CN107474335A - It is a kind of suitable for tyre repairing fluid of limit hot environment and preparation method thereof - Google Patents
It is a kind of suitable for tyre repairing fluid of limit hot environment and preparation method thereof Download PDFInfo
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- CN107474335A CN107474335A CN201710373769.1A CN201710373769A CN107474335A CN 107474335 A CN107474335 A CN 107474335A CN 201710373769 A CN201710373769 A CN 201710373769A CN 107474335 A CN107474335 A CN 107474335A
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- repairing fluid
- tyre repairing
- hot environment
- calcium carbonate
- dispersant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses a kind of tyre repairing fluid suitable for limit hot environment, primary raw material is natural emulsion emulsion, ethylene glycol, antioxidant, surfactant, coalescents and dispersant.Wherein compared to conventional formulation, significantly reduce the content of natural emulsion emulsion, increase the content of dispersant, so as to reduce the risk easily bonded when nature rubber latex passes through valve inside on spring, nano silicon is added as coalescents simultaneously, tire patching air-tightness can be significantly improved, shortens the tire patching time；Nano silicon is carried out to reduce further the risk easily bonded on spring when nature rubber latex in tyre repairing fluid passes through valve inside after cladding processing；Therefore the tyre repairing fluid of the present invention is that one kind can be suitably used for limit hot environment, while the new tyre repairing fluid of low temperature environment is taken into account, its high temperature tire patching superior performance.
Description
Technical field
The present invention relates to a kind of macromolecule synthesising technology field, more particularly to a kind of benefit suitable for limit hot environment
Tire liquid and preparation method thereof.
Background technology
The tire overwhelming majority used at this stage is the vacuum tyre of inflation, after being punctured by the nail on road surface or hard thing,
Can cause it is acute lose heart, the lighter is cast anchor, and severe one is likely to result in overturning, and causes the major accident of car crash.Traditional tire patching
Agent will be through unloading wheel, taking off the series of processes such as tire, tire patching, and formality is numerous and diverse, laborious time-consuming, especially in the wild with high speed traveling when,
Do not possess tire patching condition, tire can not just continue to travel at all after being pierced.
In order to solve the above problems, someone has invented tire repair cement, and majority uses polyvinyl acetate emulsion or polyvinyl alcohol
Solution, is equipped with starch, cellulose and inorganic filler etc., and sealing composition is more single, mobility, stability, inoxidizability and gluing
Property can not meet to require.Such as Chinese patent 90109738.1, natural and synthetic adhesive is used to the addition of various reinforcement for base-material
Agent, age resistor etc., tire patching hydraulic tightness and ageing-resistant performance are improved well, but use fibre bundle and inorganic filler to mend
Strong material, can gradually it be solidified in tire inner wall, worn tire.Some tyre repairing fluids may contain acidic materials, such as Application No.
91104114.1 patent, the mending agent made of raw stock, banana oil, gasoline, bluestone powder, white lime and sulfuric acid, although mending
Tire effect is fine, but due to containing sulfuric acid, has very strong corrosiveness to the inner tube of a tyre or valve cock etc., and be not suitable under low temperature
Use.Using organic filler, the friction damage to tire can be reduced, as Chinese patent 96108493.6 is used to tire harmless
Natural rubber particle reinforcement, permanent healing can be reached with tire.But need to soak in toluene during natural rubber use, make
It expands softening, and tire can become fragile after the toluene of micelle release is absorbed, easily cracking, moreover toluene is dangerous material, it is easy to
Blast.
In order to solve the problems, such as inflation simultaneously, someone has invented tyre repair aerosol, and it can very easily make to break
Deflated tire rapidly mends, while reaches inflation performance, it is not necessary to the processes such as tire is taken off, directly by propellant by tyre repairing fluid edge
Valve cock and fill several circles of tire agent rotation.
CN106010366A discloses a kind of high-low temperature resistant tyre repairing fluid and preparation method thereof, but the tyre repairing fluid consider should
With scope in subzero 40 DEG C of low temperature between 70 DEG C of high temperature, and in desert area, daytime surface temperature up to 70 DEG C~80 DEG C, vapour
The condition of car traveling alreadys exceed the application of traditional tyre repairing fluid, therefore is necessary to study a kind of suitable for limit hot environment
Tyre repairing fluid.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of tire patching suitable for limit hot environment
Liquid, the product can under more than 70 DEG C hot conditions normal work, reach the effect of instant tire patching.
