CN100523065C - Method for grafting and activating powder rubber for modifying to pavement asphalt - Google Patents
Method for grafting and activating powder rubber for modifying to pavement asphalt Download PDFInfo
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- CN100523065C CN100523065C CNB2005100155037A CN200510015503A CN100523065C CN 100523065 C CN100523065 C CN 100523065C CN B2005100155037 A CNB2005100155037 A CN B2005100155037A CN 200510015503 A CN200510015503 A CN 200510015503A CN 100523065 C CN100523065 C CN 100523065C
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- rubber
- grafting
- activating powder
- powder rubber
- pitch
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- 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
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Abstract
The invention discloses a synthetic utilizing method of waste rubber product to obtain grafted active modified tar, which comprises the following steps: grinding waste rubber product into 30-order powder rubber; blending 4-8% softening agent, 0.2-0.5% coking-proof agent, 0.3-0.6% heat stabilizer, 0.5-0.9% activator and 90-95% powder rubber to break chain through high-cutting equipment; obtaining activated powder rubber; stirring the compound of 10-25% activated powder rubber, 60-90% tar, 5-8% dissolving-increasing agent and 8-10% grafting agent through high-speed stirrer; obtaining the product.
Description
Technical field:
The present invention relates to a kind of waste rubber goods comprehensive utilization method.Particularly be used to lay the bituminous method of town road with the grafting and activating powder rubber modification.
Background technology:
It is existing historical for many years that petroleum pitch is used to lay highway, since petroleum pitch self have to due to the susceptibility of temperature, its thermotolerance and winter hardiness are relatively poor, and it is directly used in when building highway, when summer temp was high, often the fusing owing to petroleum pitch made the road surface softening; When winter climate was cold, often the winter hardiness difference owing to petroleum pitch made the road surface that embrittlement take place.Therefore, when utilizing petroleum pitch to build highway, carry out modification, could adapt to round-the-clock variation petroleum pitch.
Utilize the powdered rubber modifying asphalt, improve the performance of bituminous pavement, become the research focus of exploitation ground surface material.But cold method is generally adopted in the production of powdered rubber at present, after being about to waste rubber goods and utilizing liquid nitrogen to carry out deep refrigeration, destroys the molecular structure of its build and it is pulverized, and the cost of this method is very high, is not easy to be extensive use of.The employing normal temperature method that also has, waste rubber goods is carried out Mechanical Crushing at normal temperatures to be ground, the powdered rubber particle diameter that this method obtains is between the 30-40 order, particle is bigger, spray holes is easily stopped up during use, the mix temperature of adding employing is lower, duration of mixing is shorter, powdered rubber and pitch can not present molten state behind the mix, and pitch can not obtain complete modification, improve little to the susceptibility of temperature, still there is the low temperature brittleness cracking, the shortcoming of hot mastication, therefore, powdered rubber is never well used on town road.
Raising along with the social civilization degree, people's the environmental consciousness and the consciousness of resource reutilization are improving constantly, and along with industrial expansion, the quantity of waste rubber goods causes the comprehensive utilization of waste old to become one of important subject in continuous increase.The current waste rubber goods that will abundant utilize again both at home and abroad is as keeping one of grand strategy measure of social sustainable development, and it not only can reduce environmental pollution, waste and old resource can also be fully used.
Especially after the waste rubber goods crushing grinding being become powdered rubber, the widespread use in town road, urban operating mechanism has obvious social and economic benefit.
Summary of the invention:
The present invention aims to provide a kind of bituminous method that is used to lay town road with the grafting and activating powder rubber modification.It utilizes the above powdered rubber of 30 orders to be raw material, it is carried out the grafting and activating modifying asphalt, this modifying asphalt laying road behind heating and melting, can increase cohesiveness with the road base-material, improve the anti-skid wearable performance on road surface, reduction improves elastic recovery properties and ageing resistance and sound absorption property to the susceptibility of temperature.
Method of the present invention is:
One, the preparation of powdered rubber;
Waste rubber goods is carried out pulverizing grinding after the cutting and separating, and the particle diameter of gained powdered rubber is more than 30 orders, is powdered rubber.
Powdered rubber of the present invention also can be the SBS rubber-plastics material.
