CN106833858A - A kind of multipurpose neutrality releasing agent and preparation method thereof - Google Patents
A kind of multipurpose neutrality releasing agent and preparation method thereof Download PDFInfo
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- CN106833858A CN106833858A CN201710044547.5A CN201710044547A CN106833858A CN 106833858 A CN106833858 A CN 106833858A CN 201710044547 A CN201710044547 A CN 201710044547A CN 106833858 A CN106833858 A CN 106833858A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
- B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
- B29C33/64—Silicone
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/36—Release agents or mold release agents
Abstract
The invention discloses a kind of multipurpose neutrality releasing agent and preparation method thereof, a kind of multipurpose neutrality releasing agent by following percentage by weight material composition：Polyethylene glycol：2.0~4.0%；Nonionic emulsifier：1.0~2.1%；Ethanol：15~30%；Dimethicone：10.0~15.0%；Soybean emulsification honey：2.0~4.0%；Nonionic surfactant：3.5~8.0%；Anion surfactant：2.5~4.5%；Complexing agent：0.1~0.5%；Water：63.9~31.9%.Have the advantages that environmental protection, stabilization, stripping result are good.
Description
Technical field
The present invention relates to be molded the demoulding, the rubber-moulding demoulding and metal casting ejection technique, more particularly to a kind of multipurpose
Neutral releasing agent and preparation method thereof.
Background technology
The products such as metal, rubber, plastics processing and forming in a mold, the product after solidification is contacted with die surface, may
Because of the microdefect such as mold working surface is concavo-convex, certain frictional resistance is had when product is peeled off from mould.Or therebetween because
Physical absorption or chemical bonding and cause to cohere, cause after product molding to be peeled off from mould difficult.In order to weaken product and mould
Absorption between tool is cohered, it is necessary to use releasing agent.The operation principle of outer spreading type releasing agent is that releasing agent is formed in die surface
One layer of smooth, fine and close film, mould is kept apart with the material processed.This layer of mold release film can well with mould
Surface bonds, and is not easily disconnected from and is destroyed, but is difficult adhesion with product, so as to mechanograph is backing out well.Therefore
Releasing agent is widely used in the various coining operations such as the injection demoulding, the rubber-moulding demoulding and the metal casting demoulding.
Releasing agent currently used in the market has following several：
1st, silicone oil type releasing agent：It is main to have silicone oil, silicones metlyl branching silicone oil, methyl-silicone oil, emulsification methyl-silicone oil, hydrogeneous first
Base silicone oil etc., generally using petroleum ether as solvent.Calcining temperature is relatively low, and mostly oiliness.
2nd, soybean lecithin class releasing agent, generally using petroleum ether as solvent, calcining temperature is relatively low, and mostly dryness,
And soybean lecithin is expensive.
3rd, with polyethylene glycol as demoulding main component, though calcining temperature is high, individually with polyethylene glycol as main de-
Mould composition, its poor lubricity, release times are few.
The deficiencies in the prior art part is, using petroleum ether as solvent, petroleum ether low boiling point, and generally at 30-80 DEG C,
Therefore petroleum ether is easy to volatilization, the easy pollution environment of petroleum ether volatilization, and petroleum ether has the shortcomings that inflammable and explosive, exists
Certain potential safety hazard.Although polyethylene glycol need not be using petroleum ether as solvent, the demoulding time after its releasing agent of spray
Number is few, is 1-2 times, and the moulding that is demolded or cast(ing) surface are coarse.
The content of the invention
The first object of the present invention is to provide a kind of multipurpose neutrality releasing agent, which solves and mainly deposit in existing releasing agent
Environmental pollution and stripping result difference problem, using water as solvent, the problem of environmental pollution is reduced, while having good
Good stripping result.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of multipurpose neutrality releasing agent, by the material composition of following percentage by weight：
Polyethylene glycol：2.0~4.0%；Nonionic emulsifier：1.0~2.1%；Ethanol：15~30%；Dimethicone：10.0
~15.0%；Soybean emulsification honey：2.0~4.0%；Nonionic surfactant：3.5~8.0%；Anion surfactant：
2.5~4.5%；Complexing agent：0.1~0.5%；Water：63.9~31.9%.