A kind of tyre repairing fluid suitable for limit hot environment, include the main component of following percentage by weight：
Nature rubber latex 8-15%
Ethylene glycol 10-25%
Antioxidant 8-12%
Surfactant 3-8%
Coalescents 0.1-0.5%
Dispersant surplus.
The solid content of described nature rubber latex is 54-56%.
Described surfactant is neopelex.
Described antioxidant is hindered phenol anti-oxidants.
Preferably, described dispersant is Weifang great Dong chemical industry dispersant 5040.
Preferably, described coalescents are that silica surface wraps up calcium carbonate composite material.
Preferably, in described silica surface parcel calcium carbonate composite material, (ball-type is equivalent straight for silica diameter
Footpath)：CaCO3 particle diameters are (12-50)：1.
A kind of preparation method of tyre repairing fluid suitable for limit hot environment, comprises the following steps：
A, nature rubber latex is poured into agitator, under 120-150rpm mixing speed, stirs 20-30min；
B, mixing speed is adjusted to 200-250rpm, is added surfactant and antioxidant, is continued to stir 15-20min；
C, dispersant is added, continues to stir 60-90min；
D, mixing speed is adjusted to 350-400rpm, is added ethylene glycol, is continued to stir 45-60min；
E, mixing speed is adjusted, is passed through nitrogen, coalescents is slowly added to and continues to stir 15-30min, sealing is filling i.e.
Can.
Preferably, the preparation method of described silica surface parcel calcium carbonate composite material, comprises the following steps：
A, size controlling is existed to being refined as the silica dioxide granule of bag core thing using wet ultra-fine grinding method
80-200nm, obtain slurries 1；
B, to disperseing as the nano-calcium carbonate particles of coating thing, slurries 2 are obtained；
C, after mixing slurries 1 and slurries 2 in proportion, and homogenizing is stirred, obtains mixed slurry；
D, mixed slurry is classified using ultra-fine hydraulic classifier, realizes the silica dioxide granule not wrapped up and nanometer
Calcium carbonate granule is separated；
E, by grader underflow product, by press filtration, it is dried to obtain silica surface parcel calcium carbonate composite material.
Tyre repairing fluid of the present invention suitable for limit hot environment, suitable for the vacuum tyre of gas leakage, general tyre surface quilt
The reparation limit (this is very big nail or screw, generally, is seldom encountered) that aperture 6mm is the tyre repairing fluid is pricked,
In use, tyre repairing fluid tank body one end is connected with compressor tracheae, the other end is connected with the valve of tire, starts compressor
Afterwards, the tyre repairing fluid in tank body is first headed into tire (pneumatic flow of compressor is 35L/ minutes by gas；The limit more than 70 DEG C
Can be completed in the 25-28s times under high temperature), then proceed to add to gas in tire, until tire pressure reaches defined
Pressure, then the valve of tyre repairing fluid tank body and tire is disconnected, starts automobile, automobile is run with 40-80km/h speed,
The tire of gas leakage can be mended within 15km.
Under hot conditions more than 70 DEG C, nature rubber latex extremely easily bonds；CN106010366A is disclosed
High-low temperature resistant tyre repairing fluid can not meet with compressor directly by tyre repairing fluid input tire requirement, main reason is that, tire
Valve in have valve inside, and have spring in the internal structure of valve inside, when nature rubber latex under the pressure of the gas, pass through
During valve inside, easily can be bonded on spring, so that valve inside be blocked, normally tyre repairing fluid can not be fully entered in tire or
Person influences the follow-up process to tire supercharging.
If substantial amounts of stabilizer (dispersant) is added in tyre repairing fluid, it is ensured that what tyre repairing fluid can be safe passes through gas
Men Xin, but this tire patching influential effect to tyre repairing fluid is very big, especially at low temperature, the film-formation result sheet of nature rubber latex
It is next just poor, substantial amounts of stabilizer is added, its film-formation result is influenceed bigger.
