CN104072996A - Firing resistant conveyer belt cover plastic and preparation method thereof - Google Patents
Firing resistant conveyer belt cover plastic and preparation method thereof Download PDFInfo
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- CN104072996A CN104072996A CN201410326989.5A CN201410326989A CN104072996A CN 104072996 A CN104072996 A CN 104072996A CN 201410326989 A CN201410326989 A CN 201410326989A CN 104072996 A CN104072996 A CN 104072996A
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Abstract
The invention discloses firing resistant conveyer belt cover plastic and a preparation method thereof. The firing resistant conveyer belt cover plastic comprises the following components in parts by weight: 100 parts of vulcanizing silicone rubber, 20-70 parts of reinforcing filler, 0.5-5 parts of vulcanizing agent, 8-20 parts of vulcanizing activator, 10-35 parts of plasticizer, 3-6 parts of antiager and 15-45 parts of fire retardant. The preparation method comprises the following steps: first segment mixing, primary cooling, second segment mixing and secondary cooling. The firing resistant conveyer belt cover plastic disclosed by the invention can be used for a long time under an environment of 250-400 DEG C and can be instantly used at 600 DEG C for a short time, and can be used for preventing the phenomenon that a high temperature material cannot be normally transported induced by surface cracking, corrosion or carbonization of the cover plastic due to over high temperature and greatly prolonging the service life of the conveying belt at a high temperature to achieve a good economic benefit. The preparation method disclosed by the invention has the characteristics of simple steps and easiness in operation, and the like.
Description
Technical field
The invention discloses a kind of conveyer belt coating rubber of resistance to calcination, the invention also discloses a kind of preparation method of the conveyer belt coating rubber of resistance to calcination.
Background technology
In recent years, China's economic develop rapidly impels the industry production scales such as iron and steel, metallurgy, coke, cement constantly to expand, requirement efficiency improves constantly, and production capacity grows steadily etc., simultaneously this material transportation parts---conveying belt is had higher requirement in also iron and steel, metallurgy industry being produced.
The material that iron and steel, metallurgy, coke, cement transport generally has megathermal feature, temperature reaches 200～400 DEG C, transient temperature is even up to 600 DEG C, so the heat-resisting rank of the rubber cover to heat resistance conveyor belt has high requirements, heat resistance conveyor belt rubber cover in the market adopts heat-resisting rank to reach T
3～T
4ethylene-propylene rubber(EPR), can meet the transport of general high-temperature material, but some high-temperature material surface also occurs with the phenomenon of the flourishing heart in transportation, thereby the temperature of material can reach 600 DEG C, in the case, thereby the use of conveying belt is easily chapped, affected by the phenomenons such as erosion of burning on the surface of the conveyer belt coating rubber taking second the third glue as main body, affect the mass transport of applying unit.
In order to improve the work-ing life of heat resistance conveyor belt under high temperature place, improve transport efficiency, meet the transport of higher temperature material, develop a kind of conveyer belt coating rubber of resistance to calcination and just seem particularly urgent and necessary.
Summary of the invention
One of object of the present invention is to overcome the deficiencies in the prior art, and a kind of conveyer belt coating rubber of resistance to calcination is provided.
Another object of the present invention is to provide a kind of preparation method of the conveyer belt coating rubber of resistance to calcination.
According to technical scheme provided by the invention, it comprises each component of following weight part the described conveyer belt coating rubber of resistance to calcination: 100 parts of sulphurated siliastics, reinforced filling 20～70 weight parts, vulcanizing agent 0.5～5 weight part, vulcanization leveller 8～20 weight parts, softening agent 10～35 weight parts, anti-aging agent 3～6 weight parts and fire retardant 15～45 weight parts, said components makes the conveyer belt coating rubber of resistance to calcination after one section of mixing and two-stage mixing.
Described reinforced filling is white carbon black, glass fibre or carbon black N330 and their two kinds or two or more mixtures.
Described vulcanizing agent is dicumyl peroxide DCP, 2,5-dimethyl-2, the mixture that 5-bis(t-butylperoxy) hexane or they are two kinds.
Described vulcanization leveller is zinc oxide, stearic acid or iso-cyanuric acid triallyl ester TAIC and their two kinds or two or more mixtures.
Described softening agent is paraffin oil, silicone oil or octyl group phenolic aldehyde BN-2 and their two kinds or two or more mixtures.