Soybean emulsification honey is main mold release component, and its main component is the stronger disaccharides and polysaccharide component of viscosity, two
Polyhydroxy and metal surface in sugar and polysaccharide have good compatibility, therefore, it is possible to adsorb one layer of die surface formation every
Exhausted layer, reduces the cohesive force of moulding and die surface.Polyethylene glycol is the polymer of ethylene glycol, and molecular formula is HOCH2
(CH2O·CH2)nCH2OH, can act as the auxiliary film forming matter of soybean emulsification honey.Its action principle is：On the one hand its molecule is long
There are many hydroxyls on chain, there is good affinity, the hydroxyl on another aspect peg molecule long-chain with soybean emulsification honey
Base has good compatibility with metal, and polyethylene glycol is polymer, entangled to each other between its molecule long-chain, easily forms film
Shape material.Therefore soybean can be emulsified sweet small molecule and be dispersed in die surface by polyethylene glycol, so that its soybean emulsifies
Honey forms uniform film in die surface, helps moulding preferably to be separated with mould.There are two or more in complexing agent
Coordination atom, can form chelate ring, because the ring formation of complexing agent makes complexing with a central atom (or ion) simultaneously
The stability of the thing non-chelated complex more close than the Nomenclature Composition and Structure of Complexes is high, therefore complexing agent is added in releasing agent, complexing
Coordination atom in agent can be with a small amount of Ca in water2+、Mg2+Complexing, prevents Ca2+、Mg2+Combined with emulsifying agent and destroyed emulsification
Agent, is conducive to improving the stability of emulsion of releasing agent.In actual use, requirement during this releasing agent of dilute with water to water quality is not
It is very high, with general soft water, not necessarily uses deionized water.
More preferably：The molecular weight of polyethylene glycol is 800-1000.
As seen from the experiment, molecular weight polyethylene glycol is too big, and its molecule segment is more long, in ethanol needed for full extension
The time wanted is longer, therefore, it is difficult to dissolve.If molecular weight is too small, filming performance is poor.
More preferably：Nonionic emulsifier includes tween emulsifier type, spans emulsifying agent and lauroyl monoethanol
At least one in amine APEO.
As seen from the experiment, lauroyl monoethanolamine APEO is emulsified compared to tween emulsifier type and spans
Agent has more preferable solubilization-aid effect.
More preferably：The viscosity of dimethicone is 201-600cs.
As seen from the experiment, if dimethicone viscosity is too high, oil stain can be left on moulding surface, influences moulding
Performance.If dimethicone viscosity is too low, demolding performace is poor, and moulding is easily and die bonds.
More preferably：Soybean emulsification honey is that a kind of water-soluble polysaccharides in soybean refining grease extract accessory substance.
Soybean emulsification honey is a kind of byproduct after soybean oil refining, main component be sticky stronger disaccharides with polysaccharide into
Point, one of main component of the demoulding is made here.Its cost is 1/10th of soybean lecithin, but stripping result is quite,
With good economic benefit.
More preferably：Nonionic surfactant is Tweens surfactant, spans surfactant and the moon
At least one in the acyl MEA APEO of osmanthus.
Due to having the more polyoxyethylene groups of hydrophilic radical one in this few class nonionic surfactant molecule, thus it is hydrophilic
Property it is strong, its Main Function is the dissolving and dispersion for making polyethylene glycol, dimethicone, soybean emulsification honey in water.
More preferably：Anion surfactant is in neopelex, dodecyl sodium sulfate
Plant or two kinds.
Its Main Function is the dissolving and emulsification for making polyethylene glycol, dimethicone, soybean emulsification honey in water.
More preferably：Complexing agent is aminocarboxylate.
The hydroxyl oxygen atom on multiple N atoms and multiple carboxyls on aminocarboxylate, can provide lone pair electrons, can
To enter the unoccupied orbital of central atom, so as to form complex (complexing), its complexing power is strong.Can be therewith after itself and metal complex
The five-membered ring chelate of stabilization is formed, stability constant is high.
