CN105385046B - Underground pipe gallery sealing article formula - Google Patents
Underground pipe gallery sealing article formula Download PDFInfo
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- CN105385046B CN105385046B CN201510826378.1A CN201510826378A CN105385046B CN 105385046 B CN105385046 B CN 105385046B CN 201510826378 A CN201510826378 A CN 201510826378A CN 105385046 B CN105385046 B CN 105385046B
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- parts
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- pipe gallery
- mixer
- underground pipe
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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
- 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
-
- 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
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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 discloses a kind of underground pipe gallery sealing article formula, belong to rubber compounding field, its PHR is：EPDM 70, polytetrafluoroethylene powder 10, haloflex 20, solid coumarone resin 5, high viscosity paraffin oil 20, zinc oxide 8, stearic acid SA 8, polyethylene glycol 0.3, magnesia 0.5, white carbon 10, carbon black N330 35, carbon black N550 20, calcium carbonate 30, microcrystalline wax 2, antioxidant 1040NA 1.5, anti-aging agent RD 1, accelerating agent TAIC 1.5, vulcanizing agent double 25 2.5, sulphur 0.4；The present invention is using EPDM rubber+polytetrafluoroethylene powder+haloflex as material of main part, at the same time be aided with softening agent, reinforcing agent, filler, antioxidant, activating agent, as auxiliary material, formula after compound meets the requirement of long-life, particularly well meets the requirement of 110 year long-life of underground pipe gallery.
Description
Technical field
It is specially a kind of underground pipe gallery sealing article formula the invention belongs to be formulated in field of rubber materials.
Background technology
Pipe gallery is also known as common trench, it is to implement unified planning, design, construction and maintenance, is built in Urban Underground and is used for
Lay the public utility of municipal public use pipeline.Be Urban Underground be used for concentrate laying electric power, communication, radio and television, to
The public tunnel of the municipal pipelines such as water, draining, heating power, combustion gas.In developed country, pipe gallery has existed for generation more than one
Record.Japan starts to build underground pipe gallery with nineteen twenty-six, have passed through joint development construction for many years, and many undergrounds are comprehensive now
Close piping lane and be unified into network, Japan is that current pipe gallery utilization rate is most wide, one of technology country the most ripe.In China
Only a few city such as Beijing, Shanghai, Shenzhen, Suzhou, Shenyang has pipe gallery.Recent years, the big of China are pushed
It is serious to alleviate current domestic city waterlogging into the construction of pipe gallery, prevent once the present situation flooded of raining heavily.
Pipe gallery can be divided into the structures such as cast-in-place mixed mud structure and precast assembly structure, but no matter which kind of structure is required for
Using sealing means of the rubber seal products as interface.In the prior art, the sealing article for underground city piping lane is successive
Expose and meet the problems such as aqueous corrosion, short life, the poor, poor sealing of anti-corrosion ability.Underground pipe gallery is embedded in underground, design
Service life is not less than 100 years, and sealing article is not easy to replace, and replacement sealing article is quite inconvenient after there is leakage, and therefore, there is an urgent need for exploitation
A kind of new material formula, for the sealing article of underground pipe gallery, to overcome pipe gallery sealing system in the prior art
The deficiency of product.
The content of the invention
The present invention is for overcome the deficiencies in the prior art, it is proposed that a kind of Novel underground pipe gallery sealing article formula,
The formula considers that the multinomial surrounding medium such as anti-corrosion, round-the-clock anti-aging, resistance to sewage/rainwater/recycled water, mould proof is old to product
Change the influence of life performance, design service life is no less than 110 years, has that corrosion resistant ability is strong, the remarkable advantage of service life length.
Inventive formulation design is as follows：
Material of main part：EPDM rubber+polytetrafluoroethylene powder+haloflex.
EPDM rubber has excellent ageing-resistant performance, because EPDM rubber main chain is made of chemically stable saturated hydrocarbons,
Only contain unsaturated double-bond in the side chain, therefore the ageing-resistant performance such as its resistance to ozone, heat-resisting, weather-proof is excellent；
Polytetrafluoroethylene powder, has excellent chemical stability, corrosion resistance, excellent heatproof is corrosion-resistant in the world today
One of performance optimal material, it is best in all rubber plastics to have its ageing-resistant performance.
Haloflex, it is a kind of excellent compatilizer, and a kind of saturated rubber, have outstanding heat oxygen aging resistance,
Ozone aging, acid and alkali-resistance, chemicals performance, while there is flame retarding function, this characteristic should Urban Underground pipe gallery
The sprawling after fire generation can be effectively prevented in, effectively raises security performance.
