CN105542496B - Uncured rubber-asphalt waterproof material and preparation method thereof - Google Patents

Uncured rubber-asphalt waterproof material and preparation method thereof Download PDF

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Publication number
CN105542496B
CN105542496B CN201610125150.4A CN201610125150A CN105542496B CN 105542496 B CN105542496 B CN 105542496B CN 201610125150 A CN201610125150 A CN 201610125150A CN 105542496 B CN105542496 B CN 105542496B
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parts
asphalt
waterproof material
agent
asphalt waterproof
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CN105542496A (en
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翟根旺
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Hebei Jiaotou Special Materials Technology Co.,Ltd.
Hengshui Hengfeng Yick Road Asphalt Science & Technology Co ltd
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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
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2317/00—Characterised by the use of reclaimed rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

The invention discloses a kind of uncured rubber-asphalt waterproof material and preparation method thereof, uncured rubber-asphalt waterproof material, include the raw materials of following parts by weight：5 15 parts of 30 70 parts of basic asphalt, 15 40 parts of waste tyre rubber powder, 0.25 1.0 parts of solution sulphur agent, 0.8 4 parts of composite modifier, 0.5 5 parts of softening agent, 0.25 3 parts of crosslinking agent and filler, the wherein particle diameter of waste tyre rubber powder is 20 80 mesh；Preparation method comprises the following steps：Raw material prepares, hot melt, mixture homogenization；Crosslinking agent and filler are finally added into conservation tank successively according to above-mentioned parts by weight, and uncured rubber-asphalt waterproof material is formed after being stirred 15 20 minutes；The present invention by waste tyre rubber powder directly in hard pitch medium by solving the effect of sulphur agent through high cutting homogenizer circulation shear desulfurization, rubber molecule is set to be dispersed in linear structure in asphalt system, then the effect of crosslinking agent is passed through, with forming stable solid netted colloform texture together with filler, properties of product are more stable.

