CN106147048A - Sealing compositions and application thereof - Google Patents
Sealing compositions and application thereof Download PDFInfo
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- CN106147048A CN106147048A CN201510146586.7A CN201510146586A CN106147048A CN 106147048 A CN106147048 A CN 106147048A CN 201510146586 A CN201510146586 A CN 201510146586A CN 106147048 A CN106147048 A CN 106147048A
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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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- 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)
- Sealing Material Composition (AREA)
Abstract
The present invention provides a kind of sealing compositions and application thereof.Described sealing compositions comprises one or more solid-state polyisobutylene；One or more plasticizers；With one or more adsorbable reinforcing materials, wherein gross weight based on described sealing compositions, the content of one or more solid-state polyisobutylene described is 8-80 weight %, the content of one or more plasticizers described is 2-70 weight %, and the content of one or more adsorbable reinforcing materials described is 11-80 weight %.Described sealing compositions has high water proofing property.
Description
Technical field
The present invention relates to a kind of sealing compositions and application thereof.
Background technology
In communication or power domain, there is the biggest problem in the waterproof of 8 shaped leather covered optical cables always.8
Shaped leather covered optical cable is different from circular optical cable, has irregular shape, thin in covered wire cable appearance
Small gap often seeps water.In actual application, 8 shaped leather covered optical cables are usually placed in moistureproof anti-
Water requires that higher working environment is the most buried, in people's well or wet environment, and the most general sealing
Material and structure are all difficult to meet requirement.
Have the compound of some self-adhesives, predominantly butyl rubber and liquid polyisobutene in the market
Material, and other unvulcanized rubber such as natural rubber etc. and liquid operation oil and the composite of filler.
These self-adhesives can occur a certain degree of adhesion with optical cable under installing pressure.But, due to this
Butyl rubber, natural rubber and other unvulcanized rubber in a little self-adhesives all comprise and are similar to isoamyl
The segment that diene etc. are the most weak, the sealing property of this self-adhesive is not enough, causes leaking, finally affects
Communication or the use of power product.
Accordingly, it would be desirable to exploitation has sealing compositions or the encapsulant of high water proofing property.
Summary of the invention
It is an object of the invention to provide a kind of sealing compositions with high water proofing property and application thereof.
To this end, one aspect of the present invention provides a kind of sealing compositions, it comprises: one or more
Solid-state polyisobutylene；One or more plasticizers；One or more adsorbable reinforcing materials, Qi Zhongji
In the gross weight of described sealing compositions, the content of one or more solid-state polyisobutylene described is 8-80
Weight %, the content of one or more plasticizers described is 2-70 weight %, and described one or many
The content planting adsorbable reinforcing material is 11-80 weight %.
According to some embodiment of the disclosure, the content of one or more solid-state polyisobutylene described is
10-50 weight %, the content of one or more plasticizers described is 8-50 weight %, and described one
Plant or the content of multiple adsorbable reinforcing material is 15-75 weight %.
According to some embodiment of the disclosure, one or more adsorbable reinforcing materials described include choosing
At least one in the group of free the following composition: white carbon black, calcium carbonate, silicon dioxide, stratiform silicon
Hydrochlorate, Talcum, Muscovitum, wollastonite, potter's clay, ceramic whiskers, metal whisker and they
Combination.
According to some embodiment of the disclosure, one or more plasticizers described include below choosing freely
At least one in the group of every composition: liquid polyisobutylene, liquid paraffin, naphthenic oil, aromatic oil
And combinations thereof.
According to some embodiment of the disclosure, one or more plasticizers described are the viscosity of 100 DEG C
For 2cst-30,000cst.
According to some embodiment of the disclosure, one or more plasticizers wherein said are divided equally selected from number
Son amount is the liquid polyisobutylene of 200-20,000.
