CN109942915A - A kind of anti-defect rubber material and preparation method thereof based on rigid macromolecule skeleton - Google Patents
A kind of anti-defect rubber material and preparation method thereof based on rigid macromolecule skeleton Download PDFInfo
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Abstract
The invention discloses a kind of anti-defect rubber material and preparation method thereof containing rigid macromolecule skeleton structure, material is using rigid macromolecule as reinforced phase, using rubber material as discrete phase, being total to construction from part by lotion makes rigid macromolecule form cellular rigid-skeleton in rubber mass, to enhance the mechanical property of rubber material and assign rubber material notch insensitivity.It, which prepares to take, first carries out presulfurization for rubber material latex, it is acidified again after the completion of presulfurization, rigid macromolecule is dissolved into progress lotion in the rubber material lotion after the solution that water is produced is added to acidification to assemble altogether, it is sufficiently mixed assembling and carries out film molding later, resulting film is crosslinked, high temperature vulcanizes the rubber material for obtaining being produced again.Anti- defect rubber material provided by the invention can bear the stress largely loaded, dissipation energy, Anticrack similar to cellular rigid-skeleton, and rubber material is made to have good intensity, toughness, notch insensitivity.
Description
Technical field
The present invention relates to technical field of rubber material, and in particular to a kind of anti-defect rubber based on rigid macromolecule skeleton
Material and preparation method thereof.
Background technique
Rubber material is widely used in fields such as communications and transportation, aerospace, military affairs, electronics, is a kind of vital
Material.During practical application, under certain severe Service Environments, the surface or inside of rubber material can generate big size
Small defect not only influences the normal use of material, more likely brings serious security risk.The anti-of rubber material is improved to lack
Sunken ability is always the project that the scientific worker of fields pays close attention to.Some biomaterials pass through special in nature
Extremely excellent anti-defective may be implemented in structure and component design.For example, some rigid biomaterials such as shell biology
Nacre, bone, enamel etc. possess the unique layer structure formed by soft, hard component periodic distribution, therefore protecting
While demonstrate,proving intensity and rigidity, there is high toughness and anti-defective outstanding.The flexible biological tissue of some anti-defects is such as
Muscle, blood vessel, skin etc. are also to have other component storied placement to form by modulus.Be inspired in these nature materials structure and
Component design, a large amount of bionical anti-defective material come into being.T.Nguye etc. is prepared for a kind of anti-by way of layer by layer deposition
The graphene of defect/polymethyl acrylate composite material passes through the stone of layer by layer deposition preparation compared with pure graphene oxide membrane
Black alkene/polymethyl acrylate composite material not only shows higher intensity and toughness, while showing extremely excellent anti-defect
Property.(Beese A M,An Z, Sarkar S,et al.Advanced Functional Materials,2014,24
(19):2883-2891.).Gong Jian equality is by relatively hard poly-dodecyl itaconic acid glyceride hydrogel and soft polypropylene
Amide hydrogel combination simultaneously forms layer structure, is prepared for having both the hydrogel of high tenacity, selfreparing, endurance and anti-defect.
(Haque M A,Kurokawa T,Kamita G,et al.MACROMOLECULES,2011,44(22):8916-8924.)。
Layer structure can be improved the toughness of material and assign the ability of the anti-defect of material, but this ability obviously have direction according to
Lai Xing, i.e., not only hard but also strong on the direction for be parallel to layer, not only soft but also weak on the direction perpendicular to layer, this undoubtedly will limit similar
The practical application of material.Therefore, it needs to explore new structure and can isotropically enhance, toughening, anti-defect.
Summary of the invention
For the deficiency of existing method, the first purpose of the invention is to provide one kind to have both high intensity, high tenacity, anti-lacks
Sunken rubber material；A second object of the present invention is to provide it is a kind of prepare high intensity, high tenacity, anti-defect rubber material side
Method.
Basic ideas of the invention are by introducing rigid backbone in rubber material matrix to realize enhancing rubber material
Mechanical property and assign rubber material notch insensitivity.The present invention prepares high intensity, high tenacity, anti-defect rubber material
Basic ideas are preferentially destroyed carry out dissipation energy under external force, prevent using rigid macromolecule skeleton as skeleton is sacrificed
Only stress is concentrated.In addition, the modulus change between the skeleton and matrix flexible of rigidity can significantly improve the anti-defect of material
Ability.The presence of rigid backbone makes the propagation path of crackle in the base more tortuous, is conducive to crack blunting and deflects,
So as to improve the anti-defect ability of material.