Description

Uncured rubber-asphalt waterproof material and preparation method thereof
Technical field
The present invention relates to waterproof building material technical field, more particularly to a kind of uncured rubber-asphalt waterproof material and its preparation Method.
Background technology
According to incompletely statistics, China's damaged tire yield in 2014 reaches up to ten million tons, and large-scale junked tire is to the mankind Living environment cause serious black pollution.Harmless treatment to junked tire using be social development there is an urgent need to
Transportation industry is used for highway construction and maintenance construction using waste tyre rubber powder as asphalt modifier at present turns into hair Exhibition trend, but it is limited to existing technical merit, or being the simple swelling mixing of rubber powder and pitch, rubber powder is deposited as just filler Used in asphalt system, its performance is not in full use；Modified technique is complicated, and rubber powder needs highly energy-consuming, high dirt The desulfurization process of dye, higher production cost constrain waste tyre rubber powder and used in the large area of highway industry.
In industry and residential construction area, otherwise conventional waterproof material can not meet that structure causes to the needs of deformation quantity Waterproof fails, or cost is high, durability can not meet that the pot life of structure requires.Therefore, it is badly in need of developing a kind of property Valency is than high, good endurance waterproof material.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of uncured rubber-asphalt waterproof material, and waste tyre rubber powder is straight It is connected in hard pitch medium by the effect that solves sulphur agent through high cutting homogenizer circulation shear desulfurization, makes rubber molecule with linear Even structure is dispersed in asphalt system, and then by the effect of crosslinking agent, stable solid netted glue is formed together with filler Body structure, properties of product are more stable.
The technical problems to be solved by the invention are to additionally provide a kind of side for preparing uncured rubber-asphalt waterproof material Method, it can avoid needing complex process caused by first waste tyre rubber powder desulfurization is reused, cost high in conventional produce Shortcoming, while avoid the defects of waste tyre rubber powder can not directly give full play to the miscible caused performance of pitch.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of uncured rubber-asphalt waterproof material Material, include the raw material of following parts by weight：Basic asphalt 30-70 parts, waste tyre rubber powder 15-40 parts, sulphur agent 0.25-1.0 parts are solved, Composite modifier 0.8-4 parts, softening agent 0.5-5 parts, crosslinking agent 0.25-3 parts and filler 5-15 parts, the wherein grain of waste tyre rubber powder Footpath is 20-80 mesh.
The basic asphalt is bi tumenf orr oad, tar asphalt or crude oil catalytic slurry.
The solution sulphur agent is pentachlorothiophenol or diphenyl disulfide.
The composite modifier be styrene-butadiene block copolymer, PSB, polyethylene, One or more kinds of combinations in polypropylene and its derivative.
The softening agent is one in aromatic naphtha, Petropols and catalytic cracked oil pulp, tall oil, pine tar and coal tar Kind or two or more combinations.
The crosslinking agent is tetramethylthiuram disulfide.
The filler be particle diameter not less than in the carbon blacks of 325 mesh, clay, calcium carbonate, bentonite it is one or two kinds of with On combination.
In order to solve the above technical problems, the present invention also adopts the technical scheme that providing one kind prepares uncured rubber asphalt The method of waterproof material, comprises the following steps：The first step：Raw material prepares, and prepares raw material by following parts by weight according to total amount：Base Plinth pitch 30-70 parts, waste tyre rubber powder 15-40 parts, solve sulphur agent 0.25-1.0 parts, composite modifier 0.8-4 parts, softening agent 0.5- 5 parts, crosslinking agent 0.25-3 parts and filler 5-15 parts, the wherein particle diameter of waste tyre rubber powder is 20-80 mesh；
Second step：Hot melt, basic asphalt is added in the agitator tank with heating function by above-mentioned parts by weight, and progressively 180 DEG C -200 DEG C are warming up to, the waste tyre rubber powders of above-mentioned parts by weight, solution sulphur agent are sequentially added in heating process, compound is changed Property agent and softening agent, after heating-up temperature reaches 180 DEG C -200 DEG C, insulated and stirred 35-50 minutes form colloid；
3rd step：Mixture homogenization, the mixture high cutting homogenizer circulation shear that second step is formed, is sheared to colloid Surface it is smooth without obvious rubber particle when, by colloid be pumped into agitating function conservation tank；
4th step：Crosslinking agent and filler are added into conservation tank successively according to above-mentioned parts by weight, and are stirred 15-20 points Uncured rubber-asphalt waterproof material is formed after clock.
It is using beneficial effect caused by above-mentioned technical proposal：Waste tyre rubber powder in the waterproof material is directly in height Make rubber molecule equal with linear structure through high cutting homogenizer circulation shear desulfurization by the effect that solves sulphur agent in warm pitch medium It is even to be dispersed in asphalt system, then by the effect of crosslinking agent, stable solid netted colloform texture is formed together with filler, Properties of product are more stable, moreover, because increase softening agent so that the product is in uncured state all the time, can be well Adapt to the deformation requirement of structure, good endurance.
It is using beneficial effect caused by above-mentioned technical proposal：The production method by basic asphalt, waste tyre rubber powder, The agent of solution sulphur, composite modifier, softening agent composition are heated to 180 ~ 200 DEG C of stirring insulations and are not less than 40 minutes, through high speed shear Machine shear to colloid surface it is smooth, without obvious rubber grain after, injection band stir reserve tank, metered crosslinking agent, filler Stirring development is not less than 15 minutes, and it can avoid needing caused by first waste tyre rubber powder desulfurization is reused in conventional produce The shortcomings that complex process, high cost, while avoid waste tyre rubber powder and directly can not fully be sent out with the miscible caused performance of pitch The defects of waving.
Embodiment
Technical scheme is clearly and completely described with reference to the embodiment of the present invention, it is clear that described Embodiment be only the present invention part of the embodiment, rather than whole embodiment.Based on the embodiment in the present invention, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention The scope of protection.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with It is different from other manner described here using other to implement, those skilled in the art can be without prejudice to intension of the present invention In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
The invention discloses a kind of uncured rubber-asphalt waterproof material, include the raw material of following parts by weight：Basis drip Blue or green 30-70 parts, waste tyre rubber powder 15-40 parts, solution sulphur agent 0.25-1.0 parts, composite modifier 0.8-4 parts, softening agent 0.5-5 parts, Crosslinking agent 0.25-3 parts and filler 5-15 parts, the wherein particle diameter of waste tyre rubber powder are 20-80 mesh；The basic asphalt is road stone Oil asphalt, tar asphalt or crude oil catalytic slurry；The solution sulphur agent is pentachlorothiophenol or diphenyl disulfide；It is described compound to change Property agent is styrene-butadiene block copolymer（SBS）, PSB（SBR）, polyethylene, polypropylene and One or more kinds of combinations in its derivative；The softening agent be aromatic naphtha, Petropols and catalytic cracked oil pulp, One or more kinds of combinations in tall oil, pine tar and coal tar；The crosslinking agent is that the tetramethyl autumn is blue Nurse, the filler are particle diameter not less than one or more kinds of groups in the carbon black of 325 mesh, clay, calcium carbonate, bentonite Close.
