CN109320829A - A kind of cable blocks and preparation method thereof - Google Patents
A kind of cable blocks and preparation method thereof Download PDFInfo
- Publication number
- CN109320829A CN109320829A CN201811056608.0A CN201811056608A CN109320829A CN 109320829 A CN109320829 A CN 109320829A CN 201811056608 A CN201811056608 A CN 201811056608A CN 109320829 A CN109320829 A CN 109320829A
- Authority
- CN
- China
- Prior art keywords
- parts
- zinc oxide
- preparation
- blocks
- ethylene
- 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.)
- Pending
Links
Classifications
-
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Blocked the invention discloses a kind of cable and preparation method thereof, belong to cable blocking technology field, the preparation of the closure includes the raw material of following parts by weight: 150-200 parts of ethylene-vinyl acetate copolymer, 80-90 parts of polypropylene, 10-20 parts of white oil, 100-150 parts of ethylene/alpha-olefin hydrocarbon block copolymer, 10-20 parts of whiting, 30-50 parts of calcium carbonate, 20-30 parts of active modification zinc oxide, 10-15 parts of vinyltrimethoxysilane, 5-15 parts of stearic acid, 15-25 parts of dual-tert-butyl dicumyl peroxide, 5-10 parts of azodicarbonamide, closure is prepared using mixing-homogenizing plasticizing-extrusion forming, the closure being prepared has high flexibility and high-ductility performance, to have good deformation effect and leakproofness, and Compression set is small, reusable.
Description
Technical field
Blocked the present invention relates to cable blocking technology field more particularly to a kind of cable and preparation method thereof.
Background technique
In recent years, with the quickening of power grid construction, the extensive use of distribution cable route, the closure of cable protection pipe outlet
Situation also exposes many problems, and thus bring cable insulation damage causes line tripping to happen occasionally, and directly affects line
The safe operation on road, causes a hidden trouble to equipment and personal safety.Cable underground pipe network, artificial well, the electric power, communications service of early stage
Between wall feed-through pipeline, underground distribution, in substation's construction, since hardware design standard starting point is low, waterproof closure is dealt with improperly, mostly
It is crammed using putties such as cement mixing waterproofing agent, leak stopping king, fire-proof muds, sealing effect is very poor, causes to have more in cable tube
Now infiltration, ponding, sediment siltation, pernicious gas penetrate into, worm mouse flee breeding the problems such as, in pipeline cable safety and day
Normal maintenance construction can all make a big impact, serious also to will cause electric power or communicating interrupt accident.For example, utilizing foaming glue material
Material is blocked, although can block to cable, plugging effect is bad, once rainwater is encountered, the probability leaked
It is quite high.Another kind is blocked the most commonly used is the material using cement, fire-proof mud etc, but construction time and material solidification
Time is long, and the requirement to construction environment is also relatively high, and excessively high or too low temperature is all not suitable for using applying man-hour requirement
Construction is inconvenient when keeping the dry environment in pipeline, and having cable in pipeline, especially when pipeline inner cable quantity is more, makes
It cannot successfully be constructed with the closure of these materials, can not achieve effective closure, and when cable needs mobile, it can be right
The plugging material having been cured is squeezed, and gap is generated, and occurs blocking failure, both the above pipe plugging material is in reply electricity
Reaction of expanding with heat and contract with cold in cable operational process is also poor.Currently, there is a kind of novel cable block head, using flexible sealing rubber
Glue part blocks pipeline.Principle is to put rubber block head in cable tube into, then tightens the bolt of connector, is forced soft
Property sealing element deformation, the inner ring circumferential surface of flexible seals is adjacent in cable surface, and the outer circumference surface of flexible seals is adjacent to
Cable inside pipe wall, to form sealing inside and outside cable tube.It is reusable using rubber block head, and worm can be prevented
Mouse gnaws, but deformation effect and leakproofness, the toughness to flexible seals have very high requirement, existing flexible seals
Deformation effect and leakproofness, toughness it is not satisfactory.
