CN107619571B - Polystyrene-b-polyisoprene/tackifying resin composite rubber particles and preparation method and application thereof - Google Patents
Polystyrene-b-polyisoprene/tackifying resin composite rubber particles and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a polystyrene-b-polyisoprene/tackifying resin composite rubber particle and a preparation method and application thereof, wherein the composite rubber particle comprises a polystyrene-b-polyisoprene and a tackifying resin component; the preparation method comprises the steps of preparing polystyrene-b-polyisoprene sol in an anionic polymerization system, adding tackifying resin into the sol, dissolving and mixing, and sequentially carrying out coagulation, solvent removal and granulation to obtain the polystyrene-b-polyisoprene sol; the composite rubber particles do not flow and adhere at room temperature, and show good self-adhesion performance under the action of rubber oil, and the tackifying resin composite rubber particles show good adhesion performance and high and low temperature resistance with sandstone and concrete surfaces in the modification of the asphalt with high wax and high softening point, and simultaneously have good water resistance and higher ductility, so that the application of the high wax asphalt is expanded.
Description
Technical Field
The invention relates to polystyrene-b-polyisoprene/tackifying resin composite rubber particles and a preparation method thereof, in particular to polystyrene-b-polyisoprene/tackifying resin composite rubber particles in modified tackifying building asphalt materials, belonging to the field of polymer synthesis and modified asphalt.
Background
Modern highways and roads are changed, and the flow resistance of the road surface, namely the rutting resistance at high temperature, is required to be improved; the flexibility and elasticity are improved, and the cracking resistance at low temperature is improved; improving the abrasion resistance and prolonging the service life. The modern buildings generally adopt large-span prestressed roof boards, require the roof waterproof materials to adapt to large displacement, more endure harsh high and low temperature climatic conditions, have better durability and self-adhesion, are convenient to construct and reduce the maintenance workload. These changes in the use environment present a significant challenge to the performance of petroleum asphalt.
At present, petroleum asphalt is mainly modified to meet the above harsh use requirements. Various modified road asphalt and waterproof coiled materials appear, and certain engineering practical effects are shown. The modified asphalt waterproof coiled material and the coating are mainly used for waterproof engineering of high-grade buildings. The variety and preparation technique of the modified asphalt depends on the type of modifier, the addition amount and the composition and properties of the base asphalt (i.e., the raw asphalt). Because of various kinds and forms of the modifier, in order to form a uniform material which can be used for engineering with the petroleum asphalt, various types of modifiers have been evaluated for years, and corresponding formulas and preparation methods have been developed.
For example, in the prior art, 3-5% SBS is added into 70# or 90# asphalt to modify the asphalt, so that the softening point and ductility of the original base asphalt can be improved to meet the requirement of the road asphalt. For example, the classification, standard and selection principle of road modified asphalt is introduced in Shenjin' an, road traffic science (1998, No. 1), and the SBS modified asphalt is recommended to be manufactured in construction sites as the development direction of modified asphalt in China, from the viewpoint of cost and performance. For example, the modified asphalt can be SBS elastomer of multiple brands of YH-791H, Dou Dai 1#, Dou Dai 2# and the like which are commercialized for rubber material for modified asphalt by the company of Bailin petrochemical company of China. In addition, the SBS and the PSBR are used for modified asphalt in the production process research of the waterproof roll material without the tire base self-adhesive polymer modified asphalt, reviving and rising all, China building waterproofing, 2012, No. 12), the production process beneficial to the flatness of the waterproof roll material without the tire base self-adhesive polymer modified asphalt is provided through the research of a forming mode, a formula, a film coating material and the like, the common problems in the production process of the waterproof roll material are analyzed, and a solution is provided. In recent years, SBS and PSBR modified 70# or 90# asphalt are used for self-adhesive waterproof rolls in industrialization, but the application of low-ductility and high-softening-point building petroleum asphalt and high-wax asphalt to road improvement and waterproof rolls is not reported at present.