More preferably：Raw material including following weight portion：
Polyethylene glycol：3.0%；Lauroyl monoethanolamine APEO (nonionic emulsifier)：1.5%；Ethanol：20.0%；
Dimethicone：12.5%；Soybean emulsification honey：3.0%；Lauroyl monoethanolamine APEO (non-ionic surface active
Agent)：6.0%；Neopelex：3.5%；Disodium EDTA：0.4%；Water：50.1%.
As seen from the experiment, the releasing agent that prepared by the formula has good stability of emulsion, and its outward appearance is milky
Uniform liquid, and be centrifuged without layering, it is diluted with water also without precipitation, and it is uniform in die surface film forming.Prepared according to the formula
Releasing agent in mould surface spraying once, can the demoulding 7 times, with excellent stripping result.
The second object of the present invention is to provide a kind of preparation method of multipurpose neutrality releasing agent.
Above-mentioned technical purpose of the invention is achieved by the following scheme：
A kind of preparation method of multipurpose neutrality releasing agent, comprises the following steps：S1：The polyethylene glycol of formula ratio is weighed, is added
The ethanol of formula ratio, stirs, and the nonionic emulsifier for adding formula ratio stirs as component A；S2：Weigh formula
The dimethicone of amount, adds the soybean emulsification honey stirring of formula ratio, adds the nonionic surfactant stirring of formula ratio
Uniformly as component B；S3：The water of formula ratio is weighed, the anion surfactant and complexing agent stirring and dissolving of formula ratio is added
Uniformly as component C；S4：During component A, component B are added into component C under the stirring of 2500-4000rpm rotating speeds, in 78-84 DEG C of temperature
The lower stirring 45-90min of degree, obtains milky white color substance and is a kind of multipurpose neutrality releasing agent.
In sum, the invention has the advantages that：
1st, using soybean emulsification honey as main mold release component, its solvent is water to the application, with traditional silicone oil type releasing agent
Compared as solvent using petroleum ether with soybean lecithin class releasing agent, environmental pollution pollution is reduced, also in the absence of petroleum ether
Potential safety hazard, there is environmental protection；
2nd, using soybean emulsification honey as main mold release component, soybean emulsification honey is water-soluble for the one kind in soybean refining grease
Polysaccharide extracts accessory substance, and compared with soybean lecithin, its stripping result is suitable but price is relatively low, with cost advantage, thus
With good economic benefit；
3rd, the releasing agent water of the application is used as solvent, and with the addition of complexing agent wherein, and the coordination atom on complexing agent can
With a small amount of Ca in water2+、Mg2+Complexing, prevents Ca2+、Mg2+Combined with emulsifying agent and destroyed emulsifying agent, be conducive to improving releasing agent
Stability of emulsion；In actual use, requirement during this releasing agent of dilute with water to water quality is not very high, is with general soft water
Can, not necessarily use deionized water；
4th, the releasing agent of the application has good stability of emulsion, and its outward appearance is milky uniform liquid, and centrifugation is without layering,
It is diluted with water also without precipitation, and it is uniform in die surface film forming；Releasing agent prepared by the formula according to the application is in mould table
Face sprays once, is capable of the number of times of the demoulding between 4-7 times, with excellent stripping result.
Specific embodiment
The present invention is described in further detail below.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the protection domain of invention.
Embodiment 1-3：A kind of multipurpose neutrality releasing agent, composition and formula as shown in Table 1, are prepared using following technique
Obtain：
S1：The polyethylene glycol of formula ratio is weighed, the ethanol of formula ratio is added, stirred, add the nonionic Emulsion of formula ratio
Agent is stirred to dissolving as component A；
S2：The dimethicone of formula ratio is weighed, the soybean emulsification honey stirring of formula ratio is added, the nonionic of formula ratio is added
Surfactant stirs as component B；
S3：The water of formula ratio is weighed, adds the anion surfactant and complexing agent stirring and dissolving of formula ratio uniform as group
Divide C；
S4：Component A, component B are slowly added in component C under the high-speed stirred of 2800rpm, are stirred at a temperature of 78-84 DEG C
60min, obtains milky white color substance and is a kind of multipurpose neutrality releasing agent；
Wherein, the molecular weight of polyethylene glycol is 1000, and nonionic emulsifier is lauroyl monoethanolamine APEO, and ethanol is
95% ethanol, the viscosity of dimethicone is 500cs, and soybean emulsification honey is a kind of water-soluble polysaccharides in soybean refining grease
Accessory substance is extracted, nonionic surfactant is lauroyl monoethanolamine APEO, and anion surfactant is 12
Sodium alkyl benzene sulfonate, complexing agent is disodium EDTA, and water is deionized water.
