CN108409973A - A kind of rubber and preparation method thereof for Foldable basin - Google Patents
A kind of rubber and preparation method thereof for Foldable basin Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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Abstract
The invention belongs to rubber materials, and in particular to a kind of rubber and preparation method thereof for Foldable basin.The invention discloses a kind of preparation methods of the rubber for Foldable basin, include the following steps：It is prepared by S1 mixed with polybutadiene objects；It is prepared by the poly- NBR latexes of S2；S3 is grafted poly- latex and prepares；S4 is grafted glue.Rubber produced by the present invention for Foldable basin has good resistance to ag(e)ing, still has tensile strength, elongation at break, impact strength, bending strength and elasticity in preferable physics and chemical property and mechanical property in long-term use, storage；Meanwhile the rubber produced by the present invention for Foldable basin has preferable abrasion resistance, heat resistance and elasticity, safety and environmental protection is harmless, and service life is longer.
Description
Technical field
The invention belongs to rubber materials, and in particular to a kind of rubber and preparation method thereof for Foldable basin.
Background technology
People travel outdoors or go on business, in order to prevent the various diseases in cross-infection due to using the public sanitary equipment at hotel
Disease, it is a kind of selection of wisdom to carry Foldable basin.Foldable basin is divided into part, lower part, basin bottom and foldable middle section,
Center darted section material is rubber, but existing rubber is often easy to aging, such as deforms, becomes fragile, is hardened, furthermore wearability
Difference, non-refractory, elasticity are also undesirable.
Chinese patent application CN107474174A discloses a kind of method producing butadiene rubber, and this method includes：Molten
Under liquid polymeric reaction condition, 1,3-butadiene monomer and solvent are introduced into polymer reactor and carry out polymerisation, and will be described
The part butadiene rubber glue that the exit of polymer reactor obtains is recycled back to the entrance of the polymer reactor, remainder
Butadiene rubber glue introduces following process unit as crude product.Although the technique has preferable energy-saving effect, the party
Butadiene rubber made from method is easy to aging, and wearability and elasticity are to be improved.
Chinese patent Shen CN104530514A discloses a kind of preparation method of modified butadiene acrylonitrile rubber, the modified butyronitrile rubber of this kind
Glue presses following weight：40 ~ 50 parts of butadiene, 20 ~ 30 parts of acrylonitrile, 70 ~ 80 parts of aerosil, zinc oxide 6 ~ 8
Part, dibutyl phthalate is 8 ~ 15 parts, 2 ~ 3 parts of emulsifier, 1 ~ 5 part of pyridyl amides heat resist modification agent, demulsifier 2
~ 4 parts, 1 ~ 2 part of anti-aging agent, 3 parts of sulphur, accelerating agent is 5 ~ 6 parts, and Effect of Organosilicon-modified Phenol-formaldehyde Resin is 8 ~ 14 parts.The invention is made
The heat resistance of nitrile rubber improve, but its resistance to ag(e)ing is poor.
Invention content
In order to solve the problems in the existing technology, the purpose of the present invention is to provide a kind of rubber for Foldable basin
And preparation method thereof.Rubber produced by the present invention for Foldable basin has good resistance to ag(e)ing, abrasion resistance, heat resistance and bullet
Property, and Environmental Safety, it is harmless.
