CN113480943A - Polishing wax oil based on modified rice bran wax and preparation method thereof - Google Patents
Polishing wax oil based on modified rice bran wax and preparation method thereof Download PDFInfo
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- CN113480943A CN113480943A CN202110896128.0A CN202110896128A CN113480943A CN 113480943 A CN113480943 A CN 113480943A CN 202110896128 A CN202110896128 A CN 202110896128A CN 113480943 A CN113480943 A CN 113480943A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/06—Other polishing compositions
- C09G1/08—Other polishing compositions based on wax
- C09G1/10—Other polishing compositions based on wax based on mixtures of wax and natural or synthetic resin
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Abstract
The invention relates to the technical field of wax oil, in particular to polishing wax oil based on modified rice bran wax and a preparation method thereof. The method is characterized by comprising the following raw materials: modified rice bran wax emulsion, modified acrylic resin emulsion, deionized water, alcohol ether solvent, metal complex dye water and additive; the preparation method comprises the following steps: s1: weighing half of the total amount of the deionized water, and slowly adding the modified acrylic resin emulsion under the stirring state; s2: adding the modified rice bran wax emulsion; s3: adding metal complex dye water; s4: adding an additive; s5: weighing an alcohol ether solvent, and adding the alcohol ether solvent into the residual deionized water; s6: adding the solution obtained in the step S5 into the solution obtained in the step S4, and stirring until the solution is uniform and free of impurities; s7: and (5) filtering and packaging. Compared with the prior art, the polishing agent has good polishing performance, can be directly applied to the vamp, can be used after wax spraying, can be used after polishing, and has wide application range.
Description
Technical Field
The invention relates to the technical field of wax oil, in particular to polishing wax oil based on modified rice bran wax and a preparation method thereof.
Background
At present, various brightening agents are widely used in the market for polishing shoes and boots, and although the brightening agents can effectively enhance the brightness, the brightness is in a glass-type floating light due to the inherent film-forming performance of the brightening agents, and the brightening agents lack the texture of genuine leather.
Disclosure of Invention
The invention provides polishing wax oil based on modified rice bran wax and a preparation method thereof, aiming at overcoming the defects of the prior art, the polishing wax oil has good polishing performance, can be directly acted on vamps, can be used after wax water spraying, can be used after polishing, and has wide application range.
In order to achieve the purpose, the polishing wax oil based on the modified rice bran wax is designed, and is characterized by comprising the following raw materials in parts by weight: 48-55 parts of modified rice bran wax emulsion, 5-10 parts of modified acrylic resin emulsion, 20-30 parts of deionized water, 10-15 parts of alcohol ether solvent, 8-10 parts of metal complex dye water and 3-5 parts of additive; the sum of the contents of all the components is 100 parts;
the preparation method comprises the following steps:
s1: weighing half of the total amount of the deionized water, slowly adding the modified acrylic resin emulsion under the stirring state, and keeping the rotating speed at 200-;
s2: slowly adding the modified rice bran wax emulsion into the solution obtained in the step S1, keeping the rotating speed at 300-400 r/min, and stirring for 30-40 min until the solution is uniformly mixed;
s3: slowly adding metal complex dye water into the solution obtained in the step S2, keeping the rotating speed at 300-;
s4: weighing the additive, adding the additive into the mixed solution in the stirring state in the step S3, and keeping the mixed solution at 300-400 r/min;
s5: weighing an alcohol ether solvent, adding the alcohol ether solvent into the rest deionized water, uniformly stirring, and cooling the solution to normal temperature;
s6: increasing the rotation speed of the solution in the step S4 to 400-500 r/min, slowly adding the solution in the step S5, keeping the rotation speed, and stirring for 45-55 min until the solution is uniform and free of impurities;
s7: filtering and packaging.
