CN102660070A - Salt spray test communication cable inner-layer coating material and production method thereof - Google Patents
Salt spray test communication cable inner-layer coating material and production method thereof Download PDFInfo
- Publication number
- CN102660070A CN102660070A CN2012101128709A CN201210112870A CN102660070A CN 102660070 A CN102660070 A CN 102660070A CN 2012101128709 A CN2012101128709 A CN 2012101128709A CN 201210112870 A CN201210112870 A CN 201210112870A CN 102660070 A CN102660070 A CN 102660070A
- Authority
- CN
- China
- Prior art keywords
- copper
- coating material
- production method
- salt
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a salt spray test communication cable inner-layer coating material and a production method thereof. The invention aims at providing an improvement method of a coating material and a corresponding production method of the improved coating material. The production method provided by the invention can effectively improve salt spray corrosion resistance of a coaxial cable. A technical scheme of the production method comprises that the salt spray test communication cable inner-layer coating material comprises raw materials of linear low density polyethylene, ethylene-acrylic acid copolymer, a corrosion inhibitor for copper, calcium stearate, and an antioxidant for copper, wherein a weight ratio of the raw materials is (82-86): (11-15): 1: 1: 1; a buffer agent is benzotriazole or sodium mercaptobenzothiazole; the corrosion inhibitor for copper is methylbenzotriazole; and the antioxidant for copper is an antioxidant MD-1024 or an antioxidant 3114. The production method of the salt spray test communication cable inner-layer coating material comprises the following steps of 1, raw material reparation, 2, master batch preparation, 3, additive preparation and 4, extrusion and cutting.
Description
Technical field
The present invention relates to a kind of cable internal layer and coat material and working method thereof, especially salt-fog test telecommunication cable internal layer coats material and working method thereof.
Background technology
China is ocean big country, and the coastland is large stretch of saltings, and is especially strong to the demand of modernization communication.But, owing to the concentric cable that is not exclusively used in salt affected soil, resistance to chemical attack is supporting, can only adopt conventional concentric cable to substitute in the existing communications facility.And conventional concentric cable can't adapt to saline and alkaline regional salt air corrosion serious environmental, thereby often influences the signal of communication quality, even causes equipment failure.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes the above-mentioned background technology, and the improvement and the corresponding working method that provide a kind of concentric cable internal layer to coat material are with effective raising concentric cable salt fog resistance corrosive power.
The technical scheme that the present invention adopts is: a kind of salt-fog test telecommunication cable internal layer coats material; The composition that comprises is: linear low density polyethylene, ethylene acrylic acid co polymer, copper buffer reagent, calcium stearate, copper oxidation inhibitor, and its corresponding part by weight is 82-86: 11-15: 1: 1: 1;
Described buffer reagent is a benzotriazole, or mercapto benzothiazole sodium;
Described copper inhibitor is a TTA;
Described copper oxidation inhibitor is oxidation inhibitor MD-1024, or antioxidant 3114.
A kind of salt-fog test telecommunication cable internal layer coats the production technique of material, carries out successively according to following steps:
(1) batching: by 82-86: 11-15: 1: 1: 1 part by weight takes by weighing linear low density polyethylene, ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: at first linear low density polyethylene, ethylene acrylic acid co polymer are mixed; Mixing through the spiro rod plasticizing of forcing machine then, cut granulation and be prepared into master batch;
(3) prepare additive: copper inhibitor, calcium stearate, copper oxidation inhibitor are mixed promptly be prepared into additive, be mixed together with master batch then;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, and, recirculated water mixing through the spiro rod plasticizing of forcing machine cuts into particulate state after cooling off.
Mixer, mixing time 10-15 minute are adopted in mixing in the step (2).
Mixer is adopted in mixing in the step (3), and mixing time 3-7 minute, the mixer rotating speed was 100-200 rev/min.
The present invention directly is coated on inner wire surface (as shown in Figure 1), and thickness is generally 0.1-0.3mm.When making cable, take by weighing 25 kilograms of the present invention, 100 kilograms of physical blowing masterbatch are produced the concentric cable core wire on the physical blowing extruding production line; And then warp weaves, the sheath operation is produced concentric cable.