Described anti-aging agent is anti-aging agent RD, antioxidant MC or antioxidant MB and their two kinds or two or more mixtures.
Described fire retardant is clorafin, antimonous oxide, aluminium hydroxide and their two kinds or two or more mixtures.
A kind of preparation method of the conveyer belt coating rubber of resistance to calcination comprises the following steps:
A, the sulphurated siliastic of 100 weight parts is dropped into banburying 1～2min in Banbury mixer; Then open the top bolt of Banbury mixer, in Banbury mixer, drop into the reinforcing filler of 20～70 weight parts, the vulcanization leveller of 8～20 weight parts, softening agent, the anti-aging agent of 3～6 weight parts and the fire retardant of 15～45 weight parts of 10～35 weight parts, close floating weight and continue banburying, mixture temperature in Banbury mixer turns refining while being raised to 145～155 DEG C, 4～6min turns refining, after turning refining, carry out slice by thickness 6～8mm, obtain one section of mixing slice;
B, one section of mixing slice are cooled to room temperature, obtain one section of rubber unvulcanizate;
C, will be cooled to one section of rubber unvulcanizate of room temperature drop in Banbury mixer, again toward the vulcanizing agent that drops into 0.5～5 weight part in Banbury mixer, close floating weight and carry out banburying, when in Banbury mixer, mixture temperature is raised to 95～115 DEG C, turn refining, 2～3min turns refining, after turning refining, be that 6～8mm carries out slice by thickness, obtain two-stage mixing glue;
D, two-stage mixing glue are cooled to room temperature and obtain the conveyer belt coating rubber of resistance to calcination finished product.
The present invention considers from many-sides such as resistance to calcination performance and processing characteristicies, and the material of main part using silicon rubber as rubber cover, has realized the better resistance to calcination performance of rubber cover, and under hot environment, rubber cover is without be full of cracks, Non-carbonized, non-corrosive.Can be under 250～400 DEG C of environment life-time service and short-term using at instantaneous 600 DEG C, prevented because of excess Temperature make rubber cover check surface, be etched or carbonization causes can not normal transport high-temperature material phenomenon occur, greatly improve the work-ing life under conveying belt high temperature, realized good economic benefit.And preparation method of the present invention has features such as step is simple, easy handling.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
Prepare the conveyer belt coating rubber of resistance to calcination preparation raw material, specifically comprise: silicon rubber 100 weight parts, white carbon black 20 weight parts, dicumyl peroxide DCP is 0.5 weight part, zinc oxide 6 weight parts, stearic acid 1 weight part, iso-cyanuric acid triallyl ester TAIC is 1 weight part, octyl group phenolic aldehyde BN-2 is 2 weight parts, paraffin oil 8 weight parts, anti-aging agent RD 2 weight parts, antioxidant MC is 1 weight part, aluminium hydroxide 10 weight parts, clorafin 5 weight parts.
The preparation method of the conveyer belt coating rubber of resistance to calcination comprises following process:
A, one section are mixing: silicon rubber 100 weight parts, drop in Banbury mixer banburying 1.5min, then open floating weight, toward the white carbon black that drops into 20 weight parts in Banbury mixer, the zinc oxide of 6 weight parts, the stearic acid of 1 weight part, the iso-cyanuric acid triallyl ester TAIC of 1 weight part, the octyl group phenolic aldehyde BN-2 of 2 weight parts, the paraffin oil of 8 weight parts, the anti-aging agent RD of 2 weight parts, the antioxidant MC of 1 weight part, the clorafin of the aluminium hydroxide of 10 weight parts and 5 weight parts, close floating weight and continue banburying 5min, when in Banbury mixer, mixture temperature is raised to 145～155 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain one section of mixing slice,
B, once cooling: obtain one section of mixing slice normal temperature blower fan and be cooled to room temperature, obtain one section of rubber unvulcanizate;
C, two-stage mixing: drop in Banbury mixer being cooled to one section of rubber unvulcanizate of room temperature and the dicumyl peroxide DCP of 0.5 weight part, close floating weight banburying 3.5min, in the time of banburying built-in temperature to 95～115 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain two-stage mixing glue;
D, secondary are cooling: two-stage mixing glue is cooled to room temperature and obtains the conveyer belt coating rubber of resistance to calcination finished product.
