CN108239321A - A kind of preparation method of bridge cable special sheath material - Google Patents
A kind of preparation method of bridge cable special sheath material Download PDFInfo
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- CN108239321A CN108239321A CN201611227256.1A CN201611227256A CN108239321A CN 108239321 A CN108239321 A CN 108239321A CN 201611227256 A CN201611227256 A CN 201611227256A CN 108239321 A CN108239321 A CN 108239321A
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- bridge cable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—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
- C08L23/06—Polyethene
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Insulated Conductors (AREA)
Abstract
The invention belongs to technical field of polymer materials, are related to a kind of bridge cable special sheath material and preparation method thereof.The bridge cable special sheath material in terms of parts by weight, prepares raw material and includes：50~80 parts of high density polyethylene (HDPE), 10~40 parts of low density polyethylene (LDPE), 5~10 parts of vinyltrimethoxysilane, 1.0~10 parts of Masterbatch, 0.5~1.0 part of antioxidant compound 0.5~1.0 part of ultra-violet absorber, compound 0.5~1.0 part of plastic modifier.Bridge cable of the present invention has excellent resisting environmental stress and cracking, ageing-resistant performance with protective cover material, and stability is good, and each index, which meets, firmly builds the requirements of ministerial standard CJ/T 297-2008.Bridge cable in the present invention is simple and easy to control with protective cover material preparation process, and raw material and equipment are all easy to get, very convenient large-scale industrial production.
Description
Technical field
The invention belongs to technical field of polymer materials, are related to a kind of bridge cable special sheath material and preparation method thereof.
Background technology
The funicular system of bridge is the main weighing structure of modern Longspan Bridge, service life and quality to bridge play to
Close important role.Funicular system bears load for a long time, and is exposed under natural environmental condition, empty by sunlight, sleet, pollution
The environmental activity of gas etc. subjects multiple destructive factors such as stress corrosion, fatigue corrosion and metal erosion, once its performance drops
It is low, bridge quality is influenced, consequence will be very serious.
The cable of bridge be usually be made of steel strand wires or steel wire rope with anchorage, be divided into according to structure it is several, but because of
Material is steel, easy aging corrosion, so being required for protective materials.When choosing protective materials, the environmental stress resistance of material
Cracking is a critically important performance, because under the corrosion such as light, heat, water, pollutant, sheath is easy to that performance change occurs,
So as to crack, protecting effect is influenced, reduces the service life of cable.For high-density polyethylene material because performance is stablized, intensity is tough
The advantages that property is good, is the preferred material as protective cover material.
The protective cover material of domestic production at present is mainly there are two problem, first, service life than relatively low, can not meet bridge cable
The requirement of 100 years of rope design service life；Second is that production and processing is difficult, material therefor is complicated, and of high cost, craftsmanship is poor.As in
State's number of patent application 201510533301.5 disclose a kind of bridge cable modified, weather resisting high density polyethylene (HDPE) protective cover material and its
Preparation method, with good physical mechanical property and environmental stress crack resistance energy, but production process is complicated, and selects
For ultra-high molecular weight polyethylene as basic material, processing difficulties are of high cost.
Invention content
In view of the foregoing deficiencies of prior art, it is a primary object of the present invention to provide a kind of bridge cable special shield
Jacking and preparation method thereof, for overcoming existing sheath material production process complicated, craftsmanship is poor, the shortcomings that waiting of high cost.
In order to achieve the above objects and other related objects, the present invention adopts the following technical scheme that：
The first aspect of the present invention provides a kind of bridge cable special sheath material, in terms of parts by weight, prepares raw material packet
It includes：50~80 parts of high density polyethylene (HDPE), 10~40 parts of low density polyethylene (LDPE), 5~10 parts of vinyltrimethoxysilane, Masterbatch
1.0~10 parts, 0.5~1.0 part of antioxidant compounds 0.5~1.0 part of ultra-violet absorber, compounds plastic modifier 0.5~1.0
Part.