According to some embodiment of the disclosure, described sealing compositions also comprises no more than 35 weight %
One or more resilience modifiers, one or more resilience modifiers described choosing is freely the most following
The group of item composition: natural rubber (NR), nitrile rubber (NBR), hydrogenated nitrile-butadiene rubber (HNBR), benzene
Ethylene-butadiene rubber (SBR), butadiene rubber, isoprene rubber, acrylate rubber, second the third rubber
Glue, fluorubber, silicone rubber, chlorosulfonated polyethylene, chlorinated polyethylene and combinations thereof.
According to some embodiment of the disclosure, described sealing compositions also comprises the free the following of choosing
At least one in the group of composition: fire retardant, viscosifier, toner and combinations thereof.
According to some embodiment of the disclosure, the number of one or more solid-state polyisobutylene described is divided equally
Son amount is 50,000-1,500,000.
According to some embodiment of the disclosure, described fire retardant includes selecting free the following to form
At least one in group: aluminium hydroxide, magnesium hydroxide, phosphorus system, nitrogen system, silicon system or halogen containing flame-retardant,
Antimony oxide and combinations thereof.
According to some embodiment of the disclosure, described viscosifier include selecting free the following to form
At least one in group: terpene resin, Petropols, rosin resin, phenolic resin and they
Combination.
According to some embodiment of the disclosure, gross weight based on described sealing compositions, described resistance
The content of combustion agent is not more than 55 weight %.
According to some embodiment of the disclosure, gross weight based on described sealing compositions, described increasing
The content of stick is not more than 40 weight %.
Another aspect of the present invention provides above-mentioned sealing compositions for sealing the application of cable.
Beneficial effect
According to the present invention it is possible to provide a kind of sealing compositions with high water proofing property.Additionally, according to
The sealing compositions of the present invention there is practicality needed for installation capability and reopen performance.
Detailed description of the invention
The sealing compositions of the present invention comprises one or more solid-state polyisobutylene；One or more plasticising
Agent；One or more adsorbable reinforcing materials, wherein gross weight based on described sealing compositions, institute
The content stating one or more solid-state polyisobutylene is 8-80 weight %, one or more plasticizers described
Content be 2-70 weight %, and the content of one or more adsorbable reinforcing materials described is 11-80
Weight %.
Each component of sealing compositions according to the present invention is described below in detail.
(1) solid-state polyisobutylene
Solid-state polyisobutylene is the necessary component of the compositions of the present invention, and at room temperature should be solid
State.
The compositions of the present invention can comprise one or more solid-state polyisobutylene.Solid-state polyisobutylene is composed
Give the impenetrability that the compositions of the present invention is excellent.
Solid-state polyisobutylene is generally of more than 50, the number-average molecular weight of 000, preferably
50,000-1,500,000, more preferably 60,000-1,000,000, most preferably 73,000-600,000.
Solid-state polyisobutylene is commercially available, and the example include BASF Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200.
Gross weight based on compositions, the content of one or more solid-state polyisobutylene is usually 8-80
Weight %.When the content of solid-state polyisobutylene is less than 8 weight %, the water proofing property of compositions is not enough.
When the content of solid-state polyisobutylene is higher than 80 weight %, the processing characteristics of compositions is not enough.Described one
Kind or multiple solid-state polyisobutylene be preferably 10-50 weight %, more preferably 10-40 weight %, and also
More preferably 15-35 weight %.
(2) plasticizer
Plasticizer is the necessary component of the compositions of the present invention.Plasticizer have the good property of softening and
Make compositions mobility more preferable.
The compositions of the present invention can comprise one or more plasticizers.
One or more plasticizers described are 2cst-30,000cst, preferably 2cst-the viscosity of 100 DEG C
10,000cst, more preferably 2cst-6,000cst.
One or more plasticizers described include at least one in the group selecting free the following to form:
Liquid polyisobutylene, liquid paraffin, naphthenic oil, aromatic oil and combinations thereof, preferably liquid are poly-
Isobutene., liquid paraffin and combinations thereof, particularly preferred liquid polyisobutylene.
Liquid polyisobutylene in the present invention should be at room temperature liquid, therefore relative to solid-state
Polyisobutylene has lower molecular weight.The number-average molecular weight of liquid polyisobutylene is usually
200-20,000, preferably 200-10,000, more preferably 200-5,000.
