CN107805382A - A kind of preparation method of wide temperature range type rubber damping material - Google Patents
A kind of preparation method of wide temperature range type rubber damping material Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0036—Galactans; Derivatives thereof
- C08B37/0039—Agar; Agarose, i.e. D-galactose, 3,6-anhydro-D-galactose, methylated, sulfated, e.g. from the red algae Gelidium and Gracilaria; Agaropectin; Derivatives thereof, e.g. Sepharose, i.e. crosslinked agarose
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- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
- C08J2305/12—Agar-agar; Derivatives thereof
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- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/267—Magnesium carbonate
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Abstract
The present invention relates to a kind of preparation method of wide temperature range type rubber damping material, belong to technical field of rubber material.The present invention is mixed with sanchi leaf by folium cortex eucommiae to be extracted and compound with asparagus,Collect extract jello,Contain substantial amounts of Geniposide in active material inside folium cortex eucommiae by extracting,Prepare modified crosslinking gel rubber material,Blending and modifying is occurred by modified crosslinking gel rubber material and polyurethane rubber,Effectively improve the damping wide area of urethane rubber materials,And the main cross-linking modified thing of the present invention is Geniposide material,Free radical amino reacts inside rubber that can be with,It is crosslinked in the form of unimolecule or polymolecular,Simultaneously because the reactivity point limited amount of strand,Most of rubber molecular chain crosslinks modified first,The species of strand gradually decreases with the increase of modification degree,Therefore modified rubber material internal contains the sulfur-modified rubber molecular chain of wider distribution,So as to be effectively improved the damping capacity of urethane rubber materials.
Description
Technical field
The present invention relates to a kind of preparation method of wide temperature range type rubber damping material, belong to technical field of rubber material.
Background technology
It is also more strict with the requirement to damping material of progress and development society of science and technology, industry-by-industry all there is an urgent need to
More damping materials with excellent properties.Extreme weather frequency was existing in the last few years, and very high temperature and pole cryogenic conditions are all unfavorable for material
The damping capacity of material, this just needs to require to widen the effective of damping material while ensureing that material has certain damping factor value
Damping temperature domain, and there is preferable mechanical property.
In recent years, with the rapid development of national economy and social science and technology, more superior life is brought
While also bring vibration and the problem of noise, vibration and the pollution of noise have become asking for urgent need solution in people's life
One of topic, and the viscous inverse property material of macromolecule can absorb vibration with noise and as excellent due to its distinctive viscoelastic sexual behaviour
Damping material and enjoy people to favor, in polymer damping material, rubber is typical viscoelastic body, more because rubber has
Modulus of elasticity is small, wide in variety, damping property is superior and by the extensive concern for grinding skilful scholar both at home and abroad.It is existing to improve and prepare
Wide temperature range material feedstock is expensive, and small molecule damping is given agent and easily crystallized, and easily moves out, and produces phase separation, uses for a long time
Damping capacity declines the shortcomings of serious, and because its physical and mechanical properties is relatively low, using being restricted, so improvement and preparation one
Kind Novel wide temperature domain rubber damping material is necessary.
