CN106632766A - CPE (Chlorinated Polyethylene) special for low-mooney viscosity cable and preparation technology thereof - Google Patents
CPE (Chlorinated Polyethylene) special for low-mooney viscosity cable and preparation technology thereof Download PDFInfo
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- CN106632766A CN106632766A CN201611235167.1A CN201611235167A CN106632766A CN 106632766 A CN106632766 A CN 106632766A CN 201611235167 A CN201611235167 A CN 201611235167A CN 106632766 A CN106632766 A CN 106632766A
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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Abstract
The invention provides CPE (Chlorinated Polyethylene) special for a low-mooney viscosity cable and a preparation technology thereof. The production technology comprises the following production steps: (1) adding an assistant in technological water under a stirring condition; (2) then adding high-density polyethylene powder, heating, and pumping into chlorine; (3) cooling to 72 to 78 DEG C after the kettle pressure is reduced below 0.2 MPA after the end of chlorine pumping, and conveying the mixture to a deacidifying kettle; (4) washing and deacidifying until the PH (Potential of Hydrogen) value is 4 to 5, and then alkalifying and neutralizing at 77 to 83 DEG C, thus obtaining the CPE. Compared with the prior art, the CPE produced by the invention is low in mooney viscosity and very good in processing performance and flowing performance, and is suitable for advanced cable sheaths. The chlorine content of the product is controlled to be 35 to 36 percent, meanwhile, the elongation at brake is not less than 700 percent, the tensile strength is about 8.2 MPA, and the comprehensive performance of the product achieves the best value.
Description
Technical field
The invention belongs to Material Field, and in particular to a kind of special haloflex CPE of low mooney viscosity cable and its life
Production. art.
Background technology
Haloflex is by the chlorination modified and obtained high molecular synthetic materials of polyethylene Jing.It is different by chlorinty, can
It is divided into plasticity haloflex (chlorinty 15%), elastic haloflex (16%-20%), elastomer haloflex
(25%-50%), hard haloflex (51%-60%).According to its residual crystallinity and other characteristics, modeling can be divided into and changed
Type haloflex (CPE) and rubber-type chlorinated polyethylene (CM).CPE is in the structure containing a certain amount of residual crystallization, CM bases
Originally residual crystallization is not contained.
Haloflex due to not containing unsaturated bond in its molecule, in linear random then structure, thus with heat-resisting, resistance to
The advantages of oily, resistance to ozone, ageing-resistant, fire-retardant, chemical-resistant resistance, good insulating.Haloflex is alone or blended, grafting is common
It is poly-, can be widely used in the aspects such as resin modified, rubber processing, coating, adhesive, engineering plastics.
The content of the invention
It is an object of the invention to provide a kind of special haloflex CPE of low mooney viscosity cable, Mooney viscosity is low, plus
Work performance and mobile performance are fabulous, it is adaptable to high degree cable sheath.
Another object of the present invention is to provide a kind of production work of the special haloflex CPE of low mooney viscosity cable
Skill, chlorination is sent out and change during answering logical chlorine dose and constant temperature zone reaction temperature, and the chlorinity of product is controlled in 35-36%, while disconnected
Elongation is split more than 700%, tensile strength reaches 8.2MPA, meet the demand of high degree cable sliding sleeve.
A kind of production technology of the special haloflex CPE of low mooney viscosity cable that the present invention is provided, including following step
Suddenly：
1), under agitation, auxiliary agent is added in fresh water (FW)；
2) and then, add high density polyethylene (HDPE) powder, heat up, be passed through chlorine；
3), lead to chlorine to terminate rear kettle pressure drop 72-78 DEG C is cooled to below 0.2MPA, be delivered to depickling kettle；
4) depickling, is washed to PH to 4-5, then in 77-83 DEG C plus alkali neutralization, obtain final product.
Further, fresh water (FW), high density polyethylene (HDPE) powder, the mass ratio of chlorine are 80:11:13.
Further, the quality of high density polyethylene (HDPE) powder is 44 times of auxiliary agent quality.The auxiliary agent is Weifang confederate state
The compound special environment friendly auxiliary agent that student produces.
Being passed through chlorine detailed process described in step (2) is：
After high density polyethylene (HDPE) powder is added, it is warming up to 75-110 DEG C and is passed through first paragraph chlorine, it is then logical at 110-128 DEG C
Enter second segment chlorine, finally, in 129 DEG C of constant temperature zones the 3rd section of chlorine is passed through；First paragraph chlorine, second segment chlorine and the 3rd section of chlorine
The mass ratio of gas is 5:4:4.
In step (2) during chlorine is passed through, flow is controlled in 400-500kgh.
The high density polyethylene (HDPE) powder, particle diameter is at least more than 40 mesh.The high density polyethylene (HDPE) powder is selected from Yangtze
Petrochemical industry high density polyethylene YEC 5515/T.
