CN108727611B - A method of emulsification dioctyl sebacate - Google Patents
A method of emulsification dioctyl sebacate Download PDFInfo
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- CN108727611B CN108727611B CN201810683950.7A CN201810683950A CN108727611B CN 108727611 B CN108727611 B CN 108727611B CN 201810683950 A CN201810683950 A CN 201810683950A CN 108727611 B CN108727611 B CN 108727611B
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- dioctyl sebacate
- emulsification
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/2053—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the additives only being premixed with a liquid phase
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
- C08J2307/02—Latex
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of methods for emulsifying dioctyl sebacate, and dioctyl sebacate is mixed with nonionic surface active agent, heat, and water is added under room temperature, can successful emulsification dioctyl sebacate after stirring.Using the method for the present invention, the dioctyl sebacate product after emulsification is stable, uniform, does not occur oil slick and lamination yet after placing 12 months.Product of the present invention and natural rubber are kneaded, after vulcanizate is processed into vulcanization, physical property generates certain variation, Shao Er A type hardness tester is 40~43 degree, and tensile strength is 16.15~18.10MPa, and elongation rate of tensile failure reaches 795%~830%, using the dioctyl sebacate after present invention emulsification, plasticization effect is obvious, and dioctyl sebacate is good with latex-compatible, no sweating phenomenon.
Description
Technical field
The present invention relates to high-molecular compound processing technique fields, and in particular to a kind of side for emulsifying dioctyl sebacate
Method.
Background technique
Dioctyl sebacate is colourless or yellowish oily liquids, is under the jurisdiction of di-fatty acid ester type plasticizer, is plastics
Plasticizer in industry, plasticizing efficiency are high, and volatility is low, not only have excellent cold resistance, but also have preferable heat resistance, fast light
Property and electrical insulating property, and heat when have good lubricity, keep products appearance, feel good, especially suitable for make it is resistance to
The products such as cold wire cable material, artificial leather, film, also can be used as lubricating oil and synthetic rubber softening agent.But dioctyl sebacate
Poor with the compatibility of Heveatex, oil resistivity is bad, and migration is larger, is easily extracted out by hydro carbons, and water resistance is also not satisfactory, because
This, is often used in combination with phthalate, and cannot be added directly into Heveatex.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of method for emulsifying dioctyl sebacate, effectively solves
Certainly dioctyl sebacate cannot be added directly into the problems in Heveatex, and use dioctyl sebacate of the invention, plasticising
Effect becomes apparent from.
The technical scheme is that
A method of emulsification dioctyl sebacate, comprising the following steps: sequentially by dioctyl sebacate and non-ionic
Surfactant mixing is heated to 60 DEG C~80 DEG C, and stirring 5min~10min makes it dissolve, and keeps revolving speed constant after dissolution,
25 DEG C~35 DEG C of water is added under normal temperature condition while stirring, makes the mass fraction of dioctyl sebacate 20%~40%, so
After continue stir 60min~90min.
Preferably, the nonionic surface active agent includes sorbester p18 and polysorbate60.
Preferably, the mass ratio of the sorbester p18 and polysorbate60 is 0.3~0.45:0.55~0.7.
Preferably, the mass ratio of the sorbester p18 and polysorbate60 is 0.45:0.55.
Preferably, the mass ratio of dioctyl sebacate and nonionic surface active agent is 3~5:1.
Preferably, mixing speed is 500r/min~3500r/min.
Preferably, the time for adding water is to add in 3min~5min.
Compared with prior art, the beneficial effects of the present invention are:
The present invention mixes dioctyl sebacate with nonionic surface active agent, heating, and adds water and stirs at normal temperature,
Successful emulsification dioctyl sebacate.Using the method for the present invention, the dioctyl sebacate product after emulsification is stable, uniform, places 12
Do not occur oil slick and lamination yet after a month.Product of the present invention and natural rubber are kneaded, after vulcanizate is processed into vulcanization, object
Rationality can generate certain variation.Shao Er A type hardness tester is 40~43 degree, and tensile strength is 16.15~18.10MPa, breaks elongation
Rate reaches 800%~830%, and relative to comparative example, using the dioctyl sebacate after present invention emulsification, plasticization effect is obvious,
Dioctyl sebacate is good with latex-compatible, and (when compatibility deficiency, plasticizer can be isolated no sweating phenomenon from resin
Phenomena such as coming, showing as exudation sweating).Using the dioctyl sebacate of embodiment 1, plasticization effect is become apparent from.