The preparation method of the modified rice bran wax emulsion in the step S2 comprises the following steps:
s21, adding concentrated sulfuric acid with the concentration of 75% into a first enamel reaction kettle, keeping the continuous heating state, adding rice bran wax into the first enamel reaction kettle, continuously heating the rice bran wax to 90-100 ℃ to melt the rice bran wax, slowly adding 35% hydrogen peroxide solution under the stirring state, continuously stirring for 12-14 hours under the constant temperature condition of 90-100 ℃ to completely oxidize the rice bran wax, naturally cooling the rice bran wax to light beige, standing for 1-3 hours to separate the wax from water, and discharging the water at the lower layer;
s22, heating the enamel reaction kettle to 90-100 ℃, re-melting the oxidized rice bran wax on the upper layer into liquid, adding water under stirring, continuously stirring for 30-40 minutes, standing for 1-3 hours, separating the wax and the water, and discharging the water on the lower layer;
s23, repeating the step S2 for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;
s24, mixing the high-acid-value synthetic wax with methyl isopropyl ketone, heating to a high-acid-value synthetic wax for complete dissolution, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45-55 ℃, keeping the temperature for 30-40 minutes, and separating solid and liquid;
s25, carrying out vacuum distillation on the solid to obtain high-melting-point synthetic wax, and carrying out vacuum distillation on the liquid to obtain low-melting-point synthetic wax;
s26, putting the high-melting-point synthetic wax and the zinc oxide in the step S25 into a second enamel reaction kettle, heating to 150-160 ℃ to melt the high-melting-point synthetic wax, adding ethylene glycol to react for 5-8 hours, and washing with water after the reaction is finished to obtain first modified rice bran wax;
s27, putting the low-melting-point synthetic wax and the zinc oxide in the step S25 into a third enamel reaction kettle, heating to 150-160 ℃ to melt the low-melting-point synthetic wax, adding high-molecular polyethylene glycol, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;
s28, mixing and heating the first modified rice bran wax in the step S26, the second modified rice bran wax emulsion in the step S27 and an emulsifier to melt at 110 ℃, slowly adding deionized water at 100 ℃ in a stirring state, stirring to obtain uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the modified rice bran wax emulsion in the step S2.
The type of the modified acrylic resin emulsion is AR-332.
The alcohol ether solvent is one or more of ethanol, butanol, ethylene glycol ethyl ether and ethylene glycol butyl ether.
The additive is one or more of a leveling agent, a hand feeling agent, a mildew preventive and essence.
The mass ratio of the high-acid-value synthetic wax to the methyl isopropyl ketone in the step S24 is 1: 5.
In the step S26, the mass ratio of the high melting point synthetic wax to the zinc oxide is 100:1, and the mass ratio of the high melting point synthetic wax to the ethylene glycol is 20: 1.
In step S27, the mass ratio of the low-melting synthetic wax to the zinc oxide is 100:1, the mass ratio of the low-melting synthetic wax to the high molecular polyethylene glycol is 100:3, and the molecular weight of the high molecular polyethylene glycol is 400-.
In the step S28, the mass ratio of the first modified rice bran wax, the second modified rice bran wax emulsion, and the emulsifier is 96:3: 1.
The type of the emulsifier in the step S28 is OP-15.
Compared with the prior art, the polishing agent has good polishing performance, can be directly applied to the vamp, can be used after wax water spraying, can be used after polishing, and has wide application range.
Detailed Description
The first embodiment is as follows:
the polishing wax oil of the embodiment comprises the following raw materials in parts by weight: 50 parts of modified rice bran wax emulsion, 5 parts of modified acrylic resin emulsion, 21 parts of deionized water, 12 parts of alcohol ether solvent, 9 parts of metal complex dye water, 1 part of flatting agent, 0.5 part of hand feeling agent, 0.5 part of mildew preventive and 1 part of essence.
