CN106467637A - A kind of insulation special elastomeric compound of low temperature resistant core and preparation method thereof - Google Patents
A kind of insulation special elastomeric compound of low temperature resistant core and preparation method thereof Download PDFInfo
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- CN106467637A CN106467637A CN201510504266.4A CN201510504266A CN106467637A CN 106467637 A CN106467637 A CN 106467637A CN 201510504266 A CN201510504266 A CN 201510504266A CN 106467637 A CN106467637 A CN 106467637A
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- China
- Prior art keywords
- insulation
- low temperature
- temperature resistant
- elastomeric compound
- resistant core
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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
-
- 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
-
- 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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic 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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of insulation special elastomeric compound of low temperature resistant core, its composition and content are as follows：Chlorinated polyethylene：34-38%, ethylene propylene diene rubber：8-12%, white carbon：6-8%, insulate reinforcing filler 19-23%, plasticizer 6-9%, other compounding ingredient 5-8%, fire retardant 15-18%, vulcanization accelerator 1.8-2.2%.The present invention has preferable resistance to low temperature, and remains other good combination properties, low temperature environment is brittle, good flame resistance, insulation resistance are big.
Description
Technical field
The present invention relates to rubber materials, particularly to a kind of insulation special elastomeric compound of low temperature resistant core
And preparation method thereof.
Background technology
At present, cable insulation material used in cable industry is mostly by EP rubbers, natural fourth
The materials such as benzene rubber are made, and the universal temperature resistant grade of these elastomeric materials is 70 DEG C, 90 DEG C, 105 DEG C,
And can not use at a lower temperature, typically in the environment of -30 DEG C about, Physical Mechanical
Can become excessively poor, rubber is brittle, and gently a folding will be broken off.
In the area that north of china in winter is cold, usually up to -40 DEG C of temperature, cable is easy to brokenly
Bad；And the insulation mechanical strength of above-mentioned rubber only has 5MPa, and percentage elongation is mostly
250%, often occur bringing because cable cannot bear used environment in production and life
Impact and the phenomenon of fragmentation occurs, seriously restrict and have impact on cable industry and all sectors of society
Development.Therefore how to improve the lower temperature resistance of core rubber, insulating properties has become many scientific research works
Author is keen to brainstorm project.
Content of the invention
For the problems referred to above, the invention provides a kind of insulation special elastomeric compound of low temperature resistant core,
Low temperature resistant, good flame resistance, insulation resistance are big.
To achieve these goals, the invention provides technical scheme below：A kind of insulation is resistance to low
The special elastomeric compound of warm core, according to mass fraction, its composition and content are as follows：
Preferably, the described chlorinated polyethylene trade mark is CM352L.
Preferably, described ethylene propylene diene rubber is KEP570.
Preferably, described plasticizer is DOS and DOA.
Preferably, described white carbon is ZC185.
Preferably, described inorganic combustion inhibitor is aluminium hydroxide.
Preferably, described insulation reinforcing filler is Pulvis Talci KS1250.
Preferably, described vulcanization accelerator is TAIC and 14S-FL.
Preferably, described compounding ingredient is ZnO+SA+ anti-aging agent RD+antioxidant MB.
The present invention adopt good flame resistance chlorinated polyethylene CM352L based on glue, its chlorinity is relatively
Height, flame retardant effect is notable, and insulating properties is preferably, then and with glass transition temperature is relatively low, body
The larger ethylene propylene diene rubber KEP570 of long-pending resistivity, thus improve the low temperature of natural rubber
Performance and insulating properties, the compatibility between chlorinated polyethylene and ethylene-propylene-diene monomer xanthan polymer is relatively
Good, and with the rear resistance to low temperature that effectively compensate for chlorinated polyethylene, and enhance elastomeric compound
Heat aging performance.
A certain amount of plasticizer of compound use to improve core cold tolerance further simultaneously, realizes
Good usability at -50 DEG C for the sizing material.
The present invention makes full use of the outstanding fire resistance of chlorinated polyethylene itself, with the use of fire-retardant
Agent Sb2O3And CP-70, greatly improve fire resistance, fire resistance oxygen index (OI) reaches
35.
