CN109337132A - A kind of free from extraneous odour NR material prescription and preparation method thereof - Google Patents
A kind of free from extraneous odour NR material prescription and preparation method thereof Download PDFInfo
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- CN109337132A CN109337132A CN201811131014.1A CN201811131014A CN109337132A CN 109337132 A CN109337132 A CN 109337132A CN 201811131014 A CN201811131014 A CN 201811131014A CN 109337132 A CN109337132 A CN 109337132A
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C08J2307/00—Characterised by the use of natural rubber
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2309/06—Copolymers with styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/06—Copolymers with styrene
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Abstract
The invention discloses a kind of free from extraneous odour NR material prescriptions and preparation method thereof, are related to technical field of polymer materials.The present invention includes following component in parts by weight: 40-70 parts of NR, 20-40 parts of SBR, 10-20 parts of BR, 50-75 parts of carbon black, 5-10 parts of white carbon black, 10-40 parts of modified filler and processing aid；The sum of parts by weight of NR, SBR and BR three are 100 parts；Carbon black includes: the general purpose furnace black of the high abrasion furnace black of 50-70%, the semi-reinforcing furnace black of 20-40%, 10-20% by weight percentage；The amount ratio of SBR and BR is 2:1.The present invention carries out taste masking, taste of dispelling to NR material by can be good at added with deodorant.
Description
Technical field
The invention belongs to technical field of polymer materials, are no different more particularly to a kind of free from extraneous odour NR material prescription and one kind
The preparation method of taste NR material.
Background technique
Sebific duct is hollow flexible tubular rubber product, is mostly used to convey gas, liquid, pulpous state or granular material, by interior
Outer glue-line and casing play composition, in order to improve the ageing-resistant of sebific duct and other performances, are often producing during producing sebific duct
It is added with a large amount of processing aids in the process；Acid can be generated in rubber product processing or use process after the use of processing aid
Class, alkoxide compound, aldehydes, vinyl compound, Ammonia etc. have the substance of penetrating odor, the object of these penetrating odors
It will cause environmental pollution in air if matter is volatilized for a long time.
Summary of the invention
The purpose of the present invention is to provide a kind of free from extraneous odour NR material prescriptions and preparation method thereof, by with NR, SBR and BR
Main colloid system is constituted, and by adding the reinforcing and filling system being made of carbon black, white carbon black and modified filler, simultaneously added with adding
Work auxiliary agent, rubber material obtained have excellent structural strength；Simultaneously added with deodorant can be good to NR material into
Row taste masking, taste of dispelling.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of free from extraneous odour NR material prescription, in parts by weight includes following component: 40-70 parts of NR, SBR
20-40 parts, 10-20 parts of BR, 50-75 parts of carbon black, 5-10 parts of white carbon black, 10-40 parts of modified filler, 2.0-3.5 parts of vulcanizing agent,
3.0-4.5 parts of vulcanization aid, 1-2 parts of foaming agent, 0.5-1.5 parts of blowing promotor, 0.2-1 parts of deodorant, 1-5 parts of aging aids,
3-7 parts of activating agent, 2-5 parts of plasticizer and other auxiliary agents；
Wherein, the sum of parts by weight of NR, SBR and BR three are 100 parts；
Wherein, the carbon black includes: the half reinforcement furnace of the high abrasion furnace black of 50-70%, 20-40% by weight percentage
Black, 10-20% general purpose furnace black；
Described, the amount ratio of the SBR and BR are 2:1.
