CN114163704A - Low-heat-generation transmission adhesive tape primer and preparation method thereof - Google Patents
Low-heat-generation transmission adhesive tape primer and preparation method thereof Download PDFInfo
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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
- C08L11/00—Compositions of homopolymers or copolymers of chloroprene
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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
- 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
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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
- 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
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Abstract
The application relates to the field of rubber, and particularly discloses a low-heat-generation transmission adhesive tape base glue and a preparation method thereof. A low-heat-generation primer for a transmission rubber belt comprises chloroprene rubber, a vulcanizing agent, a composite filler, an accelerator, an anti-aging agent and aromatic oil; the composite filler comprises carbon black ENE33, carbon black ENE45 and bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black, and the weight ratio of the carbon black ENE33 to the carbon black ENE45 to the bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black is (10-20): 40-60): 10-30). According to the application, the white carbon black is modified by using bis [ gamma- (triethoxy silicon) propyl ] -sulfide, the obtained modified white carbon black, the carbon black ENE33 and the carbon black ENE45 are compounded to form a composite filler, the composite filler and various auxiliaries form a stable vulcanization system, the dynamic mechanical loss of the primer is obviously reduced, the heat generation amount of the primer is reduced, and the mechanical property of the primer is improved.
Description
Technical Field
The application relates to the field of special rubber, in particular to a low-heat-generation transmission adhesive tape primer and a preparation method thereof.
Background
The special transmission adhesive tape for the agricultural machinery is a core connecting component for power transmission of electromechanical equipment, and the quality of the transmission adhesive tape determines the fault-free service time of the electromechanical equipment. The chloroprene rubber has higher tensile strength and elongation at break, so the chloroprene rubber is the main raw material of the traditional middle-high-end transmission adhesive tape.
As the power of the agricultural machinery-specific equipment is gradually increased, the horsepower requirement of the equipment is increased, and the load is increased. The temperature of the transmission adhesive tape rises suddenly in a short time in the using process, so that the main component chloroprene rubber is easy to age by thermal oxidation, and the service life of the transmission adhesive tape is seriously shortened.
In the related technology, auxiliaries such as an antioxidant and an anti-aging agent are added into chloroprene rubber to improve the heat resistance of the transmission adhesive tape base rubber, but the heat resistance of the auxiliaries to the transmission adhesive tape base rubber is not obviously improved, and after the transmission adhesive tape runs for a period of time, due to large dynamic mechanical loss, the heat generation rate is high, the temperature rises to 120-150 ℃ in a short time, and the problems of easy aging and scorching still exist. Therefore, the problem of heat generation of the power transmission tape needs to be improved.
Disclosure of Invention
In order to solve the problem that the dynamic heat generation of the transmission adhesive tape is high in the using process, the application provides a low-heat-generation transmission adhesive tape primer and a preparation method thereof.
In a first aspect, the application provides a low-heat-generation transmission adhesive tape primer which adopts the following technical scheme: the low-heat-generation primer for the transmission adhesive tape is prepared from the following raw materials in parts by weight:
the composite filler comprises carbon black ENE33, carbon black ENE45 and bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black, and the weight ratio of the carbon black ENE33 to the carbon black ENE45 to the bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black is (10-20): 40-60): 10-30).