Plasticizer is commercially available, and the example includes the PB 2400 of great Lin company of Korea S, Suzhou
The liquid paraffin etc. of Sai Pahan specialty oil company limited.
Gross weight based on compositions, the content of one or more plasticizers is 2-70 weight %.Work as increasing
When moulding the content of agent less than 2 weight %, compositions is really up to the mark, causes processing characteristics not enough.Work as plasticizer
Content higher than 70 weight % time, compositions is the softest, causes processing and serviceability not enough.Plasticizer
Content be preferably 8-50 weight %, more preferably 10-40 weight %, still more preferably 15-30 weight
Amount %.
(3) adsorbable reinforcing material
Adsorbable reinforcing material is the necessary component of the compositions of the present invention.The compositions of the present invention is permissible
Comprise one or more adsorbable reinforcing materials.
Adsorbable reinforcing material in the present invention is specific.The reason selecting it is adsorbable increasing
Strong material can occur physics and chemistry with solid-state polyisobutylene or solid-state polyisobutylene and rubber
Interact thus give the intensity that compositions is enough.In other words, use in the present invention is adsorbable
Reinforcing material is that one has can be adsorbed in compositions with chemical mode for physically on surface
Solid-state polyisobutylene and rubber (when it is present) on the reinforcing material of avtive spot.
One or more adsorbable reinforcing materials described include selecting in the group that free the following forms
At least one: white carbon black, calcium carbonate, silicon dioxide (such as fumed silica, sedimentation method titanium dioxide
Silicon), phyllosilicate, Talcum, Muscovitum, wollastonite, potter's clay, ceramic whiskers, metal whisker,
And combinations thereof, preferably white carbon black, calcium carbonate and combinations thereof.
Adsorbable reinforcing material is commercially available, and the example includes the N550 of Cabot, and
The super-fine active calcium carbide of Kunshan Jin Kaidi Chemical Co., Ltd..
Gross weight based on compositions, the content of adsorbable reinforcing material is usually 11-80 weight %.
When the content of adsorbable reinforcing material is less than 11 weight %, the water proofing property of compositions is not enough.When inhaling
When the content of attached reinforcing material is higher than 80 weight %, the processing characteristics of compositions is the best, although it has
Enough water proofing properties.The content of adsorbable reinforcing material is preferably 15-75 weight %, preferably 30-75
Weight %, more preferably 45-70 weight %.
(4) other components
The compositions of the present invention can also comprise other components, and such as, one or more resiliences are improved
Agent, fire retardant, viscosifier, toner and combinations thereof.
The compositions of the present invention preferably comprises one or more resilience modifiers to improve compositions
Elasticity and mechanical strength.The group of one or more resilience modifiers choosing free the following composition: sky
So rubber (NR), nitrile rubber (NBR), hydrogenated nitrile-butadiene rubber (HNBR), styrene-butadiene rubber
Glue (SBR), butadiene rubber, isoprene rubber, acrylate rubber, EP rubbers, fluorubber, silicon
Rubber, chlorosulfonated polyethylene, chlorinated polyethylene and combinations thereof, preferably natural rubber (NR),
Nitrile rubber (NBR), SBR styrene butadiene rubbers (SBR) and combinations thereof.Described resilience
Modifying agent does not the most include butyl rubber.It is used alone butyl rubber can damage as resilience modifier
The effect of the present invention.
Gross weight based on compositions, the content of one or more resilience modifiers is no more than 35
Weight %, preferably 1-25 weight %, more preferably 3-15%.
The compositions of the present invention preferably comprises fire retardant to give compositions anti-flammability.Described fire retardant bag
Include select free the following form group at least one: aluminium hydroxide, magnesium hydroxide, phosphorus system,
Nitrogen system, silicon system or halogen containing flame-retardant, antimony oxide and combinations thereof.
Gross weight based on compositions, the content of fire retardant is typically no more than 55 weight %, is preferably
30-55 weight %.