The content of the invention
The technical problems to be solved by the invention：It is expensive for the existing wide temperature range material feedstock for improving and preparing,
Small molecule damping is given agent and easily crystallized, and easily moves out, and produces phase separation, declines the shortcomings of serious using damping capacity for a long time,
And because its physical and mechanical properties is relatively low, using being restricted problem, there is provided a kind of system of wide temperature range type rubber damping material
Preparation Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）Count in parts by weight, weigh 10~15 parts of Eucommia ulmoides Oliv. leaves, 5~8 parts of pseudo-ginseng blades and 45~50 portions of asparagus respectively and stir
Mixing and vacuum freeze drying are mixed, dried object is obtained and grinds sieving, obtain abrasive flour；
（2）In mass ratio 1:3, abrasive flour and the sodium carbonate liquor of mass fraction 15% are stirred, are incubated after being heated to boiling
Processing, standing are cooled to room temperature, filtered to get filtrate, rotary evaporation obtains concentrate；
（3）By volume 1:5, concentrate is mixed with absolute ethyl alcohol and stirring, it is still aging, filter and collect filter cake, dry
Dry agar-agar；
（4）Count in parts by weight, weigh 45~50 parts of deionized waters, 10~15 parts of dry agar-agars and 3~5 parts of diethylamino second respectively
Base cellulose is placed in flask, is stirred simultaneously ultrasonic disperse, is obtained dispersion liquid and heating water bath, insulation reaction, filter to get filtrate
And stand and be cooled to room temperature, obtain modified crosslinking gel；
（5）Take polyurethane rubber and plasticate, obtain softened rubber and count in parts by weight, weigh 45~50 parts of softened rubbers, 6 respectively
~8 parts of carbon blacks and 10~15 parts of modified crosslinking gels are placed in banbury, and banburying handles to obtain epoxy glue, and dumping is handled and stood cold
But to room temperature, modified rubber material is obtained；
（6）And count in parts by weight, 45~50 parts of modified rubber material, 2~3 parts of stearic acid, 3~4 parts of magnesium carbonate, 2 are weighed respectively
~3 parts of zinc oxide, 10~15 parts of sulphur powders and 0.5~1.0 part of dibenzothiazyl disulfide are placed in mill, and mill is handled and adjusted
Whole roll spacing, standing are cooled to room temperature, you can are prepared into a kind of wide temperature range type rubber damping material.
Step（2）Described rotating evaporation temperature is 65~70 DEG C.
Step（5）Described mixing temperature is 120~130 DEG C.
Step（5）Described dumping treatment temperature is 120~130 DEG C.
Step（6）Described roll spacing is 2mm.
Compared with other method, advantageous effects are the present invention：
（1）The present invention mixes extraction and, collection extract jello, by carry compound with asparagus by folium cortex eucommiae with sanchi leaf
Take and contain substantial amounts of Geniposide in active material inside folium cortex eucommiae, Geniposide molecule is effectively coated in agar-agar preparation process
And load, modified crosslinking gel rubber material is prepared, blending and modifying is occurred by modified crosslinking gel rubber material and polyurethane rubber, effectively
The damping wide area of urethane rubber materials is improved, is effectively improved the damping capacity of polyurethane rubber；
（2）Main cross-linking modified thing of the invention is Geniposide material, and the molecular formula of Geniposide is C11H14O5, chemical constitution has
Multiple active groups such as hydroxyl, carboxyl, rubber inside free radical amino that can be with reacts, so as to unimolecule or more
Molecular forms are crosslinked, simultaneously because the reactivity point limited amount of strand, most of rubber molecular chain occur first
After cross-linking modified, the species of strand gradually decreases with the increase of modification degree, therefore modified rubber material internal contains
The sulfur-modified rubber molecular chain of wider distribution, and then there is wider damping temperature domain, so as to be effectively improved polyurethane rubber material
The damping capacity of material.