By adopting the technical scheme, the carbon black ENE33, the carbon black ENE45 and the bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black are compounded for use, so that the synergistic effect is achieved in the aspect of reducing the dynamic heat generation of the primer, and the reasons are as follows:
the carbon black ENE33 can endow the primer with good wear resistance and lower hysteresis loss, can obtain the reinforcing effect equivalent to that of ASTM N330 compared with the traditional ASTM N330, and can also effectively improve the hysteresis loss of the primer; carbon black ENE45 provides comparable reinforcement effects to conventional ASTM semi-reinforcing carbon blacks; meanwhile, the carbon black ENE45 can also endow the primer with extremely low heat generation and hysteresis loss, and when the carbon black ENE45 is used together with the carbon black ENE33, the dynamic heat generation quantity of the primer can be further reduced while the mechanical property of the primer is obviously improved;
the bi [ gamma- (triethoxy silicon) propyl ] -sulfide is a bifunctional group coupling agent, and is very easy to react with hydroxyl on the surface of the white carbon black, so that the surface polarity of the white carbon black is reduced, and the compatibility of the white carbon black and a rubber component in a primer is promoted; meanwhile, part of unreacted bis [ gamma- (triethoxy silicon) propyl ] -tetrasulfide enters surface pore active points of the carbon black ENE33 and the carbon black ENE45 under the physical diffusion effect, and the dispersion of the carbon black ENE33 and the carbon black ENE45 is promoted; therefore, the friction force between particles of the composite filler in the primer is obviously reduced, so that the heat generation of the primer is reduced;
meanwhile, a stable vulcanization system is constructed under the combined action of the vulcanizing agent, the anti-aging agent, the accelerator and the composite filler, the comprehensive use performance of the primer is improved, and the problems of high heat generation rate and high heat generation amount of the primer in the use process are solved, so that the mechanical property of the primer is kept at a good level.
Preferably, the weight ratio of the carbon black ENE33, the carbon black ENE45 and the bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black is 20:50: 30.
By adopting the technical scheme, the weight ratio of the carbon black ENE33, the carbon black ENE45 and the bis [ gamma- (triethoxysilyl silicon) propyl ] -sulfide modified white carbon black is adjusted, so that the wear resistance, the hysteresis loss and the dispersion effect in the primer are improved, and the heat generation of the primer is further reduced.
Preferably, the weight ratio of the bis [ gamma- (triethoxy silicon) propyl ] -sulfide to the white carbon black is (1-5) to (10-30).
The bis [ gamma- (triethoxysilyl) propyl ] -sulfide can be bis [ gamma- (triethoxysilyl) propyl ] -disulfide and/or bis [ gamma- (triethoxysilyl) propyl ] -tetrasulfide, and the weight ratio of the bis [ gamma- (triethoxysilyl) propyl ] -sulfide to the white carbon black is adjusted, so that the bis [ gamma- (triethoxysilyl) propyl ] -sulfide improves the compatibility of each component in the primer and reduces the possibility of scorching the primer at the same time.
Optionally, the vulcanizing agent is zinc oxide and/or magnesium oxide. Preferably, the vulcanizing agent is prepared by compounding zinc oxide and magnesium oxide according to the weight ratio of (10-20) to (1-4).
By adopting the technical scheme, zinc oxide and magnesium oxide are compounded for use, the possibility of scorching of bis [ gamma- (triethoxysilyl) propyl ] -sulfide is reduced by the magnesium oxide, and the vulcanization rate of the primer is adjusted by the zinc oxide, so that the primer has good heat resistance, and the vulcanization flatness is ensured, and the primer has excellent comprehensive use performance.
Optionally, the raw materials further comprise butadiene rubber, and the weight portion of the butadiene rubber is 10-20.
By adopting the technical scheme, the ageing resistance of the chloroprene rubber can be improved by adding the butadiene rubber into the chloroprene rubber, and the mechanical property of the chloroprene rubber is hardly influenced for the following reasons:
although the polarity difference between the butadiene rubber and the chloroprene rubber is large, and high interfacial tension exists on a blending interface of the butadiene rubber and the chloroprene rubber, part of free bis [ gamma- (triethoxysilyl) propyl ] -tetrasulfide in the composite filler plays a coupling role, so that the interfacial tension existing between the butadiene rubber and the chloroprene rubber is reduced, the compatibility between the butadiene rubber and the chloroprene rubber is improved, and the mechanical property of the base rubber is hardly influenced by the butadiene rubber;
the ageing resistance of the butadiene rubber is not as good as that of the chloroprene rubber, and the addition amount of the butadiene rubber is far less than that of the chloroprene rubber, so that the butadiene rubber replaces the chloroprene rubber to be aged firstly in the ageing process of the transmission adhesive tape, the chloroprene rubber is protected, and the heat resistance of the chloroprene rubber is improved.