The traditional No. 70 and No. 90 asphalt has the characteristics of proper penetration degree and softening point, high ductility, wax content less than 3 percent and the like, and is widely used in the industries of roads, waterproof coiled materials and the like. The high wax content of the asphalt can reduce the cohesiveness and plasticity of the petroleum asphalt, and meanwhile, the asphalt is poor in temperature stability, and due to the wax in the asphalt, the asphalt is easy to soften at high temperature, so that the high-temperature stability of the asphalt pavement is reduced, and rutting occurs; also, at low temperatures, asphalt becomes brittle and hard, resulting in a reduction in the low temperature crack resistance of the pavement and the appearance of cracks. In addition, the wax can reduce the adhesiveness of asphalt and stone, and can cause the peeling phenomenon of road stones in the presence of water to cause road surface damage, and more seriously, the wax-containing asphalt can reduce the skid resistance of the asphalt road surface to influence the driving safety of the road surface, and compared with the same grade asphalt with low wax content, the asphalt with high wax content has the advantages of higher softening point, lower ductility, poorer water damage resistance of the asphalt mixture, poorer adhesive base material, easy peeling and easy rutting generation at high temperature. The paraffin in the asphalt is a mixed component which is contained in the oil component after removing the asphaltene and the colloid and is crystallized by freezing energy and has a melting point of more than 25 ℃, and mainly comprises a hydrocarbon mixture with a high melting point and less cyclic hydrocarbons of normal paraffin and long alkyl side chains. The asphalt is easy to soften at high temperature, the ductility at low temperature is reduced, the adhesion of the asphalt and mineral aggregate is influenced, and the water stability is poor. The crystalline structure network of the high wax content asphalt at low temperature increases the rigidity of the asphalt, shows higher elasticity and viscosity, and increases the brittleness of the asphalt along with the increase of the wax content. The presence of wax can reduce the adhesion of asphalt to stone interfaces and affect the friction resistance of asphalt pavements, and the crystalline network of wax can promote the development of asphalt to a gel-type colloid structure, but the colloid system is unstable and has obvious thixotropy. Due to the variable and complicated petroleum sources, the content difference of the wax in the asphalt is large, and the influence on the road performance is very sensitive. The influence of main components in self-adhesive polymer modified asphalt waterproof coiled materials on peel strength, Zhongshengping, awakening, China building waterproof, 24 th 2010) describes that No. 10 building petroleum asphalt with low ductility and high softening point and high wax asphalt are not suitable for roads and waterproof coiled materials. The existing research shows that: even if the existing SBS, PSBR and waxy asphalt are uniformly mixed at the temperature of 180-200 ℃, when the mixture is cooled to normal temperature, the modified asphalt still has the defects of easy brittleness, low penetration degree, low ductility and the like, and particularly has poor low-temperature resistance; in addition, when the conventional SBS and PSBR rubber plasticizing oil is mixed with waxy asphalt to prepare the self-adhesive waterproof coiled material, the rubber oil is separated out from the composite material after a coiled material sample is stored for several days at room temperature, the surface bonding force of the material is reduced, and even the bonding performance is damaged. The two modified asphalts can not meet the use requirements of road modified asphalt materials and waterproof coiled materials, so that the modification of the building petroleum asphalt with high softening point and the high wax asphalt is strengthened, and the application field of the asphalt is necessarily widened.
Further, the development of an SIS hot-melt pressure-sensitive adhesive (made in China) (Mingmei, Wangbo, Jiangxingsheng, etc.; China Adhesives, No. 2 of 2001) introduced the development of an SIS hot-melt pressure-sensitive adhesive which is made from a main raw material of domestic SIS and a tackifier resin, a plasticizer, a softener, an anti-aging agent, etc. The influence of each component on the performance is discussed, the adhesive property of the adhesive is tested, and the experimental result proves that the domestic SIS has good performance, the tackifying resin described in the article is terpene resin, the softening agent is white oil, the application direction of the adhesive is medical and carton packaging adhesive, and the adhesive is not used for the modified asphalt industry. The formula which takes SIS, tackifying resin, plasticizer and softener as main materials generally has better adhesive force to organic high molecular materials and inorganic polar materials such as stones and cement concrete materials. However, the use of polystyrene-b-polyisoprene polymers, tackifying resins and softeners for modifying asphalt 10# and asphalt with high wax content and high softening point has not been reported.
