CN104788760A - Cover rubber simultaneously using chemigum and chlorinated polyethylene for oil-proof flame-retardant conveyer belt - Google Patents
Cover rubber simultaneously using chemigum and chlorinated polyethylene for oil-proof flame-retardant conveyer belt Download PDFInfo
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- CN104788760A CN104788760A CN201510192237.9A CN201510192237A CN104788760A CN 104788760 A CN104788760 A CN 104788760A CN 201510192237 A CN201510192237 A CN 201510192237A CN 104788760 A CN104788760 A CN 104788760A
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- parts
- chlorinated polyethylene
- paracril
- retardant
- conveyer belt
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Classifications
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to cover rubber simultaneously using chemigum and chlorinated polyethylene for an oil-proof flame-retardant conveyer belt, and belongs to the technical field of rubber conveyer belts. The cover rubber simultaneously adopts the chemigum containing high acrylonitrile and the chlorinated polyethylene, a plastifier adopts a coumarone resin which is not easy to perspire by an oil, and the oil-proof property can satisfy DO-level requirements in HG/T3714-2003; a flame-retardant agent adopts chlorcosane, antimony trioxide, boric acid zinc and aluminum hydroxide, so that the flame-retardant property can satisfy K-level requirements in DIN22131. The cover rubber disclosed by the invention adopts a peroxide vulcanization system simultaneously using DCP and PDM, the co-crosslinking of the chemigum and the chlorinated polyethylene combines new technologies of high-structure carbon black N234 and intermediate super abrasion carbon black N220, so that the physical mechanical properties of a rubber material simultaneously using the chemigum and the chlorinated polyethylene are greatly improved, and the thermo-oxidative aging resistant property and the ozone aging resistant property are obviously improved.
Description
Technical field
The present invention relates to the oil resistant flame-retardant conveyer belt coating rubber of a kind of paracril and chlorinated polyethylene compound, this rubber cover adopts paracril and chlorinatedpolyethylene to be main body, belongs to rubber conveyer belt technical field.
Background technology
Oil resistant fire retarding conveying band is mainly used in the transport of some oil-containing materials.Because oil-containing material oil-containing is inflammable again, this just requires that conveyer belt coating rubber possesses oil resistance on the basis of flame-retardancy requirements simultaneously.The non-oil resistant flame-retardant conveyer belt coating rubber of tradition easily absorbs the oil content in material and expands, and greatly reduces physical and mechanical properties, reduction of service life.
For meeting the fire-retardant requirement of oil resistant, the fire-retardant rubber cover of existing oil resistant is mainly with paracril, and chloroprene rubber, chlorinatedpolyethylene and polyvinyl chloride are that main body is prepared.Chloroprene rubber oil resistance is general and price is higher; Chlorinatedpolyethylene and polyvinyl chloride under conventional vulcanization can not with paracril co-crosslinking, physical and mechanical properties is very low, so the fire-retardant rubber cover of existing oil resistant can only meet more low-level requirement in concerned countries or industry standard, cannot meet international standards requirement.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the oil resistant flame-retardant conveyer belt coating rubber of a kind of paracril and chlorinated polyethylene compound is provided, its oil resistance can meet DO levels necessitate in HG/T3714-2003, flame retardant properties and physicals meet K levels necessitate in DIN22131, and meet international standards requirement.
According to technical scheme provided by the invention, the oil resistant flame-retardant conveyer belt coating rubber of a kind of paracril and chlorinated polyethylene compound, formula rate is as follows:
Rubber: high acrylonitrile paracril 65 ~ 85 parts, chlorinatedpolyethylene 15 ~ 35 parts;
Fill and strengthening agent: N234 carbon black 10 ~ 50 parts, N220 carbon black 10 ~ 50 parts;
Softening softening agent: coumarone indene resin 4 ~ 15 parts;
Anti-aging agent: antioxidant 4020 1 ~ 2 part, anti-aging agent RD 1 ~ 2 part, Microcrystalline Wax 1 ~ 2 part;
Promoting agent: 3 ~ 10 parts, zinc oxide, 3 ~ 10 parts, magnesium oxide, stearic acid 0.5 ~ 3 part;
Fire retardant: clorafin 15 ~ 45 parts, antimonous oxide 3 ~ 15 parts, 10 ~ 30 parts, aluminium hydroxide, zinc borate 5 ~ 20 parts;
Vulcanizing agent: dicumyl peroxide DCP 1 ~ 5 part, penylene bismaleimides PDM 0.5 ~ 4 part between N, N'-.
