CN106146955A - A kind of preparation method and application of reclaimed rubber latex - Google Patents
A kind of preparation method and application of reclaimed rubber latex Download PDFInfo
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- CN106146955A CN106146955A CN201510177016.4A CN201510177016A CN106146955A CN 106146955 A CN106146955 A CN 106146955A CN 201510177016 A CN201510177016 A CN 201510177016A CN 106146955 A CN106146955 A CN 106146955A
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Abstract
The invention discloses preparation method, application and the application process of a kind of reclaimed rubber latex.This reclaimed rubber latex is on the basis of rubber plastic blend technology, utilizes emulsion dispersion technology to be prepared from.Utilize rubber plastic blend technology to prepare PE modified reclaimed rubber, it is achieved performance complement each other, compensate for being used alone the shortcoming of reclaimed rubber, for we providing a class for improving the New Regenerated glue material of cement pavement performance.The reclaimed rubber latex disclosed by the invention application on rubberized concrete road surface and application process thereof, the reclaimed rubber latex that can make the present invention is applicable to the function modified of rubberized concrete road surface, and replacing asphalt improves the weatherability on road surface, durability, intensity, elasticity and plasticity.
Description
Technical field
The present invention relates to the preparation method and applications of a kind of reclaimed rubber latex, belong to garbage recycling field in field of Environment Protection.
Background technology
China is that a rubber consumes big country, and the Year's consumption of rubber is sure to occupy No. 1 in the world in continuous 11 years；Also it is the country of a rubber sources shortage simultaneously.In today that natural resources is day by day deficient and the energy is the most in short supply, walk the road that China's scrap rubber recycles, waste old is reclaimed, make good use of, turn waste into wealth, turn harm into good, its product is widely used in the fields such as rubber, traffic and building with extending goods as important regenerated resources, become the problem the severeest realizing China's rubber industry recycling economy and Faced In Sustainable Development, had important practical significance.
Reclaimed rubber produces and utilizes and can preferably solve China's waste old problem of environmental pollution and rubber sources scarcity problem, but reclaimed rubber enterprise generally exists, and added value of product is low, profit is low, energy resource consumption is big, product is difficult to shortcomings such as being used alone.For increasing the added value of product of reclaimed rubber, reclaimed rubber is prepared as latex by an effective method exactly, and for latex saves the properties of dry glue, relatively dry glue, latex technology is simple, be prone to preparation.Owing in the course of processing, rubber molecule is almost without by external force destruction, latex remains the original premium properties of reclaimed rubber, may be used for producing some dry glue and is not caned or be difficult to the product produced, and purposes is relatively broad.
Currently for the preparation and application of reclaimed rubber rubber cement, study less.Having the preparation of part document report reclaimed rubber latex, mainly use the method that organic solvent dissolves reemulsification, organic solvent is harmful, pollute environment, uses process dangerous, and cost is high, therefore limits the application of latex.It addition, directly by reclaimed rubber with dispersant is mixing, stir into latex, prepared latex particle grain size out is big, and particle diameter skewness, affects its serviceability.If simple and effective preparation method can be used by reclaimed rubber emulsion dispersion in an aqueous medium, then can be substantially reduced production cost, application prospect is the most wide.
It is known that, fast development along with highway in China traffic transport industry, highway easily occurs in that rut, gathers around the diseases such as bag, peeling, crack and antiskid performance are not enough, is primarily due to asphalt concrete road surface and cannot meet the requirement of the high-temperature stability of highroad carrier road pavement, low-temperature cracking-resistance, skid resistance and durability.The performance that rubber is good, can make up disadvantages mentioned above just.At present, the major way utilizing rubber to improve highway function is interpolation waste rubber powder in bituminous concrete, yet there are no and is modified cement pavement by reclaimed rubber latex, and replacing asphalt improves the weatherability on road surface, durability, intensity, elasticity and plasticity.
Summary of the invention
The primary and foremost purpose of the present invention is to provide the preparation method of a kind of reclaimed rubber latex.This preparation method, on the basis of rubber plastic blend technology, utilizes emulsion dispersion technology to be prepared as reclaimed rubber latex.Wherein, use PE modified reclaimed rubber with utilizing rubber plastic blend technological innovation, it is achieved performance complement each other, compensate for being used alone the shortcoming of reclaimed rubber, for we providing a class for improving the New Regenerated glue material of cement pavement performance.
