CN110327799B - Water-based erucamide emulsion and preparation method thereof - Google Patents
Water-based erucamide emulsion and preparation method thereof Download PDFInfo
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
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- B01F23/48—Mixing liquids with liquids; Emulsifying characterised by the nature of the liquids
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- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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Abstract
The invention relates to the technical field of erucamide emulsion preparation, and particularly discloses a water-based erucamide emulsion and a preparation method thereof. The aqueous erucamide emulsion comprises the following components in parts by weight: 35-45 parts of erucamide; 8-12 parts of a novel emulsifier; 1-2 parts of a defoaming agent; 0.1-1 part of preservative; 50-80 parts of deionized water. The aqueous erucamide emulsion has simple production process and good dispersion effect, and can be stored for a long time.
Description
Technical Field
The invention relates to the technical field of erucamide emulsion preparation, and particularly relates to a water-based erucamide emulsion and a preparation method thereof.
Background
Erucamide, also known as cis-13-docosenoic acid amide; is an excellent fine chemical product with wide application range. Because of its higher melting point and good thermal stability, it is commonly used as an anti-sticking agent and a slip agent for various plastics and resins, and an excellent lubricant and an antistatic agent for extruded films.
Because erucamide is insoluble in water, an emulsifier, a dispersant, a solubilizer and an anti-settling agent are usually added in the process of preparing the aqueous erucamide emulsion to achieve the dispersing and anti-settling effects. And because of the lack of the emulsifier special for erucamide, the existing water-based erucamide emulsion has poor dispersion effect even if the emulsifier, the dispersant and the anti-settling agent are added, is easy to settle, and can generate flocculation and delamination after being placed for a long time. In addition, the existing method needs to stir and grind at high speed under the heating condition in the process of preparing the water-based erucamide emulsion, and has complex production process and high production cost.
Therefore, the development of the water-based erucamide emulsion which has good dispersion effect, can be stored for a long time, has simple production process and low production cost and has wide market prospect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water-based erucamide emulsion and a preparation method thereof. The aqueous erucamide emulsion has simple production process and good dispersion effect, and can be stored for a long time.
The technical problem to be solved by the invention is realized by the following technical scheme:
an aqueous erucamide emulsion comprises the following components in parts by weight: 35-45 parts of erucamide; 8-12 parts of a novel emulsifier; 1-2 parts of a defoaming agent; 0.1-1 part of preservative; 50-80 parts of deionized water.
Preferably, the aqueous erucamide emulsion comprises the following components in parts by weight: 40-45 parts of erucamide; 10-12 parts of a novel emulsifier; 1-2 parts of a defoaming agent; 0.1-1 part of preservative; 50-60 parts of deionized water.
Most preferably, the aqueous erucamide emulsion comprises the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
Preferably, the defoaming agent is polyoxyethylene polyoxypropylene ether.
Preferably, the preservative is selected from cason.
Preferably, the novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 3-6 h, and separating a product to obtain conjugated cottonseed oil;
(2) adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting for 3-5 h at 200-250 ℃ to obtain maleic anhydride modified conjugated cottonseed oil;
(3) adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; and reacting for 5-8 h at 230-260 ℃, and cooling to obtain the emulsifier.
Further preferably, the volume dosage of the ethylene glycol in the step (1) is 5-10 times of that of the cottonseed oil; the weight of the sodium hydroxide is 20-30% of the weight of the cottonseed oil.
Most preferably, the volume dosage of the ethylene glycol in the step (1) is 8 times of the volume dosage of the cottonseed oil; the weight of the sodium hydroxide is 25 percent of the weight of the cottonseed oil.
Further preferably, the weight ratio of the conjugated cottonseed oil to the maleic anhydride in the step (2) is 2-3: 1.
Most preferably, the weight ratio of conjugated cottonseed oil to maleic anhydride in step (2) is 2.5: 1.
Further preferably, the weight ratio of the maleic anhydride modified conjugated cottonseed oil, the deionized water and the sorbitan in the step (3) is 1: 0.5-1.5: 1-3; the catalyst is zinc acetate, and the weight amount of the zinc acetate is 3-5% of the weight of the maleic anhydride modified conjugated cottonseed oil.