The compositions of the present invention preferably comprises viscosifier with can by reduce that viscosity improves compositions
Usability.Described viscosifier include at least one in the group selecting free the following to form: terpenes tree
Fat, Petropols, rosin resin, phenolic resin and combinations thereof.
Gross weight based on compositions, the content of viscosifier is typically no more than 40 weight %, is preferably
It is not more than 20 weight %, more preferably not more than 10 weight %.
The compositions of the present invention can also comprise toner.In the present compositions, if used
White carbon black is as adsorbable reinforcing material, then it can also play a part toner.Other of toner
Example may include that Fe2O3, Cinnabaris, laterite, Realgar, peacock green, alkermes, natural fish
Scale, Resina garciniae, alizarin red, indigo-blue, titanium white, Griffith's zinc white., lead chromate yellow, barba hispanica, red, even
Yellowish, phthalocyanine blue, quinacridone, and combinations thereof.
The compositions of the present invention can be prepared by: the first several components of blend compositions, so
After add remaining component and mix.Alternatively, the compositions of the present invention can also be by by all groups
Divide and be simultaneously introduced and mix and prepare.
The compositions of the present invention can be prepared as having variously-shaped such as the goods of strip.Such as, this
Bright compositions can be prepared as bar by extruder.
The compositions of the present invention has the water proofing property of excellence, therefore may be used for seal applications, such as, uses
In cable seal.
Embodiment
Hereinafter will be specifically described the present invention by using embodiment.But, the invention is not restricted to
These embodiments or be to be restricted to such embodiments.Unless otherwise noted, hundred in embodiment and comparative example
Proportion by subtraction, content and ratio are by weight.
The material used in embodiment and comparative example is as shown in following table.
Embodiment
Embodiment 1
To prepare compositions with the formula shown in table 1.Use natural rubber 3# smoke sheet rubber as resilience
Property modifier, use Oppanol B200 as solid-state polyisobutylene, use 104LEO fire retardant
As fire retardant, use N550 as adsorbable reinforcing material, use PIB2400 as plasticizer
And use TP2040 as viscosifier.First, by 3# smoke sheet rubber and Oppanol B200 with table 1
Shown in amount mix 5-10 minute, then with shown in table 1 amount add 104LEO fire retardant,
N550, PIB2400 and TP2040 and mix 5-10 minute to obtain compositions.
Embodiment 2-14 and comparative example 1-12
Preparing compositions in the same manner as example 1, difference is, as shown in table 1
Change the amount of each component in compositions.
Embodiment 15
Preparing compositions in the same manner as example 1, difference is, does not uses any time
The amount of each component in elastic modifier and as shown in table 1 change compositions.
Embodiment 16-18
Preparing compositions in the same manner as example 1, difference is, does not uses any time
The amount of each component in elastic modifier, fire retardant and viscosifier and as shown in table 1 change compositions.
Comparative example 13
Preparing compositions in the same manner as example 1, difference is, does not uses any solid
The amount of each component in state polyisobutylene and as shown in table 1 change compositions.
Embodiment 19-23
Preparing compositions in the same manner as example 1, difference is, changes solid-state and gathers different
The molecular weight of butylene or type and change the amount of each component in compositions as shown in table 1.
Embodiment 24-25
Preparing compositions in the same manner as example 1, difference is, changes back to elasticity and changes
Enter the type of agent and change the amount of each component in compositions as shown in table 1.
Embodiment 26
Preparing compositions in the same manner as example 1, difference is, use N550 and
The mixture of super-fine active calcium carbide is as adsorbable reinforcing material and changes compositions as shown in table 1
In the amount of each component.
Comparative example 14
Preparing compositions in the same manner as example 1, difference is, does not uses any increasing
Mould agent and change the amount of each component in compositions as shown in table 1.
Embodiment 27
Preparing compositions in the same manner as example 1, difference is, uses liquid paraffin
As the amount of each component in plasticizer and change compositions as shown in table 1.
