CN103232621B - Wear-resistant high-flame-retardant laminated canvas conveyor belt covering rubber for underground mine and preparation method thereof - Google Patents
Wear-resistant high-flame-retardant laminated canvas conveyor belt covering rubber for underground mine and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a wear-resistant high-flame-retardant laminated canvas conveyor belt covering rubber for a mine, which is characterized by comprising the following steps of: plasticating natural rubber on an open mill, adding organic montmorillonite, tapping the natural rubber after the organic montmorillonite is completely mixed into the natural rubber, and obtaining organic montmorillonite modified natural rubber; mixing organic montmorillonite modified natural rubber, butadiene rubber, polyvinyl chloride, an anti-aging agent, a flame retardant, zinc oxide, stearic acid and a softening agent for a period of time, and then adding a reinforcing agent for continuous mixing; after discharging, the internal mixer is used for turning over and mixing by an open mill, a bag turning machine is used for turning over and packaging, sheets are discharged, a sheet isolating agent is coated, and the internal mixer is cooled and parked; then the mixture enters an internal mixer to be added with an accelerant and sulfur for internal mixing, after discharging, turning a bag, coating a rubber sheet isolating agent, cooling and standing, and then the mixture is calendered on a calender to form the covering rubber with the required specification thickness and width. The covering rubber disclosed by the invention is good in wear resistance, excellent in flame retardant property, simple in preparation method and easy to operate.
Description
Technical field
The present invention relates to wear-resisting high flame retardant laminated canvas conveyer belt coating rubber and preparation method thereof under a kind of mine, especially a kind of rubber cover of the underground mine use fire retarding conveying band for meeting MT830-2008 standard.
Background technology
After last century the eighties, coventional type canvas core conveyor belt exits the market of underground coal mine, the substitute is a kind of integral weaving core conveyer belt utilizing igelite to stick with paste dipping fire retardant, i.e. PVC conveying belt, the rubber cover of rubber mass is sticked after the nineties, Here it is PVG conveying belt on the surface of PVC conveying belt.Current PVC and PVG whole core fabrics flame resistance band is most popular fire retarding conveying band in China's mine, though this conveying belt meets the requirement of coal mine downhole safety production compared with plain sail core conveyer belt, but sacrifice the good mechanical property of plain sail core conveyer belt, also there is a big difference for the high-strength anti-flaming band used with world-technology developed country.
In the world to the requirement of coal mine flame-retardant conveying belt of new generation be high flame retardant, the amount of being fuming is little, Poisonous Gas is little, safety, environmental protection, simultaneously belt body intensity is high, long service life.Two decades years comes, the PVC PVG conveying belt of the integral weaving core body dipping PVC plastic that China's coal-mine down-hole mining tunnel uses, Year's consumption nearly 4,000,000,000, and it uses but following drawbacks limit:
1, the flame-retarding performance of this conveying belt is good, poor mechanical property, because poly wear resistance only has 1/5th of elastomeric material, when using elastomeric material to stick surface, because two-phase modulus has big difference, the thickness of rubber rubber cover is confined within 2mm, has had a strong impact on the work-ing life of conveying belt, it is reported average only 1 year of the work-ing life of PVC/PVG conveying belt;
2, comparatively rubber is high due to second-order transition temperature for polyvinyl chloride, and made conveying belt hardness is bigger than normal, and lower temperature resistance is bad, and when less than-10 DEG C, belt body stiff groove forming character difference and be easy to fracture, has a strong impact on normal use;
3, be with body thickness excessive after this belt intension > 2000N, be unable to supply≤delivered downhole the machine cylinder of 650mm, and this conveying belt can only carry out mechanical splice, strength of joint is low, and maintenance is large.
Polynite is the layered silicate with unique 2:1 type crystal structure, has abundant raw material source, the advantage such as cheap.Due to total specific surface area of layered silicate lamella and deformation coefficient all very high, the polynite particle reaching nano-scale dispersion imparts the many excellences of rubber and special performance, obviously can improve the mechanical property, flame retardant properties etc. of matrix material.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, to provide under a kind of mine with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber, there is good flame retardant properties, the wear resisting property simultaneously had again.
Another object of the present invention is to provide the preparation method with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under a kind of mine.
