CN107304299B - A kind of fire retardant, flame-retardant pitch and preparation method thereof - Google Patents
A kind of fire retardant, flame-retardant pitch and preparation method thereof Download PDFInfo
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- CN107304299B CN107304299B CN201610249856.1A CN201610249856A CN107304299B CN 107304299 B CN107304299 B CN 107304299B CN 201610249856 A CN201610249856 A CN 201610249856A CN 107304299 B CN107304299 B CN 107304299B
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
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- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
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- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/50—Inorganic non-macromolecular ingredients
Abstract
The invention discloses a kind of fire retardants, flame-retardant pitch and preparation method thereof.The fire retardant includes the Amino End Group liquid rubber of montmorillonite and polyphosphoric acids grafting, and the Amino End Group liquid rubber of the polyphosphoric acids grafting is coated on the surface of the montmorillonite and is inserted into the piece interlayer of the montmorillonite.Dispersibility and uniformity of the montmorillonite particle in pitch, the performances such as water resistance, Rut resistance, thermo oxidative aging and anti-light oxygen aging for reducing the loading of fire retardant, while can also improving asphalt can be improved in the fire retardant.
Description
Technical field
The present invention relates to a kind of modified pitch and preparation method thereof, in particular to a kind of fire retardant, flame-retardant pitch and its system
Preparation Method.
Background technique
Pitch is had the characteristics that inflammable by the organic high molecular compound that carbon, hydrogen are that essential element forms.Pitch burning
Process, melt, drip first, trickling, followed by bead burning, trickling unrestrained by the bead that burns again, causing fire spreading
Expand.The burning of pitch is the chemical process of a heat release, decomposition, and hydrogen, methane, benzene and the easy combustion gas of alkanes are decomposited in burning
Body, the burning of these gases can further accelerate the thermal decomposition of pitch, especially in tunnel, once fire occurs, fire
Gesture extension is fast, range is wide, loss is big.The increase of vcehicular tunnel continued to bring out with tunnel traffic amount, the frequency that tunnel fire hazard occurs
Rate can be also gradually increased.Due to the closure in tunnel, once fire incident occurs, consequence is hardly imaginable.Tunnel fire hazard accident
Massive losses, cause people to the safety in tunnel and the very big concern of fire problem.These road surfaces need to have preferable
Flame retardant property, to guarantee safety.The research that tunnel fire hazard is prevented and treated is classified as important project by many countries, is tried hard to tunnel
The danger of road fire is bottomed out with loss.And the anti-flammability of pitch is improved, making flame-retardant pitch concrete road surface is current
Reduce one of Asphalt Pavement Fire casualties and the important measures of material damage in tunnel.
Common fire retardant has halogen system, phosphorus system, nitrogen system, antimonial class, boron compound class, magnesium compound class, calorize to close
Species etc..If Chinese patent CN101817936A discloses a kind of composite fire retardant used for asphalt mixture and preparation method thereof,
Wherein contain organic bromide fire retardant.Such organic fire-retardant (such as halogen contained compound) flame retardant effect is preferable, but it is in high temperature
When can discharge toxic irritative gas, this is proposed very high want not only for the production and construction of hot-mix asphalt mixture
It asks, and personnel health is also very unfavorable to construction personnel and in the future in operational process.Currently, fire retardant is just towards Halogen, low
The direction of malicious, low cigarette is developed.Wherein, metal hydroxides has fire-retardant, suppression cigarette, the secondary dirt of reduction as environment friendly flame retardant
The features such as dye, is widely used.However, there is also certain disadvantage when metal hydroxides is applied as fire retardant,
Such as additive amount is needed to show apparent flame retardant effect compared with Gao Caineng.