Embodiment
Count in parts by weight, weigh 10~15 parts of Eucommia ulmoides Oliv. leaves, 5~8 parts of pseudo-ginseng blades and 45~50 portions of asparagus respectively
Simultaneously 3~5h of vacuum freeze drying is stirred, dried object and ground 80 mesh sieve is obtained, obtains abrasive flour and in mass ratio 1:3, will
Abrasive flour is stirred with the sodium carbonate liquor of mass fraction 15%, is heated to 1~2h of isothermal holding after boiling, and standing is cooled to
Room temperature, filter to get filtrate, rotated at 65~70 DEG C and be evaporated to the 1/3 of filtrate volume, obtain concentrate and by volume 1:5, will
Concentrate mixes with absolute ethyl alcohol and stirring, after still aging 6~8h, filters and collects filter cake, dry 6 at 65~70 DEG C~
8h, it is prepared into dry agar-agar；Count in parts by weight, weigh respectively 45~50 parts of deionized waters, 10~15 parts of dry agar-agars and 3~
5 parts of diethylaminoethyl celluloses are placed in flask, are stirred simultaneously ultrasonic disperse, are obtained dispersion liquid and be placed in water-bath at 75~85 DEG C
Heat, after 1~2h of insulation reaction, filtering to get filtrate and standing is cooled to room temperature, obtains modified crosslinking gel；Take polyurethane rubber simultaneously
Be placed in mill and plasticate 5~10 times, obtain softened rubber and count in parts by weight, respectively weigh 45~50 parts of softened rubbers, 6~
8 parts of carbon blacks and 10~15 parts of modified crosslinking gels are placed in banbury, at 120~130 DEG C after 10~15min of banburying, are obtained mixed
Rubber alloy is placed in 45~60min of dumping at 120~130 DEG C, and standing is cooled to room temperature, obtains modified rubber material and in parts by weight
Meter, respectively weigh 45~50 parts of modified rubber material, 2~3 parts of stearic acid, 3~4 parts of magnesium carbonate, 2~3 parts of zinc oxide, 10~15 parts
Sulphur powder and 0.5~1.0 part of dibenzothiazyl disulfide are placed in mill, and mill handles and adjusts roll spacing at 130~135 DEG C
For 2mm, standing is cooled to room temperature, you can is prepared into a kind of wide temperature range type rubber damping material.
Example 1
Count in parts by weight, 12 parts of Eucommia ulmoides Oliv. leaves of weighing, 7 parts of pseudo-ginseng blades and 47 portions of asparagus are stirred respectively and vacuum is cold
Dry 4h is freezed, dried object and ground 80 mesh sieve is obtained, obtains abrasive flour and in mass ratio 1:3, by abrasive flour and mass fraction
15% sodium carbonate liquor is stirred, and is heated to isothermal holding 2h after boiling, and standing is cooled to room temperature, filtered to get filtrate, at 67 DEG C
Lower rotation is evaporated to the 1/3 of filtrate volume, obtains concentrate and by volume 1:5, concentrate is mixed with absolute ethyl alcohol and stirring, it is quiet
After putting ageing h, filter and collect filter cake, 7h is dried at 67 DEG C, is prepared into dry agar-agar；Count, weigh respectively in parts by weight
47 parts of deionized waters, 12 parts of dry agar-agars and 4 parts of diethylaminoethyl celluloses are placed in flask, are stirred simultaneously ultrasonic disperse,
Dispersion liquid is placed in heating water bath at 7 DEG C, after insulation reaction 12h, filtering to get filtrate and standing is cooled to room temperature, obtains modified friendship
Join gel；Take polyurethane rubber to be placed in plasticating in mill 8 times, obtain softened rubber and count in parts by weight, weigh 47 respectively
Part softened rubber, 7 parts of carbon blacks and 12 parts of modified crosslinking gels are placed in banbury, at 125 DEG C after banburying 12min, must be mixed
Glue is placed in dumping 47min at 125 DEG C, and standing is cooled to room temperature, obtains modified rubber material and count in parts by weight, weigh 47 respectively
Part modified rubber material, 2 parts of stearic acid, 3 parts of magnesium carbonate, 3 parts of zinc oxide, 12 parts of sulphur powders and 0.7 part of dibenzothiazyl disulfide are put
In mill, it is 2mm that mill, which handles and adjusts roll spacing, at 132 DEG C, and standing is cooled to room temperature, you can is prepared into a kind of wide temperature
Domain type rubber damping material.