The present invention provides a kind of preparation methods of the rubber for Foldable basin, include the following steps：
80-100mL benzene is added into reaction kettle by S1, closed to vacuumize, and butadiene and load cobalt catalyst is added, is warming up to 80-
120 DEG C, polymerisation 1-3h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
10-15g fatty acid soaps, 5-10g sodium sulphate and 30-50mL water are added into another reaction kettle by S2, stir 20-40min,
40-60mL ethyl acrylates, 20-40mL methacrylic acids and 1-5mL dithioglycols are added while stirring, is warming up to 60-80 DEG C,
It is eventually adding initiator, is warming up to 100-120 DEG C, is centrifuged, washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 20-40mL tetrahydrofurans S3, is warming up to 100-110 DEG C, vacuum
10-20min obtains mixed with polybutadiene liquid；Poly- NBR latex obtained by step S2 is added into sodium dodecyl sulfate solution, is risen
For temperature to 80-120 DEG C, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；The polymerized emulsion is added
Enter into 10-30mL 1- allyl -3- methylimidazole villaumite solution, be uniformly mixed, 40-50mL styrene and 3- is added in stirring
7mL 1,3- dimercaptopropane are warming up to 110-130 DEG C, react 1-3h, cooling, centrifuge, wash, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 30-50mL tetrahydrofurans obtained by step S3, be heated to 100-120 DEG C, stirring is added
60-80g toluene di-isocyanate(TDI)s and dimethyl terephthalate (DMT) mixture, react 1-2h, and vacuum outgas adds 5-10g tri-
Hydroxymethyl-propane and 1-3g catalyst, 100 DEG C of constant temperature vacuumizes 20-40min, then is warming up to 160-180 DEG C, leads to nitrogen, stirring
React 30-60min, filter, washing, it is dry to get.
Further, the preparation method of load cobalt catalyst is in the step S1：
（1）5g dry silica gels are weighed, 20mL toluene, ultrasonic 20min is added, 3mL methyl triethylsilane ultrasound 2h are added in stirring,
It filters, it is dry, obtain improved silica；
（2）3.5g aluminium isopropoxides are dissolved in 20mL absolute ethyl alcohols, aluminium isopropoxide solution is obtained；0.3g cobalt nitrates are dissolved in 2mL water
In, obtain cobalt nitrate ethanol solution；
（3）By step（2）Gained cobalt nitrate ethanol solution is added to aluminium isopropoxide solution, and it is 7.1 that ammonium hydroxide, which is added, to pH in stirring, is stirred
Reaction 8h is mixed, 50mL acetone and step is added in stirring（1）Gained improved silica impregnates 12h, stands, and washs, and filters, and does
It is dry to get.
Further, the addition of butadiene is 60-80g in the step S1, and the addition of load cobalt catalyst is
0.5-2.5g。
Further, in the step S2 initiator by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition.
Further, sodium dodecyl sulfate solution is dodecyl sulphur that mass concentration is 60-80% in the step S3
Acid sodium aqueous solution.
Further, the weight ratio of toluene di-isocyanate(TDI) and dimethyl terephthalate (DMT) is 2 in the step S4:3.
Further, in the step S4 catalyst by butyl titanate and Dibutyltin oxide by weight 2:3 compositions.
Modified combined with aluminium hydroxide of silica gel carries out Co catalysts supported, obtained Supported Co catalysis by the present invention
Agent, and polymerisation is carried out to monomer butadiene under the action of supported Co catalysts, obtain a kind of mixed with polybutadiene object.
Meanwhile the present invention for existing nitrile rubber and butadiene rubber it is easy to aging, wear no resistance, be thermo-labile the features such as, by poly- butyronitrile
Be glued branch after reacted again with polybutadiene, form a kind of poly- lotion of the grafting of better performances, finally with toluene di-isocyanate(TDI) and
Dimethyl terephthalate (DMT) carries out graft copolymerization, forms a kind of non-aging rubber.
Compared with prior art, the rubber produced by the present invention for Foldable basin has good resistance to ag(e)ing, long-term
Use, still have tensile strength in preferable physics and chemical property and mechanical property, elongation at break, impact strong in storage
Degree, bending strength and elasticity；Meanwhile the rubber produced by the present invention for Foldable basin have preferable abrasion resistance, heat resistance and
Elasticity, safety and environmental protection is harmless, and service life is longer.
Specific implementation mode
Below by specific embodiment the present invention will be further explained explanation, these embodiments are only used for the mesh of illustration
, it is not intended to limit protection scope of the present invention.