Montmorillonite is relatively chiefly used in the fire-retardant of the materials such as textile, nylon as a kind of common fire proofing.Specially such as China
Sharp CN103160949A discloses a kind of nano flame retardant nylon, and CN103266468A discloses a kind of Intumescent Retardant System to pure cotton
The flame-retardant finishing method of fabric.But due to the feature that pitch height glues, rheological property is poor, makes its poor compatibility with montmorillonite,
The dispersibility and uniformity for influencing montmorillonite, influence flame retardant effect.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of fire retardants, flame-retardant pitch and preparation method thereof.The present invention
Fire retardant can be improved dispersibility and uniformity of the montmorillonite in pitch, reduce the loading of fire retardant, while can also
Improve the performances such as water resistance, Rut resistance, thermo oxidative aging and the anti-light oxygen aging of asphalt.
The present invention provides a kind of fire retardant comprising the Amino End Group liquid rubber of montmorillonite and polyphosphoric acids grafting, it is described
The Amino End Group liquid rubber of polyphosphoric acids grafting is coated on the surface of the montmorillonite and is inserted into the piece interlayer of the montmorillonite.
In the fire retardant, the weight content of montmorillonite is 25%~55%.
Montmorillonite weight content in the montmorillonite is greater than 96%.
The montmorillonite partial size is 5 μm~20 μm.
The present invention also provides a kind of preparation methods of above-mentioned fire retardant, include the following steps:
(1) under conditions of 1000~1500r/min high-speed stirred, it is molten that montmorillonite is rapidly added polyphosphoric acids ethyl alcohol
Liquid continues stirring until few 20min, preferably 25min~60min, filtering；
(2) under room temperature, the acetone and/or toluene solution of Amino End Group liquid rubber is added in the filter cake that step (1) is obtained, and is added
It is stirred for 30min~80min after the completion of material, is filtered, it is dry, obtain fire retardant.
In the preparation method of fire retardant of the present invention, drying can be using conventional drying means, can at room temperature, can also be with
It is carried out under conditions of heating, acetone and/or toluene is made to volatilize.
In the preparation method of fire retardant of the present invention, the montmorillonite, polyphosphoric acids, Amino End Group liquid rubber weight ratio
For (20~45): (20~40): (35~55).
The degree of polymerization of the polyphosphoric acids is 2~1000, preferably 20~300.
The Amino End Group liquid rubber is amino terminated liquid nitrile rubber, Amino End Group liquid polybutadiene rubber, Amino End Group
One of polyisoprene rubber is a variety of.The molecular weight of the Amino End Group liquid rubber is 1000~10000, the end ammonia
Amino weight content in base fluid body rubber is 15%~25%.
The mass concentration of the polyphosphoric acids ethanol solution be 5%~15%, the acetone of the Amino End Group liquid rubber and/or
The mass concentration of toluene solution is 25%~50%.
Montmorillonite weight content in the montmorillonite is greater than 96%.
The montmorillonite partial size is 5 μm~20 μm
The present invention also provides a kind of flame-retardant pitch, which contains above-mentioned fire retardant.
The flame-retardant pitch includes: by weight
100 parts of basic asphalt；
0.01~5 part of crosslinking agent；
2~15 parts of fire retardant.
The crosslinking agent is elemental sulfur, hydrocarbyl polysulfide, thiurams, dithiocarbamate, sulfur-bearing oxazole, thiophene
One or more of Zole derivatives, sulphur donor vulcanization accelerator, non-sulphur donor vulcanization accelerator and peroxide.
In flame-retardant pitch of the present invention, basic asphalt can specifically be determined according to the requirement used, such as No. 70 pitches, No. 90 drips
Blueness etc..
The present invention also provides a kind of preparation methods of above-mentioned flame-retardant pitch, include the following steps: the fire retardant
Be added to crosslinking agent in 120 DEG C~160 DEG C of pitch, sheared at 3000~4000r/min with high-speed shearing machine 20min~
60min obtains the flame-retardant pitch.