Another object of the present invention is to provide the application on rubberized concrete road surface of a kind of above-mentioned reclaimed rubber latex and application process thereof.The reclaimed rubber latex of the present invention is applicable to the function modified of rubberized concrete road surface, and replacing asphalt improves the weatherability on road surface, durability, intensity, elasticity and plasticity.
The purpose of the present invention is realized by following proposal:
The preparation method of a kind of reclaimed rubber latex that the present invention provides, comprises the following steps:
(1) reclaimed rubber/polyethylene blend: use rubber plastic blend technology, reclaimed rubber is plasticated blended with polyethylene on rubber mixing machine, obtains reclaimed rubber/polyethylene blend；
(2) preparation of reclaimed rubber latex: mix dispersant in reclaimed rubber/polyethylene blend, plasticate on rubber mixing machine blended, add and water-dispersible obtain reclaimed rubber latex.
Reclaimed rubber described in step (1) is 1:(0.05 ~ 1 with the mass ratio of polyethylene)；Described plasticating is blended as, at 55 ~ 90 DEG C, lasting 5 ~ 30min；Reclaimed rubber described in step (1) is the reclaimed rubber that waste tire of automobile rubber obtains through desulfurization；Density of pe described in step (1) is 948 ~ 960kg/m3。
Preferably, described in step (2), the mass ratio of reclaimed rubber/polyethylene blend and dispersant is 1:(0.05 ~ 0.15)；Described plasticating is blended as, at 40 ~ 80 DEG C, lasting 10 ~ 40min；The usage amount of described water makes final reclaimed rubber latex solid content maintain 45%；Preferably, the dispersant described in step (2) is sodium stearate, at least one in hard acid amide, potassium oleate, oleic acid amine, triethanolamine oleate.
Present invention also offers the application on rubberized concrete road of a kind of above-mentioned reclaimed rubber latex and application process thereof, concrete technology step is:
(1) presulfurization of reclaimed rubber latex: by sulfur, potassium hydroxide, activator, age resistor, accelerator, dispersant and water mixing, with ball mill grinding, obtain vulcanized disperse body；Reclaimed rubber latex is mixed with vulcanized disperse body, presulfurization under the conditions of agitating heating, obtain presulfurization reclaimed rubber latex；
(2) mixing of rubberized concrete: presulfurization reclaimed rubber latex, cement, rubble and water being added in forced mixer and stir, discharging obtains rubberized concrete；
(3) the pouring and maintenance of rubberized concrete: use means of transport to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, compacting machine is used to be compacted by concrete floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, when environment mean temperature is more than 10 DEG C, water every day more than twice.
Preferably, vulcanized disperse body described in step (1) is prepared in system, represent with mass parts, 100 ~ 150 parts of sulfur, potassium hydroxide 1 ~ 2 part, 50 ~ 100 parts of activator, 100 ~ 150 parts of age resistor, accelerator 100 parts, diffusant 25 ~ 40 parts, the usage amount of described water makes final vulcanized disperse body solid content maintain 50%；In step (1), presulfurization reclaimed rubber latex is prepared in system, represents with mass parts, 100 parts of reclaimed rubber latex, vulcanized disperse body 8 ~ 15 parts；Described agitating heating condition preferably reacts 0.5 ~ 3h at 40 ~ 60 DEG C.
In order to the present invention is better achieved:
Described activator is at least one in zinc oxide, zinc carbonate, triethanolamine；
Described age resistor is at least one in antioxidant A, antioxidant 4020, anti-aging agent RD；
Described accelerator is at least one in accelerant B Z, accelerator DZ, accelerant C TP；
Described diffusant is dispersing agent NNO.
In rubberized concrete composition described in step (2), represent with mass parts, 100 ~ 300 parts of presulfurization reclaimed rubber latex, cement 300 ~ 400 parts, rubble 1000 ~ 1500 parts, 100 ~ 150 parts of water；Described cement is Portland cement；Described ballast grain sizes is 5 ~ 50mm.
Relative to prior art, the invention have the advantages that and beneficial effect:
1, reclaimed rubber latex is applied to highway construction field by the present invention, it is achieved that the high-valued recycling of reclaimed rubber resource, extends the application of waste old；
2, the present invention uses rubber plastic blend technology, utilizes PE modified reclaimed rubber, it is achieved performance complement each other, compensate for being used alone the shortcoming of reclaimed rubber, for we providing a class for improving the New Regenerated glue material of cement pavement performance.