Product provided by the invention according to standard GB/T 2423.17-2008 electric and electronic product envrionment test, and the moist rust-preventive agent corrosion resistance test of USS SCTE 69-2003 method, has been verified the salt spray corrosion resistance of concentric cable; Still light is as before to finish experiment back inner wire; Reached qualified product standard fully.
The invention has the beneficial effects as follows: the novel batching institute synthetic cable internal layer through linear low density polyethylene LLDPE, ethylene acrylic acid co polymer EAA, copper buffer reagent, calcium stearate, five kinds of materials of copper oxidation inhibitor coats material, has overcome the deficiency that conventional concentric cable can't have corrosion resistance; The concentric cable of being produced has high water resistance, Corrosion Protection, possesses superior salt fog resistance corrosive power, makes it to use in the coastal serious occasion of salt fog situation that waits, and has promoted these geographic economy and social developments.The method that is provided can be produced high-quality cable internal layer simply and effectively and coat material, and adopts conventional equipment, can not increase production cost.
Description of drawings
Fig. 1 is the structural representation that utilizes the concentric cable that the present invention makes.
Have among the figure: inner wire 1, internal layer coat material 2, insulation layer 3, outer conductor 4, sheath 5.
Embodiment
The internal layer of traditional physically-foamed coaxial cable coats material, is generally mixed forming according to a certain ratio with ethylene acrylic acid co polymer EAA by low density polyethylene.Because LDPE has good electric property, machining property, EAA has good cohesiveness under certain heating power, so can be applicable to conventional occasion fully with the internal layer coating material of this formulation.But these two kinds of materials do not possess the performance of resisting salt fog corrosion, so the concentric cable that utilizes this conventional formulation to make does not possess the salt fog resistance corrosive property, can't apply to the coastal serious place of salt air corrosion of waiting.
The present invention researches and develops this internal layer through the mode of blocking salt air corrosion generation key element and coats material through research salt air corrosion genesis mechanism.Salt air corrosion is carried out with electrochemical means, and its mechanism is based on galvanic corrosion: anode metal loses electronics generation oxidizing reaction, and negative electrode obtains electronics, under the environment of water and oxygen, is reacted into hydroxyl ion.Anodic reaction is: nCu → nCu
2++ 2ne
-, cathodic reaction is: O
2+ 2H
2O+4e
-→ 4OH.
The three elements of salt air corrosion are water, oxygen and ion, and internal layer coats material can be coated on the inner wire surface equably, hinder the reaction of above-mentioned three elements and inner wire and corrode.According to salt fog resistance corrosion principle, select that cupric ion is had the copper inhibitor (preferred BTA) of passivation, sequestering action and the inner wire that copper oxidation inhibitor (preferred MD-1024) is protected concentric cable; Selection has the water absorbability calcium stearate and absorbs the water that possibly occur in the cable, is reacted into calcium chloride with cl ions simultaneously, reduces the existence of salinity.
According to above-mentioned thinking, salt-fog test telecommunication cable internal layer provided by the invention coats material, comprising composition be: (Ethylene Acrylic Acid is called for short EAA for linear low density polyethylene (LLDPE), ethylene acrylic acid co polymer; A kind of polymkeric substance) with thermoplasticity and high cementability, copper buffer reagent, calcium stearate, copper oxidation inhibitor, its corresponding mass ratio is 82-86: 11-15: 1: 1: 1.
Described buffer reagent is that benzotriazole (is claimed BTA again, molecular formula: C
6H
5N
3) or mercapto benzothiazole sodium (be MBTNa, claim MBT, molecular formula: C7H5NS2) again.
Described copper inhibitor TTA (is claimed TTA again, molecular formula: C7H7N3).Its effect is that active copper atom or the cupric ion on dependence and the copper surface produces a kind of chemisorption; Thereby and then take place sequestering action to form one deck densification and firm protective makes copper material obtain excellent protection.