Compared with prior art, advantages of the present invention is as follows:
1, the Amino End Group liquid rubber that montmorillonite surface cladding and piece Intercalation reaction polyphosphoric acids are grafted in the present invention, forms
A kind of hydrophobic sex flame retardant with nucleocapsid structure not only reduces the polarity of montmorillonite in this way, and poly is passed through in montmorillonite
After phosphoric acid and Amino End Group liquid rubber intercalation, interlamellar spacing can be significantly increased, and there are also be under the Amino End Group liquid rubber room temperature of grafting
Flow regime, molecular weight and pitch are close, and it is compatible to be easy to pitch, and under Amino End Group liquid rubber crosslinking action with pitch
Crosslinking, so that montmorillonite is uniformly dispersed in pitch under above-mentioned effect, improves, dispersion stabilization is mentioned with the compatibility of pitch
Height reduces the loading of fire retardant.If only montmorillonite and polyphosphoric acids, Amino End Group liquid rubber, crosslinking agent is simple
Physical mixed be applied in pitch, the poor compatibility due to the highly polar of montmorillonite surface and between pitch will be greatly reduced
The stability of modified pitch.
2, fire retardant of the invention can increase well the viscosity of pitch, to significantly improve the high temperature deformation energy of pitch
Power, while the brittle point temperature of pitch can be substantially reduced again, improve the resistance to low temperature of pitch.Fire retardant also improves asphalt
Water resistance, water resistant infringement performance, anti-rut behavior, the performances such as thermo oxidative aging and anti-light oxygen aging.
3, fire retardant of the invention has certain flame retardant property, after insertion and surface coat between montmorillonite layer, with
The Amino End Group liquid rubber mutual cooperation of polyphosphoric acids grafting, cooperative flame retardant, have good fire-retardant and smoke suppressing effect.The present invention
Flame-retardant pitch oxygen index (OI) is high, and when burning does not generate the toxic gases such as hydrogen halides, small to human respiratory tract and other organ damages.System
Standby simple process, produces pollution-free, lower production costs.
4, in the method for the present invention, the composition principle of organo-mineral complexing fire retardant be in the micron-scale montmorillonite surface package and
Piece Intercalation reaction polyphosphoric acids long-chain makes it introduce multiple acid hydroxy groups, adds Amino End Group liquid rubber and acid-base reaction occurs
Obtain surface coated organo-mineral complexing fire retardant.Its reaction mechanism:
5, in the method for the present invention, montmorillonite is activated in advance by first polyphosphoric acids, is on the one hand weakened significantly
The binding force of original interlayer, makes the interlayer lattice split, interlamellar spacing expands, to be conducive in piece interlayer polyphosphoric acids and end ammonia
The reaction of base fluid body rubber introduces more Amino End Group liquid rubbers in piece interlayer, supports montmorillonite layer greatly
It opens；Another aspect polyphosphoric acids can form core-shell structure copolymer knot on the surface of montmorillonite with Amino End Group liquid rubber graft reaction
The fire retardant of structure, and make fire retardant that there is lipophilicity, and significantly improve the anti-water damage property of bituminous pavement.
Specific embodiment
Now in conjunction with specific embodiment, the present invention will be described in detail, but is not so limited the present invention.
" the Amino End Group liquid rubber of polyphosphoric acids grafting " of the invention is to pre-process in polyphosphoric acids to montmorillonite
Afterwards, the polyphosphoric acids in pretreated montmorillonite carries out reacting shape with Amino End Group liquid rubber on montmorillonite surface and piece interlayer
At.
Embodiment 1
The preparation of fire retardant:
Wherein montmorillonite weight content is greater than 97% in montmorillonite, and partial size is 10 μm.The degree of polymerization of polyphosphoric acids is 100.
(1) under conditions of high-speed stirred (1000~1500r/min), it is molten that montmorillonite is rapidly added polyphosphoric acids ethyl alcohol
Liquid (mass concentration is 8 %), persistently stirs 20min, filters.
(2) under room temperature, by the acetone soln of the resulting filter cake addition amino terminated liquid nitrile rubber of step (1), (quality is dense
Degree filters, drying at room temperature obtains the fire retardant of particle to be stirred for 50min after the completion of charging in 35%).It is covered in fire retardant
The weight content for taking off soil is 30%.