Specific embodiment
Below by specific embodiment, invention is further described in detail.
Experimental method used in the embodiment of the present invention is conventional method unless otherwise specified.
Material used in the embodiment of the present invention, reagent etc., are commercially available unless otherwise specified.
Room temperature described in the embodiment of the present invention is 25~35 DEG C.
Embodiment 1:
Sequentially dioctyl sebacate and nonionic surface active agent are added in agitator tank, are heated to 75 DEG C, stirring
10min makes it dissolve, revolving speed 2000r/min.Keep revolving speed constant after dissolution, 30 DEG C of addition while stirring is pure at normal temperature
Water adds the mass fraction of dioctyl sebacate in 25%, 3min~5min.Then proceed to stirring 80min, successful emulsification
Dioctyl sebacate.Wherein, the mass ratio of dioctyl sebacate and nonionic surface active agent is 4:1, described non-ionic
Surfactant is the mixture of sorbester p18 and polysorbate60, and the mass ratio of sorbester p18 and polysorbate60 is 0.45:0.55.
Embodiment 2:
Sequentially dioctyl sebacate and nonionic surface active agent are added in agitator tank, the temperature of 80 DEG C of heating is stirred
It mixes 10min to make it dissolve, revolving speed 3500r/min.It keeps revolving speed constant after dissolution, is added 35 DEG C while stirring at normal temperature
Pure water adds the mass fraction of dioctyl sebacate in 40%, 3min~5min.Then proceed to stirring 90min, success cream
Change dioctyl sebacate.Wherein, the mass ratio of dioctyl sebacate and nonionic surface active agent is 3:1, the nonionic
Type surfactant is the mixture of sorbester p18 and polysorbate60, and the mass ratio of sorbester p18 and polysorbate60 is 0.45:0.55.
Embodiment 3:
Sequentially dioctyl sebacate and nonionic surface active agent are added in agitator tank, the temperature of 60 DEG C of heating is stirred
It mixes 5min to make it dissolve, revolving speed 500r/min.Keep revolving speed constant after dissolution, 25 DEG C of addition while stirring is pure at normal temperature
Water adds the mass fraction of dioctyl sebacate in 20%, 3min~5min.Then proceed to stirring 60min, successful emulsification
Dioctyl sebacate.Wherein the mass ratio of dioctyl sebacate and nonionic surface active agent is 5:1, the non-ionic table
Face activating agent is the mixture of sorbester p18 and polysorbate60, and the mass ratio of sorbester p18 and polysorbate60 is 0.3:0.7.
Embodiment 4:
Sequentially dioctyl sebacate and nonionic surface active agent are added in agitator tank, the temperature of 80 DEG C of heating is stirred
It mixes 10min to make it dissolve, revolving speed 500r/min.It keeps revolving speed constant after dissolution, is added 25 DEG C while stirring at normal temperature
Pure water adds the mass fraction of dioctyl sebacate in 40%, 3min~5min.Then proceed to stirring 90min, success cream
Change dioctyl sebacate.Wherein the mass ratio of dioctyl sebacate and nonionic surface active agent is 4:1.It is described non-ionic
Surfactant is the mixture of sorbester p18 and polysorbate60, and the mass ratio of sorbester p18 and polysorbate60 is 0.3:0.7.
Embodiment 5:
Embodiment 5 the difference from embodiment 1 is that, sorbester p18 and polysorbate60 are replaced with into span 20 and polysorbas20.
Embodiment 6:
Embodiment 6 the difference from embodiment 1 is that, sorbester p18 and polysorbate60 are replaced with into sorbester p17 and Tween 80.
Test example 1:
The emulsification sample of Examples 1 to 6 is saved respectively and sees whether that there are oil slick and layering are existing with after 12 months for 24 hours
As the results are shown in Table 1.
Table 1
As known from Table 1, using the method for the present invention, the dioctyl sebacate product after emulsification is stable, uniform, places 12 months
Do not occur oil slick and lamination yet afterwards.
Comparative example 1:
Sequentially by dioctyl sebacate, mass ratio be 0.2:0.8 nonionic surface active agent sorbester p18 and polysorbate60,
It is added in agitator tank, stirring 10min makes it dissolve, revolving speed 2000r/min.Keep revolving speed constant after dissolution, at normal temperature side
The pure water that side is added 30 DEG C is stirred, adds the mass fraction of dioctyl sebacate in 10%, 3min~5min.It then proceedes to
Stir 80min.Wherein the mass ratio of dioctyl sebacate and nonionic surface active agent is 2:1.
