CN115716953B - Composition for rubber processing aid, application of rubber processing aid in rubber processing and rubber processing method - Google Patents
Composition for rubber processing aid, application of rubber processing aid in rubber processing and rubber processing method Download PDFInfo
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- CN115716953B CN115716953B CN202110976971.XA CN202110976971A CN115716953B CN 115716953 B CN115716953 B CN 115716953B CN 202110976971 A CN202110976971 A CN 202110976971A CN 115716953 B CN115716953 B CN 115716953B
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- 238000010057 rubber processing Methods 0.000 title claims abstract description 133
- 239000006057 Non-nutritive feed additive Substances 0.000 title claims abstract description 102
- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 17
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- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 14
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 66
- 239000005060 rubber Substances 0.000 claims description 66
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 14
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 13
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 claims description 10
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical group CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 claims description 10
- 229940073769 methyl oleate Drugs 0.000 claims description 10
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 8
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- LVGKNOAMLMIIKO-UHFFFAOYSA-N Elaidinsaeure-aethylester Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC LVGKNOAMLMIIKO-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- LVGKNOAMLMIIKO-QXMHVHEDSA-N ethyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC LVGKNOAMLMIIKO-QXMHVHEDSA-N 0.000 claims description 3
- 229940093471 ethyl oleate Drugs 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- 229940049964 oleate Drugs 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- REIUXOLGHVXAEO-UHFFFAOYSA-N pentadecan-1-ol Chemical compound CCCCCCCCCCCCCCCO REIUXOLGHVXAEO-UHFFFAOYSA-N 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 229920003049 isoprene rubber Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 25
- 238000012360 testing method Methods 0.000 description 13
- 239000006229 carbon black Substances 0.000 description 9
- 235000019241 carbon black Nutrition 0.000 description 9
- 238000004073 vulcanization Methods 0.000 description 9
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- 238000012545 processing Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 5
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000013543 active substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000012763 reinforcing filler Substances 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- BTFJIXJJCSYFAL-UHFFFAOYSA-N icosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCO BTFJIXJJCSYFAL-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical group CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
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- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241001441571 Hiodontidae Species 0.000 description 1
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- 229920006247 high-performance elastomer Polymers 0.000 description 1
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- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 150000002889 oleic acids Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of rubber processing, and discloses a composition for a rubber processing aid, the rubber processing aid, application of the composition and the rubber processing aid in rubber processing and a rubber processing method. The composition comprises oleate, sodium dodecyl sulfate and R 1 Long chain fatty alcohols represented by OH and polyethylene waxes, wherein R 1 Is a straight-chain or branched alkyl group having 14 to 18 carbon atoms. The composition for the rubber processing aid and/or the rubber processing aid are applied to the rubber processing process, so that the rubber processing effect can be effectively improved, and the production process of the rubber processing aid is simple.
Description
Technical Field
The invention relates to the field of rubber processing, in particular to a composition for a rubber processing aid, the rubber processing aid, application of the composition and the rubber processing aid in rubber processing and a rubber processing method.
Background
The use of rubber processing aids has been recognized in the last decade as an advancement in rubber compounding technology during the development of high performance elastomers, the addition of processing aids being critical to successful compounding. The addition of a small amount of processing aid to the sizing material can greatly improve the processing performance of the sizing material. If the Mooney viscosity is reduced, the fluidity of the rubber material is improved, the dispersibility of the filler is improved, and the physical and mechanical properties of the vulcanized rubber are further improved.
CN102850714a discloses a rubber processing aid which is produced by esterification reaction of unsaturated fatty acid (C5 petroleum resin, hard acid) and polyol (polyethylene glycol). The rubber processing aid has the advantages of low production energy consumption and low wastewater, waste gas and carbon emission. However, the production of the rubber processing aid requires an esterification reaction, and the degree of esterification is strictly controlled, resulting in a complicated production process.
Disclosure of Invention
The invention aims to overcome the defect of complex production process of rubber processing aids in the prior art, and provides a composition for the rubber processing aids, application of the composition for the rubber processing aids in rubber processing and a rubber processing method.
