CN106751018A - A kind of anti-cracking conveyer belt coating rubber of high temperature resistant and preparation method thereof - Google Patents
A kind of anti-cracking conveyer belt coating rubber of high temperature resistant and preparation method thereof Download PDFInfo
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- CN106751018A CN106751018A CN201611096287.8A CN201611096287A CN106751018A CN 106751018 A CN106751018 A CN 106751018A CN 201611096287 A CN201611096287 A CN 201611096287A CN 106751018 A CN106751018 A CN 106751018A
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- conveyer belt
- cracking
- rubber
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 57
- 239000005060 rubber Substances 0.000 title claims abstract description 57
- 238000005336 cracking Methods 0.000 title claims abstract description 31
- 239000011248 coating agent Substances 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 34
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 claims abstract description 21
- 238000007670 refining Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 16
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 15
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 15
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000008117 stearic acid Substances 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 15
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 239000004902 Softening Agent Substances 0.000 claims abstract description 9
- 238000007667 floating Methods 0.000 claims abstract description 9
- 239000012467 final product Substances 0.000 claims abstract description 7
- 239000000047 product Substances 0.000 claims abstract description 4
- 239000006229 carbon black Substances 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 21
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- 239000011280 coal tar Substances 0.000 claims description 9
- 239000004014 plasticizer Substances 0.000 claims description 8
- 239000012744 reinforcing agent Substances 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims description 2
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- 239000004200 microcrystalline wax Substances 0.000 claims description 2
- 239000011297 pine tar Substances 0.000 claims description 2
- 229940068124 pine tar Drugs 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004513 sizing Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 description 10
- 230000003712 anti-aging effect Effects 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
-
- 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
-
- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
-
- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
-
- 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
- C08L2201/08—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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Belt Conveyors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to anti-cracking conveyer belt coating rubber of a kind of high temperature resistant and preparation method thereof, belong to conveyer belt coating rubber technical field.After it adds ethylene propylene diene rubber to plasticate in two-roll mill, banburying is carried out during obtained broken-down rubber is put into banbury；Then open floating weight add supporting material, zinc oxide, stearic acid, softening agent, PE powder, age resistor banburying, through turning refining, slice, normal temperature blower fan cooling be obtained one section of elastomeric compound；Then carry out two-stage mixing, take obtained one section of elastomeric compound, vulcanizing agent DCP and assistant crosslinking agent TAIC input banbury in knead through turning refining, slice, normal temperature blower fan cooling；Vulcanized again, obtained final product the anti-cracking conveyer belt coating rubber of product high temperature resistant.The present invention is added in sizing material using PE powder, and ethylene propylene diene rubber collective effect, can effectively be improved the heat resistant performance of sizing material, be improved sizing material intensity at high temperature and elongation at break, obtains the conveyer belt coating rubber with the anti-cracking of heat resistant.
Description
Technical field
The present invention relates to a kind of anti-cracking conveyer belt coating rubber and preparation method thereof of high temperature resistant, can be widely applied to it is metallurgical,
The industries such as steel, cement, belong to conveyer belt coating rubber technical field.
Background technology
With developing rapidly for modernization science and technology, mechanization, automated production level are improved constantly, the work such as steel, cement
The lasting increase of the demand of industry product.At present, in industries such as metallurgy, steel, cement, coking, high temperature sintering ore deposit, clinker,
Hot coke, the operation conveying of slag are completed by high temperature-resistance conveyor belt.
Mostly more than 200 DEG C, high temperature-resistance conveyor belt is using one section to the temperature of charge of each factory of the industries such as steel, cement
After time, the rubber cover of its working face occurs the phenomenons such as ageing hardening, cracking, working face rubber cover ageing hardening so that rubber
Glue is easily worn and damaged, and influences the service life of high temperature-resistance conveyor belt.And after working face rubber cover is cracked, tiny thing
Material particle can enter into crack, with conveyer belt operation so that fly away in atmosphere, the sky of strong influence operation field
Compression ring border, and with the increase of use time, what crack performance can be all the more is serious, and the depth of crackle gradually increases, and then makes
The heat that conveyer belt casing play must be delivered to becomes many, greatly damages the service life of high temperature-resistance conveyor belt.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of anti-cracking conveyer belt coating rubber of high temperature resistant, should
Rubber cover has excellent heat resistant performance and freedom from cracking ageing properties, can significantly improve the use of high temperature-resistance conveyor belt
Life-span and avoid operation field air pollution problems inherent.