Embodiment 28
Preparing compositions in the same manner as example 1, difference is, uses 3# smoke sheet rubber
With the mixture of NBR 3445F as resilience modifier, use Oppanol B30, Oppanol
B50, Oppanol B80, Oppanol B100, Oppanol B150 and Oppanol B200's is mixed
Compound is as shown in table 1 as the amount of component each in solid-state polyisobutylene and compositions.
Embodiment 29
Preparing compositions in the same manner as example 1, difference is, uses 3# smoke sheet rubber
With the mixture of SBR as resilience modifier, use Oppanol B30, Oppanol B50,
The mixture of Oppanol B80, Oppanol B150 and Oppanol B200 as solid-state polyisobutylene,
Use the mixture of N550 and super-fine active calcium carbide as adsorbable reinforcing material, use PIB2400
With the mixture of liquid paraffin as plasticizer, and change each component in compositions as shown in table 1
Amount.
Embodiment 30
Preparing compositions in the same way as in example 2, difference is, use 3# smoke sheet rubber,
The mixture of NBR 3445F and SBR as resilience modifier, use Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200
Mixture as solid-state polyisobutylene, use N550 and the mixture conduct of super-fine active calcium carbide
Adsorbable reinforcing material, use the mixture of PIB2400 and liquid paraffin as plasticizer, and such as table
The amount of each component in compositions is changed shown in 1.
Embodiment 31
Preparing compositions in the same way as in example 2, difference is, use 3# smoke sheet rubber,
With the mixture of NBR 3445F as resilience modifier, use Oppanol B30, Oppanol
B50, Oppanol B80, Oppanol B100, Oppanol B150 and Oppanol B200's is mixed
Compound, as solid-state polyisobutylene, uses the mixture of N550 and super-fine active calcium carbide as inhaling
Attached reinforcing material, and change the amount of each component in compositions as shown in table 1.
Embodiment 32
Preparing compositions in the way of same as in Example 3, difference is, uses 3# smoke sheet rubber
With the mixture of SBR as resilience modifier, use Oppanol B30, Oppanol B100,
The mixture of Oppanol B150 and Oppanol B200 is as solid-state polyisobutylene, and as in table 1
The amount of each component in shown change compositions.
Embodiment 33
Preparing compositions in the way of same as in Example 3, difference is, use 3# smoke sheet rubber,
The mixture of NBR 3445F and SBR as resilience modifier, use Oppanol B30,
The mixture of Oppanol B100, Oppanol B150 and Oppanol B200 as solid-state polyisobutylene,
And change the amount of each component in compositions as shown in table 1.
Embodiment 34-35
Preparing compositions in the way of the same as in Example 4, difference is, use 3# smoke sheet rubber,
The mixture of NBR 3445F and SBR as resilience modifier, use Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200
Mixture as solid-state polyisobutylene, use N550 and the mixture conduct of super-fine active calcium carbide
Adsorbable reinforcing material, use the mixture of PIB2400 and liquid paraffin as plasticizer, and such as table
The amount of each component in compositions is changed shown in 1.
Embodiment 36
Preparing compositions in the way of same as in Example 5, difference is, use 3# smoke sheet rubber,
The mixture of NBR 3445F and SBR as resilience modifier, use Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200
Mixture as solid-state polyisobutylene, and change the amount of each component in compositions as shown in table 1.
Embodiment 37
Preparing compositions in the same manner as in example 6, difference is, use 3# smoke sheet rubber,
The mixture of NBR 3445F and SBR as resilience modifier, use Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200
Mixture as solid-state polyisobutylene, and change the amount of each component in compositions as shown in table 1.
Embodiment 38
Preparing compositions in the way of identical with embodiment 13, difference is, uses 3# smoked sheet
Glue, NBR 3445F and SBR mixture as resilience modifier, use Oppanol B30,
Oppanol B50, Oppanol B80, Oppanol B 100, Oppanol B 150 and Oppanol B200
Mixture as solid-state polyisobutylene, and change the amount of each component in compositions as shown in table 1.
Embodiment 39-40
Preparing compositions in the same manner as example 1, difference is, uses liquid paraffin
As plasticizer, and change the amount of each component in compositions as shown in table 1.