A kind of preparation method of the rubber for Foldable basin of embodiment 1
80mL benzene is added into reaction kettle by S1, closed to vacuumize, and 60g butadiene and 0.5g load cobalt catalysts is added, is warming up to
80 DEG C, polymerisation 1h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
10g fatty acid soaps, 5g sodium sulphate and 30mL water are added into another reaction kettle by S2, stir 20min, are added while stirring
40-60mL ethyl acrylates, 20mL methacrylic acids and 1-5mL dithioglycols, are warming up to 60 DEG C, are eventually adding initiator, institute
Initiator is stated by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition, is warming up to 100 DEG C, centrifuges, and washing obtains poly- nitrile rubber
Breast；
Mixed with polybutadiene object obtained by step S1 is added into 20mL tetrahydrofurans S3, is warming up to 100 DEG C, vacuum 10min,
Obtain mixed with polybutadiene liquid；The lauryl sodium sulfate water for being 60% to mass concentration is added in poly- NBR latex obtained by step S2
In solution, 80 DEG C are warming up to, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；By the polygalacto
Liquid is added into 10mL 1- allyl -3- methylimidazole villaumite solution, is uniformly mixed, and 40mL styrene and 3mL is added in stirring
1,3- dimercaptopropane is warming up to 110 DEG C, reacts 1h, cooling, centrifuges, washs, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 30mL tetrahydrofurans obtained by step S3, be heated to 100 DEG C, 60g toluene two is added in stirring
Isocyanates and dimethyl terephthalate (DMT) mixture, the wherein weight ratio of toluene di-isocyanate(TDI) and dimethyl terephthalate (DMT)
2:3,1h is reacted, vacuum outgas adds 5g trimethylolpropanes and 1g catalyst, and the catalyst is by butyl titanate and two
Butyl tin oxide is by weight 2:3 compositions, 100 DEG C of constant temperature vacuumizes 20-40min, then is warming up to 160 DEG C, leads to nitrogen, and stirring is anti-
Answer 30min, filter, washing, it is dry to get.
The preparation method of load cobalt catalyst is in the step S1：
（1）5g dry silica gels are weighed, 20mL toluene, ultrasonic 20min is added, 3mL methyl triethylsilane ultrasound 2h are added in stirring,
It filters, it is dry, obtain improved silica；
（2）3.5g aluminium isopropoxides are dissolved in 20mL absolute ethyl alcohols, aluminium isopropoxide solution is obtained；0.3g cobalt nitrates are dissolved in 2mL water
In, obtain cobalt nitrate ethanol solution；
（3）By step（2）Gained cobalt nitrate ethanol solution is added to aluminium isopropoxide solution, and it is 7.1 that ammonium hydroxide, which is added, to pH in stirring, is stirred
Reaction 8h is mixed, 50mL acetone and step is added in stirring（1）Gained improved silica impregnates 12h, stands, and washs, and filters, and does
It is dry to get.
A kind of preparation method of the rubber for Foldable basin of embodiment 2
90mL benzene is added into reaction kettle by S1, closed to vacuumize, and 70g butadiene and 1.5g load cobalt catalysts is added, is warming up to
100 DEG C, polymerisation 2h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
12.5g fatty acid soaps, 7.5g sodium sulphate and 40mL water are added into another reaction kettle by S2, stir 30min, while stirring
50mL ethyl acrylates, 30mL methacrylic acids and 3mL dithioglycols is added, is warming up to 70 DEG C, is eventually adding initiator, it is described
Initiator is by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition, is warming up to 110 DEG C, centrifuges, and washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 30mL tetrahydrofurans S3, is warming up to 105 DEG C, vacuum 15min,
Obtain mixed with polybutadiene liquid；The lauryl sodium sulfate water for being 70% to mass concentration is added in poly- NBR latex obtained by step S2
In solution, 100 DEG C are warming up to, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；By the polymerization
Lotion is added into 20mL 1- allyl -3- methylimidazole villaumite solution, is uniformly mixed, and 45mL styrene and 5mL is added in stirring
1,3- dimercaptopropane is warming up to 120 DEG C, reacts 2h, cooling, centrifuges, washs, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 40mL tetrahydrofurans obtained by step S3, be heated to 110 DEG C, 70g toluene two is added in stirring
Isocyanates and dimethyl terephthalate (DMT) mixture, the wherein weight ratio of toluene di-isocyanate(TDI) and dimethyl terephthalate (DMT)
2:3,1.5h is reacted, vacuum outgas adds 7.5g trimethylolpropanes and 2g catalyst, and the catalyst is by butyl titanate
With Dibutyltin oxide by weight 2:3 compositions, 100 DEG C of constant temperature vacuumizes 30min, then is warming up to 170 DEG C, leads to nitrogen, stirring
React 45min, filter, washing, it is dry to get.