Comparative example 2:
Sequentially by dioctyl sebacate, mass ratio be 0.6:0.4 nonionic surface active agent sorbester p18 and polysorbate60,
It is added in agitator tank, is heated to 90 DEG C, stirring 10min makes it dissolve, revolving speed 2000r/min.Keep revolving speed constant after dissolution,
30 DEG C of pure water is added while stirring at normal temperature, adds the mass fraction of dioctyl sebacate in 50%, 10min.Then
Continue to stir 80min.Wherein the mass ratio of dioctyl sebacate and nonionic surface active agent is 6:1.
Test example 2: influence of the plasticizer to vulcanizating glue physical performance
The sample of Examples 1 to 6 and comparative example 1~2 presses mixing formula (parts by weight): 100 parts of natural rubber, zinc oxide 6
Part, it 0.5 part of stearic acid, 0.5 part of captax, 10 parts of plasticizer, 3.5 parts of sulphur, is kneaded, obtains rubber compound, rubber compound
Vulcanizing treatment is carried out, vulcanizate sample is obtained, measures mechanical property, rate of extension 500mm according to GB/T 528-2009
min-1.Table 2 is the physical property of each vulcanizate sample.
2 vulcanizating glue physical performance of table
From table 2 it can be seen that each vulcanizating glue physical performance generates certain variation, using the method for the present invention, Shao Er A type is hard
Degree is 40~43 degree, and tensile strength is 16.15~18.10MPa, and elongation rate of tensile failure reaches 795%~830%, relative to comparison
Example, using the dioctyl sebacate after present invention emulsification, plasticization effect is obvious, and dioctyl sebacate is good with latex-compatible,
Without sweating phenomenon (phenomena such as when compatibility deficiency, plasticizer can be separated from resin, show as exudation sweating).Using reality
The dioctyl sebacate of example 1 is applied, plasticization effect becomes apparent from.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (4)
1. a kind of method for emulsifying dioctyl sebacate, which comprises the following steps: sequentially by dioctyl sebacate and
Nonionic surface active agent mixing is heated to 60 DEG C~80 DEG C, and stirring 5min~10min makes it dissolve, and keeps turning after dissolution
Speed is constant, and 25 DEG C~35 DEG C of water is added while stirring under normal temperature conditions, makes the mass fraction of dioctyl sebacate 20%
~40%, then proceed to stirring 60min~90min；
The nonionic surface active agent is the mixture of sorbester p18 and polysorbate60；The mass ratio of sorbester p18 and polysorbate60 is
0.3~0.45:0.55~0.7；
The mass ratio of dioctyl sebacate and nonionic surface active agent is 3~5:1.
2. a kind of method for emulsifying dioctyl sebacate according to claim 1, which is characterized in that the sorbester p18 and
The mass ratio of polysorbate60 is 0.45:0.55.
3. a kind of method for emulsifying dioctyl sebacate according to claim 1, which is characterized in that mixing speed is
500r/min~3500r/min.
4. a kind of method for emulsifying dioctyl sebacate according to claim 1, which is characterized in that the time for adding water is
It is added in 3min~5min.
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| CN201810683950.7A CN108727611B (en) | 2018-06-28 | 2018-06-28 | A method of emulsification dioctyl sebacate |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503542A (en) * | 2008-02-04 | 2009-08-12 | 中国石油天然气股份有限公司 | Heat resisting flame retardant resin composition and preparation thereof |
| CN107163881A (en) * | 2017-05-25 | 2017-09-15 | 句容市兴武包装有限公司 | A kind of preparation method of aqueous heat-seal adhesive |
| CN107955290A (en) * | 2017-11-17 | 2018-04-24 | 中红普林（北京）医疗用品高新技术研究院有限公司 | A kind of disposable PVC glove and preparation method thereof |
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2018
- 2018-06-28 CN CN201810683950.7A patent/CN108727611B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503542A (en) * | 2008-02-04 | 2009-08-12 | 中国石油天然气股份有限公司 | Heat resisting flame retardant resin composition and preparation thereof |
| CN107163881A (en) * | 2017-05-25 | 2017-09-15 | 句容市兴武包装有限公司 | A kind of preparation method of aqueous heat-seal adhesive |
| CN107955290A (en) * | 2017-11-17 | 2018-04-24 | 中红普林（北京）医疗用品高新技术研究院有限公司 | A kind of disposable PVC glove and preparation method thereof |
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