CN108276631A - Modified rubber powder and preparation method thereof - Google Patents
Modified rubber powder and preparation method thereof Download PDFInfo
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- CN108276631A CN108276631A CN201810072897.7A CN201810072897A CN108276631A CN 108276631 A CN108276631 A CN 108276631A CN 201810072897 A CN201810072897 A CN 201810072897A CN 108276631 A CN108276631 A CN 108276631A
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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
- C08L21/00—Compositions of unspecified rubbers
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
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Abstract
The present invention relates to a kind of modified rubber powder and preparation method thereof, the raw material components of modified rubber powder by weight, including：45~55 parts by weight of talcum powder, 7~9 parts by weight of accelerating agent, 900~950 parts by weight of 6~8 parts by weight of pine tar, 2.5~3.5 parts by weight of eliminating smell agent and rubber powder.Modified rubber powder odorlessness provided by the invention, nontoxicity, thermal stability is good, can improve tearing strength, degree of drawing, rolling resistance and the abrasion resistance of the rubber product being prepared；The preparation method of modified rubber powder is simple and environmentally-friendly, and production cost is low.
Description
Technical field
The present invention relates to technical field of rubber material, and in particular to a kind of modified rubber powder and preparation method thereof.
Background technology
Rubber powder is the abbreviation of rubber powder, is generally process with waste tire, frequently with processing method have room temperature
Comminuting method, freezing and room temperature chemical method etc..The rubber powder processed by damaged tire, main component are rubber, carbon black, softening
Agent and other auxiliary agents etc., it is poor with other materials compatibility since its surface is inert, directly mix that reduce its made
At properties of product.Reclaimed rubber use is presently mainly made, but produce reclaimed rubber to cause secondary pollution, tensile property
Only 60% or so of rubber powder, tearing strength, abrasion resistance are also to be improved.Therefore, it is also desirable to develop novel comprehensive profit
With the effective way of waste rubber powder.
Invention content
For the defects in the prior art, present invention aims at providing a kind of modified rubber powder and preparation method thereof, with
It provides a kind of odorlessness, nontoxicity, thermal stability good modified rubber powder, the tearing for the rubber product being prepared can be improved
Intensity, degree of drawing, rolling resistance and abrasion resistance；The preparation method of modified rubber powder is simple and environmentally-friendly, and production cost is low.
To achieve the above object, technical solution provided by the invention is：
The present invention provides a kind of modified rubber powder, the raw material components of modified rubber powder by weight, including：Talcum powder
45~55 parts by weight, 7~9 parts by weight of accelerating agent, 6~8 parts by weight of pine tar, 2.5~3.5 parts by weight of eliminating smell agent and rubber powder 900
~950 parts by weight.
Preferably, accelerating agent is DM accelerating agents；One kind in 40 mesh rubber powders, 60 mesh rubber powders and 28 mesh rubber powders of rubber powder or
It is a variety of.
Preferably, the raw material components of modified rubber powder by weight, including：50 parts by weight of talcum powder, 8 weight of DM accelerating agents
Measure part, 932 parts by weight of 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent and rubber powder.
The raw material components of modified rubber powder further include：8~10 parts by weight of 1,3- cyclohexane dicarboxylic acids, 5~9 weight of pentaerythrite
Measure part, 3~6 parts by weight of phenol, 2~4 parts by weight of hexamethyldisiloxane, 1~3 weight of tetraphenyl (bisphenol-A) bisphosphate
Part, 5~7 parts by weight of dioctyl phthalate, 0.5~1 parts by weight of alumina silicate, 5~10 parts by weight of acrylic acid and potassium sulfite 1
~2 parts by weight.
Preferably, the raw material components of modified rubber powder by weight, including：50 parts by weight of talcum powder, 8 weight of DM accelerating agents
Measure part, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 932 parts by weight of rubber powder, 9 parts by weight of 1,3- cyclohexane dicarboxylic acids, Ji Wusi
7 parts by weight of alcohol, 4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, 2 parts by weight of tetraphenyl (bisphenol-A) bisphosphate, neighbour
6 parts by weight of dioctyl phthalate, 1.5 parts by weight of 0.8 parts by weight of alumina silicate, 7 parts by weight of acrylic acid and potassium sulfite.
The present invention provides a kind of preparation method of modified rubber powder, including step：After rubber powder is heated, other residues are added
Raw material components (talcum powder, accelerating agent, pine tar and eliminating smell agent) are uniformly mixed, obtain mixture；After mixture is kneaded drying
It crushes, obtains modified rubber powder.