According to technical scheme provided by the invention, with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under a kind of mine, feature is, comprise following component, component ratio by mass number meter: 20 ~ 60 parts of natural rubbers, 10 ~ 20 parts of cis-1,4-polybutadiene rubbers, 6 ~ 10 parts of organo montmorillonites, 1 ~ 2 part of zinc oxide, 1 ~ 2 part of stearic acid, 6 ~ 10 parts of polyvinyl chloride, 1 ~ 5 part of anti-aging agent, 1 ~ 10 part of tenderizer, 30 ~ 60 portions of strengthening agents, 40 ~ 85 parts of fire retardants, 1 ~ 2.5 part of sulphur, 1 ~ 2.5 part of promotor;
Add organo montmorillonite after being plasticated on a mill until by natural rubber, treat that organo montmorillonite is all mixed in natural rubber, natural rubber is tapped rubber, obtain organic imvite modified natural rubber; By organic imvite modified natural rubber, cis-1,4-polybutadiene rubber, polyvinyl chloride, anti-aging agent, fire retardant, zinc oxide, stearic acid and tenderizer in Banbury mixer after mixing for some time, then add strengthening agent and continue mixing; After Banbury mixer discharge, with mill turn refining, bag tilting machine turns over bag, slice, after being coated with film isolating agent, cooling, parking; After entering that Banbury mixer adds promotor, sulphur carries out banburying again, turn refining after discharge, turn over bag, be coated with film isolating agent, cool, parking, rolling press is rolled into the rubber cover of required gauge thickness and width.
In an embodiment, described anti-aging agent is antioxidant 4020 or antioxidant BLE.
In an embodiment, described strengthening agent is carbon black N220.
In an embodiment, described fire retardant is aluminium hydroxide, 70# clorafin, antimonous oxide, zinc borate or fire retardant MB202.
In an embodiment, described promotor is accelerant CZ.
In an embodiment, described tenderizer is coumarone indene resin.
With wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under mine of the present invention, feature is, adopts following processing step, component ratio by mass number meter:
(1) roll spacing of two roller mill is adjusted to 0.2mm, and after being plasticated 3 ~ 5 minutes in two roller mill by 20 ~ 60 parts of natural rubbers, plasticating temperature is 40 ~ 70 DEG C; The roll spacing tuning up two roller mill, to 2.5mm, allows the whole bag roller of natural rubber, adds 6 ~ 10 parts of organo montmorillonites, treats that organo montmorillonite is all mixed in natural rubber, tap rubber to the employing tapping knife of natural rubber; Finally the roll spacing of two roller mill is adjusted to 0.1mm, thin-pass 3 ~ 5 times, obtains organic imvite modified natural rubber;
(2) organic imvite modified natural rubber step (1) obtained, 10 ~ 20 parts of cis-1,4-polybutadiene rubbers, 6 ~ 10 parts of polyvinyl chloride, 1 ~ 5 part of anti-aging agent, 40 ~ 85 parts of fire retardants, 1 ~ 2 part of zinc oxide, 1 ~ 2 part of stearic acid and 1 ~ 10 part of tenderizer add mixing 30 ~ 40s in Banbury mixer, adding 30 ~ 60 portions of strengthening agents again continues mixing, total mixing time is 3 ~ 5min, and melting temperature is 120 ~ 135 DEG C;
(3) after Banbury mixer discharge, with mill at 110 ~ 130 DEG C of 1 ~ 3min that turn refining; After turning refining, upper bag tilting machine carries out turning over bag 3 ~ 5 times; Turn over slice after bag, double spread sheet separant, be cooled to room temperature, park more than 4 hours; Enter Banbury mixer again, add 1 ~ 2.5 part of promotor, 1 ~ 2.5 part of sulphur carries out banburying, banburying temperature is 90 ~ 105 DEG C, and the banburying time is 1 ~ 3min;
(4) turn refining in mill after Banbury mixer discharge, the temperature that turns refining is 85 ~ 100 DEG C again, and the time of turning refining is 1 ~ 3min; After turning refining, upper bag tilting machine carries out turning over bag 3 ~ 5 times; Turn over the rear slice double spread sheet separant of bag, be cooled to room temperature, park more than 8 hours, rolling press is rolled into the rubber cover of required gauge thickness and width.
