CN113045404A - Preparation method of zinc monostearate for PVC heat stabilizer - Google Patents
Preparation method of zinc monostearate for PVC heat stabilizer Download PDFInfo
- Publication number
- CN113045404A CN113045404A CN202110276317.8A CN202110276317A CN113045404A CN 113045404 A CN113045404 A CN 113045404A CN 202110276317 A CN202110276317 A CN 202110276317A CN 113045404 A CN113045404 A CN 113045404A
- Authority
- CN
- China
- Prior art keywords
- zinc
- monostearate
- heat stabilizer
- stearic acid
- pvc heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- IYMSVBDSTPPHKQ-UHFFFAOYSA-M CCCCCCCCCCCCCCCCCC(=O)O[Zn] Chemical compound CCCCCCCCCCCCCCCCCC(=O)O[Zn] IYMSVBDSTPPHKQ-UHFFFAOYSA-M 0.000 title claims abstract description 55
- 239000012760 heat stabilizer Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 34
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 30
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000008117 stearic acid Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000012266 salt solution Substances 0.000 claims abstract description 13
- 150000003751 zinc Chemical class 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 8
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- 239000011592 zinc chloride Substances 0.000 claims description 4
- 235000005074 zinc chloride Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- -1 hydroxide ions Chemical class 0.000 abstract description 18
- 239000011701 zinc Substances 0.000 abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052725 zinc Inorganic materials 0.000 abstract description 10
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 231100000956 nontoxicity Toxicity 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 238000001308 synthesis method Methods 0.000 abstract description 3
- 150000007529 inorganic bases Chemical class 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 description 12
- 229920000915 polyvinyl chloride Polymers 0.000 description 11
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 3
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004736 wide-angle X-ray diffraction Methods 0.000 description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- HENMSNJYDGNBMU-UHFFFAOYSA-M calcium;zinc;octadecanoate Chemical compound [Ca+2].[Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O HENMSNJYDGNBMU-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
Abstract
The invention discloses a preparation method of zinc monostearate for a PVC heat stabilizer, which comprises the following steps: putting stearic acid and an organic composite solvent into a reactor, adding an inorganic base, stirring to completely dissolve the stearic acid, slowly dropwise adding a zinc salt solution, stirring, cooling, filtering, and drying to obtain the zinc monostearate. The zinc monostearate heat stabilizer prepared by the invention contains hydroxide ions and stearate ions, and the two different ions can generate a synergistic effect with each other; meanwhile, compared with the traditional double stearate ion zinc stearate heat stabilizer, the new hydroxide ion replaces one stearate ion, so that the zinc content of the target product is greatly improved, and the heat stabilizing effect of the heat stabilizer is improved due to the improvement of the zinc content. The zinc monostearate heat stabilizer prepared by the invention has the advantages of simple synthesis method, good stability, no heavy metal element contained in the product, no toxicity and environmental protection.
Description
Technical Field
The invention relates to a preparation method of zinc monostearate for a PVC (polyvinyl chloride) heat stabilizer, belonging to the technical field of synthesis of PVC processing aids.
Background
Polyvinyl chloride (PVC) is one of five general-purpose resins in the world, and is one of the earliest industrialized resins, and its yield is second only to polyethylene, and because of its excellent performance and low price, it is widely used in various fields of people's lives. But because of the defects of the structure, the dehydrochlorination reaction is easy to occur in the heating process so as to degrade. Therefore, heat stabilizers must be added in PVC processing applications.
Currently, lead salts, metallic soaps, organotin compounds, rare earths and organic auxiliary heat stabilizers are mainly used as industrial PVC heat stabilizers. Although lead stabilizers have a good stabilizing effect, they pollute the environment and are harmful to the human body. Therefore, the development of the heat stabilizer which is environment-friendly, multifunctional, nontoxic and reasonable in price is necessary. Among the nontoxic environment-friendly heat stabilizers, calcium zinc stabilizers have become a hot spot in the research and development of heat stabilizers at home and abroad due to the advantages of nontoxicity, environmental protection, low price and the like. However, calcium zinc stabilizers mostly mainly comprise calcium zinc stearate at present, and a traditional zinc stearate heat stabilizer contains two stearate groups, so that the content of effective metals is not high, and the heat stability effect is greatly reduced.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the preparation method of the zinc monostearate for the PVC heat stabilizer is high in zinc content, free of any heavy metal element, non-toxic, environment-friendly, excellent in heat stability and light transmittance.