Anti- defect rubber material provided by the invention is to be total to group by lotion using rigid macromolecule material as reinforced phase
Dispersion of Reinforcement is formed cellular skeleton structure by dress method in the rubber material of discrete phase, to enhance the mechanics of rubber material
Performance simultaneously assigns rubber material extremely excellent notch insensitivity, and the constituent component of the anti-defect rubber material includes rubber
100 mass parts of glue material, rigid macromolecule material 0.2-10 mass parts, the vulcanization of rubber material quality dosage 1.5-2.5%
Agent, the vulcanization accelerator of rubber material quality dosage 0.5-1.2%.
In above-mentioned technical proposal of the invention, as the macromolecular material of skeleton, dosage priority acccess control is 0.5~10
Mass parts range.
In above-mentioned technical proposal of the invention, the rubber material as discrete phase is preferably selected from natural gum, butylbenzene
Glue, nitrile rubber, neoprene, Voncoat R 3310 or copolymer and methacrylate homopolymer or copolymer etc., Ji Kewei
One of they, or two or more in them.
In above-mentioned technical proposal of the invention, the rigid macromolecule material preferentially selects its cellulose molecular chain rigid
Property be greater than the macromolecular material of rubber molecular chain, it is further preferential that select molecular weight be the macromolecular material of 5000-1500000；
Yet further it is preferably selected from chitosan, protein, sodium alginate and cellulose.
The above-mentioned anti-defect rubber material based on rigid macromolecule skeleton of the present invention can pass through, and comprise the following steps that
It is prepared by method:
(1) latex presulfurization: the vulcanization agent dispersing liquid prepared through ball milling and vulcanization accelerator dispersion liquid are added according to formula
Enter into rubber material latex under stiring in 50-80 DEG C of presulfurization；
(2) preparation of rigid macromolecule material solution: rigid macromolecule material is added in water or spirit of vinegar stir it is molten
Solution obtains the rigid macromolecule material solution that mass fraction is 2-5%；
(3) preparation of rigid macromolecule skeleton enhancing rubber material: according to formula by rigid macromolecule made from step (3)
Material solution is added in prevulcanized rubber material latex made from step (1), and ultrasound removes bubble after being sufficiently stirred, and is stablized
Uniform mixed solution, forms a film at room temperature, and the crosslinking that gained film is soaked in progress rigid macromolecule in cross-linking agent solution is anti-
It answers, is sufficiently dried after reaction, will further be vulcanized at 90-130 DEG C in film merging vacuum drying oven of the crosslinking after dry, i.e.,
Obtain the rubber material of rigid macromolecule skeleton enhancing.
In above-mentioned preparation method of the invention, when rigid macromolecule material selection chitosan, also needed after latex presulfurization
Acidification, i.e., be added stabilizer after the completion of latex presulfurization, and acetic acid is added after being sufficiently stirred and is acidified, after latex is acidified
It enters back into next step；The additional amount of stabilizer is generally the 1.5-2.5 of rubber material quality dosage；The additional amount of acetic acid is by glue
It is Lactated to PH 3-6.
In above-mentioned preparation method of the invention, the crosslinking agent is preferably selected from glutaraldehyde, terephthalaldehyde, two Asia of carbonization
Amine, calcium chloride, epoxychloropropane etc. can be one of they, or two or more in them.
In above-mentioned preparation method of the invention, the vulcanization agent dispersing liquid and vulcanization accelerator dispersion liquid be vulcanizing agent and
Vulcanization accelerator is respectively implanted the dispersion liquid that ball mill adds water to be prepared.
It is excellent in vulcanizing agent and vulcanization accelerator mixed liquor addition rubber material latex in above-mentioned preparation method of the invention
First using presulfurization 1-2 hours under mechanical stirring；Rigid macromolecule material solution is added in rubber material lotion and preferentially adopts
It is mixed 1~30 minute with re-ultrasonic dispersion after dispersion mixing 1~12 hour under mechanical stirring.