Core material has the requirement of insulating properties, and the present invention is using ethylene propylene diene rubber as auxiliary
Material adds in chlorinated polyethylene, improves the insulating properties of sizing material, then coordinates white carbon reinforcement
Filler, further increases insulating properties, and insulation resistivity reaches 1 × 1010Ω.
Core material often contacts with skin, so the requirement for environmental protection aspect is also very high,
The present invention does not use white carbon black, and adopts environment-friendlyplasticizer plasticizer, and fire retardant aspect has also been selected inorganic
Fire retardant, makes PAHS content≤2ppm.
Performance requirement according to formula and the feature of insulation resistance to low temperature, the present invention also provides
A kind of preparation method of the insulation special elastomeric compound of low temperature resistant core, comprises the following steps that.
(1) standby glue：According to the characteristic of chlorinated polyethylene rubber and ethylene propylene diene rubber, according to each
Performance between material, gets the raw materials ready according to content sequentially as follows：
Chlorinated polyethylene fire retardant, white carbon, insulation reinforcing filler, compounding ingredient
Plasticizer ethylene propylene diene rubber；
(2) first mixing, because chlorinated polyethylene is pulverulence, knead small volume, mix
Refining glue can be difficult to agglomerating, therefore by compounding ingredient, fire retardant, white carbon, reinforcing filler, chlorine
Change polyethylene to mix in advance, first put into the material that half mixes in advance, then put into plasticizer, so
Put into the material that residue mixes in advance afterwards, finally ethylene propylene diene rubber is put into banbury, mixing
The 60-90 second, then clean, knead the 60-90 second, clean again, knead the 90-120 second again
Discharging slice afterwards, makes mixing A glue standby；
(3) second mixing, will knead A glue and add vulcanization accelerator, knead the 60-90 second,
The 30-60 second is kneaded again it is ensured that the fully rear bottom sheet of mixing dispersion is standby after cleaning.
The present invention adopts glue based on chlorinated polyethylene rubber, and chlorinity is higher, and flame retardant effect is notable,
And insulating properties is preferably, and increased the resistance to low temperature of product with a small amount of ethylene propylene diene rubber,
Using insulation reinforcing filler and fire retardant filling, enhance fire resistance and the insulating properties of rubber
Energy.The present invention disclosure satisfy that the strict demand of electric wire used by low temp area：Low temperature environment is not
Embrittlement, good flame resistance, insulation resistance are big.
Specific embodiment
Technical scheme in the embodiment of the present invention will be clearly and completely described below, show
So, described embodiment is only a part of embodiment of the present invention, rather than whole enforcement
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment being obtained under the premise of work, broadly falls into the scope of protection of the invention.
Embodiment 1-2
Manufacture the special elastomeric compound of the low temperature resistant core of insulation involved in the present invention according to following steps
Standby glue, according to the content proportioning in table 1, according to (chlorinated polyethylene → fire retardant, white
White carbon black, insulation reinforcing filler, compounding ingredient → plasticizer → ethylene propylene diene rubber) order according to
Secondary raw material weighs accurately, shelves standby.
First mixing：Compounding ingredient, fire retardant, white carbon, reinforcing filler, chlorination are gathered
Ethylene mixes in advance, first puts into this material of mixing in advance of half, then puts into plasticizer, then
Put into the material that residue mixes in advance, finally ethylene propylene diene rubber is put into banbury, mixing
The 60-90 second, then clean, knead the 60-90 second, clean again, knead the 90-120 second again
Discharging slice afterwards, makes mixing A glue standby.,
Second kneads：Elastomeric compound A and vulcanization accelerator are put into the mixer mixing 60-90 second,
Then it is dumped into slice on cutting machine after continuing the mixing 30-60 second after cleaning, complete to prepare.
The mixing time of embodiment 1-2 is shown in Table 2.
The various performance parameters of the insulation special elastomeric compound of low temperature resistant core that embodiment 1-2 is made are shown in
Table 3.
Table 1 is in the percentage by weight of each composition of embodiment 1-2.