In order to achieve the purpose, the technical scheme of the invention is as follows: a preparation method of zinc monostearate for a PVC heat stabilizer comprises the following steps:
s1: adding stearic acid and an organic composite solvent into a reactor according to a mass ratio of 1: 5-20, and mixing and stirring for 10-50 min;
s2: adding an inorganic alkali compound into a reactor, wherein the mass ratio of the inorganic alkali compound to stearic acid is 2-5: 1, continuously stirring for 50-60 minutes until stearic acid is completely dissolved;
s3: controlling the temperature in the reactor at 40-100 ℃, then slowly dropwise adding a zinc salt solution, wherein the molar ratio of stearic acid to the zinc salt solution is 1: 1-1.5, stirring in the reactor, reacting for 2-4 h, and then cooling, filtering and drying to obtain a finished product of zinc monostearate.
Preferably, the mass ratio of the stearic acid to the organic complex solvent is 1:5, and the molar ratio of the stearic acid to the zinc salt solution is 1:1.
Preferably, the mass ratio of the stearic acid to the organic composite solvent is 1: 20; the molar ratio of the stearic acid to the zinc salt solution is 1: 1.5.
Preferably, the organic complex solvent is a higher alcohol.
Preferably, the higher alcohol is an alcohol having a carbon number of 4 to 9.
Preferably, the inorganic alkali compound is one of sodium hydroxide solution, potassium hydroxide solution or other soluble alkalis.
Preferably, the zinc salt solution is one of a zinc chloride solution, a zinc nitrate solution or a zinc sulfate solution.
Preferably, in step S3, the dropping rate of the zinc salt solution is 0.1-0.5 ml/S.
Preferably, in step S3, the zinc monostearate is vacuum filtered by using a suction pump to reduce the pressure in the reactor, thereby achieving the purpose of solid-liquid separation.
The invention has the following beneficial effects: the zinc monostearate heat stabilizer prepared by the invention contains hydroxide ions and stearate ions, and the two different ions can generate a synergistic effect with each other, so that the heat stabilization effect of the zinc monostearate heat stabilizer is improved; meanwhile, compared with the traditional double stearate ion zinc stearate heat stabilizer, the new hydroxide ion replaces one stearate ion, so that the zinc content of the target product is greatly improved, and the heat stabilizing effect of the heat stabilizer is improved due to the improvement of the zinc content. The zinc monostearate heat stabilizer prepared by the invention has the advantages of simple synthesis method, good stability, no heavy metal element contained in the product, no toxicity, environmental protection, effective adsorption of free HCL due to a special structure, and excellent heat stability and light transmittance.
Detailed Description
The present invention is further described below with reference to specific examples in order to facilitate understanding by those skilled in the art.
Example 1:
the embodiment provides a preparation method of zinc monostearate for a PVC heat stabilizer, which comprises the steps of adding stearic acid and an organic composite solvent into a reactor according to the mass ratio of 1:5, mixing and stirring for 10 min; adding an inorganic alkali compound into the reactor, wherein the mass ratio of the inorganic alkali compound to stearic acid is 2:1, the inorganic alkali compound is a sodium hydroxide solution, and continuously stirring for 50min until the stearic acid is completely dissolved; controlling the temperature in the reactor at 40 ℃, then slowly dropwise adding a zinc chloride solution at a dropping rate of 0.1ml/s, wherein the molar ratio of stearic acid to the zinc chloride solution is 1:1, reacting for 2 hours under stirring, and then cooling, filtering and drying to obtain the zinc monostearate.