For the present invention detailed further, three specific embodiments are enumerated herein, but the invention is not limited in following Embodiment.
Example one：By taking the uncured rubber-asphalt waterproof material 1000kg of the production present invention as an example, every part is 10kg, used Raw material proportioning is：74.5 parts of basic asphalt, 16.5 parts of rubber powder, 0.25 part of solution sulphur agent, 1 part of composite modifier, 1 part of softening agent, friendship Join 0.25 part of agent, 6.5 parts of filler, wherein basic asphalt, which is attached most importance to, hands over 70# asphalt, and rubber powder specification is the mesh damaged tire of bias tire 60 Rubber powder, solution sulphur agent are pentachlorothiophenol, and composite modifier SBS, softening agent is pine tar, and crosslinking agent is that the tetramethyl autumn is blue Nurse, filler are 1250 mesh precipitated calcium carbonates；Following steps are used during specific production：
（1）, will be load weighted useless during continuing heating by the metered agitator tank with heating system of hot-melt asphalt Tire glue powder, softening agent, composite modifier, solution sulphur agent put into agitator tank successively, and temperature reaches 180 DEG C and starts timing not less than 40 Minute, during which maximum temperature is no more than 200 DEG C；
（2）It is smooth without obvious rubber to colloid surface by the high cutting homogenizer circulation shear of the mixture in agitator tank Conservation tank or transfer tank with stirring are pumped into during particulate；
（3）Load weighted crosslinking agent, filler are added into colloid stirring to be not less than 15 minutes.
Example two：By taking the uncured rubber-asphalt waterproof material 1000kg of the production present invention as an example, every part is 10 kg, used Raw material proportioning be：63 parts of basic asphalt, 21 parts of waste tyre rubber powder, 0.67 part of solution sulphur agent, 1.26 parts of composite modifier, softening agent 4.2 parts, 1.3 parts of crosslinking agent, 8.53 parts of filler, wherein basic asphalt is 110# asphalt, the selection and preparation of remaining raw material Method is the same as example one.
Example three：By taking the uncured rubber-asphalt waterproof material 1000kg of the production present invention as an example, every part is 10 kg, used Raw material proportioning be：54.4 parts of basic asphalt, 27.2 parts of waste tyre rubber powder, 0.816 part of solution sulphur agent, 0.816 part of composite modifier, 2.86 parts of softening agent, 1.63 parts of crosslinking agent, 12.278 parts of filler, wherein basic asphalt are crude oil catalytic slurry, rubber powder 30 Mesh cross-ply rubber powder, the selection of remaining raw material and preparation method are the same as example one.
The uncured rubber-asphalt waterproof material of the present invention possesses following characteristic：
（1）To the adaptability of malformation：Uncured rubber asphalt material has superior ductility and bonding in itself Property, sub-surface strain cracking and structure, the complicated deformation of privileged sites are can adapt to, waterproof will not be caused because of malformation Layer is damaged.
In work China Democratic National Construction Association field, when complex waterproof layer is formed together with coiled material, uncured rubber asphalt can absorb whole changes Shape stress, the effect that waterproof roll does not almost stress ensure that whole complex waterproof layer keeps integrality for a long time.
（2）Pliability is good, and cohesive force is strong, and self-healing property is good：Can be in humidityBasal planeConstruction, and can be bonded with any foreign matter；Prolong Stretch rateHeight, deformed suitable for basic unit；During construction even if occur waterproof layer breakage also can self-healing, maintain complete waterproof layer.It is resistance to Long property is good, and cohesive force is strong, never solidifies.Solidfied material content is more than 99%.
It is real to above-mentioned typical case in order to be illustrated to the performance of presently disclosed uncured rubber-asphalt waterproof material Example has carried out lot of experiments, according to Ministry of Communications ministry standard JTJ052-2000《Highway engineering Asphalt Mixture Experiment code》Enter Performance detection is gone, as a result as shown in table 1：
Table 1
Experiment proves that the product according to the uncured rubber-asphalt waterproof material producing process of the present invention and formula production is complete Meet traffic ministry standard JT/T 798-2001《Highway engineering waste rubber tyre powder rubber asphalt》Technical requirements, for highway construction Construction of waterproof layer and highway maintenance crushed stone sealing waterproof homework possess good pavement performance.
Lot of experiments is carried out to above-described embodiment according to the JC/T 2216-2014 test methods recommended simultaneously, its result Meet《Uncured rubber asphalt waterproof coating》Generic specifications, referring specifically to table 2.
Table 2
In a word, uncured rubber-asphalt waterproof material provided by the present invention is used to improve highway construction and care field The durability of interlayer waterproof and crushed stone sealing technique, it is a kind of rubber asphalt waterproof coating of high performance-price ratio, for industry and the people Handle operation with buildings waterproof, avoid it is conventional first by the shortcomings that rubber powder desulfurization reuses caused complex process, cost is high, together When avoid waste tyre rubber powder directly with pitch it is miscible caused by performance can not give full play to the defects of.
Present invention also offers a kind of method for preparing uncured rubber-asphalt waterproof material, comprise the following steps：First Step：Raw material prepares, and prepares raw material by following parts by weight according to total amount：Basic asphalt 30-70 parts, waste tyre rubber powder 15-40 parts, Sulphur agent 0.5-1.0 parts, composite modifier 1-4 parts, softening agent 0.5-5 parts, crosslinking agent 0.5-3 parts and filler 5-15 parts are solved, wherein The particle diameter of waste tyre rubber powder is 20-80 mesh；
Second step：Hot melt, basic asphalt is added in the agitator tank with heating function by above-mentioned parts by weight, and progressively 180 DEG C -200 DEG C are warming up to, the waste tyre rubber powders of above-mentioned parts by weight, solution sulphur agent are sequentially added in heating process, compound is changed Property agent and softening agent, after heating-up temperature reaches 180 DEG C -200 DEG C, insulated and stirred 35-50 minutes form colloid；
3rd step：Mixture homogenization, the mixture high cutting homogenizer circulation shear that second step is formed, is sheared to colloid Surface it is smooth without obvious rubber particle when, by colloid be pumped into agitating function conservation tank；
4th step：Crosslinking agent and filler are added into conservation tank successively according to above-mentioned parts by weight, and are stirred 15-20 points Uncured rubber-asphalt waterproof material is formed after clock.
Uncured rubber-asphalt waterproof material is produced using this method, waste tyre rubber powder leads to directly in hard pitch medium The effect of solution sulphur agent is crossed through high cutting homogenizer circulation shear desulfurization, rubber molecule is dispersed in pitch body with linear structure In system.Then by the effect of crosslinking agent, stable solid netted colloform texture is formed together with filler.Using present invention side Method produces uncured rubber-asphalt waterproof material, waste tyre rubber powder desulfurization, scattered, crosslinking integration, process intensification, properties of product It is stable.The special desulfurization process of numerous and diverse shoddy is saved simultaneously, saves energy consumption.

