CN102558582A - Method for preparing whole core conveyor belt covered with magnesium hydroxide flame retardants - Google Patents
Method for preparing whole core conveyor belt covered with magnesium hydroxide flame retardants Download PDFInfo
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- CN102558582A CN102558582A CN2011104538861A CN201110453886A CN102558582A CN 102558582 A CN102558582 A CN 102558582A CN 2011104538861 A CN2011104538861 A CN 2011104538861A CN 201110453886 A CN201110453886 A CN 201110453886A CN 102558582 A CN102558582 A CN 102558582A
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- magnesium hydroxide
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- conveying belt
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Abstract
The invention relates to a method for preparing a conveyor belt, in particular to a method for preparing a whole core conveyor belt covered with magnesium hydroxide flame retardants, belonging to the field of conveyor belt preparation. The conveyor belt covered with magnesium hydroxide flame retardants belongs to the halogen-free flame retardant products and conforms to the environmental protection requirement; when the conveyor belt is heated, magnesium hydroxide in the conveyor belt can absorb plenty of heat and then is decomposed into MgO and H2O; carbon layers generated after combustion can isolate air, thus achieving a certain flame retardant effect; carbon forming layers inside are distributed in a hole-like manner and the inside holes adsorb plenty of MgO microparticles, thus increasing the specific surface area; the nanoparticle structures of the microparticles and the water vapor generated after magnesium hydroxide is heated can absorb smoke generated during combustion in a large quantity, thus achieving obvious smoke suppression effect; and the components have good dispersibility and compatibility in rubber material, thus improving the strength of the conveyor belt.
Description
Technical field
The present invention relates to a kind of preparation method of conveying belt, specifically relate to be covered with the preparation method of the integral core conveying belt of flame retardant of magnesium hydroxide, it belongs to the preparation field of conveying belt.
Background technology
Coal is China's important energy product and strategic resource, and in recent years, a critical role has been mentioned in safe coal production.The mining flame-retardant conveying belt uses halogen flame mostly at present; In case burn; With discharging a large amount of hydrogen halide, aromatic series smog; All can cause great harm and disaster to producers and fire rescue personnel, the research and development of therefore low cigarette, Halogen conveying belt and producing for knowledgeable people's common theory in the industry both at home and abroad.But generally speaking, traditional halogen-free flame retardants belongs to inorganic powder mostly, has the shortcoming and defect that consistency is relatively poor, intensity is not high.
Summary of the invention
Defective in view of the prior art existence; The objective of the invention is to provide the preparation method of the integral core conveying belt that is covered with flame retardant of magnesium hydroxide; Prepared conveying belt not only reaches the requirement of the halogen-free flameproof of knowing clearly; And smoke suppressing effect is good, and dispersed and consistency is good in sizing material, has improved the intensity of conveying belt.
In order to achieve the above object; The present invention is that the technical scheme of wanting to be adopted is the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide; Its preparation process is following: with the sizing material of rubber cover and transition glue mix with flame retardant of magnesium hydroxide at a certain temperature, screw rod machine extruding pelletization; In temperature is 165-180 ℃ of dynamic vulcanization 5-8 minute, and floods the pressing of plastifying integral fabric core material high temperature and processes integral core conveying belt.
Said sizing material with rubber cover and transition glue is made up of following weight proportion: Vilaterm 20-40 part, butyl rubber 20-50 part, terpolymer EP rubber 20-40 part; Flame retardant of magnesium hydroxide 30-70 part of the present invention, zinc oxide 3-6 part, Triple Pressed Stearic Acid 2-4 part; Carbon black 10-25 part, promotor 1-3 part, stablizer 2-4 part; Anti-aging agent 1-5 part, sulphur 1-4 part.
The preparation method of described flame retardant of magnesium hydroxide is divided into two kinds:
First kind: surface-modifying agent and Marinco H are added in the reactor drum, and temperature is controlled at 60-110 ℃, mixes, and adds above-mentioned various raw material by proportioning, handles 30-120min through impeller, prepares flame retardant of magnesium hydroxide;
Second kind: with surface-modifying agent after appropriate solvent dilution; In the low speed kneader, stir 10min under the room temperature condition, be warming up to 70-110 ℃ with magnesium hydrate powder; Add above-mentioned various raw material by proportioning; Under the high-speed stirring condition Marinco H is carried out modification and handle, the time is 45-70min, prepares flame retardant of magnesium hydroxide.
Said flame retardant of magnesium hydroxide is a magnesium hydroxide composite fire retardant, mainly comprises Marinco H, surface-modifying agent, softening agent, fire retarding synergist; The weight proportion of each component is:
Marinco H 75-95%
Surface-modifying agent 0.5-10%
Softening agent 0-10%
Fire retarding synergist 0-50%.
