CN107880341A - A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece - Google Patents
A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece Download PDFInfo
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- CN107880341A CN107880341A CN201711427485.2A CN201711427485A CN107880341A CN 107880341 A CN107880341 A CN 107880341A CN 201711427485 A CN201711427485 A CN 201711427485A CN 107880341 A CN107880341 A CN 107880341A
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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
- C08L15/00—Compositions of rubber derivatives
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Abstract
The invention discloses a kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece, after first graphene is aoxidized with sodium bromide, after the compound rear progress epoxidation of starch, add acrylamide, after methyl acrylate carries out graft copolymerization, after being reacted with the NBR latex of hydrazine hydrate method hydrogenation modification, sulfidization molding is extruded after carrying out banburying with sound insulation packing material etc. after demulsification, the preparation method of the present invention is simple and easy, easily realize, raw material is easy to get, simultaneously, the high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece of preparation, with good sound absorption sound insulation value and mechanical property, and excellent in mechanical performance, materials application field is extensive, with good economic benefit.
Description
Technical field
The invention belongs to field of functional materials, and in particular to a kind of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanization type rubber
The preparation method of film.
Background technology
For nitrile rubber due to the presence of carbon-carbon double bond, it has poor cold resistance and the ozone aging resistance of the diaphragm, chemical proofing, hydrogenation
Nitrile rubber has the performance more excellent than nitrile rubber for nitrile rubber.Hydrogenation modification is the weight of modified rubber
One of direction is wanted, hydrogenation modification improves the oxytolerant of polymer, heat-resisting, ageing-resistant performance, extends the life-span of polymer, expands
The application field of tartan.Unsaturated rubber typically all can be hydrogenated modification.Rubber hydrogenation is mainly hydrogen and rubber
Unsaturated double-bond on xanthan molecule chain plays addition reaction, and C=C double bonds in macromolecular are the interior double of symmetrical diene alkyl substitution mostly
Key, to addition reaction and torpescence, it is often necessary to carry out catalytic hydrogenation from special catalyst, significant hydrogenation could be obtained
Speed.
Su Lin exists《The preparation of hydrogenated nitrile-butadiene rubber and modification application》Hydrogenation modification is carried out to NBR latex with hydrazine hydrate method
Afterwards, powder hydrogenated nitrile-butadiene rubber is prepared using coacervation, the powder hydrogenated nitrile-butadiene rubber prepared is wear-resisting, low temperature resistant（-40
℃）, it is heat-resisting（150℃）, resistance to oxidation, resistance to ozone, all have many raisings than nitrile rubber in terms of weatherability and chemical-resistant reagent,
But there is defect on noise reduction and damping capacity.
The content of the invention
The defects of the object of the invention is exactly to make up prior art, the material of preparation has noise reduction notable with damping capacity
Improve, there is provided a kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece.
The present invention is achieved by the following technical solutions：
A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece, comprises the following steps：
（1）10-15 parts by weight of graphite alkene is added into 1-2 parts by weight sodium bromide and 80-100 parts by weight water mixes, regulation pH is 10-
12, add in container and add 20-30 weight starch after 60-90 DEG C of reaction 2-4 hour, stirred in 60-90 DEG C of water bath with thermostatic control
Mix 20-35 minutes add 5-10 parts by weight epoxy propane be heated to 60-70 DEG C reaction 2-8 hours after, it is stand-by；
（2）By step（1）Gained mixed solution adds 3-4 parts by weight propylene acid amides, 3-5 parts by weight of acrylic acid methyl esters and 0.3-
0.5 parts by weight ammonium persulfate reacts 4-6h in 70-80 DEG C, is 6-8 by mixed solution regulation pH after cooling, stand-by；
（3）By 40-50 parts by weight NBR latex after 2-3 parts by weight hydrazine hydrates are added dropwise to while stirring, 10-20 parts by weight are added
Water, after stirring 30-40 minutes are until be well mixed, then 2-10 part by weight of boric acid and hydrogen peroxide mixture are added dropwise to, regulation temperature
Degree is to 45-55 DEG C, after being added dropwise, after temperature is increased to 85-95 DEG C of reaction 2-3 hour, adds step（2）Gains mixing temperature
Degree is kept for 50-80 DEG C of reaction 1-3 hour, stand-by；
（4）To step（3）75-85 DEG C is warming up in gains, 0.3-0.5 parts by weight calcium chloride is added and is demulsified, after drying
With being added to banbury banburying together with 20-30 parts by weight sound insulation packing materials, temperature control is at 100-120 DEG C, banburying 15-20
Minute, filter glue after cooling, and on opening rubber mixing machine, under conditions of 80-90 DEG C of temperature, it is stearic to add 0.1-0.3 parts by weight
Acid, 2-3 parts by weight silane coupler, 0.1-0.3 parts by weight Hinered phenols antioxidants, 0.2-0.4 parts by weight captaxs, and 2-5
Parts by weight sulphur is kneaded uniformly, is extruded in extruder after parking 12-24 hours, by continuous 160-180 DEG C of curing cage, is prepared into
Vulcanizable rubber piece, both the high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece.
