CN103613961A - Method for reducing interfacial tension of water-soluble inorganic oxidant or water-soluble inorganic salt in oil-soluble material - Google Patents
Method for reducing interfacial tension of water-soluble inorganic oxidant or water-soluble inorganic salt in oil-soluble material Download PDFInfo
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Abstract
The invention discloses a method for reducing interfacial tension of a water-soluble inorganic oxidant or a water-soluble inorganic salt in an oil-soluble material, which belongs to the technical fields of new materials and chemical industry. The method comprises the following steps: firstly, dissolving stearic acid and sodium stearate in 1, 2-propylene glycol to form a mixed solution; then, adding butyl titanate and ethanol in the mixed solution, reacting at an environmental temperature of 105 DEG C, cooling the reaction system to 90 DEG C, adding the water-soluble inorganic oxidant or the water-soluble inorganic salt, reacting while stirring, and cooling to obtain the water-soluble inorganic oxidant or water-soluble inorganic salt with reduced interfacial tension. The method disclosed by the invention can effectively reduce the interfacial tension of the water-soluble inorganic oxidant or the water-soluble inorganic salt with the oil-soluble material and improve the encapsulation efficiency of the oil-soluble material on the water-soluble inorganic oxidant or the water-soluble inorganic salt.
Description
Technical field
The invention belongs to novel material, technical field of chemistry and chemical engineering.
Background technology
Water-soluble inorganic oxygenant or water-soluble inorganic salt (as cerium oxide, sodium peroxide, Sodium Persulfate, ammonium persulphate, Potassium Persulphate etc.) are widely used in the manufacture of aniline dyestuff, decolouring and the bleaching of the initiation of the oxidation color development of vat pigment, metal finishing, organic synthesis, polymer polymerization, oil, change lose in the fields such as the ripener, oil production of the washing of yeast and deodorization, wheat.But above-mentioned water-soluble inorganic oxygenant or water-soluble inorganic salt are extremely unstable at ambient temperature, as be subject to moisture in air to its deliquescence caking, easy decomposes etc.
For addressing the above problem, now widely used technology is the lapping in above-mentioned water-soluble inorganic oxygenant or water-soluble inorganic salt outside bag one deck and external environment isolation.Conventional lapping has the oil-soluble materials such as polystyrene, polyacrylonitrile, whiteruss.But these water-soluble inorganic oxygenants or water-soluble inorganic salt are hydrophilic, and above-mentioned all kinds of lapping belongs to oil loving, so be difficult to effectively both be combined.
Summary of the invention
The present invention seeks in order to propose a kind of reduction water-soluble inorganic salt of water-soluble inorganic oxygenant or water-soluble inorganic salt encapsulation ratio that improves in the method for oil-soluble material median surface tension force.
Technical solution of the present invention is: first stearic acid and sodium stearate are dissolved in 1,2-PD, form mixing solutions; Then butyl (tetra) titanate and ethanol are added to mixing solutions, under the envrionment temperature of 105 ℃, reaction is to after finishing, temperature of reaction system is down to 90 ℃, add again water-soluble inorganic oxygenant or water-soluble inorganic salt, under agitation condition, reaction is to finishing, through cooling, must reduce water-soluble inorganic oxygenant or the water-soluble inorganic salt of interfacial tension.
The present invention carries out surface modification by above method to water-soluble inorganic oxygenant or water-soluble inorganic salt, effectively reduce the interfacial tension of water-soluble inorganic oxygenant or water-soluble inorganic salt and oil-soluble material, adopt above water-soluble inorganic oxygenant or the water-soluble inorganic salt that reduces interfacial tension with lappings such as polystyrene, polyacrylonitrile, whiterusss, to wrap up processing again, the encapsulation rate to 60% of oil-soluble material to water-soluble inorganic oxygenant or water-soluble inorganic salt just can be improved.
Water-soluble inorganic oxygenant of the present invention or water-soluble inorganic salt and butyl (tetra) titanate, stearic acid, sodium stearate, 1,2-propylene glycol, ethanol account for respectively 69%～92%, 1%～5%, 0.5%～3%, 0.5%～3%, 5%～10% and 1%～10% of the total mass that feeds intake.
When the addition of above-mentioned each raw material is in the above scope limiting, the interfacial tension of water-soluble inorganic oxygenant or water-soluble inorganic salt and oil-soluble material is minimum, and cost control is in lower scope.
Described water-soluble inorganic oxygenant or water-soluble inorganic salt are Sodium Persulfate, or cerium oxide, or sodium peroxide, or ammonium persulphate, or Potassium Persulphate.
Accompanying drawing explanation
Fig. 1 is the Sodium Persulfate scanning electron microscope (SEM) photograph of non-modified.
Fig. 2 is the Sodium Persulfate scanning electron microscope (SEM) photograph after modification.
Fig. 3 is for adopting the Sodium Persulfate scanning electron microscope (SEM) photograph of polyacrylonitrile parcel non-modified.
Fig. 4 is for adopting the Sodium Persulfate scanning electron microscope (SEM) photograph of polyacrylonitrile parcel after modification.