Described copper oxidation inhibitor is 1, two [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazines of 2-, formal name used at school: oxidation inhibitor MD-1024, chemical formula: C34H52N2O4; Or isocyanuric acid (3,5-di-tert-butyl-4-hydroxyl benzyl ester, formal name used at school antioxidant 3114, chemical formula: C
48H
69O
6N
3
The production technique that a kind of salt-fog test telecommunication cable internal layer coats material is:
(1) batching: by 82-86: 11-15: 1: 1: 1 part by weight takes by weighing linear low density polyethylene (LLDPE), ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: at first the linear low density polyethylene that weighs up, ethylene acrylic acid co polymer are put into special-purpose mixer mixing 10-15 minute; Then the charging opening of mixed material by forcing machine added, after the spiro rod plasticizing of forcing machine is mixing, cut granulation, be prepared into master batch;
(3) preparation additive: the copper inhibitor that weighs up, calcium stearate, copper oxidation inhibitor are mixed (common mode is raw material to be put into the plastics bag of favorable sealing property; Tie behind the sack with roll plastics bag 5 minutes of hand; Promptly be prepared into additive); Note observing the mixture stirring condition, need it is smashed to pieces if any caking; At last master batch and additive are imported in the special-purpose mixer and mixed 3-7 minute, mixer batch mixing rotating speed is controlled at 100-200 rev/min;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, after the spiro rod plasticizing of process forcing machine is mixing, cuts into particulate state after the recirculated water cooling.Forcing machine is respectively distinguished temperature control as follows: 135 ± 5 ℃, and 155 ± 5 ℃, 175 ± 5 ℃,, 195 ± 5 ℃,, 215 ± 5 ℃,, 225 ± 5 ℃, 230 ± 5 ℃ (usual manner).
The structure of the concentric cable that employing the present invention makes is as shown in Figure 1: coating internal layer in the outside of inner wire 1 from inside to outside successively and coating material 2, insulation layer 3, outer conductor 4, sheath 5.
Embodiment 1:
A kind of salt-fog test telecommunication cable internal layer coats the production technique of material, accordings to following steps:
(1) batching: by 82: 11: 1: 1: 1 part by weight took by weighing linear low density polyethylene, ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: adopt mixer that linear low density polyethylene, ethylene acrylic acid co polymer are mixed mixing time 10 minutes; Mixing through the spiro rod plasticizing of forcing machine then, cut granulation and be prepared into master batch;
(3) prepare additive: copper inhibitor, calcium stearate, copper oxidation inhibitor are mixed promptly be prepared into additive, adopt mixer to mix with master batch then; Mixing time 3 minutes, mixer rotating speed are 100 rev/mins;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, and, recirculated water mixing through the spiro rod plasticizing of forcing machine cuts into particulate state after cooling off.
Embodiment 2:
A kind of salt-fog test telecommunication cable internal layer coats the production technique of material, accordings to following steps:
(1) batching: by 86: 15: 1: 1: 1 part by weight took by weighing linear low density polyethylene, ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: adopt mixer that linear low density polyethylene, ethylene acrylic acid co polymer are mixed mixing time 15 minutes; Mixing through the spiro rod plasticizing of forcing machine then, cut granulation and be prepared into master batch;
(3) prepare additive: copper inhibitor, calcium stearate, copper oxidation inhibitor are mixed promptly be prepared into additive, adopt mixer to mix with master batch then; Mixing time 7 minutes, mixer rotating speed are 200 rev/mins;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, and, recirculated water mixing through the spiro rod plasticizing of forcing machine cuts into particulate state after cooling off.
Embodiment 3:
A kind of salt-fog test telecommunication cable internal layer coats the production technique of material, accordings to following steps:
(1) batching: by 84: 13: 1: 1: 1 part by weight took by weighing linear low density polyethylene, ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: adopt mixer that linear low density polyethylene, ethylene acrylic acid co polymer are mixed mixing time 12 minutes; Mixing through the spiro rod plasticizing of forcing machine then, cut granulation and be prepared into master batch;
(3) prepare additive: copper inhibitor, calcium stearate, copper oxidation inhibitor are mixed promptly be prepared into additive, adopt mixer to mix with master batch then; Mixing time 5 minutes, mixer rotating speed are 150 rev/mins;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, and, recirculated water mixing through the spiro rod plasticizing of forcing machine cuts into particulate state after cooling off.
Claims (4)
1. a salt-fog test telecommunication cable internal layer coats material, and the composition that comprises is: linear low density polyethylene, ethylene acrylic acid co polymer, copper buffer reagent, calcium stearate, copper oxidation inhibitor, and its corresponding part by weight is 82-86:11-15:1:1:1;
Described buffer reagent is a benzotriazole, or mercapto benzothiazole sodium;
Described copper inhibitor is a TTA;
Described copper oxidation inhibitor is oxidation inhibitor MD-1024, or antioxidant 3114.