The desert earth, the temperature difference round the clock is especially big, and the surface temperature on daytime reaches more than 70 DEG C, and the temperature at night may
Reach subzero less than 20 DEG C, antifreezing agent is the raw material that must be added to；Therefore in order to ensure tire patching effect, the invention provides one kind side
Case：On the one hand the content of natural emulsion is significantly reduced, ratio is reduced to less than 15%, while increases the content of dispersant, so
When can ensure that tyre repairing fluid passes through valve inside, latex is not easy to be bonded on spring, in order to solve increase dispersant content into
The problem of film ability, coalescents being added in of the invention, the main component of coalescents is nano level silica, but
It is to be directly added into after nano level silica under 70 DEG C of high temperature, also results in latex when passing through valve inside and be bonded in spring
On；Therefore need silica carrying out cladding processing, coated in the present invention using calcium carbonate, not only cost is low, and is being filled with
When tire runs automobile with 40-80km/h speed, clad structure can be destroyed soon under high speed peptizaiton, reach association
The effect of furtherance film.
Because under limit high temperature, tyre repairing fluid is easy to be oxidized during 3-5 storage, causes latex to condense,
Tyre repairing fluid fails, therefore the present invention also takes and nitrogen is passed through in the final step for prepare tyre repairing fluid simultaneously, discharges air, prevents
Oxygen gas component in air aoxidizes to colloidal sol.
Found by substantial amounts of experiment, dispersant Weifang great Dong chemical industry dispersant 5040 that the present invention selects not only cost compared with
The low 30-50% of the foreign brand name sample such as Tao Shi, BASF, and anti-condensation effect is also better than them, therefore the present invention is preferably the Weihe River
The big eastern chemical industry dispersant 5040 in mill.
In summary：The tyre repairing fluid suitable for limit hot environment of the present invention, primary raw material are natural emulsion emulsion, second
Glycol, antioxidant, surfactant, coalescents and dispersant.Wherein compared to conventional formulation, genuine milk is significantly reduced
The content of latex solution, the content of dispersant is increased, so as to reduce when nature rubber latex passes through valve inside easily in spring
The risk of upper bonding, while nano silicon is added as coalescents, tire patching air-tightness can be significantly improved, shortens tire patching
Time；By nano silicon reduce further after cladding processing nature rubber latex passes through valve inside in tyre repairing fluid when
The risk easily bonded on spring；Therefore the tyre repairing fluid of the present invention is that one kind can be suitably used for limit hot environment, while take into account low
The new tyre repairing fluid of warm environment, its high temperature tire patching superior performance.
Embodiment
Embodiment 1：
A kind of tyre repairing fluid suitable for limit hot environment, include the main component of following percentage by weight：
Nature rubber latex 12%
Ethylene glycol 22%
Antioxidant 10%
Surfactant 5%
Coalescents 0.3%
Dispersant surplus.
The solid content of described nature rubber latex is 54-56%.
Described surfactant is neopelex.
Described antioxidant is hindered phenol anti-oxidants.
Described dispersant is Weifang great Dong chemical industry dispersant 5040.
Described coalescents are that silica surface wraps up calcium carbonate composite material.
In described silica surface parcel calcium carbonate composite material, silica diameter (ball-type equivalent diameter)：
CaCO3 particle diameters are about (12-50)：1.
Embodiment 2：
A kind of tyre repairing fluid suitable for limit hot environment, include the main component of following percentage by weight：
Nature rubber latex 8%
Ethylene glycol 25%
Antioxidant 8%
Surfactant 8%
Coalescents 0.1%
Dispersant surplus.
The solid content of described nature rubber latex is 54-56%.
Described surfactant is neopelex.
Described antioxidant is hindered phenol anti-oxidants.
Described dispersant is Weifang great Dong chemical industry dispersant 5040.
Described coalescents are that silica surface wraps up calcium carbonate composite material.
In described silica surface parcel calcium carbonate composite material, silica diameter (ball-type equivalent diameter)：
CaCO3 particle diameters are about (12-50)：1.