In the reaction for synthesizing the zinc monostearate, the organic composite solvent is adopted to control the speed of combining zinc ions with stearate ions and hydroxide ions, so that hydroxide groups are introduced into a target product, and finally the zinc monostearate heat stabilizer is obtained. The zinc content of the target product zinc monostearate is measured to be 17.34 percent by a chemical titration method; the glass transition temperature Tg of the target product zinc monostearate is measured to be 156 ℃ by DSC (differential scanning calorimeter); the Tg of the traditional zinc stearate is 120 ℃, which shows that a new substance other than zinc stearate is generated; the zinc monostearate as the target product is found to be 1540cm in FT-IR infrared spectrum-1Presents an RCOO-Characteristic absorption peaks, which show that the target product mainly exists in a complex structure form; the wide-angle X-ray diffraction method is adopted to measure that the zinc monostearate of the target product only has one peak within 18-25 degrees of 2H, and the corresponding crystal face spacing is 0.4083 nm; according to the aboveThe analysis and test result shows that the structural formula of the target product zinc monostearate is Zn (C)17H35COO) (OH) wherein C17H35COO_Is stearate ion, OH_Is hydroxyl ion, and meets the expected requirement.
Example 2:
the embodiment provides a preparation method of zinc monostearate for a PVC heat stabilizer, which comprises the steps of adding stearic acid and an organic composite solvent into a reactor according to the mass ratio of 1:11, mixing and stirring for 30 min; adding an inorganic alkali compound into the reactor, wherein the mass ratio of the inorganic alkali compound to stearic acid is 3:1, the inorganic alkali compound is potassium hydroxide solution, and continuously stirring for 55min until the stearic acid is completely dissolved; controlling the temperature in the reactor at 70 ℃, then slowly dropwise adding a zinc nitrate solution at a dropping rate of 0.3ml/s, wherein the molar ratio of stearic acid to the zinc nitrate solution is 1:1.3, reacting for 3 hours under stirring, and then cooling, filtering and drying to obtain the zinc monostearate.
In the reaction for synthesizing the zinc monostearate, the organic composite solvent is adopted to control the speed of combining zinc ions with stearate ions and hydroxide ions, so that hydroxide groups are introduced into a target product, and finally the zinc monostearate heat stabilizer is obtained. The zinc content of the target product zinc monostearate is measured to be 16.84 percent by a chemical titration method; the glass transition temperature Tg of the target product zinc monostearate is measured by DSC (differential scanning calorimeter) to be 158 ℃; the Tg of the traditional zinc stearate is 120 ℃, which shows that a new substance other than zinc stearate is generated; the target product zinc monostearate is found to be 1550cm in FT-IR infrared spectroscopy-1Presents an RCOO-Characteristic absorption peaks, which show that the target product mainly exists in a complex structure form; the wide-angle X-ray diffraction method is adopted to measure that the zinc monostearate of the target product only has one peak within 18-25 degrees of 2H, and the corresponding crystal face spacing is 0.4083 nm; according to the analysis and test results, the structural formula of the target product zinc monostearate is deduced to be Zn (C)17H35COO) (OH) wherein C17H35COO_For the formation of stearateOH, a seed_Is hydroxyl ion, and meets the expected requirement.
Example 3:
the embodiment provides a preparation method of zinc monostearate for a PVC heat stabilizer, which comprises the steps of adding stearic acid and an organic composite solvent into a reactor according to the mass ratio of 1:20, mixing and stirring for 50 min; adding an inorganic alkali compound into the reactor, wherein the mass ratio of the inorganic alkali compound to stearic acid is 5:1, the inorganic alkali compound is potassium hydroxide solution, and continuously stirring for 60min until the stearic acid is completely dissolved; controlling the temperature in the reactor at 100 ℃, then slowly dropwise adding a zinc sulfate solution at a dropping rate of 0.5ml/s, wherein the molar ratio of stearic acid to the zinc sulfate solution is 1:1.5, reacting for 4 hours under stirring, and then cooling, filtering and drying to obtain the zinc monostearate.
