CN105949746A - Preparation method for elastomer halogen-free flame retardant cable material - Google Patents
Preparation method for elastomer halogen-free flame retardant cable material Download PDFInfo
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- CN105949746A CN105949746A CN201610410826.4A CN201610410826A CN105949746A CN 105949746 A CN105949746 A CN 105949746A CN 201610410826 A CN201610410826 A CN 201610410826A CN 105949746 A CN105949746 A CN 105949746A
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- tpu
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- 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
Abstract
The invention discloses a preparation method for an elastomer halogen-free flame retardant cable material. The preparation method comprises the steps that firstly, organic rectorite and tetraisopropyl titanate are added into a high-speed mixer to be mixed, the mixture is added into a threaded rod extruder, TPU is added, and melt blending is carried out at the rotating speed of 400-600 r/min for 10-20 min, then, extruding and pilling are carried out, and a TPU/organic rectorite nano-composite material is obtained; secondly, after SEBS is dried, SEBS and the obtained TPU/organic rectorite nano-composite material are subjected to mixing, and rubber compounds are obtained; thirdly, the obtained rubber compounds, talcum powder, mica and carbon black are put into an internal mixer; fourthly, the mixture obtained after banburying is subjected to bi-cone shearing and conveyed to the threaded rod extruder to be extruded and processed. The defects in the prior art are overcome, and the comprehensive performance of oil resistance, heat resistance, softness, good resilience force, solvent resistance, cold resistance, low smoke and the like are achieved.
Description
Technical field
The present invention relates to cable external cladding material technical field, particularly belong to a kind of elastomer Halogen
The preparation method of fire-resistant cable material.
Background technology
Electric wire as the second largest industry of national economy, be widely used in all kinds of electric energy and
The transmission of signal.Compared with other material, halogen-free flame-retardant thermoplastic elastomer is owing to having proportion
Gently, easily processed into type, good comprehensive mechanical property and the feature such as electrical insulation capability is excellent,
Be all kinds of wire cable insulating and sheath preferred material.
Thermoplastic polyurethane (TPU) refers to be polymerized by diisocyanate, polyhydric alcohol and chain extender
A class elastomeric material, it has high intensity, high resiliency, wear-resisting, oil resistant, resistance to low
The features such as temperature.TPU can be divided into polyester and the big class of polyether-type two according to molecular structure, due to cable
Use environment more complicated, it is desirable to service life more than 10 years, and polyester-type TPU
High temperature anti-hydrolytic performance is poor, and its low-temperature flexibility performance is also not as good as polyether-type TPU, therefore at electricity
The TPU that line field of cables uses mostly is polyether-type.
All the time, the research of TPU fire resistance be that flexible cable material field is paid close attention to the most one
Individual problem.External Lu Borun, Hensel be graceful and there is respective board in the TPU such as BASF synthesis producer
Number the low smoke and zero halogen TPU CABLE MATERIALS meeting UL electric wire flame-retardancy requirements, domestic many CABLE MATERIALS
Manufacturer is proposed corresponding environmental protection flame retardant TPU and halogen-free flameproof TPU cable the most one after another
Material.Generally speaking, the combination property of domestic fire-retardant TPU flexible cable material is also far away from import
Product, but due to technical monopolization, the price of import fire-retardant TPU flexible cable material is always
High, this limits the application in its market at home, therefore, exploitation to a certain extent
The fire-retardant TPU elastic material that cost performance is higher is the task of top priority of current domestic CABLE MATERIALS manufacturer.
It addition, along with the release of new forms of energy policy, the industry such as wind-power electricity generation, electric automobile all processs hands can
Heat, the development of the electric wire matched therewith the most progressively launches, fire-retardant TPU elasticity electricity
The market of cable material will be opened further.
Common PVC Insulation Material there is also acid and alkali-resistance, heat resistant oils, and organic solvent resistance is poor
Etc. shortcoming, described specific environment easily occurs damaged and cracking.Thermoplastic polyurethane (TPU)
It is the organic polymer synthetic material of a kind of novel properties excellence, there is the physics of excellence
Performance, such as wearability, resilience force is all better than common PVC, and resistance to ag(e)ing is better than rubber,
Can be described as substituting the optimal material of PVC.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of elastomer halogen-free flame-retardant cable
Material preparation method, overcome the deficiencies in the prior art, reach oil resistant, heat-resisting, soft, return
The combination properties such as elastic force is good, solvent resistant, cold-resistant and low cigarette.