Its median size of described Marinco H is at the 1-20 mu m range.
Described surface-modifying agent is one or several in silane coupling agent, titanate coupling agent, Triple Pressed Stearic Acid, stearate, sodium oleate, X 2073, aluminic acid ester, the rare earth class properties-correcting agent.
Described softening agent is one or several in 1-isobutyl-3,5-dimethylhexylphosphoric acid, triaryl phosphate, polyoxyethylene ether phosphate, paraffin, DOP, the diethyl phthalate etc.
Described fire retarding synergist is one or several in trichloropropyl phosphate, zinc borate, Antimony Trioxide: 99.5Min, microcapsule encapsulated red phosphorus, trimeric cyanamide, the ammonium polyphosphate.
The invention has the advantages that: it is the travelling belt that is covered with flame retardant of magnesium hydroxide, belongs to the halogen-free flameproof product, compliance with environmental protection requirements, and wherein Marinco H can absorb great amount of heat and is decomposed into MgO and H when being heated
2O; But thereby the charcoal layer secluding air that burning back generates reaches certain flame retardant effect, and inner to become the charcoal layer be poroid distribution, and inner hole is adsorbing a large amount of MgO particulates; Increased specific surface area; The water vapour that the nanoparticle structure of its particulate and Marinco H are heated and generate can adsorb the smog that burning generates in a large number, thereby reach significant smoke suppressing effect.And each component has good dispersiveness and consistency in sizing material, thereby has improved the intensity of conveying belt.
Specific embodiments
Be covered with the preparation method of the integral core conveying belt of flame retardant of magnesium hydroxide in order further to understand this; Below will combine specific embodiments further to illustrate content of the present invention; The present invention includes and be not limited to following embodiments; The relevant programme of other any combination of under principle of the present invention, being carried out, change etc. is included in protection scope of the present invention.
Implement 1
Get the 2.5KG Triple Pressed Stearic Acid; With the 100KG median size is that the magnesium hydrate powder of the ore method preparation of 5 μ m joins in the impeller and mixes, and adds paraffin 1.5KG, zinc borate 20KG; Low whipping speed is 800 r/min; Temperature is modification 30min under 95 ℃ of conditions, and discharging is subsequent use, makes flame retardant of magnesium hydroxide of the present invention.
The weight proportion of the sizing material of rubber cover and transition glue: 30 parts of Vilaterm, 40 parts of butyl rubbers, 30 parts of terpolymer EP rubbers; 40 parts of flame retardant of magnesium hydroxide of the present invention, 4 parts in zinc oxide, 3 parts of Triple Pressed Stearic Acid; 15 parts of carbon blacks, 2 parts of altaxs, 2 parts of calcium-zinc composite stabilizing agents; 3 parts of anti-aging agent RDs, 2 parts in sulphur.
With the sizing material of rubber cover and transition glue mix with flame retardant of magnesium hydroxide at a certain temperature, screw rod machine extruding pelletization; In temperature is 165-180 ℃ of dynamic vulcanization 5-8 minute, and floods the pressing of plastifying integral fabric core material high temperature and processes integral core conveying belt.
Implement 2
Getting 2.5KG aluminic acid ester, is that the magnesium hydrate powder of the ore method preparation of 5 μ m joins in the impeller and mixes with the 100KG median size, adds DOP 1KG; Paraffin 1KG; Zinc borate 20KG, low whipping speed are 800 r/min, and temperature is modification 30min under 95 ℃ of conditions; Discharging is subsequent use, makes flame retardant of magnesium hydroxide of the present invention.
The weight proportion of the sizing material of rubber cover and transition glue: 30 parts of Vilaterm, 40 parts of butyl rubbers, 30 parts of terpolymer EP rubbers; 50 parts of flame retardant of magnesium hydroxide of the present invention, 4 parts in zinc oxide, 3 parts of Triple Pressed Stearic Acid; 15 parts of carbon blacks, 2 parts of altaxs, 2 parts of calcium-zinc composite stabilizing agents; 3 parts of anti-aging agent RDs, 2 parts in sulphur.
With the sizing material of rubber cover and transition glue mix with flame retardant of magnesium hydroxide at a certain temperature, screw rod machine extruding pelletization; In temperature is 165-180 ℃ of dynamic vulcanization 5-8 minute, and floods the pressing of plastifying integral fabric core material high temperature and processes integral core conveying belt.