Preferably, the density of the high density polyethylene (HDPE) is 0.945~0.960g/cm3, it is molten under 190 DEG C, 2.16kg
Melt index as 0.05~0.3g/10min.It is further preferred that the high density polyethylene (HDPE) is PE100 grades of polyethylene.The height
Density polyethylene can be obtained by approach purchased in market, be may be selected from but be not limited to, oil of SPC YGH041.
Preferably, the low density polyethylene (LDPE) is linear low density polyethylene, and density is 0.92~0.94g/cm3, 190
DEG C, the melt index under 2.16kg is 5~30g/10min, and elongation at break is more than 500%.The low density polyethylene (LDPE) can be with
It is obtained, may be selected from but is not limited to by approach purchased in market, Chinese Shenhua LLDPE8320.
Preferably, the Masterbatch appointing in black Masterbatch, white materbatch, Color master batch or anti-aging master batch
It is one or more.The Masterbatch can be obtained by approach purchased in market, such as, but not limited to, can be bought and be obtained from Clariant Corporation.
Preferably, the antioxidant is the compound antioxidant being made of antioxidant 1010 and antioxidant 168.It is preferred that
The weight ratio of ground, antioxidant 1010 and antioxidant 168 is (0.5~2)：1.
Preferably, compounding ultra-violet absorber is made of ultra-violet absorber 944 and ultra-violet absorber 326, ultraviolet light
The weight ratio of absorbent 944 and ultra-violet absorber 326 is (0.5~2)：1.
Preferably, compounding plastic modifier is made of polyethylene wax and antiseptic, the weight ratio of polyethylene wax and antiseptic
Example is 1：(0.5~2).Preferably, the melting temperature of the polyethylene wax is 90~120 DEG C, number-average molecular weight for 2000~
5000.The antiseptic is the PG antibacterial matrices of An Dimei.
The second aspect of the present invention provides the preparation method of aforementioned bridge cable special sheath material, including step：
(1) each raw material for preparing is uniformly dispersed by high mixer by proportioning；(2) by uniformly mixed raw material, double spiral shells are carried out
Bar extruding pelletization obtains bridge cable special sheath material.
Preferably, in step (2), 200~220 DEG C of extrusion temperature in double screw extruder, engine speed 400~
420rpm, feeding 20~27rpm of rotating speed, vacuum degree≤0.04kPa.
The third aspect of the present invention provides application of the aforementioned bridge cable special sheath material in bridge cable field.
Compared with prior art, the present invention has the advantages that：
Bridge cable of the present invention has excellent resisting environmental stress and cracking, ageing-resistant performance with protective cover material, and stability is good,
Each index, which meets, firmly builds the requirements of ministerial standard CJ/T 297-2008.Bridge cable in the present invention is simple with protective cover material preparation process
It is easily-controllable, and raw material and equipment are all easy to get, very convenient large-scale industrial production.
Specific embodiment
With reference to specific embodiment, the present invention is further explained, it should be appreciated that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that in the following example not specifically dated process equipment or device using conventional equipment in the art or
Device；All pressure values and range are all referring to relative pressure.
In addition, it should also be understood that, one or more method and step mentioned in the present invention does not repel before and after the combination step
Other methods step can also be inserted into there may also be other methods step or between the step of these are specifically mentioned, unless separately
It is described；It should also be understood that the combination connection relation between one or more equipment/device mentioned in the present invention is not repelled
The front and rear two equipment/devices specifically mentioned there may also be other equipment/device or at these of the unit equipment/device it
Between can also be inserted into other equipment/device, unless otherwise indicated.Moreover, unless otherwise indicated, the number of various method steps is only
Differentiate the convenient tool of various method steps rather than the ordering for limitation various method steps or the enforceable model of the restriction present invention
It encloses, relativeness is altered or modified, and in the case where changing technology contents without essence, when being also considered as, the present invention is enforceable
Scope.
