CN108690306A - PMA-EMA high-strength cable sealing sheaths and preparation method thereof - Google Patents
PMA-EMA high-strength cable sealing sheaths and preparation method thereof Download PDFInfo
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- CN108690306A CN108690306A CN201810618644.5A CN201810618644A CN108690306A CN 108690306 A CN108690306 A CN 108690306A CN 201810618644 A CN201810618644 A CN 201810618644A CN 108690306 A CN108690306 A CN 108690306A
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
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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
- H01B3/447—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 acrylic compounds
-
- 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)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of PMA-EMA high-strength cables sealing sheath and preparation method thereof, which includes:1) waterglass and sulfuric acid solution are mixed to form hydrogel;2) bentonite is soaked in hydrochloric acid solution and carries out activation process, then filter to take filter cake so that modifying agent is made;3) complex compound, silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, triallyl cyanurate, 2- benzothiazolyl mercaptans, hydrogel shown in PMA (polymethyl acrylate), EMA (ethylene-methacrylic acid copolymer), formula (I) and modifying agent are kneaded, are cooled and shaped so that PMA-EMA high-strength cable sealing sheaths are made.There is excellent mechanical property, corrosion-resistant and pressure-resistant performance by cable seal sheath made from this method.
Description
Technical field
The present invention relates to cable seal sheaths, and in particular, to a kind of preparation of PMA-EMA high-strength cables sealing sheath
Method.
Background technology
Cable is typically by several or the cable of similar rope made of several groups of wire strandings, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.Cable is mainly by following 4 part group
At:1. conducting wire center is made of high conductivity material (copper or aluminium).2. insulating layer, the insulating materials as cable should have
High insulation resistance, high breakdown field strength, low dielectric loss and low dielectric constant.Common insulating materials in cable
There are oil-paper, polyvinyl chloride, polyethylene, crosslinked polyethylene, rubber etc..3. sealing sheath protects protection insulated wire heart from machinery, water
Point, the damage of moisture, chemical substance, light etc..Insulation for moisture-sensitive generally uses lead or aluminium extrusion sealing sheath.4. protecting
Coating is protected, to protect sealing sheath from mechanical damage.Generally using the conducts such as galvanized steel strip, steel wire or copper strips, copper wire
Armor surrounds outside sheath and (claims armored cable), and armor plays electric field shielding and prevents external electromagnetic wave interference simultaneously.
In order to avoid steel band, steel wire are corroded by surrounding media, pitch or wrapping macerated jute layer or crowded generally outside them
Pressure polyethylene, polyvinyl chloride set.
Currently, sealing sheath is at most high molecular material.Use initial stage, sealing sheath that there is excellent mechanics in cable
Performance can play, and protect protection insulated wire heart from the damaging action of machinery, moisture, moisture, chemical substance, light etc..But with
The passage of usage time, sealing sheath the case where mechanical properties decrease can occur in turn because of aging or corrosion, or even will appear
Cracking.Such case is extremely frequently happened at submarine cable, this is because submarine cable will not only bear huge pressure, together
When also suffer from seawater erosion so that sealing sheath performance straight line decline, to reduce the performance of cable.
Invention content
The object of the present invention is to provide a kind of PMA-EMA high-strength cables sealing sheaths and preparation method thereof, pass through the party
Cable seal sheath made from method has excellent mechanical property, corrosion-resistant and pressure-resistant performance.
To achieve the goals above, the present invention provides a kind of preparation method of PMA-EMA high-strength cables sealing sheath,
The preparation method includes:
1) waterglass and sulfuric acid solution are mixed to form hydrogel;
2) bentonite is soaked in hydrochloric acid solution and carries out activation process, then filter to take filter cake so that modifying agent is made;
3) by complex compound, two shown in PMA (polymethyl acrylate), EMA (ethylene-methacrylic acid copolymer), formula (I)
Silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, cyanuric acid three
Allyl ester, 2- benzothiazolyl mercaptans, hydrogel and modifying agent are kneaded, cooling and shaping are close PMA- EMA high-strength cables are made
Closure set;
The present invention also provides a kind of PMA-EMA high-strength cables sealing sheath, PMA-EMA high-strength cables sealing shields
Set is prepared by above-mentioned method.