Underground mine use of the present invention wear-resisting high flame retardant laminated canvas conveyer belt coating rubber adopts organic imvite modified natural rubber preparation, and wear resistant is good, excellent fireproof performance, and alternative PVC/PVG integral core conveying belt is in the use of underground coal mine; The conveying belt adopting this rubber cover to make can support the use with all kinds of large conveying quantity, long belt conveyor, the industries such as widespread use coal mining.After rubber cover of the present invention uses on underground mine use wear-resisting high flame retardant laminated canvas conveying belt, make underground mine use wear-resisting high flame retardant laminated canvas conveying belt both have good flame retardant properties, there is again good wear resisting property.And underground mine use wear-resisting high flame retardant laminated canvas conveyer belt coating rubber preparation method is simple, easy to operate.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Film isolating agent of the present invention is commercially available film isolating agent, is not specifically limited; The film isolating agent of the model YT-S933 for the production of Suzhou Yun Yuan system novel material company limited adopted in an embodiment of the present invention.
The raw materials of wear-resisting high flame retardant laminated canvas conveyer belt coating rubber of the present invention adopts natural rubber, and natural rubber has self-enhancement, has higher mechanical strength, there is good flexible resistance simultaneously, hysteresis loss is little, and heat-dissipating is low, and over-all properties is more excellent than other rubber.
Organo montmorillonite of the present invention has special nano-lamellar structure, can reduce the frictional coefficient of storeroom in friction process, and play the favorable elasticity of rubber molecular chain and the wear resisting property of montmorillonite layer, synergistic effect improves the wear resistance of material.In addition, define intercalation type nano composite material after rubber macromolecule intercalation, the lamella of polynite creates certain obstruct provide protection to interlayer macromole; When burning, polynite can also form sealing coat at material surface, effectively hinder the combustion heat to unburned part transmission, and degradation production spreads to flame zone, slow down the speed that volatile matter produces, thus the flame retardant properties of matrix material is improved.
Embodiment 1: with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under a kind of mine, adopt following processing step, component ratio by mass number meter:
(1) roll spacing of two roller mill is adjusted to 0.2mm, and after being plasticated 3 minutes in two roller mill by 20 parts of natural rubbers, plasticating temperature is 70 DEG C; The roll spacing tuning up two roller mill, to 2.5mm, allows the whole bag roller of natural rubber, adds 6 parts of organo montmorillonites, treats that organo montmorillonite is all mixed in natural rubber, tap rubber to the employing tapping knife of natural rubber; Finally the roll spacing of two roller mill is adjusted to 0.1mm, thin-pass 3 times, obtains organic imvite modified natural rubber;
(2) organic imvite modified natural rubber step (1) obtained, 10 parts of cis-1,4-polybutadiene rubbers, 6 parts of polyvinyl chloride, 1 part of antioxidant 4020,5 parts of aluminium hydroxides, 5 parts of 70# clorafins, 5 parts of antimonous oxides, 5 parts of zinc borates, 20 parts of fire retardant MB202,1 part of zinc oxide, 1 part of stearic acid and 1 part of coumarone indene resin add mixing 30s in Banbury mixer, adding 30 parts of carbon black N220 again continues mixing, total mixing time is 3min, and melting temperature is 135 DEG C;
(3) after Banbury mixer discharge, with mill at 110 DEG C of 3min that turn refining; After turning refining, upper bag tilting machine carries out turning over bag 3 times; Turn over slice after bag, double spread sheet separant, be cooled to room temperature, park more than 4 hours; Enter Banbury mixer again, add 1 part of accelerant CZ, 1 part of sulphur carries out banburying, banburying temperature is 90 DEG C, and the banburying time is 3min;
(4) turn refining in mill after Banbury mixer discharge, the temperature that turns refining is 85 DEG C again, and the time of turning refining is 3min; After turning refining, upper bag tilting machine carries out turning over bag 3 times; Turn over the rear slice double spread sheet separant of bag, be cooled to room temperature, park more than 8 hours, rolling press is rolled into the rubber cover of required gauge thickness and width.
At normal temperatures, obtained rubber cover and the framework material that posts adhesive glue are carried out composite molding on four-roll calender, band embryo after shaping is carried out sulfuration on vulcanizing press, curing temperature is 140 ~ 170 DEG C, sulfide stress is 10 ~ 15MPa, band embryo after sulfuration, after cold formed, obtains conveying belt; Every physical and mechanical properties of this conveying belt and flame retardant properties as shown in table 1.