The conveyer belt coating rubber of the resistance to calcination finished product that embodiment 1 obtains carries out resistance to ignition test, experimental technique is: cube iron block that is 1Kg by quality is put into the temperature required environment of experiment, after iron block is warming up to target temperature and stablizes, lain in by the prepared test sample of formula, keep 30s, observe surface condition, test-results is in table 1.
Table 1
Embodiment 2
Prepare the conveyer belt coating rubber of resistance to calcination preparation raw material, specifically comprise: silicon rubber 100 weight parts, white carbon black 25 weight parts, glass fibre 15 weight parts, carbon black N330 is 30 weight parts, dicumyl peroxide DCP is 2.5 weight parts, 2, 5-dimethyl-2, 5-bis(t-butylperoxy) hexane is 2.5 weight parts, zinc oxide 15 weight parts, stearic acid 3 weight parts, iso-cyanuric acid triallyl ester TAIC is 2 weight parts, silicone oil 5 weight parts, octyl group phenolic aldehyde BN-2 is 5 weight parts, paraffin oil 25 weight parts, anti-aging agent RD is 2 weight parts, antioxidant MC is 2 weight parts, antioxidant MB is 2 weight parts, aluminium hydroxide 30 weight parts, clorafin 10 weight parts, antimonous oxide 5 weight parts.
The preparation method of the conveyer belt coating rubber of resistance to calcination comprises following process:
A, one section are mixing: silicon rubber 100 weight parts, drop in Banbury mixer banburying 1.5min, then open floating weight, toward the white carbon black that drops into 25 weight parts in Banbury mixer, the staple glass fibre of 15 weight parts, the N330 of 30 weight parts, the zinc oxide of 15 weight parts, the stearic acid of 3 weight parts, the iso-cyanuric acid triallyl ester TAIC of 2 weight parts, the octyl group phenolic aldehyde BN-2 of 5 weight parts, the paraffin oil of 25 weight parts, the silicone oil of 5 weight parts, the anti-aging agent RD of 2 weight parts, the antioxidant MC of 2 weight parts, the antioxidant MB of 2 weight parts, the aluminium hydroxide of 30 weight parts, the antimonous oxide of the clorafin of 10 weight parts and 5 weight parts, close floating weight and continue banburying 5min, in the time of banburying built-in temperature to 145～155 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain one section of mixing slice,
B, once cooling: obtain one section of mixing slice normal temperature blower fan and be cooled to room temperature, obtain one section of rubber unvulcanizate;
C, two-stage mixing: will be cooled to 2 of one section of rubber unvulcanizate of room temperature and the dicumyl peroxide DCP of 2.5 weight parts and 2.5 weight parts, 5-dimethyl-2,5-bis(t-butylperoxy) hexane drops in Banbury mixer, close floating weight banburying 3.5min, in the time of banburying built-in temperature to 95～115 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain two-stage mixing glue;
D, secondary are cooling: two-stage mixing glue is cooled to room temperature and obtains the conveyer belt coating rubber of resistance to calcination finished product.
The conveyer belt coating rubber of the resistance to calcination finished product that embodiment 2 obtains carries out resistance to ignition test, experimental technique is: cube iron block that is 1Kg by quality is put into the temperature required environment of experiment, after iron block is warming up to target temperature and stablizes, lain in by the prepared test sample of formula, keep 30s, observe surface condition, test-results is in table 2.
Table 2
Embodiment 3
Prepare the conveyer belt coating rubber of resistance to calcination preparation raw material, specifically comprise: silicon rubber 100 weight parts, white carbon black 15 weight parts, glass fibre 20 weight parts, carbon black N330 is 10 weight parts, dicumyl peroxide DCP is 2 weight parts, 2, 5-dimethyl-2, 5-bis(t-butylperoxy) hexane is 1.5 weight parts, zinc oxide 10 weight parts, iso-cyanuric acid triallyl ester TAIC is 2 weight parts, octyl group phenolic aldehyde BN-2 is 3 weight parts, paraffin oil 15 weight parts, anti-aging agent RD is 2 weight parts, antioxidant MB is 2 weight parts, aluminium hydroxide 10 weight parts, clorafin 7 weight parts, antimonous oxide 7 weight parts.