Performance test methods
(1) water proofing property
The sealing compositions of preparation in embodiment and comparative example is wound around many 8 font rubber-insulated wire light
On cable, and the autohension of sealing compositions is utilized to be bonded together by many 8 shaped leather covered optical cables,
And make the covered wire cable of bonding through seal box, seal box is placed in 1 meter of deep water holding 15
Minute.Afterwards, open seal box, check inside seal box with or without infiltration.Penetrate into without water,
Then this sealing compositions is be evaluated as by test, otherwise, then this sealing compositions is be evaluated as not leading to
Cross test.
Test result is as shown in Table 2 below.
Table 2
| Numbering | Water proofing property |
| Embodiment 1 | Pass through |
| Embodiment 2 | Pass through |
| Embodiment 3 | Pass through |
| Embodiment 4 | Pass through |
| Comparative example 1 | Do not pass through |
| Comparative example 2 | Do not pass through |
| Comparative example 3 | Do not pass through |
| Comparative example 4 | Do not pass through |
| Comparative example 5 | Do not pass through |
| Comparative example 6 | Do not pass through |
| Comparative example 7 | Do not pass through |
| Comparative example 8 | Do not pass through |
| Comparative example 9 | Do not pass through |
| Comparative example 10 | Do not pass through |
| Comparative example 11 | Do not pass through |
| Embodiment 5 | Pass through |
| Embodiment 6 | Pass through |
| Embodiment 7 | Pass through |
| Embodiment 8 | Pass through |
| Embodiment 9 | Pass through |
| Embodiment 10 | Pass through |
| Embodiment 11 | Pass through |
| Embodiment 12 | Pass through |
| Comparative example 12 | Do not pass through |
| Embodiment 13 | Pass through |
| Embodiment 14 | Pass through |
| Embodiment 15 | Pass through |
| Embodiment 16 | Pass through |
| Embodiment 17 | Pass through |
| Embodiment 18 | Pass through |
| Comparative example 13 | Do not pass through |
| Embodiment 19 | Pass through |
| Embodiment 20 | Pass through |
| Embodiment 21 | Pass through |
| Embodiment 22 | Pass through |
| Embodiment 23 | Pass through |
| Embodiment 24 | Pass through |
| Embodiment 25 | Pass through |
| Embodiment 26 | Pass through |
| Comparative example 14 | Do not pass through |
| Embodiment 27 | Pass through |
| Embodiment 28 | Pass through |
| Embodiment 29 | Pass through |
| Embodiment 30 | Pass through |
| Embodiment 31 | Pass through |
| Embodiment 32 | Pass through |
| Embodiment 33 | Pass through |
| Embodiment 34 | Pass through |
| Embodiment 35 | Pass through |
| Embodiment 36 | Pass through |
| Embodiment 37 | Pass through |
| Embodiment 38 | Pass through |
| Embodiment 39 | Pass through |
| Embodiment 40 | Pass through |
As shown in table 2, compositions prepared by all embodiments, all by waterproofing tests, shows
The compositions of the present invention has high water proofing property.But, for comparative example 1-11, due to adsorbable increasing
The amount of strong material is outside the scope of the present invention, and therefore a combination thereof thing is not over waterproofing tests.Right
In comparative example 12, owing to the amount of solid-state polyisobutylene is outside the scope of the present invention, therefore a combination thereof thing
Not over waterproofing tests.For comparative example 13, owing to a combination thereof thing is without solid-state polyisobutylene,
Therefore not over waterproofing tests.For comparative example 14, due to a combination thereof thing not plasticizer-containing, because of
This is not over waterproofing tests.
In actual applications, encapsulant is the most also required to have certain installation capability so that pacifying
Dress operation.Additionally, generally also require that encapsulant has certain to reopen performance to occur
Line fault, the when of needing the problems such as maintaining cables, it is simple to attended operation.Therefore, to according to this
Installation capability that the compositions of invention is required in practicality and reopen performance and be tested.Install
Performance is as follows with the method for testing reopening performance.