Most preferably, the weight ratio of the maleic anhydride modified conjugated cottonseed oil, the deionized water and the sorbitan in the step (3) is 1: 1: 2; the catalyst is zinc acetate, and the weight of the zinc acetate is 4% of that of the maleic anhydride modified conjugated cottonseed oil.
The invention also provides a preparation method of the water-based erucamide emulsion, which comprises the following steps:
the method comprises the steps of firstly adding erucamide and a novel emulsifier into deionized water, stirring for 30-60 min, then adding a defoaming agent and a preservative, and stirring for 20-40 min to obtain the water-based erucamide emulsion.
Has the advantages that: the emulsifier which is obtained by brand new preparation is used in the process of preparing the water-based erucamide emulsion, the dispersing ability of the emulsifier to erucamide is strong, and the erucamide can be easily dispersed in water, so that the heating and high-speed stirring conditions are not needed in the process of preparing the water-based erucamide emulsion, and the stirring can be carried out under the conventional conditions to achieve a good dispersing effect, thereby greatly simplifying the production process and saving the production cost; in addition, the emulsifier prepared in a brand new way has the emulsifying function, the dispersing function and the anti-settling function, has the effects of the emulsifier, the dispersant and the anti-settling agent used in the traditional water-based erucamide emulsion, and does not need to additionally add the dispersant and the anti-settling agent in the process of preparing the water-based erucamide emulsion; in addition, the water-based erucamide emulsion prepared by the emulsifier can ensure that the emulsion can be stored for a long time without flocculation and delamination.
Detailed Description
The present invention is further explained below with reference to specific examples, which are not intended to limit the present invention in any way.
EXAMPLE 1 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 5h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 8 times of that of the cottonseed oil; the weight of the sodium hydroxide is 25 percent of the weight of the cottonseed oil.
(2) Adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting at 230 ℃ for 4h to obtain maleic anhydride modified conjugated cottonseed oil; the weight ratio of the conjugated cottonseed oil to the maleic anhydride in the step (2) is 2.5: 1.
(3) Adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; reacting for 6 hours at 250 ℃, and cooling to obtain the emulsifier; the weight ratio of the maleic anhydride modified conjugated cottonseed oil to the deionized water to the sorbitan is 1: 1: 2; the catalyst is zinc acetate, and the weight of the zinc acetate is 4% of that of the maleic anhydride modified conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
The water erucamide emulsion prepared in the embodiment is placed under the condition of 20000r/min for centrifugation for 30min, and no layering phenomenon is found; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and flocculation and layering phenomena do not occur.
EXAMPLE 2 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 35 parts of erucamide; 8 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 65 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 4h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 10 times of that of the cottonseed oil; the weight of the sodium hydroxide is 30 percent of the weight of the cottonseed oil.
(2) Adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting at 200 ℃ for 6h to obtain maleic anhydride modified conjugated cottonseed oil; the weight ratio of the conjugated cottonseed oil to the maleic anhydride in the step (2) is 2: 1.
(3) Adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; reacting for 8 hours at 240 ℃, and cooling to obtain the emulsifier; the weight ratio of the maleic anhydride modified conjugated cottonseed oil to the deionized water to the sorbitan is 1: 1: 3; the catalyst is zinc acetate, and the weight amount of the zinc acetate is 3% of the weight of the maleic anhydride modified conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 3000 r/min.
The water erucamide emulsion prepared in the embodiment is placed under the condition of 20000r/min for centrifugation for 30min, and no layering phenomenon is found; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and flocculation and layering phenomena do not occur.
EXAMPLE 3 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 45 parts of erucamide; 12 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; and 55 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 6h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 5 times of that of the cottonseed oil; the weight of the sodium hydroxide is 20% of the weight of the cottonseed oil.
(2) Adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting at 250 ℃ for 4h to obtain maleic anhydride modified conjugated cottonseed oil; the weight ratio of the conjugated cottonseed oil to the maleic anhydride in the step (2) is 3: 1.