The regulation pH is adjusted using sodium hydroxide and hydrochloric acid.
Described boric acid is boric acid and hydrogen peroxide 1 with hydrogen peroxide mixture：（0.8-1）Mixing.
Described sound insulation packing material is one in glass microballoon, barium sulfate, talcum powder, graphite powder, Cab-O-sil, flake asbestos
Kind is several.
It is an advantage of the invention that：
After the present invention is first aoxidized graphene with sodium bromide, after the compound rear progress epoxidation of starch, addition acrylamide,
After methyl acrylate carries out graft copolymerization, after being reacted with the NBR latex of hydrazine hydrate method hydrogenation modification, by broken
Sulfidization molding is extruded after carrying out banburying with sound insulation packing material etc. after breast, oxidation modification graphene directly produces crosslinking with starch,
After being mixed with NBR latex, IPN disperses between the macromolecular after latex particle and crosslinking, forms fine dispersed structure, will be by
Resistance phenolic compounds is added in matrix as antioxidant, can improve the damping capacity of material, preparation method of the invention is simple
It is easy, easily to realize, raw material is easy to get, meanwhile, the high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece of preparation, have
Good sound absorption sound insulation value and mechanical property, and excellent in mechanical performance, materials application field is extensive, has good economic effect
Benefit.
Embodiment
A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece, comprises the following steps：
（1）12 parts by weight of graphite alkene are added into 1.5 parts by weight sodium bromides and 90 parts by weight water mix, regulation pH is 10-12, is added
In container 70 DEG C reaction 3 hours after add 25 weight starch, stir in 75 DEG C of water bath with thermostatic control 30 minutes addition 8 parts by weight
Expoxy propane be heated to 65 DEG C reaction 5 hours after, it is stand-by；
（2）By step（1）Gained mixed solution adds 3.5 parts by weight propylene acid amides, 4 parts by weight of acrylic acid methyl esters and 0.4 weight
Part ammonium persulfate reacts 5h in 75 DEG C, is 6-8 by mixed solution regulation pH after cooling, stand-by；
（3）By 45 parts by weight NBR latexes after 2.5 parts by weight hydrazine hydrates are added dropwise to while stirring, 15 parts by weight water are added, are stirred
After mixing 35 minutes until being well mixed, then 8 part by weight of boric acid and hydrogen peroxide mixture are added dropwise to, adjust the temperature to 50 DEG C, drop
After adding, temperature be increased to 90 DEG C reaction 2.5 hours after, add step（2）Gains mixing temperature keeps 70 DEG C of reactions 2 small
When, it is stand-by；
（4）To step（3）Be warming up to 80 DEG C in gains, add 0.4 parts by weight calcium chloride and be demulsified, after drying with 25 weight
Part sound insulation packing material is added to banbury banburying together, and temperature control is at 110 DEG C, banburying 18 minutes, filter glue after cooling, and
On opening rubber mixing machine, under conditions of 85 DEG C of temperature, 0.2 parts by weight stearic acid, 2.5 parts by weight silane couplers, 0.2 are added
Parts by weight Hinered phenols antioxidant, 0.3 parts by weight captax, and 3.5 parts by weight sulphur be kneaded it is uniform, after parking 18 hours
Extruder is extruded, and by continuous 170 DEG C of curing cages, is prepared into vulcanizable rubber piece, both high tenacity absorbing sound and lowering noise modification
Nitrile rubber vulcanizable rubber piece.
The regulation pH is adjusted using sodium hydroxide and hydrochloric acid.
Described boric acid is boric acid and hydrogen peroxide 1 with hydrogen peroxide mixture：（0.8-1）Mixing.
Described sound insulation packing material is one in glass microballoon, barium sulfate, talcum powder, graphite powder, Cab-O-sil, flake asbestos
Kind is several.