Acrylonitrile content 28% ~ 40% in described high acrylonitrile paracril, in chlorinatedpolyethylene, cl content is 30% ~ 45%.
Described antioxidant 4020 is N-(1,3-dimethyl) butyl-N'-diphenyl-para-phenylene diamine, and anti-aging agent RD is 2,2,4 trimethyl 1,2 dihydroquinoline polymer.
Described chlorine in chlorinated paraffin content is 70%.
Preparation method is specific as follows:
(1) compounding procedure: the mixer mixing time-division two periods carries out.One section mixing first adds high acrylonitrile paracril 65 ~ 85 parts; Then N234 carbon black 10 ~ 50 parts is added, N220 carbon black 10 ~ 50 parts; Add chlorinatedpolyethylene 15 ~ 35 parts again, clorafin 15 ~ 45 parts, antimonous oxide 3 ~ 15 parts, 10 ~ 30 parts, aluminium hydroxide, zinc borate 5 ~ 20 parts, coumarone 4 ~ 15 parts; Finally add anti-aging agent RD 1 ~ 2 part, antioxidant 4020 1 ~ 2 part, Microcrystalline Wax 1 ~ 2 part, 3 ~ 10 parts, zinc oxide, 3 ~ 10 parts, magnesium oxide, stearic acid 0.5 ~ 3 part, the refining time is 3 ~ 5min, and machine temperature control is at 135 DEG C ~ 150 DEG C.
Two-stage mixing disposable input vulcanizing agent DCP 1 ~ 5 part, vulcanizing agent PDM 0.5 ~ 4 part, machine temperature control is at 80 ~ 95 DEG C, and refining 1 ~ 3min, obtains rubber unvulcanizate.
(2) operation is extruded in calendering: step (1) gained rubber unvulcanizate is carried out freshening on a mill until, freshening temperature 60 ~ 80 DEG C, knit mark 3 ~ 5min, then drops into rolling press, is rolled into the rubber cover film of desired thickness and width; Or directly the rubber unvulcanizate of step (1) gained is directly dropped into cold feed extruder, be rolled into the rubber cover film of desired thickness and width.
(3) molding procedure: step (2) gained rubber cover film and rubberizing canvas and limit sticker are synthesized made-up belt.
(4) vulcanization process: step (3) gained made-up belt is carried out sulfuration on vulcanizing press, curing temperature is 150 ~ 160 DEG C, time controling at 30 ~ 40 minutes, oil cylinder working-pressure 6 ~ 18MPa.
Beneficial effect of the present invention: the high acrylonitrile paracril that the present invention adopts has excellent resistance for nonpolar with low-pole oils and solvent, adopt simultaneously and not easily to be separated out by oils and with the good coumarone indene resin of paracril consistency as softening agent, oil resistance meets DO levels necessitate in HG/T3714-2003.
Paracril and chlorinated polyethylene compound can improve rubber cover flame retardant properties and not affect oil resistance, and coordinate clorafin, antimonous oxide, zinc borate, the fire retardants such as aluminium hydroxide, flame retardant properties can meet K levels necessitate in DIN22131.
The present invention adopt DCP and PDM and peroxide vulcanizing system, solve the co-crosslinking problem of paracril and chlorinatedpolyethylene, significantly improve the physical and mechanical properties of both blend compounds material, and significantly improve heat oxygen aging resistance and ozone-resistant aging property.The present invention adopts new technology super-normal structure black N234 and intermediate super abrasion furnace black N220 use, can give tensile strength and the wear resisting property of rubber cover excellence.
