CN103881249A - Chlorinated polyethylene rubber material - Google Patents

Chlorinated polyethylene rubber material Download PDF

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Publication number
CN103881249A
CN103881249A CN201210556147.XA CN201210556147A CN103881249A CN 103881249 A CN103881249 A CN 103881249A CN 201210556147 A CN201210556147 A CN 201210556147A CN 103881249 A CN103881249 A CN 103881249A
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Prior art keywords
chlorinated polyethylene
sebific duct
temperature
polyethylene rubber
cooling water
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CN103881249B (en
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张英民
郎需霞
张利军
梁志纯
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Qingdao Gulf Chemical Co ltd
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HAIJING CHEMICAL GROUP CO Ltd QINGDAO
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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
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • 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
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
    • C08L23/286—Chlorinated polyethylene
    • 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—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
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury 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
    • B29B7/74—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92561—Time, e.g. start, termination, duration or interruption
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92761—Mechanical properties
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes

Abstract

The invention relates to a chlorinated polyethylene rubber material, which comprises the following components by weight: 100 parts of rubber-type chlorinated polyethylene, 8-10 parts of magnesium oxide, 3-5 parts of calcium stearate, 0.5-1 parts of 2,2,4-trimethyl-1,2-hydrogenated quinoline polymer, 0.5-1 parts of 4010Na, 40-50 parts of fast extruding furnace black/or white carbon black, 1-2 parts of stearic acid, 10-20 parts of calcium carbonate, 20-25 parts of trioctyltrimellitate, 3-5 parts of adhesive, 2.5-3 parts of 2,4-dimercapto-1,3,4-thiadiazole derivative and 0.2-0.4 parts of N,N-cyclohexylamine-2-benzothiazolesulfenamide. The chlorinated polyethylene rubber has good chemical medicine resistance, aging resistance and good other mechanical properties.