The preparation method of load cobalt catalyst is similar to Example 1 in the step S1.
A kind of preparation method of the rubber for Foldable basin of embodiment 3
100mL benzene is added into reaction kettle by S1, closed to vacuumize, and 80g butadiene and 2.5g load cobalt catalysts, heating is added
To 120 DEG C, polymerisation 3h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
15g fatty acid soaps, 10g sodium sulphate and 50mL water are added into another reaction kettle by S2, stir 40min, are added while stirring
60mL ethyl acrylates, 40mL methacrylic acids and 5mL dithioglycols, are warming up to 80 DEG C, are eventually adding initiator, the initiation
Agent is by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition, is warming up to 120 DEG C, centrifuges, and washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 40mL tetrahydrofurans S3, is warming up to 110 DEG C, vacuum 10-
20min obtains mixed with polybutadiene liquid；The dodecyl sulphur for being 80% to mass concentration is added in poly- NBR latex obtained by step S2
In acid sodium aqueous solution, 120 DEG C are warming up to, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；By institute
It states polymerized emulsion to be added into 30mL 1- allyl -3- methylimidazole villaumite solution, be uniformly mixed, 50mL benzene second is added in stirring
Alkene and 7mL 1,3- dimercaptopropanes are warming up to 130 DEG C, react 3h, cooling, centrifuge, wash, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 30-50mL tetrahydrofurans obtained by step S3, be heated to 120 DEG C, 80g first is added in stirring
Phenylene diisocyanate and dimethyl terephthalate (DMT) mixture, the wherein weight of toluene di-isocyanate(TDI) and dimethyl terephthalate (DMT)
Measure ratio 2:3,2h is reacted, vacuum outgas adds 10g trimethylolpropanes and 3g catalyst, and the catalyst is by four fourth of metatitanic acid
Ester is with Dibutyltin oxide by weight 2:3 compositions, 100 DEG C of constant temperature vacuumizes 40min, then is warming up to 180 DEG C, leads to nitrogen, stirs
Mix reaction 60min, filter, washing, it is dry to get.
The preparation method of load cobalt catalyst is similar to Example 1 in the step S1.
A kind of preparation method of the rubber for Foldable basin of comparative example 1
90mL benzene is added into reaction kettle by S1, closed to vacuumize, and 70g butadiene and the catalysis of 1.5g diacetyl acetone cobalts is added
Agent is warming up to 100 DEG C, polymerisation 2h, then antioxidant 264 is added to terminate reaction, cooling, washs, dry, obtains mixed with polybutadiene
Object；
12.5g fatty acid soaps, 7.5g sodium sulphate and 40mL water are added into another reaction kettle by S2, stir 30min, while stirring
50mL ethyl acrylates, 30mL methacrylic acids and 3mL dithioglycols is added, is warming up to 70 DEG C, is eventually adding initiator, it is described
Initiator is by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition, is warming up to 110 DEG C, centrifuges, and washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 30mL tetrahydrofurans S3, is warming up to 105 DEG C, vacuum 15min,
Obtain mixed with polybutadiene liquid；The lauryl sodium sulfate water for being 70% to mass concentration is added in poly- NBR latex obtained by step S2
In solution, 100 DEG C are warming up to, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；By the polymerization
Lotion is added into 20mL 1- allyl -3- methylimidazole villaumite solution, is uniformly mixed, and 45mL styrene and 5mL is added in stirring
1,3- dimercaptopropane is warming up to 120 DEG C, reacts 2h, cooling, centrifuges, washs, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 40mL tetrahydrofurans obtained by step S3, be heated to 110 DEG C, 70g toluene two is added in stirring
Isocyanates and dimethyl terephthalate (DMT) mixture, the wherein weight ratio of toluene di-isocyanate(TDI) and dimethyl terephthalate (DMT)
2:3,1.5h is reacted, vacuum outgas adds 7.5g trimethylolpropanes and 2g catalyst, and the catalyst is by butyl titanate
With Dibutyltin oxide by weight 2:3 compositions, 100 DEG C of constant temperature vacuumizes 30min, then is warming up to 170 DEG C, leads to nitrogen, stirring
React 45min, filter, washing, it is dry to get.