The technical solution used in the present invention is as follows:
A kind of preparation method of elastomer non-halogen flame-retardant cable, it is characterised in that: (1) will
Organic rectorite and tetraisopropyl titanate add in high-speed mixer, at 95-105 DEG C, with
The speed stirring mixing 22-28min of 500-600rpm, then will be through tetraisopropyl titanate coupling
Agent processed organic rectorite and put in the double extruder of screw rod, added TPU, and extruder melts
Duan Wendu controls at 110-130 DEG C, melt blending under the rotating speed of 400-600r/min
10-20min, then extruding pelletization, obtain TPU/ salt/organic rectorite nano composite material；
(2) with above-mentioned prepared TPU/ salt/organic rectorite nano composite material after SEBS being dried
Joining mixing 10-20min on mixing roll, temperature is 100-110 DEG C, obtains elastomeric compound；
(3) by above-mentioned prepared elastomeric compound and Pulvis Talci, Muscovitum, white carbon black, put in banbury,
Add precipitated silica after mixing 2-3min, antioxidant continues mixing 4-5min, is eventually adding
Plasticizer, fire retardant, lubricant, fineness are less than the 300 mixing 1-2min of silane coupler, close
Refining machine rotating speed 150-200r/min, temperature controls at 90-105 DEG C；
(4) through bipyramid shearing, the blended stock obtained after banburying is conveyed into screw extruder extrusion to add
Work, vulcanizes after extrusion on vulcanizing press, hot pressing 8-10min at 155-165 DEG C,
Room temperature is colded pressing 4-6min, sulfide stress 6-10MPa, and going out linear velocity is 12-15m/min.
Described raw material TPU110 part, SEBS35 part, organic rectorite 7 parts, metatitanic acid four are different
Propyl ester 2 parts, precipitated silica 20 parts, plasticizer 15 parts, 15 parts of Muscovitum, Pulvis Talci 5
Part, fire retardant 4 parts, lubricant 4 parts, 0.5 part of antioxidant, fineness are less than 300 silane occasionally
Connection agent 4 parts, white carbon black 5 parts.
Compared with the prior art, beneficial effects of the present invention is as follows:
In the present invention, the Muscovitum of use, aluminium hydroxide fire retardant, have environment-protecting asepsis, fire-retardant effect
Rate advantages of higher, its limited oxygen index also can be improved；Pulvis Talci, fineness are less than 300 mesh
The shortcoming that silica gel improves the most water-fast easy precipitation of general fire retardant, heatproof is low, by tired torr
TPU/ salt/organic rectorite nano composite material is prepared after stone is organically-modified and after TPU melt blending,
Rigidity and the non-deformability improving Insulation Material can be significantly improved, insulation can also be improved simultaneously
The heat-resistant air aging property of material and oil resistance.The Insulation Material that the present invention produces is not only
There are excellent mechanical and physical performance, insulating properties, and the most also there is good resistance to height
Warm nature, oil resistant, solvent resistant, wearability, resistance to ozone, the advantage such as ageing-resistant, durable in use,
Environment friendly and pollution-free, it is fully able to meet the requirement of modern electric wire.
Detailed description of the invention
The preparation method of a kind of elastomer non-halogen flame-retardant cable, it is by the raw material of following weight portion
Composition, described raw material TPU110 part, SEBS35 part, organic rectorite 7 parts, metatitanic acid four
Isopropyl ester 2 parts, precipitated silica 20 parts, plasticizer 15 parts, 15 parts of Muscovitum, Pulvis Talci
5 parts, fire retardant 4 parts, lubricant 4 parts, 0.5 part of antioxidant, fineness is less than 300 silane
Coupling agent 4 parts, white carbon black 5 parts.
The preparation method of the preparation method of a kind of elastomer non-halogen flame-retardant cable, (1) will have
Machine rectorite and tetraisopropyl titanate add in high-speed mixer, at 95-105 DEG C, with
The speed stirring mixing 22-28min of 500-600rpm, then will be through tetraisopropyl titanate coupling
Agent processed organic rectorite and put in the double extruder of screw rod, added TPU, and extruder melts
Duan Wendu controls at 110-130 DEG C, melt blending under the rotating speed of 400-600r/min
10-20min, then extruding pelletization, obtain TPU/ salt/organic rectorite nano composite material；
2) add with above-mentioned prepared TPU/ salt/organic rectorite nano composite material after SEBS being dried
Mixing 10-20min on mixing roll, temperature is 100-110 DEG C, obtains elastomeric compound；
(3) by above-mentioned prepared elastomeric compound and Pulvis Talci, Muscovitum, white carbon black, put in banbury,
Add precipitated silica after mixing 2-3min, antioxidant continues mixing 4-5min, is eventually adding
Plasticizer, fire retardant, lubricant, fineness are less than the 300 mixing 1-2min of silane coupler, close
Refining machine rotating speed 150-200r/min, temperature controls at 90-105 DEG C；
(4) blended stock obtained after banburying is conveyed into screw extruder extrusion processing through bipyramid shearing,
Vulcanize on vulcanizing press after extrusion, hot pressing 8-10min at 155-165 DEG C, often
Temperature is colded pressing 4-6min, sulfide stress 6-10MPa, and going out linear velocity is 12-15m/min.
The main performance index of the Insulation Material that the present invention produces is as follows:
1,25 DEG C time insulation resistance not less than 150M Ω/km.
2, finished cable stand exchange 50HZ3.5KV/5min voltage test do not puncture.
