 4 parts.
Embodiment 1
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4 parts, precipitated silica 20 parts, 40 parts, micronized talc powder, 50 parts, aluminium hydroxide, TDE 35 parts, environment-friendly type antimonous oxide 20 parts, zinc borate 20 parts, paraffin oil 10 parts, indirect process zinc oxide 5 parts, stearic acid 1 part, polyoxyethylene glycol 3.5 parts, lubricant 3.5 parts, coupling agent 2 parts, 0.7 part, sulphur, environment-friendly type promotor 2 parts.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 70 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 170Kgf/cm
2, the temperature of a sulfuration is 180 DEG C, and the time of a sulfuration is 300 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 160 DEG C, and the time of post cure is 1h.
Embodiment 2
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 3 parts, precipitated silica 30 parts, 30 parts, micronized talc powder, 60 parts, aluminium hydroxide, TDE 20 parts, environment-friendly type antimonous oxide 30 parts, zinc borate 10 parts, paraffin oil 15 parts, indirect process zinc oxide 3 parts, stearic acid 1.5 parts, polyoxyethylene glycol 4.5 parts, lubricant 4.5 parts, coupling agent 1 part, 1 part, sulphur, environment-friendly type promotor 2 parts;
Wherein, the median size of described micronized talc powder is 7 microns; Described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; In described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 15:25:15.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 60 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 190Kgf/cm
2, the temperature of a sulfuration is 170 DEG C, and the time of a sulfuration is 480 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 140 DEG C, and the time of post cure is 2h.
Embodiment 3
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 5 parts, precipitated silica 10 parts, 50 parts, micronized talc powder, 40 parts, aluminium hydroxide, TDE 50 parts, environment-friendly type antimonous oxide 10 parts, zinc borate 30 parts, paraffin oil 5 parts, indirect process zinc oxide 8 parts, stearic acid 0.5 part, polyoxyethylene glycol 2.5 parts, lubricant 2.5 parts, coupling agent 3 parts, 0.5 part, sulphur, environment-friendly type promotor 4 parts;
Wherein, the median size of described micronized talc powder is 9 microns; Described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; In described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 15:5:40.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 65 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 185Kgf/cm
2, the temperature of a sulfuration is 172 DEG C, and the time of a sulfuration is 430 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 145 DEG C, and the time of post cure is 1.8h.
Embodiment 4
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4.8 parts, precipitated silica 23 parts, 39 parts, micronized talc powder, 49 parts, aluminium hydroxide, TDE 36 parts, environment-friendly type antimonous oxide 18.5 parts, zinc borate 26.3 parts, paraffin oil 13 parts, indirect process zinc oxide 6.3 parts, stearic acid 1.46 parts, polyoxyethylene glycol 3.8 parts, lubricant 4.3 parts, coupling agent 2.6 parts, 0.9 part, sulphur, environment-friendly type promotor 3.7 parts;
Wherein, the median size of described micronized talc powder is 8 microns; Described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; In described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 45:5:40.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, elastomeric hardness, intensity and elongation to be detected, filter after detecting, wherein, elastomeric hardness is 66 degree, and intensity is 8.4MPa, and elongation is 471%, then carry out opening the type of being smelt at 60 DEG C by mill, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 170Kgf/cm
2, the temperature of a sulfuration is 170 DEG C, and the time of a sulfuration is 300 seconds;
S3, the rubber after a sulfuration is carried out deburring after put into baking oven and carry out post cure, wherein, the temperature of post cure is 150 DEG C, and the time of post cure is 1.5h, then detects post cure rubber.