Using the anti-defect rubber material profile made from the above method based on rigid macromolecule skeleton, mechanical property is used
The test of GB/T 529-1999 prescriptive procedure, tensile strength are 15~35MPa, and elongation at break is 450~850%, are broken tough
Property be 12~122KJ/m2；Energy dissipation capability characterization uses sample size and rate of extension specified in GB/T 529-1999,
The hysteresis loop of test sample calculates energy dissipation efficiency size, for characterizing the size of energy dissipation capability, test result table
The energy dissipation capability of the bright anti-defect rubber material based on rigid macromolecule skeleton is more evenly dispersed than pure rubber and macromolecular
Rubber material is 2-7 times high；Anti- defect capability representation is using sample size and rate of extension as defined in GB/T 529-1999, test
Tensile strength with notched sample calculates the tensile strength of sample and the change rate of fracture toughness, lacks for characterizing the anti-of material
The ability of falling into, the anti-defect performance of rubber material of the test result based on rigid macromolecule skeleton is substantially better than pure glue and macromolecular is equal
The rubber material of even dispersion, even if the rubber material based on rigid macromolecule skeleton also can in the presence of larger defect
Retain the mechanical strength of major part.It is good that the above test result shows that the rubber material based on rigid macromolecule skeleton has
Mechanical property, energy dissipation performance and anti-defect performance.
Macromolecular such as chitosan can only be dissolved in acidic aqueous solution, and rubber latex can be demulsified in acid condition, because
This chitosan and latex cannot form uniform suspension.Inventor is in the anti-defect rubber material based on rigid macromolecule skeleton
Research in find, latex stablize after be acidified, the uniform mixing carbon of chitosan solution and rubber latex may be implemented.Invention
People be based on it is above-mentioned complete the present invention, take by prevulcanized latex be added with stirring stabilizer stablize after, then with acetic acid into
Row acidification, then the latex after acidification is blended with chitosan solution, and direct formation of film at surface after stirring, ultrasound is made after dry and is based on
The anti-defect rubber material of rigid macromolecule skeleton.
Anti- defect rubber material provided by the invention based on rigid macromolecule skeleton divides directly under emulsion state with big
Sub- aqueous solution is blended, and by getting up the macromolecules cross-linking for being scattered in rubber matrix to form continuous skeleton, the skeleton is in stress
The lower preferential fracture of effect, dissipation energy make rubber material have good intensity and toughness.The skeleton is in rubber matrix simultaneously
Be it is continuous, crack propagation path can be made meandering, passivation and deflection crackle show rubber material excellent each to same
The anti-defect ability of property.This method not only avoids the use of organic solvent, has saved production cost, will not also cause brokenly to environment
It is bad, it is often more important that solve the directional dependence of current most of bionical anti-anti- defect abilities of defective material.The present invention provides
The anti-defect rubber material based on rigid macromolecule skeleton, there is high-intensitive, high tenacity and anti-defect ability outstanding,
And production cost is low, preparation process is simple, non-environmental-pollution, it is easy to accomplish large-scale industrial production.
Detailed description of the invention
Attached drawing 1 is the ess-strain correlation curve of the rubber material of embodiment 1 and comparative example 1, reacts the disconnected of rubber material
Resistance to spalling and elongation at break, wherein 1# represents the evenly dispersed rubber material of macromolecular, and 2#, which is represented, has the continuous bone of macromolecular
The rubber material of frame.As seen from the figure, the modulus and energy to failure of rubber material of the invention are substantially better than macromolecular and uniformly divide
The modulus and energy to failure of scattered rubber material.
Attached drawing 2 is the fracture toughness histogram of the rubber material of embodiment 1 and comparative example 1, and wherein it is equal to represent macromolecular by 1#
The rubber material of even dispersion, 2# represent the rubber material with the continuous skeleton of macromolecular.As seen from the figure, rubber of the invention
The fracture toughness of material is substantially better than the fracture toughness of pure rubber and the evenly dispersed rubber material of macromolecular.
Attached drawing 3 is the characterization of the anti-defect ability of the rubber material of embodiment 1, and wherein it is evenly dispersed to represent macromolecular by 1#
Rubber material, 2# represent the rubber material with the continuous skeleton of macromolecular.As can be seen from Figure, rubber material of the invention
Anti- defect ability is substantially better than other several high molecular materials.
Specific embodiment
The present invention is specifically described below by embodiment.It is necessarily pointed out that following embodiment is only
It is used to further illustrate the present invention, should not be understood as limiting the scope of the invention, which is skilled in technique
Personnel can make some nonessential modifications and adaptations according to the content of aforementioned present invention.