Claims (4)
- A kind of 1. preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece, it is characterised in that including with Lower step：（1）10-15 parts by weight of graphite alkene is added into 1-2 parts by weight sodium bromide and 80-100 parts by weight water mixes, regulation pH is 10- 12, add in container and add 20-30 weight starch after 60-90 DEG C of reaction 2-4 hour, stirred in 60-90 DEG C of water bath with thermostatic control Mix 20-35 minutes add 5-10 parts by weight epoxy propane be heated to 60-70 DEG C reaction 2-8 hours after, it is stand-by；（2）By step（1）Gained mixed solution adds 3-4 parts by weight propylene acid amides, 3-5 parts by weight of acrylic acid methyl esters and 0.3- 0.5 parts by weight ammonium persulfate reacts 4-6h in 70-80 DEG C, is 6-8 by mixed solution regulation pH after cooling, stand-by；（3）By 40-50 parts by weight NBR latex after 2-3 parts by weight hydrazine hydrates are added dropwise to while stirring, 10-20 parts by weight are added Water, after stirring 30-40 minutes are until be well mixed, then 2-10 part by weight of boric acid and hydrogen peroxide mixture are added dropwise to, regulation temperature Degree is to 45-55 DEG C, after being added dropwise, after temperature is increased to 85-95 DEG C of reaction 2-3 hour, adds step（2）Gains mixing temperature Degree is kept for 50-80 DEG C of reaction 1-3 hour, stand-by；（4）To step（3）75-85 DEG C is warming up in gains, 0.3-0.5 parts by weight calcium chloride is added and is demulsified, after drying With being added to banbury banburying together with 20-30 parts by weight sound insulation packing materials, temperature control is at 100-120 DEG C, banburying 15-20 Minute, filter glue after cooling, and on opening rubber mixing machine, under conditions of 80-90 DEG C of temperature, it is stearic to add 0.1-0.3 parts by weight Acid, 2-3 parts by weight silane coupler, 0.1-0.3 parts by weight Hinered phenols antioxidants, 0.2-0.4 parts by weight captaxs, and 2-5 Parts by weight sulphur is kneaded uniformly, is extruded in extruder after parking 12-24 hours, by continuous 160-180 DEG C of curing cage, is prepared into Vulcanizable rubber piece, both the high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece.
- 2. according to a kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece of claim 1, it is special Sign is that the regulation pH is adjusted using sodium hydroxide and hydrochloric acid.
- 3. according to a kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece of claim 1, it is special Sign is that described boric acid is boric acid and hydrogen peroxide 1 with hydrogen peroxide mixture：（0.8-1）Mixing.
- 4. according to a kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece of claim 1, it is special Sign is that described sound insulation packing material is one in glass microballoon, barium sulfate, talcum powder, graphite powder, Cab-O-sil, flake asbestos Kind is several.
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| CN201711427485.2A CN107880341A (en) | 2017-12-26 | 2017-12-26 | A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece |
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| CN201711427485.2A CN107880341A (en) | 2017-12-26 | 2017-12-26 | A kind of preparation method of high tenacity absorbing sound and lowering noise modified butadiene acrylonitrile rubber vulcanizable rubber piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288287A (en) * | 2018-09-30 | 2019-02-01 | 湖州欧贝得门业有限公司 | The Furniture panel of noise reduction |
Citations (4)
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| CN1478794A (en) * | 2003-07-07 | 2004-03-03 | 江南大学 | Four element complex denatured starch sizing material and its preparation method and application |
| WO2005059023A1 (en) * | 2003-12-15 | 2005-06-30 | Absorbent Technologies, Inc. | A superabsorbent polymer product including a bioactive, growth-promoting additive |
| CN102161785A (en) * | 2011-03-10 | 2011-08-24 | 四川大学 | Preparation method of graphene/polymer nano composite material |
| CN102617901A (en) * | 2012-03-22 | 2012-08-01 | 北京化工大学 | Application of hydrogenated nitrile latex |
-
2017
- 2017-12-26 CN CN201711427485.2A patent/CN107880341A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478794A (en) * | 2003-07-07 | 2004-03-03 | 江南大学 | Four element complex denatured starch sizing material and its preparation method and application |
| WO2005059023A1 (en) * | 2003-12-15 | 2005-06-30 | Absorbent Technologies, Inc. | A superabsorbent polymer product including a bioactive, growth-promoting additive |
| CN102161785A (en) * | 2011-03-10 | 2011-08-24 | 四川大学 | Preparation method of graphene/polymer nano composite material |
| CN102617901A (en) * | 2012-03-22 | 2012-08-01 | 北京化工大学 | Application of hydrogenated nitrile latex |
Non-Patent Citations (2)
| Title |
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| 扶雄等: "《食用变性淀粉》", 31 March 2016 * |
| 罗亦飞等: ""酚醛改性淀粉/丁腈橡胶复合材料的研究"", 《特种橡胶制品》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288287A (en) * | 2018-09-30 | 2019-02-01 | 湖州欧贝得门业有限公司 | The Furniture panel of noise reduction |
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Application publication date: 20180406 |