In order to achieve the above object, the first aspect of the present invention provides a composition for a rubber processing aid, characterized in that the composition comprises oleate, sodium dodecyl sulfate, R 1 Long chain fatty alcohols represented by OH and polyethylene waxes, wherein R 1 Is a straight-chain or branched alkyl group having 14 to 18 carbon atoms.
The second aspect of the present invention provides a rubber processing aid comprising a rubber carrier and the above-mentioned composition for a rubber processing aid, wherein the content of the composition for a rubber processing aid is 50 to 110 parts by weight relative to 100 parts by weight of the rubber carrier.
The third aspect of the invention provides a composition for rubber processing aid and/or application of the rubber processing aid in rubber processing.
The fourth aspect of the present invention provides a rubber processing method comprising kneading a base rubber in the presence of a rubber processing aid to obtain a rubber compound, and vulcanizing the rubber compound, characterized in that the rubber processing aid is the above rubber processing aid.
Through the technical scheme, the composition for the rubber processing aid, the application of the composition and the rubber processing aid in rubber processing and the rubber processing method have the following beneficial effects:
in the invention, the composition comprises oleate, sodium dodecyl sulfate and R 1 The composition for the rubber processing aid of the long-chain fatty alcohol and the polyethylene wax, which are expressed by OH, can strengthen the interface action of the reinforcing filler and the matrix, promote the dispersion of the reinforcing filler in the matrix, and can obviously improve the processing performance of the rubber (such as reducing the Mooney viscosity and improving the filler dispersion) while ensuring the tensile strength of the rubber when being used for rubber processing.
Further, the rubber processing aid containing the composition for the rubber processing aid is simple in production process, and rubber processing is carried out by using the rubber processing aid provided by the invention, so that the processing performance (such as reduction of Mooney viscosity and improvement of filler dispersibility) of the rubber can be obviously improved while the tensile strength of the rubber is ensured.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
The first aspect of the invention providesA composition for a seed rubber processing aid, which comprises oleic acid ester, sodium dodecyl sulfate and R 1 Long chain fatty alcohols represented by OH and polyethylene waxes, wherein R 1 Is a straight-chain or branched alkyl group having 14 to 18 carbon atoms.
In the present invention, the sodium dodecyl sulfate has the structure shown below.
In the invention, the composition comprises oleate, sodium dodecyl sulfate and R 1 The composition for the rubber processing aid of the long-chain fatty alcohol and the polyethylene wax, which are expressed by OH, can strengthen the interface action of the reinforcing filler and the matrix, promote the dispersion of the reinforcing filler in the matrix, and can obviously improve the processing performance of the rubber, such as reducing the Mooney viscosity and improving the filler dispersion, when being used for rubber processing, while ensuring the tensile strength of the rubber.
According to the present invention, the content of the oleate is 25 to 80 parts by weight, the content of the sodium lauryl sulfate is 10 to 70 parts by weight, and the content of the long-chain fatty alcohol is 5 to 35 parts by weight, relative to 100 parts by weight of the polyethylene wax.
In the present invention, the inventors have found that when oleate, sodium dodecyl sulfate, R 1 When the amount of the long-chain fatty alcohol represented by OH and the polyethylene wax satisfies the above range, when the composition for rubber processing aid is used for rubber processing, the rubber can be ensured to have excellent tensile strength, and the mooney viscosity of the rubber is reduced, the filler dispersibility is improved, and further the processability of the rubber is remarkably improved.
Further, the content of the oleate is 34 to 64 parts by weight, the content of the sodium lauryl sulfate is 23 to 60 parts by weight, and the content of the long-chain fatty alcohol is 14 to 28 parts by weight, relative to 100 parts by weight of the polyethylene wax.
In the present invention, examples of the linear or branched alkyl group having 14 to 18 carbon atoms may include, but are not limited to: n-pentadecyl and its isomeric forms, n-cetyl and its isomeric forms, n-octadecyl and its isomeric forms.