This 3 kinds of combinations of materials above：The optimum proportioning of rubber plastic has been used, has reached a kind of optimal work(of science
Energy.EPDM providers act on, and polytetrafluoroethylene powder provides the service life that other materials are unreachable to, haloflex,
Excellent compatilizer, make its be formulated in all material compatibility be improved, while have other General Purpose Rubbers without resistance
Fire function.
Auxiliary material：Softening agent+reinforcing agent+filler+antioxidant+activating agent.
（1）Softening agent：
500# paraffin oils：The use of oil can have a great influence intensity and elasticity, but appropriate use can increase mixing
Craftsmanship, it is helpful to carbon black dispersion.Due to containing paraffinic base, there is good compatibility with EPDM rubber, can effectively protect
Barrier product long-time service is not precipitated or extracts out, and effectively ensured product persistently uses function.
Solid coumarone resin：In order to preferably ensure excellent service life, it is equipped with solid coumarone resin and replaces portion
Divide paraffin oil, it is more efficient to ensure that oil is not precipitated or extracts out in long-term use.At the same time solid coumarone resin to EPDM also
There are increase tack, increase tensile strength, the function of the compatibility of the various materials of increase, be the service life of 110 years of product
Provide guarantee.
（2）Reinforcing agent：Select half reinforcement N550+ white carbons of high abrasion furnace black N330+.
Main body is using N330 as main reinforcing agent, and because EPDM is non-reinforced rubber, self-strength is very low, it is necessary to be mended
Corresponding use demand is can be only achieved after strong, thus N330 has the excellent main supporting material of reinforcing and wearability, at the same time
The collaboration reinforcement of N550 semi-reinforcing hydrocarbon blacks is equipped with, while N550 has good mobility, has to the production technology of product very big
Effect；The increase of white carbon provides the product for being formulated production comprehensive to be formulated the good tear resistance of the product of production
The excellent physical property closed.White carbon is also good ultra-violet absorber at the same time, to the anti-aging and excellent longevity of product
Life is made that contribution.
（3）Filler：The use of packing material is mainly the mobility for increasing formula in production, ensures production technology
Property, while be also a kind of means for reducing formulation cost.Pipe gallery is contacted with water for a long time due to being used in underground.So choosing
Packing material is used as by the use of hydrophobic precipitated calcium carbonate.
（4）Antioxidant：Microwax+antioxidant 4010NA+anti-aging agent RD
EPDM materials have excellent ageing properties in itself, need not add preventing aging system under normal circumstances；But originally match somebody with somebody
Square design service life reaches 110 years, this just needs special proportioning to meet.In view of resistance to ag(e)ing and service life
Factor, has selected physical antioxidant and chemical antiager to cooperate with and use.Microwax forms a kind of film after product use, effectively
Completely cut off the external world oxygen, mould, etc. material, it is ensured that product from external substance destroy.The cooperation of antioxidant 4010NA+RD
There is ozone-resistant, thermo-oxidative ageing, help is provided for product whole service life.
（5）Activating agent:Zinc oxide+stearic acid+polyethylene glycol+magnesia
Generating network being after zinc oxide+stearic acid preheating promotes vulcanizing agent to decompose, and promotes the vulcanization of rubber, polyethylene glycol is
Formula provides compensation vulcanization, he can control the generation of the ozone-induced cracking of product at the same time, also carry out acid to the white carbon in formula
Alkali integrates, to ensure the acid-base balance being entirely formulated, it is ensured that production technology is smooth.The use of magnesia is mainly to material of main part
In haloflex preheating release hydrogen chloride absorbed, effectively ensured the stability of product, simultaneous oxidation magnesium
Good resistance to hot function is provided using the product after vulcanizing to formula, there is provided excellent compression set function.
Vulcanizing system of the present invention, it is contemplated that the cross-bond that is formed during vulcanization and anti-aging property relation pass in the following order
Subtract：Ionic bond<Polysulfide bond<Cystine linkage<Monosulfidic bond<Carbon-carbon bond, while in view of formula craftsmanship in production and physical
Can, the present invention is designed as the crosslinking of carbon-carbon bond, mainly ensures its excellent anti-aging function.A small amount of sulphur is equipped with the same time,
The time is burnt because sulphur can effectively extend glue in peroxide vulcanizing system, guarantee is provided for sulfuration process.The vulcanization
System and ensure that excellent anti-aging property has good processing performance.
The present invention is achieved through the following technical solutions：Underground pipe gallery sealing article formula, it is characterised in that should
Each component and PHR contents are as follows in formula：
EPDM 70；
Polytetrafluoroethylene powder 10；
Haloflex 20；
Solid coumarone resin 5；
High viscosity paraffin oil 20；
Zinc oxide 8；
Stearic acid SA 8；
Polyethylene glycol PEG 4,000 0.3；
Magnesia 0.5；
White carbon 10；
Carbon black N330 35；
Carbon black N550 20；
Calcium carbonate 30；
Microcrystalline wax 2；
Antioxidant 1040NA 1.5；
Anti-aging agent RD 1；
TAIC 1.5；
Vulcanizing agent double 25 2.5；
Sulphur 0.4.