Embodiment 1
4.0g chitosan is added in the dilute acetic acid solution of mass fraction 1%, is stirred 2 hours, obtaining mass fraction is
2% chitosan solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH
Solution 2.5g, 10% potassium laurate solution 1.3g of mass fraction are configured to the aqueous solution that total mass fraction is 50%, then will match
The above-mentioned aqueous solution of system is added in the Heveatex that 167g solid content is 60%, is carried out mechanical stirring 1 hour at 70 DEG C,
Prevulcanized latex is obtained, 2g paregal O is added after standing overnight, is dissolved to paregal O within stirring 0.5 hour, mass fraction is added
It is 4 that latex is acidified to PH by 36% acetic acid 20ml.The chitosan solution previously prepared is added in the latex after acidification, is stirred
Ultrasound 30 minutes, gained mixing latex is poured into surface plate and is formed a film, drying to constant weight after mixing 12 hours.By the film leaching after drying
It steeps with cross-linked chitosan in the glutaraldehyde solution that mass fraction is 2%, soaking time is 10 hours.Deionized water is used after immersion
Washing film removes the glutaraldehyde of surface residual for several times.Film drying is placed on further vulcanized rubber in 130 DEG C of vacuum drying oven
Matrix, vulcanization time are 30 minutes, i.e. anti-defect rubber material of the acquisition based on chitosan skeleton.The tensile strength of sheet material is made
For 32.5MPa, initial modulus 18Mpa, elongation at break 700%, energy to failure 122KJ/m2。
Comparative example 1
4.0g chitosan is added in the dilute acetic acid solution of mass fraction 1%, is stirred 2 hours, obtaining mass fraction is
2% chitosan solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH
Solution 2.5g, 10% potassium laurate solution 1.3g of mass fraction are configured to the aqueous solution that total mass fraction is 50%, then will be upper
It states aqueous solution to be added in the Heveatex that 167g solid content is 60%, 2.0g paregal O is added, stirring 0.5 hour to average
O is added to dissolve, it is 4 that latex is acidified to PH by the acetic acid 20ml that mass fraction 36% is added.The chitosan solution previously dissolved is added
Enter in the latex to after vulcanization, ultrasound 30 minutes, gained mixing latex is poured into surface plate and is formed a film after stirring 12 hours, is dried
It does to constant weight.Film after drying is soaked in the glutaraldehyde solution that mass fraction is 2% with cross-linked chitosan, soaking time is
10 hours.The glutaraldehyde that film removes surface residual for several times is washed with deionized after immersion.Film after drying is opened through double roller
Refining, to destroy the skeleton structure of chitosan, then carries out rubber hot-forming at 143 DEG C.It is evenly dispersed to obtain chitosan
Rubber material.Be made sheet material tensile strength be 31MPa, initial modulus 2.5MPa, elongation at break 720%,
Energy to failure is 40KJ/m2。
Embodiment 2
6.0g fibroin is add to deionized water, is stirred 2 hours, the fibroin that mass fraction is 2% is obtained
Solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH solution 2.5g,
10% potassium laurate solution 1.3g of mass fraction is configured to the aqueous solution that total mass fraction is 50%, then adds above-mentioned aqueous solution
Enter in the styrene-butadiene latex for being 10% to 1000g solid content, carried out mechanical stirring 1 hour at 70 DEG C, obtains prevulcanized latex.