Currently, commercially available and commonly used SIS is polystyrene-b-polyisoprene-b-styrene triblock, which is a thermoplastic elastomer with high cohesive force, such as SIS-1105, SIS-1106, SIS-1209, D-1107 and the like, wherein S/I is (15-30)/(85-70) and the number average molecular weight is 80000-240000. These polymers are all triblock copolymers. Diblock polystyrene-b-polyisoprene (SI) has not been reported.
Disclosure of Invention
Aiming at the defects of the prior SBS and PSBR for modifying 10# or high wax asphalt, the first purpose of the invention is to provide polystyrene-b-polyisoprene/tackifying resin composite rubber particles which have elasticity and good fluidity and can keep granular for a long time below 50 ℃.
The second purpose of the invention is to provide a simple and low-cost method for preparing polystyrene-b-polyisoprene/tackifying resin composite rubber particles; the method has the advantages of mature process conditions, environmental protection and wide raw material source, and meets the requirement of industrial production.
The third purpose of the invention is to provide the application of the polystyrene-b-polyisoprene/tackifying resin composite rubber particles in the high-softening-point and high-wax building asphalt base material, which is particularly suitable for modified self-adhesive or hot-melt modified asphalt waterproof coiled materials and road modified asphalt and has the characteristics of higher ductility, higher peel strength, harsh resistance to high and low temperatures and durability.
In order to achieve the above technical objects, the present invention provides a polystyrene-b-polyisoprene/tackifying resin composite rubber particle comprising a polystyrene-b-polyisoprene and a tackifying resin component.
The polystyrene-b-polyisoprene has a diblock structure, and has the characteristics of relatively large viscous flow, relatively small elastic flow, low Tg, low-temperature flexibility, good bonding property and the like. The polystyrene-b-polyisoprene rubber has certain cold flowability at room temperature, and can be bonded into a block in the storage process even after being granulated and formed, so that the elastic flow of the polystyrene-polyisoprene rubber is improved and the self-adhesion of the polystyrene-polyisoprene rubber is hindered by adding the tackifying resin with a high softening point into the polystyrene-b-polyisoprene rubber, so that the polystyrene-polyisoprene rubber and the tackifying resin compound can be granulated for a long time even at the temperature below 50 ℃, and the subsequent application and processing are facilitated.
In a preferred embodiment, the mass ratio of the polystyrene-b-polyisoprene to the tackifying resin is 1: (0.5 to 1).
Preferably, the mass ratio of the polystyrene block to the polyisoprene block in the polystyrene-b-polyisoprene is (12-19) to (81-88).
In a preferable scheme, the number average molecular weight of the polystyrene block is 10000-13000.
Preferably, the number average molecular weight of the polyisoprene block is 60000-90000.
Preferably, the mass percentage content of the 1, 4-structure in the polyisoprene copolymerization block is not less than 85 percent. If the content of 3, 4-isoprene units is high, the glass transition temperature of SI increases, which leads to an increase in the brittleness temperature of the modified asphalt material and poor low temperature resistance.
More preferably, the polystyrene-b-polyisoprene has a 300% stress at elongation of 0.4 to 0.6MPa and a melt index MFR of 10 to 16g/10 min.
The polystyrene-b-polyisoprene adopted by the invention comprises an S block and an I block, and has the following structural expression:
S-I
formula 1
Wherein S is a polystyrene block, and I is a polyisoprene block;
the S block with proper molecular weight is introduced into the polystyrene-b-polyisoprene (SI elastomer), and the strong intermolecular force of the S block is utilized to facilitate molding so as to prevent the elastomer from cold flow and self adhesion. However, if the S block is too long, the Tg of the rubber increases and the low temperature resistance is poor; if the styrene block is too short, Tg is lowered, but the cohesion of the polymer is lowered, which is not favorable for polymer molding. While suitable I blocks impart excellent tack, low temperature flexibility and peel strength to the elastomeric material. However, since the SI molecule has a low styrene content and an excessively high isoprene content, the resultant polymer has a high cold flow property and is not easily pelletized.