2. a salt-fog test telecommunication cable internal layer coats the production technique of expecting, carries out successively according to following steps:
(1) batching: the part by weight by 82-86:11-15:1:1:1 takes by weighing linear low density polyethylene, ethylene acrylic acid co polymer, copper inhibitor, calcium stearate, copper oxidation inhibitor;
(2) preparation master batch: at first linear low density polyethylene, ethylene acrylic acid co polymer are mixed; Mixing through the spiro rod plasticizing of forcing machine then, cut granulation and be prepared into master batch;
(3) prepare additive: copper inhibitor, calcium stearate, copper oxidation inhibitor are mixed promptly be prepared into additive, be mixed together with master batch then;
(4) extrude, cut: the material that will mix is added by the charging opening of forcing machine, and, recirculated water mixing through the spiro rod plasticizing of forcing machine cuts into particulate state after cooling off.
3. a kind of salt-fog test telecommunication cable internal layer according to claim 2 coats the production technique of material, it is characterized in that mixer, mixing time 10-15 minute are adopted in the mixing in the step (2).
4. a kind of salt-fog test telecommunication cable internal layer according to claim 3 coats the production technique of material, it is characterized in that mixer is adopted in the mixing in the step (3), and mixing time 3-7 minute, the mixer rotating speed was 100-200 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112870.9A CN102660070B (en) | 2012-04-17 | 2012-04-17 | Salt spray test communication cable inner-layer coating material and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112870.9A CN102660070B (en) | 2012-04-17 | 2012-04-17 | Salt spray test communication cable inner-layer coating material and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102660070A true CN102660070A (en) | 2012-09-12 |
| CN102660070B CN102660070B (en) | 2014-01-01 |
Family
ID=46769664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210112870.9A Active CN102660070B (en) | 2012-04-17 | 2012-04-17 | Salt spray test communication cable inner-layer coating material and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102660070B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198904A (en) * | 2013-03-26 | 2013-07-10 | 贝思特宽带通讯(烟台)有限公司 | Process for processing benzotriazole on inner conductor |
| CN103258595A (en) * | 2013-05-27 | 2013-08-21 | 浙江万马集团特种电子电缆有限公司 | Seawater-corrosion-resistant coaxial cable |
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
| CN110233001A (en) * | 2019-06-21 | 2019-09-13 | 杭州三元电缆有限公司 | A kind of RG-6 copper clad steel coaxial cable and preparation method thereof |
| CN113817256A (en) * | 2021-05-11 | 2021-12-21 | 江苏上上电缆集团新材料有限公司 | High-service-life copper damage irradiation-resistant cross-linked halogen-free low-smoke flame-retardant polyolefin insulating material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07105746A (en) * | 1993-05-31 | 1995-04-21 | Tatsuta Electric Wire & Cable Co Ltd | Polyvinyl chloride insulating wire for outdoor use |
| JPH0910943A (en) * | 1995-06-30 | 1997-01-14 | Toshiba Corp | Tig welding method and welding torch therefor |
| CN101870784A (en) * | 2010-03-29 | 2010-10-27 | 金发科技股份有限公司 | Impact resisting weather-proof polypropylene and preparation method thereof |
| CN101962519A (en) * | 2010-09-18 | 2011-02-02 | 海宁市科泰克金属表面技术有限公司 | Liquid insulating glue for cable joint |
| CN102108148A (en) * | 2010-12-31 | 2011-06-29 | 上海至正道化高分子材料有限公司 | Irradiation-crosslinked low-smoke halogen-free inflaming retarding insulation material for nuclear power station cable and preparation method thereof |
| CN102344612A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber cable insulating material for ship and ocean use and manufacturing method thereof |
-
2012
- 2012-04-17 CN CN201210112870.9A patent/CN102660070B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07105746A (en) * | 1993-05-31 | 1995-04-21 | Tatsuta Electric Wire & Cable Co Ltd | Polyvinyl chloride insulating wire for outdoor use |
| JPH0910943A (en) * | 1995-06-30 | 1997-01-14 | Toshiba Corp | Tig welding method and welding torch therefor |
| CN101870784A (en) * | 2010-03-29 | 2010-10-27 | 金发科技股份有限公司 | Impact resisting weather-proof polypropylene and preparation method thereof |
| CN101962519A (en) * | 2010-09-18 | 2011-02-02 | 海宁市科泰克金属表面技术有限公司 | Liquid insulating glue for cable joint |