According to the technical scheme that the present invention is provided, a kind of anti-cracking conveyer belt coating rubber of high temperature resistant, formula rate is by weight
Part meter is as follows：Including 80~120 parts of ethylene propylene diene rubbers, 5~30 parts of PE powder, 2~7 parts of vulcanizing agent DCP, 1~5 part of assistant crosslinking agent
TAIC, 2~30 parts of zinc oxide, 1~5 part of stearic acid, 30~60 parts of reinforcing agents, 5~20 softening agents, 1~5 part of age resistor；
After adding ethylene propylene diene rubber to plasticate in two-roll mill, will be carried out in obtained broken-down rubber input banbury close
Refining；Then open floating weight add supporting material, zinc oxide, stearic acid, softening agent, PE powder, age resistor banburying, through turning refining, slice,
The cooling of normal temperature blower fan is obtained one section of elastomeric compound；Two-stage mixing then is carried out, obtained one section of elastomeric compound, vulcanizing agent DCP is taken and is helped
Kneaded through turning refining in crosslinking agent TAIC input banburies, slice, normal temperature blower fan are cooled down；Vulcanized again, obtained final product product high temperature resistant
Anti- cracking conveyer belt coating rubber.
The PE powder is one or more in LDPE powder, HDPE powder, LLDPE powder.
The reinforcing agent is in carbon black N220, carbon black N234, carbon black N115, carbon black N550, carbon black N330, white carbon
Plant or various.
The softening agent is one or more in petroleum plasticizer, pine tar system plasticizer, coal tar system plasticizer.Tool
Body softening agent is one or more in aromatic naphtha, paraffin oil and coal tar.
The age resistor is the one kind or many in microwax, anti-aging agent RD, antioxidant 4020, antioxidant BLE, antioxidant MB
Kind.
The preparation method of the anti-cracking conveyer belt coating rubber of high temperature resistant, it is characterized in that step is as follows by weight：
(1) plasticate：80~120 parts of ethylene propylene diene rubbers are taken in being plasticated in mill, 2~4mm of its roll spacing, roller temperature control exists
40~50 DEG C, the 10~15min that plasticates obtains broken-down rubber；
(2) knead：Mixing be divided to two sections and carries out, close during broken-down rubber obtained in step (1) is first put into banbury by one section of mixing
1~2min of refining；Then open floating weight add 30~60 portions of reinforcing agents, 2~30 parts of zinc oxide, 5~30 parts of PE powder, 5~20 parts it is soft
Agent, 1~5 part of age resistor and 1~5 part of stearic acid, 3~5min of banburying, dump temperature are controlled at 130~150 DEG C, through turning refining,
One section of elastomeric compound is obtained by 8~12mm of thickness slices, the cooling of normal temperature blower fan, 6~10h is parked；Two-stage mixing then is carried out, system is taken
In the one section of elastomeric compound, 2~7 parts of vulcanizing agent DCP and 1~5 part of assistant crosslinking agent TAIC input banbury that obtain, 3~4min, row are kneaded
Glue temperature control is obtained two-stage mixing glue at 120~130 DEG C through turning refining, by 8~12mm of thickness slices, the cooling of normal temperature blower fan；
(3) vulcanize：The two-stage mixing glue that step (2) is obtained is vulcanized on vulcanizing press, curing temperature is 140
~160 DEG C, sulfide stress is 10~15MPa, and cure time is 20~40min, obtains the anti-cracking conveyer belt of the high temperature resistant and covers
Lid glue.
Beneficial effects of the present invention：The present invention adds PE powder in sizing material, specifically has the following advantages：PE powder can be in high temperature
It is lower to absorb unnecessary free radical, delay ageing of rubber, effectively improve tensile strength and extension at break of the sizing material after high temperature ageing
The conservation rate of rate, makes rubber obtain more preferable heat resistant performance；PE powder is subparticipation vulcanization in sulfidation,
Under high temperature, PE powder is melted so as to play bating effect so that elongation at break is improved rubber at high temperature.
In high temperature-resistance conveyor belt running, the PE powder for having bating effect will not at high temperature volatilize and reduce, and make rubber
The effect for keeping relatively low hardness, rubber cover cracking being prevented so as to play of glue.The anti-cracking conveyer belt of high temperature resistant selected covers
The formula system of lid glue can reach splendid effect, and its actual life had greatly improved more originally.
Specific embodiment
Below by embodiment, the present invention is described further, but not as limitation of the invention.