Example 2
Count in parts by weight, 10 parts of Eucommia ulmoides Oliv. leaves of weighing, 5 parts of pseudo-ginseng blades and 45 portions of asparagus are stirred respectively and vacuum is cold
Dry 3h is freezed, dried object and ground 80 mesh sieve is obtained, obtains abrasive flour and in mass ratio 1:3, by abrasive flour and mass fraction
15% sodium carbonate liquor is stirred, and is heated to isothermal holding 1h after boiling, and standing is cooled to room temperature, filtered to get filtrate, at 65 DEG C
Lower rotation is evaporated to the 1/3 of filtrate volume, obtains concentrate and by volume 1:5, concentrate is mixed with absolute ethyl alcohol and stirring, it is quiet
After putting ageing 6h, filter and collect filter cake, 6h is dried at 65 DEG C, is prepared into dry agar-agar；Count, weigh respectively in parts by weight
45 parts of deionized waters, 10 parts of dry agar-agars and 3 parts of diethylaminoethyl celluloses are placed in flask, are stirred simultaneously ultrasonic disperse,
Dispersion liquid is placed in heating water bath at 75 DEG C, after insulation reaction 1h, filtering to get filtrate and standing is cooled to room temperature, obtains modified friendship
Join gel；Take polyurethane rubber to be placed in plasticating in mill 5 times, obtain softened rubber and count in parts by weight, weigh 45 respectively
Part softened rubber, 6 parts of carbon blacks and 10 parts of modified crosslinking gels are placed in banbury, at 120 DEG C after banburying 10min, must be mixed
Glue is placed in dumping 45min at 120 DEG C, and standing is cooled to room temperature, obtains modified rubber material and count in parts by weight, weigh 45 respectively
Part modified rubber material, 2 parts of stearic acid, 3 parts of magnesium carbonate, 2 parts of zinc oxide, 10 parts of sulphur powders and 0.5 part of dibenzothiazyl disulfide are put
In mill, it is 2mm that mill, which handles and adjusts roll spacing, at 130 DEG C, and standing is cooled to room temperature, you can is prepared into a kind of wide temperature
Domain type rubber damping material.
Example 3
Count in parts by weight, 15 parts of Eucommia ulmoides Oliv. leaves of weighing, 8 parts of pseudo-ginseng blades and 50 portions of asparagus are stirred respectively and vacuum is cold
Dry 5h is freezed, dried object and ground 80 mesh sieve is obtained, obtains abrasive flour and in mass ratio 1:3, by abrasive flour and mass fraction
15% sodium carbonate liquor is stirred, and is heated to isothermal holding 2h after boiling, and standing is cooled to room temperature, filtered to get filtrate, at 70 DEG C
Lower rotation is evaporated to the 1/3 of filtrate volume, obtains concentrate and by volume 1:5, concentrate is mixed with absolute ethyl alcohol and stirring, it is quiet
After putting ageing h, filter and collect filter cake, 8h is dried at 70 DEG C, is prepared into dry agar-agar；Count, weigh respectively in parts by weight
50 parts of deionized waters, 15 parts of dry agar-agars and 5 parts of diethylaminoethyl celluloses are placed in flask, are stirred simultaneously ultrasonic disperse,
Dispersion liquid is placed in heating water bath at 85 DEG C, after insulation reaction 2h, filtering to get filtrate and standing is cooled to room temperature, obtains modified friendship
Join gel；Take polyurethane rubber to be placed in plasticating in mill 10 times, obtain softened rubber and count in parts by weight, weigh 50 respectively
Part softened rubber, 8 parts of carbon blacks and 15 parts of modified crosslinking gels are placed in banbury, at 130 DEG C after banburying 15min, must be mixed
Glue is placed in dumping 60min at 130 DEG C, and standing is cooled to room temperature, obtains modified rubber material and count in parts by weight, weigh 50 respectively
Part modified rubber material, 3 parts of stearic acid, 4 parts of magnesium carbonate, 3 parts of zinc oxide, 15 parts of sulphur powders and 1.0 parts of dibenzothiazyl disulfides are put
In mill, it is 2mm that mill, which handles and adjusts roll spacing, at 135 DEG C, and standing is cooled to room temperature, you can is prepared into a kind of wide temperature
Domain type rubber damping material.
Performance test is carried out to example 1,2,3 prepared by the present invention, specific test result is as shown in following table table 1：
Table 1：Performance test table
As seen from the above table, the rubber damping material that prepared by the present invention has excellent mechanical property.