Oil resistant fire-retardant rubber cover performance and physical and mechanical properties as described in Table 1.
Table 1
Embodiment
Below in conjunction with specific embodiment, the invention will be further described
Raw material described in following examples is market and buys.Wherein high acrylonitrile paracril is purchased from Zhenjiang Nan Di Chemical Co., Ltd.; Chlorinatedpolyethylene is purchased from Weifang Yaxing Chemical Co., Ltd.; Nano zine oxide is purchased from Shandong Xing Ya novel material limited-liability company; Activated magnesia is purchased from Dunhuang Chenical Plant, Shanghai; Oil chemical industry in stearic acid is good purchased from Shanghai; Anti-aging agent RD and antioxidant 4020 are purchased from Nanjing Chemical Industry Company; Carbon black N220 and N234 is purchased from Jiangxi Black Cat Carbon Black Co., Ltd.; Coumarone indene resin is purchased from Yantai Heng Mao Chemical Co., Ltd.; Fire retardant zinc borate, aluminium hydroxide and antimonous oxide are all purchased from Jinan Taixing Fine Chemicals Co., ltd; Vulcanizing agent PDM is purchased from the Huangyan East Sea, Taizhou Chemical Co., Ltd.; Vulcanizing agent DCP is purchased from Shanghai Gaoqiao petrochemical industry; Microcrystalline Wax is purchased from Nanyang wax Fine Chemical Works.
Embodiment 1
An oil resistant flame-retardant conveyer belt coating rubber for paracril and chlorinated polyethylene compound, formula rate is as follows by weight:
High acrylonitrile paracril 75 parts, chlorinatedpolyethylene 25 parts; N234 carbon black 30 parts, N220 carbon black 15 parts; Clorafin 25 parts, zinc borate 10 parts, antimonous oxide 10 parts, 15 parts, aluminium hydroxide; 5 parts, zinc oxide, 5 parts, magnesium oxide, stearic acid 2 parts; Anti-aging agent RD 2 parts, antioxidant 4020 1.5 parts, Microcrystalline Wax 1.5 parts; Coumarone indene resin 10 parts; Vulcanizing agent PDM 1 part, vulcanizing agent DCP 3 parts.
Oil resistant fire-retardant rubber cover properties measured value prepared by the present embodiment is as shown in table 2:
Table 2
Preparation method is specific as follows:
(1) compounding procedure: the mixer mixing time-division two periods carries out.One section mixing first adds high acrylonitrile paracril 65 ~ 85 parts; Then N234 carbon black 10 ~ 50 parts is added, N220 carbon black 10 ~ 50 parts; Add chlorinatedpolyethylene 15 ~ 35 parts again, clorafin 15 ~ 45 parts, antimonous oxide 3 ~ 15 parts, 10 ~ 30 parts, aluminium hydroxide, zinc borate 5 ~ 20 parts, coumarone 4 ~ 15 parts; Finally add anti-aging agent RD 1 ~ 2 part, antioxidant 4020 1 ~ 2 part, Microcrystalline Wax 1 ~ 2 part, 3 ~ 10 parts, zinc oxide, 3 ~ 10 parts, magnesium oxide, stearic acid 0.5 ~ 3 part, the refining time is 3 ~ 5min, and machine temperature control is at 135 DEG C ~ 150 DEG C.
Two-stage mixing disposable input vulcanizing agent DCP 1 ~ 5 part, vulcanizing agent PDM 0.5 ~ 4 part, machine temperature control is at 80 ~ 95 DEG C, and refining 1 ~ 3min, obtains rubber unvulcanizate.
(2) operation is extruded in calendering: step (1) gained rubber unvulcanizate is carried out freshening on a mill until, freshening temperature 60 ~ 80 DEG C, knit mark 3 ~ 5min, then drops into rolling press, is rolled into the rubber cover film of desired thickness and width; Or directly the rubber unvulcanizate of step (1) gained is directly dropped into cold feed extruder, be rolled into the rubber cover film of desired thickness and width.