Embodiment 1
Formula rate is by weight：80 parts of ethylene propylene diene rubbers, 3 parts of vulcanizing agent DCP, 2 parts of assistant crosslinking agent TAIC, 15 parts
Zinc oxide, 1.5 parts of stearic acid, 10 parts of PE powder, 20 parts of carbon black N220,20 parts of carbon black N234,12 parts of paraffin oils (petroleum plasticising
Agent), 1.5 parts of anti-aging agent RDs and 2 parts of antioxidant 4020s.
The preparation method of the anti-cracking conveyer belt coating rubber of high temperature resistant, comprises the following steps that：
(1) plasticate：80 parts of ethylene propylene diene rubbers are plasticated on a mill, roll spacing 3mm, roller temperature is controlled at 40~50 DEG C,
The 15min that plasticates is made broken-down rubber；
(2) knead：Mixing be divided to two sections and carries out, and one section of mixing is first the banburying 1min by broken-down rubber input banbury；Then
Open floating weight and add 15 parts of zinc oxide, 1.5 parts of stearic acid, 10 parts of PE powder, 20 parts of carbon black N220,20 parts of carbon black N234,12 parts of stones
Wax oil, 1.5 parts of anti-aging agent RDs and 2 parts of antioxidant 4020s, banburying 3min, dump temperature control at 130-150 DEG C, through turning refining, by
8~12mm of thickness slices, the cooling of normal temperature blower fan are made one section of elastomeric compound, park 6h；Two-stage mixing be by one section of elastomeric compound, 3 parts
Vulcanizing agent DCP and 2 parts of assistant crosslinking agent TAIC, in input banbury, kneads 3min, and dump temperature is controlled at 120~130 DEG C, warp
Turn refining, obtain final product two-stage mixing glue by 8~12mm of thickness slices, the cooling of normal temperature blower fan；
(3) the two-stage mixing glue that step (2) is obtained is vulcanized on vulcanizing press, curing temperature is 160 DEG C, sulphur
Change pressure is 10MPa, and cure time is 30min, obtains the described anti-cracking conveyer belt coating rubber of high temperature resistant；The thing of the rubber cover
Reason mechanical performance is as shown in table 1.
Embodiment 2
Formula rate is by weight：100 parts of ethylene propylene diene rubbers, 4 parts of vulcanizing agent DCP, 1 part of assistant crosslinking agent TAIC, 20
Part zinc oxide, 2 parts of stearic acid, 15 parts of PE powder (HDPE), 35 parts of carbon black N234,20 parts of carbon black N330,10 parts of paraffin oil (petroleums
Plasticizer), 4 parts of aromatic naphtha (coal tar system plasticizer), 2 parts of anti-aging agent RDs and 2 parts of antioxidant MBs.
The preparation method of the anti-cracking conveyer belt coating rubber of high temperature resistant, comprises the following steps that：
(1) plasticate：100 parts of ethylene propylene diene rubbers are plasticated on a mill, roll spacing 3mm, roller temperature is controlled at 40~50 DEG C,
The 12min that plasticates is made broken-down rubber；
(2) knead：Mixing be divided to two sections and carries out, and one section of mixing is first the banburying 1min by broken-down rubber input banbury；Then
Open floating weight and add 20 parts of zinc oxide, 2 parts of stearic acid, 15 parts of PE powder (LDPE), 35 parts of carbon black N234,20 parts of carbon black N330,10
Part paraffin oil, 4 parts of aromatic naphtha, 2 parts of anti-aging agent RDs and 2 parts of antioxidant MBs, banburying 3min, dump temperature are controlled at 130-150 DEG C,
One section of elastomeric compound is made through turning refining, by 8~12mm of thickness slices, the cooling of normal temperature blower fan, 7h is parked；Two-stage mixing is mixed by one section
Refining glue, 4 parts of vulcanizing agent DCP and 1 part of assistant crosslinking agent TAIC, in input banbury, knead 3min, dump temperature control 120~
130 DEG C, two-stage mixing glue is obtained final product through turning refining, by 8~12mm of thickness slices, the cooling of normal temperature blower fan；
(3) the two-stage mixing glue that step (2) is obtained is vulcanized on vulcanizing press, curing temperature is 155 DEG C, sulphur
Change pressure is 10MPa, and cure time is 35min, obtains the described anti-cracking conveyer belt coating rubber of high temperature resistant；The thing of the rubber cover
Reason mechanical performance is as shown in table 1.