Implement 3
Getting the 2.5KG Triple Pressed Stearic Acid, is that the magnesium hydrate powder of the ore method preparation of 5 μ m joins in the impeller and mixes with the 100KG median size, adds diethyl phthalate 1KG; Paraffin 1KG; Ammonium polyphosphate 10KG, low whipping speed are 800 r/min, and temperature is modification 30min under 95 ℃ of conditions; Discharging is subsequent use, makes flame retardant of magnesium hydroxide of the present invention.
The weight proportion of the sizing material of rubber cover and transition glue: 30 parts of Vilaterm, 40 parts of butyl rubbers, 30 parts of terpolymer EP rubbers; 60 parts of flame retardant of magnesium hydroxide of the present invention, 4 parts in zinc oxide, 3 parts of Triple Pressed Stearic Acid; 15 parts of carbon blacks, 2 parts of altaxs, 2 parts of calcium-zinc composite stabilizing agents; 3 parts of anti-aging agent RDs, 2 parts in sulphur.
With the sizing material of rubber cover and transition glue mix with flame retardant of magnesium hydroxide at a certain temperature, screw rod machine extruding pelletization; In temperature is 165-180 ℃ of dynamic vulcanization 5-8 minute, and floods the pressing of plastifying integral fabric core material high temperature and processes integral core conveying belt.
Smoke density grade, tensile strength and the fracture rate elongation of the integral core conveying belt that embodiment 1,2 and 3 is made are checked, obtain table 1.
Table 1 embodiment detected result
Claims (8)
1. be covered with the preparation method of the integral core conveying belt of flame retardant of magnesium hydroxide; It is characterized in that: its preparation process is following: with the sizing material of rubber cover and transition glue mix with flame retardant of magnesium hydroxide at a certain temperature, screw rod machine extruding pelletization; In temperature is 165-180 ℃ of dynamic vulcanization 5-8 minute, and floods the pressing of plastifying integral fabric core material high temperature and processes integral core conveying belt.
2. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 1 is characterized in that: said sizing material with rubber cover and transition glue is made up of following weight proportion: Vilaterm 20-40 part, butyl rubber 20-50 part; Terpolymer EP rubber 20-40 part, flame retardant of magnesium hydroxide 30-70 part of the present invention, zinc oxide 3-6 part; Triple Pressed Stearic Acid 2-4 part, carbon black 10-25 part, promotor 1-3 part; Stablizer 2-4 part, anti-aging agent 1-5 part, sulphur 1-4 part.
3. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 1 is characterized in that: the preparation method of described flame retardant of magnesium hydroxide is divided into two kinds:
First kind: surface-modifying agent and Marinco H are added in the reactor drum, and temperature is controlled at 60-110 ℃, mixes, and adds above-mentioned various raw material by proportioning, handles 30-120min through impeller, prepares flame retardant of magnesium hydroxide;
Second kind: with surface-modifying agent after appropriate solvent dilution; In the low speed kneader, stir 10min under the room temperature condition, be warming up to 70-110 ℃ with magnesium hydrate powder; Add above-mentioned various raw material by proportioning; Under the high-speed stirring condition Marinco H is carried out modification and handle, the time is 45-70min, prepares flame retardant of magnesium hydroxide.
4. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 3; It is characterized in that: said flame retardant of magnesium hydroxide is a magnesium hydroxide composite fire retardant, mainly comprises Marinco H, surface-modifying agent, softening agent, fire retarding synergist; The weight proportion of each component is:
Marinco H 75-95%
Surface-modifying agent 0.5-10%
Softening agent 0-10%
Fire retarding synergist 0-50%.
5. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 4 is characterized in that: its median size of described Marinco H is at the 1-20 mu m range.
6. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 4 is characterized in that: described surface-modifying agent is one or several in silane coupling agent, titanate coupling agent, Triple Pressed Stearic Acid, stearate, sodium oleate, X 2073, aluminic acid ester, the rare earth class properties-correcting agent.
7. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 4 is characterized in that: described softening agent is one or several in 1-isobutyl-3,5-dimethylhexylphosphoric acid, triaryl phosphate, polyoxyethylene ether phosphate, paraffin, DOP, the diethyl phthalate etc.