(3) Adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; reacting for 5 hours at 260 ℃, and cooling to obtain the emulsifier; the weight ratio of the maleic anhydride modified conjugated cottonseed oil to the deionized water to the sorbitan is 1: 1.5: 2; the catalyst is zinc acetate, and the weight of the zinc acetate is 5% of that of the maleic anhydride modified conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
The water erucamide emulsion prepared in the embodiment is placed under the condition of 20000r/min for centrifugation for 30min, and no layering phenomenon is found; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and flocculation and layering phenomena do not occur.
Comparative example 1 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong. The emulsifier is sodium dodecyl benzene sulfonate.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and an emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
Comparative example 1 differs from example 1 in that comparative example 1 employs the conventional emulsifier sodium dodecylbenzene sulfonate; while example 1 uses a novel emulsifier.
The aqueous erucamide emulsion prepared by the comparative example is placed under the condition of 20000r/min for centrifugation for 30min, and the delamination phenomenon is serious; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and obvious flocculation and layering phenomena occur. This shows that the novel emulsifier prepared by the invention has more remarkable emulsification dispersion and anti-settling effects on erucamide than the conventional emulsifier.
Comparative example 2 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong. The emulsifier is polyoxyethylene lauryl ether.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and an emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
Comparative example 2 differs from example 1 in that comparative example 2 employs the conventional emulsifier laureth; while example 1 uses a novel emulsifier.
The aqueous erucamide emulsion prepared by the comparative example is placed under the condition of 20000r/min for centrifugation for 30min, and the delamination phenomenon is serious; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and obvious flocculation and layering phenomena occur. This shows that the novel emulsifier prepared by the invention has more remarkable emulsification dispersion and anti-settling effects on erucamide than the conventional emulsifier.
Comparative example 3 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 5h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 8 times of that of the cottonseed oil; the weight of the sodium hydroxide is 25 percent of the weight of the cottonseed oil.
(2) Adding deionized water into the conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; reacting for 6 hours at 250 ℃, and cooling to obtain the emulsifier; the weight ratio of the conjugated cottonseed oil to the deionized water to the sorbitan is 1: 1: 2; the catalyst is zinc acetate, and the weight of the zinc acetate is 4% of the weight of the conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
Comparative example 3 differs from example 1 in that the conjugated cottonseed oil was not modified by maleic anhydride addition reaction with a diene, but was reacted directly with sorbitan during the preparation of the novel emulsifier.
The aqueous erucamide emulsion prepared by the comparative example is placed under the condition of 20000r/min for centrifugation for 30min, and the delamination phenomenon is serious; the water-based erucamide emulsion is placed for 3 months at the temperature of 20-35 ℃, and obvious flocculation and layering phenomena occur. This shows that the conjugated cottonseed oil must be modified by addition of diene with maleic anhydride and then reacted with sorbitan to obtain the novel emulsifier which has excellent emulsifying, dispersing and anti-settling effects on erucamide. The conjugated cottonseed oil and the sorbitan are directly reacted without addition modification of diene by maleic anhydride to obtain the emulsifier which has excellent emulsification dispersion and anti-settling effects on erucamide.
Comparative example 4 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 5h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 8 times of that of the cottonseed oil; the weight of the sodium hydroxide is 25 percent of the weight of the cottonseed oil.
(2) Adding conjugated cottonseed oil and acrylic acid into a reaction kettle, and reacting for 4 hours at 230 ℃ to obtain acrylic acid modified conjugated cottonseed oil; the weight ratio of the conjugated cottonseed oil to the acrylic acid in the step (2) is 2.5: 1.