In a preferable scheme, the tackifying resin is soluble thermoplastic resin with good tackifying property and a softening point of 80-180 ℃.
More preferably, the tackifier resin is at least one of terpene resin, polyketone resin, rosin glyceride, rosin-modified phenol resin, 2123-type phenol resin, and coumarone resin.
More preferably, the particle size of the polystyrene-b-polyisoprene/tackifier resin composite rubber is phi (2-4) × (4-6) mm.
The invention also provides a method for preparing the polystyrene-b-polyisoprene/tackifying resin composite rubber particles, which comprises the steps of preparing polystyrene-b-polyisoprene sol in an anionic polymerization system, adding tackifying resin into the sol, dissolving and mixing, and sequentially condensing, removing solvent and granulating to obtain the polystyrene-b-polyisoprene/tackifying resin composite rubber particles.
Preferably, the proportion of the tackifying resin added into the polystyrene-b-polyisoprene glue solution is that the polystyrene-b-polyisoprene (dry glue)/tackifying resin is 1/(0.5-1) (parts by weight).
In the preferable scheme, in an anionic polymerization system containing anisole and cyclohexane, a styrene monomer and an alkyl lithium initiator are added firstly to carry out first-stage polymerization; after the first-stage polymerization is finished, adding an isoprene monomer, and carrying out second-stage polymerization to obtain the polystyrene-b-polyisoprene glue solution.
In a more preferred embodiment, the reaction conditions of the one-stage polymerization are as follows: the temperature is 50-60 ℃, and the polymerization time is 20-25 min.
In a more preferred embodiment, the reaction conditions of the two-stage polymerization are as follows: the temperature is 60-90 ℃, and the polymerization time is 20-25 min.
The invention also provides application of the polystyrene-b-polyisoprene/tackifying resin composite rubber particles, and the polystyrene-b-polyisoprene/tackifying resin composite rubber particles are applied to modified self-adhesive modified asphalt waterproof coiled materials, hot-melt modified asphalt waterproof coiled materials or road modified materials.
According to the preferable scheme, the self-adhesive modified asphalt waterproof coiled material comprises the following components in parts by mass: 100 parts of high wax building asphalt, 4-8 parts of polystyrene-b-polyisoprene/tackifying resin composite rubber, 4-8 parts of SBS, 20-30 parts of rubber oil, 15-20 parts of calcium carbonate powder, 2-4 parts of talcum powder and 10760.2-0.4 part of antioxidant.
More preferably, SBS is commercially available as YH-791 and/or YH-792.
In a more preferable scheme, the rubber oil is at least two of naphthenic oil, trilinear oil and residual oil.
The self-adhesive modified asphalt waterproof coiled material has the advantages of better comprehensive performance: the tearing strength is more than or equal to 21N, and the peeling strength is more than 1.0N/mm; heat resistance, no displacement at 75 ℃ for 2h, low-temperature flexibility and no crack at-20 ℃.
The method for preparing the self-adhesive modified asphalt waterproof coiled material by using the polystyrene-b-polyisoprene composite tackifying resin as the base material comprises the following steps:
firstly, putting a certain amount of high-wax building asphalt base material into a reaction kettle, heating to 180-210 ℃, then sequentially adding polystyrene-b-polyisoprene composite tackifying resin, SBS, rubber oil and inorganic powder, stirring for 90min under the stirring of 80-150 r/min, and then using PET non-woven fabric as an inner liner to coat and scrape modified asphalt material and related sample preparation and detection.
In a preferred scheme, the road modifying material comprises the following components in parts by mass: 100 parts of high wax building asphalt, 3-5 parts of polystyrene-b-polyisoprene/tackifying resin composite rubber particles, 2.5-3 parts of SBS, 8-15 parts of rubber oil and 10760.2-0.4 part of antioxidant.
In a more preferable scheme, the rubber oil is at least one of naphthenic oil, trilinear oil and residual oil.