Embodiment 1
The present embodiment Bridge cable special sheath material, in terms of parts by weight, prepares raw material and includes：High density polyethylene (HDPE)
70 parts, 25 parts of low density polyethylene (LDPE), 5 parts of vinyltrimethoxysilane, 2 parts of Masterbatch, 0.5 part of antioxidant, compounding ultraviolet light
0.8 part of absorbent compounds 1.0 parts of plastic modifier.Wherein, high density polyethylene (HDPE) is oil of SPC YGH041；Low density polyethylene
Alkene is China Shenhua LLDPE8320；Masterbatch is the black Masterbatch of Clariant Corporation；Antioxidant is by antioxidant 1010
The compound antioxidant formed with antioxidant 168, antioxidant are to be by the weight ratio of antioxidant 1010 and antioxidant 168
1:1；Compounding ultra-violet absorber is made of ultra-violet absorber 944 and ultra-violet absorber 326,944 He of ultra-violet absorber
The weight ratio of ultra-violet absorber 326 is 1：1；Compounding plastic modifier is made of polyethylene wax and antiseptic, polyethylene wax
Weight ratio with antiseptic is 1：1, the melting temperature of polyethylene wax is 90~120 DEG C, and number-average molecular weight is 2000~5000,
Antiseptic is the PG antibacterial matrices of An Dimei.
In the present embodiment, the preparation method of bridge cable special sheath material, including step：(1) by proportioning original is prepared by each
Material is uniformly dispersed by high mixer；(2) by uniformly mixed raw material, double-screw extruding pelletizing is carried out, it is special to obtain bridge cable
Protective cover material.Wherein, 200~220 DEG C of extrusion temperature in double screw extruder, 400~420rpm of engine speed, feeding rotating speed 20~
27rpm, vacuum degree≤0.04kPa.
Embodiment 2
The present embodiment Bridge cable special sheath material, in terms of parts by weight, prepares raw material and includes：High density polyethylene (HDPE)
50 parts, 40 parts of low density polyethylene (LDPE), 10 parts of vinyltrimethoxysilane, 1 part of Masterbatch, 0.5 part of antioxidant, compounding ultraviolet light
1.0 parts of absorbent compounds 0.5 part of plastic modifier.Wherein, the density of high density polyethylene (HDPE) is 0.945~0.960g/cm3,
190 DEG C, the melt index under 2.16kg is 0.05~0.3g/10min；The density of low density polyethylene (LDPE) is 0.92~0.94g/
cm3, the melt index under 190 DEG C, 2.16kg is 5~30g/10min, and elongation at break is more than 500%；Masterbatch is section's Lay
The white materbatch of benefactor department；Antioxidant is the compound antioxidant being made of antioxidant 1010 and antioxidant 168, antioxygen
Agent is is 2 by the weight ratio of antioxidant 1010 and antioxidant 168:1；Ultra-violet absorber is compounded by ultra-violet absorber
944 and ultra-violet absorber 326 form, the weight ratio of ultra-violet absorber 944 and ultra-violet absorber 326 is 0.5：1；It is multiple
It is made of with plastic modifier polyethylene wax and antiseptic, the weight ratio of polyethylene wax and antiseptic is 1：0.5, polyethylene wax
Melting temperature be 90~120 DEG C, number-average molecular weight be 2000~5000, antiseptic be An Dimei PG antibacterial matrices.
In the present embodiment, the preparation method of bridge cable special sheath material, including step：(1) by proportioning original is prepared by each
Material is uniformly dispersed by high mixer；(2) by uniformly mixed raw material, double-screw extruding pelletizing is carried out, it is special to obtain bridge cable
Protective cover material.Wherein, 200~220 DEG C of extrusion temperature in double screw extruder, 400~420rpm of engine speed, feeding rotating speed 20~
27rpm, vacuum degree≤0.04kPa.