Through the above technical solutions, preparation method provided by the invention is three-step approach, the first step is:By waterglass and sulfuric acid
Solution is mixed to form hydrogel;Second step is:Bentonite is soaked in hydrochloric acid solution and carries out activation process, then filters to take filter
Cake is to be made modifying agent;Third walks:By PMA, EMA, shown in complex compound, silica, trioctyl trimellitate (TOTM), hydrazine, first
Base-α-D- glucopyranosides, diborane, 1,3- dithioglycols, triallyl cyanurate, 2- benzothiazolyl mercaptans, water
Gel and modifying agent are kneaded, are cooled and shaped so that PMA-EMA high-strength cable sealing sheaths are made.Pass through the collaboration of above steps
Synergistic effect between effect and each material is so that cable seal sheath obtained has excellent mechanical property, corrosion resistant
The performance of erosion and pressure resistance.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Fig. 1 is the structural formula of formula (I) compound of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of preparation method of PMA-EMA high-strength cables sealing sheath, which includes:
1) waterglass and sulfuric acid solution are mixed to form hydrogel;
2) bentonite is soaked in hydrochloric acid solution and carries out activation process, then filter to take filter cake so that modifying agent is made;
3) by complex compound, two shown in PMA (polymethyl acrylate), EMA (ethylene-methacrylic acid copolymer), formula (I)
Silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, cyanuric acid three
Allyl ester, 2- benzothiazolyl mercaptans, hydrogel and modifying agent are kneaded, cooling and shaping are close PMA- EMA high-strength cables are made
Closure set;
In the step 1) of the present invention, the dosage of each material can select in a wide range, but in order to enable be made
Cable seal sheath have superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that in step 1), relatively
In the waterglass of 100 parts by weight, the dosage of sulfuric acid solution is a concentration of 15-20 weights of 300-450 parts by weight and sulfuric acid solution
Measure %.
In the step 1) of the present invention, mixed actual conditions can select in a wide range, but in order to enable system
The cable seal sheath obtained has superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that in step 1), mixes
It is bonded to and meets the following conditions less:Mixing temperature is 35-45 DEG C, incorporation time 2-3h.
In the step 2) of the present invention, the dosage of each material can select in a wide range, but in order to enable be made
Cable seal sheath have superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that in step 2), relatively
In the bentonite of 100 parts by weight, the dosage of hydrochloric acid solution is a concentration of 25-30 weights of 200-250 parts by weight and sulfuric acid solution
Measure %.
In the step 2) of the present invention, the condition of activation process can select in a wide range, but in order to enable system
The cable seal sheath obtained has superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that living in step 2)
Change processing at least meets the following conditions:Activation temperature is 78-85 DEG C, soak time 3-5h.
In the step 3) of the present invention, the dosage of each material can select in a wide range, but in order to enable be made
Cable seal sheath have superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that in step 3), relatively
It is 85-90 parts by weight in the dosage of the PMA of 100 parts by weight, EMA, the dosage of complex compound is 1.5-3 parts by weight, silica
Dosage is 55-63 parts by weight, and the dosage of trioctyl trimellitate (TOTM) is 35-39 parts by weight, and the dosage of hydrazine is 5-9 parts by weight, methyl-
The dosage of α-D- glucopyranosides is 7-13 parts by weight, and the dosage of diborane is 3-6 parts by weight, the use of 1,3- dithioglycol
Amount is 21-34 parts by weight, and the dosage of triallyl cyanurate is 15-29 parts by weight, and the dosage of 2- benzothiazolyl mercaptans is
The dosage of 10-16 parts by weight, hydrogel is 16-23 parts by weight, and the dosage of modifying agent is 20-29 parts by weight.
In the step 3) of the present invention, the molecular weight of PMA, EMA can select in a wide range, but in order to enable system
The cable seal sheath obtained has superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that the Weight-average molecular of PMA
Amount is 9000-12000, and the weight average molecular weight of EMA is 5000-8000.
In the step 3) of the present invention, compounding conditions can select in a wide range, but in order to enable electricity obtained
Cable sealing sheath has superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that mixing at least meets following item
Part:Melting temperature is 215-220 DEG C, mixing time 60-80mim.