Detailed description of the invention
Below by examples of implementation, the detailed description of the invention of the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
1
。
The preparation of reclaimed rubber latex: 100 mass parts reclaimed rubbers and 5 mass parts polyethylene (density is 910kg/m3) are plasticated blended on rubber mixing machine, at 55 DEG C, lasts 30min, obtain reclaimed rubber/polyethylene blend；In 100 mass parts reclaimed rubbers/polyethylene blend, mix 15 mass parts dispersant sodium stearates, rubber mixing machine is plasticated blended, at 80 DEG C, last 40min, add the water-dispersible solid content that obtains and maintain 45% reclaimed rubber latex.Prepared reclaimed rubber latex appearance black, exquisiteness are homogeneous, stand 1 year non-breakdown of emulsion, and latex coagulation point is-1 DEG C, and particle size is between 0.01 ~ 1 micron.
The application on rubberized concrete road surface: by 100 parts of sulfur, 0.2 part of potassium hydroxide, 50 parts of activator, 100 parts of antioxidant As, 100 parts of accelerator DZs, 25 parts of dispersing agent NNOs and water mixing, with ball mill grinding, obtain solid content and maintain the vulcanized disperse body of 50%；Being under 1:0.08 proportioning by reclaimed rubber latex and vulcanized disperse body mass ratio, mixed with vulcanized disperse body by reclaimed rubber latex, presulfurization under the conditions of agitating heating, agitating heating condition is reaction 3h at 40 DEG C, obtains presulfurization reclaimed rubber latex；100 parts of presulfurization reclaimed rubber latex, 300 parts of Portland cements, 1000 parts of rubbles (particle diameter is 5 ~ 50mm) and 100 parts of water being added in forced mixer and stir, discharging obtains rubberized concrete；Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, use compacting machine concrete is compacted floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, water every day three times.
Embodiment
2
。
The preparation of reclaimed rubber latex: 100 mass parts reclaimed rubbers and 100 mass parts polyethylene (density is 960kg/m3) are plasticated blended on rubber mixing machine, at 90 DEG C, lasts 5min, obtain reclaimed rubber/polyethylene blend；In 100 mass parts reclaimed rubbers/polyethylene blend, mix 5 mass parts dispersant hard acid amides, rubber mixing machine is plasticated blended, at 40 DEG C, last 10min, add the water-dispersible solid content that obtains and maintain 45% reclaimed rubber latex.Prepared reclaimed rubber latex appearance black, exquisiteness are homogeneous, stand 1 year non-breakdown of emulsion, and latex coagulation point is-1 DEG C, and particle size is between 0.01 ~ 2 micron.
The application on rubberized concrete road surface: by 100 parts of sulfur, 0.1 part of potassium hydroxide, 100 parts of activator, 150 parts of antioxidant 4020s, 100 parts of accelerant B Z, 40 parts of dispersing agent NNOs and water mixing, with ball mill grinding, obtain solid content and maintain the vulcanized disperse body of 50%；Being under 1:0.15 proportioning by reclaimed rubber latex and vulcanized disperse body mass ratio, mixed with vulcanized disperse body by reclaimed rubber latex, presulfurization under the conditions of agitating heating, agitating heating condition is reaction 0.5h at 60 DEG C, obtains presulfurization reclaimed rubber latex；300 parts of presulfurization reclaimed rubber latex, 300 ~ 400 parts of Portland cements, 1500 parts of rubbles (particle diameter is 5 ~ 50mm) and 150 parts of water being added in forced mixer and stir, discharging obtains rubberized concrete；Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, use compacting machine concrete is compacted floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, water every day three times.
Embodiment
3
。
The preparation of reclaimed rubber latex: 100 mass parts reclaimed rubbers and 50 mass parts polyethylene (density is 930kg/m3) are plasticated blended on rubber mixing machine, at 70 DEG C, lasts 20min, obtain reclaimed rubber/polyethylene blend；In 100 mass parts reclaimed rubbers/polyethylene blend, mix 10 mass parts dispersant potassium oleates, rubber mixing machine is plasticated blended, at 60 DEG C, last 30min, add the water-dispersible solid content that obtains and maintain 45% reclaimed rubber latex.Prepared reclaimed rubber latex appearance black, exquisiteness are homogeneous, stand 1 year non-breakdown of emulsion, and latex coagulation point is-1 DEG C, and particle size is between 0.01 ~ 1 micron.