Embodiment 2: with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under a kind of mine, adopt following processing step, component ratio by mass number meter:
(1) roll spacing of two roller mill is adjusted to 0.2mm, and after being plasticated 5 minutes in two roller mill by 60 parts of natural rubbers, plasticating temperature is 40 DEG C; The roll spacing tuning up two roller mill, to 2.5mm, allows the whole bag roller of natural rubber, adds 10 parts of organo montmorillonites, treats that organo montmorillonite is all mixed in natural rubber, tap rubber to the employing tapping knife of natural rubber; Finally the roll spacing of two roller mill is adjusted to 0.1mm, thin-pass 5 times, obtains organic imvite modified natural rubber;
(2) organic imvite modified natural rubber step (1) obtained, 20 parts of cis-1,4-polybutadiene rubbers, 10 parts of polyvinyl chloride, 5 parts of antioxidant BLEs, 10 parts of aluminium hydroxides, 10 parts of 70# clorafins, 10 parts of antimonous oxides, 55 parts of zinc borates, 2 parts of zinc oxide, 2 parts of stearic acid and 10 parts of coumarone indene resins add mixing 40s in Banbury mixer, adding 60 parts of carbon black N220 again continues mixing, total mixing time is 5min, and melting temperature is 120 DEG C;
(3) after Banbury mixer discharge, with mill at 130 DEG C of 1min that turn refining; After turning refining, upper bag tilting machine carries out turning over bag 5 times; Turn over slice after bag, double spread sheet separant, be cooled to room temperature, park more than 4 hours; Enter Banbury mixer again, add 2.5 parts of accelerant CZs, 2.5 parts of sulphur carry out banburying, banburying temperature is 105 DEG C, and the banburying time is 1min;
(4) turn refining in mill after Banbury mixer discharge, the temperature that turns refining is 100 DEG C again, and the time of turning refining is 1min; After turning refining, upper bag tilting machine carries out turning over bag 5 times; Turn over the rear slice double spread sheet separant of bag, be cooled to room temperature, park more than 8 hours, rolling press is rolled into the rubber cover of required gauge thickness and width.
At normal temperatures, obtained rubber cover and the framework material that posts adhesive glue are carried out composite molding on four-roll calender, band embryo after shaping is carried out sulfuration on vulcanizing press, curing temperature is 140 ~ 170 DEG C, sulfide stress is 10 ~ 15MPa, band embryo after sulfuration, after cold formed, obtains conveying belt; Every physical and mechanical properties of this conveying belt and flame retardant properties as shown in table 1.
Embodiment 3: with wear-resisting high flame retardant laminated canvas conveyer belt coating rubber under a kind of mine, adopt following processing step, component ratio by mass number meter:
(1) roll spacing of two roller mill is adjusted to 0.2mm, and after being plasticated 4 minutes in two roller mill by 50 parts of natural rubbers, plasticating temperature is 50 DEG C; The roll spacing tuning up two roller mill, to 2.5mm, allows the whole bag roller of natural rubber, adds 8 parts of organo montmorillonites, treats that organo montmorillonite is all mixed in natural rubber, tap rubber to the employing tapping knife of natural rubber; Finally the roll spacing of two roller mill is adjusted to 0.1mm, thin-pass 4 times, obtains organic imvite modified natural rubber;
(2) organic imvite modified natural rubber step (1) obtained, 15 parts of cis-1,4-polybutadiene rubbers, 8 parts of polyvinyl chloride, 2 parts of antioxidant 4020s, 10 parts of aluminium hydroxides, 10 parts of 70# clorafins, 10 parts of antimonous oxides, 20 parts of zinc borates, 1.5 parts of zinc oxide, 1.5 parts of stearic acid and 5 parts of coumarone indene resins add mixing 35s in Banbury mixer, adding 50 parts of carbon black N220 again continues mixing, total mixing time is 4min, and melting temperature is 125 DEG C;
(3) after Banbury mixer discharge, with mill at 120 DEG C of 2min that turn refining; After turning refining, upper bag tilting machine carries out turning over bag 4 times; Turn over slice after bag, double spread sheet separant, be cooled to room temperature, park more than 4 hours; Enter Banbury mixer again, add 2 parts of accelerant CZs, 2 parts of sulphur carry out banburying, banburying temperature is 100 DEG C, and the banburying time is 2min;
(4) turn refining in mill after Banbury mixer discharge, the temperature that turns refining is 90 DEG C again, and the time of turning refining is 2min; After turning refining, upper bag tilting machine carries out turning over bag 4 times; Turn over the rear slice double spread sheet separant of bag, be cooled to room temperature, park more than 8 hours, rolling press is rolled into the rubber cover of required gauge thickness and width.