In the step 3) of the present invention, cooling condition can select in a wide range, but in order to enable electricity obtained
Cable sealing sheath has superior mechanical property, corrosion-resistant and pressure-resistant performance, it is preferable that cooling temperature is 10-15
℃。
The present invention also provides a kind of PMA-EMA high-strength cables sealing sheath, PMA-EMA high-strength cables sealing shields
Set is prepared by above-mentioned method.
The present invention will be described in detail by way of examples below.Wherein, in following embodiments, network shown in formula (I)
The structural formula for closing object is as follows:
Embodiment 1
1) at 40 DEG C, waterglass is mixed into 2.5h with sulfuric acid solution (a concentration of 18 weight %) according to 400 weight ratio
Form hydrogel;
2) at 80 DEG C, by bentonite and hydrochloric acid solution (a concentration of 27 weight %) according to 100:230 weight ratio mixing
Then 4h filters to take filter cake so that modifying agent is made so that bentonite is carried out activation process;
3) by complex compound, two shown in PMA (weight average molecular weight 10000), EMA (weight average molecular weight 7000), formula (I)
Silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, cyanuric acid three
Allyl ester, 2- benzothiazolyl mercaptans, hydrogel and modifying agent are according to 100:88:2:60:37: 6:10:4:30:25:13:20:
25 mixed are incorporated at 218 DEG C are kneaded 70mim, are cooled and shaped at 13 DEG C PMA-EMA high-strength cable sealing sheaths A1 is made.
Embodiment 2
1) at 35 DEG C, waterglass is mixed into 2h shapes with sulfuric acid solution (a concentration of 15 weight %) according to 300 weight ratio
At hydrogel;
2) at 78 DEG C, by bentonite and hydrochloric acid solution (a concentration of 25 weight %) according to 100:200 weight ratio mixing
Then 3h filters to take filter cake so that modifying agent is made so that bentonite is carried out activation process;
3) by complex compound, two shown in PMA (weight average molecular weight 9000), EMA (weight average molecular weight 5000), formula (I)
Silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, cyanuric acid three
Allyl ester, 2- benzothiazolyl mercaptans, hydrogel and modifying agent are according to 100:85:1.5:55:35: 5:7:3:21:15:10:
16:20 mixed are incorporated at 215 DEG C are kneaded 60mim, are cooled and shaped at 10 DEG C PMA-EMA high-strength cable sealing sheaths are made
A2。
Embodiment 3
1) at 45 DEG C, waterglass is mixed into 3h shapes with sulfuric acid solution (a concentration of 20 weight %) according to 450 weight ratio
At hydrogel;
2) at 85 DEG C, by bentonite and hydrochloric acid solution (a concentration of 30 weight %) according to 100:250 weight ratio mixing
Then 5h filters to take filter cake so that modifying agent is made so that bentonite is carried out activation process;
3) by complex compound, two shown in PMA (weight average molecular weight 12000), EMA (weight average molecular weight 8000), formula (I)
Silica, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, cyanuric acid three
Allyl ester, 2- benzothiazolyl mercaptans, hydrogel and modifying agent are according to 100:90:3:63:39: 9:13:6:34:29:16:23:
29 mixed are incorporated at 220 DEG C are kneaded 80mim, are cooled and shaped at 15 DEG C PMA-EMA high-strength cable sealing sheaths A3 is made.
Comparative example 1
It carries out that cable seal sheath B1 is made according to the method for embodiment 1, unlike, water-setting is not used in step 3)
Glue.
Comparative example 2
It carries out that cable seal sheath B2 is made according to the method for embodiment 1, unlike, it is not used and is modified in step 3)
Agent.
Detect example 1
The tensile strength (σ t/MPa) and elongation at break (δ/%) for detecting above-mentioned cable seal sheath, then will be upper
It states cable seal sheath to be placed in the seawater of 200m depths 6 months, then detects stretching strength retentivity (E1/%) and extension at break
Rate conservation rate (E2/%), concrete outcome is shown in Table 1.