(3) Adding deionized water into acrylic acid modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; reacting for 6 hours at 250 ℃, and cooling to obtain the emulsifier; the weight ratio of the acrylic acid modified conjugated cottonseed oil to the deionized water to the sorbitan is 1: 1: 2; the catalyst is zinc acetate, and the weight amount of the zinc acetate is 4% of the weight of the acrylic acid modified conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
The difference between the comparative example 4 and the example 1 is that in the preparation process of the novel emulsifier, the conjugated cottonseed oil described in the comparative example 4 is modified by the diene addition reaction of acrylic acid to obtain acrylic acid modified conjugated cottonseed oil, and then the acrylic acid modified conjugated cottonseed oil is reacted with sorbitan; in example 1, maleic anhydride was used to modify the conjugated cottonseed oil by diene addition reaction, and then reacted with sorbitan.
The aqueous erucamide emulsion prepared by the comparative example is placed under the condition of 20000r/min for centrifugation for 30min, and the phenomenon of layering occurs; the water-based erucamide emulsion is placed at the temperature of 20-35 ℃ for 3 months, and flocculation and delamination phenomena begin to occur. This shows that the conjugated cottonseed oil must be modified by addition of diene with maleic anhydride and then reacted with sorbitan to obtain the novel emulsifier which has excellent emulsifying, dispersing and anti-settling effects on erucamide. And the non-maleic anhydride is used for diene addition modification, so that the emulsifier with excellent emulsification dispersion and anti-settling effects on erucamide cannot be obtained.
Comparative example 5 preparation of aqueous erucamide emulsion
The raw materials comprise the following components in parts by weight: 40 parts of erucamide; 10 parts of a novel emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
The defoaming agent is polyoxyethylene polyoxypropylene ether; the preservative is selected from the kasong.
The novel emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 5h, and separating the product to obtain conjugated cottonseed oil; the volume dosage of the ethylene glycol is 8 times of that of the cottonseed oil; the weight of the sodium hydroxide is 25 percent of the weight of the cottonseed oil.
(2) Adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting at 230 ℃ for 4h to obtain maleic anhydride modified conjugated cottonseed oil; the weight ratio of the conjugated cottonseed oil to the maleic anhydride in the step (2) is 2.5: 1.
(3) Adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding lauryl alcohol, and then adding a catalyst; reacting for 6 hours at 250 ℃, and cooling to obtain the emulsifier; the weight ratio of the maleic anhydride modified conjugated cottonseed oil to the deionized water to the lauryl alcohol is 1: 1: 2; the catalyst is zinc acetate, and the weight of the zinc acetate is 4% of that of the maleic anhydride modified conjugated cottonseed oil.
The preparation method of the water-based erucamide emulsion comprises the following steps: firstly, adding erucamide and a novel emulsifier into deionized water, stirring for 40min, then adding a defoaming agent and a preservative, and stirring for 30min to obtain the water-based erucamide emulsion; the stirring speed is 2000 r/min.
The difference between the comparative example 5 and the example 1 is that in the preparation process of the novel emulsifier, the novel emulsifier is prepared by reacting maleic anhydride modified conjugated cottonseed oil with lauryl alcohol in the comparative example 5; and example 1 adopts maleic anhydride modified conjugated cottonseed oil to react with sorbitan to prepare the novel emulsifier.
The aqueous erucamide emulsion prepared by the comparative example is placed under the condition of 20000r/min for centrifugation for 30min, and the phenomenon of layering occurs; the water-based erucamide emulsion is placed at the temperature of 20-35 ℃ for 3 months, and flocculation and delamination phenomena begin to occur. This shows that the novel emulsifier prepared by reacting the maleic anhydride modified conjugated cottonseed oil with sorbitan has excellent emulsifying, dispersing and anti-settling effects on erucamide. The maleic anhydride modified conjugated cottonseed oil can not react with other alcohols to obtain the emulsifier which has excellent emulsification dispersion and anti-settling effects on erucamide.