Preferably, the anti-aging agent is prepared by compounding an anti-aging agent 445 and an anti-aging agent MB according to the weight ratio of (4-5) to (1-3).
By adopting the technical scheme, the anti-aging agent can be one or more of anti-aging agent RD, anti-aging agent 4010NA, anti-aging agent 4020, anti-aging agent ODA, anti-aging agent OD, anti-aging agent MBZ, anti-aging agent 264, anti-aging agent 445 and anti-aging agent MB.
Preferably, the accelerator is prepared by compounding an accelerator NA-22 and stearic acid SA according to the weight ratio of (0.5-2) to (1-2).
By adopting the technical scheme, the accelerant NA-22 and the stearic acid are compounded for use, so that the vulcanization reaction is carried out smoothly, the compatibility among all components of the primer is further improved, and the comprehensive use performance of the primer is improved.
In a second aspect, the application provides a preparation method of a low-heat-generation transmission adhesive tape primer, which adopts the following technical scheme:
a preparation method of a low-heat-generation transmission adhesive tape primer comprises the following steps:
s1, weighing chloroprene rubber, butadiene rubber, a vulcanizing agent, a composite filler, an accelerator, an anti-aging agent, an accelerator and aromatic oil according to the formula amount;
s2, mixing chloroprene rubber and butadiene rubber;
s3, blending the composite filler and aromatic oil to obtain a mixture A;
s4, blending a vulcanizing agent, an anti-aging agent and an accelerator to obtain a mixture B;
s5, banburying the rubber material prepared in the step S1 at the banburying temperature of 60-90 ℃ for 10-30S, adding the mixture B, carrying out heat preservation for 30-60S, adding the blend A, carrying out heat preservation for 60-300S, then carrying out rubber discharge at the rubber discharge temperature of 90-120 ℃, and carrying out open mixing on the obtained rubber material to prepare a rubber sheet;
s6, rolling the rubber sheet at the temperature of 40-80 ℃ to obtain the low-heat-generation transmission rubber belt primer.
By adopting the technical scheme, as various process parameters in rubber mixing are controlled, the rubber discharging temperature is reduced, the vulcanization reaction is rapid and runs smoothly, the heat generation of the prepared primer is obviously reduced in the use process, the heat resistance is excellent, and the comprehensive use performance is excellent.
In summary, the present application has the following beneficial effects:
1. according to the primer, carbon black ENE33, carbon black EEN45 and bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black are used as composite fillers, and the excellent mechanical properties of the primer are improved, and meanwhile, the primer can be endowed with good wear resistance, extremely low heat generation and hysteresis loss characteristics.
2. The processing performance of the composite filler is further improved through the combined action of the composite filler, the accelerator, the vulcanizing agent and the anti-aging agent, a stable and flat vulcanizing system is constructed, the heat generation rate and the heat generation amount of the primer are favorably further reduced, and the mechanical property of the primer is further improved.
3. According to the method, the rubber discharging temperature and the technological parameters in the vulcanization process are controlled, so that the base rubber has good mechanical properties and low heat generation quantity, and the comprehensive use performance of the base rubber is excellent.
Detailed Description
Unless otherwise stated, the sources of the raw materials in the preparation examples, examples and comparative examples of the present application are shown in Table 1 below.
TABLE 1 sources of raw materials
The following parts in the application refer to parts by weight, the magnitude of the parts by weight is consistent, and the specific numerical value of the parts by weight is determined according to the volume of an internal mixer used in the production process.
Preparation example of bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black
Preparation example 1
The bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black is prepared by the following steps: 100 parts of white carbon black and 50 parts of silane coupling agent Si-69 are weighed and stirred and blended at the rotating speed of 100rpm to obtain the bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black.
Preparation examples 2 to 5
The bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black is different from the white carbon black prepared in preparation example 1 in the weight ratio to the silane coupling agent Si-69, and the specific weight is shown in Table 2 below.