Summary of the invention
In view of this, blocked the object of the present invention is to provide a kind of cable and preparation method thereof, the plugging tool being prepared
There are high flexibility and high-ductility performance, to have good deformation effect and leakproofness, and compression set is small, repeats
It uses.
The present invention solves above-mentioned technical problem by following technological means:
A kind of cable closure, the preparation of the closure include the raw material of following parts by weight: ethylene-vinyl acetate copolymer
150-200 parts, 80-90 parts of polypropylene, 10-20 parts of white oil, 100-150 parts of ethylene/alpha-olefin hydrocarbon block copolymer, whiting 10-
20 parts, 30-50 parts of calcium carbonate, 20-30 parts of active modification zinc oxide, 10-15 parts of vinyltrimethoxysilane, stearic acid 5-15
Part, 15-25 parts of dual-tert-butyl dicumyl peroxide, 5-10 parts of azodicarbonamide.
Further, the preparation of the closure includes the raw material of following parts by weight: 160 parts of ethylene-vinyl acetate copolymer gathers
80 parts of propylene, 15 parts of white oil, 120 parts of ethylene/alpha-olefin hydrocarbon block copolymer, 15 parts of whiting, 40 parts of calcium carbonate, active modification oxygen
Change 25 parts of zinc, 12 parts of vinyltrimethoxysilane, 7 parts of stearic acid, 20 parts of dual-tert-butyl dicumyl peroxide, azo two
8 parts of formamide.
Further, vinyl acetate content is 45-50% in the ethylene-vinyl acetate copolymer.
Further, the activation modification zinc oxide is using zinc oxide as internal layer, and latex is that latex-zinc oxide of outer layer is double-deck
Structure.
Further, the compression set that the cable blocks is less than or equal to 13.7%.
The invention also discloses the preparation methods that a kind of cable blocks:
Mixing: it takes in calcium carbonate investment high speed mixer, stirs to calcium carbonate dewatered drying, then in high speed mixer
It is pumped into vinyltrimethoxysilane by metering pump, is stirred, is stirred for that ethylene-vinyl acetate copolymer, polypropylene, second is added
Alkene/'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 70-80 DEG C of stirring 15min, then put into white oil, white
Chalk powder, active modification zinc oxide, stearic acid are warming up to 85-100 DEG C, and heat preservation 20-30min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=5-7, the homogenizing plasticizing 1-2h at a temperature of 130-140 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 100 DEG C -105 DEG C of barrel temperature, head extrusion
105 DEG C -110 DEG C of temperature, cable closure is obtained after cooling.
Further, in the homogenizing plasticizing process, mixed raw material pH=5.5-6.5 is adjusted, at a temperature of 130-132 DEG C
Change plasticizing 1h.
Further, the preparation step of the active modification zinc oxide is as follows:
(1) by zinc oxide and steel ball in argon atmosphere, the high-energy ball milling 2h under 8 DEG C of low temperature, ball milling speed 300rpm,
Ball material mass ratio is 5:1, the ammonia spirit of zinc oxide and 25wt% after ball milling heating water bath at 30 DEG C by weight 7:15,
It is taken out after stirring 15min with 300rpm, is then added in the citric acid solution of 5wt% and stirs 30min under conditions of 35 DEG C, so
After be warming up to 60 DEG C of stirring 10min, filtered, washed after the reaction was completed, obtain active oxidation zinc；
(2) styrene, acrylic acid, lauryl sodium sulfate are prepared into after emulsion and are heated to 60 DEG C, add over cure
Sour ammonium, butyl acrylate, alkyl phenol polyoxyethylene ether are warming up to 80 DEG C, after stirring 10min, adjust pH=8 with ammonium hydroxide and heat up
To 95 DEG C, continues stirring 1-2h and obtain latex solution；
(3) active oxidation zinc, latex solution, silane coupling agent are mixed, ultrasonic wave disperses 20min, then will be put into negative pressure
In case, pressure is -10Mpa, and temperature is 60 DEG C, and after keeping 1h, taking-up obtains activation after 80 DEG C of atmospheric pressure environment dry solidifications and changes
Property zinc oxide.