Embodiment 3：
A kind of tyre repairing fluid suitable for limit hot environment, include the main component of following percentage by weight：
Nature rubber latex 15%
Ethylene glycol 10%
Antioxidant 12%
Surfactant 3%
Coalescents 0.5%
Dispersant surplus.
The solid content of described nature rubber latex is 54-56%.
Described surfactant is neopelex.
Described antioxidant is hindered phenol anti-oxidants.
Described dispersant is Weifang great Dong chemical industry dispersant 5040.
Described coalescents are that silica surface wraps up calcium carbonate composite material.
In described silica surface parcel calcium carbonate composite material, silica diameter (ball-type equivalent diameter)：
CaCO3 particle diameters are about (12-50)：1.
The preparation method of the embodiment 1-3 tyre repairing fluid suitable for limit hot environment, comprises the following steps：
A, nature rubber latex is poured into agitator, under 120-150rpm mixing speed, stirs 20-30min；
B, mixing speed is adjusted to 200-250rpm, is added surfactant and antioxidant, is continued to stir 15-20min；
C, dispersant is added, continues to stir 60-90min；
D, mixing speed is adjusted to 350-400rpm, is added ethylene glycol, is continued to stir 45-60min；
E, mixing speed is adjusted, is passed through nitrogen, coalescents is slowly added to and continues to stir 15-30min, sealing is filling i.e.
Can.
The preparation method of described silica surface parcel calcium carbonate composite material, comprises the following steps：
A, size controlling is existed to being refined as the silica dioxide granule of bag core thing using wet ultra-fine grinding method
80-200nm, obtain slurries 1；
B, to disperseing as the nano-calcium carbonate particles of coating thing, slurries 2 are obtained；
C, after mixing slurries 1 and slurries 2 in proportion, and homogenizing is stirred, obtains mixed slurry；
D, mixed slurry is classified using ultra-fine hydraulic classifier, realizes the silica dioxide granule not wrapped up and nanometer
Calcium carbonate granule is separated；
E, by grader underflow product, by press filtration, it is dried to obtain silica surface parcel calcium carbonate composite material.
Embodiment 1-3 sample is applied to practical operation, the tire of the passenger car of 7 is pricked with diameter 6mm nail
One hole, nail is extracted, until tire pressure is 0, tyre repairing fluid tank body one end is connected with compressor tracheae, the other end and tire
Valve be connected, after starting compressor (pneumatic flow of compressor is 35L/ minutes), gas is first by the tyre repairing fluid in tank body
Head into tire, then proceed to add to gas in tire, until tire pressure reaches 40psi, then by tyre repairing fluid tank body with
The valve of tire disconnects, and starts automobile, runs automobile with 40-60km/h speed, is detected after 3min with suds
Hole whether gas leakage, every 2min detection once, until air tight.
Described low temperature freezes more than 12h for the tank body and tire of tyre repairing fluid under the conditions of subzero 40 DEG C, after taking-up, zero
Tested under lower less than 20 DEG C of outdoor conditions；High temperature for tyre repairing fluid tank body and tire heated under the conditions of 80 DEG C 12h with
On, after taking-up, tested under 70-80 DEG C of Desert conditions；Degradation is that tyre repairing fluid tank body is placed under the conditions of 70 DEG C
Baking oven in aging take out after 3 months, tested after preserving 24h at normal temperatures.
Specific detection data are as follows：
Table 1：
By test data it is recognised that the present invention tyre repairing fluid under normal temperature, subzero 40 DEG C and 70 DEG C of maximum conditions still
Extraordinary tire patching effect can be reached.
In experiment, the tire (including Special anti-skid tire) of 7 kinds of different brands such as Han Tai, Deng Lupu, Michelin, tire patching are used
Effect difference is little.
It is comparative example below, each raw material in the present invention is further analyzed.
Comparative example 1
Coalescents in the embodiment of the present invention 1 are removed, remaining preparation condition is constant.
Comparative example 2
Coalescents silica surface parcel calcium carbonate composite material in the embodiment of the present invention 1 is replaced with into nanoscale
Silica, remaining preparation condition are constant.