Table 1
By above-described embodiment, comparative example and detection example it is found that having for cable seal sheath provided by the invention is excellent
Mechanical property, corrosion-resistant and pressure-resistant performance.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of preparation method of PMA-EMA high-strength cables sealing sheath, which is characterized in that the preparation method includes:
1) waterglass and sulfuric acid solution are mixed to form hydrogel;
2) bentonite is soaked in hydrochloric acid solution and carries out activation process, then filter to take filter cake so that modifying agent is made;
3) by complex compound, titanium dioxide shown in PMA (polymethyl acrylate), EMA (ethylene-methacrylic acid copolymer), formula (I)
Silicon, trioctyl trimellitate (TOTM), hydrazine, methyl-α-D- glucopyranosides, diborane, 1,3- dithioglycols, three allyl of cyanuric acid
Ester, 2- benzothiazolyl mercaptans, the hydrogel and modifying agent are kneaded, are cooled and shaped so that the PMA-EMA high intensity electricity is made
Cable sealing sheath;
2. preparation method according to claim 1, wherein in step 1), the water glass relative to 100 parts by weight
Glass, the dosage of the sulfuric acid solution are a concentration of 15-20 weight % of 300-450 parts by weight and the sulfuric acid solution.
3. preparation method according to claim 2, wherein in step 1), the mixing at least meets the following conditions:It is mixed
It is 35-45 DEG C to close temperature, incorporation time 2-3h.
4. according to the preparation method described in any one of claim 1-3, wherein in step 2), relative to 100 parts by weight
The bentonite, the dosage of the hydrochloric acid solution is a concentration of 25-30 weights of 200-250 parts by weight and the sulfuric acid solution
Measure %.
5. preparation method according to claim 4, wherein in step 2), the activation process at least meets following item
Part:Activation temperature is 78-85 DEG C, soak time 3-5h.
6. according to the preparation method described in claim 1-3, any one of 5, wherein in step 3), relative to 100 weight
The dosage of the PMA of part, the EMA are 85-90 parts by weight, and the dosage of the complex compound is 1.5-3 parts by weight, the dioxy
The dosage of SiClx is 55-63 parts by weight, and the dosage of the trioctyl trimellitate (TOTM) is 35-39 parts by weight, and the dosage of the hydrazine is
The dosage of 5-9 parts by weight, the methyl-α-D- glucopyranosides is 7-13 parts by weight, and the dosage of the diborane is 3-6 weights
Part is measured, the dosage of 1, the 3- dithioglycols is 21-34 parts by weight, and the dosage of the triallyl cyanurate is 15-29 weights
Part is measured, the dosage of the 2- benzothiazolyl mercaptans is 10-16 parts by weight, and the dosage of the hydrogel is 16-23 parts by weight, institute
The dosage for stating modifying agent is 20-29 parts by weight.
7. preparation method according to claim 6, wherein the weight average molecular weight of the PMA is 9000-12000, described
The weight average molecular weight of EMA is 5000-8000.
8. preparation method according to claim 7, wherein wherein, the mixing at least meets the following conditions:Melting temperature
It is 215-220 DEG C, mixing time 60-80mim.
9. preparation method according to claim 7 or 8, wherein the temperature of the cooling is 10-15 DEG C.
10. a kind of PMA-EMA high-strength cables sealing sheath, which is characterized in that the PMA-EMA high-strength cables sealing sheath
It is prepared by the method described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618644.5A CN108690306A (en) | 2018-06-15 | 2018-06-15 | PMA-EMA high-strength cable sealing sheaths and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618644.5A CN108690306A (en) | 2018-06-15 | 2018-06-15 | PMA-EMA high-strength cable sealing sheaths and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108690306A true CN108690306A (en) | 2018-10-23 |
Family
ID=63848843
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810618644.5A Withdrawn CN108690306A (en) | 2018-06-15 | 2018-06-15 | PMA-EMA high-strength cable sealing sheaths and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542369A (en) * | 2016-01-12 | 2016-05-04 | 芜湖航天特种电缆厂股份有限公司 | PMA-EMA high-strength cable sealing sheath and preparation method thereof |
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2018
- 2018-06-15 CN CN201810618644.5A patent/CN108690306A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542369A (en) * | 2016-01-12 | 2016-05-04 | 芜湖航天特种电缆厂股份有限公司 | PMA-EMA high-strength cable sealing sheath and preparation method thereof |
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