Claims (9)
1. The aqueous erucamide emulsion is characterized by comprising the following components in parts by weight: 35-45 parts of erucamide; 8-12 parts of an emulsifier; 1-2 parts of a defoaming agent; 0.1-1 part of preservative; 50-80 parts of deionized water;
the emulsifier is prepared by the following method:
(1) dissolving cottonseed oil in ethylene glycol, adding sodium hydroxide, carrying out heating reflux reaction for 3-6 h, and separating a product to obtain conjugated cottonseed oil;
(2) adding conjugated cottonseed oil and maleic anhydride into a reaction kettle, and reacting for 3-5 h at 200-250 ℃ to obtain maleic anhydride modified conjugated cottonseed oil;
(3) adding deionized water into maleic anhydride modified conjugated cottonseed oil, then adding sorbitan and then adding a catalyst; and reacting for 5-8 h at 230-260 ℃, and cooling to obtain the emulsifier.
2. The aqueous erucamide emulsion of claim 1 comprising the following components in parts by weight: 40-45 parts of erucamide; 10-12 parts of an emulsifier; 1-2 parts of a defoaming agent; 0.1-1 part of preservative; 50-60 parts of deionized water.
3. The aqueous erucamide emulsion of claim 1 comprising the following components in parts by weight: 40 parts of erucamide; 10 parts of an emulsifier; 1 part of a defoaming agent; 0.5 part of preservative; 60 parts of deionized water.
4. The aqueous erucamide emulsion of claim 1 wherein said defoamer is polyoxyethylene polyoxypropylene ether.
5. The aqueous erucamide emulsion of claim 1 wherein said preservative is selected from the group consisting of Carpesos.
6. The aqueous erucamide emulsion according to claim 1 wherein the volume usage of the ethylene glycol in step (1) is 5 to 10 times the volume usage of the cotton seed oil; the weight of the sodium hydroxide is 20-30% of the weight of the cottonseed oil.
7. The aqueous erucamide emulsion according to claim 1 wherein the weight ratio of conjugated cottonseed oil to maleic anhydride in step (2) is 2-3: 1.
8. The aqueous erucamide emulsion according to claim 1 wherein the weight ratio of the maleic anhydride modified conjugated cottonseed oil, deionized water and sorbitan in step (3) is 1: 0.5-1.5: 1-3; the catalyst is zinc acetate, and the weight amount of the zinc acetate is 3-5% of the weight of the maleic anhydride modified conjugated cottonseed oil.
9. The method for preparing the aqueous erucamide emulsion according to any one of claims 1 to 8, comprising the steps of: the method comprises the steps of firstly adding erucamide and an emulsifier into deionized water, stirring for 30-60 min, then adding a defoaming agent and a preservative, and stirring for 20-40 min to obtain the water-based erucamide emulsion.
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| FR2850663B1 (en) * | 2003-01-31 | 2007-04-20 | Cray Valley Sa | AQUEOUS DISPERSION OF ALKYD RESIN TREATED WITH OXIDIZING AGENT, WITH IMPROVED DRYING |
| WO2009003960A1 (en) * | 2007-06-29 | 2009-01-08 | Nestec S.A. | Stable double emulsions |
| FR2918268A1 (en) * | 2007-07-05 | 2009-01-09 | Oreal | COSMETIC OR PHARMACEUTICAL COMPOSITION COMPRISING A POLYCONDENSATE, COSMETIC PROCESSING METHOD EMPLOYING SAID COMPOSITION, POLYCONDENSATE AND PREPARATION METHOD |
| FR2921831B1 (en) * | 2007-10-05 | 2014-05-09 | Oreal | COSMETIC OR DERMATOLOGICAL COMPOSITION COMPRISING A POLYMER CONTAINING JUNCTION GROUPS, AND COSMETIC PROCESSING METHOD |
| PL3434711T3 (en) * | 2016-03-22 | 2021-12-20 | Toyo Ink Sc Holdings Co., Ltd. | Rosin-modified resin and method for producing same, varnish for active energy ray-curable lithographic ink, active energy ray-curable lithographic ink, and printed product |
| CN107642000A (en) * | 2017-11-09 | 2018-01-30 | 新沂市星辰新材料科技有限公司 | A kind of environment-friendly type aqueous zinc stearate dispersion liquid and its preparation technology |
| CN107936680B (en) * | 2017-12-01 | 2021-05-07 | 杨福敬 | Water-based erucamide emulsion and preparation method thereof |
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