Further, styrene in the preparation step (2) of the active modification zinc oxide, acrylic acid, lauryl sodium sulfate,
Ammonium persulfate, butyl acrylate, alkyl phenol polyoxyethylene ether mass ratio be 30:10:5:7:40:8.
A kind of cable closure provided by the invention and preparation method thereof, its advantages are as follows:
One, ethylene/alpha-olefin hydrocarbon block copolymer has the property of plastic body and elastomer, can significantly improve compression forever
Long deformation performance and elastic recovery performance, while also with the heat resistance of high density polyethylene (HDPE), with ethylene-vinyl acetate copolymer
It is mixed with to obtain as major ingredient to block and there is high flexibility and high tenacity, vinyl acetate in ethylene-vinyl acetate copolymer
When content 45-50%, transparency, pliability and toughness opposite can be improved.Calcium carbonate is also added into raw material as filling
Agent plays reinforcing effect, and to the tearing strength and elasticity, the tensile strength effect of being significantly improved that cable blocks.Raw material
Middle addition active modification zinc oxide plays the role of larger in plasticizing homogenization stage, can play facilitation to the vulcanization of rubber,
Accelerate curingprocess rate, so that linear macromolecular structure is become bodily form macromolecular structure, enhance the toughness and flexibility of closure.
Two, zinc oxide has bigger serface and interfacial effect etc., so zinc oxide is easily produced because of the surface of high activity
Raw cohesion, clustering phenomena, it is not easy to disperse, influence flexibility, high tenacity and the curingprocess rate blocked, be unfavorable for the system blocked
It is standby.So external latex is prepared using raw materials such as styrene, butyl acrylates using latex-zinc oxide double-layer structure,
With certain hardness, it can be mutually mixed, be uniformly dispersed with raw material in mixing step, and in plasticizing homogenization stage and raw material
It merges into each other, improves the dispersibility of internal oxidation zinc in the feed.Zinc oxide is after high-energy ball milling, ammonium hydroxide, citric acid treatment
The active interface on surface increases, it is easier to be wrapped up by latex solution, using Negative pressure, latex solution is tightly wrapped in zinc oxide table
Face forms shell after solidification, forms double-layer structure with zinc oxide.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in detail:
Embodiment 1: active modification zinc oxide preparation one:
Active modification zinc oxide is prepared according to the following steps in the present embodiment:
(1) by 50g zinc oxide and 10g steel ball in argon atmosphere, high-energy ball milling 2h, ball milling speed are under 8 DEG C of low temperature
300rpm, the ammonia spirit of zinc oxide and 25wt% after ball milling heating water bath at 30 DEG C by weight 7:15, with 300rpm
It is taken out after stirring 15min, is then added in the citric acid solution of 5wt% and stirs 30min under 35 DEG C of water bath condition, then rise
Temperature is filtered after the reaction was completed, is washed, obtain active oxidation zinc to 60 DEG C of stirring 10min；
(2) ultrasonic agitation is prepared into emulsion after mixing 30g styrene, 10g acrylic acid, 5g lauryl sodium sulfate,
60 DEG C are then heated to, 7g ammonium persulfate, 40g butyl acrylate, 8g alkyl phenol polyoxyethylene ether is added and stirs evenly, then
80 DEG C are warming up to, is to stir 10min under the mechanical stirring of 300rpm in revolving speed, adjusts pH=8 with ammonium hydroxide and be warming up to 95 DEG C, after
Continuous stirring 1h obtains latex solution；
(3) active oxidation zinc, latex solution, 8g silane coupling agent are mixed, disperses 20min with the ultrasonic wave of 25KHz, then
It will be put into negative pressure box, being decompressed to pressure is -10Mpa, and temperature is 60 DEG C, after keeping 1h, is taken out, dry in 80 DEG C of atmospheric pressure environments
Solidification, obtains activation modification zinc oxide.
