CN106279472A - A kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose and production technology thereof - Google Patents
A kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose and production technology thereof Download PDFInfo
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- CN106279472A CN106279472A CN201610673045.4A CN201610673045A CN106279472A CN 106279472 A CN106279472 A CN 106279472A CN 201610673045 A CN201610673045 A CN 201610673045A CN 106279472 A CN106279472 A CN 106279472A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
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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
- C08L23/26—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
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
The invention discloses a kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose and production technology thereof, described production technology comprises the following steps: A. stirs: adds water in reactor, is stirred after adding initiator, dispersant, emulsifying agent in water；B. chlorine is led to: in reactor, add polyethylene powder, be passed through steam afterwards and heat up, while heating up, be passed through chlorine；C. washing: after logical chlorine stirring terminates, deacidification will be carried out in the feed liquid discharge in reactor to deacidification still；D. neutralize: the feed liquid after washing is added Caustic soda and is neutralized；E. it is dried: the feed liquid after neutralizing is dried, and obtains material after drying；F. pulverize: dried material is pulverized, cross screen cloth, prepare chlorinated polyethylene.The chlorinated polyethylene that this technique produces due in its molecule without unsaturated bond, the then structure in linear random, thus there is the advantages such as heat-resisting, oil resistant, resistance to ozone, ageing-resistant, fire-retardant, chemical-resistant resistance, good insulating.
Description
Technical field
The present invention relates to the processing technique field of a kind of automobile-used sebific duct raw material, especially relate to a kind of automobile-used oil-resisting rubber hose special
By chlorinated polyethylene and production technology thereof.
Background technology
Chlorinated polyethylene is through chlorination modified and prepared high molecular synthetic material by polyethylene.Different by chlorinty, can
It is divided into plasticity chlorinated polyethylene (chlorinty 15%), elastic chlorinated polyethylene (chlorinty 16%-20%), elastomer chlorinated polyethylene
(chlorinty 25%-50%), hard chlorinated polyethylene (chlorinty 51%-60%).According to its residual crystallinity and other characteristic, can
It is divided into and moulds remodeling chlorinated polyethylene (CPE) and rubber-type chlorinated polyethylene (CM).CPE contains a certain amount of residual knot in the structure
Crystalline substance, CM is substantially free of residual crystallization.
Automobile-used sebific duct is different from general service hose, it is desirable to oil resistant, high temperature resistant.General CPE and CM can not meet its requirement, main
Not passing a test if soaking at oil resistant, reducing the oil resistant shape of automobile-used sebific duct, shortening the service life of automobile-used sebific duct.
Summary of the invention
The present invention is directed to existing mould remodeling chlorinated polyethylene (CPE) and rubber-type chlorinated polyethylene (CM) process automobile-used
The oil resistance that oil-resisting rubber hose exists is the highest, capability and performance is the best, service life is short, improve the problem of cost, it is provided that a kind of
Oil resistance height, capability and performance height, length in service life, the special chlorinated polyethylene of automobile-used oil-resisting rubber hose reducing cost and life thereof
Production. art.
The present invention solves its technical problem and is adopted the technical scheme that:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add water in reactor, be stirred after adding initiator, dispersant, emulsifying agent in water；
B. chlorine is led to: in reactor, add polyethylene powder, be passed through steam afterwards and heat up, while heating up, be passed through chlorine
Gas；
C. washing: after logical chlorine stirring terminates, deacidification will be carried out in the feed liquid discharge in reactor to deacidification still；
D. neutralize: the feed liquid after washing is added Caustic soda and is neutralized；
E. it is dried: the feed liquid after neutralizing is dried, and obtains material after drying；
F. pulverize: dried material is pulverized, cross screen cloth, prepare chlorinated polyethylene；
Wherein, relative to the water of 8000L, the consumption of described initiator is 2-3kg, and the consumption of described dispersant is 20-23kg, institute
The consumption stating emulsifying agent is 4-6kg, and the consumption of described polyethylene powder is 1100-1120kg, and described chlorine consumption is 1050-
1150kg, described amount of caustic soda is 40-50kg.
Present invention also offers a kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose, this chlorinated polyethylene is by above-mentioned side
Method produces and prepares.