Claims (7)

  1. A kind of 1. method for preparing uncured rubber-asphalt waterproof material, it is characterised in that：The uncured rubber-asphalt waterproof Material includes the raw material of following parts by weight：Basic asphalt 30-70 parts, waste tyre rubber powder 15-40 parts, solution sulphur agent 0.25-1.0 Part, composite modifier 0.8-4 parts, softening agent 0.5-5 parts, crosslinking agent 0.25-3 parts and filler 5-15 parts, wherein waste tyre rubber powder Particle diameter be 20-80 mesh, its preparation method comprises the following steps：
    The first step：Raw material prepares, and prepares raw material by following parts by weight according to total amount：Basic asphalt 30-70 parts, waste tyre rubber powder 15-40 parts, solve sulphur agent 0.25-1.0 parts, composite modifier 0.8-4 parts, softening agent 0.5-5 parts, crosslinking agent 0.25-3 parts and filler The particle diameter of 5-15 parts, wherein waste tyre rubber powder is 20-80 mesh；
    Second step：Hot melt, basic asphalt is added in the agitator tank with heating function by above-mentioned parts by weight, and progressively heated up To 180 DEG C -200 DEG C, waste tyre rubber powder, the agent of solution sulphur, the composite modifier of above-mentioned parts by weight are sequentially added in heating process And softening agent, after heating-up temperature reaches 180 DEG C -200 DEG C, insulated and stirred 35-50 minutes form colloid；
    3rd step：Mixture homogenization, the mixture high cutting homogenizer circulation shear that second step is formed, is sheared to colloid surface It is smooth without obvious rubber particle when, by colloid be pumped into agitating function conservation tank；
    4th step：Crosslinking agent and filler are added into conservation tank successively according to above-mentioned parts by weight, and after being stirred 15-20 minutes Form uncured rubber-asphalt waterproof material.
  2. 2. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The basic asphalt is road Asphalt, tar asphalt or crude oil catalytic slurry.
  3. 3. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The solution sulphur agent is pentachloro- sulphur Phenol or diphenyl disulfide.
  4. 4. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The composite modifier is benzene One kind in ethylene-butadiene block copolymer, PSB, polyethylene, polypropylene and its derivative or The two or more combination of person.
  5. 5. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The softening agent is aromatic hydrocarbons One or more kinds of combinations in oil, Petropols and catalytic cracked oil pulp, tall oil, pine tar and coal tar.
  6. 6. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The crosslinking agent is curing Tetra methylthiuram.
  7. 7. uncured rubber-asphalt waterproof material according to claim 1, it is characterised in that：The filler is that particle diameter is not low One or more kinds of combinations in the carbon black of 325 mesh, clay, calcium carbonate, bentonite.
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CN106221250A (en) * 2016-08-15 2016-12-14 安庆越球建筑防水材料有限公司 A kind of rubber modified asphalt waterproof material
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CN109536025A (en) * 2017-08-02 2019-03-29 中国石油化工股份有限公司 Uncured rubber asphalt waterproof coating and preparation method thereof
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