Further, the preparation method of the modified filler includes the following steps:
S01, configuration modified solution: taking viscosity is that the chitosan of 0.25-0.65Pas boils 30-60min, uses deionization
Water rinsing, obtains chitosan gel rubber after dry；Chitosan gel rubber is placed in lactic acid solution, is continuously stirred at a temperature of 40-50 DEG C
4-6h obtains that chitosan viscogel is spare, and gained chitosan viscogel is modified solution after placing 12-16h；
S02, filler pre-treatment: filler is put into 500-600 DEG C of calcining 2-4h in high temperature furnace, cooling is filled out up to pretreatment
Material；
S03, filler modified: the pretreated filler and modified solution that will be obtained are uniformly mixed rear stewing process 4-8h；
S04, modified post-processing: it is filled out after stewing process with dry powder processed after deionized water dilution, filtering, cleaning up to modification
Material.
Further, the filler includes one in diatomite, clay, talcum powder, mica powder, calcium carbonate and magnesium carbonate
Kind is a variety of.
Further, the vulcanizing agent selects sulphur, and the vulcanization aid selects tetramethylthiuram disulfide.
Further, other described auxiliary agents include rubber solvent, coupling agent, tackifier, dispersing agent, wetting agent and anti-corrosion
Agent.
Further, the aging aids include anti-aging agent, light stabilizer, mould inhibitor, flame retardant and antistatic agent.
Further, the plasticizer includes physics plasticizer and chemical plasticizing agent；
Wherein, the physics plasticizer includes high aromatic oil, naphthenic oil, chain naphthenic oil, Petropols, petroleum drip
Blueness, coal tar, coumarone indene resin, pine tar, black/white ointment, castor oil, glycerol, stearic acid, stearate, phthalic acid
Dimethyl ester, diethyl phthalate, dibutyl phthalate, dihexyl phthalate；
Wherein, the chemical plasticizing agent include 2- thionaphthol, dimethylbenzene thionaphthol, trichlorothiophenol, five fluorine thiophenols and
Five fluorine thiophenol zinc salts.
A kind of preparation method of free from extraneous odour NR material, includes the following steps:
Step 1, primary mixing: according to the ratio by NR, 60% dosage carbon black investment mixer, mixing is warming up to 95-105
DEG C, modified filler and plasticizer are put into mixer, are continued mixing 60-80S and are warming up to 160-165 DEG C；Pass through twin-screw
Extruder slice rewinding obtains a rubber compound, and rewinding is cooling after rubber compound supercooling sink of gained is cooled to 45-50 DEG C
It is 35-45 DEG C to material heap central temperature；
Step 2, secondary mixing: a rubber compound after cooling, SBR, BR, 40% dosage carbon black, foaming agent, foaming are helped
Agent, deodorant, aging aids, activating agent and other auxiliary agents are put into mixer together, and mixing is warming up to 100-105 DEG C；It throws
Enter white carbon black to continue mixing 30-40S and be warming up to 137-142 DEG C；It keeps continuing constant temperature mixing 120- between 137-142 DEG C
140S obtains secondary rubber compound by double screw extruder slice rewinding after being warming up to 145-150 DEG C after constant temperature mixing；By gained two
Secondary rubber compound supercooling sink in constant refrigeration room is cooled to 25-35 DEG C after being cooled to 45-50 DEG C；
Wherein, the room temperature of the constant refrigeration room is controlled at 22-25 DEG C；
Step 3, eventually refining: the secondary rubber compound of gained is put into mixer together with vulcanizing agent, vulcanization aid, mixing 90-
150S simultaneously obtains finished composition by double screw extruder slice rewinding after being warming up to 105-110 DEG C, and gained finished composition is placed in constant temperature
Room is cooled to 35-40 DEG C；
Wherein, the room temperature of the thermostatic chamber is controlled at 35-40 DEG C.
Further, the slice thickness in the step 1, step 2 and step 3 is 6-10mm.
A kind of free from extraneous odour NR material is produced for sebific duct.