Description

A kind of chlorinated polyethylene rubber material
Technical field
The present invention relates to a kind of chlorinated polyethylene rubber material, concrete, relate to the chlorinatedpolyethylene material for the preparation of sebific duct, more specifically, relate to a kind of chlorinatedpolyethylene material for automobile cooling water pipe.
Background technology
Water-cooled tube normally forms (also having gum rubber tubing product) by interior glue, outer glue and the enhancement layer that is clipped in the middle of each glue, and sizing material used is mostly ethylene propylene diene monomer (EPDM) material, and two-layer braiding enhancement layer uses polyester, polyvinyl alcohol or rayon fiber.Water-cooled tube is that automobile is improved quality and required one of very strict vitals.In vehicle traveling process, heat of engine scatters and disappears too much, increases fuel oil consumption, and the fuel oil being condensate on cylinder wall flows to dilute lubricating oil in crankcase, wearing and tearing aggravation; Engine overheat, it is undesired that aeration quantity reduces burning, starts power decline insufficient lubrication, unstable wear.And automobile cooling water pipe transmission cooling fluid makes motor car engine obtain the cooling of appropriateness, and remain on work in optimum temperature range.Automobile cooling water pipe working temperature is higher, and heat aging property will be got well, simultaneously also very harsh to the requirement of resistance to refrigerant, and general terpolymer EP rubber, silicon rubber or the thermoplastic elastomers of using produced at present, and cost of material is all higher.Along with the development of advancing by leaps and bounds of automotive industry, automobile is by the demand of rubber hose also in continuous increase, and producing high-quality various automobile rubber pipe has become a problem of breaking at the eyebrows and eyelashes.The material of producing automobile-used sebific duct is also constantly upgrading, and market also requires price low, the measured product of matter, and this proposes new problem and challenge just to design and the producer of sebific duct.
Summary of the invention
The object of this invention is to provide a kind of chlorinated polyethylene rubber material, chlorinated polyethylene rubber prepared by this material has good chemical-resistant resistance, ageing resistance, and other mechanical properties are all fine.
Another object of the present invention provides a kind of chlorinated polyethylene rubber material for automobile cooling water pipe.
For realizing first goal of the invention of the present invention, adopt following technical scheme:
A kind of chlorinated polyethylene rubber material, comprising:
Figure BDA00002615612400021
Chlorinated polyethylene rubber is not double bond containing chloride saturated rubber in molecular chain, can be regarded as the terpolymers of ethylene monomer unit, vinyl chloride monomer unit, 1,2 Ethylene Dichloride monomeric unit.The chlorinatedpolyethylene that the preferred rubber-type chlorinated polyethylene of the present invention is elastomeric-type; More preferably, the mooney viscosity of described chlorinatedpolyethylene (ML1+4/125 ℃) value is 65 ± 5; Most preferred, mooney viscosity (ML1+4/125 ℃) value of described chlorinatedpolyethylene is 65 ± 5, tensile strength >=9.5MPa, elongation rate of tensile failure >=1000%, hardness≤58 degree.
The iodine absorption value (g/kg) of described fast extrusion carbon black is 43 ± 6.
Described tackiness agent is RFO-100, and RFO-100 is crude benzene phenol resins (oil) derivative, and this tackiness agent can, in the bounding force increasing between sizing material and braid, can also improve stress at definite elongation and the hardness of sizing material.Its other performance index are as follows: stickiness 2000-50000 centipoise, and proportion is 1.95-1.05, number-average molecular weight is 3000-5000, fugitive constituent (%)≤2.0
In order to adapt to the Working environment of water-cooled tube high temperature, use under the prerequisite of the good chlorinatedpolyethylene of heat-proof aging, adopt resistant to elevated temperatures softening agent trimellitic acid three monooctyl esters to substitute common plasticizers, the heat aging property that improves sizing material can improve the bond strength of rubber and Coppered Steel Wire.Because chlorinatedpolyethylene at high temperature has the phenomenon of the HCl of decomposition for a long time, and HCl can as catalyzer further promote decompose, to this introduce to its have stabilization calcium stearate and can absorb HCl stop decompose magnesium oxide as formula stabilising system.In order to make product reach due hardness, adopt the fast carbon black that extrudes, more smooth while making to extrude, product surface is smooth, meets goods requirement.
Described vulcanizing agent adopts ECHO-A, and ECHO-A is 2,5-dimercapto-1,3,4-thiadiazole derivative, with ECHO-A sulfuration, can improve the fire-retardant of rubber item, high temperature resistant, cold-resistant, resistance to ozone, the performances such as oil resistant and compression set.This vulcanizing agent not only can meet the condition of the exposed sulfuration of water-cooled tube vapor can, and processing safety is very good simultaneously, and properties of rubber is greatly improved.Meanwhile, because chlorinatedpolyethylene has good chemical resistance, in the time using as automobile cooling water pipe sizing material, can reach the patience requirement to cooling fluid.