Comparative example 3
Nitrogen will not be passed through in the preparation process of the embodiment of the present invention 1, remaining preparation condition is constant.
Comparative example 4
Nitrogen in the preparation process of the embodiment of the present invention 1 is replaced with into ammonia, remaining preparation condition is constant.
Comparative example 1-4 sample is tested, and (all data are contrasted with the test data of embodiment 1
It is to test the average data of 5 times), test result is as follows：
Table 2：
By above comparative example it is recognised that 1, without using coalescents in the case of, effect and the tire patching institute of tire patching
The time needed can all be a greater impact；2nd, nanometer grade silica is directly used to be very easy to as coalescents, tyre repairing fluid
Block valve inside；3rd, it is well more many than the effect for adding ammonia to add nitrogen.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of tyre repairing fluid suitable for limit hot environment, it is characterised in that include the main component of following percentage by weight：
Nature rubber latex 8-15%
Ethylene glycol 10-25%
Antioxidant 8-12%
Surfactant 3-8%
Coalescents 0.1-0.5%
Dispersant surplus.
2. it is applied to the tyre repairing fluid of limit hot environment as claimed in claim 1, it is characterised in that described dispersant is the Weihe River
The big eastern chemical industry dispersant 5040 in mill.
3. it is applied to the tyre repairing fluid of limit hot environment as claimed in claim 1, it is characterised in that described coalescents are
Silica surface wraps up calcium carbonate composite material.
4. it is applied to the tyre repairing fluid of limit hot environment as claimed in claim 3, it is characterised in that described silicon dioxide meter
Bread is wrapped up in calcium carbonate composite material, silica diameter：CaCO3 particle diameters are (12-50)：1.
5. the preparation method of a kind of tyre repairing fluid suitable for limit hot environment, it is characterised in that comprise the following steps：
A, nature rubber latex is poured into agitator, under 120-150rpm mixing speed, stirs 20-30min；
B, mixing speed is adjusted to 200-250rpm, is added surfactant and antioxidant, is continued to stir 15-20min；
C, dispersant is added, continues to stir 60-90min；
D, mixing speed is adjusted to 350-400rpm, is added ethylene glycol, is continued to stir 45-60min；
E, mixing speed is adjusted, is passed through nitrogen, coalescents is slowly added to and continues to stir 15-30min, sealing is filling；
Described coalescents are that silica surface wraps up calcium carbonate composite material.
6. it is applied to the preparation method of the tyre repairing fluid of limit hot environment as claimed in claim 5, it is characterised in that described
Silica surface wraps up the preparation method of calcium carbonate composite material, comprises the following steps：
A, using wet ultra-fine grinding method to being refined as the silica dioxide granule of bag core thing, by size controlling in 80-
200nm, obtain slurries 1；
B, to disperseing as the nano-calcium carbonate particles of coating thing, slurries 2 are obtained；
C, after mixing slurries 1 and slurries 2 in proportion, and homogenizing is stirred, obtains mixed slurry；
D, mixed slurry is classified using ultra-fine hydraulic classifier, realizes the silica dioxide granule and nano-calcium carbonate not wrapped up
Calcium particle is separated；
E, by grader underflow product, by press filtration, it is dried to obtain silica surface parcel calcium carbonate composite material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373769.1A CN107474335A (en) | 2017-05-24 | 2017-05-24 | It is a kind of suitable for tyre repairing fluid of limit hot environment and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373769.1A CN107474335A (en) | 2017-05-24 | 2017-05-24 | It is a kind of suitable for tyre repairing fluid of limit hot environment and preparation method thereof |
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| CN107474335A true CN107474335A (en) | 2017-12-15 |
Family
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| CN201710373769.1A Pending CN107474335A (en) | 2017-05-24 | 2017-05-24 | It is a kind of suitable for tyre repairing fluid of limit hot environment and preparation method thereof |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955228A (en) * | 2017-12-16 | 2018-04-24 | 长沙无道工业设计有限公司 | A kind of mending agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955228A (en) * | 2017-12-16 | 2018-04-24 | 长沙无道工业设计有限公司 | A kind of mending agent and preparation method thereof |
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Application publication date: 20171215 |
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