(2) installation capability
The sealing compositions of preparation in embodiment and comparative example is wound around many 8 font rubber-insulated wire light
On cable, clutch with hands so that sealing compositions can be filled into rapidly covered wire cable outer surface, including skin
In the minute recesses of linear light cable outer surface.Because of the characteristic (mobility, autohension etc.) of sealing compositions,
Sealing compositions can fill rapidly the most irregular fine gap so that around cable and seal structure
This sealing compositions can be full of between part gap and housing.Treat that every covered wire cable has all twined sealing group
After compound, they are filled in receiving covered wire cable and the structure of sealing compositions so that be tied with sealing group
The optical cable of compound can be well fixed in this structure.By in this Standard to the seal box of coupling.
Complete seal box the sealing of this optical cable is assembled.In installation process, if sealing compositions is easy to be bonded in
On rubber insulated cable, unloading pressure (after i.e. loosing one's grip) without resilience, then evaluate the installation capability of sealing compositions
For well；If sealing sealing compositions have certain resilience after unloading pressure, then evaluate sealing compositions
Installation capability be general.
(3) performance is reopened
The sealing compositions of preparation in embodiment and comparative example is wound around many 8 font rubber-insulated wire light
On cable, and the autohension of sealing compositions is utilized to be bonded together by many 8 shaped leather covered optical cables,
And make the covered wire cable of bonding through seal box.After assembling seal box, reopen seal box,
The sealing structure accommodating sealing compositions and covered wire cable is taken out from seal box, opens this sealing
Structure, peels off the sealing compositions being wrapped on optical cable from optical cable, the characteristic of this sealing compositions
Make it easy to be peeled away from optical cable by this sealing compositions with hands.In stripping process, if close
Envelope compositions can free-hand stripping and noresidue on cable, then evaluate the reopening property of sealing compositions
Can be good；Otherwise, then the performance that reopens evaluating sealing compositions is general.
Table 3
| Numbering | Installation capability | Reopen performance |
| Embodiment 1 | Well | Typically |
| Embodiment 2 | Well | Well |
| Embodiment 3 | Typically | Well |
| Embodiment 4 | Well | Typically |
| Embodiment 5 | Typically | Typically |
| Embodiment 6 | Typically | Typically |
| Embodiment 7 | Typically | Well |
| Embodiment 8 | Typically | Well |
| Embodiment 9 | Typically | Well |
| Embodiment 10 | Typically | Typically |
| Embodiment 11 | Typically | Typically |
| Embodiment 12 | Typically | Typically |
| Embodiment 13 | Typically | Typically |
| Embodiment 14 | Typically | Typically |
| Embodiment 15 | Typically | Typically |
| Embodiment 16 | Typically | Typically |
| Embodiment 17 | Typically | Typically |
| Embodiment 18 | Typically | Typically |
| Embodiment 19 | Well | Well |
| Embodiment 20 | Well | Well |
| Embodiment 21 | Well | Well |
| Embodiment 22 | Well | Well |
| Embodiment 23 | Well | Well |
| Embodiment 24 | Typically | Typically |
| Embodiment 25 | Typically | Typically |
| Embodiment 26 | Well | Well |
| Embodiment 27 | Typically | Well |
| Embodiment 28 | Well | Typically |
| Embodiment 29 | Well | Typically |
| Embodiment 30 | Well | Well |
| Embodiment 31 | Well | Well |
| Embodiment 32 | Typically | Well |
| Embodiment 33 | Typically | Well |
| Embodiment 34 | Well | Typically |
| Embodiment 35 | Well | Typically |
| Embodiment 36 | Typically | Typically |
| Embodiment 37 | Typically | Typically |
| Embodiment 38 | Typically | Typically |
| Embodiment 39 | Typically | Well |
| Embodiment 40 | Well | Typically |
As shown in table 3, according to the sealing compositions of the present invention, there is the installation capability needed for practicality and weight
Newly opening performance, this is very favorable for the actual application of the present composition.
Should be appreciated that exemplary as herein described should be considered to be illustrative rather than limit
Property processed.And, should by each embodiment about each feature or in terms of description be applicable to other
Other similar characteristics in embodiment or aspect.