TABLE 2 weight of silica and silane coupling agent Si-69
| Preparation example | White carbon black/portion | Silane coupling agent Si-69/part |
| Preparation example 2 | 300 | 50 |
| Preparation example 3 | 100 | 10 |
| Preparation example 4 | 300 | 10 |
| Preparation example 5 | 400 | 10 |
Preparation of comparative example 1
The bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black is different from the white carbon black prepared in preparation example 1 in that the silane coupling agent Si-69 is replaced by silane coupling agent KH5503 and the like in mass.
Examples
Example 1
The low-heat-generation transmission adhesive tape base rubber comprises the following formula in 100 parts of rubber:
80 parts of chloroprene rubber, 20 parts of butadiene rubber, 20 parts of zinc oxide, 4 parts of magnesium oxide, 20 parts of carbon black ENE33, 50 parts of carbon black ENE45, 30 parts of bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black prepared in preparation example 1, 2 parts of accelerator NA-22, 2 parts of stearic acid, 5 parts of anti-aging agent 445, 3 parts of anti-aging agent MB and 5 parts of aromatic oil;
the preparation method comprises the following steps:
s1, weighing chloroprene rubber, butadiene rubber, zinc oxide, magnesium oxide, carbon black ENE33, carbon black ENE45, bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black, an accelerator NA-22, stearic acid, an anti-aging agent 445, an anti-aging agent MB and aromatic oil according to the formula ratio;
s2, mixing chloroprene rubber CR and butadiene rubber BR, adding the mixture into an open mill, and rolling the mixture for later use after the mixture is wrapped by a roller;
s3, blending carbon black ENE33, carbon black ENE45, bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black and aromatic oil to obtain a mixture A;
s4, mixing magnesium oxide, zinc oxide, an accelerator NA-22, stearic acid, an anti-aging agent 445 and an anti-aging agent MB to obtain a blend B;
s5, banburying the rubber material prepared in the step S1 in an internal mixer at the temperature of 60 ℃ for 30S, adding the blend B, carrying out heat preservation and banburying for 60S, adding the blend A, carrying out heat preservation and banburying for 300S, then carrying out rubber discharge at the temperature of 90 ℃, putting the obtained rubber material on an open mill, and mixing on the open mill to prepare a rubber sheet for later use;
and S6, adding the rubber sheet into a three-roll calender, and calendering at the temperature of 80 ℃ by three rolls to obtain the low-heat-generation transmission adhesive tape primer.
Examples 2 to 5
A low-heat-generation primer for a transmission tape is different from the primer in example 1 in that the source of the bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black is different: wherein, the bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black in the embodiment 2 is derived from the preparation example 2; bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black in example 3 was obtained from preparation example 3; bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black in example 4 was obtained from preparation example 4; bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black of example 5 was obtained from preparation example 5.
Examples 6 to 21
A low heat generation power transmission tape primer differs from example 1 in that the weights of the respective components in the primer are different, and the specific weights are shown in Table 3 below.
TABLE 3 weight of each component in the primer
Example 22
A low-heat-generation transmission adhesive tape base rubber is different from that of embodiment 1 in that in step S3, the rubber material prepared in step S1 is subjected to internal mixing in an internal mixer at the temperature of 90 ℃ for 10S, then a blend B is added, after the internal mixing is carried out for 30S under heat preservation, then a blend A is added, after the internal mixing is continued for 60S under heat preservation, rubber discharge is carried out, the rubber discharge temperature is 120 ℃, the obtained rubber material is placed on an open mill, and the rubber sheet is prepared for standby application through mixing on an open mill.
Comparative example
Comparative example 1
The transmission tape primer is different from the transmission tape primer in example 1 in that the modified white carbon black of bis [ gamma- (triethoxy silicon) propyl ] -sulfide is prepared from comparative example 1.
Comparative example 2
The transmission adhesive tape primer is different from the primer in the embodiment 1 in that the modified white carbon black is replaced by the white carbon black and other qualities.
Comparative example 3
A transmission tape primer differs from example 1 in that 15 parts of carbon black ENE33 and 15 parts of carbon black ENE45 are used instead of 3 parts of bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black.