Table one：The component and content table of embodiment 1-3
Embodiment 4：Difference with embodiment 2 is that the molecular weight of polyethylene glycol is 800.
Comparative example 1：Difference with embodiment 2 is that the molecular weight of polyethylene glycol is 600.
Comparative example 2：Difference with embodiment 2 is that the molecular weight of polyethylene glycol is 1200.
Comparative example 3：Difference with embodiment 2 is that the molecular weight of polyethylene glycol is 3000.
Embodiment 5：Difference with embodiment 2 is that nonionic emulsifier is polyoxyethylene sorbitan Dan Yue
Cinnamic acid ester (Tween-20).
Embodiment 6：Difference with embodiment 2 is that nonionic emulsifier is anhydrous sorbitol laurate (department
Disk -20).
Embodiment 7：Difference with embodiment 2 is that nonionic emulsifier is stearic polyoxyethylene sorbitol acid anhydride list
The compound of acid esters (Tween-60) and anhydrous sorbitol laurate (Arlacel-20), both mass ratioes are 1:1.
Embodiment 8：Difference with embodiment 2 is that the viscosity of dimethicone is 210cs.
Embodiment 9：Difference with embodiment 2 is that the viscosity of dimethicone is 600cs.
Comparative example 4：Difference with embodiment 2 is that the viscosity of dimethicone is 100cs.
Comparative example 5：Difference with embodiment 2 is that the viscosity of dimethicone is 1000cs.
Embodiment 10：Difference with embodiment 2 is that nonionic emulsifier is polyoxyethylene sorbitan Dan Yue
Cinnamic acid ester (Tween-20).
Embodiment 11：Difference with embodiment 2 is that nonionic emulsifier is anhydrous sorbitol laurate (department
Disk -20).
Embodiment 12：Difference with embodiment 2 is that nonionic emulsifier is stearic polyoxyethylene sorbitol acid anhydride list
The compound of acid esters (Tween-60) and anhydrous sorbitol laurate (Arlacel-20), both mass ratioes are 1:1.
Embodiment 13：Difference with embodiment 2 is that anion surfactant is dodecyl sodium sulfate.
Embodiment 14：Difference with embodiment 2 is that complexing agent is sodium ammonium triacetate.
Embodiment 15：Difference with embodiment 2 is that complexing agent is tetrasodium salt of EDTA.
Embodiment 16：Prepared using following technique：
S1：The polyethylene glycol of formula ratio is weighed, the ethanol of formula ratio is added, stirred, add the nonionic Emulsion of formula ratio
Agent stirs as component A；
S2：The dimethicone of formula ratio is weighed, the soybean emulsification honey stirring of formula ratio is added, the nonionic of formula ratio is added
Surfactant stirs as component B；
S3：The water of formula ratio is weighed, adds the anion surfactant and complexing agent stirring and dissolving of formula ratio uniform as group
Divide C；
S4：Component A, component B are slowly added in component C under the high-speed stirred of 4000rpm, are stirred at a temperature of 78-84 DEG C
45min, obtains milky white color substance and is a kind of multipurpose neutrality releasing agent；
Wherein, the molecular weight of polyethylene glycol is 1000, and nonionic emulsifier is lauroyl monoethanolamine APEO, and ethanol is
95% ethanol, the viscosity of dimethicone is 500cs, and soybean emulsification honey is a kind of water-soluble polysaccharides in soybean refining grease
Accessory substance is extracted, nonionic surfactant is lauroyl monoethanolamine APEO, and anion surfactant is 12
Sodium alkyl benzene sulfonate, complexing agent is disodium EDTA, and water is deionized water.
Embodiment 17：Difference with embodiment 2 is that water used is common soft water, the calcium salt in common soft water
It is 40-50 mg/litres with magnesium salts content.
Comparative example 6：Difference with embodiment 2 is to replace deionized water and complexing agent with common soft water, common soft
Calcium salt and magnesium salts content in water are 40-50 mg/litres.