Two, the preparation of activating powder rubber;
1, the component of modified active agent:
Tenderizer, scorch retarder, thermo-stabilizer, activator;
Wherein:
Tenderizer is an ethylene bottom oil;
Scorch retarder is a stearic acid;
Thermo-stabilizer is oleic acid, calcium oxide;
Activator is a polyalkylbenzene phenol disulphide;
2, according to following each component weight ratio batching;
Tenderizer 4-8
Scorch retarder 0.2-0.5
Thermo-stabilizer 0.3-0.6
Activator 0.5-0.9
Powdered rubber 90-94;
3, the preparation method; Above each component by High shear device, under 140-160 ℃ temperature, is mixed chain rupture, promptly obtain activating powder rubber.
The performance of this activating powder rubber should reach La and stretch Qiang Du ≧ 15Mpa, pulls apart the Chang Shuai of Shen ≧ 500%.
Three, be used to lay the pitch of town road with the grafting and activating powder rubber modification;
1, according to following each component weight ratio batching
Activating powder rubber 10-25
Pitch 60-80
Expanding material 4-8
Grafting agent 5-10
Wherein:
Expanding material is a kautschin,
Grafting agent is a terpine resin.
2, the preparation method; Above each component under 180-220 ℃ temperature, is stirred grafting by homogenizer, be ground to particle diameter≤10 μ m again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification.
Powdered rubber more than 30 orders that the present invention produces with waste rubber goods is a raw material, after adding modified active agent mixing, the particle of powdered rubber expands, increased specific surface area, when by High shear device, to the particle mixing chain rupture of expansible powdered rubber, because expansible rubber particles volume is big, be easier to be cut off, make the rubber molecule degraded to obtain activating powder rubber.
When activating powder rubber mixes with pitch, expanding material, grafting agent and is ground to particle diameter≤10 μ m by colloidal mill, expanding material carries out graft modification with low-molecular-weight grafting agent on the particle of activating powder rubber, make it to have the consistency splendid, strengthened activation rubber particles and bituminous consistency and bridging property with other organic and inorganic materials.
The present invention plastifies the surface of rubber particles, and making has enough molecular chains destroyed in the rubber network, make the surface of rubber particles generate new group simultaneously, thereby it combined with bituminous well, can with the pitch fusion, be dispersed among the pitch.
Reaction principle of the present invention is;
Adopt the modification of activated grafting powdered rubber to be used to lay the pitch of town road, be generally the surface that grafting agent is adsorbed in powdered rubber, form a kind of metastable complex compound or inner complex, make powdered rubber and pitch fusion by its group.
When using product of the present invention-activated grafting powdered rubber modification to be used for road oil to carry out the laying of town road, have the following advantages:
1, waste old is fully utilized, reduced the pollution of waste old to environment.
2, reduced the susceptibility of road surface to temperature, it is sticking soft summer to have improved bituminous pavement, the defective that winter, cracking skidded.
3, improved the absorption of road surface to light and sound, avoided bituminous pavement reflective, the defective that high light is dazzling, and compare with bituminous pavement, under square one, can reduce noise more than 50%.
4, because rubber powder and pitch can fusions, in conjunction with good, therefore, minimizing road surface slungshot, and can shorten braking distance, the raising security.
In sum, the present invention is a kind of bituminous method that is used to lay town road with the grafting and activating powder rubber modification.It utilizes the above powdered rubber of 30 orders to be raw material, it is carried out the grafting and activating modifying asphalt, this modifying asphalt laying road behind heating and melting, can increase cohesiveness with the road base-material, improve the anti-skid wearable performance on road surface, reduction improves elastic recovery properties and ageing resistance and sound absorption property to the susceptibility of temperature.
Embodiment:
Embodiment 1
One, the preparation of powdered rubber;
To pulverize grinding after the waste and used rubber tyre cutting and separating, gained powdered rubber particle diameter is the 30-40 order, is powdered rubber.
Two, the preparation of activating powder rubber;
1, according to following each component weight ratio batching
Tenderizer-ethylene bottom oil 4.2kg;
Scorch retarder-stearic acid 0.3kg;
Thermo-stabilizer-oleic acid, calcium oxide 0.6kg;
Activator-polyalkylbenzene phenol disulphide; 0.9kg
Powdered rubber 94.0kg
2, with above each component 100kg altogether, under 140-160 ℃ of temperature, carry out powder mix by High shear device and be broken to its performance and reach La and stretch Qiang Du ≧ 15Mpa, pull apart the Chang Shuai of Shen ≧ 500%.Promptly obtain the 100kg activating powder rubber.