Beneficial effect: this technique changes logical chlorine dose in producing in chlorination reaction operation, can improve the reaction speed of chlorine
Rate, it is also possible to strengthen the quality of chlorinated polyethylene finished product, the chlorinated polyethylene that this technique produces is not owing to containing insatiable hunger in its molecule
And key, the then structure in linear random, thus there is heat-resisting, oil resistant, resistance to ozone, ageing-resistant, fire-retardant, chemical-resistant resistance, insulating properties
The advantage such as good, for processing cart oil-resisting rubber hose, not only increases the comprehensive quality performance of automobile-used oil-resisting rubber hose, also extends car
With the service life of oil resistant drillmaster, reducing cost, meanwhile, chlorinated polyethylene is alone or blended, graft copolymerization, can be widely
It is applied to the aspects such as resin modified, rubber processing, coating, binding agent, engineering plastics, has a extensive future.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides the production technology of a kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described
Production technology comprise the following steps:
A. stirring: add water in reactor, be stirred after adding initiator, dispersant, emulsifying agent in water；
B. chlorine is led to: in reactor, add polyethylene powder, be passed through steam afterwards and heat up, while heating up, be passed through chlorine
Gas；
C. washing: after logical chlorine stirring terminates, deacidification will be carried out in the feed liquid discharge in reactor to deacidification still；
D. neutralize: the feed liquid after washing is added Caustic soda and is neutralized；
E. it is dried: the feed liquid after neutralizing is dried, and obtains material after drying；
F. pulverize: dried material is pulverized, cross screen cloth, prepare chlorinated polyethylene；
Wherein, relative to the water of 8000L, the consumption of described initiator is 2-3kg, and the consumption of described dispersant is 20-23kg, institute
The consumption stating emulsifying agent is 4-6kg, and the consumption of described polyethylene powder is 1100-1120kg, and described chlorine consumption is 1050-
1150kg, described amount of caustic soda is 40-50kg.
In step, described initiator is benzoyl peroxide, and described dispersant is Sodium methacrylate. and hydrophobicity two
Silicon oxide, described emulsifying agent is polyoxyethylene alcohol；Preferably, the consumption of described Sodium methacrylate. is 19-21kg, described hydrophobic
The consumption of property silicon dioxide is 1-2kg；It is further preferred that described mixing speed controls to be 130-140r/min, during stirring
Between control as 30-40min.
In stepb, described in be passed through chlorine use be passed through for three times, wherein, feed temperature rises to start to be passed through chlorine when 78 DEG C
Gas, is passed through 390-410kg chlorine in 78-110 DEG C of interval, is passed through 280-320kg chlorine in 110-132 DEG C of interval, 133 DEG C of perseverances
Thermophase is passed through 390-410kg chlorine；Preferably, carry out feed liquid is stirred during being passed through chlorine；Further preferably
Ground, described mixing speed controls as 130-140r/min, continuation stirring 30-40min after chlorine is passed through end.
In step C, described blowdown pressure is negative pressure 0.2-0.25MPA, is cooled to 73-76 DEG C；Preferably, described material
During loss of thick fluid acid, mixing speed controls at 110-125r/min, and temperature controls as 60-65 DEG C；It is further preferred that described material
PH value after loss of thick fluid acid is 4-4.5.
In step D, described employing adds to feed liquid for 3-5 time, and carries out surveying pH value after adding Caustic soda every time；Preferably
Ground, described N-process mixing speed controls at 110-125r/min, and temperature controls as 80-85 DEG C, and by whole N-process
Time controls as 1.5-2h；It is further preferred that in described feed liquid and after pH value be 7.2-7.5.
In step E, described dry employing centrifugal drying；Preferably, described baking temperature controls as 110-120 DEG C；Enter
One step preferably, water content≤0.8% of described dried material.
In step F, described screening uses the screening of 20-40 mesh.
Present invention also offers a kind of special chlorinated polyethylene of automobile-used oil-resisting rubber hose, this chlorinated polyethylene is by above-mentioned side
Method produces and prepares.
Hereinafter will be described the present invention by embodiment.