The salient features of described vulcanizing agent ECHO-A is as follows: fusing point (m, p) is 165-178 ℃, content (assy) >=98.06%, moisture content≤0.30%.
Stearic acid, in the course of processing of rubber, after adding by a certain percentage, is summed up, and has the effect of following four aspects, softening and plastification; As exterior lubricant; Be conducive to the abundant diffusion of carbon black, white carbon black and zinc oxide; Can promote its activity with zinc oxide or basic-type accelerator reaction, or main vulcanization accelerator additive, can play the effect of the second promotion, can make sclerosis accelerate.
Described 4010Na is that chemical name is N-sec.-propyl-N '-diphenyl-para-phenylene diamine.
Above-mentioned chlorinated polyethylene rubber material can be processed into sheet, tubulose or sealing member etc. as required.
Preferably, above-mentioned chlorinated polyethylene rubber material is for automobile cooling water pipe.
Chlorinated polyethylene rubber material is used for the preparation method of cooling water car sebific duct:
(1) get the chlorinated polyethylene rubber having plastified, magnesium oxide, the calcium stearate, 2 of above-mentioned formula ratio, 2,4-trimethylammonium-1,2-dihyaroquinoline polymer, 4010Na, extrude carbon black/or white carbon black, stearic acid, calcium carbonate, trimellitic acid three monooctyl esters and tackiness agent soon, being dropped into temperature is in 55-70 ℃ of Banbury mixer, control temperature glue furnacing temperature and be no more than 85 ℃, under this condition, keep 4 ~ 5min;
(2) by 2 of formula ratio, 5-dimercapto-1,3,4-thiadiazole derivative and N, N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide joins in Banbury mixer, is no more than mixing 2-3min under the condition of 85 ℃ in temperature, obtains sizing material;
(3) sizing material that step (2) obtains is extruded sebific duct by forcing machine, and send into steam vulcanization tank and vulcanize, be that 0.40-0.50MPa, temperature are under the steam of 155 ℃ of left and right at pressure, curing time is 55-65min, obtains cooling water car finished hose.
The described plasticizing method that plastifies chlorinated polyethylene rubber of step (1) comprises: first Banbury mixer temperature is elevated to 40 ~ 50 ℃, then chlorinatedpolyethylene powder is joined in Banbury mixer, heat up, in the time that the temperature of chlorinatedpolyethylene in Banbury mixer reaches 110 ℃ ~ 120 ℃, plasticizing process completes, and obtains the chlorinated polyethylene rubber having plastified.
In above-mentioned condition plasticizing, its fusion time shortens greatly.
The method that in step (3), sizing material is extruded sebific duct by forcing machine comprises hot feeding extrusion method or cold feeding extrusion method.
Wherein, hot feeding extrusion method comprises: first sizing material is preheating to 50-60 ℃, then drops into forcing machine and extrude sebific duct, the body temperature of forcing machine is that 50 ~ 70 ℃, head temperature are 80 ~ 90 ℃.
The sebific duct that chlorinated polyethylene rubber of the present invention is extruded under above-mentioned condition extrusion condition, its smooth surface, and processing safety is good.
Described cold feeding extrusion method comprises: do not need sizing material to carry out preheating, directly drop into forcing machine and extrude sebific duct, spout is 50 ~ 70 ℃ to the temperature of fuselage, and head temperature is 75-85 ℃.
Cooling water car sebific duct prepared by chlorinatedpolyethylene material provided by the invention, in specific formula, adds thiadiazoles vulcanizing agent, be specially 2,5-dimercapto-1,3,4-thiadiazole derivative, sebific duct is had fire-retardant, high temperature resistant, cold-resistant, oil resistance and compression set are little, the advantage that tear strength is high, and this vulcanizing agent itself be nontoxic, do not have odorous.
Compared with the disclosed chlorinated polyethylene rubber material of prior art, chlorinated polyethylene rubber material provided by the invention raw material used is less expensive, after mixing by specific component and proportioning, be applied to cooling water car sebific duct, there is high temperature resistant, anti ageing property, and other performances are also fine, and the cost reducing largely.
Embodiment
Below by specific embodiment, the chlorinated polyethylene rubber that is applied to cooling water car sebific duct is further set forth, but do not limit and summary of the invention of the present invention.
Because rubber-type chlorinated polyethylene is Powdered, need pulverous chlorinated polyethylene rubber to carry out hot mastication filling a prescription before mixing, the chlorinated polyethylene rubber that embodiment uses below all plastifies by the following method: first Banbury mixer temperature is elevated to 40 ~ 50 ℃, to can discharging between 110 ℃ ~ 120 ℃ of material temperature rising.
Chlorinated polyethylene rubber leading indicator used is as follows:
Figure BDA00002615612400041
Embodiment 1
Chlorinated polyethylene rubber material formula:
Figure BDA00002615612400042
Figure BDA00002615612400051