The preparation method of the conveyer belt coating rubber of resistance to calcination comprises following process:
A, one section are mixing: silicon rubber 100 weight parts, drop in Banbury mixer banburying 1.5min, then open floating weight, toward the white carbon black that drops into 15 weight parts in Banbury mixer, the glass fibre of 20 weight parts, the carbon black N330 of 10 weight parts, the zinc oxide of 10 weight parts, the iso-cyanuric acid triallyl ester TAIC of 2 weight parts, the octyl group phenolic aldehyde BN-2 of 3 weight parts, the paraffin oil of 15 weight parts, the anti-aging agent RD of 2 weight parts, the antioxidant MB of 2 weight parts, the aluminium hydroxide of 10 weight parts, the antimonous oxide of the clorafin of 7 weight parts and 7 weight parts, close floating weight and continue banburying 5min, in the time of banburying built-in temperature to 145～155 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain one section of mixing slice,
B, once cooling: obtain one section of mixing slice normal temperature blower fan and be cooled to room temperature, obtain one section of rubber unvulcanizate;
C, two-stage mixing: will be cooled to 2 of one section of rubber unvulcanizate of room temperature and the dicumyl peroxide DCP of 2 weight parts and 1.5 weight parts, 5-dimethyl-2,5-bis(t-butylperoxy) hexane drops in Banbury mixer, close floating weight banburying 3.5min, in the time of banburying built-in temperature to 95～115 DEG C, turn refining, after turning refining, carry out slice by thickness 6～8mm, obtain two-stage mixing glue;
D, secondary are cooling: two-stage mixing glue is cooled to room temperature and obtains the conveyer belt coating rubber of resistance to calcination finished product.
The conveyer belt coating rubber of the resistance to calcination finished product that embodiment 3 obtains carries out resistance to ignition test, experimental technique is: cube iron block that is 1Kg by quality is put into the temperature required environment of experiment, after iron block is warming up to target temperature and stablizes, lain in by the prepared test sample of formula, keep 30s, observe surface condition, test-results is in table 3.
Table 3
Comparative example
The common conveyer belt coating rubber of resistance to calcination making of ethylene-propylene rubber(EPR).
The preparation raw material of preparing the conveyer belt coating rubber of resistance to calcination, specifically comprises: ethylene-propylene rubber(EPR) 100 weight parts, carbon black N33035 weight part, carbon black N55025 weight part, dicumyl peroxide DCP4 weight part, TAIC2 weight part, zinc oxide 10 weight parts, magnesium oxide 5 weight parts, stearic acid 1 weight part, paraffin oil 15 weight parts, antioxidant 4010NA 1.2 weight parts, antioxidant MB 1 weight part, anti-aging agent RD 1.5 weight parts.The preparation method of the common conveyer belt coating rubber of resistance to calcination specifically comprises following process:
(1) one section is mixing: ethylene-propylene rubber(EPR) 100 weight parts, drop in Banbury mixer banburying 1.5min, then open floating weight, toward the carbon black N330 that drops into 35 weight parts in Banbury mixer, the carbon black N550 of 25 weight parts, the zinc oxide of 10 weight parts, the magnesium oxide of 5 weight parts, the iso-cyanuric acid triallyl ester TAIC of 2 weight parts, the stearic acid of 1 weight part, the paraffin oil of 15 weight parts, the antioxidant 4010NA of 1.2 weight parts, the antioxidant MB of 1 weight part, the anti-aging agent RD of 1.5 weight parts, close floating weight and continue banburying 5min, in the time of banburying built-in temperature to 145～155 DEG C, turn refining, after turning refining, carry out slice by thickness 8～12mm, normal temperature blower fan is cooling, obtain one section of rubber unvulcanizate,
(2) two-stage mixing: drop in Banbury mixer being cooled to one section of rubber unvulcanizate of room temperature and the dicumyl peroxide DCP of 4 weight parts, close floating weight banburying 3.5min, in the time of banburying built-in temperature to 95～115 DEG C, turn refining, after turning refining, carry out slice by thickness 8～12mm, normal temperature blower fan is cooling, obtain two-stage mixing glue, be the common conveyer belt coating rubber of resistance to calcination.
The common conveyer belt coating rubber of resistance to calcination that comparative example obtains carries out resistance to ignition test, experimental technique: cube iron block that is 1Kg by quality is put into the temperature required environment of experiment, after iron block is warming up to target temperature and stablizes, lain in by the prepared test sample of formula, keep 30s, observe surface condition, the performance perameter of the conveyer belt coating rubber of resistance to calcination that comparative example prepares is in table 4.