Embodiment 1:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add 8000L water in reactor, add the methacrylic acid of the benzoyl peroxide of 2kg, 20kg in water
Sodium, the hydrophobic silica of 1kg, the polyoxyethylene alcohol of 5kg, control mixing speed is 133r/min, and mixing time control is
30min；
B. chlorine is led to: in reactor, add 1100kg polyethylene powder, be passed through steam afterwards and heat up, rise at feed temperature
Start to be passed through chlorine when 78 DEG C, be passed through 400kg chlorine in 78-110 DEG C of interval, be passed through 300kg chlorine in 110-132 DEG C of interval,
It is passed through 400kg chlorine 133 DEG C of constant temperature stages, carries out feed liquid is stirred during being passed through chlorine, control mixing speed
For 133r/min, after chlorine is passed through end, continue stirring 30min；
C. washing: after logical chlorine stirring terminates, by near for reactor negative pressure 0.2MPA, after being cooled to 75 DEG C, discharge enters to deacidification still
Row deacidification, deacidification mixing speed is set to 120r/min, and it is 60 DEG C that temperature controls, and deacidification to pH value is 4；
D. neutralize: the feed liquid after washing is warming up to 80 DEG C, the Caustic soda that total amount is 50kg is divided 4 times and add in feed liquid, stirring speed
Degree controls to be 120r/min, adds a Caustic soda and surveys a pH value, when pH value is 7.5, stops stirring, whole N-process time
Control as 2h；
E. it is dried: the feed liquid after neutralizing is dried on the drying bed of 110 DEG C, controls water content≤0.8% of material；
F. pulverize: dried material is pulverized, cross the screen cloth of 20 mesh, prepare chlorinated polyethylene a1.
Embodiment 2:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add 8000L water in reactor, add the metering system of the benzoyl peroxide of 1.5kg, 21kg in water
Acid sodium, the hydrophobic silica of 0.8kg, the polyoxyethylene alcohol of 4.7kg, control mixing speed is 135r/min, mixing time
Control as 40min；
B. chlorine is led to: in reactor, add 1120kg polyethylene powder, be passed through steam afterwards and heat up, rise at feed temperature
Start to be passed through chlorine when 78 DEG C, be passed through 410kg chlorine in 78-110 DEG C of interval, be passed through 290kg chlorine in 110-132 DEG C of interval,
It is passed through 410kg chlorine 133 DEG C of constant temperature stages, carries out feed liquid is stirred during being passed through chlorine, control mixing speed
For 140r/min, after chlorine is passed through end, continue stirring 50min；
C. washing: after logical chlorine stirring terminates, by near for reactor negative pressure 0.23MPA, after being cooled to 72 DEG C, discharge is in deacidification still
Carrying out deacidification, deacidification mixing speed is set to 125r/min, and it is 66 DEG C that temperature controls, and deacidification to pH value is 4.3；
D. neutralize: the feed liquid after washing is warming up to 84 DEG C, the Caustic soda that total amount is 45kg is divided 6 times and add in feed liquid, stirring speed
Degree controls to be 130r/min, adds a Caustic soda and surveys a pH value, when pH value is 7.2, stops stirring, whole N-process time
Control as 1.5h；
E. it is dried: the feed liquid after neutralizing is dried on the drying bed of 115 DEG C, controls water content≤0.7% of material；
F. pulverize: dried material is pulverized, cross the screen cloth of 30 mesh, prepare chlorinated polyethylene a2.
Embodiment 3:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add 8000L water in reactor, add the metering system of the benzoyl peroxide of 2.5kg, 23kg in water
Acid sodium, the hydrophobic silica of 1.5kg, the polyoxyethylene alcohol of 5kg, control mixing speed is 125r/min, mixing time control
It is made as 60min；
B. chlorine is led to: in reactor, add 1130kg polyethylene powder, be passed through steam afterwards and heat up, rise at feed temperature
Start to be passed through chlorine when 78 DEG C, be passed through 390kg chlorine in 78-110 DEG C of interval, be passed through 320kg chlorine in 110-132 DEG C of interval,
It is passed through 420kg chlorine 133 DEG C of constant temperature stages, carries out feed liquid is stirred during being passed through chlorine, control mixing speed
For 130r/min, after chlorine is passed through end, continue stirring 40min；
C. washing: after logical chlorine stirring terminates, by near for reactor negative pressure 0.26MPA, after being cooled to 70 DEG C, discharge is in deacidification still
Carrying out deacidification, deacidification mixing speed is set to 128r/min, and it is 63 DEG C that temperature controls, and deacidification to pH value is 4.6；
D. neutralize: the feed liquid after washing is warming up to 86 DEG C, the Caustic soda that total amount is 43kg is divided 3 times and add in feed liquid, stirring speed
Degree controls to be 120r/min, adds a Caustic soda and surveys a pH value, when pH value is 7.6, stops stirring, whole N-process time
Control as 100min；
E. it is dried: the feed liquid after neutralizing is dried on the drying bed of 118 DEG C, controls water content≤0.76% of material；