Comparative example 4
The transmission tape primer is different from the transmission tape primer in example 1 in that carbon black ENE33 is replaced by bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black and the like.
Comparative example 5
The transmission tape primer is different from the transmission tape primer in example 1 in that carbon black ENE45 is replaced by bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black and the like.
Comparative example 6
A transmission tape base stock differs from example 1 in that 20 parts of carbon black N330 is used instead of 20 parts of carbon black ENE 33.
Comparative example 7
A transmission tape base stock differs from example 1 in that 50 parts of carbon black N770 are used instead of 50 parts of carbon black ENE 45.
Comparative example 8
A transmission tape primer differs from example 1 in that 20 parts of carbon black N330 is used instead of 20 parts of carbon black ENE33, 50 parts of carbon black N770 is used instead of 50 parts of carbon black ENE45, and 30 parts of white carbon black is used instead of 30 parts of bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon black.
Performance test
Fatigue temperature rise (. degree. C.): the test was carried out according to the detection method described in 7.1 of GB/T15584-1995;
permanent set (%): tested according to the detection method described in 7.5 of GB/T15584-1995;
tensile strength (MPa) and elongation at break (%): testing according to GB/T1040-92, wherein the tensile speed is 500mm/min, and the testing temperature is 20 +/-5 ℃;
tear strength (kN/m): tested according to the detection method described in GB/T528-2009.
The result of the detection
TABLE 4 test data for examples 1-22 and comparative examples 1-8
As can be seen by combining example 1 and comparative examples 1 to 2 with Table 4, the modification was performed using a monofunctional silane coupling agent in comparative example 1, the white carbon black was not modified in comparative example 2, the fatigue temperature of comparative examples 1 to 2 was increased more than that of example 1, and the elongation at break of comparative examples 1 to 2 was lower than that of example 1; and (3) proving that: although the monofunctional silane coupling agent can improve a vulcanization system of the primer to a certain extent, the improvement effect is weak and is far inferior to the improvement effect of the bis [ gamma- (triethoxysilyl) propyl ] -sulfide as a modifier.
Combining example 1 and comparative examples 3-5 with Table 4, it can be seen that no bis [ gamma- (triethoxysilyl) propyl ] -sulfide modified white carbon is present in comparative example 3, no carbon black ENE45 is present in comparative example 4, and no carbon black ENE33 is present in comparative example 5; the fatigue temperature rise of the comparative example 3 is remarkably increased, while the fatigue temperature rises of the comparative examples 4 to 5 are slightly reduced, but the tearing strength of the two is remarkably reduced; shows that: the composite filler achieves balance in two aspects of improving the mechanical property of the primer and solving the problem of heat generation of the primer in the primer.
Combining example 1 and comparative examples 6-7 with Table 4, it can be seen that when carbon black N330 was used in place of carbon black ENE33 and carbon black N770 was used in place of carbon black ENE45, primer fatigue temperature rises of 41.68 ℃ and 42.8 ℃ respectively were obtained, whereas when carbon black ENE33 was used in combination with carbon black ENE45, the primer fatigue temperature rise was only 41.13 ℃; thus, it was shown that: when the carbon black ENE33 and the carbon black ENE45 are compounded for use, the fatigue temperature rise of the primer can be further reduced, and the improvement effect on the problem of primer heat generation is better than that of other carbon black combinations.
By combining example 1 and comparative example 8 and table 4, it can be seen that, in comparative example 8, a conventional reinforcing system of carbon black N330, carbon black N770 and white carbon black is used, and it can be seen that the effect of improving the primer performance by the conventional reinforcing system is far inferior to the effect of improving the primer mechanical properties and the heat generation problem by compounding the composite filler of the present application.
It can be seen by combining examples 1 and 2-5 with table 4 that increasing the weight ratio of bis [ γ - (triethoxysilyl) propyl ] -sulfide to white carbon black can significantly improve the improvement effect of bis [ γ - (triethoxysilyl) propyl ] -sulfide modified white carbon black in the primer.