Embodiment 3
The present embodiment Bridge cable special sheath material, in terms of parts by weight, prepares raw material and includes：High density polyethylene (HDPE)
80 parts, 10 parts of low density polyethylene (LDPE), 8 parts of vinyltrimethoxysilane, 10 parts of Masterbatch, 1.0 parts of antioxidant, compounding ultraviolet light
0.5 part of absorbent compounds 0.7 part of plastic modifier.Wherein, high density polyethylene (HDPE) is oil of SPC YGH041；Low density polyethylene
Alkene is China Shenhua LLDPE8320；Masterbatch is the anti-aging Masterbatch of Clariant Corporation；Antioxidant is by antioxidant
1010 and antioxidant 168 form compound antioxidant, antioxidant be by antioxidant 1010 and antioxidant 168 weight
Than being 0.5:1；Compounding ultra-violet absorber is made of ultra-violet absorber 944 and ultra-violet absorber 326, ultra-violet absorber
944 and ultra-violet absorber 326 weight ratio be 2：1；Compounding plastic modifier is made of polyethylene wax and antiseptic, poly- second
The weight ratio of alkene wax and antiseptic is 1：2, the melting temperature of polyethylene wax is 90~120 DEG C, number-average molecular weight for 2000~
5000, antiseptic is the PG antibacterial matrices of An Dimei.
In the present embodiment, the preparation method of bridge cable special sheath material, including step：(1) by proportioning original is prepared by each
Material is uniformly dispersed by high mixer；(2) by uniformly mixed raw material, double-screw extruding pelletizing is carried out, it is special to obtain bridge cable
Protective cover material.Wherein, 200~220 DEG C of extrusion temperature in double screw extruder, 400~420rpm of engine speed, feeding rotating speed 20~
27rpm, vacuum degree≤0.04kPa.
Embodiment 4
Bridge cable obtained by Examples 1 to 3 is required to test with protective cover material according to standard CJ/T 297-2008,
Its data list is as follows：
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Melting means (g/cm3) | 0.23 | 0.25 | 0.24 |
| Tensile break stress (MPa) | 32 | 34 | 33 |
| Stretching yield stress (MPa) | 27 | 30 | 29 |
| It is broken norminal strain (%) | 946 | 973 | 968 |
| Hardness | 54 | 56 | 55 |
| Tensile modulus of elasticity (MPa) | 675 | 680 | 677 |
| The modulus of elasticity in static bending (MPa) | 770 | 740 | 750 |
| Impact strength kJ/m2 | 43 | 45 | 44 |
| Resisting environmental stress and cracking F0 | 12528 | 131287 | 13009 |
| Heat-proof aging (%) | 1.4 | 1.7 | 1.5 |
| Resistance to fluorescent ultraviolet aging (%) | 1.6 | 2.4 | 2.0 |
| Resistance to ozone aging | Variation without exception | Variation without exception | Variation without exception |
So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of bridge cable special sheath material in terms of parts by weight, prepares raw material and includes：High density polyethylene (HDPE) 50~80
Part, 10~40 parts of low density polyethylene (LDPE), 5~10 parts of vinyltrimethoxysilane, 1.0~10 parts of Masterbatch, antioxidant 0.5~
1.0 parts, 0.5~1.0 part of ultra-violet absorber is compounded, compounds 0.5~1.0 part of plastic modifier.
2. bridge cable special sheath material according to claim 1, which is characterized in that the density of the high density polyethylene (HDPE)
For 0.945~0.960g/cm3, the melt index under 190 DEG C, 2.16kg is 0.05~0.3g/10min.
3. bridge cable special sheath material according to claim 1, which is characterized in that the low density polyethylene (LDPE) is linear
Low density polyethylene (LDPE), density are 0.92~0.94g/cm3, the melt index under 190 DEG C, 2.16kg is 5~30g/10min,
Elongation at break is more than 500%.
4. bridge cable special sheath material according to claim 1, which is characterized in that the Masterbatch is selected from black color masterbatch
Grain, white materbatch, Color master batch or anti-aging master batch any one or more of.
5. bridge cable special sheath material according to claim 1, which is characterized in that the antioxidant is by anti-oxidant
The weight ratio of the compound antioxidant that agent 1010 and antioxidant 168 form, antioxidant 1010 and antioxidant 168 is (0.5
~2)：1.