The method for preparing the polishing wax oil by using the raw materials comprises the following steps:
s1: weighing 10 parts of deionized water, slowly adding the modified acrylic resin emulsion under the stirring state, and keeping the rotating speed at 200 revolutions per minute;
s2: slowly adding the modified rice bran wax emulsion into the solution obtained in the step S1, keeping the rotating speed at 300 revolutions per minute, and stirring for 30 minutes until the solution is uniformly mixed;
s3: slowly adding metal complex dye water into the solution obtained in the step S2, keeping the rotating speed at 300 revolutions per minute, and stirring for 30 minutes until the metal complex dye water is uniformly mixed;
s4: weighing the flatting agent, the hand feeling agent, the mildew preventive and the essence, respectively adding into the mixed solution in the stirring state in the step S3, and keeping the mixed solution at 300 revolutions per minute;
s5: weighing 12 parts of alcohol ether solvent, adding into the rest 11 parts of deionized water, uniformly stirring, and cooling the solution to normal temperature;
s6: increasing the rotation speed of the solution in the step S4 to 400 revolutions per minute, slowly adding the solution in the step S5, keeping the rotation speed, and stirring for 45 minutes until the solution is uniform and free of impurities;
s7: filtering and packaging.
The type of the modified acrylic resin emulsion is AR-332, and the modified acrylic resin emulsion can be matched with the polishing performance of the modified rice bran wax. The modified acrylic resin emulsion is micromolecular modified acrylic resin, has good penetration, is soft and elastic in formed film, is not sticky, and is not sticky even if ironed at high temperature. The modified acrylic resin can increase the brightness, and the micromolecule modified acrylic resin is easy to permeate into leather, can be fixed on leather fibers together with the modified rice bran wax after being dried, is integrated with the leather fibers, and enhances the adhesiveness of the finally obtained polishing wax oil.
The alcohol ether solvent increases the permeability of each raw material, and ensures that the finally obtained polishing wax oil is easier to permeate. And may facilitate subsequent, more permanent storage. The alcohol ether solvent has small molecules, can quickly permeate into the skin, has extremely excellent water-oil amphoteric dissolving power, can help other dissolved materials to enter the interior of leather fibers, helps other materials to improve the performance of the leather from the microcosmic aspect, and achieves the purpose of enhancing the light sensation of the polishing wax oil. The drying speed can be controlled according to the boiling point of the alcohol ether solvent, for example, the alcohol ether solvent with high boiling point is used in summer, and the alcohol ether solvent with low boiling point is used in winter.
The preparation process of the modified rice bran wax emulsion in the step S2 comprises the following steps:
s21, adding 500kg of natural rice bran wax into a first enamel reaction kettle filled with 2200ml of 75% concentrated sulfuric acid in a heating state, continuously heating the rice bran wax to 90 ℃ to melt the rice bran wax, slowly adding 5000ml of 35% hydrogen peroxide solution in a stirring state, continuously stirring for 12 hours at a constant temperature of 90 ℃ to completely oxidize the rice bran wax, wherein the color of the rice bran wax is changed into light beige, naturally cooling, standing for 1 hour to separate the wax from water, and discharging the lower layer of water;
s22, heating the enamel reaction kettle to 90 ℃, re-melting the oxidized rice bran wax on the upper layer into liquid, adding water under stirring, continuously stirring for 30 minutes, standing for 1 hour, separating the wax and the water, and discharging the water on the lower layer;
s23, repeating the step S2 for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;
s24, mixing the high-acid-value synthetic wax with methyl isopropyl ketone, heating to a high-acid-value synthetic wax to be completely dissolved, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45 ℃, keeping the temperature for 30 minutes, and separating solid and liquid;
s25, vacuum distilling the solid to obtain high melting point synthetic wax;
s26, putting 200kg of high-melting-point synthetic wax and 2kg of zinc oxide into a second enamel reaction kettle, heating to 150 ℃ to melt the high-melting-point synthetic wax, adding 10kg of ethylene glycol to react for 5-8 hours, and washing with water after the reaction is finished to obtain modified rice bran wax;
s27, putting 200kg of low-melting-point synthetic wax and 2kg of zinc oxide into a third enamel reaction kettle, heating to 150 ℃ to melt the low-melting-point synthetic wax, adding 6kg of high-molecular polyethylene glycol with the molecular weight of 400, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;
s28, taking 96 parts of first modified rice bran wax, 3 parts of second modified rice bran wax emulsion and 1 part of emulsifier OP-15, mixing and heating to 100 ℃ for melting, slowly adding 500 parts of deionized water at 100 ℃ under the stirring state, stirring to obtain uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the modified rice bran wax emulsion of the step S2.