The fibroin solutions previously dissolved are added in prevulcanized latex, ultrasound 30 minutes, gained is mixed after stirring 12 hours
Latex is poured into surface plate and is formed a film, and drying to constant weight.Film after drying is soaked in the glutaraldehyde solution that mass fraction is 2%
To be crosslinked fibroin, soaking time is 10 hours.Film removes surface residual for several times penta 2 are washed with deionized after immersion
Aldehyde.Further vulcanized rubber matrix is further arranged in 130 DEG C of vacuum drying oven after film is dried, and the after cure time is 30 points
Clock.Obtain the anti-defect rubber material based on fibroin skeleton.The energy dissipation effect under sheet material stretching to 400% strain is made
Rate is 75%, fracture toughness 100KJ/m2。
Comparative example 2
3.0g fibroin is add to deionized water, is stirred 2 hours, the fibroin that mass fraction is 2% is obtained
Solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH solution 2.5g,
10% potassium laurate solution 1.3g of mass fraction is configured to the aqueous solution that total mass fraction is 50%, then adds above-mentioned aqueous solution
Enter in the styrene-butadiene latex for being 10% to 1000g solid content.The chitosan solution previously dissolved is added in styrene-butadiene latex, is stirred
Ultrasound 30 minutes, gained mixing latex is poured into surface plate and is formed a film, drying to constant weight after 12 hours.Film after drying is impregnated
To be crosslinked fibroin in the glutaraldehyde solution that mass fraction is 2%, soaking time is 10 hours.Deionized water is used after immersion
Washing film removes the glutaraldehyde of surface residual for several times.It will drying.By the film after drying through double roller mill, to destroy fibroin
Skeleton structure, then rubber is carried out at 143 DEG C hot-forming.Obtain the evenly dispersed rubber material of fibroin.System
Obtaining the energy dissipation efficiency under sheet material stretching to 400% strain is 25%, fracture toughness 34KJ/m2。
Embodiment 3
5.0g sodium alginate is add to deionized water, is stirred 2 hours, the sodium alginate that mass fraction is 2% is obtained
Solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH solution 2.5g,
10% potassium laurate solution 1.3g of mass fraction is configured to the aqueous solution that total mass fraction is 50%, then adds above-mentioned aqueous solution
Entering to 200g solid content is to carry out mechanical stirring 1 hour at 70 DEG C in 50% butyronitrile emulsion, obtains prevulcanized latex.It will be first
The sodium alginate soln of preceding dissolution is added in the latex after presulfurization, and ultrasound 30 minutes, gained is mixed after stirring 12 hours
Latex is poured into surface plate and is formed a film, and drying to constant weight.Film after drying is soaked in the calcium chloride solution that mass fraction is 2%
With crossslinked sodium alginate, soaking time is 10 hours.The chlorination that film removes surface residual for several times is washed with deionized after immersion
Calcium.Further vulcanized rubber matrix is further arranged in 130 DEG C of vacuum drying oven after film is dried, and the after cure time is 30 points
Clock.Obtain the anti-defect rubber material based on sodium alginate skeleton.Sheet material is made in notch tensile experiment, when notch depth is
Batten width 60% when, tensile strength 12.5MPa keeps the tensile strength of lossless batten 40% and 35% energy to failure.
Comparative example 3
5.0g sodium alginate is add to deionized water, is stirred 2 hours, the sodium alginate that mass fraction is 2% is obtained
Solution.By 3g sulphur, 2g ZDC, 4g the ZnO dispersion liquid obtained respectively through ball milling and mass fraction 20%KOH solution 2.5g,
10% potassium laurate solution 1.3g of mass fraction is configured to the aqueous solution that total mass fraction is 50%, then adds above-mentioned aqueous solution
Entering to 200g solid content is in 50% butyronitrile emulsion.The chitosan solution previously dissolved is added in NBR latex, stirring 12
Ultrasound 30 minutes, gained mixing latex is poured into surface plate and is formed a film, drying to constant weight after hour.Film after drying is soaked in
With crossslinked sodium alginate in the calcium chloride solution that mass fraction is 2%, soaking time is 10 hours.It is washed with deionized water after immersion
Wash the calcium chloride that film removes surface residual for several times.It will drying.By the film after drying through double roller mill, to destroy sodium alginate
Then skeleton structure carries out rubber hot-forming at 143 DEG C.Obtain the evenly dispersed rubber material of sodium alginate.It is made
Sheet material is in notch tensile experiment, and when notch depth is the 60% of batten width, tensile strength 0.5MPa keeps lossless sample
The tensile strength of item 2% and 1.5% energy to failure.
It can be seen that from the data of embodiment 1 and comparative example 1 and embodiment 2 and comparative example 2 in macromolecular mass fraction
Under the same conditions with preparation process condition, macromolecular be dispersed in the rubber material in rubber matrix modulus, fracture it is tough
Property and energy dissipation capability are poor, do not have with the rubber material prepared by the present invention based on continuous macromolecular skeleton comparable
Property.Compared by embodiment 3 and comparative example 3 it is found that the anti-of the rubber material prepared by the present invention based on continuous macromolecular skeleton lacks
Sunken performance is significantly better than the evenly dispersed rubber material of macromolecular.