Embodiment
One, preparation technology: accurately take the stearic acid of certain mass ratio and sodium stearate in there-necked flask, add the 1,2-PD of an amount that it is dissolved completely.Then slowly add a certain amount of butyl (tetra) titanate and alcohol mixeding liquid under the condition of 105 ℃, to react after 70 minutes, temperature of reaction is down to 90 ℃, then add the Sodium Persulfate of respective quality or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate, continue rapid stirring reaction 2 hours.Refrigerating unit, receives sample.
By following specific embodiments, contribute to understand the present invention, but do not limit content of the present invention.
In its concrete composition, each component accounts for the per-cent (100%) of the total mass that feeds intake and is:
Scheme 1: butyl (tetra) titanate 2%, stearic acid 2%, sodium stearate 0.5%, 1,2-propylene glycol 5%, ethanol 4%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 2: butyl (tetra) titanate 3%, stearic acid 3%, sodium stearate 1%, 1,2-propylene glycol 8%, ethanol 2%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 3: butyl (tetra) titanate 3.5%, stearic acid 2.5%, sodium stearate 1.5%, 1,2-propylene glycol 6%, ethanol 2%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 4: butyl (tetra) titanate 5%, stearic acid 3%, sodium stearate 3%, 1,2-propylene glycol 8%, ethanol 8%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 5: butyl (tetra) titanate 2.5%, stearic acid 2.5%, sodium stearate 1.5%, 1,2-propylene glycol 5%, ethanol 2%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 6: butyl (tetra) titanate 1%, stearic acid 0.5%, sodium stearate 0.5%, 1,2-propylene glycol 5%, ethanol 1%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Scheme 7: butyl (tetra) titanate 5%, stearic acid 3%, sodium stearate 3%, 1,2-propylene glycol 10%, ethanol 10%, all the other are Sodium Persulfate (or cerium oxide, sodium peroxide, ammonium persulphate, Potassium Persulphate).
Two, the scanning electron microscope (SEM) photograph before water-soluble inorganic oxygenant or water-soluble inorganic salt (as Sodium Persulfate) modification and after modification, as shown in Figure 1, 2.
As can be seen from Fig. 1: the Sodium Persulfate surface of non-modified is smooth form.
As can be seen from Fig. 2: the material of the Sodium Persulfate surface coverage one deck oleophilic drainage after modification, and between Sodium Persulfate particle, there is the phenomenon of adhesion.
Three, application:
Each 1.0g of Sodium Persulfate by before and after modification, is placed on respectively in the graduated cylinder with grinding port plug and scale, then adds white oil to 30 ml, shakes 2 minutes, observes its sedimentation time, makes following table.
From following table, can find out, after unmodified Sodium Persulfate is added in white oil, Sodium Persulfate sinks to the end very soon, and all sedimentations; And after Sodium Persulfate after modification adds in white oil, can in white oil, be suspended into 49 ~ 57 seconds, then slowly sink to the end.
As can be seen from Fig. 3: polyacrylonitrile is difficult to deposition or is wrapped in the Sodium Persulfate surface of non-modified, makes its encapsulation rate lower.
As can be seen from Fig. 4: polyacrylonitrile can deposit or be wrapped in the Sodium Persulfate surface through modification completely, has improved significantly its encapsulation rate.
Claims (3)
1. reduce water-soluble inorganic salt in a method for oil-soluble material median surface tension force, it is characterized in that first stearic acid and sodium stearate being dissolved in 1,2-PD, form mixing solutions; Then butyl (tetra) titanate and ethanol are added to mixing solutions, under the envrionment temperature of 105 ℃, reaction is to after finishing, temperature of reaction system is down to 90 ℃, add again water-soluble inorganic oxygenant or water-soluble inorganic salt, under agitation condition, reaction is to finishing, through cooling, must reduce water-soluble inorganic oxygenant or the water-soluble inorganic salt of interfacial tension.
2. preparation method according to claim 1, what it is characterized in that described water-soluble inorganic oxygenant or water-soluble inorganic salt and butyl (tetra) titanate, stearic acid, sodium stearate, 1,2-propylene glycol, ethanol accounts for respectively 69%～92%, 1%～5%, 0.5%～3%, 0.5%～3%, 5%～10% and 1%～10% of the total mass that feeds intake.
3. preparation method according to claim 1, is characterized in that described water-soluble inorganic oxygenant or water-soluble inorganic salt are Sodium Persulfate, or cerium oxide, or sodium peroxide, or ammonium persulphate, or Potassium Persulphate.
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| CN113637350A (en) * | 2021-09-23 | 2021-11-12 | 杭州海迪斯新材料有限公司 | Preparation process of easily dispersible organic bentonite in high-polarity solvent system |
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| CN1918071A (en) * | 2004-02-06 | 2007-02-21 | 伊梅里斯矿物有限公司 | Ultrafine natural ground brucite |
| CN101020777A (en) * | 2007-03-19 | 2007-08-22 | 浙江工业大学 | Coiled polybutene pipe with high heat conductivity and its prepn |
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| CN113637350A (en) * | 2021-09-23 | 2021-11-12 | 杭州海迪斯新材料有限公司 | Preparation process of easily dispersible organic bentonite in high-polarity solvent system |
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