Preferably, in the above method, if rubber powder is 40 mesh rubber powders, the temperature of heating is 125 DEG C, time of heating is 20~
30min；If rubber powder is 60 mesh rubber powders, the temperature of heating is 110 DEG C, and the time of heating is 20~30min；If rubber powder is 28 mesh glue
The temperature of powder, heating is 150 DEG C, and the time of heating is 20~30min.
The present invention also provides the preparation methods of another modified rubber powder, including step：After rubber powder is heated, it is added 1,3-
Cyclohexane dicarboxylic acid, pentaerythrite, phenol, alumina silicate, acrylic acid and potassium sulfite adjust pH value to 4.5~5.0, then adjust
Temperature is saved to 70~80 DEG C, 80~100min is kept the temperature, obtains the first mixture；Other surplus stocks are added in the first mix
Component (talcum powder, DM accelerating agents, pine tar, eliminating smell agent, hexamethyldisiloxane, tetraphenyl (bisphenol-A) bisphosphate and neighbour
Dioctyl phthalate), pH value is adjusted to 6.5~7.0, is then warming up to 120~125 with the heating rate of 1~2 DEG C/min
DEG C, 60~70min is kept the temperature, the second mixture is obtained；Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Preferably, in the above method, if rubber powder is 40 mesh rubber powders, the temperature of heating is 125 DEG C, time of heating is 20~
30min；If rubber powder is 60 mesh rubber powders, the temperature of heating is 110 DEG C, and the time of heating is 20~30min；If rubber powder is 28 mesh glue
The temperature of powder, heating is 150 DEG C, and the time of heating is 20~30min.
The present invention also protect modified rubber powder prepare sport plastic sports ground, recreation ground, rubber floor tile, waterproof roll,
Application in the fields such as water-repellent paint, highway modified pitch, rubber product.
Technical solution provided by the invention has following advantageous effect：(1) modified rubber powder provided by the invention is without gas
Taste, nontoxicity, thermal stability is good, and high temperature does not disappear, and low temperature is not split；(2) it is prepared using modified rubber powder provided by the invention
Rubber product, tearing strength, degree of drawing, rolling resistance and abrasion resistance all significantly improve；(3) modification provided by the invention
The preparation method of rubber powder is simple and environmentally-friendly, and production cost is low.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described.Implement below
Example is only used for clearly illustrating technical scheme of the present invention, therefore be intended only as example, and cannot limit this hair with this
Bright protection domain.
Experimental method in following embodiments is unless otherwise specified conventional method.Examination as used in the following examples
Material is tested, is to be commercially available from regular shops unless otherwise specified.Quantitative test in following embodiment, is respectively provided with three
Secondary to repeat to test, data are the average value or mean+SD of three repeated experiments.
Embodiment one
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：50 parts by weight of talcum powder, DM
8 parts by weight of accelerating agent, 932 parts by weight of 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent and 28 mesh rubber powder.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 28 mesh rubber powder, 150 DEG C of heating 25min, other surplus stock components are added, is uniformly mixed, obtains mixture；
Mixture is kneaded crushed after being dried, obtains modified rubber powder.
Embodiment two
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：45 parts by weight of talcum powder, DM
9 parts by weight of accelerating agent, 900 parts by weight of 6 parts by weight of pine tar, 3.5 parts by weight of eliminating smell agent and 40 mesh rubber powder.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 40 mesh rubber powder, 125 DEG C of heating 20min, other surplus stock components are added, is uniformly mixed, obtains mixture；
Mixture is kneaded crushed after being dried, obtains modified rubber powder.
Embodiment three
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：55 parts by weight of talcum powder, DM
7 parts by weight of accelerating agent, 950 parts by weight of 8 parts by weight of pine tar, 2.5 parts by weight of eliminating smell agent and 60 mesh rubber powder.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 60 mesh rubber powder, 110 DEG C of heating 30min, other surplus stock components are added, is uniformly mixed, obtains mixture；
Mixture is kneaded crushed after being dried, obtains modified rubber powder.