| CN102108148A (en) * | 2010-12-31 | 2011-06-29 | 上海至正道化高分子材料有限公司 | Irradiation-crosslinked low-smoke halogen-free inflaming retarding insulation material for nuclear power station cable and preparation method thereof |
| CN102344612A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber cable insulating material for ship and ocean use and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198904A (en) * | 2013-03-26 | 2013-07-10 | 贝思特宽带通讯(烟台)有限公司 | Process for processing benzotriazole on inner conductor |
| CN103258595A (en) * | 2013-05-27 | 2013-08-21 | 浙江万马集团特种电子电缆有限公司 | Seawater-corrosion-resistant coaxial cable |
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
| CN110233001A (en) * | 2019-06-21 | 2019-09-13 | 杭州三元电缆有限公司 | A kind of RG-6 copper clad steel coaxial cable and preparation method thereof |
| CN113817256A (en) * | 2021-05-11 | 2021-12-21 | 江苏上上电缆集团新材料有限公司 | High-service-life copper damage irradiation-resistant cross-linked halogen-free low-smoke flame-retardant polyolefin insulating material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102660070B (en) | 2014-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102660070B (en) | Salt spray test communication cable inner-layer coating material and production method thereof | |
| CN102010538B (en) | Method for preparing natural cross-linking halogen-free flame-retardant polyolefin thermal conductive foam | |
| CN102952316B (en) | Halogen-free inflaming retarding insulating material of nuclear cable and cable insulating layer as well as preparation method and application thereof | |
| CN104031336B (en) | Flame retardant type data cable cable material | |
| CN102977451B (en) | For the low-smoke halogen-free flame-retardant sheath layer of optical cable | |
| CN105086123A (en) | Waterproof flame-retardant cable material | |
| CN105385016A (en) | Composite material based on ethylene-tetrafluoroethylene copolymer, preparation method and applications thereof | |
| CN103073795A (en) | Halogen-free flame-retardant polypropylene master batch, halogen-free flame-retardant polypropylene membrane and preparation method thereof | |
| CN103102593A (en) | Supported metal oxide catalytic synergistic inorganic flame retardant polypropylene composite material and preparation method thereof | |
| CN108707269A (en) | A kind of fire retardant, antistatic polyethylene pipe material and preparation method thereof | |
| CN104059298B (en) | Halogen-free polypropylene flame redardant reinforced composite of a kind of resistance to lithium battery electrolytes and preparation method thereof | |
| CN104744777A (en) | Polyethylene composite material and preparation method thereof | |
| CN105237969A (en) | Composite biodegradation gas-phase anti-rusting membrane and preparation process thereof | |
| CN103849041A (en) | Halogen-free flame-retardant masterbatch for polyethylene and preparation method of halogen-free flame-retardant masterbatch | |
| CN101475768B (en) | Modified polyolefins powder paint with ion shielding property and preparation thereof | |
| CN107083065A (en) | A kind of corrosion-resistant halogen-free anti-flaming polyolefin material and preparation method thereof | |
| CN106543523A (en) | It is a kind of to carry the enhanced CABLE MATERIALS of silver-colored CNT collaboration lauric ester of pentachlorophenol antibacterial and mouldproof | |
| CN104592751A (en) | Halogen-free flame retardant reinforced nylon 612 composite material, preparation method and application thereof | |
| CN105428591B (en) | A kind of seawater battery negative electrode and manufacturing process | |
| CN103694599A (en) | Efficient and environment-friendly polyvinyl chloride heat stabilizer and preparation method thereof | |
| CN114644788A (en) | Long-term high-temperature aging resistant polyolefin material and preparation method and application thereof | |
| CN103980644B (en) | For the compositional flame-retardant master batch and preparation method thereof of organosilane crosslinked polyethylene insulation material | |
| CN112778635A (en) | Polypropylene composite material for antibacterial weather-resistant refrigerator liner and preparation method thereof | |
| CN106147021A (en) | The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast | |
| CN104610630A (en) | Preparation method of saline-alkaline-resistant anti-corrosion macromolecule material and products of material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |