CN107619571A - A kind of polystyrene b polyisoprene/tackifying resin compounded rubber particle and its preparation method and application - Google Patents
A kind of polystyrene b polyisoprene/tackifying resin compounded rubber particle and its preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of polystyrene b polyisoprene/tackifying resin compounded rubber particle and its preparation method and application, compounded rubber particle includes polystyrene b polyisoprene and tackifying resin component；Its preparation method is that polystyrene b polyisoprene colloidal sols are prepared in anionic polymerisation system, and tackifying resin is added in the colloidal sol, after dissolving mixing, cohesion, desolvation and granulation is passed sequentially through, produces；Compounded rubber particle not cold flow, adhesion at room temperature, good self-adhesion is embodied in the presence of rubber oil, tackifying resin compounded rubber particle Gao Lazhi, high softening-point asphalt modification in embody there is preferable adhesive property and high- and low-temperature resistance performance with sandstone and concrete face, water-tolerant simultaneously, also there is higher ductility, the application of high cured matter pitch is expanded.
Description
Technical field
The present invention relates to a kind of polystyrene-b- polyisoprene/tackifying resin compounded rubber particle, and the compound rubber
The preparation method of micelle, more particularly to polystyrene-b- polyisoprene/tackifying resin compounded rubber particle viscosify modified
Building asphalt material, belong to Polymer Synthesizing and modified pitch field.
Background technology
Many changes occur for highroad and road, it is desirable to improve road surface resistance to flow, i.e., the ability of Rut resistance under high temperature；
Improve flexible and elastic, the ability of cracking resistance under low temperature；Improve abrasion performance ability and increase the service life.Modern building is universal
Using large-span prestressed roof boarding, it is desirable to roof waterpoof material adapts to big displacement, more tolerant to harsh high/low temperature weather conditions,
Durability is more preferable, has tack, convenient construction, reduces maintenance load.These changes that use environment occurs are to asphalt
Performance propose stern challenge.
At present, mainly asphalt is modified, adapts it to the harsh requirement of the above.Occur various in style
Modified pavement asphalt, waterproof roll, show certain Practical effect.Modified asphalt waterproof coiled material and coating are mainly used
In the waterproofing work of top-grade building thing.The kind and technology of preparing of modified pitch depend on type, addition and the base of modifying agent
The composition and property of matter pitch (i.e. material asphalt).Because modifying agent is various in style, come in every shape, in order that itself and asphalt
Formation uniformly is available for the material that engineering uses, and have rated all kinds modifying agent for many years, and develop corresponding formula with
Preparation method.
Such as be generally used for adding 3-5%SBS in 70# or 90# pitches in the prior art and pitch is modified, can be with
The softening point and ductility of original matrix pitch are improved, to meet the needs of road asphalt.As (" discussed the hair of polymer modified asphalt
Open up direction " Shen Jinan,《Highway communication science and technology》, the 1st phase in 1998) in introduce the classification of road modified asphalt, standard, selection former
Then, from its cost and performance, recommend to manufacture side of the SBS modified pitch as China's development modified pitch at the construction field (site)
To.Modified pitch is had been commercialized with elastomeric material as Ba Ling petro-chemical corporations of China Petrochemical Corporation can be selected in modified pitch
YH-791H, road changes 1#, road changes the SBS elastomers of multiple brands such as 2#.In addition, (" no tire base self-adhering polymer is modified drip
Blue or green waterproofing membrane production technical study ", revival, Zhou Shengping,《Chinese architecture waterproof》, the 12nd phase in 2012) in SBS and PSBR
For modified pitch, pass through the research to molding mode, formula and covering material etc., it is proposed that polymerize beneficial to without tire base self-adhesion
The production technology of thing modified asphalt waterproof coiled material flatness, the problem of common during such waterproofing membrane production is analyzed, and
Propose solution.In recent years, SBS and PSBR is modified 70# or 90# pitches and industrialized for self-adhesive waterproof web,
But material and waterproof roll industry are changed at present also for road to the pitch of low ductility, the building petroleum asphalt of high softening-point and Gao Lazhi
Have no and report for work.
Traditional 70#, 90# pitch has the features such as needle penetration, softening point are suitable, and ductility is high, and cured content is less than 3%, extensively
It is general to be used for the industries such as road and waterproof roll.Pitch wax content height can reduce the caking property and plasticity of asphalt, while to temperature
It is poor to spend stability, the presence of wax in pitch, in high temperature pitch can be made easily to feel like jelly, causes bituminous paving high-temperature stability to drop
It is low, there is rut；Equally, in low temperature pitch can be made to become brittle, causes road surface low-temperature cracking-resistance to reduce, slight crack occur.This
Outside, wax can make the reduction of the adhesiveness of pitch and building stones, in the presence of water, road surface stone can be made to produce peeling phenomenon, caused
Pavement destruction, more seriously, wax containing asphalt can reduce the skid resistance of bituminous paving, influence the traffic safety on road surface, the content of wax
Measure that high pitch is low compared with label pitch with paraffin content, the high asphalt softening point rise of paraffin content, ductility reduces, and pitch mixes
It is less able to close material anti-water damage, is deteriorated with base-material adhesiveness, easily peels off, high temperature easily produces rut.Paraffin in pitch
After referring to that pitch removes asphalitine and colloid, containing in oil, chilled to crystallize what is separated out, fusing point is more than 25 DEG C
Based on few cyclic hydrocar-bons of blending ingredients, mainly dystectic hydrocarbon mixture, n-alkane and long alkyl side chain.High temperature is easily soft
Change, low temperature ductility reduces, and influences pitch and is bonded with mineral aggregate, water stability is poor.The crystalline texture net of high-content wax amount pitch under low temperature
The rigidity of pitch is added, shows higher elastic and sticky, with the increase of wax content, the fragility of pitch also increases.Wax
Presence can reduce adhesion of the pitch to building stones interface, influence the friction performance of bituminous paving, the crystalline network of wax can promote to drip
It is blue or green to develop to gel-type colloform texture, but colloid system is unstable and have obvious thixotropy.It is changeable due to petroleum resources
Complexity, cause the content difference of wax in pitch point away from larger, its influence to road performance is very sensitive in addition.In (" self-adhesion polymerization
Influence of the key component to peel strength in thing modified asphalt waterproof coiled material ", Zhou Shengping, revival,《Chinese architecture waterproof》, 2010
Year the 24th phase) in the pitch that describes for low ductility, No. 10 building petroleum asphalts of high softening-point and Gao Lazhi it is all unsuitable
For road and waterproof roll.Now there are some researches show：Even if using existing SBS, PSBR and waxy bitumen at 180-200 DEG C
Temperature mixing is uniform, and after compound is down to normal temperature, modified pitch still body goes out the defects such as brittle, needle penetration is low, ductility is low, especially
It is that lower temperature resistance is poor；In addition self-adhesive waterproof roll material is mixed with using existing SBS, PSBR rubber plasticizing oil with waxy bitumen
When, when web sample is deposited after a few days in room temperature, rubber oil separates out from compound material, and material surface bonding force declines, or even wound
Lose adhesive property.Above-mentioned two modified pitch do not reach the requirement of road modified asphalt material and waterproof roll completely, so
Strengthen the modification to the building petroleum asphalt and high cured matter pitch of high softening-point, it is necessary to put forward its wide application field.
In addition, (" development of domestic SIS hot-fusible pressure-sensitive adhesives ", Di Mingwei, Wang Bo, Jiang Xingsheng etc.,《Chinese adhesive》,
2nd phase in 2001) in describe using domestic SIS as body material, coordinate tackifying resin, plasticizer, softening agent, age resistor etc. to grind
Make SIS hot-fusible pressure-sensitive adhesives.Influence of each component to performance is discussed, and its adhesive property is tested, experiment knot
Fruit proves that domestic SIS is functional, and the tackifying resin described in this text is terpene resin, and softening agent is white oil class, its application side
To for medical and packed in cases glue, do not set foot in for modified pitch industry.Generally with SIS, tackifying resin, plasticizer, soft
Agent has preferable bonding for the formula of main material to high-molecular organic material and inorganic polar material such as stone, Cement Concrete material
Power.But it is used to being modified 10# pitches and high cured using birds of the same feather flock together compound, tackifying resin, softening agent of polystyrene-b- polyisoprene
Matter, high softening-point pitch application do not appear in the newspapers also to.
Presently commercially available general SIS is that polystyrene-b- polyisoprene-b- styrene three block bodies are that cohesive force is higher
Thermoplastic elastomer (TPE), such as SIS-1105, SIS-1106, SIS-1209 and D-1107, wherein, S/I=(15~30)/(85
~70), number-average molecular weight is 80000~240000.This kind of polymer belongs to triblock copolymer.And diblock polystyrene-
B- polyisoprene (SI), which yet there are no, reports for work.
The content of the invention
It is used to be modified the defects of cured matter pitches of 10# or high are present, the purpose of the present invention first for existing SBS, PSBR
Individual purpose is to be to provide a kind of flexible, good fluidity, and can keep granular polystyrene-b- for a long time below 50 DEG C
Polyisoprene/tackifying resin compounded rubber particle.
Second object of the present invention be to provide a kind of simple, low cost prepare polystyrene-b- polyisoprene/
The method of tackifying resin compounded rubber particle；The method process conditions are ripe, and environmental protection, raw material sources are wide, meet industrialized production.
Third object of the present invention is to be to provide a kind of polystyrene-b- polyisoprene/compound rubber of tackifying resin
Application of micelle in high softening-point, high cured matter building asphalt sill, changes especially suitable for modified self-adhering-type or hot melt
Property asphalt water-proof coiled material and road modified asphalt, show higher ductility, the high and low temperature harsh compared with high-peeling strength, tolerance
And the characteristics of durability.
In order to realize above-mentioned technical purpose, the invention provides a kind of polystyrene-b- polyisoprene/tackifying resin is multiple
Rubber particles are closed, polystyrene-b- polyisoprene/tackifying resin compounded rubber particle includes the poly- isoamyls two of polystyrene-b-
Alkene and tackifying resin component.
The present invention polystyrene-b- polyisoprene there is diblock structure, impart polymeric adhesive flowing it is larger,
Elasticity flowing is smaller, and Tg is low, the features such as low temperature flexibility and good adhesive property.Based on polystyrene-b- polyisoprene in room temperature
There are down certain cold flow properties, even if the group of being unified into can be also glued after granulating and forming during storage, so by polystyrene-
The tackifying resin of high softening-point is added in b- polyisoprene rubbers, improves the bullet of polystyrene-polyisoprene rubber
Property flowing, hinder the self-adhesion of polystyrene-polyisoprene rubber, set polystyrene-polyisoprene rubber and thickening
Fat complexes also can keep granular for a long time after granulation even in less than 50 DEG C, be advantageous to follow-up application processing.
The mass ratio of preferable scheme, polystyrene-b- polyisoprene and tackifying resin is 1：(0.5~1).
More preferably scheme, the matter of polystyrene block and polyisoprene blocks in polystyrene-b- polyisoprene
It is (12~19) to measure ratio:(81~88).
Preferable scheme, the number-average molecular weight of the polystyrene block is 10000~13000.
Preferable scheme, the number-average molecular weight of the polyisoprene blocks is 60000~90000.
Preferable scheme, Isosorbide-5-Nitrae-architecture quality degree is not less than 85% in the polyisoprene copolymer block.
If the isoprene unit content of 3,4- structures is high, SI glass transition temperature can raise, and cause the fragility of modified asphalt material
Temperature rises, and resistance to low temperature is bad.
More preferably scheme, 300% stress at definite elongation of the polystyrene-b- polyisoprene is 0.4~0.6MPa, is melted
Melt index M FR=10~16g/10min.
Polystyrene-b- the polyisoprene that the present invention uses includes S block and I block, has following structure expression：
S-I
Formula 1
Wherein, S is polystyrene block, and I is polyisoprene blocks；
The S block of appropriate molecular weight is introduced in polystyrene-b- polyisoprene (SI elastomers), utilizes S block
Intermolecular force is strong, is advantageous to be molded, to prevent elastomer cold flow, self-adhesion.But if S block is long, the Tg rises of rubber,
Resistance to low temperature is poor；Styrene block is too short, and Tg is reduced, but polymer cohesive force declines, and is unfavorable for forming polymer.It is and suitable
I block impart elastomeric material there is excellent viscosity, low temperature flexibility and peel strength.But the benzene second in SI molecules
Alkene content is relatively low, isoprene content is too high, and synthesized polymer cold flow properties are big, are not easy to granulation formation.
Preferable scheme, tackifying resin are soluble thermoplastic's resin that tackifying is good, softening point is at 80~180 DEG C.
More preferably scheme, tackifying resin be terpene resin, polyketone resin, ester gum, rosin modified phenolic resin,
At least one of 2123 type phenolic resin, coumarone indene resin.
More preferably scheme, polystyrene-b- polyisoprene/tackifying resin compounded rubber particle size are ∮ (2~4)
× (4~6) mm.
Described polystyrene-b- polyisoprene/tackifying resin compounded rubber grain is prepared present invention also offers a kind of
The method of son, this method is that polystyrene-b- polyisoprene colloidal sols are prepared in anionic polymerisation system, in the colloidal sol
Tackifying resin is added, after dissolving mixing, cohesion, desolvation and granulation is passed sequentially through, produces.
Preferable scheme, the ratio that tackifying resin adds in polystyrene-b- polyisoprene glues be polystyrene-
B- polyisoprene (dry glue)/tackifying resin=1/ (0.5~1) (mass fraction).
Preferable scheme, in the anionic polymerisation system containing methyl phenyl ethers anisole and thiacyclohexane, first add styrene monomer and alkane
Base lithium initiator, carry out one-step polymerization；After the completion of one-step polymerization, isoprene monomer is added, two sections of polymerizations is carried out, produces poly-
Styrene-b- polyisoprene glues.
More preferably scheme, the reaction condition of one-step polymerization：Temperature be 50 DEG C~60 DEG C, polymerization time be 20min~
25min。
More preferably scheme, the reaction condition of two sections of polymerizations：Temperature be 60 DEG C~90 DEG C, polymerization time be 20min~
25min。
Present invention also offers the application of described polystyrene-b- polyisoprene/tackifying resin compounded rubber particle,
By polystyrene-b- polyisoprene/tackifying resin compounded rubber particle be applied to modified tack modified asphalt waterproof coiled material,
Hot melt modified asphalt waterproof coiled material or road modified materials.
Preferable scheme, tack modified asphalt waterproof coiled material include following content of component：High cured matter building asphalt 100
Part, polystyrene-b- polyisoprene/4~8 parts of tackifying resin compounded rubber, 4~8 parts of SBS, 20~30 parts of rubber oil, carbon
Sour 15~20 parts of calcium powder, 2~4 parts of talcum powder, 0.2~0.4 part of antioxidant 1076.
More preferably scheme, SBS are commercially available YH-791 and/or YH-792.
More preferably scheme, rubber oil be naphthenic oil, subtract in third fractional oil, residual oil at least two.
The tack modified asphalt waterproof coiled material of the present invention has preferable combination property：Tearing strength >=21N, peel off strong
Spend ＞ 1.0N/mm；Heat resistance, the 2h non-displacements at 75 DEG C, low temperature flexibility, the flawless at -20 DEG C.
The compound tackifying resin of polystyrene-b- polyisoprene of the present invention is used to prepare using high cured matter building asphalt as base
The method of the tack modified asphalt waterproof coiled material of material is as follows：
First quantitative high cured matter building asphalt base-material is put into reactor, 180~210 DEG C is heated to, sequentially adds poly-
The compound tackifying resin of styrene-b- polyisoprene, SBS, rubber oil, inorganic powder, under 80~150r/min stirring, are stirred
90min is mixed, then makees liner painting with PET non-woven fabrics and scrapes modified pitch material and related sample preparation and detection.
Preferable scheme, road modified materials include following content of component：High cured 100 parts of matter building asphalt, polystyrene-
B- polyisoprene/3~5 parts of tackifying resin compounded rubber particle, 2.5~3 parts of SBS, 8~15 parts of rubber oil, antioxidant 1076
0.2~0.4 part.
More preferably scheme, rubber oil are naphthenic oil, subtract at least one of third fractional oil, residual oil.
Compared with the prior art, the beneficial effect that technology of the invention is brought：
(1) polystyrene-b- polyisoprene/tackifying resin compounded rubber particle that technical scheme provides
In, styrene-content is relatively low in the polystyrene-b- polyisoprene molecules of use, impart polymeric adhesive flowing compared with
Greatly, elasticity flowing is smaller, and Tg is low, the characteristics of low temperature flexibility and good adhesive property.But polystyrene-b- polyisoprene glues
Property flowing it is larger, at room temperature with certain cold flow properties, even if the group of being unified into can be also glued after granulating and forming during storage.So
Compound change is carried out using the tackifying resin and polystyrene-b- polyisoprene of high softening-point in the inventive solutions
Property, tackifying resin substantially increases the elasticity flowing of polystyrene-b- polyisoprene rubbers, hinders polystyrene-b- and gather
The self-adhesion of isoprene rubber, by compound, obtained compounded rubber particle also can be long-term even in less than 50 DEG C for both
Keep granular, be advantageous to follow-up processed and applied.
(2) preparation method of polystyrene-b- polyisoprene/tackifying resin compounded rubber particle of the invention is simple,
It can be produced using existing maturation process and equipment, raw material sources are wide, meet demand of industrial production；Especially by poly-
Tackifying resin is directly added in styrene-b- polyisoprene glue systems, re-unites, be granulated, the poly- isoamyls two of polystyrene-b-
Alkene and tackifying resin perfect adaptation, pellet not cold flow, adhesion at room temperature, are embodied good in the presence of rubber oil after granulation
Good self-adhesion.
(3) polystyrene-b- polyisoprene rubbers/tackifying resin compounded rubber particle of the invention is especially suitable for changing
Property high softening-point, high cured matter building asphalt material, as being used for tack modified asphalt waterproof coiled material and road modified asphalt etc.
Tackifier, and modified high cured matter building asphalt has that low temperature resistant, ductility is high, initial cohesiveness is good and holds that the viscous time is long, peels off
Intensity is high, the heat resistance of the original high cured matter building asphalt maintained.
Embodiment
Following examples are intended to illustrate present invention, and the protection domain of the claims in the present invention is not implemented
The limitation of example.
In the following example：
Using the number-average molecular weight of gel permeation chromatograph (GPC) measure polymer.
Using the softening point of HDLR-IV type asphalt high-temperatures softening point apparatus measure modified pitch.
Using the adhesive property of LT-3000 annular initial adhesions tester measure modified pitch.
The peel strength of modified drip is determined using BLD-200S type electron detachments testing machine.
Using the tensile property of CMT4104 types tensilon measure polymer.
Embodiment 1
The cyclohexane solution for the normal hexane that mass fraction is 10% is added in 5 liters of polymeric kettles under nitrogen protection
3500mL, 0.08mL methyl phenyl ethers anisoles are then added, after the solvent in polymeric kettle is warming up into 50~60 DEG C with hot bath, by 50g benzene
Ethene adds in polymeric kettle and opens stirring, and the n-BuLi 8.5mL that 0.5mol/L is then injected with syringe enters in polymeric kettle, instead
After answering 20~25min；366g isoprene is added, after reacting 25min at 50~90 DEG C；It is equal to measure polymer (S-I) number
Molecular weight Mn=98700, wherein block polystyrene number-average molecular weight Mn (s)=12700, isoprene section 1 in polymer,
4- adduct contents 85.6%, 3,4- addition products 14.4%.
Embodiment 2
Correlated condition in embodiment 1 is constant, it is merely that n-BuLi dosage is selected into 9.0mL, methyl phenyl ethers anisole 0.05mL, it is different
Pentadiene dosage is 334g.As a result synthesized polymer (S-I) number-average molecular weight Mn=93300, wherein block polystyrene
Number-average molecular weight Mn (s)=11400, isoprene section Isosorbide-5-Nitrae-adduct content 88.5%, 3 in polymer, 4- addition products
11.5%.
Embodiment 3
Correlated condition in embodiment 1 is constant, it is merely that n-BuLi dosage is selected into 9.5mL, methyl phenyl ethers anisole 0.05mL, it is different
Pentadiene dosage is 307g.As a result synthesized polymer (S-I) number-average molecular weight Mn=85400, wherein block polystyrene
Number-average molecular weight Mn (s)=10600, isoprene section Isosorbide-5-Nitrae-adduct content 88.6%, 3 in polymer, 4- addition products
11.4%.
Embodiment 4
Correlated condition in embodiment 1 is constant, it is merely that n-BuLi dosage is selected into 8.5mL, methyl phenyl ethers anisole 0.04mL, it is different
Pentadiene dosage is 283g.As a result synthesized polymer (S-I) number-average molecular weight Mn=80600, wherein block polystyrene
Number-average molecular weight Mn (s)=12700, isoprene section Isosorbide-5-Nitrae-adduct content 89.2%, 3 in polymer, 4- addition products
10.8%.
Embodiment 5
Respectively the glue of the half in Example 1~4 in boiling water through water vapor accumulation, dry after be cut into it is granular, and
Physical property detection is carried out, it the results are shown in Table 1.
Table 1：The SI physical properties synthesized in embodiment 1~4
Embodiment 6
Remaining half glue in embodiment 1 is added in the three-necked flask of the 3000mL with reflux condensing tube (wherein
Dry glue is 208g), terpene resin and polyketone resin each 104g, antioxidant 1076 0.6g are then sequentially added into flask,
Its sample labelled notation is A.
Remaining half glue in embodiment 2 is added in the three-necked flask of the 3000mL with reflux condensing tube (wherein
Dry glue is 192g), terpene resin 96g, antioxidant 1076 0.7g are then added in flask, its sample labelled notation is B.
Remaining half glue in embodiment 3 is added in the three-necked flask of the 3000mL with reflux condensing tube (wherein
Dry glue is 178g), rosin modified phenolic resin 142g, antioxidant 1076 0.8g are then added in flask, its sample labelled notation is
C。
Remaining half glue in embodiment 4 is added in the three-necked flask of the 3000mL with reflux condensing tube (wherein
Dry glue is 166g), 2123 type phenolic resin 60g, each 40g of coumarone indene resin, antioxidant 1076 are then added in flask
0.8g, its sample labelled notation are D.
Then, the above-mentioned sample of A, B, C, D tetra- is heated into flask with hot bath respectively, material is warming up to 50-70 DEG C, stirring
After 30-60min, glue forms transparent golden yellow solution, finally by after golden yellow glue water vapor accumulation, expansion drying
It is granulated, particle size is ∮ (2~4) × (4~6) mm.
Finally, each 50g of rubber/plastics compound prepared by the sample of A, B, C, D tetra- is respectively placed in the (wall thickness of ∮ 50 × 80 respectively
6mm) in glass column, and upper 500g weights storage is pressed, observe the viscous situation of compound.Its result is aforementioned four sample in room
It is gentle put 90 days after, compound is still golden yellow bulk particle；After constant temperature is deposited 72 hours at 50 DEG C, golden yellow bulk particle
Produced without cold flow and viscous connection phenomenon.
Embodiment 7
800g 10# pitches are uniformly divided into 4 parts respectively to be placed in 500mL beaker, then by A, B in embodiment 6,
C, the samples of D tetra- prepare SI rubber/plastics complex particle be quantitatively separately added into it is above-mentioned in four beaker asphalt samples in, simultaneously
Add naphthenic oil 15g, aromatic naphtha 40g, SBS (YH-791) 8g, 30 parts of Paris white, 4 parts of talcum powder, antioxidant 1076 0.3
Part, then beaker is placed on electric furnace and heats 180-210 DEG C, after stirring 90min under 80~150r/min stir speed (S.S.)s, then will
Modified pitch material is uniformly applied and scraped on PET non-woven fabrics, and it is i.e. plastic to be cooled to room temperature.The modification tack asphalt waterproofing volume of preparation
Material physical property is shown in Table 2.
The modified asphalt waterproof coiled material physical property that in the embodiment of table 2. prepared by A, B, C, D sample
* note：Addition of the SI rubber/plastics complex particles in formula.
Embodiment 8
800g 10# pitches are uniformly divided into 4 parts respectively to be placed in 500mL beaker, then by A, B in embodiment 6,
C, the samples of D tetra- weigh respectively 10g add it is above-mentioned in four beaker asphalt samples in, while be separately added into quantitative naphthenic oil and virtue
Hydrocarbon ils, SBS (YH-791H) 5g, antioxidant 1076 0.3g, then beaker is placed on electric furnace and heats 180-210 DEG C,
After stirring 30min under 4000r/min stir speed (S.S.)s, then modified pitch material is respectively implanted in mould, then cooled down in a water bath
To 5 DEG C, the physical property of modified road asphalt is then surveyed, the results are shown in Table 3.
Table 3：SI rubber/plastics compound and rubber oil * * are modified the physical property of No. 10 pitch
* is noted：Addition of the rubber oil in modified pavement asphalt formula.
Claims (17)
- A kind of 1. polystyrene-b- polyisoprene/tackifying resin compounded rubber particle, it is characterised in that：Including polystyrene- B- polyisoprene and tackifying resin component.
- 2. polystyrene-b- polyisoprene according to claim 1/tackifying resin compounded rubber particle, its feature exist In：The mass ratio of polystyrene-b- polyisoprene and tackifying resin is 1：(0.5~1).
- 3. polystyrene-b- polyisoprene according to claim 1 or 2/tackifying resin compounded rubber particle, its feature It is：Polystyrene block and the mass ratio of polyisoprene blocks are (12~19) in polystyrene-b- polyisoprene: (81~88).
- 4. polystyrene-b- polyisoprene according to claim 3/tackifying resin compounded rubber particle, its feature exist In：The number-average molecular weight of the polystyrene block is 10000~13000；The number-average molecular weight of the polyisoprene blocks is 60000~90000.
- 5. polystyrene-b- polyisoprene according to claim 3/tackifying resin compounded rubber particle, its feature exist In：1,4- architecture qualities degree is not less than 85% in the polyisoprene copolymer block.
- 6. polystyrene-b- polyisoprene according to claim 1 or 2/tackifying resin compounded rubber particle, its feature It is：300% stress at definite elongation of the polystyrene-b- polyisoprene is 0.4~0.6MPa, melt index MFR=10~ 16g/10min。
- 7. polystyrene-b- polyisoprene according to claim 1 or 2/tackifying resin compounded rubber particle, its feature It is：Described tackifying resin is soluble thermoplastic resin of the softening point at 80~180 DEG C.
- 8. polystyrene-b- polyisoprene according to claim 7/tackifying resin compounded rubber particle, its feature exist In：Described tackifying resin is terpene resin, polyketone resin, ester gum, rosin modified phenolic resin, 2123 type phenolic aldehyde trees At least one of fat, coumarone indene resin.
- 9. polystyrene-b- polyisoprene/tackifying resin compounded rubber particle according to claim 1,2,4,5 or 8, It is characterized in that：Polystyrene-b- the polyisoprene/tackifying resin compounded rubber particle size be ∮ (2~4) × (4~ 6)mm。
- 10. prepare polystyrene-b- polyisoprene/tackifying resin compounded rubber particle described in any one of claim 1~9 Method, it is characterised in that：Polystyrene-b- polyisoprene colloidal sols are prepared in anionic polymerisation system, in the colloidal sol Middle addition tackifying resin, after dissolving mixing, cohesion, desolvation and granulation are passed sequentially through, is produced.
- 11. prepare polystyrene-b- polyisoprene/tackifying resin compounded rubber particle according to claim 10 processed Method, it is characterised in that：In the anionic polymerisation system containing methyl phenyl ethers anisole and thiacyclohexane, styrene monomer and lithium alkylide are first added Initiator, carry out one-step polymerization；After the completion of one-step polymerization, isoprene monomer is added, two sections of polymerizations is carried out, produces polyphenyl second Alkene-b- polyisoprene glues.
- 12. the side according to claim 11 for preparing polystyrene-b- polyisoprene/tackifying resin compounded rubber particle Method, it is characterised in that：The reaction condition of one-step polymerization：Temperature is 50 DEG C~60 DEG C, and polymerization time is 20min~25min；The reaction condition of two sections of polymerizations：Temperature is 60 DEG C~90 DEG C, and polymerization time is 20min~25min.
- 13. polystyrene-b- polyisoprene/tackifying resin compounded rubber particle described in any one of claim 1~9 should With, it is characterised in that：Change applied to modified tack modified asphalt waterproof coiled material, hot melt modified asphalt waterproof coiled material or road Property material.
- 14. the application of polystyrene-b- polyisoprene according to claim 13/tackifying resin compounded rubber particle, It is characterized in that：Described tack modified asphalt waterproof coiled material includes following content of component：High cured matter building asphalt 100 Part, polystyrene-b- polyisoprene/4~8 parts of tackifying resin compounded rubber, 4~8 parts of SBS, 20~30 parts of rubber oil, carbon Sour 15~20 parts of calcium powder, 2~4 parts of talcum powder, 0.2~0.4 part of antioxidant 1076.
- 15. the application of polystyrene-b- polyisoprene according to claim 14/tackifying resin compounded rubber particle, It is characterized in that：Described SBS is commercially available YH-791 and/or YH-792；Described rubber oil be naphthenic oil, subtract in third fractional oil, residual oil at least two.
- 16. the application of polystyrene-b- polyisoprene according to claim 13/tackifying resin compounded rubber particle, It is characterized in that：Described road modified materials include following content of component：High cured 100 parts of matter building asphalt, polystyrene-b- Polyisoprene/3~5 parts of tackifying resin compounded rubber particle, 2.5~3 parts of SBS, 8~15 parts of rubber oil, antioxidant 1076 0.2~0.4 part.
- 17. the application of polystyrene-b- polyisoprene according to claim 16/tackifying resin compounded rubber particle, It is characterized in that：Described rubber oil is naphthenic oil, subtracts at least one of third fractional oil, residual oil.
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| US5412032A (en) * | 1994-02-22 | 1995-05-02 | Shell Oil Company | High molecular weight low coupled linear styrene-isoprene-styrene block copolymer composition and adhesives made therefrom |
| WO2010107134A1 (en) * | 2009-03-18 | 2010-09-23 | Taiyu Kensetsu Co., Ltd. | Asphalt modifier, asphalt composition, asphalt mixture, and methods for producing them |
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| CN103849100A (en) * | 2012-12-03 | 2014-06-11 | 中国石油化工股份有限公司 | Preparation of carrier styrene-isoprene block copolymer composition and adhesive for plaster or patch |
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