Wherein, the parts by weight of fire retardant raw material are as follows:
Montmorillonite: 20 parts
Polyphosphoric acids: 25 parts
Amino terminated liquid nitrile rubber (amino weight content is 17%, molecular weight 5000): 55 parts.
Preparing for flame-retardant pitch is as follows:
The fire retardant of sulphur and above-mentioned preparation is added in 150 DEG C of 70# pitch, with high-speed shearing machine 3000~
30min is sheared under 4000r/min, obtains flame-retardant pitch.Wherein the weight ratio of sulphur, fire retardant and pitch is 0.05:1:10.
Embodiment 2
The preparation of fire retardant:
Wherein montmorillonite weight content is greater than 97% in montmorillonite, and partial size is 10 μm.The degree of polymerization of polyphosphoric acids is 100.
(1) under conditions of high-speed stirred (1000~1500r/min), it is molten that montmorillonite is rapidly added polyphosphoric acids ethyl alcohol
Liquid (mass concentration 10%), persistently stirs 20min, filtering.
(2) under room temperature, Amino End Group liquid polybutadiene rubber toluene solution (mass concentration is added in filter cake in step (1)
In 45%), it is stirred for 40min after the completion of charging, is filtered, drying at room temperature obtains fire retardant.The weight of montmorillonite in the fire retardant
Measuring content is 40%.
Wherein, the parts by weight of fire retardant raw material are as follows:
Montmorillonite: 30 parts
Polyphosphoric acids: 30 parts
Amino End Group liquid polybutadiene rubber (amino weight content 18%, molecular weight 7000): 45 parts.
Preparing for flame-retardant pitch is as follows:
The fire retardant of sulphur and above-mentioned preparation is added in 150 DEG C of 70# pitch, with high-speed shearing machine 3000~
30min is sheared under 4000r/min, obtains flame-retardant pitch.Wherein the weight ratio of sulphur, fire retardant and pitch is 0.1: 1.5:
10.0。
Embodiment 3
The preparation of fire retardant:
Wherein montmorillonite weight content is greater than 97% in montmorillonite, and partial size is 10 μm.The degree of polymerization of polyphosphoric acids is 100.
(1) under conditions of high-speed stirred (1000~1500r/min), it is molten that montmorillonite is rapidly added polyphosphoric acids ethyl alcohol
Liquid (mass concentration 12%), persistently stirs 20min, filtering.
(2) under room temperature, filter cake in step (1) is added to the toluene solution (mass concentration of Amino End Group polyisoprene rubber
In 48%), it is stirred for 60min after the completion of charging, is filtered, drying at room temperature obtains fire retardant.The weight of montmorillonite in the fire retardant
Measuring content is 36%.
Wherein, the parts by weight of fire retardant raw material are as follows:
Montmorillonite: 25 parts
Polyphosphoric acids: 35 parts
Amino End Group polyisoprene rubber (amino weight content 20%, molecular weight 6000): 40 parts.
Preparing for flame-retardant pitch is as follows:
The fire retardant of dithiocarbamate and above-mentioned preparation is added in 150 DEG C of 70# pitch, uses high speed shear
Machine shears 30min at 3000~4000r/min, obtains flame-retardant pitch.Wherein dithiocarbamate, fire retardant and pitch
Weight ratio be 0.2:1:10.
Comparative example 1
Montmorillonite and dithiocarbamate are added in 150 DEG C of pitch, with high-speed shearing machine 3000~
30min is sheared under 4000r/min, obtains flame-retardant pitch.Wherein the weight ratio of dithiocarbamate, montmorillonite and pitch is
0.2:1:10.
Comparative example 2
Aluminium hydroxide and dithiocarbamate are added in 150 DEG C of pitch, with high-speed shearing machine 3000~
30min is sheared under 4000r/min, obtains flame-retardant pitch.The wherein weight ratio of dithiocarbamate, aluminium hydroxide and pitch
For 0.2:1:10.