Further, the production technology also includes：5), centrifugal drying, packaging.
The special haloflex CPE of a kind of low mooney viscosity cable that the present invention is provided, is produced using said method.
Haloflex, is saturation macromolecular material, and outward appearance is white powder, nonpoisonous and tasteless, with excellent weatherability,
Resistance to ozone, chemical-resistant resistance and ageing-resistant performance, with good oil resistivity, anti-flammability and tinctorial property.Toughness it is good (-
30 DEG C still have pliability), there is good compatibility with other macromolecular materials, decomposition temperature is higher.
Haloflex is the Modified Polymer made by substitution reaction by polyethylene and chlorine, abbreviation CPE.With chlorine
Replacement, destroy the crystallinity of polyethylene, reduce vitrification point, but more than certain chlorinity after, vitrifying temperature
Degree is raised again.Haloflex has two kinds of typical structures, and first chlorine atom is randomly uniformly distributed on macromolecular chain, becomes
Saturation elastomer, it two is chlorine atom random uneven block distributed on macromolecular chain, shows the behavior of duroplasts.
The haloflex of chlorinty 25%～45% is a kind of specific rubber of heat-resisting, weather-proof and resistance to combustion.Chlorinty is more than 45%
Haloflex is white uniformity graininess amorphous solid.Due to macromolecular structure saturation and chlorine it is former in introducing, have CPE
There are good pliability, ozone resistance, weatherability, heat-resistant aging, oil resistivity, anti-flammability, electrical property, chemical proofing.
Elasticity and cold resistance are slightly worse.
Due to the replacement of chlorine atom, crystallization is destroyed, make CPE be provided with the characteristic of rubber.But he also not exclusively belongs to
Rubber, with certain plasticity.It is mainly manifested in creep properties.So above all to make residual as far as possible in the reaction
Crystallization is few.Effectively can equably be destroyed crystal by the control of temperature.If temperature is low, residual crystallization is high, rubbery
Can be poor, if temperature is too high more than fusing point, may in the reaction cause caking.So to formulate final according to original fusing point
Reaction segmentation.Logical chlorine is excessive, then the rubber performance of CPE declines, and crosses cost at least and rubber performance is not enough.So general temperature
Will according to the characteristics of raw material constant temperature zone temperature in fusing point once once, chlorinity is optimal state 35% or so.Point
The logical chlorine of section can allow chlorine to be more uniformly distributed.
In logical chlorine process, 75 DEG C of reaction starting temperature, mainly initiator start to be released from, by group, facilitating the present invention
Chain reaction.Because raw molecule amount is low, fusing point is also than relatively low so temperature setting is different.It was belonging in the past at 110 DEG C just
One-step chlorination, mainly reacts in PE particle surfaces, and 110-132 DEG C of category middle level reaction, 129 DEG C of constant temperature zone belongs to deep layer chlorination.Control
Fresh water (FW) processed, high density polyethylene (HDPE) powder, the mass ratio of chlorine are 80:11:13 so that chlorinity is controlled in 35-36%.Three sections
Distribution causes product uniform, it is to avoid residual crystallization, and the logical chlorine of final stage is in order at the consideration of stability less than other kinds.
Compared with prior art, the haloflex Mooney viscosity of present invention production is low, processing characteristics and mobile performance pole
It is good, it is adaptable to high degree cable sheath.And the present invention is by selecting suitable raw material, chlorination send out should during change logical chlorine dose,
Thus logical chlorine obtain qualified product with when constant temperature zone reaction temperature.The chlorinity of product is controlled in 35-36%, while disconnected
Elongation is split more than 700%, tensile strength reaches optimum value in 8.2MPA or so, the combination property of product.
Specific embodiment
Embodiment 1
A kind of production technology of the special haloflex CPE of low mooney viscosity cable, comprises the following steps：
1) the compound special environment friendly that Weifang confederate state chemical production, under agitation, is added in 8000L fresh water (FW)s is helped
Agent；
2) 1100 kilograms of high density polyethylene (HDPE) powders (Yangtze petrochemical industry high density polyethylene YEC5515/, is added
T), heat up, be passed through 500 kilograms of chlorine at 75-110 DEG C first, 400 kilograms of chlorine is then passed through at 110-128 DEG C, finally,
129 DEG C of constant temperature zones are passed through 400 kilograms of chlorine.
3), lead to chlorine to terminate to be delivered to depickling kettle after rear kettle pressure drop is cooled to 75 DEG C to below 0.2MPA.
4) depickling, is washed to PH to 4, then in 80 DEG C plus alkali neutralization；
5), centrifugal drying, packaging.
Prepared haloflex chlorinity 35.4%；Tensile strength 8.2MPA, elongation at break 860%；Mooney glues
Degree (125,1+4) 57；Shao Er hardness 52.