Further, R 1 Is a linear or branched alkyl group having 15 to 17 carbon atoms.
According to the invention, the oleic acid esters are selected from methyl oleate and/or ethyl oleate.
In the invention, the methyl oleate has the following structure:
in the present invention, the long-chain fatty alcohol may be palmitols and/or pentadecanols. The long-chain fatty alcohol is preferably palm alcohol from the viewpoint of better improvement of processability of the rubber.
In the present invention, the polyethylene wax may be various specifications of polyethylene wax which can be used in rubber processing, and preferably the softening point temperature of the polyethylene wax is 100 to 110 ℃.
In the present invention, the method for producing the composition for a rubber processing aid is not particularly limited, and the composition can be produced by a method conventional in the art, for example, by uniformly mixing the components.
The composition for a rubber processing aid of the present invention can be directly used for rubber processing, and in order to sufficiently exert the action and effect of the composition for a rubber processing aid, the tensile strength and processability of rubber are further improved, and preferably, the composition for a rubber processing aid is compounded with a rubber carrier to obtain a rubber processing aid.
The second aspect of the present invention provides a rubber processing aid comprising a rubber carrier and the above-mentioned composition for a rubber processing aid, wherein the content of the composition for a rubber processing aid is 50 to 110 parts by weight relative to 100 parts by weight of the rubber carrier.
Further, the content of the composition for rubber processing aid is 80 to 100 parts by weight with respect to 100 parts by weight of the rubber carrier.
According to the present invention, the rubber carrier is at least one selected from the group consisting of natural rubber, styrene-butadiene rubber, butadiene rubber and isoprene rubber.
In the present invention, the method for preparing the rubber processing aid is not particularly limited, and the preparation can be carried out by a method conventional in the art, for example, by uniformly mixing the components.
The third aspect of the present invention provides the above-mentioned composition for a rubber processing aid and/or the use of the above-mentioned rubber processing aid in rubber processing.
In the present invention, when the composition for a rubber processing aid and/or the rubber processing aid is used for rubber processing, the processability of the rubber (e.g., lowering the mooney viscosity and improving filler dispersibility) can be significantly improved while maintaining the tensile strength of the rubber.
The fourth aspect of the present invention provides a rubber processing method comprising mixing a base rubber in the presence of a rubber processing aid to obtain a rubber compound, and vulcanizing the rubber compound, wherein the rubber processing aid is the above rubber processing aid.
According to the invention, the rubber processing aid is used in an amount of 4 to 8 parts by weight relative to 100 parts by weight of the base rubber.
In the present invention, the mixing and vulcanization of the rubber composition can be achieved by using a mixing process and a vulcanization process which are conventional in the art, and specifically, the rubber processing method may include first adding a base rubber, a rubber processing aid of the present invention, carbon black and an active agent to an internal mixer to mix for 5 to 10 minutes at 80 to 110 ℃, then adding a vulcanizing agent to the above mixture, then transferring to an open mill to perform mixing for 10 to 15 minutes at 35 to 55 ℃ to obtain a rubber compound blank, and then performing press vulcanization for 140 to 170 ℃ to obtain a vulcanized rubber.
In the present invention, the base rubber may be any of various rubbers conventionally used in the art that require vulcanization processing, and may include, but is not limited to: natural rubber and/or synthetic rubber, which may include, but is not limited to: butadiene rubber and/or styrene-butadiene rubber.
The carbon black may be any of a variety of existing carbon blacks that can be used as rubber additives, including but not limited to: carbon blacks N550, N774 and N330, the content of the carbon black may be selected in a wide range; specifically, the carbon black may be contained in an amount of 10 to 70 parts by weight relative to 100 parts by weight of the base rubber.
The type and amount of the active agent is also well known to those skilled in the art, and the active agent may be zinc oxide and/or stearic acid; specifically, the content of the active agent may be 2 to 10 parts by weight with respect to 100 parts by weight of the natural rubber and the synthetic rubber.