Embodiment 2: active modification zinc oxide preparation two:
Active modification zinc oxide is prepared according to the following steps in the present embodiment:
(1) by 50g zinc oxide and 10g steel ball in argon atmosphere, high-energy ball milling 2h, ball milling speed are under 8 DEG C of low temperature
300rpm, the ammonia spirit of zinc oxide and 30wt% after ball milling heating water bath at 30 DEG C by weight 7:15, with 300rpm
It is taken out after stirring 15min, is then added in the citric acid solution of 3wt% and stirs 30min under 35 DEG C of water bath condition, then rise
Temperature is filtered after the reaction was completed, is washed, obtain active oxidation zinc to 60 DEG C of stirring 10min；
(2) ultrasonic agitation is prepared into emulsion after mixing 30g styrene, 10g acrylic acid, 5g lauryl sodium sulfate,
60 DEG C are then heated to, 7g ammonium persulfate, 40g butyl acrylate, 8g alkyl phenol polyoxyethylene ether is added and stirs evenly, then
80 DEG C are warming up to, is to stir 10min under the mechanical stirring of 300rpm in revolving speed, adjusts pH=8 with ammonium hydroxide and be warming up to 95 DEG C, after
Continuous stirring 1h obtains latex solution；
(3) active oxidation zinc, latex solution, 8g silane coupling agent are mixed, disperses 20min with the ultrasonic wave of 25KHz, then
It will be put into negative pressure box, being decompressed to pressure is -8Mpa, and temperature is 60 DEG C, after keeping 1h, is taken out, dry in 80 DEG C of atmospheric pressure environments
Solidification, obtains activation modification zinc oxide.
Zinc oxide in above embodiments is all made of porous spherical zinc oxide, and porous spherical zinc oxide has good crystal
Structure is stablized in ultrasonic wave and condition of negative pressure flowering structure, is hardly damaged；Again because cellular is presented, so having bigger ratio table
Area increases the contact area with latex solution, and more conducively latex solution and zinc oxide is compound.
Embodiment 3: a kind of preparation one that cable blocks:
The present embodiment weighs raw material according to following parts by weight:
160 parts of ethylene-vinyl acetate copolymer, 80 parts of polypropylene, 15 parts of white oil, ethylene/alpha-olefin hydrocarbon block copolymer 120
25 parts of active modification zinc oxide, vinyltrimethoxysilane 12 prepared by part, 15 parts of whiting, 40 parts of calcium carbonate, embodiment 1
Part, 7 parts of stearic acid, 20 parts of dual-tert-butyl dicumyl peroxide, 8 parts of azodicarbonamide, ethylene-vinyl acetate copolymer
Middle vinyl acetate content is 45%.
Specific preparation process is as follows:
Mixing: calcium carbonate is put into high speed mixer, is stirred to calcium carbonate dewatered drying, then in high speed mixer
It is pumped into vinyltrimethoxysilane by metering pump, is stirred, is stirred for that ethylene-vinyl acetate copolymer, polypropylene, second is added
Alkene/'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 70 DEG C of stirring 15min, then put into white oil, chalk
Powder, active modification zinc oxide, stearic acid are warming up to 85 DEG C, and heat preservation 30min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=5.5, the homogenizing plasticizing 1h at a temperature of 130 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 100 DEG C DEG C of barrel temperature, head extrusion temperature
105 DEG C, cable closure is obtained after cooling.
Embodiment 4: a kind of preparation two that cable blocks:
The present embodiment weighs raw material according to following parts by weight:
160 parts of ethylene-vinyl acetate copolymer, 80 parts of polypropylene, 15 parts of white oil, ethylene/alpha-olefin hydrocarbon block copolymer 120
30 parts of active modification zinc oxide, vinyltrimethoxysilane 12 prepared by part, 15 parts of whiting, 40 parts of calcium carbonate, embodiment 1
Part, 7 parts of stearic acid, 20 parts of dual-tert-butyl dicumyl peroxide, 8 parts of azodicarbonamide, ethylene-vinyl acetate copolymer
Middle vinyl acetate content is 45%.