The invention has the following advantages:
The present invention passes through addition by carbon black, white carbon black and modified filler by being constituted main colloid system with NR, SBR and BR
The reinforcing and filling system of composition, simultaneously added with processing aid, rubber material obtained has excellent structural strength；Add simultaneously
It can be good at carrying out taste masking, taste of dispelling to NR material added with deodorant.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
Described in following examples:
Various component raw materials are as shown in following table one:
Embodiment 1
The preparation method of modified filler includes the following steps:
S01, configuration modified solution: taking viscosity is that the chitosan of 0.25-0.65Pas boils 30-60min, uses deionization
Water rinsing, obtains chitosan gel rubber after dry；Chitosan gel rubber is placed in lactic acid solution, is continuously stirred at a temperature of 40-50 DEG C
4-6h obtains that chitosan viscogel is spare, and gained chitosan viscogel is modified solution after placing 12-16h；
S02, filler pre-treatment: filler is put into 500-600 DEG C of calcining 2-4h in high temperature furnace, cooling is filled out up to pretreatment
Material；
S03, filler modified: the pretreated filler and modified solution that will be obtained are uniformly mixed rear stewing process 4-8h；
S04, modified post-processing: it is filled out after stewing process with dry powder processed after deionized water dilution, filtering, cleaning up to modification
Material.
Wherein, filler is diatomite/clay/talcum powder/calcium carbonate.
Embodiment 2
A kind of free from extraneous odour NR material prescription, it is characterised in that: in parts by weight include following component: 40 parts of NR, SBR 40
Part, BR20 parts, 60 parts of carbon black, 8 parts of white carbon black, 35 parts of modified filler, 2.5 parts of vulcanizing agent, 3.5 parts of vulcanization aid, foaming agent 2
Part, 1.5 parts of blowing promotor, 1 part of deodorant, 3.5 parts of aging aids, 5 parts of activating agent, 2 parts of plasticizer and other auxiliary agents；
Wherein, carbon black includes: 60% high abrasion furnace black, 30% semi-reinforcing furnace black, 10% by weight percentage
General purpose furnace black.
A kind of preparation method of free from extraneous odour NR material, includes the following steps:
Step 1, primary mixing: according to the ratio by NR, 60% dosage carbon black investment mixer, mixing is warming up to 95-105
DEG C, modified filler and plasticizer are put into mixer, are continued mixing 60-80S and are warming up to 160-165 DEG C；Pass through twin-screw
Extruder slice rewinding obtains a rubber compound, and rewinding is cooling after rubber compound supercooling sink of gained is cooled to 45-50 DEG C
It is 35-45 DEG C to material heap central temperature；
Step 2, secondary mixing: a rubber compound after cooling, SBR, BR, 40% dosage carbon black, foaming agent, foaming are helped
Agent, deodorant, aging aids, activating agent and other auxiliary agents are put into mixer together, and mixing is warming up to 100-105 DEG C；It throws
Enter white carbon black to continue mixing 30-40S and be warming up to 137-142 DEG C；It keeps continuing constant temperature mixing 120- between 137-142 DEG C
140S obtains secondary rubber compound by double screw extruder slice rewinding after being warming up to 145-150 DEG C after constant temperature mixing；By gained two
Secondary rubber compound supercooling sink in constant refrigeration room is cooled to 25-35 DEG C after being cooled to 45-50 DEG C；
Wherein, the room temperature of constant refrigeration room is controlled at 22-25 DEG C；
Step 3, eventually refining: the secondary rubber compound of gained is put into mixer together with vulcanizing agent, vulcanization aid, mixing 90-
150S simultaneously obtains finished composition by double screw extruder slice rewinding after being warming up to 105-110 DEG C, and gained finished composition is placed in constant temperature
Room is cooled to 35-40 DEG C；
Wherein, the room temperature of thermostatic chamber is controlled at 35-40 DEG C.
Preferably, the slice thickness in step 1, step 2 and step 3 is 6-10mm.