Compared with the prior art, the technology of the invention has the following beneficial effects:
(1) in the polystyrene-b-polyisoprene/tackifying resin composite rubber particles provided by the technical scheme of the invention, the polystyrene-b-polyisoprene has relatively low styrene content in molecules, and the characteristics of large viscous flow, small elastic flow, low Tg, low-temperature flexibility and good bonding performance are endowed to the polymer. However, polystyrene-b-polyisoprene has a large viscous flow and a certain cold flow property at room temperature, and even after granulation and molding, it is bonded and agglomerated during storage. Therefore, in the technical scheme of the invention, the tackifying resin with high softening point and the polystyrene-b-polyisoprene are adopted for composite modification, the tackifying resin greatly improves the elastic flow of the polystyrene-b-polyisoprene rubber and hinders the self-adhesion of the polystyrene-b-polyisoprene rubber, and the tackifying resin and the polystyrene-b-polyisoprene rubber can be granulated for a long time even at the temperature of below 50 ℃ by composite granulation, so that the subsequent processing application is facilitated.
(2) The preparation method of the polystyrene-b-polyisoprene/tackifying resin composite rubber particles is simple, the existing mature process and equipment can be used for production, the raw material source is wide, and the industrial production requirements are met; particularly, by directly adding tackifying resin into a polystyrene-b-polyisoprene glue solution system, and then condensing and granulating, the polystyrene-b-polyisoprene and the tackifying resin are perfectly combined, and granules after granulation do not flow or adhere at room temperature and show good self-adhesion performance under the action of rubber oil.
(3) The polystyrene-b-polyisoprene rubber/tackifying resin composite rubber particles are particularly suitable for modifying high-softening-point and high-wax building asphalt materials, such as tackifiers used for self-adhesive modified asphalt waterproof coiled materials, road modified asphalt and the like, and the modified high-wax building asphalt has the advantages of low temperature resistance, high ductility, good initial adhesion performance, long adhesion maintaining time and high peel strength, and simultaneously maintains the heat resistance of the original high-wax building asphalt.
Detailed Description
The following examples are intended to illustrate the present invention, and the scope of the claims of the present invention is not limited by the examples.
In the following examples:
the number average molecular weight of the polymer was measured by Gel Permeation Chromatography (GPC).
The softening point of the modified asphalt is measured by adopting an HDLR-IV type asphalt high-temperature softening point tester.
The bonding performance of the modified asphalt is measured by adopting an LT-3000 annular initial viscosity tester.
The peel strength of the modified asphalt was measured by a BLD-200S type electron peel tester.
Tensile properties of the polymer were measured using a CMT4104 model Universal tensile machine.
Example 1
Adding 3500mL of cyclohexane solution of 10% by mass n-hexane into a 5L polymerization kettle under the protection of nitrogen, then adding 0.08mL of anisole, heating the solvent in the polymerization kettle to 50-60 ℃ by using a hot water bath, then adding 50g of styrene into the polymerization kettle, stirring, then injecting 8.5mL of 0.5mol/L n-butyllithium into the polymerization kettle by using an injector, and reacting for 20-25 min; then 366g of isoprene is added, and the mixture reacts for 25min at the temperature of 50-90 ℃; the number average molecular weight Mn of the polymer (S-I) was determined to be 98700, the number average molecular weight Mn of the block polystyrene (S) was 12700, the content of the 1, 4-addition product of isoprene block in the polymer was 85.6%, and the content of the 3, 4-addition product was 14.4%.
Example 2
Only 9.0mL of n-butyllithium, 0.05mL of anisole and 334g of isoprene were used without changing the relevant conditions in example 1. As a result, the synthesized polymer (S-I) had a number average molecular weight Mn of 93300, wherein the number average molecular weight Mn of the block polystyrene (S) was 11400, the content of the 1, 4-adduct of isoprene block in the polymer was 88.5%, and the content of the 3, 4-adduct was 11.5%.
Example 3
Only 9.5mL of n-butyllithium, 0.05mL of anisole and 307g of isoprene were used without changing the relevant conditions in example 1. As a result, a polymer (S-I) having a number average molecular weight Mn of 85400, wherein the number average molecular weight Mn of block polystyrene (S) 10600, an isoprene segment 1, 4-adduct content of 88.6% and a 3, 4-adduct content of 11.4% was synthesized.