At normal temperatures, obtained rubber cover and the framework material that posts adhesive glue are carried out composite molding on four-roll calender, band embryo after shaping is carried out sulfuration on vulcanizing press, curing temperature is 140 ~ 170 DEG C, sulfide stress is 10 ~ 15MPa, band embryo after sulfuration, after cold formed, obtains conveying belt; Every physical and mechanical properties of this conveying belt and flame retardant properties as shown in table 1.
Comparative example 1:
In the Banbury mixer of 270L capacity, add the natural rubber of 60kg, the cis-1,4-polybutadiene rubber of 30kg, the polyvinyl chloride of 10kg, then the zinc oxide of 2kg is added, the stearic acid of 2kg, 2kg antioxidant 4020, 1.5kg antioxidant BLE, 5kg coumarone indene resin, 20kg aluminium hydroxide, the clorafin of 40kg, the antimonous oxide of 10kg, the zinc borate of 10kg, the MB202 of 5kg, the carbon black N220 of 40kg is added after mixing 30s, total mixing time controls at 4min, temperature controls at 125 DEG C, after Banbury mixer discharge, turn refining with mill again, cool after last slice separant coating, cooled edge number stacks, park more than 4h, enter the accelerant CZ that 270 Banbury mixeies add 1kg, the Sulfur of 2kg, temperature controls at 95 DEG C, after Banbury mixer discharge, turn refining with mill, last slice separant coating, cooling stacks to be used in order to rolling out film, this is mixed sheet, physical and mechanical properties and the flame retardant properties of the conveying belt adopting this film to make are as shown in table 1.
As shown in table 1, the various performance parameters of conveying belt made of the rubber cover obtained for embodiment 1 ~ embodiment 3 compares with the parameters of comparative example 1.
Table 1: the Performance comparision of comparative example 1 of the present invention, embodiment 1 ~ embodiment 3
| Performance | Comparative example 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength/MPa | 18.6 | 19.0 | 19.3 | 18.4 |
| 100% tensile modulus/MPa | 3.1 | 2.8 | 2.9 | 3.0 |
| 300% tensile modulus/MPa | 10.2 | 10.7 | 10.3 | 10.9 |
| Elongation at break/% | 454 | 485 | 504 | 483 |
| Tension set/% | 25 | 30 | 25 | 25 |
| Cylinder abrasion/mm 3 | 165 | 152 | 146 | 153 |
| Shao A hardness | 72 | 71 | 70 | 73 |
| Maximum heat rate of release/kw.m -2 | 295 | 287 | 281 | 270 |
Physical and mechanical properties testing method in table 1 tests mechanical property by ASTMD412 standard.Stretching experiment adopts the wide cut-off knife dumbbell plate of 6.00mm without exception, and draw speed is 500mm/min, and probe temperature is 25 DEG C.Maximum heat rate of release is that the cone calorimetry adopting FTT company of Britain to produce is tested, and other performance tests have all come according to ASTM standard.
Relatively can find out by table 1, the rubber cover maximum heat rate of release using organic imvite modified natural gum obtained reduces, and illustrates that its flame retardant properties improves; The physical and mechanical properties of the rubber cover using organic imvite modified natural gum to obtain is better than unmodified natural gum, and embodiment 2 has optimum physical and mechanical properties.In the present invention, rubber cover uses organic imvite modified natural gum wear resisting property and flame retardant properties to be all improved.