Claims (10)
1. a kind of anti-defect rubber material based on rigid macromolecule skeleton, which is characterized in that using rigid macromolecule material as
Reinforced phase is total to construction from part by lotion and Dispersion of Reinforcement is formed cellular skeleton structure in the rubber material of discrete phase,
To enhance the mechanical property of rubber material and assign rubber material notch insensitivity, the group of the anti-defect rubber material is in groups
Dividing includes 100 mass parts of rubber material, rigid macromolecule material 0.2-10 mass parts, rubber material quality dosage 1.5-2.5%
Vulcanizing agent, the vulcanization accelerator of rubber material quality dosage 0.5-1.2%.
2. the anti-defect rubber material based on rigid macromolecule skeleton as described in claim 1, which is characterized in that the rigidity
The content of macromolecular material is 0.5~10 mass parts.
3. the anti-defect rubber material based on rigid macromolecule skeleton as claimed in claim 1 or 2, which is characterized in that rubber
Material is selected from natural gum, butadiene-styrene rubber, nitrile rubber, neoprene, Voncoat R 3310 or copolymer and methacrylate homopolymerization
Object or copolymer.
4. the anti-defect rubber material based on rigid macromolecule skeleton as claimed in claim 1 or 2, which is characterized in that described
Rigid macromolecule material is the macromolecular material that molecule chain rigidity is greater than rubber molecular chain.
5. the anti-defect rubber material based on rigid macromolecule skeleton as claimed in claim 4, which is characterized in that the rigidity
Macromolecular material is the macromolecular material of its molecular weight 5000-1500000.
6. the anti-defect rubber material based on rigid macromolecule skeleton as claimed in claim 5, which is characterized in that the rigidity
Macromolecular material is selected from chitosan, protein, sodium alginate, methacrylamide homopolymer, acrylamide copolymer, xanthan gum, card
Draw glue and cellulose etc..
7. the preparation method of the anti-defect rubber material described in one of claim 1 to 6 based on rigid macromolecule skeleton, feature
It is to comprise the following steps that:
(1) latex presulfurization: the vulcanization agent dispersing liquid prepared through ball milling and vulcanization accelerator dispersion liquid are added to according to formula
Under stiring in 50-80 DEG C of presulfurization in rubber material latex；
(2) preparation of rigid macromolecule material solution: rigid macromolecule material is added to stirring and dissolving in water or spirit of vinegar, is obtained
The rigid macromolecule material solution for being 2-5% to mass fraction；
(3) preparation of rigid macromolecule skeleton enhancing rubber material: according to formula by rigid macromolecule material made from step (3)
Solution is added in prevulcanized rubber material latex made from step (1), and ultrasound removes bubble after being sufficiently stirred, and obtains stable uniform
Mixed solution, form a film at room temperature, by gained film be soaked in cross-linking agent solution carry out rigid macromolecule cross-linking reaction, fill
It is dried after dividing reaction, further vulcanizes at 90-130 DEG C in the film merging vacuum drying oven after drying will be crosslinked, that is, obtain
The rubber material of rigid macromolecule skeleton enhancing.
8. the anti-defect rubber material and preparation method thereof based on rigid macromolecule skeleton as claimed in claim 7, feature
It is, stabilizer is added after the completion of rigid macromolecule material selection chitosan, latex presulfurization, acetic acid is added after being sufficiently stirred
It is acidified, is carried out in next step after acidification；The additional amount of stabilizer is the 1.5-2.5 of rubber material quality dosage；Acetic acid adds
Entering amount is that latex is acidified to PH 3-6.
9. the anti-defect rubber material and preparation method thereof based on rigid macromolecule skeleton as claimed in claim 7, feature
It is, the crosslinking agent is selected from glutaraldehyde, terephthalaldehyde, carbodiimides, calcium chloride and epoxychloropropane.
10. anti-defect rubber material based on rigid macromolecule skeleton and its preparation side as described in one of claim 7 to 9
Method, which is characterized in that the vulcanization agent dispersing liquid and vulcanization accelerator dispersion liquid are respectively implanted for vulcanizing agent and vulcanization accelerator
Ball mill adds the dispersion liquid that water for ball milling is prepared.
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| CN107474343A (en) * | 2017-07-31 | 2017-12-15 | 华南理工大学 | The method that one kettle way prepares ascidian nano micro crystal cellulose/rubber nano composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4102844A (en) * | 1973-09-22 | 1978-07-25 | Bayer Aktiengesellschaft | Dipped articles of rubber |
| CN101418088A (en) * | 2008-11-17 | 2009-04-29 | 中国热带农业科学院农产品加工研究所 | Silk/natural rubber antibacterial composite material and preparation method thereof |
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Application publication date: 20190628 |