Example IV
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：50 parts by weight of talcum powder, DM
8 parts by weight of accelerating agent, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 28 mesh rubber powder, 932 parts by weight, 1,3- cyclohexane dicarboxylic acids 9
Parts by weight, 7 parts by weight of pentaerythrite, 4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, tetraphenyl (bisphenol-A) diphosphonic acid
2 parts by weight of ester, 6 parts by weight of dioctyl phthalate, 0.8 parts by weight of alumina silicate, 7 parts by weight of acrylic acid and potassium sulfite 1.5
Parts by weight.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 150 DEG C of 28 mesh rubber powder heating 25min, be added 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate,
Acrylic acid and potassium sulfite adjust pH value to 4.8, then adjust the temperature to 75 DEG C, keep the temperature 90min, obtain the first mixture；
Other surplus stock components are added in the first mix, adjust pH value to 6.7, then with the liter of 1.5 DEG C/min
Warm rate is warming up to 123 DEG C, keeps the temperature 65min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Embodiment five
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：45 parts by weight of talcum powder, DM
9 parts by weight of accelerating agent, 6 parts by weight of pine tar, 3.5 parts by weight of eliminating smell agent, 40 mesh rubber powder, 900 parts by weight, 1,3- hexamethylene dicarboxyls
Sour 10 parts by weight, 5 parts by weight of pentaerythrite, 6 parts by weight of phenol, 2 parts by weight of hexamethyldisiloxane, tetraphenyl (bisphenol-A) two
3 parts by weight of phosphate, 5 parts by weight of dioctyl phthalate, 1 parts by weight of alumina silicate, 5 parts by weight of acrylic acid and potassium sulfite 2
Parts by weight.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 125 DEG C of 40 mesh rubber powder heating 20min, be added 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate,
Acrylic acid and potassium sulfite adjust pH value to 4.5, then adjust the temperature to 70 DEG C, keep the temperature 80min, obtain the first mixture；
Other surplus stock components are added in the first mix, adjust pH value to 6.5, then with the heating of 1 DEG C/min
Rate is warming up to 120 DEG C, keeps the temperature 60min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Embodiment six
The present embodiment provides a kind of modified rubber powder, raw material components by weight, including：55 parts by weight of talcum powder, DM
7 parts by weight of accelerating agent, 8 parts by weight of pine tar, 2.5 parts by weight of eliminating smell agent, 60 mesh rubber powder, 950 parts by weight, 1,3- hexamethylene dicarboxyls
Sour 8 parts by weight, 5~9 parts by weight of pentaerythrite, 3~6 parts by weight of phenol, 2~4 parts by weight of hexamethyldisiloxane, tetraphenyl
1~3 parts by weight of (bisphenol-A) bisphosphate, 5~7 parts by weight of dioctyl phthalate, 0.5~1 parts by weight of alumina silicate, propylene
Sour 5~10 parts by weight and 1~2 parts by weight of potassium sulfite.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 60 mesh rubber powder, 110 DEG C of 20~30min of heating, 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, silicon is added
Sour aluminium, acrylic acid and potassium sulfite adjust pH value to 4.5~5.0, then adjust the temperature to 70~80 DEG C, and heat preservation 80~
100min obtains the first mixture；
Be added other surplus stock components in the first mix, adjust pH value to 6.5~7.0, then with 1~2 DEG C/
The heating rate of min is warming up to 120~125 DEG C, keeps the temperature 60~70min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Comparative example one
This comparative example provides a kind of modified rubber powder, raw material components by weight, including：50 parts by weight of talcum powder, DM
8 parts by weight of accelerating agent, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 28 mesh rubber powder, 932 parts by weight, 7 parts by weight of pentaerythrite,
4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, 2 parts by weight of tetraphenyl (bisphenol-A) bisphosphate, phthalic acid two
1.5 parts by weight of 6 parts by weight of monooctyl ester, 7 parts by weight of acrylic acid and potassium sulfite.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 150 DEG C of 28 mesh rubber powder heating 25min, be added 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate,
Acrylic acid and potassium sulfite adjust pH value to 4.8, then adjust the temperature to 75 DEG C, keep the temperature 90min, obtain the first mixture；
Other surplus stock components are added in the first mix, adjust pH value to 6.7, then with the liter of 1.5 DEG C/min
Warm rate is warming up to 123 DEG C, keeps the temperature 65min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Comparative example two
This comparative example provides a kind of modified rubber powder, raw material components by weight, including：50 parts by weight of talcum powder, DM
8 parts by weight of accelerating agent, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 28 mesh rubber powder, 932 parts by weight, 1,3- cyclohexane dicarboxylic acids 9
Parts by weight, 7 parts by weight of pentaerythrite, 4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, tetraphenyl (bisphenol-A) diphosphonic acid
2 parts by weight of ester, 6 parts by weight of dioctyl phthalate, 0.8 parts by weight of alumina silicate, 7 parts by weight of acrylic acid and potassium sulfite 1.5
Parts by weight.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 150 DEG C of 28 mesh rubber powder heating 25min, be added 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate,
Acrylic acid and potassium sulfite adjust the temperature to 75 DEG C, keep the temperature 90min, obtain the first mixture；
Other surplus stock components are added in the first mix, adjust pH value to 6.7, then with the liter of 1.5 DEG C/min
Warm rate is warming up to 123 DEG C, keeps the temperature 65min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
Comparative example three
This comparative example provides a kind of modified rubber powder, raw material components by weight, including：50 parts by weight of talcum powder, DM
8 parts by weight of accelerating agent, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 28 mesh rubber powder, 932 parts by weight, 1,3- cyclohexane dicarboxylic acids 9
Parts by weight, 7 parts by weight of pentaerythrite, 4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, tetraphenyl (bisphenol-A) diphosphonic acid
2 parts by weight of ester, 6 parts by weight of dioctyl phthalate, 0.8 parts by weight of alumina silicate, 7 parts by weight of acrylic acid and potassium sulfite 1.5
Parts by weight.