Specific preparation process is as follows:
Mixing: calcium carbonate is put into high speed mixer, is stirred to calcium carbonate dewatered drying, then in high speed mixer
It is pumped into vinyltrimethoxysilane by metering pump, is stirred, is stirred for that ethylene-vinyl acetate copolymer, polypropylene, second is added
Alkene/'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 70 DEG C of stirring 15min, then put into white oil, chalk
Powder, active modification zinc oxide, stearic acid are warming up to 85 DEG C, and heat preservation 30min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=5.5, the homogenizing plasticizing 1h at a temperature of 130 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 100 DEG C of barrel temperature, head extrusion temperature 105
DEG C, cable closure is obtained after cooling.
A kind of embodiment 5: preparation three that cable blocks
The present embodiment weighs raw material according to following parts by weight:
150 parts of ethylene-vinyl acetate copolymer, 90 parts of polypropylene, 10 parts of white oil, ethylene/alpha-olefin hydrocarbon block copolymer 100
20 parts of active modification zinc oxide, vinyltrimethoxysilane 10 prepared by part, 20 parts of whiting, 30 parts of calcium carbonate, embodiment 2
Part, 5 parts of stearic acid, 15 parts of dual-tert-butyl dicumyl peroxide, 10 parts of azodicarbonamide, ethene-vinyl acetate copolymerization
Vinyl acetate content is 50% in object.
Specific preparation process is as follows:
Mixing: calcium carbonate is put into high speed mixer, is stirred to calcium carbonate dewatered drying, then in high speed mixer
It is pumped into vinyltrimethoxysilane by metering pump, is stirred, is stirred for that ethylene-vinyl acetate copolymer, polypropylene, second is added
Alkene/'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 75 DEG C of stirring 15min, then put into white oil, chalk
Powder, active modification zinc oxide, stearic acid are warming up to 90 DEG C, and heat preservation 20min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=7, the homogenizing plasticizing 2h at a temperature of 135 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 103 DEG C of barrel temperature, head extrusion temperature 108
DEG C, cable closure is obtained after cooling.
A kind of embodiment 6: preparation three that cable blocks
The present embodiment weighs raw material according to following parts by weight:
200 parts of ethylene-vinyl acetate copolymer, 90 parts of polypropylene, 16 parts of white oil, ethylene/alpha-olefin hydrocarbon block copolymer 150
25 parts of active modification zinc oxide, vinyltrimethoxysilane 15 prepared by part, 10 parts of whiting, 50 parts of calcium carbonate, embodiment 2
Part, 15 parts of stearic acid, 25 parts of dual-tert-butyl dicumyl peroxide, 5 parts of azodicarbonamide, ethene-vinyl acetate copolymerization
Vinyl acetate content is 50% in object.
Specific preparation process is as follows:
Mixing: calcium carbonate is put into high speed mixer, is stirred to calcium carbonate dewatered drying, then in high speed mixer
It is pumped into vinyltrimethoxysilane by metering pump, is stirred, is stirred for that ethylene-vinyl acetate copolymer, polypropylene, second is added
Alkene/'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 80 DEG C of stirring 15min, then put into white oil, chalk
Powder, active modification zinc oxide, stearic acid are warming up to 100 DEG C, and heat preservation 20min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=6.5, the homogenizing plasticizing 1h at a temperature of 140 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 105 DEG C of barrel temperature, head extrusion temperature 110
DEG C, cable closure is obtained after cooling.