Claims (8)
1. a kind of production technology of the special haloflex CPE of low mooney viscosity cable, it is characterised in that the production technology bag
Include following steps：
1), under agitation, auxiliary agent is added in fresh water (FW)；
2) and then, add high density polyethylene (HDPE) powder, heat up, be passed through chlorine；
3), lead to chlorine to terminate rear kettle pressure drop 72-78 DEG C is cooled to below 0.2MPA, be delivered to depickling kettle；
4) depickling, is washed to PH to 4-5, then in 77-83 DEG C plus alkali neutralization, obtain final product.
2. the production technology of the special haloflex CPE of low mooney viscosity cable according to claim 1, its feature exists
In the mass ratio of fresh water (FW), high density polyethylene (HDPE) powder and chlorine is 80:11:13.
3. the production technology of the special haloflex CPE of low mooney viscosity cable according to claim 1, its feature exists
In the quality of high density polyethylene (HDPE) powder is 44 times of auxiliary agent quality.
4. the production technology of the special haloflex CPE of low mooney viscosity cable according to claim 1 and 2, its feature
It is to be passed through chlorine detailed process described in step (2) to be：
After high density polyethylene (HDPE) powder is added, it is warming up to 75-110 DEG C and is passed through first paragraph chlorine, is then passed through at 110-128 DEG C
Two sections of chlorine, finally, in 129 DEG C of constant temperature zones the 3rd section of chlorine are passed through；First paragraph chlorine, second segment chlorine and the 3rd section of chlorine
Mass ratio is 5:4:4.
5. the production technology of the special haloflex CPE of low mooney viscosity cable according to any one of claim 1-4, its
It is characterised by, in step (2) during chlorine is passed through, flow is controlled in 400-500kgh.
6. the production technology of the special haloflex CPE of low mooney viscosity cable according to any one of claim 1-5, its
It is characterised by, the high density polyethylene (HDPE) powder, particle diameter is at least more than 40 mesh.
7. the production technology of the special haloflex CPE of low mooney viscosity cable according to any one of claim 1-6, its
It is characterised by, the auxiliary agent is the compound special environment friendly auxiliary agent of Weifang confederate state chemical production.
8. the special haloflex CPE of a kind of low mooney viscosity cable, it is characterised in that using any one of claim 1-5 institute
The method production stated is obtained.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210809 | 2016-12-24 | ||
| CN2016112108092 | 2016-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106632766A true CN106632766A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611235167.1A Pending CN106632766A (en) | 2016-12-24 | 2016-12-28 | CPE (Chlorinated Polyethylene) special for low-mooney viscosity cable and preparation technology thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401671A (en) * | 2002-09-05 | 2003-03-12 | 刘旭思 | Process for water-phase suspension preparation of rubber-type chlorinated polyethylene |
| CN1827661A (en) * | 2006-02-21 | 2006-09-06 | 赵东日 | Chlorinated polyethylene with high maximum elongation, and preparation process and application thereof |
| CN101260168A (en) * | 2008-04-28 | 2008-09-10 | 江苏天腾化工有限公司 | Method for producing high-performance rubber type chlorinated polyethylene by water-phase method |
| CN101280030A (en) * | 2008-05-26 | 2008-10-08 | 张保发 | Preparation of chlorinated polythylene |
| CN101608001A (en) * | 2008-06-20 | 2009-12-23 | 淄博济维泽化工有限公司 | Water phase suspension prepares the method for chlorinatedpolyethylene |
| CN102260361A (en) * | 2011-06-03 | 2011-11-30 | 杭州新元化工技术开发有限公司 | Preparation method of chlorinated polyethylene |
-
2016
- 2016-12-28 CN CN201611235167.1A patent/CN106632766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401671A (en) * | 2002-09-05 | 2003-03-12 | 刘旭思 | Process for water-phase suspension preparation of rubber-type chlorinated polyethylene |
| CN1827661A (en) * | 2006-02-21 | 2006-09-06 | 赵东日 | Chlorinated polyethylene with high maximum elongation, and preparation process and application thereof |
| CN101260168A (en) * | 2008-04-28 | 2008-09-10 | 江苏天腾化工有限公司 | Method for producing high-performance rubber type chlorinated polyethylene by water-phase method |
| CN101280030A (en) * | 2008-05-26 | 2008-10-08 | 张保发 | Preparation of chlorinated polythylene |
| CN101608001A (en) * | 2008-06-20 | 2009-12-23 | 淄博济维泽化工有限公司 | Water phase suspension prepares the method for chlorinatedpolyethylene |
| CN102260361A (en) * | 2011-06-03 | 2011-11-30 | 杭州新元化工技术开发有限公司 | Preparation method of chlorinated polyethylene |
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