The methyl isopropyl ketone in the step S24 is an easily obtained organic solvent, the boiling point of the methyl isopropyl ketone is 79.6 ℃, and the melting point of the methyl isopropyl ketone is matched with the melting point of the rice bran wax after acidification modification; the dissolving power is excellent, and the dissolving power is strong for the intermediate after the rice bran wax acidification modification; the intermediate before modification of the rice bran wax is dissolved in the methyl isopropyl ketone to be very stable, and the problems of decomposition, coking and the like can not be generated at high temperature; because of the lower boiling point of methyl isopropyl ketone, methyl isopropyl ketone is easier to remove in the vacuum distillation process of step S25, the residue is less, and the influence on the synthetic wax is less.
In step S24, the high melting point synthetic wax precipitated in a solid state at 45 ℃ and the low melting point synthetic wax continued to exist in a solution state. After the wax is distinguished by melting points, high-melting point synthetic wax and low-melting point synthetic wax with different brightness and properties are obtained.
The high-melting-point synthetic wax obtained in the step S25 has high brightness, and on the basis, the brightness can be enhanced again through subsequent synthetic treatment to prepare the high-melting-point, high-hardness and high-brightness synthetic wax without uncontrollable or inconspicuous brightness improvement of a final product caused by interference of the low-melting-point wax. In step S26, the high melting point synthetic wax and ethylene glycol undergo a dehydration esterification reaction under the catalytic action of zinc oxide, and a modified rice bran wax with high gloss, high hardness and easy emulsification is obtained. The modified rice bran wax provides extremely strong polishing performance for the finally prepared polishing wax oil.
The self-emulsifying synthetic wax prepared by the subsequent treatment of the low-melting-point synthetic wax obtained in the step S25 has stable self-emulsifying performance, and incomplete emulsification caused by the existence of high-melting-point wax with limited self-emulsifying performance can be avoided. In step S27, the low melting point synthetic wax and the high molecular polyethylene glycol undergo a dehydration esterification reaction under the catalytic action of zinc oxide, so as to obtain a second modified rice bran wax emulsion with self-emulsifying property, and the second modified rice bran wax emulsion is soft and smooth in luster. The second modified rice bran wax emulsion provides a strong self-emulsifying capability for the finally prepared polishing wax oil.
The polishing wax oil obtained by the invention can be applied to the shoe making process. After the shoe is formed, the shoe can directly act on the vamp, can be used after wax water spraying, can be used after polishing, and has wide application range; after the wax oil is used and polished, the leather surface can be endowed with elegant and transparent luster, and the appearance effect and the grade of the shoes and boots are improved.
The polishing wax oil obtained by the invention can improve the surface gloss of the genuine leather and endow the leather surface with a transparent and elegant visual sense, and the polishing wax oil has excellent polishing performance, and after polishing, the transparent and elegant gloss is particularly prominent, so that the characteristic of the genuine leather can be ensured to the maximum extent.
Claims (10)
1. The polishing wax oil based on the modified rice bran wax is characterized by comprising the following raw materials in parts by weight: 48-55 parts of modified rice bran wax emulsion, 5-10 parts of modified acrylic resin emulsion, 20-30 parts of deionized water, 10-15 parts of alcohol ether solvent, 8-10 parts of metal complex dye water and 3-5 parts of additive; the sum of the contents of all the components is 100 parts;
the preparation method comprises the following steps:
s1: weighing half of the total amount of the deionized water, slowly adding the modified acrylic resin emulsion under the stirring state, and keeping the rotating speed at 200-;
s2: slowly adding the modified rice bran wax emulsion into the solution obtained in the step S1, keeping the rotating speed at 300-400 r/min, and stirring for 30-40 min until the solution is uniformly mixed;
s3: slowly adding metal complex dye water into the solution obtained in the step S2, keeping the rotating speed at 300-;
s4: weighing the additive, adding the additive into the mixed solution in the stirring state in the step S3, and keeping the mixed solution at 300-400 r/min;
s5: weighing an alcohol ether solvent, adding the alcohol ether solvent into the rest deionized water, uniformly stirring, and cooling the solution to normal temperature;
s6: increasing the rotation speed of the solution in the step S4 to 400-500 r/min, slowly adding the solution in the step S5, keeping the rotation speed, and stirring for 45-55 min until the solution is uniform and free of impurities;
s7: filtering and packaging.
2. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 1, wherein: the preparation method of the modified rice bran wax emulsion in the step S2 comprises the following steps:
s21, adding concentrated sulfuric acid with the concentration of 75% into a first enamel reaction kettle, keeping the continuous heating state, adding rice bran wax into the first enamel reaction kettle, continuously heating the rice bran wax to 90-100 ℃ to melt the rice bran wax, slowly adding 35% hydrogen peroxide solution under the stirring state, continuously stirring for 12-14 hours under the constant temperature condition of 90-100 ℃ to completely oxidize the rice bran wax, naturally cooling the rice bran wax to light beige, standing for 1-3 hours to separate the wax from water, and discharging the water at the lower layer;
s22, heating the enamel reaction kettle to 90-100 ℃, re-melting the oxidized rice bran wax on the upper layer into liquid, adding water under stirring, continuously stirring for 30-40 minutes, standing for 1-3 hours, separating the wax and the water, and discharging the water on the lower layer;
s23, repeating the step S2 for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;
s24, mixing the high-acid-value synthetic wax with methyl isopropyl ketone, heating to a high-acid-value synthetic wax for complete dissolution, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45-55 ℃, keeping the temperature for 30-40 minutes, and separating solid and liquid;
s25, carrying out vacuum distillation on the solid to obtain high-melting-point synthetic wax, and carrying out vacuum distillation on the liquid to obtain low-melting-point synthetic wax;
s26, putting the high-melting-point synthetic wax and the zinc oxide in the step S25 into a second enamel reaction kettle, heating to 150-160 ℃ to melt the high-melting-point synthetic wax, adding ethylene glycol to react for 5-8 hours, and washing with water after the reaction is finished to obtain first modified rice bran wax;
s27, putting the low-melting-point synthetic wax and the zinc oxide in the step S25 into a third enamel reaction kettle, heating to 150-160 ℃ to melt the low-melting-point synthetic wax, adding high-molecular polyethylene glycol, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;
s28, mixing and heating the first modified rice bran wax in the step S26, the second modified rice bran wax emulsion in the step S27 and an emulsifier to melt at 110 ℃, slowly adding deionized water at 100 ℃ in a stirring state, stirring to obtain uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the modified rice bran wax emulsion in the step S2.
3. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 1, wherein: the type of the modified acrylic resin emulsion is AR-332.
4. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 1, wherein: the alcohol ether solvent is one or more of ethanol, butanol, ethylene glycol ethyl ether and ethylene glycol butyl ether.
5. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 1, wherein: the additive is one or more of a leveling agent, a hand feeling agent, a mildew preventive and essence.
6. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 2, wherein: the mass ratio of the high-acid-value synthetic wax to the methyl isopropyl ketone in the step S24 is 1: 5.
7. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 2, wherein: in the step S26, the mass ratio of the high melting point synthetic wax to the zinc oxide is 100:1, and the mass ratio of the high melting point synthetic wax to the ethylene glycol is 20: 1.
8. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 2, wherein: in step S27, the mass ratio of the low-melting synthetic wax to the zinc oxide is 100:1, the mass ratio of the low-melting synthetic wax to the high molecular polyethylene glycol is 100:3, and the molecular weight of the high molecular polyethylene glycol is 400-.
9. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 2, wherein: in the step S28, the mass ratio of the first modified rice bran wax, the second modified rice bran wax emulsion, and the emulsifier is 96:3: 1.
10. The polishing wax oil based on modified rice bran wax and the preparation method thereof according to claim 2, wherein: the type of the emulsifier in the step S28 is OP-15.
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