3, be used to lay the pitch of town road with the grafting and activating powder rubber modification;
According to following each component weight ratio batching
Activating powder rubber 100kg
Pitch 770kg
Expanding material-kautschin 50kg
Grafting agent-terpine resin 80kg
Above each component is total to 1000kg, under 180-220 ℃ of temperature, stirs, be ground to particle diameter≤10 μ m by colloidal mill again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification by homogenizer.
Resulting grafting and activating powder rubber modification is used to lay the pitch of town road, and the result is as follows after testing;
The cold district of project hot-zone ARB-1 warm area ARB-2 ARB-3
25 ℃ 40 60 86 of penetration degree
100g.5s.0.1mm
Softening temperature 62 54 51
Ductility 6 16 26
(4℃.1cm/min)cm
Rebound deformation % 21 12 0.5
4 ℃ of .% 76 76 76 of penetration ratio
Ductility is than 55 55 55
4℃.1cm/min％
Embodiment 2
One, the preparation of powdered rubber;
To pulverize grinding after the waste rubber goods cutting and separating, gained powdered rubber particle dia is the 40-60 order, is powdered rubber.
Two, the preparation of activating powder rubber;
1, according to following each component weight ratio batching
Tenderizer-ethylene bottom oil 7kg
Scorch retarder-stearic acid 0.4kg
Thermo-stabilizer-oleic acid, calcium oxide 0.5kg
Activator-polyalkylbenzene phenol disulphide 0.7kg
Powdered rubber 91.4kg
2, the preparation method; With above each component 100kg altogether, under 140-160 ℃ of temperature, to carry out powder mix by High shear device and be broken to its performance to reach tensile strength be 16Mpa, tensile yield is 550%, promptly obtains the 100kg activating powder rubber.
Three, be used to lay the pitch of town road with the grafting and activating powder rubber modification;
1, according to following each component weight ratio batching
Activating powder rubber 100kg
Pitch 720kg
Kautschin 80kg
Terpine resin 100kg
2, the preparation method; Above each component is total to 1000kg, stirs, be ground to particle diameter≤10 μ m by colloidal mill again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification by homogenizer.
Resultingly be used to lay the pitch of town road with the modification of graft modification powdered rubber, the result is as follows after testing;
The cold district of project hot-zone ARB-1 warm area ARB-2 ARB-3
25 ℃ 50 70 110 of penetration degree
100g.5s.0.1mm
Softening temperature 65 62 60
Ductility 6 16 26 (4 ℃ of .1cm/min) cm
Rebound deformation % 30 24 0.5
4 ℃ of .% 80 80 80 of penetration ratio
Ductility is than 57 57 57
4℃.1cm/min％
The detected result of embodiment 1 and embodiment 2 has all reached the standard of performance (FHA-R-002-1992) of american rubber powder-modified asphalt
Attached: FHA-R-002-1992 thes contents are as follows:
25 ℃ of 25-75 50-100 75-150 of penetration degree
100g.5s.0.1mm
Softening temperature〉54〉49〉43
Ductility〉5〉10〉20
(4℃.1cm/min)cm
Rebound deformation %〉20〉10〉0
4 ℃ of .% of penetration ratio〉75〉75〉75
The ductility ratio〉50〉50〉50
4℃.1cm/min％
Claims (3)
1, a kind of bituminous method that is used to lay town road with the grafting and activating powder rubber modification is characterized in that its method is:
One, the preparation of powdered rubber;
Waste rubber goods is carried out pulverizing grinding after the cutting and separating, and the particle diameter of gained powdered rubber is more than 30 orders, is powdered rubber;
Two, the preparation of activating powder rubber:
(1) component of modified active agent is:
Tenderizer-ethylene bottom oil, scorch retarder-stearic acid, thermo-stabilizer-oleic acid, calcium oxide, activator-polyalkylbenzene phenol disulphide;
(2) according to following each component weight ratio batching;
Tenderizer-ethylene bottom oil 4-8,
Scorch retarder-stearic acid 0.2-0.5,
Thermo-stabilizer-oleic acid, calcium oxide, 0.3-0.6,
Activator-polyalkylbenzene phenol disulphide 0.5-0.9,
Powdered rubber 90-94;
(3) preparation method; Above each component by High shear device, under 140-160 ℃ temperature, is mixed chain rupture, reach La to its performance and stretch Qiang Du ≧ 15Mpa, pull apart the Chang Shuai of Shen ≧ 500%, promptly obtain activating powder rubber;
Three, be used to lay the pitch of town road with the grafting and activating powder rubber modification;
(1) according to following each component weight ratio batching
Activating powder rubber 10-25,
Pitch 60-80,
Expanding material-kautschin 4-8,
Grafting agent-terpine resin 5-10;
(2) preparation method; Above each component under 180-220 ℃ temperature, is stirred grafting by homogenizer, be ground to particle diameter≤10 μ m again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification.