Embodiment 3 and embodiment 4 are comparative examples, set unitary variant for active modification oxidation Zinc supplementation, real
Apply 25 parts of 3 active modification zinc oxide of example, 30 parts of 4 active modification zinc oxide of embodiment；It is tested by GB/T7759.The envelope of experiment
It blocks up as 29 ± 0.5mm of Ф, the cylinder of high 12.5 ± 0.5mm, compression ratio selection 25%.Buckling is taken out in 23 DEG C × 72h off-test
Clamper takes out sample, after parking 30min in a free state, measures compression set to test block, test result is such as
Under:
| Embodiment | Compression set (maximum 30% is qualification) |
| Embodiment 3 | 13.7% |
| Embodiment 4 | 10.5% |
Above experimental data explanation, when active modification zinc oxide content is more, compression set is smaller, flexibility and
Toughness is more preferable, then it is higher to reuse number.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (9)
1. a kind of cable blocks, which is characterized in that the preparation of the closure includes the raw material of following parts by weight: ethyl vinyl acetate second
It is 150-200 parts of alkene copolymer, 80-90 parts of polypropylene, 10-20 parts of white oil, 100-150 parts of ethylene/alpha-olefin hydrocarbon block copolymer, white
10-20 parts of chalk powder, 30-50 parts of calcium carbonate, 20-30 parts of active modification zinc oxide, 10-15 parts of vinyltrimethoxysilane, ten
Eight 5-15 parts of acid, 15-25 parts of dual-tert-butyl dicumyl peroxide, 5-10 parts of azodicarbonamide.
2. a kind of cable according to claim 1 blocks, which is characterized in that the preparation of the closure includes following parts by weight
Raw material: 160 parts of ethylene-vinyl acetate copolymer, 80 parts of polypropylene, 15 parts of white oil, ethylene/alpha-olefin hydrocarbon block copolymer 120
Part, 15 parts of whiting, 40 parts of calcium carbonate, 25 parts of active modification zinc oxide, 12 parts of vinyltrimethoxysilane, 7 parts of stearic acid,
20 parts of dual-tert-butyl dicumyl peroxide, 8 parts of azodicarbonamide.
3. a kind of cable according to claim 2 blocks, which is characterized in that second in the ethylene-vinyl acetate copolymer
Vinyl acetate content is 45-50%.
4. a kind of cable according to claim 3 blocks, which is characterized in that the activation modification zinc oxide is with zinc oxide
For internal layer, latex is latex-zinc oxide double-layer structure of outer layer.
5. a kind of cable according to claim 1 to 4 blocks, which is characterized in that the compression that the cable blocks is permanent
It deforms less than and is equal to 13.7%.
6. the preparation method that a kind of cable according to claim 5 blocks, which is characterized in that it is described the preparation method is as follows:
Mixing: taking in calcium carbonate investment high speed mixer, and stirring is to calcium carbonate dewatered drying, then to passing through in high speed mixer
Metering pump is pumped into vinyltrimethoxysilane, stirring, be stirred for be added ethylene-vinyl acetate copolymer, polypropylene, ethylene/
'alpha '-olefin block copolymers, dual-tert-butyl dicumyl peroxide in 70-80 DEG C of stirring 15min, then put into white oil, chalk
Powder, active modification zinc oxide, stearic acid are warming up to 85-100 DEG C, and heat preservation 20-30min obtains mixed raw material；
Homogenizing plasticizing: adjusting mixed raw material pH=5-7, the homogenizing plasticizing 1-2h at a temperature of 130-140 DEG C；
Extrusion molding: the raw material after homogenizing is squeezed out through extruder, controls 100-105 DEG C of barrel temperature, head extrusion temperature 105
DEG C -110 DEG C, cable closure is obtained after cooling.
7. the preparation method that a kind of cable according to claim 6 blocks, which is characterized in that the homogenizing plasticizing process
In, mixed raw material pH=5.5-6.5 is adjusted, the homogenizing plasticizing 1h at a temperature of 130-132 DEG C.