Embodiment 3
A kind of free from extraneous odour NR material prescription, it is characterised in that: in parts by weight include following component: 70 parts of NR, SBR 20
Part, 10 parts of BR, 55 parts of carbon black, 5 parts of white carbon black, 15 parts of modified filler, 2.5 parts of vulcanizing agent, 3.0 parts of vulcanization aid, foaming agent 2
Part, 0.5 part of blowing promotor, 0.75 part of deodorant, 1.5 parts of aging aids, 3 parts of activating agent, 5 parts of plasticizer and other auxiliary agents；
Wherein, carbon black includes: 50% high abrasion furnace black, 30% semi-reinforcing furnace black, 20% by weight percentage
General purpose furnace black.
Preparation process is the same as embodiment 2.
Embodiment 4
A kind of free from extraneous odour NR material prescription, it is characterised in that: in parts by weight include following component: 55 parts of NR, SBR 30
Part, 15 parts of BR, 50-75 parts of carbon black, 10 parts of white carbon black, 25 parts of modified filler, 3.5 parts of vulcanizing agent, 4.0 parts of vulcanization aid, foaming
1.25 parts of agent, 1 part of blowing promotor, 0.5 part of deodorant, 5 parts of aging aids, 7 parts of activating agent, 3 parts of plasticizer and other auxiliary agents；
Wherein, carbon black includes: 70% high abrasion furnace black, 20% semi-reinforcing furnace black, 10% by weight percentage
General purpose furnace black.
Preparation process is the same as embodiment 2.
Embodiment 5
Performance test and result are as shown in the table:
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (10)
1. a kind of free from extraneous odour NR material prescription, it is characterised in that: in parts by weight include following component: NR40-70 parts, SBR20-
40 parts, BR10-20 parts, 50-75 parts of carbon black, 5-10 parts of white carbon black, 10-40 parts of modified filler, 2.0-3.5 parts of vulcanizing agent, vulcanization
3.0-4.5 parts of auxiliary agent, 1-2 parts of foaming agent, 0.5-1.5 parts of blowing promotor, 0.2-1 parts of deodorant, 1-5 parts of aging aids, activity
3-7 parts of agent, 2-5 parts of plasticizer and other auxiliary agents；
Wherein, the sum of parts by weight of NR, SBR and BR three are 100 parts；
Wherein, the carbon black include: by weight percentage the high abrasion furnace black of 50-70%, 20-40% semi-reinforcing furnace black,
The general purpose furnace black of 10-20%；
Described, the amount ratio of the SBR and BR are 2:1.
2. a kind of free from extraneous odour NR material prescription according to claim 1, which is characterized in that the preparation side of the modified filler
Method includes the following steps:
S01, configuration modified solution: taking viscosity is that the chitosan of 0.25-0.65Pas boils 30-60min, is floated with deionized water
It washes, obtains chitosan gel rubber after dry；Chitosan gel rubber is placed in lactic acid solution, continuously stirs 4-6h at a temperature of 40-50 DEG C,
Obtain that chitosan viscogel is spare, and gained chitosan viscogel is modified solution after placing 12-16h；
S02, filler pre-treatment: being put into 500-600 DEG C of calcining 2-4h in high temperature furnace for filler, cooling up to pretreated filler；
S03, filler modified: the pretreated filler and modified solution that will be obtained are uniformly mixed rear stewing process 4-8h；
S04, modified post-processing: with dry powder processed after deionized water dilution, filtering, cleaning up to modified filler after stewing process.
3. a kind of free from extraneous odour NR material prescription according to claim 2 and preparation method thereof, which is characterized in that the filler
It include one of diatomite, clay, talcum powder, mica powder, calcium carbonate and magnesium carbonate or a variety of.
4. a kind of free from extraneous odour NR material prescription according to claim 1, which is characterized in that the vulcanizing agent selects sulphur,
The vulcanization aid selects tetramethylthiuram disulfide.
5. a kind of free from extraneous odour NR material prescription according to claim 1, which is characterized in that other described auxiliary agents include rubber
Peptizing agent, coupling agent, tackifier, dispersing agent, wetting agent and preservative.