Embodiment 3
Formula rate is by weight：110 parts of ethylene propylene diene rubbers, 4.5 parts of vulcanizing agent DCP, 1.5 parts of assistant crosslinking agents
TAIC, 23 parts of zinc oxide, 1 part of stearic acid, 20 parts of PE powder (LDPE), 45 parts of carbon black N115,8 parts of paraffin oils (petroleum plasticising
Agent), 7 parts of coal tar (coal tar system plasticizer), 2 parts of antioxidant 4020s and 1 part of antioxidant BLE.
The preparation method of the anti-cracking conveyer belt coating rubber of high temperature resistant, comprises the following steps that：
(1) plasticate：110 parts of ethylene propylene diene rubbers are plasticated on a mill, roll spacing 3mm, roller temperature is controlled at 40~50 DEG C,
The 14min that plasticates is made broken-down rubber；
(2) knead：Mixing be divided to two sections and carries out, and one section of mixing is first the banburying 1min by broken-down rubber input banbury；Then
Open floating weight and add 23 parts of zinc oxide, 1 part of stearic acid, 20 parts of PE powder (LDPE), 45 parts of carbon black N115,8 parts of paraffin oils, 7 parts of coals
Tar, 2 parts of antioxidant 4020s and 1 part of antioxidant BLE, banburying 3min, dump temperature are controlled at 130-150 DEG C, through turning refining, by thickness
8~12mm of degree slices, the cooling of normal temperature blower fan are made one section of elastomeric compound, park 7h；Two-stage mixing is by one section of elastomeric compound, 4 parts of sulphur
Agent DCP and 1 part of assistant crosslinking agent TAIC, in input banbury, kneads 4min, and dump temperature is controlled at 120~130 DEG C, through turning over
Refine, obtain final product two-stage mixing glue by 8~12mm of thickness slices, the cooling of normal temperature blower fan；
(3) the two-stage mixing glue that step (2) is obtained is vulcanized on vulcanizing press, curing temperature is 157 DEG C, sulphur
Change pressure is 12MPa, and cure time is 40min, obtains the described anti-cracking conveyer belt coating rubber of high temperature resistant；The thing of the rubber cover
Reason mechanical performance is as shown in table 1.
Comparative example 1：
Formula rate is by weight：105 parts of ethylene propylene diene rubbers, 3.5 parts of vulcanizing agent DCP, 2.5 parts of assistant crosslinking agents
TAIC, 18 parts of zinc oxide, 3 parts of stearic acid, 30 parts of carbon black N330,25 parts of carbon black N220,13 parts of coal tar, 3 parts of anti-aging agent RDs and 1
Part antioxidant BLE.
The preparation method of the anti-cracking conveyer belt coating rubber of high temperature resistant, comprises the following steps that：
(1) plasticate：105 parts of ethylene propylene diene rubbers are plasticated on a mill, roll spacing 3mm, roller temperature is controlled at 40~50 DEG C,
The 12min that plasticates is made broken-down rubber；
(2) knead：Mixing be divided to two sections and carries out, and one section of mixing is first the banburying 1min by broken-down rubber input banbury；Then
Open floating weight add 18 parts of zinc oxide, 3 parts of stearic acid, 30 parts of carbon black N330,25 parts of carbon black N220,13 parts of coal tar, 3 parts it is anti-old
Agent RD and 1 part of antioxidant BLE, banburying 3min, dump temperature control at 130-150 DEG C, through turning refining, by 8~12mm of thickness slices,
The cooling of normal temperature blower fan is made one section of elastomeric compound, parks 8h；Two-stage mixing is by one section of elastomeric compound, 3.5 parts of vulcanizing agent DCP and 2.5
Part assistant crosslinking agent TAIC, in input banbury, kneads 3min, and dump temperature is controlled at 120~130 DEG C, through turning refining, by thickness 8
~12mm slices, the cooling of normal temperature blower fan obtain final product two-stage mixing glue；
(3) the two-stage mixing glue that step (2) is obtained is vulcanized on vulcanizing press, curing temperature is 150 DEG C, sulphur
Change pressure is 10MPa, and cure time is 40min, obtains the described anti-cracking conveyer belt coating rubber of high temperature resistant；The thing of the rubber cover
Reason mechanical performance is as shown in table 1.