By combining the example 1 and the examples 6-10 and combining the table 4, the weight ratio of the carbon black ENE33, the carbon black ENE45 and the modified white carbon black is within a certain range, so that the mechanical property and the heat generation problem of the primer are obviously improved; the composite filler promotes the compatibility between the butadiene rubber and the chloroprene rubber to be improved, so that the mechanical property of the base rubber is improved; meanwhile, the heat resistance of the chloroprene rubber is improved by the butadiene rubber.
By combining the example 1 and the examples 11 to 21 and combining the table 4, it can be seen that the mechanical property of the primer can be further improved and the heat generation amount of the primer can be reduced by optimizing the selection and the proportion of each component in the vulcanization system, so that the fatigue temperature rise of the primer can be reduced.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The low-heat-generation primer for the transmission adhesive tape is characterized by being prepared from the following raw materials in parts by weight:
80-100 parts of chloroprene rubber
11-24 parts of vulcanizing agent
50-110 parts of composite filler
1.5-4 parts of accelerator
5-8 parts of anti-aging agent
5-10 parts of aromatic oil;
the composite filler comprises carbon black ENE33, carbon black ENE45 and bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black, and the weight ratio of the carbon black ENE33 to the carbon black ENE45 to the bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black is (10-20): 40-60): 10-30).
2. The low heat generation transmission tape primer as claimed in claim 1, wherein: the weight ratio of the carbon black ENE33 to the carbon black ENE45 to the bis [ gamma- (triethoxy silicon) propyl ] -sulfide modified white carbon black is 20:50: 30.
3. The low heat generation transmission tape primer as claimed in claim 2, wherein: the weight ratio of the bi- [ gamma- (triethoxy silicon) propyl ] -sulfide to the white carbon black is (1-5) to (10-30).
4. The low heat generation transmission tape primer as claimed in claim 1, wherein: the vulcanizing agent is prepared by compounding zinc oxide and magnesium oxide according to the weight ratio of (10-20) to (1-4).
5. The low heat generation transmission tape primer as claimed in claim 1, wherein: the raw materials also comprise butadiene rubber, and the weight portion of the butadiene rubber is 10-20.
6. The low heat generation transmission tape primer as claimed in claim 1, wherein: the anti-aging agent is prepared by compounding an anti-aging agent 445 and an anti-aging agent MB according to the weight ratio of (4-5) to (1-3).
7. The low heat generation transmission tape primer according to claims 1-6, wherein: the accelerator is prepared by compounding an accelerator NA-22 and stearic acid SA according to the weight ratio of (0.5-2) to (1-2).
8. The method for preparing a low heat generation transmission tape primer according to claim 7, wherein: the method comprises the following steps:
s1, weighing chloroprene rubber, butadiene rubber, a vulcanizing agent, a composite filler, an accelerator, an anti-aging agent, an accelerator and aromatic oil according to the formula amount;
s2, mixing chloroprene rubber and butadiene rubber;
s3, blending the composite filler and aromatic oil to obtain a mixture A;
s4, blending a vulcanizing agent, an anti-aging agent and an accelerator to obtain a mixture B;
s5, banburying the rubber material prepared in the step S1 at the banburying temperature of 60-90 ℃ for 10-30S, adding the mixture B, carrying out heat preservation for 30-60S, adding the blend A, carrying out heat preservation for 60-300S, then carrying out rubber discharge at the rubber discharge temperature of 90-120 ℃, and carrying out open mixing on the obtained rubber material to prepare a rubber sheet;
s6, rolling the rubber sheet at the temperature of 40-80 ℃ to obtain the low-heat-generation transmission rubber belt primer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685903A (en) * | 2022-05-07 | 2022-07-01 | 安徽潜隆机电科技有限公司 | Rubber for gas mask cover |
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| CN113512237A (en) * | 2021-06-04 | 2021-10-19 | 徐工集团工程机械股份有限公司 | High-strength tear-resistant rubber track |
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| CN114685903A (en) * | 2022-05-07 | 2022-07-01 | 安徽潜隆机电科技有限公司 | Rubber for gas mask cover |
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