Further, the high viscosity paraffin oil is 500# paraffin oils.
Further, the zinc oxide is the zinc oxide that purity is more than 99.7%.
Beneficial effect of the present invention：The present invention is using EPDM rubber+polytetrafluoroethylene powder+haloflex as main body material
Material, while it is aided with softening agent（500# paraffin oils, solid coumarone resin）, reinforcing agent（N330, N550, white carbon）, filler
（Calcium carbonate）, antioxidant（Microwax, antioxidant 4010NA, anti-aging agent RD）, activating agent（Zinc oxide, stearic acid, polyethylene glycol,
Magnesia）As auxiliary material, the formula after compound meets the requirement of long-life, particularly well meets underground
The requirement of 110 year long-life of pipe gallery.
Embodiment
Following non-limiting examples are used to illustrate the present invention：
350 70 South Korea Jin Hu of EPDM KEP；
20 Shenyang sky Xiangs of polytetrafluoroethylene powder PTFE；
The black auspicious chemical industry of chin or cheek in 10 Zibo of haloflex；
5 Nanjing army liter of solid coumarone resin；
20 Hengshui Sheng Kang Chemical Co., Ltd.s of high viscosity paraffin oil；
Color zinc product in 8 Liuzhou of zinc oxide；
8 Lu dayizations of stearic acid SA；
4,000 0.3 Jiangsu Hai'an petrochemical industry of polyethylene glycol PEG；
0.5 Hebei of magnesia, three sphering work；
It is white in 10 Zi Gong of white carbon；
Rubber Zi Gong carbon black research institute in carbon black N330 35；
Rubber Zi Gong carbon black research institute in carbon black N550 20；
30 Mianzhu distance of travel of roc fine chemistry industry of calcium carbonate；
2 Nanyang, henan paraffin Fine Chemical Works of microcrystalline wax；
1.5 sinopec Nanjing of antioxidant 4040NA chemistry；
1 Huangyan, Zhejiang East Zhejiang province rubber chemicals Co., Ltd of anti-aging agent RD；
1.5 Yantai Heng Nuo Chemical Co., Ltd.s of TAIC；
The double 25 2.5 Yantai Heng Nuo Chemical Co., Ltd.s of vulcanizing agent；
0.4 petrochina Southwest Oil branch company Chongqing natural gas purification head factory of sulphur.
Embodiment one：
According to above-mentioned formula rate, finished product is made through following technique：
（1）EPDM+ polytetrafluoroethylene (PTFE)+haloflex：80-120 °C of mixer, plasticates 3-8 minutes；
（2）Put into solid coumarone resin：100-120 °C of mixer, is kneaded 2-4 minutes；
（3）Put into magnesia, stearic acid, polyethylene glycol, antioxidant 4010NA, anti-aging agent RD, paraffin：Mixer 100-
120 °C, it is kneaded 2-4 minutes；
（4）Input white carbon, carbon black, precipitated calcium carbonate, 100-120 °C of paraffin oil mixer, mixing 6-10 minutes, then
Open banburying chamber's pressurization lid and turn over glue 1 time, put down pressurization lid mixing 2-5 minutes；
（5）Pour out the good sizing material of mixing, on a mill pull out 2-5mm thin slices, park cooling 24 it is small when more than；
（6）Open mill：Rubber compound after cooling will be parked on a mill after heat refining, suitable roll spacing is transferred to, from roller
S Cosans, accelerating agent TAIC are slowly poured into directly over axis, vulcanizer double 25 is kneaded, and addition is slowly to move left and right
It is dynamic, do not allow to fly upward, temperature control is at 60-85 DEG C；
（6）Refining：After complete all material to be added, turned refining with 8 skill in using a kitchen knife in cookery or so broaching tool, be kneaded added material uniform.Then
Roll spacing 1MM is adjusted, each 3 times of clot of packing after heat refining, then thickness slice on demand, is then put on louver vehicle and cools down, stand-by；
（7）Then suitable vulcanizer is selected according to the shapes and sizes of product, temperature is generally 170-180 DEG C；By production
The actual demand of product tears material open, weighs, puts into die cavity, upper pressure sulfidization molding.