Comparative example 3
Dithiocarbamate, montmorillonite, polyphosphoric acids, Amino End Group liquid rubber are added in 150 DEG C of pitch,
30min is sheared at 3000~4000r/min with high-speed shearing machine, obtains flame-retardant pitch.Wherein dithiocarbamate, illiteracy
The weight ratio for taking off soil, polyphosphoric acids, amino terminated butadiene acrylonitrile rubber and pitch is 0.2:0.25:0.35:0.4:10.
The performance indicator of 1 flame-retardant pitch of table
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Needle penetration (25 DEG C), 1/10mm | 74 | 65 | 69 | 65 | 67 | 68 |
| Softening point, DEG C | 65.3 | 62.7 | 64.3 | 57.2 | 52.2 | 59.3 |
| Ductility (15 DEG C), cm | ≥150 | ≥150 | ≥150 | ≥150 | 138 | 125 |
| It isolates (163 DEG C, 48h), softening point difference, DEG C | 0.1 | 0.3 | 0.3 | 1.8 | 1.5 | 2.3 |
| Limit oxygen index, % | 33.4 | 35.1 | 32.2 | 15.2 | 16.1 | 18.1 |
As it can be seen from table 1 fire retardant of the invention can effectively improve the oxygen index (OI) of flame-retardant pitch.Using the present invention
The fire retardant for the nucleocapsid structure that method obtain after polyphosphoric acids and amino terminated butadiene acrylonitrile modified rubber to montmorillonite improves
Dispersibility and uniformity of the montmorillonite inorganic powder particle in pitch, reduces the loading of fire retardant.
The performance indicator of 2 antiflaming asphalt mixture of table
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| The raw material of mixture | ||||||
| Aggregate grading | AC-13 | AC-13 | AC-13 | AC-13 | AC-13 | AC-13 |
| Gather materials dosage, kg | 100 | 100 | 100 | 100 | 100 | 100 |
| Flame-retardant pitch dosage, kg | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Miberal powder dosage, kg | 5 | 5 | 5 | 5 | 5 | 5 |
| Performance test | ||||||
| Track dynamic stability, secondary/mm | 4032 | 4471 | 4386 | 2678 | 2801 | 2965 |
| Girder low-temperature bending failure strain, μ ε | 3012 | 2854 | 2989 | 2032 | 2134 | 2212 |
| Soak residual stability ratio, % | 92.5 | 90.5 | 90.9 | 83.0 | 84.2 | 85.3 |
| Freeze-thaw split retained strength ratio, % | 93.5 | 91.0 | 90.2 | 81.2 | 80.3 | 81.0 |
As known from Table 2, antiflaming asphalt mixture of the invention has excellent water resistant infringement performance, anti-rut behavior and low temperature
Performance.
Claims (18)
1. a kind of fire retardant, which is characterized in that it includes the Amino End Group liquid rubber of montmorillonite and polyphosphoric acids grafting, described more
The Amino End Group liquid rubber of polyphosphoric acid grafting is coated on the surface of the montmorillonite and is inserted into the piece interlayer of the montmorillonite；Institute
The Amino End Group liquid rubber for the polyphosphoric acids grafting stated is the pretreated illiteracy after polyphosphoric acids pre-processes montmorillonite
Polyphosphoric acids in de- soil carries out reacting formation with Amino End Group liquid rubber on montmorillonite surface and piece interlayer.
2. fire retardant according to claim 1, it is characterised in that: in the fire retardant, the weight content of montmorillonite is 25%
~55%.
3. fire retardant according to claim 1 or 2, it is characterised in that: montmorillonite weight content is greater than in the montmorillonite
96%。
4. fire retardant according to claim 1 or 2, it is characterised in that: the partial size of the montmorillonite is 5 μm~20 μm.
5. a kind of preparation method of fire retardant, it is characterised in that include the following steps:
(1) under conditions of 1000~1500r/min high-speed stirred, montmorillonite is rapidly added polyphosphoric acids ethanol solution, is held
Continuous stirring at least 20min, filtering；
(2) under room temperature, the acetone and/or toluene solution of Amino End Group liquid rubber is added in the filter cake that step (1) is obtained, and has been fed
It is stirred for 30min~80min after, filters, it is dry, obtain fire retardant.