Claims (5)
1. a kind of preparation method of wide temperature range type rubber damping material, it is characterised in that specifically preparation process is：
（1）Count in parts by weight, weigh 10~15 parts of Eucommia ulmoides Oliv. leaves, 5~8 parts of pseudo-ginseng blades and 45~50 portions of asparagus respectively and stir
Mixing and vacuum freeze drying are mixed, dried object is obtained and grinds sieving, obtain abrasive flour；
（2）In mass ratio 1:3, abrasive flour and the sodium carbonate liquor of mass fraction 15% are stirred, are incubated after being heated to boiling
Processing, standing are cooled to room temperature, filtered to get filtrate, rotary evaporation obtains concentrate；
（3）By volume 1:5, concentrate is mixed with absolute ethyl alcohol and stirring, it is still aging, filter and collect filter cake, dry
Dry agar-agar；
（4）Count in parts by weight, weigh 45~50 parts of deionized waters, 10~15 parts of dry agar-agars and 3~5 parts of diethylamino second respectively
Base cellulose is placed in flask, is stirred simultaneously ultrasonic disperse, is obtained dispersion liquid and heating water bath, insulation reaction, filter to get filtrate
And stand and be cooled to room temperature, obtain modified crosslinking gel；
（5）Take polyurethane rubber and plasticate, obtain softened rubber and count in parts by weight, weigh 45~50 parts of softened rubbers, 6 respectively
~8 parts of carbon blacks and 10~15 parts of modified crosslinking gels are placed in banbury, and banburying handles to obtain epoxy glue, and dumping is handled and stood cold
But to room temperature, modified rubber material is obtained；
（6）And count in parts by weight, 45~50 parts of modified rubber material, 2~3 parts of stearic acid, 3~4 parts of magnesium carbonate, 2 are weighed respectively
~3 parts of zinc oxide, 10~15 parts of sulphur powders and 0.5~1.0 part of dibenzothiazyl disulfide are placed in mill, and mill is handled and adjusted
Whole roll spacing, standing are cooled to room temperature, you can are prepared into a kind of wide temperature range type rubber damping material.
A kind of 2. preparation method of wide temperature range type rubber damping material according to claim 1, it is characterised in that：Step
（2）Described rotating evaporation temperature is 65~70 DEG C.
A kind of 3. preparation method of wide temperature range type rubber damping material according to claim 1, it is characterised in that：Step
（5）Described mixing temperature is 120~130 DEG C.
A kind of 4. preparation method of wide temperature range type rubber damping material according to claim 1, it is characterised in that：Step
（5）Described dumping treatment temperature is 120~130 DEG C.
A kind of 5. preparation method of wide temperature range type rubber damping material according to claim 1, it is characterised in that：Step
（6）Described roll spacing is 2mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641125A (en) * | 2018-04-19 | 2018-10-12 | 钱兴 | A kind of preparation method of modified porous damping rubber material |
| CN110951031A (en) * | 2019-12-15 | 2020-04-03 | 安徽匠星联创新材料科技有限公司 | High-hydrolysis-resistance polyurethane damping material and preparation method thereof |
| CN113969031A (en) * | 2021-12-01 | 2022-01-25 | 中国核动力研究设计院 | High-performance damping rubber and preparation method thereof |
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| CN108641125A (en) * | 2018-04-19 | 2018-10-12 | 钱兴 | A kind of preparation method of modified porous damping rubber material |
| CN110951031A (en) * | 2019-12-15 | 2020-04-03 | 安徽匠星联创新材料科技有限公司 | High-hydrolysis-resistance polyurethane damping material and preparation method thereof |
| CN110951031B (en) * | 2019-12-15 | 2021-12-17 | 安徽匠星联创新材料科技有限公司 | High-hydrolysis-resistance polyurethane damping material and preparation method thereof |
| CN113969031A (en) * | 2021-12-01 | 2022-01-25 | 中国核动力研究设计院 | High-performance damping rubber and preparation method thereof |
| CN113969031B (en) * | 2021-12-01 | 2022-11-01 | 中国核动力研究设计院 | High-performance damping rubber and preparation method thereof |
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Application publication date: 20180316 |