The application on rubberized concrete road surface: by 100 parts of sulfur, 0.15 part of potassium hydroxide, 75 parts of activator zinc carbonates, 120 parts of anti-aging agent RDs, 100 parts of accelerant C TP, 30 parts of dispersing agent NNOs and water mixing, with ball mill grinding, obtain solid content and maintain the vulcanized disperse body of 50%；Being under 1:0.1 proportioning by reclaimed rubber latex and vulcanized disperse body mass ratio, mixed with vulcanized disperse body by reclaimed rubber latex, presulfurization under the conditions of agitating heating, agitating heating condition is reaction 2h at 50 DEG C, obtains presulfurization reclaimed rubber latex；200 parts of presulfurization reclaimed rubber latex, 350 parts of Portland cements, 1200 parts of rubbles (particle diameter is 5 ~ 50mm) and 130 parts of water being added in forced mixer and stir, discharging obtains rubberized concrete；Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, use compacting machine concrete is compacted floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, water every day three times.
Embodiment
4
。
The preparation of reclaimed rubber latex: 100 mass parts reclaimed rubbers and 20 mass parts polyethylene (density is 940kg/m3) are plasticated blended on rubber mixing machine, at 70 DEG C, lasts 20min, obtain reclaimed rubber/polyethylene blend；In 100 mass parts reclaimed rubbers/polyethylene blend, mix 6 mass parts dispersant oleic acid amine, rubber mixing machine is plasticated blended, at 70 DEG C, last 30min, add the water-dispersible solid content that obtains and maintain 45% reclaimed rubber latex.Prepared reclaimed rubber latex appearance black, exquisiteness are homogeneous, stand 1 year non-breakdown of emulsion, and latex coagulation point is-1 DEG C, and particle size is between 0.01 ~ 2 micron.
The application on rubberized concrete road surface: by 100 parts of sulfur, 0.1 part of potassium hydroxide, 50 parts of activator triethanolamine, 100 parts of antioxidant 4020s, 100 parts of accelerator DZs, 25 parts of dispersing agent NNOs and water mixing, with ball mill grinding, obtain solid content and maintain the vulcanized disperse body of 50%；Being under 1:0.09 proportioning by reclaimed rubber latex and vulcanized disperse body mass ratio, mixed with vulcanized disperse body by reclaimed rubber latex, presulfurization under the conditions of agitating heating, agitating heating condition is reaction 1h at 60 DEG C, obtains presulfurization reclaimed rubber latex；200 parts of presulfurization reclaimed rubber latex, 300 parts of Portland cements, 1100 parts of rubbles (particle diameter is 5 ~ 50mm) and 120 parts of water being added in forced mixer and stir, discharging obtains rubberized concrete；Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, use compacting machine concrete is compacted floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, water every day three times.
Embodiment
5
。
The preparation of reclaimed rubber latex: 100 mass parts reclaimed rubbers and 15 mass parts polyethylene (density is 950kg/m3) are plasticated blended on rubber mixing machine, at 80 DEG C, lasts 30min, obtain reclaimed rubber/polyethylene blend；In 100 mass parts reclaimed rubbers/polyethylene blend, mix 12 mass parts dispersant triethanolamine oleates, rubber mixing machine is plasticated blended, at 80 DEG C, last 30min, add the water-dispersible solid content that obtains and maintain 45% reclaimed rubber latex.Prepared reclaimed rubber latex appearance black, exquisiteness are homogeneous, stand 1 year non-breakdown of emulsion, and latex coagulation point is-1 DEG C, and particle size is between 0.01 ~ 1 micron.
The application on rubberized concrete road surface: by 100 parts of sulfur, 0.2 part of potassium hydroxide, 90 parts of activator, 140 parts of antioxidant As, 100 parts of accelerant B Z, 40 parts of dispersing agent NNOs and water mixing, with ball mill grinding, obtain solid content and maintain the vulcanized disperse body of 50%；Being under 1:0.15 proportioning by reclaimed rubber latex and vulcanized disperse body mass ratio, mixed with vulcanized disperse body by reclaimed rubber latex, presulfurization under the conditions of agitating heating, agitating heating condition is reaction 3h at 60 DEG C, obtains presulfurization reclaimed rubber latex；300 parts of presulfurization reclaimed rubber latex, 300 parts of Portland cements, 1500 parts of rubbles (particle diameter is 5 ~ 50mm) and 150 parts of water being added in forced mixer and stir, discharging obtains rubberized concrete；Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, with spreading smoother, rubberized concrete is shakeout again, rubberized concrete thickness wants uniformity, pave smooth after, use compacting machine concrete is compacted floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, water every day three times.