The difference from example 2 is that the load cobalt catalyst in step S1 is replaced with the catalysis of diacetyl acetone cobalt
Agent.
A kind of preparation method of the rubber for Foldable basin of comparative example 2
90mL benzene is added into reaction kettle by S1, closed to vacuumize, and 70g butadiene and 1.5g load cobalt catalysts is added, is warming up to
100 DEG C, polymerisation 2h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
12.5g fatty acid soaps, 7.5g sodium sulphate and 40mL water are added into another reaction kettle by S2, stir 30min, while stirring
50mL ethyl acrylates, 30mL methacrylic acids and 3mL dithioglycols is added, is warming up to 70 DEG C, is eventually adding initiator, it is described
Initiator is by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition, is warming up to 110 DEG C, centrifuges, and washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 30mL tetrahydrofurans S3, is warming up to 105 DEG C, vacuum 15min,
Obtain mixed with polybutadiene liquid；The lauryl sodium sulfate water for being 70% to mass concentration is added in poly- NBR latex obtained by step S2
In solution, 100 DEG C are warming up to, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；By the polymerization
Lotion is added into 20mL 1- allyl -3- methylimidazole villaumite solution, is uniformly mixed, and 45mL styrene and 5mL is added in stirring
1,3- dimercaptopropane is warming up to 120 DEG C, reacts 2h, cooling, centrifuges, washs, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 40mL tetrahydrofurans obtained by step S3, be heated to 110 DEG C, 70g toluene two is added in stirring
Isocyanates reacts 1.5h, and vacuum outgas adds 7.5g trimethylolpropanes and 2g catalyst, and the catalyst is by metatitanic acid
Four butyl esters are with Dibutyltin oxide by weight 2:3 compositions, 100 DEG C of constant temperature vacuumizes 30min, then is warming up to 170 DEG C, leads to nitrogen
Gas is stirred to react 45min, filters, washing, it is dry to get.
The preparation method of load cobalt catalyst is similar to Example 1 in the step S1.
The difference from example 2 is that being not added with dimethyl terephthalate (DMT) in step S4.
Test example one, performance test
1. test material：The embodiment 1-3 and comparative example 1-2 rubber obtained for being used for Foldable basin；
2. content of the test：Hardness is measured by standard GB/T/T531.1-2008, GB/T528-2009 measures tensile strength and drawing
Disconnected elongation, GB/T161-2009 measure resilience, and GB/T9867-1988 measures DIN abrasion, and GB/T3512-2001 measures old
Change performance, other are measured according to the national standard of rubber；
3. test result：Performance measurement result is shown in Table 1.
1 performance measurement result of table
As shown in Table 1, the rubber produced by the present invention for Foldable basin have preferable performance, especially elasticity, resistance to ag(e)ing,
Abrasion resistance, heat resistance.Compared with comparative example 1-2,1-3 of the embodiment of the present invention rubber performances obtained for Foldable basin are preferable,
Illustrate that the present invention program can effectively improve ageing-resistant, the elastic and wear-resisting property of rubber.Meanwhile comparative example 1-3 it is found that
The embodiment of the present invention 2 is preferred embodiment.
In addition, the rubber to being used for Foldable basin made from 1-3 of the embodiment of the present invention, ventilation are placed 3 months on the sunny side, it is detected
Tensile strength, elongation rate of tensile failure and deformation, know tensile strength, elongation rate of tensile failure and deform three indexs changing value be less than 7%,
Illustrate that there is preferable ageing-resistant performance during the rubber produced by the present invention for Foldable basin is placed for a long time again.