Embodiment 5
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4 parts, precipitated silica 24 parts, 43 parts, micronized talc powder, 48 parts, aluminium hydroxide, TDE 40 parts, environment-friendly type antimonous oxide 18 parts, zinc borate 23 parts, paraffin oil 12 parts, indirect process zinc oxide 4.8 parts, stearic acid 1.2 parts, polyoxyethylene glycol 3 parts, lubricant 4.0 parts, coupling agent 1.6 parts, 0.86 part, sulphur, environment-friendly type promotor 3 parts;
Wherein, described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; In described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 45:25:15.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, elastomeric hardness, intensity and elongation to be detected, filter after detecting, wherein, elastomeric hardness is 70 degree, and intensity is 9.2MPa, and elongation is 412, then carry out opening the type of being smelt at 60 DEG C by mill, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 180Kgf/cm
2, the temperature of a sulfuration is 175 DEG C, and the time of a sulfuration is 390 seconds;
S3, the rubber after a sulfuration is carried out deburring after put into baking oven and carry out post cure, wherein, the temperature of post cure is 150 DEG C, and the time of post cure is 1.5h, then detects post cure rubber.
Embodiment 6
Non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4.3 parts, precipitated silica 20 parts, 40 parts, micronized talc powder, 53 parts, aluminium hydroxide, TDE 35 parts, environment-friendly type antimonous oxide 21 parts, zinc borate 20 parts, paraffin oil 8 parts, indirect process zinc oxide 5.6 parts, stearic acid 1 part, polyoxyethylene glycol 4.2 parts, lubricant 3.2 parts, coupling agent 2.3 parts, 0.8 part, sulphur, environment-friendly type promotor 3.3 parts;
Wherein, the median size of described micronized talc powder is 8 microns; Described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; In described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 35:18:32.
The preparation method of non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber material, comprises the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, elastomeric hardness, intensity and elongation to be detected, filter after detecting, wherein, elastomeric hardness is 74 degree, and intensity is 8.6MPa, and elongation is 355%, then carry out opening the type of being smelt at 60 DEG C by mill, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 180Kgf/cm
2, the temperature of a sulfuration is 175 DEG C, and the time of a sulfuration is 480 seconds;
S3, the rubber after a sulfuration is carried out deburring after put into baking oven and carry out post cure, wherein, the temperature of post cure is 150 DEG C, and the time of post cure is 2h, then detects post cure rubber.
Extract 5 elastomeric materials of the present invention carry out fire-retardant, rub the test of painted and smell, wherein, elastomeric material all certainly puts out when burning in 30s, and known non-coloring of the present invention low peculiar smell inflaming retarding ethylene propylene rubber Flame Retardancy is good, to its friction non-coloring, and low peculiar smell.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material, it is characterized in that, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 3 ~ 5 parts, precipitated silica 10 ~ 30 parts, 30 ~ 50 parts, micronized talc powder, 40 ~ 60 parts, aluminium hydroxide, TDE 20 ~ 50 parts, environment-friendly type antimonous oxide 10 ~ 30 parts, zinc borate 10 ~ 30 parts, paraffin oil 5 ~ 15 parts, indirect process zinc oxide 3 ~ 8 parts, stearic acid 0.5 ~ 1.5 part, polyoxyethylene glycol 2.5 ~ 4.5 parts, lubricant 2.5 ~ 4.5 parts, coupling agent 1 ~ 3 part, 0.5 ~ 1 part, sulphur, environment-friendly type promotor 2 ~ 4 parts.
2. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to claim 1, is characterized in that, in its raw material, extrude soon carbon black, precipitated silica, micronized talc powder weight ratio be 3.8 ~ 4.5:18 ~ 26:38 ~ 45.
3. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to claim 1 or 2, it is characterized in that, in its raw material, the weight ratio of aluminium hydroxide, TDE, environment-friendly type antimonous oxide, zinc borate is 45 ~ 55:32 ~ 43:16 ~ 23:18 ~ 25.
4. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to any one of claim 1-3, it is characterized in that, in its raw material, the weight ratio of indirect process zinc oxide, stearic acid, sulphur, environment-friendly type promotor is 4.2 ~ 6:0.8 ~ 1.3:0.7 ~ 1:2.6 ~ 3.4.
5. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to any one of claim 1-4, it is characterized in that, its raw material comprises following component by weight: 100 parts, ethylene-propylene rubber(EPR), fast extrusion carbon black 4 ~ 4.3 parts, precipitated silica 20 ~ 24 parts, 40 ~ 43 parts, micronized talc powder, 48 ~ 53 parts, aluminium hydroxide, TDE 35 ~ 40 parts, environment-friendly type antimonous oxide 18 ~ 21 parts, zinc borate 20 ~ 23 parts, paraffin oil 8 ~ 12 parts, indirect process zinc oxide 4.8 ~ 5.6 parts, stearic acid 1 ~ 1.2 part, polyoxyethylene glycol 3 ~ 4.2 parts, lubricant 3.2 ~ 4.0 parts, coupling agent 1.6 ~ 2.3 parts, 0.8 ~ 0.86 part, sulphur, environment-friendly type promotor 3 ~ 3.3 parts.
6. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to any one of claim 1-5, is characterized in that, the median size of described micronized talc powder is 7-9 micron.
7. non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to any one of claim 1-6, it is characterized in that, described environment-friendly type promotor is the mixture of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 15-45:5-25:15-40; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 20-40:13-20:25-32; Preferably, in described environment-friendly type promotor, the weight ratio of zinc dialkyl dithiophosphate, zinc dibenzyldithiocarbamate, dibenzothiazyl disulfide is 35:18:32.
8. the preparation method of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to any one of claim 1-7, is characterized in that, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 60-70 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 170 ~ 190Kgf/cm
2, the temperature of a sulfuration is 170 ~ 180 DEG C, and the time of a sulfuration is 300 ~ 480 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 140-160 DEG C, and the time of post cure is 1-2h.
9. the preparation method of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to claim 8, is characterized in that, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 65-70 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 175 ~ 185Kgf/cm
2, the temperature of a sulfuration is 172 ~ 178 DEG C, and the time of a sulfuration is 350 ~ 430 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 145-155 DEG C, and the time of post cure is 1.2-1.8h.
Preferably, comprise the following steps:
S1, getting the raw materials ready according to above-mentioned formula and all raw materials are sent into Banbury mixer obtains synthetic rubber;
S2, synthetic rubber is carried out opening the type of being smelt by mill at 68 DEG C, then put into vulcanizing equipment and carry out a sulfuration; Wherein, the pressure of a sulfuration is 180Kgf/cm
2, the temperature of a sulfuration is 175 DEG C, and the time of a sulfuration is 400 seconds;
S3, the rubber after a sulfuration is put into baking oven carry out post cure, wherein, the temperature of post cure is 148 DEG C, and the time of post cure is 1.5h.
10. the preparation method of non-coloring low peculiar smell inflaming retarding ethylene propylene rubber material according to claim 8 or claim 9, it is characterized in that, in S2, synthetic rubber is detected elastomeric hardness, intensity and elongation by also comprising before mill, filter after detecting, wherein, hardness is 70 ± 5 degree, intensity >=8MPa, and the synthetic rubber of elongation >=250% is qualified synthetic rubber; In S3, before post cure, also comprise the rubber after by a sulfuration carry out deburring; In S3, also comprise the rubber after to post cure test.
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| CN105482369A (en) * | 2015-12-29 | 2016-04-13 | 李栋军 | Flame-retardant filling for cables |
| CN107868348A (en) * | 2017-12-03 | 2018-04-03 | 深圳市罗庚电气有限公司 | A kind of high flame resistance conduction ethylene propylene diene rubber and preparation method thereof |
| CN108276626A (en) * | 2018-02-08 | 2018-07-13 | 厦门正新橡胶工业有限公司 | Low smell tyre stock and preparation method thereof |
| CN108329605A (en) * | 2018-02-28 | 2018-07-27 | 深圳合丰橡胶制品有限公司 | A kind of fire-resistant rubber and its manufacturing method |
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Application publication date: 20150513 |