The kind and amount of the vulcanizing agent are well known to those skilled in the art, and for example, the vulcanizing agent may be selected from one or more of insoluble sulfur, dithiomorpholine and tetramorphone; for its amount, specifically, the content of the vulcanizing agent may be 1 to 5 parts by weight relative to 100 parts by weight of the base rubber.
The present invention will be described in detail by examples.
Preparation examples 1 to 9 are provided for illustrating the rubber processing aid of the present invention and the preparation method thereof.
Preparation example 1
At room temperature (25 ℃) 12 parts by weight of methyl oleate, 15 parts by weight of sodium lauryl sulfate, 5 parts by weight of palmitol, 25 parts by weight of polyethylene wax (melting point 110 ℃) and 72 parts by weight of styrene-butadiene rubber were uniformly mixed to obtain a rubber processing aid X1.
Preparation example 2
At room temperature (25 ℃ C.), 16 parts by weight of methyl oleate, 8 parts by weight of sodium dodecyl sulfate, 10 parts by weight of palmitol, 35 parts by weight of polyethylene wax (melting point 90 ℃ C.) and 69 parts by weight of styrene-butadiene rubber were uniformly mixed to obtain a rubber processing aid X2.
Preparation example 3
14 parts by weight of methyl oleate, 12 parts by weight of sodium dodecyl sulfate, 8 parts by weight of palmitol, 30 parts by weight of polyethylene wax (melting point 100 ℃) and 70 parts by weight of styrene-butadiene rubber are uniformly mixed at room temperature (25 ℃) to obtain a rubber processing aid X3.
Preparation example 4
At room temperature (25 ℃) 14 parts by weight of ethyl oleate, 12 parts by weight of sodium dodecyl sulfate, 8 parts by weight of palmitol, 30 parts by weight of polyethylene wax (melting point 100 ℃) and 70 parts by weight of styrene-butadiene rubber were uniformly mixed to obtain a rubber processing aid X4.
Preparation example 5
A rubber processing aid was prepared in the same manner as in preparation example 3 except that methyl oleate was used in an amount of 18 parts by weight to obtain a rubber processing aid X5.
Preparation example 6
A rubber processing aid was prepared in the same manner as in preparation example 3 except that palmitol was replaced with stearyl alcohol having the same weight to obtain a rubber processing aid X6.
Preparation example 7
A rubber processing aid was prepared in the same manner as in preparation example 3 except that the melting point of the polyethylene wax was 80℃to obtain a rubber processing aid X7.
Preparation example 8
A rubber processing aid was prepared as in preparation example 3, except that: so that the composition used was 21 parts by weight of methyl oleate, 5.4 parts by weight of sodium lauryl sulfate and 3 parts by weight of palmitol. The rubber processing aid X8 is obtained.
Preparation example 9
A rubber processing aid was prepared as in preparation example 3, except that: the amount of methyl oleate was 6 parts by weight, the amount of sodium lauryl sulfate was 2.4 parts by weight, and the amount of palmitol was 12 parts by weight. The rubber processing aid X9 is obtained.
Preparation example 10
A rubber processing aid was prepared as in preparation example 3, except that: does not contain methyl oleate. The rubber processing aid X10 is obtained.
PREPARATION EXAMPLE 11
A rubber processing aid was prepared as in preparation example 3, except that: does not contain sodium dodecyl sulfate. The rubber processing aid X11 is obtained.
Preparation example 12
A rubber processing aid was prepared as in preparation example 3, except that: does not contain palmitol. The rubber processing aid X12 is obtained.
Preparation example 13
A rubber processing aid was prepared as in preparation example 3, except that: equal parts by weight of eicosyl alcohol are used instead of palmityl alcohol. The rubber processing aid X13 is obtained.
Examples 1-9 illustrate the rubber processing methods provided by the present invention.