Claims (8)
1. according to the preparation method of a kind of reclaimed rubber latex, it is characterised in that comprise the steps:
(1) reclaimed rubber/polyethylene blend:
Use rubber plastic blend technology, reclaimed rubber is plasticated blended with polyethylene on rubber mixing machine, obtains reclaimed rubber/polyethylene blend；
(2) preparation of reclaimed rubber latex:
In reclaimed rubber/polyethylene blend, mix dispersant, rubber mixing machine is plasticated blended, add and water-dispersible obtain reclaimed rubber latex.
The preparation method of reclaimed rubber latex the most according to claim 1, it is characterised in that: reclaimed rubber described in step (1) is 1:(0.05 ~ 1 with the mass ratio of polyethylene)；Described plasticating is blended as, at 55 ~ 90 DEG C, lasting 5 ~ 30min.
The preparation method of reclaimed rubber latex the most according to claim 1, it is characterised in that: described in step (2), the mass ratio of reclaimed rubber/polyethylene blend and dispersant is 1:(0.05 ~ 0.15)；Described plasticating is blended as, at 40 ~ 80 DEG C, lasting 10 ~ 40min；The usage amount of described water makes final reclaimed rubber latex solid content maintain 45%.
The preparation method of reclaimed rubber latex the most according to claim 1, it is characterised in that: the reclaimed rubber described in step (1) is the reclaimed rubber that waste tire of automobile rubber obtains through desulfurization；Density of pe described in step (1) is 948 ~ 960kg/m3；Dispersant described in step (2) is sodium stearate, at least one in hard acid amide, potassium oleate, oleic acid amine, triethanolamine oleate.
5. according to the application on rubberized concrete road surface of the reclaimed rubber latex described in any one of claim 1 ~ 4.
6. one kind according to the application process on rubberized concrete road surface of the reclaimed rubber latex described in any one of claim 1 ~ 4, it is characterised in that comprise the following steps:
(1) presulfurization of reclaimed rubber latex
By sulfur, potassium hydroxide, activator, age resistor, accelerator, dispersant and water mixing, with ball mill grinding, obtain vulcanized disperse body；Reclaimed rubber latex is mixed with vulcanized disperse body, presulfurization under the conditions of agitating heating, obtain presulfurization reclaimed rubber latex；
(2) mixing of rubberized concrete
Presulfurization reclaimed rubber latex, cement, rubble and water being added in forced mixer and stir, discharging obtains rubberized concrete；
(3) the pouring and maintenance of rubberized concrete
Means of transport is used to be transported at pavement construction by the rubberized concrete of stirring, rubberized concrete is paved, tackle basic unit before paving and do wettability treatment, being shakeout by rubberized concrete with spreading smoother, rubberized concrete thickness wants uniformity again, pave smooth after, compacting machine is used to be compacted by concrete floating, maintenance should be carried out by covered with plastic film immediately after rubberized concrete initial set, when environment mean temperature is more than 10 DEG C, water every day more than twice.
The preparation method on rubberized concrete road surface the most according to claim 6, it is characterised in that:
Vulcanized disperse body described in step (1) is prepared in system, represent with mass parts, 100 ~ 150 parts of sulfur, potassium hydroxide 1 ~ 2 part, 50 ~ 100 parts of activator, 100 ~ 150 parts of age resistor, accelerator 100 parts, diffusant 25 ~ 40 parts, the usage amount of described water makes final vulcanized disperse body solid content maintain 50%；
In step (1), presulfurization reclaimed rubber latex is prepared in system, represents with mass parts, 100 parts of reclaimed rubber latex, vulcanized disperse body 8 ~ 15 parts；Described agitating heating condition preferably reacts 0.5 ~ 3h at 40 ~ 60 DEG C；
Described activator is at least one in zinc oxide, zinc carbonate, triethanolamine；
Described age resistor is at least one in antioxidant A, antioxidant 4020, anti-aging agent RD；
Described accelerator is at least one in accelerant B Z, accelerator DZ, accelerant C TP；
Described diffusant is dispersing agent NNO.
The preparation method on rubberized concrete road surface the most according to claim 6, it is characterised in that: in the rubberized concrete composition described in step (2), represent with mass parts, 100 ~ 300 parts of presulfurization reclaimed rubber latex, cement 300 ~ 400 parts, rubble 1000 ~ 1500 parts, 100 ~ 150 parts of water；Described cement is Portland cement；Described ballast grain sizes is 5 ~ 50mm.
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Application publication date: 20161123 |