Example 4
Only 8.5mL of n-butyllithium, 0.04mL of anisole and 283g of isoprene were used without changing the relevant conditions in example 1. As a result, a polymer (S-I) having a number average molecular weight Mn of 80600, wherein the number average molecular weight Mn of the block polystyrene (S) was 12700, the content of the 1, 4-adduct of isoprene segment in the polymer was 89.2%, and the content of the 3, 4-adduct was 10.8% was synthesized.
Example 5
Half of the glue solutions of examples 1 to 4 were coagulated with water vapor in boiling water, dried, and cut into granules, and physical properties were measured, and the results are shown in table 1.
Table 1: physical Properties of SI synthesized in examples 1 to 4
Example 6
The remaining half of the dope from example 1 was put into a 3000mL three-necked flask equipped with a reflux condenser (208 g of dry dope), and then 104g of each of terpene resin and polyketone resin and 10760.6 g of antioxidant, whose sample number is designated A, were added in this order.
The remaining half of the gum solution of example 2 was placed in a 3000mL three-necked flask equipped with a reflux condenser (192 g dry gum), and then 96g terpene resin and 10760.7 g antioxidant, whose sample number is designated B, were added to the flask.
The remaining half of the gum solution of example 3 was placed in a 3000mL three-necked flask equipped with a reflux condenser (178 g dry gum), and then 142g rosin-modified phenol resin and 10760.8g antioxidant, whose sample number is designated as C, were added to the flask.
The remaining half of the glue from example 4 was placed in a 3000mL three-necked flask equipped with a reflux condenser (166 g dry glue), and then 60g of phenolic resin type 2123, 40g of coumarone resin, and 10760.8g of antioxidant, whose sample number is designated as D, were placed in the flask.
And then heating the flask by using a hot water bath for A, B, C, D samples respectively, heating the materials to 50-70 ℃, stirring for 30-60min to form a transparent golden yellow solution, and finally condensing, expanding and drying the golden yellow solution by using water vapor and granulating to obtain particles with the particle size phi (2-4) x (4-6) mm.
Finally, 50g each of A, B, C, D four prepared rubber/resin composites was placed in a phi 50X 80 (6 mm thick) glass column and stored under 500g weight, and the adhesion of the composites was observed. The result is that the compound is golden yellow loose particles after the four samples are stored for 90 days at room temperature; after being stored for 72 hours at the constant temperature of 50 ℃, the golden yellow loose particles do not generate cold flow and adhesion phenomena.
Example 7
Respectively and uniformly dividing 800g of No. 10 asphalt into 4 parts, placing the 4 parts in 500mL beakers, then quantitatively and respectively adding the SI rubber/resin composite particles prepared from the A, B, C, D samples in the example 6 into the four beaker asphalt samples, simultaneously adding 15g of naphthenic oil, 40g of aromatic oil, 8g of SBS (YH-791), 30 parts of calcium carbonate powder, 4 parts of talcum powder and 10760.3 parts of antioxidant, placing the beakers on an electric furnace, heating the beakers at 180 ℃ and 210 ℃, stirring the mixture for 90min at a stirring speed of 80-150 r/min, then uniformly coating the modified asphalt material on a PET non-woven fabric, and cooling the mixture to room temperature to form the modified asphalt. The physical properties of the prepared modified self-adhesive asphalt waterproof coiled material are shown in Table 2.
TABLE 2 physical Properties of modified asphalt waterproofing membranes prepared as in example A, B, C, D
Injecting: the amount of SI rubber/resin composite particles added to the formulation.
Example 8
800g 10# asphalt is respectively and evenly divided into 4 parts and placed in 500mL beakers, then 10g of A, B, C, D sample in example 6 is respectively weighed and added into the four beakers, and simultaneously, quantitative naphthenic oil and aromatic oil, 5g of SBS (YH-791H) and 10760.3 g of antioxidant are respectively added, then the beakers are placed on an electric furnace to be heated for 180 ℃ and 210 ℃, the mixture is stirred for 30min at the stirring speed of 4000r/min, then the modified asphalt materials are respectively placed in moulds, then the temperature is cooled to 5 ℃ in water bath, and then the physical properties of the modified road asphalt are measured, and the results are shown in Table 3.