Example 1
100 parts by weight of styrene-butadiene rubber (Qilu petrochemical industry, ESBR 1502), 50 parts by weight of carbon black N330 (Shanghai Kabot), 3 parts by weight of zinc oxide (Liuzhou Zinc Co., ltd.), 1 part by weight of stearic acid (Liuzhou Zinc Co., ltd.) and 6 parts by weight of rubber processing aid X1 are added into an internal mixer and mixed for 7 minutes at 90 ℃; then adding 1.75 parts by weight of insoluble sulfur (S-80, guangzhou Jinchang science and technology Co., ltd.) and 1 part by weight of accelerator TBBS (N-tertiary butyl-2-benzothiazole sulfenamide) (Yixing City New chemical Co., ltd.) into the mixture and transferring the mixture into an open mill for mixing at 45 ℃ for 12 minutes, and taking out the obtained mixture to prepare a rubber compound blank M1; then, the sheet vulcanization was carried out in a 50T sheet vulcanizing machine (Chengdu hydraulic engineering Co., ltd.) at 160℃for 35 minutes to obtain a vulcanized rubber S1 having a thickness of 2 mm.
Examples 2 to 3
A rubber was prepared as in example 1, except that the rubber processing aid was replaced with 8 parts by weight of X2 and 4 parts by weight of X3, respectively, to give rubber compound blanks M2-M3, and vulcanized rubbers S2-S3 each having a thickness of 2 mm were obtained after vulcanization.
Examples 4 to 9
A rubber was prepared as in example 3, except that the rubber processing aids were each replaced with 5 parts by weight of X4, X5, X6, X7, X8 and X9 to give rubber compound blanks M4 to M9, and vulcanized rubbers S4 to S9 each having a thickness of 2 mm were obtained after vulcanization.
Comparative example 1
This comparative example 1 is used to illustrate the processing of a reference rubber.
Rubber was processed in the same manner as in example 1 except that no rubber processing aid was added in the rubber processing to obtain a rubber compound green N1, and vulcanized rubbers DS1 each having a thickness of 2 mm were obtained after vulcanization.
Comparative examples 2 to 5
A rubber was prepared as in example 3, except that: the rubber processing aid X10-X13 is adopted to replace X3, so as to obtain rubber compound blanks N2-N5, and vulcanized rubber DS2-DS5 with the thickness of 2 mm is obtained after vulcanization.
Test examples 1 to 9
The rubber compound blanks M1 to M9 obtained in examples 1 to 9 were subjected to a Mooney viscosity test and a Panyle effect test; the resulting vulcanized rubbers S1 to S9 were subjected to tensile property test.
(1) Mooney viscosity evaluation
According to GB1232.1-2016, a GT-7080-S2 Mooney viscosity machine (manufactured by Taiwan high-speed rail Co., ltd.) is used for testing, and the Mooney testing time is 1+4min at 100 ℃. The results are shown in Table 1.
(2) Evaluation of carbon Black dispersibility
The strain scanning conditions are as follows using an RPA2000 rubber processing analyzer manufactured by Alpha corporation, U.S.A.: the temperature is 60 ℃, the frequency is 1Hz, and the frequency is 0.7-100%. The results are shown in Table 1.
(3) Tensile Property test
The vulcanized rubbers S1 to S6 were cut into dumbbell-shaped standard pieces according to the type 1 dumbbell cutter specified in GB/T528-92, and the vulcanized rubbers were tested for breaking strength and breaking elongation at a test temperature of 25℃and a traction speed of 500 mm/min, and the results are shown in Table 1.
Comparative test examples 1 to 5
Mooney viscosity test and Panee effect test were performed on the rubber compound billets N1 to N5 in the same manner as in test examples 1 to 8; the resulting vulcanized rubbers DS1 to DS5 were subjected to tensile property test. The results obtained are shown in Table 1.