Modified rubber powder is prepared using the preparation method of modified rubber powder provided by the invention by above-mentioned raw material：
After 150 DEG C of 28 mesh rubber powder heating 25min, be added 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate,
Acrylic acid and potassium sulfite adjust pH value to 4.8, then adjust the temperature to 75 DEG C, keep the temperature 90min, obtain the first mixture；
Other surplus stock components are added in the first mix, are then warming up to 123 with the heating rate of 1.5 DEG C/min
DEG C, 65min is kept the temperature, the second mixture is obtained；
Second mixture is kneaded crushed after being dried, obtains modified rubber powder.
The modified rubber powder that the embodiment of the present invention one to embodiment six, comparative example one are prepared to comparative example three leads to
Performance test is crossed to evaluate its effect.
1, the modified rubber powder that the embodiment of the present invention one to embodiment six, comparative example one to comparative example three are prepared point
The rubber product not prepared, then carries out the reliability test of intensity and stretch capability, and concrete outcome is as shown in table 1 below.
1 intensity of table and stretch capability
| Group | Tearing strength (kN/m) | Degree of drawing (MPa) |
| Embodiment one | 66.92 | 34.5 |
| Embodiment two | 66.57 | 34.2 |
| Embodiment three | 66.81 | 33.9 |
| Example IV | 92.13 | 52.0 |
| Embodiment five | 91.68 | 50.9 |
| Embodiment six | 91.54 | 51.6 |
| Comparative example one | 89.53 | 49.8 |
| Comparative example two | 59.72 | 46.8 |
| Comparative example three | 79.61 | 32.5 |
2, rolling resistance and the relevant performance of abrasion performance
Dynamic property rolling resistance is measured according to iso standard 4664 (such as any person skilled in the art it is known that 60
Tan δ values and rolling resistance performance are closely related：60 tan δ values are lower, and rolling resistance is better)；Abrasion performance is marked according to ISO
Standard 4649 measures.It is that table 2 shows the above test as a result, result of its value based on embodiment one and indexation.
2 rolling resistance of table and the relevant performance of abrasion performance
Can be the rubber powder of waste tire recycling it should be noted that it should be noted that the rubber powder that the present invention uses,
It can also be the rubber powder bought on the market.Unless otherwise indicated, technical term or scientific terminology used in this application are should be
The ordinary meaning that those skilled in the art of the invention are understood.Unless specifically stated otherwise, it otherwise explains in these embodiments
Opposite step, numerical expression and the numerical value of the component and step stated are not limit the scope of the invention.It is shown here and retouch
In all examples stated, unless otherwise prescribed, any occurrence should be construed as merely illustrative, not as limit
System, therefore, other examples of exemplary embodiment can have different values.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in protection scope of the present invention.
Claims (9)
1. a kind of modified rubber powder, which is characterized in that the raw material components of the modified rubber powder by weight, including：
45~55 parts by weight of talcum powder, 7~9 parts by weight of accelerating agent, 6~8 parts by weight of pine tar, 2.5~3.5 parts by weight of eliminating smell agent
With 900~950 parts by weight of rubber powder.
2. modified rubber powder according to claim 1, it is characterised in that：
The accelerating agent is DM accelerating agents；
The rubber powder is one or more in 40 mesh rubber powders, 60 mesh rubber powders and 28 mesh rubber powders.
3. modified rubber powder according to claim 2, which is characterized in that the raw material components of the modified rubber powder are by weight
Part meter, including：
50 parts by weight of talcum powder, 8 parts by weight of DM accelerating agents, 932 weight of 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent and rubber powder
Part.