Comparative example 7：Certain commercially available brand soybean lecithin class releasing agent is selected at random.
Comparative example 8：Certain commercially available brand polyethylene glycol releasing agent is selected immediately.
Milky white color substance such as embodiment 1-17 is exactly a kind of multipurpose neutrality releasing agent finished product, is diluted with water to when using
3~5%, such as temperature is higher, can add a small amount of bactericide, and releasing agent referred to as in bulk can be sprayed on mould with spray gun (using air compressor machine)
Surface；Also can carry out canned, 100g releasing agent stostes are fitted into inhalator jar, load onto valve, be compacted with pressure mouth machine, from valve port pressure
Enter gas of dimethyl ether 150g and make propellant, just can obtain the multipurpose neutrality releasing agent finished product that can be carried with, spray automatically.
The physicochemical property method of testing of releasing agent is as described below.
Dissolubility：Refer to solute effect of the polyethylene glycol in nonionic emulsifier, observation of steps S1 in process of production
Middle polyethylene glycol is completely dissolved the required time in ethanol.
Outward appearance：Visually to determine, the sample for taking about 50ml embodiments 1-17 and comparative example 1-6 pours into cleaning, dry, colourless
In transparent 100ml beakers, observed under natural light disposed within.
Dewatering ability is determined：The sample for taking about 50ml embodiments 1-17 and comparative example 1-6 pours into cleaning, dry 50ml
In centrifuge tube, it is placed in a centrifuge after 3000r/min is centrifuged 20 minutes and observes.
Precipitation status：The sample for taking about 5ml embodiments 1-17 and comparative example 1-6 pours into cleaning, drying, water white transparency
100ml beakers, plus common soft water is diluted to 100ml, is observed under natural light disposed within.
Film forming is tested：The sample of Example 1-17 and comparative example 1-6 adds deionized water to be diluted to 5%, is sprayed with spray gun
Its film forming is observed in die surface.
The physicochemical property test result of releasing agent is referring to table two.
Table two：The physicochemical property test result of releasing agent
The result of comparative example 2, embodiment 4 and comparative example 1-3 understands, with the increasing of the molecular weight of polyethylene glycol
Greatly, polyethylene glycol solubility property in ethanol constantly weakens.When the molecular weight of polyethylene glycol is increased to after 1200, even if
Can be well mixed by extending mixing time in component A, the emulsion obtained in follow-up preparation is also uneven, and from
There is layering in heart experiment, illustrate that the solute effect of polyethylene glycol is bad.When the molecular weight of polyethylene glycol is increased to after 3000,
Still it is difficult to be completely dissolved after polyethylene glycol stirring 30min.If the molecular weight of polyethylene glycol is too small, will be sprayed after demoulding dilution agent
To die surface, its filming performance is poor, it is impossible to form the film of stable and uniform.
The result of comparative example 2 and embodiment 5-7 understands, with Tween-20, Arlacel-20 or Tween-60 and sapn-
20 combination is compared, and using lauroyl monoethanolamine APEO as emulsifying agent, can preferably help polyethylene glycol to dissolve,
Be conducive to shortening polyethylene glycol dissolution time in ethanol.
The result of comparative example 2, embodiment 8-9 and comparative example 4-5 understands that the viscosity of dimethicone is in 201-
Between 600, the releasing agent for obtaining is respectively provided with good physicochemical property, appearance uniform and centrifugation is without layering, adds water without precipitation.When two
During methyl-silicone oil viscosity larger (1000cs), although the releasing agent for preparing is milky uniform liquid, its centrifugation
Occur layering, the situation of floating oil afterwards, illustrate that the demoulding agent emulsion for preparing is unstable.
The result of comparative example 2 and embodiment 10-12 understands, Tween-20, Arlacel-20 or Tween-60 and sapn-
20 combination and lauroyl monoethanolamine APEO are respectively provided with good emulsification and solubilization-aid effect.
The result of comparative example 2 and embodiment 13 understands that the releasing agent for preparing is milky uniform liquid, but
The phenomenon of a small amount of layering occur after its centrifugation, show neopelex than dodecyl sodium sulfate to polyethylene glycol,
Dimethicone and soybean emulsification honey have preferably dissolving and emulsifying effectiveness.