TABLE 1
The results of table 1 show that the rubber processing aid provided by the invention can remarkably reduce the mooney viscosity, improve the processing performance of the rubber, and simultaneously improve the dispersibility of carbon black filler in rubber material, thereby further improving the tensile strength of the rubber.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (8)
1. A composition for a rubber processing aid, which is characterized by comprising oleate, sodium dodecyl sulfate and R 1 Long chain fatty alcohols represented by OH and polyethylene waxes, wherein R 1 Is a straight-chain or branched alkyl group having 14 to 18 carbon atoms; the softening point of the polyethylene wax is 80-110 ℃;
wherein the oleic acid ester is selected from methyl oleate and/or ethyl oleate;
wherein the long-chain fatty alcohol is palmitol and/or pentadecanol;
wherein the content of the oleate is 25-80 parts by weight, the content of the sodium dodecyl sulfate is 10-70 parts by weight, and the content of the long-chain fatty alcohol is 5-35 parts by weight relative to 100 parts by weight of the polyethylene wax.
2. The composition for a rubber processing aid according to claim 1, wherein the content of the oleic acid ester is 34 to 64 parts by weight, the content of the sodium lauryl sulfate is 23 to 60 parts by weight, and the content of the long-chain fatty alcohol is 14 to 28 parts by weight, relative to 100 parts by weight of the polyethylene wax.
3. A rubber processing aid comprising a rubber carrier and the composition for a rubber processing aid according to claim 1 or 2, wherein the content of the composition for a rubber processing aid is 50 to 110 parts by weight relative to 100 parts by weight of the rubber carrier.
4. A rubber processing aid according to claim 3, wherein the content of the composition for a rubber processing aid is 80 to 100 parts by weight relative to 100 parts by weight of the rubber carrier.
5. The rubber processing aid according to claim 3 or 4, wherein the rubber carrier is at least one selected from the group consisting of natural rubber, styrene-butadiene rubber, butadiene rubber and isoprene rubber.
6. Use of the composition for rubber processing aid according to claim 1 or 2 and/or the rubber processing aid according to any one of claims 3 to 5 in rubber processing.
7. A method of rubber processing comprising mixing a base rubber in the presence of a rubber processing aid to obtain a rubber compound, and vulcanizing the rubber compound, characterized in that the rubber processing aid is the rubber processing aid of any one of claims 3 to 5.
8. The method according to claim 7, wherein the rubber processing aid is used in an amount of 4 to 8 parts by weight relative to 100 parts by weight of the base rubber.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530759A (en) * | 2009-03-11 | 2009-09-16 | 南京四新科技应用研究所有限公司 | Method for dispersing higher fatty alcohol mixture |
| CN103665486A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Rubber composition containing carbon black masterbatch and preparation method thereof |
| CN103665491A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Oil-extended and carbon black-extended styrene-butadiene master batch, rubber composition and preparation method thereof |
| CN105273257A (en) * | 2015-11-17 | 2016-01-27 | 永嘉县伟诚橡胶工贸有限公司 | Exhausting auxiliary formula for rubber and preparation method thereof |
| CN105399986A (en) * | 2014-08-27 | 2016-03-16 | 中国石油化工股份有限公司 | Composition for rubber processing auxiliary agent, rubber processing auxiliary agent, application of composition and rubber processing auxiliary agent to rubber processing, and rubber processing method |
-
2021
- 2021-08-24 CN CN202110976971.XA patent/CN115716953B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530759A (en) * | 2009-03-11 | 2009-09-16 | 南京四新科技应用研究所有限公司 | Method for dispersing higher fatty alcohol mixture |
| CN103665486A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Rubber composition containing carbon black masterbatch and preparation method thereof |
| CN103665491A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Oil-extended and carbon black-extended styrene-butadiene master batch, rubber composition and preparation method thereof |
| CN105399986A (en) * | 2014-08-27 | 2016-03-16 | 中国石油化工股份有限公司 | Composition for rubber processing auxiliary agent, rubber processing auxiliary agent, application of composition and rubber processing auxiliary agent to rubber processing, and rubber processing method |
| CN105273257A (en) * | 2015-11-17 | 2016-01-27 | 永嘉县伟诚橡胶工贸有限公司 | Exhausting auxiliary formula for rubber and preparation method thereof |
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