Table 4
Claims (8)
1. the conveyer belt coating rubber of resistance to calcination, it is characterized in that it comprises each component of following weight part: 100 parts of sulphurated siliastics, reinforced filling 20 ~ 70 weight parts, vulcanizing agent 0.5 ~ 5 weight part, vulcanization leveller 8 ~ 20 weight parts, softening agent 10 ~ 35 weight parts, anti-aging agent 3 ~ 6 weight parts and fire retardant 15 ~ 45 weight parts, said components makes the conveyer belt coating rubber of resistance to calcination after one section of mixing and two-stage mixing.
2. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described reinforced filling is white carbon black, glass fibre or carbon black N330 and their two kinds or two or more mixtures.
3. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described vulcanizing agent is dicumyl peroxide DCP, 2,5-dimethyl-2, the mixture that 5-bis(t-butylperoxy) hexane or they are two kinds.
4. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described vulcanization leveller is zinc oxide, stearic acid or iso-cyanuric acid triallyl ester TAIC and their two kinds or two or more mixtures.
5. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described softening agent is paraffin oil, silicone oil or octyl group phenolic aldehyde BN-2 and their two kinds or two or more mixtures.
6. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described anti-aging agent is anti-aging agent RD, antioxidant MC or antioxidant MB and their two kinds or two or more mixtures.
7. the conveyer belt coating rubber of resistance to calcination as claimed in claim 1, is characterized in that: described fire retardant is clorafin, antimonous oxide, aluminium hydroxide and their two kinds or two or more mixtures.
8. a preparation method for the conveyer belt coating rubber of resistance to calcination, is characterized in that the method comprises the following steps:
A, the sulphurated siliastic of 100 weight parts is dropped into banburying 1 ~ 2min in Banbury mixer; Then open the top bolt of Banbury mixer, in Banbury mixer, drop into the reinforcing filler of 20 ~ 70 weight parts, the vulcanization leveller of 8 ~ 20 weight parts, softening agent, the anti-aging agent of 3 ~ 6 weight parts and the fire retardant of 15 ~ 45 weight parts of 10 ~ 35 weight parts, close floating weight and continue banburying, mixture temperature in Banbury mixer turns refining while being raised to 145 ~ 155 DEG C, 4 ~ 6min turns refining, after turning refining, carry out slice by thickness 6 ~ 8mm, obtain one section of mixing slice;
B, one section of mixing slice are cooled to room temperature, obtain one section of rubber unvulcanizate;
C, will be cooled to one section of rubber unvulcanizate of room temperature drop in Banbury mixer, again toward the vulcanizing agent that drops into 0.5 ~ 5 weight part in Banbury mixer, close floating weight and carry out banburying, when in Banbury mixer, mixture temperature is raised to 95 ~ 115 DEG C, turn refining, 2 ~ 3min turns refining, after turning refining, be that 6 ~ 8mm carries out slice by thickness, obtain two-stage mixing glue;
D, two-stage mixing glue are cooled to room temperature and obtain the conveyer belt coating rubber of resistance to calcination finished product.
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| CN104788760A (en) * | 2015-04-21 | 2015-07-22 | 无锡宝通带业股份有限公司 | Cover rubber simultaneously using chemigum and chlorinated polyethylene for oil-proof flame-retardant conveyer belt |
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| CN108795302A (en) * | 2018-06-28 | 2018-11-13 | 丹阳市沃德立电工材料有限公司 | A kind of silicon rubber self-adhesive tape that novel fire-resistant is fire-retardant |
| CN109722031A (en) * | 2017-10-31 | 2019-05-07 | 丹阳博亚新材料技术服务有限公司 | A kind of insulating materials of corrosion-resistant and high-temperature resistant |
| CN110591183A (en) * | 2019-09-03 | 2019-12-20 | 保定三源橡胶有限公司 | Sizing material for high-heat-resistance, burning-resistance and ablation-resistance conveyer belt |
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| CN110591183A (en) * | 2019-09-03 | 2019-12-20 | 保定三源橡胶有限公司 | Sizing material for high-heat-resistance, burning-resistance and ablation-resistance conveyer belt |
| CN110591183B (en) * | 2019-09-03 | 2022-04-15 | 保定三源橡胶有限公司 | Sizing material for high-heat-resistance, burning-resistance and ablation-resistance conveyer belt |
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Application publication date: 20141001 |