F. pulverize: dried material is pulverized, cross the screen cloth of 40 mesh, prepare chlorinated polyethylene a3.
Embodiment 4:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add 8000L water in reactor, add the metering system of the benzoyl peroxide of 3.5kg, 18kg in water
Acid sodium, the hydrophobic silica of 2.5kg, the polyoxyethylene alcohol of 6kg, control mixing speed is 126r/min, mixing time control
It is made as 50min；
B. chlorine is led to: in reactor, add 1080kg polyethylene powder, be passed through steam afterwards and heat up, rise at feed temperature
Start to be passed through chlorine when 78 DEG C, be passed through 380kg chlorine in 78-110 DEG C of interval, be passed through 310kg chlorine in 110-132 DEG C of interval,
It is passed through 410kg chlorine 133 DEG C of constant temperature stages, carries out feed liquid is stirred during being passed through chlorine, control mixing speed
For 140r/min, after chlorine is passed through end, continue stirring 60min；
C. washing: after logical chlorine stirring terminates, by near for reactor negative pressure 0.22MPA, after being cooled to 73 DEG C, discharge is in deacidification still
Carrying out deacidification, deacidification mixing speed is set to 130r/min, and it is 64 DEG C that temperature controls, and deacidification to pH value is 4.7；
D. neutralize: the feed liquid after washing is warming up to 83 DEG C, the Caustic soda that total amount is 46kg is divided 4 times and add in feed liquid, stirring speed
Degree controls to be 127r/min, adds a Caustic soda and surveys a pH value, when pH value is 7.3, stops stirring, whole N-process time
Control as 110min；
E. it is dried: the feed liquid after neutralizing is dried on the drying bed of 115 DEG C, controls water content≤0.78% of material；
F. pulverize: dried material is pulverized, cross the screen cloth of 50 mesh, prepare chlorinated polyethylene a4.
Embodiment 5:
A kind of production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that described production technology include with
Lower step:
A. stirring: add 8000L water in reactor, add the metering system of the benzoyl peroxide of 2.4kg, 21kg in water
Acid sodium, the hydrophobic silica of 1.6kg, the polyoxyethylene alcohol of 5kg, control mixing speed is 126r/min, mixing time control
It is made as 50min；
B. chlorine is led to: in reactor, add 1110kg polyethylene powder, be passed through steam afterwards and heat up, rise at feed temperature
Start to be passed through chlorine when 78 DEG C, be passed through 400kg chlorine in 78-110 DEG C of interval, be passed through 320kg chlorine in 110-132 DEG C of interval,
It is passed through 410kg chlorine 133 DEG C of constant temperature stages, carries out feed liquid is stirred during being passed through chlorine, control mixing speed
For 138r/min, after chlorine is passed through end, continue stirring 40min；
C. washing: after logical chlorine stirring terminates, by near for reactor negative pressure 0.27MPA, after being cooled to 71 DEG C, discharge is in deacidification still
Carrying out deacidification, deacidification mixing speed is set to 135r/min, and it is 68 DEG C that temperature controls, and deacidification to pH value is 4.2；
D. neutralize: the feed liquid after washing is warming up to 85 DEG C, the Caustic soda that total amount is 48kg is divided 6 times and add in feed liquid, stirring speed
Degree controls to be 140r/min, adds a Caustic soda and surveys a pH value, when pH value is 7.5, stops stirring, whole N-process time
Control as 120min；
E. it is dried: the feed liquid after neutralizing is dried on the drying bed of 125 DEG C, controls water content≤0.69% of material；
F. pulverize: dried material is pulverized, cross the screen cloth of 20 mesh, prepare chlorinated polyethylene a5.
The chlorinated polyethylene producing each embodiment above-mentioned detects respectively, and testing result is shown in Table 1.