In the reaction for synthesizing the zinc monostearate, the organic composite solvent is adopted to control the speed of combining zinc ions with stearate ions and hydroxide ions, so that hydroxide groups are introduced into a target product, and finally the zinc monostearate heat stabilizer is obtained. The zinc content of the target product zinc monostearate is 18.51 percent by chemical titration; the glass transition temperature Tg of the target product zinc monostearate is measured to be 159 ℃ by DSC (differential scanning calorimeter); the Tg of the traditional zinc stearate is 120 ℃, which shows that a new substance other than zinc stearate is generated; the target product zinc monostearate is found to be 1545cm in FT-IR infrared spectrum-1Presents an RCOO-Characteristic absorption peaks, which show that the target product mainly exists in a complex structure form; the wide-angle X-ray diffraction method is adopted to measure that the zinc monostearate of the target product only has one peak within 18-25 degrees of 2H, and the corresponding crystal face spacing is 0.4083 nm; according to the analysis and test results, the structural formula of the target product zinc monostearate is deduced to be Zn (C)17H35COO) (OH) wherein C17H35COO_Is stearate ion, OH_Is hydroxyl ion, and meets the expected requirement.
The invention has the following beneficial effects: the zinc monostearate heat stabilizer prepared by the invention contains hydroxide ions and stearate ions, and the two different ions can generate a synergistic effect with each other, so that the heat stabilization effect of the zinc monostearate heat stabilizer is improved; meanwhile, compared with the traditional double stearate ion zinc stearate heat stabilizer, the new hydroxide ion replaces one stearate ion, so that the zinc content of the target product is greatly improved, and the improvement of the zinc content can also improve the heat stabilization effect of the heat stabilizer; in addition, the zinc monostearate heat stabilizer prepared by the invention has the advantages of simple synthesis method, good stability, no heavy metal element contained in the product, no toxicity, environmental protection, effective adsorption of free HCL due to a special structure, and excellent heat stability and light transmittance.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A preparation method of zinc monostearate for a PVC heat stabilizer is characterized by comprising the following steps: the method comprises the following steps:
s1: adding stearic acid and an organic composite solvent into a reactor according to a mass ratio of 1: 5-20, and mixing and stirring for 10-50 min;
s2: adding an inorganic alkali compound into a reactor, wherein the mass ratio of the inorganic alkali compound to stearic acid is 2-5: 1, continuously stirring for 50-60 min until stearic acid is completely dissolved;
s3: controlling the temperature in the reactor at 40-100 ℃, then slowly dropwise adding a zinc salt solution, wherein the molar ratio of stearic acid to the zinc salt solution is 1: 1-1.5, stirring and reacting in the reactor for 2-4 h, and then cooling, filtering and drying to obtain a finished product of zinc monostearate.
2. The method for preparing zinc monostearate for PVC heat stabilizer according to claim 1, wherein the method comprises the following steps: the mass ratio of the stearic acid to the organic composite solvent is 1:5, and the molar ratio of the stearic acid to the zinc salt solution is 1:1.
3. The method for preparing zinc monostearate for PVC heat stabilizer according to claim 1, wherein the method comprises the following steps: the mass ratio of the stearic acid to the organic composite solvent is 1:20, and the molar ratio of the stearic acid to the zinc salt solution is 1: 1.5.
4. The method for preparing zinc monostearate for PVC heat stabilizer according to claim 1, wherein the method comprises the following steps: the organic composite solvent is high-carbon alcohol.
5. The method for preparing zinc monostearate for PVC heat stabilizer according to claim 4, wherein the method comprises the following steps: the higher alcohol is C4-C9 alcohol.
6. The method for preparing zinc monostearate for PVC heat stabilizer according to any of claims 1 to 3, characterized in that: the inorganic alkali compound is one of sodium hydroxide solution, potassium hydroxide solution or other soluble alkalis.
7. The method for preparing zinc monostearate for PVC heat stabilizer according to any of claims 1 to 3, characterized in that: the zinc salt solution is one of a zinc chloride solution, a zinc nitrate solution or a zinc sulfate solution.
8. The method for preparing zinc monostearate for PVC heat stabilizer according to any of claims 1 to 3, characterized in that: in step S3, the dropping rate of the zinc salt solution is 0.1-0.5 ml/S.