Comparative example 2, embodiment 14-15, embodiment 17, the result of comparative example 6 understand that the releasing agent for preparing is equal
It is milky uniform liquid, and centrifugation shows amino carboxylic acid salt complexing agent to common soft water without being layered, being diluted with water without precipitation
In ion there is good complexing effect, so as to improve releasing agent emulsion intercalation method, reduce the possibility of its demulsification.
The demoulding is tested
Example 1-17 and comparative example 4, the sample of comparative example 5 add deionized water to be diluted to 5% and comparative example 7 and right
Ratio 8 is test sample, and demoulding experiment is carried out to moulding, and the moulding surface state and spraying that record is sprayed first once can
There is coarse or moulding and are difficult to from mould first with moulding surface in the maximum release times for enough carrying out, maximum release times
It is preceding once to count that surface departs from.Result of the test is as shown in Table 3.
Table three：Demoulding result of the test
Embodiment 2, embodiment 8, embodiment 9 and comparative example 4, the comparison of test results of comparative example 5 are understood, dimethyl-silicon
The increase of oily viscosity is conducive to improving the release times of moulding and mould, if dimethicone viscosity is too low, demolding performace
Difference；If viscosity is too high, oil stain can be left on moulding surface, influence the performance of moulding.
Embodiments herein 1-17 is respectively provided with the good release property suitable with commercially available soybean lecithin type releasing agent
Can, and compared with commercially available pure polyethylene glycol releasing agent, hence it is evident that with more preferable stripping result.
Claims (10)
1. a kind of multipurpose neutrality releasing agent, it is characterized in that, by the material composition of following percentage by weight：
Polyethylene glycol：2.0~4.0%；
Nonionic emulsifier：1.0~2.1%；
Ethanol：15~30%；
Dimethicone：10.0~15.0%；
Soybean emulsification honey：2.0~4.0%；
Nonionic surfactant：3.5~8.0%；
Anion surfactant：2.5~4.5%；
Complexing agent：0.1~0.5%；
Water：63.9~31.9%.
2. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The molecular weight of the polyethylene glycol is
800-1000。
3. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The nonionic emulsifier includes telling
At least one in warm class emulsifying agent, spans emulsifying agent and lauroyl monoethanolamine APEO.
4. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The viscosity of the dimethicone is
201-600cs。
5. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The soybean emulsification honey is soybean refining
A kind of water-soluble polysaccharides in liquefaction fat extract accessory substance.
6. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The nonionic surfactant is
At least one in Tweens surfactant, spans surfactant and lauroyl monoethanolamine APEO.
7. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The anion surfactant is
One or two in neopelex, dodecyl sodium sulfate.
8. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that：The complexing agent is amino carboxylic acid
Salt.
9. a kind of multipurpose neutrality releasing agent according to claim 1, it is characterized in that, including following weight portion raw material：
Polyethylene glycol：3.0%；
Lauroyl monoethanolamine APEO（Emulsifying agent）：1.5%；
Ethanol：20.0%；
Dimethicone：12.5%；
Soybean emulsification honey：3.0%；
Lauroyl monoethanolamine APEO（Surfactant）：6.0%；
Neopelex：3.5%；
Disodium EDTA：0.4%；
Water：50.1%.
10. the preparation method of a kind of multipurpose neutrality releasing agent, it is characterized in that, comprise the following steps：
S1：The polyethylene glycol of formula ratio is weighed, the ethanol of formula ratio is added, stirred, add the nonionic Emulsion of formula ratio
Agent stirs as component A；
S2：The dimethicone of formula ratio is weighed, the soybean emulsification honey stirring of formula ratio is added, the nonionic of formula ratio is added
Surfactant stirs as component B；
S3：The water of formula ratio is weighed, adds the anion surfactant and complexing agent stirring and dissolving of formula ratio uniform as group
Divide C；
S4：During component A, component B are added into component C under the stirring of 2500-4000rpm rotating speeds, stirred at a temperature of 78-84 DEG C
45-90min, obtains milky white color substance and is a kind of multipurpose neutrality releasing agent.
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