The method of preparing the chlorinated polyethylene rubber that cooling water car sebific duct uses is:
First take chlorinated polyethylene rubber and various auxiliary agent according to formula, first will be except N, in the Banbury mixer that auxiliary agent outside N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and ECHO-A and load weighted chlorinated polyethylene rubber input are 60 ℃, and be no more than 85 ℃ by logical cooling water control glue furnacing temperature, after refining glue 4min, add N, N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and ECHO-A mixing 2min left and right discharging again, in mill, playing 4 ~ 5 triangle bags, can to descend sheet to park for subsequent use.First sizing material is preheating to 55 ℃, 60 ℃ of forcing machine body temperatures, extrude sebific duct under the condition that head temperature is 80 ℃.Sebific duct is sent into steam vulcanization tank and is vulcanized, and under 0.45MPa, the vapor pressure of 150 ℃, can vulcanize at 60min, obtains cooling water car finished hose.
The performance of chlorinated polyethylene rubber hose is as follows:
(1) elongation rate of tensile failure >=300%, tensile strength >=10MPa, hardness 70 ± 5 degree;
(2) carry out heat-proof aging detection (110 ℃, 72h), result is: tensile strength velocity of variation ± 25%, and elongation rate of tensile failure velocity of variation+10 ~-30%, still has higher elongation rate of tensile failure after aging, still more than 200%, changes in hardness≤+ 15;
(3) carry out resistance to cooling fluid condition and detect (sample being put into cooling fluid, at 100 ℃, under the condition of 72h), result is: tensile strength velocity of variation ± 15%, and elongation rate of tensile failure velocity of variation ± 30%, changes in hardness is ± 5;
(4) resistance to ozone detects flawless.
The good rubber of heat-proof aging using at present exceedes 30000 yuan/ton substantially, and rubber-type chlorinated polyethylene price only has 10000 yuan/ton of left and right, has reduced production cost on largely.
Embodiment 2
Figure BDA00002615612400052
Figure BDA00002615612400061
The method of preparing the chlorinated polyethylene rubber that cooling water car sebific duct uses is:
First take chlorinated polyethylene rubber and various auxiliary agent according to formula, first will be except ECHO-A and N, in the Banbury mixer that auxiliary agent outside N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and load weighted chlorinated polyethylene rubber input are 70 ℃, and be no more than 85 ℃ by logical cooling water control glue furnacing temperature, after refining glue 5min, add N, N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and ECHO-A mixing 2min left and right discharging again, in mill, playing 4 ~ 5 triangle bags, can to descend sheet to park for subsequent use.First sizing material drops into forcing machine and extrudes sebific duct, and 70 ℃ of forcing machine body temperatures, extrude sebific duct under the condition that head temperature is 75 ℃.Sebific duct is sent into steam vulcanization tank and is vulcanized, and under 0.50MPa, the vapor pressure of 145 ℃, can vulcanize at 60min, and the sebific duct vulcanizating is cooling water car finished hose.
Embodiment 3
Figure BDA00002615612400062
The method of preparing the chlorinated polyethylene rubber that cooling water car sebific duct uses is:
First take chlorinated polyethylene rubber and various auxiliary agent according to formula, first will be except ECHO-A and N, in the Banbury mixer that auxiliary agent outside N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and load weighted chlorinated polyethylene rubber input are 55 ℃, and be no more than 85 ℃ by logical cooling water control glue furnacing temperature, after refining glue 4min, add N, N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide and ECHO-A mixing 2min left and right discharging again, in mill, playing 4 ~ 5 triangle bags, can to descend sheet to park for subsequent use.First sizing material is preheating to 55 ℃, 50 ℃ of forcing machine body temperatures, extrude sebific duct under the condition that head temperature is 90 ℃.Sebific duct is sent into steam vulcanization tank and is vulcanized, and under 0.45MPa, the vapor pressure of 150 ℃, can vulcanize at 60min, and the sebific duct vulcanizating is cooling water car finished hose.
Experimental example 1
The embodiment of the present invention 1 is product 1; Product 2 is: other component reference examples 1, vulcanizing agent Thiourea NA-22; Product 3 is: other component reference examples 1, vulcanizing agent is peroxide DCP.
Figure BDA00002615612400071
Contrasting each vulcanizing agent can find out, uses ECHO-A no matter from product index and resistance to medium, and all good than other vulcanizing agents, cross-linked rubber smell is very little simultaneously.
Experimental example 2
This experimental example is with regard to the formula of embodiment 1, and other components do not change, and changes the consumption of vulcanizing agent, its performance variation:
The impact of table 2 vulcanizing agent consumption on product performance
Figure BDA00002615612400072
Figure BDA00002615612400081
From different vulcanizing agent consumption contrast situations, the problem that usage quantity all can cause sizing material over cure or owe sulphur too much or very little, can meet the demands product index and resistance to medium.