Assay method of the invention is according to following standard：
The physical and mechanical properties method of testing of conveyer belt coating rubber is carried out the mechanics of test compound material by ASTMD412 standards
Performance；Stretching experiment uses 6.00mm cut-off knife dumbbell plates wide without exception；High temperature ageing condition is 175 DEG C, 7 days；Covered under high temperature
The physical and mechanical properties of glue, temperature of the measurement is 150 DEG C；Draw speed is 500mm/min, and test temperature is 25 DEG C；Other performances
Test is completed according to ASTM standard.
Table 1：The Performance comparision of the embodiment of the present invention 1~3, comparative example 1
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| Tensile strength/MPa | 13.5 | 13.8 | 14.0 | 13.2 |
| Elongation at break/% | 541 | 523 | 536 | 504 |
| High temperature ageing after-drawing strength retention/% | 84 | 87 | 90 | 75 |
| Conservation rate/the % of elongation at break after high temperature ageing | 81 | 80 | 84 | 72 |
| Hardness after high temperature ageing | 65 | 64 | 65 | 69 |
| Elongation at break/% under high temperature | 260 | 275 | 256 | 230 |
As shown in table 1, by embodiment 1~3, the performance comparison of comparative example 1, it can be seen that add covering for PE powder
Elongation at break is and significantly carries under stretching strength retentivity, elongation at break conservation rate and high temperature after lid glue high temperature ageing
Hardness after height, and high temperature ageing decreases, the characteristic with the anti-cracking of high temperature resistant.
Claims (6)
1. the anti-cracking conveyer belt coating rubber of a kind of high temperature resistant, it is characterized in that formula rate is as follows by weight：Including 80~120
Part ethylene propylene diene rubber, 5~30 parts of PE powder, 2~7 parts of vulcanizing agent DCP, 1~5 part of assistant crosslinking agent TAIC, 2~30 parts of zinc oxide, 1
~5 parts of stearic acid, 30~60 parts of reinforcing agents, 5~20 softening agents, 1~5 part of age resistor；
After adding ethylene propylene diene rubber to plasticate in two-roll mill, banburying is carried out during obtained broken-down rubber is put into banbury；
Then open floating weight and add reinforcing agent, zinc oxide, stearic acid, softening agent, PE powder, age resistor banburying, through turning refining, slice, normal temperature
Blower fan cooling is obtained one section of elastomeric compound；Two-stage mixing then is carried out, obtained one section of elastomeric compound, vulcanizing agent DCP is taken and is helped crosslinking
Kneaded through turning refining in agent TAIC input banburies, slice, normal temperature blower fan are cooled down；Vulcanized again, obtained final product the anti-tortoise of product high temperature resistant
Split conveyer belt coating rubber.
2. the anti-cracking conveyer belt coating rubber of high temperature resistant as claimed in claim 1, it is characterized in that：The PE powder is LDPE powder, HDPE
One or more in powder or LLDPE powder.
3. the anti-cracking conveyer belt coating rubber of high temperature resistant as claimed in claim 1, it is characterized in that：The reinforcing agent be carbon black N220,
One or more in carbon black N234, carbon black N115, carbon black N550, carbon black N330 or white carbon.
4. the anti-cracking conveyer belt coating rubber of high temperature resistant as claimed in claim 1, it is characterized in that：The softening agent is plasticized for petroleum
One or more in agent, pine tar system plasticizer or coal tar system plasticizer；
Specific softening agent is aromatic naphtha, paraffin oil, coal tar.
5. the anti-cracking conveyer belt coating rubber of high temperature resistant as claimed in claim 1, it is characterized in that：The age resistor is microwax, prevents
One or more in old agent RD, antioxidant 4020, antioxidant BLE or antioxidant MB.