6. bridge cable special sheath material according to claim 1, which is characterized in that compounding ultra-violet absorber is by ultraviolet
Light absorbers 944 and ultra-violet absorber 326 form, and the weight ratio of ultra-violet absorber 944 and ultra-violet absorber 326 is
(0.5~2)：1.
7. bridge cable special sheath material according to claim 1, which is characterized in that compounding plastic modifier is by polyethylene
The weight ratio of wax and antiseptic composition, polyethylene wax and antiseptic is 1：(0.5~2).
8. bridge cable special sheath material according to claim 7, which is characterized in that the melting temperature of the polyethylene wax
It it is 90~120 DEG C, number-average molecular weight is 2000~5000.
9. the preparation method of bridge cable special sheath material as described in any one of claim 1~8, including step：(1) by proportioning
Each raw material for preparing is uniformly dispersed by high mixer；(2) by uniformly mixed raw material, double-screw extruding pelletizing is carried out, obtains bridge
Beam cable special sheath material.
10. bridge cable special sheath material is in the application in bridge cable field as described in any one of claim 1~8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611227256.1A CN108239321A (en) | 2016-12-27 | 2016-12-27 | A kind of preparation method of bridge cable special sheath material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611227256.1A CN108239321A (en) | 2016-12-27 | 2016-12-27 | A kind of preparation method of bridge cable special sheath material |
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| CN108239321A true CN108239321A (en) | 2018-07-03 |
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| CN201611227256.1A Pending CN108239321A (en) | 2016-12-27 | 2016-12-27 | A kind of preparation method of bridge cable special sheath material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112409672A (en) * | 2020-11-20 | 2021-02-26 | 中广核高新核材科技（苏州）有限公司 | Flame-retardant, crack-resistant and weather-resistant high-density polyethylene sheath material for stay cable and preparation method thereof |
| CN113462055A (en) * | 2021-06-29 | 2021-10-01 | 江阴爱科森博顿聚合体有限公司 | Sheath material for bridge stay cable and preparation method thereof |
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| CN101701093A (en) * | 2009-11-30 | 2010-05-05 | 苏州亨利通信材料有限公司 | Special color identification material for color polyolefin special optical cable |
| CN102532678A (en) * | 2011-12-27 | 2012-07-04 | 上海至正道化高分子材料有限公司 | Cable color sheath material and its preparation method |
| CN102719006A (en) * | 2012-07-12 | 2012-10-10 | 湖北科普达实业有限公司 | Colorful ultraviolet resistant polyethylene electric cable material |
| CN102775666A (en) * | 2012-07-05 | 2012-11-14 | 哈尔滨理工大学 | Full-medium self-supporting electric power optical cable high-density polyethylene jacket material and production method |
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2016
- 2016-12-27 CN CN201611227256.1A patent/CN108239321A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701093A (en) * | 2009-11-30 | 2010-05-05 | 苏州亨利通信材料有限公司 | Special color identification material for color polyolefin special optical cable |
| CN102532678A (en) * | 2011-12-27 | 2012-07-04 | 上海至正道化高分子材料有限公司 | Cable color sheath material and its preparation method |
| CN102775666A (en) * | 2012-07-05 | 2012-11-14 | 哈尔滨理工大学 | Full-medium self-supporting electric power optical cable high-density polyethylene jacket material and production method |
| CN102719006A (en) * | 2012-07-12 | 2012-10-10 | 湖北科普达实业有限公司 | Colorful ultraviolet resistant polyethylene electric cable material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112409672A (en) * | 2020-11-20 | 2021-02-26 | 中广核高新核材科技（苏州）有限公司 | Flame-retardant, crack-resistant and weather-resistant high-density polyethylene sheath material for stay cable and preparation method thereof |
| CN113462055A (en) * | 2021-06-29 | 2021-10-01 | 江阴爱科森博顿聚合体有限公司 | Sheath material for bridge stay cable and preparation method thereof |
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Application publication date: 20180703 |