Claims (3)
1. under mine by a preparation method for wear-resisting high flame retardant laminated canvas conveyer belt coating rubber, it is characterized in that, adopt following processing step, component ratio by mass number meter:
(1) roll spacing of two roller mill is adjusted to 0.2mm, and after being plasticated 3 ~ 5 minutes in two roller mill by 20 ~ 60 parts of natural rubbers, plasticating temperature is 40 ~ 70 DEG C; The roll spacing tuning up two roller mill, to 2.5mm, allows the whole bag roller of natural rubber, adds 6 ~ 10 parts of organo montmorillonites, treats that organo montmorillonite is all mixed in natural rubber, adopt tapping knife to tap rubber to natural rubber; Finally the roll spacing of two roller mill is adjusted to 0.1mm, thin-pass 3 ~ 5 times, obtains organic imvite modified natural rubber;
(2) organic imvite modified natural rubber step (1) obtained, 10 ~ 20 parts of cis-1,4-polybutadiene rubbers, 6 ~ 10 parts of polyvinyl chloride, 1 ~ 5 part of anti-aging agent, 40 ~ 85 parts of fire retardants, 1 ~ 2 part of zinc oxide, 1 ~ 2 part of stearic acid and 1 ~ 10 part of tenderizer add mixing 30 ~ 40s in Banbury mixer, adding 30 ~ 60 portions of strengthening agents again continues mixing, total mixing time is 3 ~ 5min, and melting temperature is 120 ~ 135 DEG C;
(3) after Banbury mixer discharge, with mill at 110 ~ 130 DEG C of 1 ~ 3min that turn refining; After turning refining, upper bag tilting machine carries out turning over bag 3 ~ 5 times; Turn over slice after bag, double spread sheet separant, be cooled to room temperature, park more than 4 hours; Enter Banbury mixer again, add 1 ~ 2.5 part of promotor, 1 ~ 2.5 part of sulphur carries out banburying, banburying temperature is 90 ~ 105 DEG C, and the banburying time is 1 ~ 3min;
(4) turn refining in mill after Banbury mixer discharge, the temperature that turns refining is 85 ~ 100 DEG C again, and the time of turning refining is 1 ~ 3min; After turning refining, upper bag tilting machine carries out turning over bag 3 ~ 5 times; Turn over the rear slice double spread sheet separant of bag, be cooled to room temperature, park more than 8 hours, rolling press is rolled into the rubber cover of required gauge thickness and width.
2. under mine as claimed in claim 1 by the preparation method of wear-resisting high flame retardant laminated canvas conveyer belt coating rubber, it is characterized in that: described fire retardant is aluminium hydroxide, 70# clorafin, antimonous oxide, zinc borate or fire retardant MB202.
3. under mine as claimed in claim 1 by the preparation method of wear-resisting high flame retardant laminated canvas conveyer belt coating rubber, it is characterized in that: described tenderizer is coumarone indene resin.
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| EP3205692B1 (en) * | 2014-10-07 | 2018-07-18 | Bridgestone Corporation | Rubber composition for conveyor belts, and conveyor belt |
| CN105754171B (en) * | 2016-03-16 | 2017-12-26 | 吉林师范大学 | A kind of flame-retardant modified native rubber composite material of high-strength abrasion-proof |
| CN105754168B (en) * | 2016-03-16 | 2017-12-26 | 吉林师范大学 | A kind of high intensity oil resistant modified natural rubber composite |
| CN106987035B (en) * | 2017-04-10 | 2019-04-19 | 青岛中化新材料实验室 | A kind of steel core conveyor belt rubber cover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6403720B1 (en) * | 1999-08-31 | 2002-06-11 | The Yokohama Rubber Co., Ltd. | Rubber composition and production process thereof |
| CN102504361A (en) * | 2011-11-29 | 2012-06-20 | 浙江大学 | Thermo-oxidative ageing resistance natural rubber nano-composite material and preparation method thereof |
| CN102516610A (en) * | 2011-12-08 | 2012-06-27 | 无锡宝通带业股份有限公司 | Clay rubber nanocomposite for conveyor belt covering layer and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6403720B1 (en) * | 1999-08-31 | 2002-06-11 | The Yokohama Rubber Co., Ltd. | Rubber composition and production process thereof |
| CN102504361A (en) * | 2011-11-29 | 2012-06-20 | 浙江大学 | Thermo-oxidative ageing resistance natural rubber nano-composite material and preparation method thereof |
| CN102516610A (en) * | 2011-12-08 | 2012-06-27 | 无锡宝通带业股份有限公司 | Clay rubber nanocomposite for conveyor belt covering layer and preparation method thereof |
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Address after: 214112 Wuxi, New District, Jiangsu Mei Village Road, No. 19 Patentee after: WUXI BOTON TECHNOLOGY CO., LTD. Address before: 214112 Wuxi, New District, Jiangsu Mei Village Road, No. 19 Patentee before: Wuxi Baotong Tape Industry Co., Ltd, |
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Effective date of registration: 20220517 Address after: 214145 No. 88, Lihe East Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: WUXI BOTON CONVEYOR SOLUTION Co.,Ltd. Address before: 214112 No. 19 Zhang Cun road, Mei Village, New District, Jiangsu, Wuxi Patentee before: WUXI BOTON TECHNOLOGY Co.,Ltd. |