Claims (4)
1. a kind of underground pipe gallery sealing article, it is characterised in that be made according to following processing steps：
(1), 70 parts of EPDM, 10 parts of polytetrafluoroethylene powder, 20 parts of haloflex, 5 parts of solid coumarone resin, high viscosity are chosen
20 parts of paraffin oil, 8 parts of zinc oxide, 8 parts of stearic acid SA, 4,000 0.3 parts of polyethylene glycol PEG, 0.5 part of magnesia, white carbon 10
Part, 35 parts of carbon black N330,20 parts of carbon black N550,30 parts of calcium carbonate, 2 parts of microcrystalline wax, 1.5 parts of antioxidant 1040NA, prevent always
1 part of agent RD, 1.5 parts of TAIC, vulcanizing agent double 25 2.5 parts, 0.4 part of sulphur；
(2) mixer, 80-120 DEG C of mixer design temperature, modeling are put into after, EPDM+ polytetrafluoroethylene (PTFE)+haloflex is mixed
Refining 3-8 minutes；
(3), solid coumarone resin is put into mixer, 100-120 DEG C of mixer design temperature, is kneaded 2-4 minutes；
(4), magnesia, stearic acid, polyethylene glycol, antioxidant 4010NA, anti-aging agent RD, paraffin are put into mixer, mixer
100-120 DEG C of design temperature, is kneaded 2-4 minutes；
(5), white carbon, carbon black, precipitated calcium carbonate, paraffin oil are put into mixer, 100-120 DEG C of mixer design temperature, is mixed
Refining 6-10 minutes, then opens banburying chamber's pressurization lid and turns over glue 1 time, put down pressurization lid mixing 2-5 minutes again；
(6), pour out the good sizing material of mixing, on a mill pull out 2-5mm thin slices, park cooling 24 it is small when more than；
(7) rubber compound after cooling, will be parked on a mill after heat refining, be transferred to suitable roll spacing, from cylinder axis directly over it is slow
Slow to pour into S Cosans, accelerating agent TAIC, vulcanizing agent double 25 is kneaded；
(8), after complete all material to be added, turned refining with 8 skill in using a kitchen knife in cookery or so broaching tool, be kneaded added material uniform；Then roll spacing 1MM is adjusted,
Each 3 times of packing clot after heat refining, then thickness slice on demand, is then put on louver vehicle and cools down, stand-by；
(9) and then according to the shapes and sizes of product suitable vulcanizer is selected, temperature is set as 170-180 DEG C；By product
Actual demand tear material open, weigh, put into die cavity, upper pressure sulfidization molding.
A kind of 2. underground pipe gallery sealing article according to claim 1, it is characterised in that the high viscosity paraffin
Oil is 500# paraffin oils.
3. underground pipe gallery sealing article according to claim 1, it is characterised in that the zinc oxide is that purity is
More than 99.7% zinc oxide.
4. underground pipe gallery sealing article according to claim 1, it is characterised in that S sulphur is added in step (7)
Powder, accelerating agent TAIC, vulcanizing agent it is double two or five when need to slowly move left and right, temperature control is at 60-85 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826378.1A CN105385046B (en) | 2015-11-25 | 2015-11-25 | Underground pipe gallery sealing article formula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826378.1A CN105385046B (en) | 2015-11-25 | 2015-11-25 | Underground pipe gallery sealing article formula |
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| CN105385046A CN105385046A (en) | 2016-03-09 |
| CN105385046B true CN105385046B (en) | 2018-04-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880553A (en) * | 2017-12-26 | 2018-04-06 | 太仓冠联高分子材料有限公司 | A kind of pipe gallery sealing strip sizing material |
| CN108342022A (en) * | 2018-01-24 | 2018-07-31 | 亚新科噪声与振动技术（安徽）有限公司 | A kind of control valve high-performance self-lubricating rubber material and preparation method thereof |
| CN108047576A (en) * | 2018-01-25 | 2018-05-18 | 东莞市杜特橡胶制品有限公司 | A kind of high abrasion EPDM dynamic sealing materials |
| CN111087706A (en) * | 2019-09-05 | 2020-05-01 | 威固技术（安徽）有限公司 | Formula and preparation method of high-strength and high-low temperature-resistant ethylene propylene diene monomer lifting lug |
| CN114292472A (en) * | 2022-01-14 | 2022-04-08 | 四川佳世特橡胶有限公司 | Formula of hot die butt joint high-cohesiveness vulcanized rubber sealing strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102276931A (en) * | 2011-06-30 | 2011-12-14 | 江苏江华阀业有限公司 | Strong-wear-resistant corrosion-resistant rubber composition for valve |
| CN102816393A (en) * | 2012-07-28 | 2012-12-12 | 安徽弘博电缆有限公司 | Low-smoke low-halogen flame-retardant crosslinked polyolefin insulated cable material and preparation method thereof |
| CN104312027A (en) * | 2014-11-07 | 2015-01-28 | 镇江中佳电器有限公司 | Ultrahigh-insulation rubber cable material and preparation method thereof |
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