Claims (8)
1. a kind of preparation method of rubber for Foldable basin, which is characterized in that include the following steps：
80-100mL benzene is added into reaction kettle by S1, closed to vacuumize, and butadiene and load cobalt catalyst is added, is warming up to 80-
120 DEG C, polymerisation 1-3h, then antioxidant 264 is added to terminate reaction, it is cooling, it washs, it is dry, obtain mixed with polybutadiene object；
10-15g fatty acid soaps, 5-10g sodium sulphate and 30-50mL water are added into another reaction kettle by S2, stir 20-40min,
40-60mL ethyl acrylates, 20-40mL methacrylic acids and 1-5mL dithioglycols are added while stirring, is warming up to 60-80 DEG C,
It is eventually adding initiator, is warming up to 100-120 DEG C, is centrifuged, washing obtains poly- NBR latex；
Mixed with polybutadiene object obtained by step S1 is added into 20-40mL tetrahydrofurans S3, is warming up to 100-110 DEG C, vacuum
10-20min obtains mixed with polybutadiene liquid；Poly- NBR latex obtained by step S2 is added into sodium dodecyl sulfate solution, is risen
For temperature to 80-120 DEG C, the mixed with polybutadiene liquid is added in stirring, is uniformly mixed, obtains polymerized emulsion；The polymerized emulsion is added
Enter into 10-30mL 1- allyl -3- methylimidazole villaumite solution, be uniformly mixed, 40-50mL styrene and 3- is added in stirring
7mL 1,3- dimercaptopropane are warming up to 110-130 DEG C, react 1-3h, cooling, centrifuge, wash, dry, must be grafted poly- latex；
S4 will be grafted poly- latex and be added in 30-50mL tetrahydrofurans obtained by step S3, be heated to 100-120 DEG C, stirring is added
60-80g toluene di-isocyanate(TDI)s and dimethyl terephthalate (DMT) mixture, react 1-2h, and vacuum outgas adds 5-10g tri-
Hydroxymethyl-propane and 1-3g catalyst, 100 DEG C of constant temperature vacuumizes 20-40min, then is warming up to 160-180 DEG C, leads to nitrogen, stirring
React 30-60min, filter, washing, it is dry to get.
2. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that loaded in the step S1
The preparation method of Co catalysts is：
5g dry silica gels are weighed, 20mL toluene, ultrasonic 20min is added, 3mL methyl triethylsilane ultrasound 2h are added in stirring, take out
Filter, it is dry, obtain improved silica；
3.5g aluminium isopropoxides are dissolved in 20mL absolute ethyl alcohols, aluminium isopropoxide solution is obtained；0.3g cobalt nitrates are dissolved in 2mL water,
Obtain cobalt nitrate ethanol solution；
By step（2）Gained cobalt nitrate ethanol solution is added to aluminium isopropoxide solution, and it is 7.1 that ammonium hydroxide, which is added, to pH in stirring, is stirred
8h is reacted, 50mL acetone and step is added in stirring（1）Gained improved silica impregnates 12h, stands, and washs, and filters, dry,
To obtain the final product.
3. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that fourth two in the step S1
The addition of alkene is 60-80g, and the addition of load cobalt catalyst is 0.5-2.5g.
4. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that cause in the step S2
Agent is by ammonium persulfate and ammonium ceric nitrate by weight 3:1 composition.
5. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that 12 in the step S3
Sodium alkyl sulfate solution is the lauryl sodium sulfate aqueous solution that mass concentration is 60-80%.
6. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that toluene in the step S4
The weight ratio of diisocyanate and dimethyl terephthalate (DMT) is 2:3.
7. the preparation method for the rubber of Foldable basin as described in claim 1, which is characterized in that be catalyzed in the step S4
Agent is by butyl titanate and Dibutyltin oxide by weight 2:3 compositions.
8. rubber made from a kind of preparation method of rubber for Foldable basin as described in claim 1-7 is any.
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| CN106854288A (en) * | 2016-11-10 | 2017-06-16 | 安徽博硕科技有限公司 | A kind of viscosity attapulgite high/polyacrylic acid nano plural gel and preparation method thereof |
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Application publication date: 20180817 |