Table 3: physical Properties of SI rubber/resin composite and rubber oil modified No. 10 asphalt
Note: the addition amount of the rubber oil in the formula of the modified road asphalt.
Claims (9)
1. The application of the polystyrene-b-polyisoprene/tackifying resin composite rubber particles is characterized in that: the modified self-adhesive modified asphalt waterproof coiled material is applied to a modified self-adhesive modified asphalt waterproof coiled material, a hot-melt modified asphalt waterproof coiled material or a road modified material; wherein the asphalt component in the self-adhesive modified asphalt waterproof coiled material, the hot-melt modified asphalt waterproof coiled material and the road modified material is high-waxy building asphalt;
the polystyrene-b-polyisoprene/tackifying resin composite rubber particles comprise polystyrene-b-polyisoprene and tackifying resin components;
the mass ratio of the polystyrene block to the polyisoprene block in the polystyrene-b-polyisoprene is (12-19) to (81-88);
the number average molecular weight of the polystyrene block is 10000-13000;
the number average molecular weight of the polyisoprene block is 60000-90000;
the mass percentage content of the 1, 4-structure in the polyisoprene copolymerization block is not less than 85 percent;
the tackifying resin is soluble thermoplastic resin with the softening point of 80-180 ℃.
2. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1, wherein: the mass ratio of the polystyrene-b-polyisoprene to the tackifying resin is 1: (0.5 to 1).
3. Use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1 or 2, characterized in that: the polystyrene-b-polyisoprene has a 300% stress at definite elongation of 0.4-0.6 MPa and a melt index MFR = 10-16 g/10 min.
4. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1, wherein: the tackifying resin is at least one of terpene resin, polyketone resin, rosin glyceride, rosin modified phenolic resin, 2123 type phenolic resin and coumarone resin.
5. Use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1 or 2, characterized in that: the particle size of the polystyrene-b-polyisoprene/tackifying resin composite rubber is phi (2-4) × (4-6) mm.
6. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1, wherein: the self-adhesive modified asphalt waterproof coiled material comprises the following components in parts by mass: 100 parts of high-wax building asphalt, 4-8 parts of polystyrene-b-polyisoprene/tackifying resin composite rubber, 4-8 parts of SBS, 20-30 parts of rubber oil, 15-20 parts of calcium carbonate powder, 2-4 parts of talcum powder and 10760.2-0.4 part of antioxidant.
7. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 6, wherein:
the SBS is commercially available YH-791 and/or YH-792;
the rubber oil is at least two of naphthenic oil, trilinear oil and residual oil.
8. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 1, wherein: the road modifying material comprises the following components in parts by mass: 100 parts of high-wax building asphalt, 3-5 parts of polystyrene-b-polyisoprene/tackifying resin composite rubber particles, 2.5-3 parts of SBS, 8-15 parts of rubber oil and 10760.2-0.4 part of antioxidant.
9. The use of polystyrene-b-polyisoprene/tackifying resin composite rubber particles according to claim 8, wherein: the rubber oil is at least one of naphthenic oil, trilinear oil and residual oil.
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| CN201610562620.3A Active CN107619571B (en) | 2016-07-15 | 2016-07-15 | Polystyrene-b-polyisoprene/tackifying resin composite rubber particles and preparation method and application thereof |
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Citations (5)
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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 |
| CN102234362A (en) * | 2010-05-05 | 2011-11-09 | 中国石油化工集团公司 | Styrene-isoprene hyperbranched copolymer and preparation method and application thereof |
| CN103540281A (en) * | 2013-10-21 | 2014-01-29 | 广东东方树脂有限公司 | Quickly-cured rubber-type hot melt adhesive |
| 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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102234362A (en) * | 2010-05-05 | 2011-11-09 | 中国石油化工集团公司 | Styrene-isoprene hyperbranched copolymer and preparation method and application thereof |
| 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 |
| CN103540281A (en) * | 2013-10-21 | 2014-01-29 | 广东东方树脂有限公司 | Quickly-cured rubber-type hot melt adhesive |
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| CN107619571A (en) | 2018-01-23 |
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