Notwithstanding one or more embodiments of the present invention, those of ordinary skill in the art should
Understand, in the case of without departing from the spirit and scope of the present invention defined by the following claims,
The change of various forms and details can be made.
Claims (14)
1. a sealing compositions, it comprises:
One or more solid-state polyisobutylene；
One or more plasticizers；
One or more adsorbable reinforcing materials,
Wherein gross weight based on described sealing compositions, one or more solid-state polyisobutylene described
Content is 8-80 weight %, and the content of one or more plasticizers described is 2-70 weight %, and institute
The content stating one or more adsorbable reinforcing materials is 11-80 weight %.
Sealing compositions the most according to claim 1, one or more solid-states wherein said are gathered different
The content of butylene is 10-50 weight %, and the content of one or more plasticizers described is 8-50 weight %,
And the content of one or more adsorbable reinforcing materials described is 15-75 weight %.
Sealing compositions the most according to claim 1, one or more adsorbable increasings wherein said
Strong material includes at least one in the group selecting free the following to form: white carbon black, calcium carbonate, dioxy
SiClx, phyllosilicate, Talcum, Muscovitum, wollastonite, potter's clay, ceramic whiskers, metal whisker,
And combinations thereof.
Sealing compositions the most according to claim 1, one or more plasticizer bags wherein said
Include select free the following form group at least one: liquid polyisobutylene, liquid paraffin, ring
Alkane oil, aromatic oil and combinations thereof.
Sealing compositions the most according to claim 1, one or more plasticizers wherein said exist
The viscosity of 100 DEG C is 2cst-30,000cst.
Sealing compositions the most according to claim 4, one or more plasticizers wherein said select
From the liquid polyisobutylene that number-average molecular weight is 200-20,000.
Sealing compositions the most according to claim 1, described sealing compositions also comprises no more than
One or more resilience modifiers of 35 weight %, one or more resilience modifiers described are selected from
The group being made up of the following: natural rubber (NR), nitrile rubber (NBR), hydrogenated nitrile-butadiene rubber
(HNBR), SBR styrene butadiene rubbers (SBR), butadiene rubber, isoprene rubber, acrylate rubber
Glue, EP rubbers, fluorubber, silicone rubber, chlorosulfonated polyethylene, chlorinated polyethylene and they
Combination.
8., according to the sealing compositions described in claim 1 or 7, described sealing compositions also comprises choosing
Free the following composition group at least one: fire retardant, viscosifier, toner and they
Combination.
Sealing compositions the most according to claim 1, one or more solid-states wherein said are gathered different
The number-average molecular weight of butylene is 50,000-1,500,000.
Sealing compositions the most according to claim 8, wherein said fire retardant includes that choosing is freely
At least one in the group of the following composition: aluminium hydroxide, magnesium hydroxide, phosphorus system, nitrogen system, silicon
System or halogen containing flame-retardant, antimony oxide and combinations thereof.
11. sealing compositions according to claim 8, wherein said viscosifier include that choosing is freely
At least one in the group of the following composition: terpene resin, Petropols, rosin resin, phenolic aldehyde
Resin and combinations thereof.
12. sealing compositions according to claim 8, wherein based on described sealing compositions
Gross weight, the content of described fire retardant is not more than 55 weight %.
13. sealing compositions according to claim 8, wherein based on described sealing compositions
Gross weight, the content of described viscosifier is not more than 40 weight %.
14. are used for sealing cable according to the sealing compositions according to any one of claim 1 to 13
Application.
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| CN202110469521.1A CN113234289A (en) | 2015-03-31 | 2015-03-31 | Sealing composition and use thereof |
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| CN108822362A (en) * | 2018-05-29 | 2018-11-16 | 芜湖瑞德机械科技有限公司 | Corrosion-resistant sealing ring and preparation method thereof |
| CN108690235A (en) * | 2018-05-29 | 2018-10-23 | 芜湖瑞德机械科技有限公司 | A kind of corrosion-resistant sealing ring and preparation method thereof |
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