8. the preparation method who is covered with the integral core conveying belt of flame retardant of magnesium hydroxide according to claim 4 is characterized in that: described fire retarding synergist is one or several in trichloropropyl phosphate, zinc borate, Antimony Trioxide: 99.5Min, microcapsule encapsulated red phosphorus, trimeric cyanamide, the ammonium polyphosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104538861A CN102558582A (en) | 2011-12-30 | 2011-12-30 | Method for preparing whole core conveyor belt covered with magnesium hydroxide flame retardants |
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| CN2011104538861A CN102558582A (en) | 2011-12-30 | 2011-12-30 | Method for preparing whole core conveyor belt covered with magnesium hydroxide flame retardants |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730366A (en) * | 2012-07-12 | 2012-10-17 | 重庆中南橡胶有限公司 | Anti-burning conveyor belt |
| CN103044713A (en) * | 2012-12-28 | 2013-04-17 | 大连亚泰科技新材料股份有限公司 | Preparation method for magnesium halogen-free flame retardant and application of magnesium halogen-free flame retardant to flame-retardant high-temperature-resistant tape |
| CN103361968A (en) * | 2013-07-05 | 2013-10-23 | 吴江龙纺纺织有限公司 | Preparation method of flame-retardant purified cotton fabric |
| CN106608981A (en) * | 2016-12-06 | 2017-05-03 | 宁波卡利特新材料有限公司 | Preparation method of flame retardant pyrophyllite rubber reinforcing agent |
| CN107513200A (en) * | 2017-09-07 | 2017-12-26 | 浙江大学宁波理工学院 | Polyethylene/metal hydroxides/nano carbon black fire proofing and preparation method thereof |
| WO2020011006A1 (en) * | 2018-07-13 | 2020-01-16 | 杭州星庐科技有限公司 | Ageing-resistant rubber composition and processing method therefor and use thereof |
| CN116574341A (en) * | 2023-07-12 | 2023-08-11 | 河北信泰新材料有限公司 | Graphite composite polystyrene particle and preparation method thereof |
| CN117247620A (en) * | 2023-10-09 | 2023-12-19 | 穿越电缆集团有限公司 | Crosslinked polyethylene flame-retardant cable and preparation method thereof |
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| CN1439671A (en) * | 2002-08-01 | 2003-09-03 | 阜新橡胶有限责任公司 | Smokeless flame resistant conveying belt without halide |
| CN101210079A (en) * | 2006-12-31 | 2008-07-02 | 大连亚泰科技新材料有限公司 | Mg(OH)2 inorganic anti-flaming material and its preparing method and application |
| CN101973445A (en) * | 2010-07-29 | 2011-02-16 | 安徽中意胶带有限责任公司 | Whole-core antiflaming conveyer belt with transition layer and production method thereof |
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| CN1439671A (en) * | 2002-08-01 | 2003-09-03 | 阜新橡胶有限责任公司 | Smokeless flame resistant conveying belt without halide |
| CN101210079A (en) * | 2006-12-31 | 2008-07-02 | 大连亚泰科技新材料有限公司 | Mg(OH)2 inorganic anti-flaming material and its preparing method and application |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730366A (en) * | 2012-07-12 | 2012-10-17 | 重庆中南橡胶有限公司 | Anti-burning conveyor belt |
| CN102730366B (en) * | 2012-07-12 | 2015-04-22 | 重庆中南橡胶有限公司 | Anti-burning conveyor belt |
| CN103044713A (en) * | 2012-12-28 | 2013-04-17 | 大连亚泰科技新材料股份有限公司 | Preparation method for magnesium halogen-free flame retardant and application of magnesium halogen-free flame retardant to flame-retardant high-temperature-resistant tape |
| CN103361968A (en) * | 2013-07-05 | 2013-10-23 | 吴江龙纺纺织有限公司 | Preparation method of flame-retardant purified cotton fabric |
| CN106608981A (en) * | 2016-12-06 | 2017-05-03 | 宁波卡利特新材料有限公司 | Preparation method of flame retardant pyrophyllite rubber reinforcing agent |
| CN107513200A (en) * | 2017-09-07 | 2017-12-26 | 浙江大学宁波理工学院 | Polyethylene/metal hydroxides/nano carbon black fire proofing and preparation method thereof |
| WO2020011006A1 (en) * | 2018-07-13 | 2020-01-16 | 杭州星庐科技有限公司 | Ageing-resistant rubber composition and processing method therefor and use thereof |
| US11993703B2 (en) | 2018-07-13 | 2024-05-28 | Hangzhou Xinglu Technologies Co., Ltd. | Ageing-resistant rubber composition and processing method therefor and use thereof |
| CN116574341A (en) * | 2023-07-12 | 2023-08-11 | 河北信泰新材料有限公司 | Graphite composite polystyrene particle and preparation method thereof |
| CN116574341B (en) * | 2023-07-12 | 2023-10-03 | 河北信泰新材料有限公司 | Graphite composite polystyrene particle and preparation method thereof |
| CN117247620A (en) * | 2023-10-09 | 2023-12-19 | 穿越电缆集团有限公司 | Crosslinked polyethylene flame-retardant cable and preparation method thereof |
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Application publication date: 20120711 |