2, according to the described a kind of bituminous method that is used to lay town road with the grafting and activating powder rubber modification of claim 1, it is characterized in that its method is:
One, the preparation of powdered rubber:
To pulverize grinding after the waste and used rubber tyre cutting and separating, gained powdered rubber particle diameter is the 30-40 order, is powdered rubber;
Two, the preparation of activating powder rubber;
(1) according to following each component weight ratio batching:
Tenderizer-ethylene bottom oil 4.2kg,
Scorch retarder-stearic acid 0.3kg,
Thermo-stabilizer-oleic acid, calcium oxide 0.6kg,
Activator-polyalkylbenzene phenol disulphide 0.9kg,
Powdered rubber 94.0kg;
(2) with above each component 100kg altogether, under 140-160 ℃ of temperature, carry out powder mix by High shear device and be broken to its performance and reach La and stretch Qiang Du ≧ 15Mpa, pull apart the Chang Shuai of Shen ≧ 500%, promptly obtain the 100kg activating powder rubber;
Three, be used to lay the pitch of town road with the grafting and activating powder rubber modification;
According to following each component weight ratio batching
Activating powder rubber 100kg,
Pitch 770kg,
Expanding material-kautschin 50kg,
Grafting agent-terpine resin 80kg;
Above each component is total to 1000kg, under 180-220 ℃ of temperature, stirs, be ground to particle diameter≤10 μ m by colloidal mill again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification by homogenizer.
3, according to the described a kind of bituminous method that is used to lay town road with the grafting and activating powder rubber modification of claim 1, it is characterized in that its method is:
One, the preparation of powdered rubber:
To pulverize grinding after the waste rubber goods cutting and separating, gained powdered rubber particle dia is the 40-60 order, is powdered rubber;
Two, the preparation of activating powder rubber:
(1) according to following each component weight ratio batching
Tenderizer-ethylene bottom oil 7kg,
Scorch retarder-stearic acid 0.4kg,
Thermo-stabilizer-oleic acid, calcium oxide 0.5kg,
Activator-polyalkylbenzene phenol disulphide 0.7kg,
Powdered rubber 91.4kg;
(2) preparation method: with above each component 100kg altogether, under 140-160 ℃ of temperature, carry out powder mix by High shear device and be broken to its performance to reach tensile strength be 16Mpa, tensile yield is 550%, promptly obtains the 100kg activating powder rubber;
Three, be used to lay the pitch of town road with the grafting and activating powder rubber modification:
(1) according to following each component weight ratio batching
Activating powder rubber 100kg,
Pitch 720kg,
Kautschin 80kg,
Terpine resin 100kg;
(2) preparation method: above each component is total to 1000kg, stirs, be ground to particle diameter≤10 μ m by colloidal mill again, promptly obtain the pitch that is used to lay town road with the grafting and activating powder rubber modification by homogenizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100155037A CN100523065C (en) | 2005-10-19 | 2005-10-19 | Method for grafting and activating powder rubber for modifying to pavement asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100155037A CN100523065C (en) | 2005-10-19 | 2005-10-19 | Method for grafting and activating powder rubber for modifying to pavement asphalt |
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| Publication Number | Publication Date |
|---|---|
| CN1951990A CN1951990A (en) | 2007-04-25 |
| CN100523065C true CN100523065C (en) | 2009-08-05 |
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| CNB2005100155037A Expired - Fee Related CN100523065C (en) | 2005-10-19 | 2005-10-19 | Method for grafting and activating powder rubber for modifying to pavement asphalt |
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| CN101235207B (en) * | 2008-01-17 | 2010-11-10 | 徐培华 | Preparation method of asphalt pavement crevice embedding sealing material |
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