6. preparation method according to claim 5, it is characterised in that: in step (1), montmorillonite is rapidly added poly phosphorus
Sour ethanol solution persistently stirs 25min~60min.
7. preparation method according to claim 5, it is characterised in that: the montmorillonite, polyphosphoric acids, Amino End Group liquid rubber
The weight ratio of glue is (20~45): (20~40): (35~55).
8. preparation method according to claim 5 or 6, it is characterised in that: the degree of polymerization of the polyphosphoric acids be 2~
1000。
9. preparation method according to claim 8, it is characterised in that: the degree of polymerization of the polyphosphoric acids is 20~300.
10. preparation method according to claim 5, it is characterised in that: the Amino End Group liquid rubber is Amino End Group liquid
One of nitrile rubber, Amino End Group liquid polybutadiene rubber and Amino End Group polyisoprene rubber are a variety of.
11. the preparation method according to claim 5 or 8, it is characterised in that: the molecular weight of the Amino End Group liquid rubber is
1000~10000, the amino weight content in the Amino End Group liquid rubber is 15%~25%.
12. preparation method according to claim 5 or 6, it is characterised in that: the quality of the polyphosphoric acids ethanol solution is dense
Degree is 5%~15%, and the acetone of the Amino End Group liquid rubber and/or the mass concentration of toluene solution are 25%~50%.
13. preparation method according to claim 5 or 6, it is characterised in that: montmorillonite weight content is big in the montmorillonite
In 96%.
14. preparation method according to claim 5 or 6, it is characterised in that: the partial size of the montmorillonite is 5 μm~20 μm.
15. a kind of flame-retardant pitch, it is characterised in that: the flame-retardant pitch contains fire-retardant as described in any in claim 1-14
Agent.
16. flame-retardant pitch according to claim 15, it is characterised in that: the flame-retardant pitch includes: by weight
100 parts of basic asphalt；
0.01~5 part of crosslinking agent；
2~15 parts of fire retardant as described in any in claim 1-14.
17. flame-retardant pitch according to claim 16, it is characterised in that: the crosslinking agent is the mostly vulcanization of elemental sulfur, alkyl
Object, thiurams, dithiocarbamate, sulfur-bearing oxazole, thiazole, sulphur donor vulcanization accelerator, non-sulphur donor sulphur
Change one or more of promotor and peroxide.
18. a kind of preparation method of the flame-retardant pitch as described in any in claim 16 or 17, it is characterised in that including as follows
Step: the fire retardant and crosslinking agent being added in 120 DEG C~160 DEG C of pitch, with high-speed shearing machine 3000~
20min~60min is sheared under 4000r/min, obtains the flame-retardant pitch.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724414A (en) * | 2009-12-30 | 2010-06-09 | 江西固康新材料有限公司 | Nano fire-retarding additive and preparation method thereof |
| CN101817936A (en) * | 2009-02-27 | 2010-09-01 | 长沙理工大学 | Composite fire retardant used for asphalt mixture and preparation method thereof |
| CN105153468A (en) * | 2015-10-11 | 2015-12-16 | 台州学院 | Phosphorus-nitrogen-silicon compound loaded montmorillonite flame retardant and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817936A (en) * | 2009-02-27 | 2010-09-01 | 长沙理工大学 | Composite fire retardant used for asphalt mixture and preparation method thereof |
| CN101724414A (en) * | 2009-12-30 | 2010-06-09 | 江西固康新材料有限公司 | Nano fire-retarding additive and preparation method thereof |
| CN105153468A (en) * | 2015-10-11 | 2015-12-16 | 台州学院 | Phosphorus-nitrogen-silicon compound loaded montmorillonite flame retardant and preparation method thereof |
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|---|---|
| CN107304299A (en) | 2017-10-31 |
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