8. the preparation method that a kind of cable according to claim 7 blocks, which is characterized in that the active modification zinc oxide
Preparation step it is as follows:
(1) by zinc oxide and steel ball in argon atmosphere, the high-energy ball milling 2h under 8 DEG C of low temperature, ball milling speed 300rpm, ball material
Mass ratio is 5:1, the ammonia spirit of zinc oxide and 25wt% after ball milling heating water bath at 30 DEG C by weight 7:15, with
It is taken out after 300rpm stirring 15min, is then added in the citric acid solution of 5wt% and stirs 30min under conditions of 35 DEG C, then
60 DEG C of stirring 10min are warming up to, filtered, washed after the reaction was completed, obtain active oxidation zinc；
(2) styrene, acrylic acid, lauryl sodium sulfate are prepared into after emulsion and are heated to 60 DEG C, add ammonium persulfate,
Butyl acrylate, alkyl phenol polyoxyethylene ether are warming up to 80 DEG C, after stirring 10min, adjust pH=8 with ammonium hydroxide and are warming up to 95
DEG C, continue stirring 1-2h and obtains latex solution；
(3) active oxidation zinc, latex solution, silane coupling agent being mixed, ultrasonic wave disperses 20min, then will be put into negative pressure box,
Pressure is -10Mpa, and temperature is 60 DEG C, and after keeping 1h, taking-up obtains activation modification oxidation after 80 DEG C of atmospheric pressure environment dry solidifications
Zinc.
9. the preparation method that a kind of cable according to claim 8 blocks, which is characterized in that the active modification zinc oxide
Preparation step (2) in styrene, acrylic acid, lauryl sodium sulfate, ammonium persulfate, butyl acrylate, alkyl phenol polyoxy second
The mass ratio of alkene ether is 30:10:5:7:40:8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056608.0A CN109320829A (en) | 2018-09-11 | 2018-09-11 | A kind of cable blocks and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056608.0A CN109320829A (en) | 2018-09-11 | 2018-09-11 | A kind of cable blocks and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109320829A true CN109320829A (en) | 2019-02-12 |
Family
ID=65264808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056608.0A Pending CN109320829A (en) | 2018-09-11 | 2018-09-11 | A kind of cable blocks and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109320829A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476949A (en) * | 2011-11-10 | 2012-05-30 | 中国科学院过程工程研究所 | Method for preparing electrical property-controllable zinc oxide (ZnO) piezoresistor material at low temperature |
| CN103259241A (en) * | 2013-06-08 | 2013-08-21 | 国家电网公司 | High-memorability and dismounting-free seal cover at electric pipeline connecting part, processing technology and special extrusion head |
| CN104004258A (en) * | 2013-02-22 | 2014-08-27 | 宋连官 | Low-smoke halogen-free flame-retardant ethylene-vinyl acetate copolymer resin |
| WO2015116232A1 (en) * | 2014-02-03 | 2015-08-06 | Benemilk Oy | Dietary compositions for ruminants and methods of making the same |
| CN106832551A (en) * | 2017-02-24 | 2017-06-13 | 东莞市特谱峰实业有限公司 | It is a kind of to have wear-resisting and flexibility composite rubber-plastic material concurrently |
| CN107151356A (en) * | 2016-03-03 | 2017-09-12 | 克赖布尔格Tpe有限责任两合公司 | The composition for thermoplastic elastomer being made up of elastomer, non-elastomeric polyolefin and polyolefin block copolymer analog thermoplastic elastomer |
-
2018
- 2018-09-11 CN CN201811056608.0A patent/CN109320829A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476949A (en) * | 2011-11-10 | 2012-05-30 | 中国科学院过程工程研究所 | Method for preparing electrical property-controllable zinc oxide (ZnO) piezoresistor material at low temperature |
| CN104004258A (en) * | 2013-02-22 | 2014-08-27 | 宋连官 | Low-smoke halogen-free flame-retardant ethylene-vinyl acetate copolymer resin |