(3) molding procedure: step (2) gained rubber cover film and rubberizing canvas and limit sticker are synthesized made-up belt.
(4) vulcanization process: step (3) gained made-up belt is carried out sulfuration on vulcanizing press, curing temperature is 150 ~ 160 DEG C, time controling at 30 ~ 40 minutes, oil cylinder working-pressure 6 ~ 18MPa.
Embodiment 2
An oil resistant flame-retardant conveyer belt coating rubber for paracril and chlorinated polyethylene compound, formula rate is as follows by weight:
High acrylonitrile paracril 65 parts, chlorinatedpolyethylene 35 parts; N234 carbon black 15 parts, N220 carbon black 35 parts; Clorafin 30 parts, zinc borate 10 parts, antimonous oxide 7.5 parts, 20 parts, aluminium hydroxide; 5 parts, zinc oxide, 8 parts, magnesium oxide, stearic acid 2 parts; Anti-aging agent RD 1.5 parts, antioxidant 4020 1 part, Microcrystalline Wax 1.5 parts; Coumarone indene resin 15 parts; Vulcanizing agent PDM 0.5 part, vulcanizing agent DCP 5 parts.
Preparation process as described in Example 1.
Embodiment 3
An oil resistant flame-retardant conveyer belt coating rubber for paracril and chlorinated polyethylene compound, formula rate is as follows by weight:
High acrylonitrile paracril 85 parts, chlorinatedpolyethylene 15 parts; N234 carbon black 35 parts, N220 carbon black 10 parts; Clorafin 15 parts, zinc borate 5 parts, antimonous oxide 10 parts, 15 parts, aluminium hydroxide; 5 parts, zinc oxide, 3 parts, magnesium oxide, stearic acid 2 parts; Anti-aging agent RD 2 parts, antioxidant 4020 1.5 parts, Microcrystalline Wax 2 parts; Coumarone indene resin 6 parts; Vulcanizing agent PDM 0.5 part, vulcanizing agent DCP 3 parts.
Preparation process as described in Example 1.
Claims (4)
1. an oil resistant flame-retardant conveyer belt coating rubber for paracril and chlorinated polyethylene compound, is characterized in that formula rate is as follows:
Rubber: high acrylonitrile paracril 65 ~ 85 parts, chlorinatedpolyethylene 15 ~ 35 parts;
Fill and strengthening agent: N234 carbon black 10 ~ 50 parts, N220 carbon black 10 ~ 50 parts;
Softening softening agent: coumarone indene resin 4 ~ 15 parts;
Anti-aging agent: antioxidant 4020 1 ~ 2 part, anti-aging agent RD 1 ~ 2 part, Microcrystalline Wax 1 ~ 2 part;
Promoting agent: 3 ~ 10 parts, zinc oxide, 3 ~ 10 parts, magnesium oxide, stearic acid 0.5 ~ 3 part;
Fire retardant: clorafin 15 ~ 45 parts, antimonous oxide 3 ~ 15 parts, 10 ~ 30 parts, aluminium hydroxide, zinc borate 5 ~ 20 parts;
Vulcanizing agent: dicumyl peroxide DCP 1 ~ 5 part, penylene bismaleimides PDM 0.5 ~ 4 part between N, N'-.
2. the oil resistant flame-retardant conveyer belt coating rubber of paracril and chlorinated polyethylene compound as claimed in claim 1, it is characterized in that: acrylonitrile content 28% ~ 40% in described high acrylonitrile paracril, in chlorinatedpolyethylene, cl content is 30% ~ 45%.
3. the oil resistant flame-retardant conveyer belt coating rubber of paracril and chlorinated polyethylene compound as claimed in claim 1, is characterized in that: described antioxidant 4020 is N-(1,3-dimethyl) butyl-N'-diphenyl-para-phenylene diamine, anti-aging agent RD is 2,2,4-trimethylammonium-1,2-dihydroquinoline polymkeric substance.
4. the oil resistant flame-retardant conveyer belt coating rubber of paracril and chlorinated polyethylene compound as claimed in claim 1, is characterized in that: described chlorine in chlorinated paraffin content is 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192237.9A CN104788760A (en) | 2015-04-21 | 2015-04-21 | Cover rubber simultaneously using chemigum and chlorinated polyethylene for oil-proof flame-retardant conveyer belt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192237.9A CN104788760A (en) | 2015-04-21 | 2015-04-21 | Cover rubber simultaneously using chemigum and chlorinated polyethylene for oil-proof flame-retardant conveyer belt |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330788A (en) * | 2015-12-01 | 2016-02-17 | 芜湖豫新世通汽车空调有限公司 | Flame-retardant rubber pipe of automobile air conditioner and preparation method of flame-retardant rubber pipe |
| CN107216506A (en) * | 2017-06-01 | 2017-09-29 | 十堰银森工贸有限公司 | A kind of oil resistant synthetic rubber |
| CN107383472A (en) * | 2017-07-12 | 2017-11-24 | 中德（扬州）输送工程技术有限公司 | A kind of oil resistant conveyer rubber cover and preparation method thereof |
| CN110643089A (en) * | 2019-09-27 | 2020-01-03 | 江苏冠联新材料科技股份有限公司 | NBR (nitrile-butadiene rubber) rubber compound for flame-retardant wear-resistant conveyor belt covering layer and preparation method thereof |
| CN111087659A (en) * | 2020-01-03 | 2020-05-01 | 河北九洲橡胶科技股份有限公司 | Oil-resistant flame-retardant conveyor belt cover rubber and manufacturing method thereof |
| CN111205525A (en) * | 2019-12-23 | 2020-05-29 | 李红权 | Cold-resistant high-oil-resistance anti-slip rubber sole formula |
| CN111732769A (en) * | 2020-05-13 | 2020-10-02 | 河北九洲橡胶科技股份有限公司 | Antimony-free wear-resistant PVG flame-retardant conveyor belt cover rubber and preparation method thereof |
| CN114772162A (en) * | 2022-04-27 | 2022-07-22 | 江苏奥斯达带业有限公司 | Oil-resistant light conveying belt and preparation method of oil-resistant layer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330788A (en) * | 2015-12-01 | 2016-02-17 | 芜湖豫新世通汽车空调有限公司 | Flame-retardant rubber pipe of automobile air conditioner and preparation method of flame-retardant rubber pipe |
| CN107216506A (en) * | 2017-06-01 | 2017-09-29 | 十堰银森工贸有限公司 | A kind of oil resistant synthetic rubber |
| CN107383472A (en) * | 2017-07-12 | 2017-11-24 | 中德（扬州）输送工程技术有限公司 | A kind of oil resistant conveyer rubber cover and preparation method thereof |
| CN110643089A (en) * | 2019-09-27 | 2020-01-03 | 江苏冠联新材料科技股份有限公司 | NBR (nitrile-butadiene rubber) rubber compound for flame-retardant wear-resistant conveyor belt covering layer and preparation method thereof |
| CN111205525A (en) * | 2019-12-23 | 2020-05-29 | 李红权 | Cold-resistant high-oil-resistance anti-slip rubber sole formula |
| CN111087659A (en) * | 2020-01-03 | 2020-05-01 | 河北九洲橡胶科技股份有限公司 | Oil-resistant flame-retardant conveyor belt cover rubber and manufacturing method thereof |
| CN111732769A (en) * | 2020-05-13 | 2020-10-02 | 河北九洲橡胶科技股份有限公司 | Antimony-free wear-resistant PVG flame-retardant conveyor belt cover rubber and preparation method thereof |
| CN114772162A (en) * | 2022-04-27 | 2022-07-22 | 江苏奥斯达带业有限公司 | Oil-resistant light conveying belt and preparation method of oil-resistant layer |
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Application publication date: 20150722 |