9. The method for preparing zinc monostearate for PVC heat stabilizer according to any of claims 1 to 3, characterized in that: in step S3, the zinc monostearate is vacuum filtered by using an air pump to reduce the pressure in the reactor, thereby achieving the purpose of solid-liquid separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276317.8A CN113045404A (en) | 2021-03-15 | 2021-03-15 | Preparation method of zinc monostearate for PVC heat stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276317.8A CN113045404A (en) | 2021-03-15 | 2021-03-15 | Preparation method of zinc monostearate for PVC heat stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113045404A true CN113045404A (en) | 2021-06-29 |
Family
ID=76512231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110276317.8A Pending CN113045404A (en) | 2021-03-15 | 2021-03-15 | Preparation method of zinc monostearate for PVC heat stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113045404A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358221A (en) * | 2019-07-29 | 2019-10-22 | 唐山师范学院 | PVC sorbic acid lanthanum composite thermal stabilizer |
| CN112174810A (en) * | 2020-09-15 | 2021-01-05 | 山东省高密市友和助剂有限公司 | Preparation method of modified zinc stearate |
-
2021
- 2021-03-15 CN CN202110276317.8A patent/CN113045404A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358221A (en) * | 2019-07-29 | 2019-10-22 | 唐山师范学院 | PVC sorbic acid lanthanum composite thermal stabilizer |
| CN112174810A (en) * | 2020-09-15 | 2021-01-05 | 山东省高密市友和助剂有限公司 | Preparation method of modified zinc stearate |
Non-Patent Citations (2)
| Title |
|---|
| 杨占红 等: "硬脂酸铝制备方法的研究", 《河南化工》 * |
| 贾志军: "硬脂酸盐生产工艺改进", 《江苏化工》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109897070B (en) | Preparation method of tetraamminepalladium acetate (II) | |
| CN108440439B (en) | Zr metal organic framework material based on T-type ligand, preparation method and application thereof | |
| CN110358221B (en) | Lanthanum sorbate composite heat stabilizer for PVC | |
| CN102093654A (en) | Zinc-aluminium terres rares hydrotalcite compound heat stabilizer for polyvinyl chloride (PVC) as well as preparation and application of compound heat stabilizer | |
| CN109761290B (en) | Preparation method of potassium platinochloride | |
| CN113045404A (en) | Preparation method of zinc monostearate for PVC heat stabilizer | |
| CN113024371A (en) | Preparation method of calcium monostearate for PVC heat stabilizer | |
| CN112608570B (en) | Polyvinyl chloride auxiliary heat stabilizer and preparation method thereof | |
| CN113231032B (en) | MoS2QDs @ Zr-MOF/Co doped Fe3O4Boron isotope adsorbent and preparation method thereof | |
| CN112831090A (en) | Preparation method of epoxidized calcium zinc oleate for PVC heat stabilizer | |
| CN111423733A (en) | Novel lanthanum orotate composite PVC heat stabilizer | |
| CN112094185A (en) | Transition metal-polyacid derivatives with novel structure and preparation method thereof | |
| CN114453032A (en) | Modified ion exchange resin, preparation method thereof and application thereof in polyhydric alcohol dehydration reaction | |
| CN112898152A (en) | Preparation method of ethoxy diethyl methylene malonate | |
| KR20140054800A (en) | Methods of preparing a 1-deoxy-1-(2-hydroxyethyl amino)-d-glucitol and miglitol | |
| JP4674633B2 (en) | Manufacturing method of near-infrared absorber | |
| CN114276236A (en) | Preparation method for synthesizing zinc benzoate by solvent method | |
| JP2001097984A (en) | Novel near infrared-absorbing compound | |
| CN113930120B (en) | High-strength explosion-proof protective coating and production process thereof | |
| JP4530086B2 (en) | Near-infrared absorber | |
| CN114163327A (en) | Preparation method of triethylene glycol diisocaprylate | |
| CN114773213B (en) | Production process of o-aminoanisole | |
| CN101531591B (en) | Dicarboxylic acid monobromobenzene ester rare earth salt and preparation method and application thereof | |
| CN113045513A (en) | Preparation method of multifunctional processing aid epoxy oleic acid monoglyceride for PVC (polyvinyl chloride) | |
| US2207680A (en) | Ascorbic acids and methods of making same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210629 |
|
| RJ01 | Rejection of invention patent application after publication |