6. high temperature resistant as claimed in claim 1 it is anti-cracking conveyer belt coating rubber preparation method, it is characterized in that walking by weight
It is rapid as follows：
（1）Plasticate：80~120 parts of ethylene propylene diene rubbers are taken in being plasticated in mill, 2~4mm of its roll spacing, roller temperature control 40~
50 DEG C, the 10~15min that plasticates obtains broken-down rubber；
（2）Mixing：Mixing is divided to two sections to be carried out, and one section of mixing is first by step（1）In obtained broken-down rubber input banbury, banburying 1
~2min；Then open floating weight and add 30~60 portions of reinforcing agents, 2~30 parts of zinc oxide, 5~30 parts of PE powder, 5~20 parts of softenings
Agent, 1~5 part of age resistor and 1~5 part of stearic acid, 3~5min of banburying, dump temperature control at 130~150 DEG C, through turning refining, by
8~12mm of thickness slices, the cooling of normal temperature blower fan are obtained one section of elastomeric compound, park 6~10h；Two-stage mixing then is carried out, is taken prepared
One section of elastomeric compound, 2~7 parts of vulcanizing agent DCP and 1~5 part of assistant crosslinking agent TAIC input banburies in, knead 3~4min, dumping
Temperature control is obtained two-stage mixing glue at 120~130 DEG C through turning refining, by 8~12mm of thickness slices, the cooling of normal temperature blower fan；
（3）Vulcanization：By step（2）The two-stage mixing glue for obtaining is vulcanized on vulcanizing press, curing temperature be 140~
160 DEG C, sulfide stress is 10~15MPa, and cure time is 20~40min, obtains the anti-cracking conveyer belt covering of the high temperature resistant
Glue.
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| CN201611096287.8A CN106751018A (en) | 2016-12-02 | 2016-12-02 | A kind of anti-cracking conveyer belt coating rubber of high temperature resistant and preparation method thereof |
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| CN107379303A (en) * | 2017-07-27 | 2017-11-24 | 安徽国华新材料有限公司 | A kind of calendering process of rubber |
| CN110527201A (en) * | 2019-09-26 | 2019-12-03 | 西安科技大学 | Without sulphur environment-friendly type high intensity insulated cable material and preparation method thereof |
| CN112677522A (en) * | 2020-12-18 | 2021-04-20 | 中国第一汽车股份有限公司 | Preparation method of high-temperature-resistant low-pressure-variable cooling rubber pipe |
| CN112848428A (en) * | 2020-12-31 | 2021-05-28 | 山东威普斯橡胶股份有限公司 | Conveying belt and preparation method thereof |
| CN113024958A (en) * | 2021-03-16 | 2021-06-25 | 无锡百年通工业输送有限公司 | High-elongation rubber for joints and preparation method thereof |
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| CN114539681A (en) * | 2022-03-01 | 2022-05-27 | 青岛科技大学 | High-wear-resistance ethylene propylene diene monomer covering rubber for high-temperature-resistant conveying belt and preparation method thereof |
| CN115246968A (en) * | 2022-07-15 | 2022-10-28 | 浙江双箭橡胶股份有限公司 | High-temperature-resistant wear-resistant covering rubber for conveyor belt and preparation method thereof |
| CN115304869A (en) * | 2022-07-26 | 2022-11-08 | 高科橡塑工业有限公司 | Ethylene propylene diene monomer rubber compound for high-adhesion and high-tear-resistance rubber roll and preparation method thereof |
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|---|---|---|---|---|
| CN107379303A (en) * | 2017-07-27 | 2017-11-24 | 安徽国华新材料有限公司 | A kind of calendering process of rubber |
| CN110527201A (en) * | 2019-09-26 | 2019-12-03 | 西安科技大学 | Without sulphur environment-friendly type high intensity insulated cable material and preparation method thereof |
| CN112677522A (en) * | 2020-12-18 | 2021-04-20 | 中国第一汽车股份有限公司 | Preparation method of high-temperature-resistant low-pressure-variable cooling rubber pipe |
| CN112848428A (en) * | 2020-12-31 | 2021-05-28 | 山东威普斯橡胶股份有限公司 | Conveying belt and preparation method thereof |
| CN113024958A (en) * | 2021-03-16 | 2021-06-25 | 无锡百年通工业输送有限公司 | High-elongation rubber for joints and preparation method thereof |
| CN113754960A (en) * | 2021-08-23 | 2021-12-07 | 浙江天铁实业股份有限公司 | Oil-resistant and anti-aging rubber boot material and preparation method thereof |
| CN114539681A (en) * | 2022-03-01 | 2022-05-27 | 青岛科技大学 | High-wear-resistance ethylene propylene diene monomer covering rubber for high-temperature-resistant conveying belt and preparation method thereof |
| CN115246968A (en) * | 2022-07-15 | 2022-10-28 | 浙江双箭橡胶股份有限公司 | High-temperature-resistant wear-resistant covering rubber for conveyor belt and preparation method thereof |
| CN115304869A (en) * | 2022-07-26 | 2022-11-08 | 高科橡塑工业有限公司 | Ethylene propylene diene monomer rubber compound for high-adhesion and high-tear-resistance rubber roll and preparation method thereof |
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Application publication date: 20170531 |