| CN103259241A (en) * | 2013-06-08 | 2013-08-21 | 国家电网公司 | High-memorability and dismounting-free seal cover at electric pipeline connecting part, processing technology and special extrusion head |
| WO2015116232A1 (en) * | 2014-02-03 | 2015-08-06 | Benemilk Oy | Dietary compositions for ruminants and methods of making the same |
| CN107151356A (en) * | 2016-03-03 | 2017-09-12 | 克赖布尔格Tpe有限责任两合公司 | The composition for thermoplastic elastomer being made up of elastomer, non-elastomeric polyolefin and polyolefin block copolymer analog thermoplastic elastomer |
| CN106832551A (en) * | 2017-02-24 | 2017-06-13 | 东莞市特谱峰实业有限公司 | It is a kind of to have wear-resisting and flexibility composite rubber-plastic material concurrently |
Non-Patent Citations (6)
| Title |
|---|
| 中国环境科学学会编: "《中国环境保护优秀论文集 2005 下》", 30 June 2005, 中国环境科学出版社 * |
| 唐二军: "氧化锌/聚合物复合微粒材料的制备及抗菌特性研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 张锲主编: "《中国改革经纬录 第二分卷 科学技术文论专卷 上》", 31 October 1996, 经济日报出版社 * |
| 彭康珍主编: "《塑料建筑材料与树脂应用手册》", 30 June 1990, 广东科技出版社 * |
| 橡胶工业原材料与装备简明手册编审委员会编著: "《橡胶工业原材料与装备简明手册 2016年版》", 30 November 2016, 北京理工大学出版社 * |
| 韩文光主编: "《化工装置实用操作技术指南》", 31 October 2001, 化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106317530B (en) | A kind of heat resistant hydro-expansive rubber and preparation method thereof | |
| CN108410073A (en) | A kind of EP rubbers cold shrink tube and preparation method thereof | |
| CN104277258B (en) | A kind of preparation method of the water swelling rubber of good weatherability | |
| CN101974193B (en) | Method for preparing low-leaching-rate water-swellable rubbers | |
| CN113667043A (en) | High-elasticity acrylate grouting material and preparation method and application thereof | |
| CN107936387A (en) | A kind of cable cover(ing) for building of anti-aging heat-resistant fireproof and preparation method thereof | |
| CN109320829A (en) | A kind of cable blocks and preparation method thereof | |
| CN109054396A (en) | A kind of cable plugging material and preparation method thereof | |
| CN111410779A (en) | Preparation method of graphene oxide enhanced water-swelling rubber and water-swelling rubber | |
| CN108530767A (en) | Radiation-proof rubber waterstop and its preparation process | |
| CN104231975A (en) | Sealing adhesive tape material for third-generation nuclear power plant and preparation method of sealing adhesive tape material | |
| CN109135072A (en) | A kind of EPDM/ nitrile rubber and with weather-proof rubber and preparation method thereof | |
| CN108102160A (en) | A kind of steel side waterstop and preparation method thereof | |
| CN104650719A (en) | Sterilizing freezing-tolerance waterproof paint and preparation method thereof | |
| CN107196255A (en) | The diameter adjustable sealing structure and its encapsulating method of a kind of cable penetration or poling | |
| CN110423409A (en) | A kind of preparation method of dilatancy composite rubber water stop | |
| CN110655734A (en) | High-toughness impact-resistant polyvinyl chloride material and preparation method thereof | |
| CN107057424A (en) | A kind of high fire-retardance sterilization waterproof coating and preparation method | |
| CN104558705A (en) | Water-proofing water-swelling rubber formula | |
| CN105061909A (en) | Preparation method of oil and water-swelling rubber | |
| CN114672102A (en) | Hydrogen sulfide corrosion resistant rubber waterstop and preparation method thereof | |
| CN110484038A (en) | A kind of underground engineering polymer spray film water-proofing material and preparation method thereof | |
| CN105585744A (en) | Electric sealed waterproof electro-insulating rubber dough and preparation method thereof | |
| CN106566027A (en) | Seawater-corrosion-resistant cable material for submarine cable | |
| CN108443604A (en) | The connection method of concrete duct |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
|
| RJ01 | Rejection of invention patent application after publication |