4. modified rubber powder according to claim 1, which is characterized in that the raw material components of the modified rubber powder also wrap
It includes：
8~10 parts by weight of 1,3- cyclohexane dicarboxylic acids, 5~9 parts by weight of pentaerythrite, 3~6 parts by weight of phenol, two silicon of hexamethyl
2~4 parts by weight of oxygen alkane, 1~3 parts by weight of tetraphenyl (bisphenol-A) bisphosphate, 5~7 parts by weight of dioctyl phthalate, silicon
1~2 parts by weight of 0.5~1 parts by weight of sour aluminium, 5~10 parts by weight of acrylic acid and potassium sulfite.
5. modified rubber powder according to claim 4, which is characterized in that the raw material components of the modified rubber powder are by weight
Part meter, including：
50 parts by weight of talcum powder, 8 parts by weight of DM accelerating agents, 7 parts by weight of pine tar, 3 parts by weight of eliminating smell agent, 932 parts by weight of rubber powder,
9 parts by weight of 1,3- cyclohexane dicarboxylic acids, 7 parts by weight of pentaerythrite, 4 parts by weight of phenol, 3 parts by weight of hexamethyldisiloxane, four
2 parts by weight of phenyl (bisphenol-A) bisphosphate, 6 parts by weight of dioctyl phthalate, 0.8 parts by weight of alumina silicate, 7 weight of acrylic acid
Measure part and 1.5 parts by weight of potassium sulfite.
6. the preparation method of claim 1-3 any one of them modified rubber powders, which is characterized in that including step：
After rubber powder is heated, other surplus stock components are added, is uniformly mixed, obtains mixture；
The mixture is kneaded crushed after being dried, obtains the modified rubber powder.
7. the preparation method of modified rubber powder according to claim 6, it is characterised in that：
If rubber powder is 40 mesh rubber powders, the temperature of heating is 125 DEG C, and the time of heating is 20~30min；
If rubber powder is 60 mesh rubber powders, the temperature of heating is 110 DEG C, and the time of heating is 20~30min；
If rubber powder is 28 mesh rubber powders, the temperature of heating is 150 DEG C, and the time of heating is 20~30min.
8. the preparation method of the modified rubber powder described in claim 4 or 5, which is characterized in that including step：
After rubber powder is heated, 1,3- cyclohexane dicarboxylic acids, pentaerythrite, phenol, alumina silicate, acrylic acid and potassium sulfite is added,
PH value is adjusted to 4.5~5.0, then adjusts the temperature to 70~80 DEG C, 80~100min is kept the temperature, obtains the first mixture；
Be added other surplus stock components in first mixture, adjust pH value to 6.5~7.0, then with 1~2 DEG C/
The heating rate of min is warming up to 120~125 DEG C, keeps the temperature 60~70min, obtains the second mixture；
Second mixture is kneaded crushed after being dried, obtains the modified rubber powder.
9. the preparation method of modified rubber powder according to claim 8, it is characterised in that：
If rubber powder is 40 mesh rubber powders, the temperature of heating is 125 DEG C, and the time of heating is 20~30min；
If rubber powder is 60 mesh rubber powders, the temperature of heating is 110 DEG C, and the time of heating is 20~30min；
If rubber powder is 28 mesh rubber powders, the temperature of heating is 150 DEG C, and the time of heating is 20~30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072897.7A CN108276631A (en) | 2018-01-25 | 2018-01-25 | Modified rubber powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072897.7A CN108276631A (en) | 2018-01-25 | 2018-01-25 | Modified rubber powder and preparation method thereof |
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| CN108276631A true CN108276631A (en) | 2018-07-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263109A (en) * | 1998-12-18 | 2000-08-16 | Pku粉末橡胶联合有限公司 | Rubber powder and its preparation method |
| CN103756075A (en) * | 2013-12-19 | 2014-04-30 | 河北瑞威科技有限公司 | Method for preparation of thermoplastic elastomer from waste rubber and waste plastics |
| CN105602036A (en) * | 2014-11-19 | 2016-05-25 | 孙宝林 | Acrylonitrile-butadiene rubber powder and preparation method thereof |
-
2018
- 2018-01-25 CN CN201810072897.7A patent/CN108276631A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263109A (en) * | 1998-12-18 | 2000-08-16 | Pku粉末橡胶联合有限公司 | Rubber powder and its preparation method |
| CN103756075A (en) * | 2013-12-19 | 2014-04-30 | 河北瑞威科技有限公司 | Method for preparation of thermoplastic elastomer from waste rubber and waste plastics |
| CN105602036A (en) * | 2014-11-19 | 2016-05-25 | 孙宝林 | Acrylonitrile-butadiene rubber powder and preparation method thereof |
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Application publication date: 20180713 |