Claims (9)

1. a chlorinated polyethylene rubber material, comprising:
Figure FDA00002615612300011
2. chlorinated polyethylene rubber composition according to claim 1, is characterized in that, described tackiness agent is RFO-100, and described RFO-100 is crude benzene phenol resins (oil) derivative.
3. chlorinated polyethylene rubber composition according to claim 1, is characterized in that, mooney viscosity (ML1+4/125 ℃) value of described chlorinatedpolyethylene is 65 ± 5.
4. a cooling water car sebific duct of preparing with the chlorinated polyethylene rubber material described in right 1-3.
5. cooling water car sebific duct according to claim 4, is characterized in that, chlorinated polyethylene rubber material is used for the preparation method of cooling water car sebific duct:
(1) get the chlorinated polyethylene rubber having plastified, magnesium oxide, the calcium stearate, 2 of above-mentioned formula ratio, 2,4-trimethylammonium-1,2-dihyaroquinoline polymer, 4010Na, extrude carbon black/or white carbon black, stearic acid, calcium carbonate, trimellitic acid three monooctyl esters and tackiness agent soon, being dropped into temperature is in 55-70 ℃ of Banbury mixer, control temperature glue furnacing temperature and be no more than 85 ℃, under this condition, keep 4 ~ 5min;
(2) by 2 of formula ratio, 5-dimercapto-1,3,4-thiadiazole derivative and N, N-dicyclohexyl amine-2-[4-morpholinodithio sulphenamide joins in Banbury mixer, is no more than mixing 2-3min under the condition of 85 ℃ in temperature, obtains sizing material;
(3) sizing material that step (2) obtains is extruded sebific duct by forcing machine, and send into steam vulcanization tank and vulcanize, be that 0.40-0.50MPa, temperature are that under the steam of 145-155 ℃, curing time is 55-65min, obtains cooling water car finished hose at pressure.
6. cooling water car sebific duct according to claim 5, it is characterized in that, the described plasticizing method that plastifies chlorinated polyethylene rubber of step (1) comprises: first Banbury mixer temperature is elevated to 40 ~ 50 ℃, then chlorinatedpolyethylene powder is joined in Banbury mixer, heat up, in the time that the temperature of chlorinatedpolyethylene in Banbury mixer reaches 110 ℃ ~ 120 ℃, plasticizing process completes, and obtains the chlorinated polyethylene rubber having plastified.
7. according to the cooling water car sebific duct described in claim 5 or 6, it is characterized in that, the method that in step (3), sizing material is extruded sebific duct by forcing machine comprises hot feeding extrusion method or cold feeding extrusion method.
8. cooling water car sebific duct according to claim 7, is characterized in that, hot feeding extrusion method comprises: first sizing material is preheating to 50-60 ℃, then drops into forcing machine and extrude sebific duct, the body temperature of forcing machine is that 50 ~ 70 ℃, head temperature are 80 ~ 90 ℃.
9. cooling water car sebific duct according to claim 7, it is characterized in that, described cold feeding extrusion method comprises: do not need sizing material to carry out preheating, directly drop into forcing machine and extrude sebific duct, spout is 50 ~ 70 ℃ to the temperature of fuselage, and head temperature is 75-85 ℃.
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CN111363261A (en) * 2020-04-27 2020-07-03 宝胜科技创新股份有限公司 High-adhesiveness chlorinated polyethylene rubber semiconductive cable inner sheath material and preparation method thereof
CN111363261B (en) * 2020-04-27 2023-10-20 宝胜科技创新股份有限公司 High-adhesion chlorinated polyethylene rubber semiconductive cable inner sheath material and preparation method thereof

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