6. a kind of free from extraneous odour NR material prescription according to claim 1, which is characterized in that the aging aids include anti-
Old agent, light stabilizer, mould inhibitor, flame retardant and antistatic agent.
7. a kind of free from extraneous odour NR material prescription according to claim 1, which is characterized in that the plasticizer includes that physics increases
Mould agent and chemical plasticizing agent；
Wherein, the physics plasticizer include high aromatic oil, naphthenic oil, chain naphthenic oil, Petropols, asphalt,
Coal tar, coumarone indene resin, pine tar, black/white ointment, castor oil, glycerol, stearic acid, stearate, phthalic acid diformazan
Ester, diethyl phthalate, dibutyl phthalate, dihexyl phthalate；
Wherein, the chemical plasticizing agent includes 2- thionaphthol, dimethylbenzene thionaphthol, trichlorothiophenol, five fluorine thiophenols and five fluorine
Thiophenol zinc salt.
8. a kind of preparation method of free from extraneous odour NR material as described in claim 1-7 is any one, which is characterized in that including as follows
Step:
Step 1, primary mixing: according to the ratio by NR, 60% dosage carbon black investment mixer, mixing is warming up to 95-105 DEG C, to
Modified filler and plasticizer are put into mixer, continue mixing 60-80S and are warming up to 160-165 DEG C；Pass through twin-screw extrusion
Machine slice rewinding obtains a rubber compound, and rewinding is cooled to material after rubber compound supercooling sink of gained is cooled to 45-50 DEG C
Heap central temperature is 35-45 DEG C；
Step 2, secondary mixing: by a rubber compound after cooling, SBR, BR, 40% dosage carbon black, foaming agent, blowing promotor,
Deodorant, aging aids, activating agent and other auxiliary agents are put into mixer together, and mixing is warming up to 100-105 DEG C；It puts into white
Carbon black continues mixing 30-40S and is warming up to 137-142 DEG C；It keeps continuing constant temperature mixing 120-140S between 137-142 DEG C, it is permanent
Secondary rubber compound is obtained by double screw extruder slice rewinding after being warming up to 145-150 DEG C after warm mixing；By the secondary mixing of gained
Glue supercooling sink in constant refrigeration room is cooled to 25-35 DEG C after being cooled to 45-50 DEG C；
Wherein, the room temperature of the constant refrigeration room is controlled at 22-25 DEG C；
Step 3, eventually refining: the secondary rubber compound of gained is put into mixer together with vulcanizing agent, vulcanization aid, mixing 90-150S
And finished composition is obtained by double screw extruder slice rewinding after being warming up to 105-110 DEG C, it is cold that gained finished composition is placed in thermostatic chamber
But to 35-40 DEG C；
Wherein, the room temperature of the thermostatic chamber is controlled at 35-40 DEG C.
9. a kind of preparation method of free from extraneous odour NR material according to claim 1, which is characterized in that the step 1, step
2 and step 3 in slice thickness be 6-10mm.
10. a kind of free from extraneous odour NR material as described in claim 1-7 is any one is produced for sebific duct.
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| CN201811131014.1A CN109337132A (en) | 2018-09-27 | 2018-09-27 | A kind of free from extraneous odour NR material prescription and preparation method thereof |
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| CN201811131014.1A CN109337132A (en) | 2018-09-27 | 2018-09-27 | A kind of free from extraneous odour NR material prescription and preparation method thereof |
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| US20040214916A1 (en) * | 2003-04-25 | 2004-10-28 | Bhawan Patel | Antimicrobial fluoroelastomer rubber articles and compositions |
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| CN104321374A (en) * | 2012-04-18 | 2015-01-28 | 株式会社普利司通 | Rubber foam composition and rubber foam using same |
| CN103352396A (en) * | 2013-06-09 | 2013-10-16 | 华东理工大学 | Method for preparing gypsum whiskers through organic/inorganic composite coating modification |
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Application publication date: 20190215 |