3, physical and mechanical properties is as follows:
1 tensile strength N/mm2 >=15.5
2 elongation at break % >=280
Aging rear tensile strength maximum rate of change % ± 25 of 3140 DEG C × 168h
Aging rear elongation at break maximum rate of change % ± 25 of 4140 DEG C × 168h
585 DEG C × 336h water absorption test mg/cm2≤1
6130 DEG C × 1h shrinkage test %≤3.5
7 fire resistances: meet A in GB/T19666, B, C level
8 low smoke performances: minimum light transmittance >=60%
9 Halogen performance requirements: PH weighted value >=4.3
The ultimate principle of the present invention, principal character and the present invention excellent has more than been shown and described
Point.Skilled person will appreciate that of the industry, the present invention is not restricted to the described embodiments, on
State the principle that the present invention is simply described described in embodiment and description, without departing from the present invention
On the premise of spirit and scope, the present invention also has various changes and modifications, and these change and change
Enter to both fall within scope of the claimed invention.Claimed scope is by appended power
Profit claim and equivalent thereof define.
Claims (2)
1. the preparation method of an elastomer non-halogen flame-retardant cable, it is characterised in that: (1)
Organic rectorite and tetraisopropyl titanate are added in high-speed mixer, at 95-105 DEG C, with
The speed stirring mixing 22-28min of 500-600rpm, then will be through tetraisopropyl titanate coupling
Agent processed organic rectorite and put in the double extruder of screw rod, added TPU, and extruder melts
Duan Wendu controls at 110-130 DEG C, melt blending under the rotating speed of 400-600r/min
10-20min, then extruding pelletization, obtain TPU/ salt/organic rectorite nano composite material；
(2) with above-mentioned prepared TPU/ salt/organic rectorite nano composite material after SEBS being dried
Joining mixing 10-20min on mixing roll, temperature is 100-110 DEG C, obtains elastomeric compound；
(3) by above-mentioned prepared elastomeric compound and Pulvis Talci, Muscovitum, white carbon black, put in banbury,
Add precipitated silica after mixing 2-3min, antioxidant continues mixing 4-5min, is eventually adding
Plasticizer, fire retardant, lubricant, fineness are less than the 300 mixing 1-2min of silane coupler, close
Refining machine rotating speed 150-200r/min, temperature controls at 90-105 DEG C；
(4) through bipyramid shearing, the blended stock obtained after banburying is conveyed into screw extruder extrusion to add
Work, vulcanizes after extrusion on vulcanizing press, hot pressing 8-10min at 155-165 DEG C,
Room temperature is colded pressing 4-6min, sulfide stress 6-10MPa, and going out linear velocity is 12-15m/min.
The preparation method of elastomer non-halogen flame-retardant cable the most according to claim 1,
It is characterized in that: described raw material TPU110 part, SEBS35 part, organic rectorite 7 parts,
Tetraisopropyl titanate 2 parts, precipitated silica 20 parts, plasticizer 15 parts, 15 parts of Muscovitum,
Pulvis Talci 5 parts, fire retardant 4 parts, lubricant 4 parts, 0.5 part of antioxidant, fineness are less than
300 silane couplers 4 parts, white carbon black 5 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410826.4A CN105949746A (en) | 2016-06-12 | 2016-06-12 | Preparation method for elastomer halogen-free flame retardant cable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410826.4A CN105949746A (en) | 2016-06-12 | 2016-06-12 | Preparation method for elastomer halogen-free flame retardant cable material |
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| Publication Number | Publication Date |
|---|---|
| CN105949746A true CN105949746A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410826.4A Pending CN105949746A (en) | 2016-06-12 | 2016-06-12 | Preparation method for elastomer halogen-free flame retardant cable material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070179236A1 (en) * | 2006-02-01 | 2007-08-02 | Landon Shayne J | Sealant composition having reduced permeability to gas |
| CN103122138A (en) * | 2013-01-22 | 2013-05-29 | 安徽华津电缆集团有限公司 | TPU/SEBS (thermoplastic polyurethane/styrene-ethylene-butadiene-styrene) thermoplastic elastomer insulation material for power cables and preparation method thereof |
| CN103122097A (en) * | 2013-01-22 | 2013-05-29 | 安徽华津电缆集团有限公司 | Thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables and preparation method thereof |
| CN104830013A (en) * | 2015-06-09 | 2015-08-12 | 中利科技集团股份有限公司 | Modified halogen-free flame-retardant thermoplastic elastomer cable material and production method thereof |
-
2016
- 2016-06-12 CN CN201610410826.4A patent/CN105949746A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070179236A1 (en) * | 2006-02-01 | 2007-08-02 | Landon Shayne J | Sealant composition having reduced permeability to gas |
| CN103122138A (en) * | 2013-01-22 | 2013-05-29 | 安徽华津电缆集团有限公司 | TPU/SEBS (thermoplastic polyurethane/styrene-ethylene-butadiene-styrene) thermoplastic elastomer insulation material for power cables and preparation method thereof |
| CN103122097A (en) * | 2013-01-22 | 2013-05-29 | 安徽华津电缆集团有限公司 | Thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables and preparation method thereof |
| CN104830013A (en) * | 2015-06-09 | 2015-08-12 | 中利科技集团股份有限公司 | Modified halogen-free flame-retardant thermoplastic elastomer cable material and production method thereof |
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Application publication date: 20160921 |
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