The mixing time of table 2 embodiment 1-2
The performance parameter of table 3 embodiment 1-2 product.
As can be seen from Table 3, the present invention has preferable resistance to low temperature, and it is good to remain other
Good combination property, low temperature environment is brittle, good flame resistance, insulation resistance are big.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of
Or use the present invention.Multiple modifications to these embodiments come to those skilled in the art
Say and will be apparent from, generic principles defined herein can be without departing from the present invention's
In the case of spirit or scope, realize in other embodiments.Therefore, the present invention will not be by
It is limited to the embodiments shown herein, and be to fit to and principles disclosed herein and new
The consistent scope the widest of clever feature.
Claims (9)
1. one kind insulate the special elastomeric compound of low temperature resistant core it is characterised in that pressing mass fraction, its group
Divide and content is as follows：
2. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
The described chlorinated polyethylene trade mark is CM352L.
3. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described ethylene propylene diene rubber is KEP570.
4. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described plasticizer is DOS and DOA.
5. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described inorganic combustion inhibitor is aluminium hydroxide.
6. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described insulation reinforcing filler is Pulvis Talci KS1250.
7. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described vulcanization accelerator is TAIC and 14S-FL.
8. according to claim 1 insulation the special elastomeric compound of low temperature resistant core it is characterised in that
Described compounding ingredient is ZnO+SA+ anti-aging agent RD+antioxidant MB.
9. a kind of preparation method of the insulation special elastomeric compound of low temperature resistant core is it is characterised in that wrap successively
Include following steps：
(1) standby glue：Get chlorinated polyethylene, fire retardant, white carbon, insulation reinforcement according to content ready
Filler, compounding ingredient, plasticizer, ethylene propylene diene rubber；
(2) first mixing：By compounding ingredient, fire retardant, white carbon, insulation reinforcing filler,
After chlorinated polyethylene mixes in advance, first put into half to banbury, then put into plasticizer, then throw
Enter the material that residue mixes in advance, finally ethylene propylene diene rubber is put into banbury, knead 60-90
Second, then clean, knead the 60-90 second, clean again, after the mixing 90-120 second, discharging goes out again
Piece, makes mixing A glue standby；
(3) second mixing, will knead A glue and add vulcanization accelerator, knead the 60-90 second, clearly
The 30-60 second is kneaded again it is ensured that the fully rear bottom sheet of mixing dispersion is standby after sweeping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510504266.4A CN106467637A (en) | 2015-08-17 | 2015-08-17 | A kind of insulation special elastomeric compound of low temperature resistant core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510504266.4A CN106467637A (en) | 2015-08-17 | 2015-08-17 | A kind of insulation special elastomeric compound of low temperature resistant core and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106467637A true CN106467637A (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510504266.4A Pending CN106467637A (en) | 2015-08-17 | 2015-08-17 | A kind of insulation special elastomeric compound of low temperature resistant core and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486044A (en) * | 2018-11-23 | 2019-03-19 | 大连永旭线缆制造有限公司 | A kind of cold-resistant type frequency conversion top drive cable special sheath sizing material and cable |
| CN109651716A (en) * | 2018-12-18 | 2019-04-19 | 太仓冠联高分子材料有限公司 | A kind of dedicated rubber compound of bus seat and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151724A (en) * | 2014-08-15 | 2014-11-19 | 安徽江淮电缆集团有限公司 | Formula of chlorinated polyethylene flame retardation insulation material for parallel flexible cords |
-
2015
- 2015-08-17 CN CN201510504266.4A patent/CN106467637A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151724A (en) * | 2014-08-15 | 2014-11-19 | 安徽江淮电缆集团有限公司 | Formula of chlorinated polyethylene flame retardation insulation material for parallel flexible cords |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486044A (en) * | 2018-11-23 | 2019-03-19 | 大连永旭线缆制造有限公司 | A kind of cold-resistant type frequency conversion top drive cable special sheath sizing material and cable |
| CN109651716A (en) * | 2018-12-18 | 2019-04-19 | 太仓冠联高分子材料有限公司 | A kind of dedicated rubber compound of bus seat and preparation method thereof |
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Application publication date: 20170301 |
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