Table 1
By above-mentioned detection example, the special chlorinated polyethylene of automobile-used oil-resisting rubber hose that the present invention provides has the mechanical property of excellence
Can, under oiliness and hot conditions, it still is able to keep excellent mechanical property simultaneously, the most indirectly illustrates this chlorinated polyethylene
There is non-fusibility and the resistance to elevated temperatures of excellence.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Part that the present invention does not relate to is the most same as the prior art maybe can use prior art to be realized.
Claims (8)
1. the production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that comprise the following steps:
A. stirring: add water in reactor, be stirred after adding initiator, dispersant, emulsifying agent in water；
B. chlorine is led to: in reactor, add polyethylene powder, be passed through steam afterwards and heat up, while heating up, be passed through chlorine
Gas；
C. washing: after logical chlorine stirring terminates, deacidification will be carried out in the feed liquid discharge in reactor to deacidification still；
D. neutralize: the feed liquid after washing is added Caustic soda and is neutralized；
E. it is dried: the feed liquid after neutralizing is dried, and obtains material after drying；
F. pulverize: dried material is pulverized, cross screen cloth, prepare chlorinated polyethylene；
Wherein, relative to the water of 8000L, the consumption of described initiator is 2-3kg, and the consumption of described dispersant is 20-23kg, institute
The consumption stating emulsifying agent is 4-6kg, and the consumption of described polyethylene powder is 1100-1120kg, and described chlorine consumption is 1050-
1150kg, described amount of caustic soda is 40-50kg.
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid A, described initiator is benzoyl peroxide, and described dispersant is Sodium methacrylate. and hydrophobic silica, described
Emulsifying agent is polyoxyethylene alcohol；
Preferably, the consumption of described Sodium methacrylate. is 19-21kg, and the consumption of described hydrophobic silica is 1-2kg；
It is further preferred that described mixing speed controls to be 130-140r/min, mixing time controls as 30-40min.
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid B, described in be passed through chlorine and use and be passed through for three times, wherein, feed temperature rises to start to be passed through chlorine when 78 DEG C, at 78-110 DEG C
Interval is passed through 390-410kg chlorine, is passed through 280-320kg chlorine in 110-132 DEG C of interval, is passed through 133 DEG C of constant temperature stages
390-410kg chlorine；
Preferably, carry out feed liquid is stirred during being passed through chlorine；
It is further preferred that described mixing speed controls as 130-140r/min, continuation stirring 30-after chlorine is passed through end
40min。
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid C, described blowdown pressure is negative pressure 0.2-0.25MPA, is cooled to 73-76 DEG C；
Preferably, in described feed liquid deacidification, mixing speed controls at 110-125r/min, and temperature controls as 60-65 DEG C；
It is further preferred that the pH value after described feed liquid deacidification is 4-4.5.
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid D, described employing adds to feed liquid for 3-5 time, and carries out surveying pH value after adding Caustic soda every time；
Preferably, described N-process mixing speed controls at 110-125r/min, and temperature controls as 80-85 DEG C, and by whole
The N-process time controls as 1.5-2h；
It is further preferred that in described feed liquid and after pH value be 7.2-7.5.
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid E, described dry employing centrifugal drying；
Preferably, described baking temperature controls as 110-120 DEG C；
It is further preferred that water content≤0.8% of described dried material.
The production technology of the special chlorinated polyethylene of automobile-used oil-resisting rubber hose the most according to claim 1, it is characterised in that in step
In rapid F, described screening uses the screening of 20-40 mesh.
8. the special chlorinated polyethylene of automobile-used oil-resisting rubber hose, it is characterised in that the described special chlorination of automobile-used oil-resisting rubber hose gathers
Ethylene is prepared by method processing described in any one in claim 1-7.
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| CN106632745A (en) * | 2016-12-24 | 2017-05-10 | 芜湖融汇化工有限公司 | Chlorinated polyethylene CPE special for automobile oil-resistant rubber tube and production process thereof |
| CN111995701A (en) * | 2020-09-09 | 2020-11-27 | 安徽华纳化学工业有限公司 | Preparation method of chlorinated polyethylene |
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